WO2017133671A1

WO2017133671A1 - Flexible tube connecting structure, and vacuum cleaner employing same

Info

Publication number: WO2017133671A1
Application number: PCT/CN2017/072845
Authority: WO
Inventors: 范嘉玲; 瘳泓斌; 陈佳兵; 黄月林; 王红兵
Original assignee: 珠海格力电器股份有限公司
Priority date: 2016-02-02
Filing date: 2017-02-03
Publication date: 2017-08-10
Also published as: EP3412189A1; EP3412189B1; CN105534411B; EP3412189A4; CN105534411A

Abstract

A flexible tube connecting structure, and vacuum cleaner employing same. The flexible tube connecting structure comprises a flexible tube connector (2) provided at an end portion of a flexible tube (1), and an engagement collar (3) rotatably connected to the flexible tube (1) and having a position limited by the flexible tube connector (2), wherein the engagement collar (3) comprises a main body (31) and an elastic stopper portion (32) provided at one end of the main body (31), and an inner diameter of the main body (31) is not less than an outer diameter of the flexible tube connector (2). When the engagement collar (3) passes the flexible tube connector (2) to be sleeved on the flexible tube (1), elastic deformation of the elastic stopper portion (32) occurs, and the elastic stopper portion (32) expands outward. After the engagement collar (3) passes the flexible tube connector (2), the elastic stopper portion (32) restores to the original state and cooperates with the flexible tube connector (2) to achieve position limiting with the engagement collar (3). Also provided is a vacuum cleaner employing a flexible tube connecting structure. By providing the elastic stopper portion (32) on one end of the main body (31) of the engagement collar (3), the present invention achieves position limiting with the engagement collar (3) by mounting the engagement collar (3) to the flexible tube (1) and employing cooperation of the engagement collar and the flexible tube connector (2).

Description

Hose connecting structure and vacuum cleaner using same

This application claims priority to Chinese Patent Application No. 201610074135.1, entitled "Hose Connection Structure and Vacuum Cleaner", which is filed on February 2, 2016, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of connection joints, and more particularly to a hose connection structure and a vacuum cleaner using the same.

Background technique

The main body and handle of the vacuum cleaner are connected by a hose, and the hose can be rotated by providing a collar at the end of the hose. At the same time, most vacuum cleaners have a hose that only has a handle end that can be rotated and cannot be rotated with the host end.

In the prior art, the structure for realizing the rotation of the hose is to sleeve a buckle with a buckle before the end of the hose is glued to fix the hose joint, and the collar can be rotated relative to the hose. Then, the snap ring is engaged with the buckle on the handle body to realize the mounting of the collar on the handle body. Since the hose and the collar are in rotational connection, the hose and hose structure can be rotated within the handle body.

The above structure for realizing the rotation of the hose has the following problems: The first problem is that since only the hose at the handle body can be rotated, the problem that the hose is twisted still occurs when the user uses the vacuum cleaner; the second problem is: The collar with the snap fastener is inserted into the hose before the hose connector is fixed. If the collar is forgotten before fixing the hose connector, the collar cannot be fitted with the hose due to the factor of the collar structure. The collar of the connector.

In view of the above problems, a hose connecting structure and a vacuum cleaner using the same have been proposed, which can solve the problem of the prior art that the collar cannot be installed after the hose joint is installed at the end of the hose.

Summary of the invention

SUMMARY OF THE INVENTION An object of the present invention is to provide a hose connecting structure which can solve the problem of the prior art that the collar cannot be installed after the hose joint is installed at the end of the hose.

Another object of the present invention is to provide a vacuum cleaner that employs a hose connection structure as described above.

To this end, the present invention employs the following technical solutions:

A hose connection structure comprising a hose joint fixed at an end of a hose, and a collar rotatably connected to the hose at a limit of the hose joint, wherein the collar comprises a collar body, and An elastic limiting portion disposed at one end of the collar body, the inner diameter of the collar body is not less than an outer diameter of the hose joint;

When the collar passes through the hose connector, the elastic limiting portion elastically deforms to open to the outside. When the collar passes through the hose connector, the elastic limiting portion returns to the original shape and cooperates with the hose connector to form a collar. Limits.

As a preferred embodiment of the hose connection structure, the elastic limiting portion is a plurality of elastic arm structures uniformly distributed at one end of the collar body, and the circumference of the inner wall of the plurality of elastic arm structures is elastic In the deformed state, it is larger than the outer diameter of the hose joint, and is smaller than the outer diameter of the hose joint in the state in which no elastic deformation occurs.

As a preferred embodiment of the above hose connection structure, the elastic arm structure includes a spring arm body that is inclined toward the center of the collar.

As a preferred embodiment of the above-described hose connecting structure, the free end of the elastic arm body is provided with a baffle structure disposed perpendicularly to its end.

As a preferred embodiment of the hose connecting structure, the inner side of the joint between the elastic arm body and the baffle structure is a circular arc structure.

As a preferred embodiment of the above-described hose connection structure, the hose joint is fixedly connected to the hose by glue.

A vacuum cleaner comprising a hose, wherein at least one end of the hose is provided with a hose connection structure as described above.

As a preferred embodiment of the vacuum cleaner, a handle and a main body are further included, and the hose connection structure is disposed at both ends of the hose, and is respectively connected to the handle and the main body through the hose connection structure.

As a preferred embodiment of the vacuum cleaner, a joint is disposed on the main body and the handle, and the joint is fixedly connected to the collar body of the collar.

As a preferred solution of the vacuum cleaner, the joint body and the collar body of the collar are fixedly connected by the cooperation of the elastic buckle and the limiting hole.

The beneficial effects of the present invention are: in the present invention, by providing an elastic limiting portion at one end of the collar body of the collar, and when the collar is inserted into the hose having the hose joint, the deformation of the elastic limiting portion is Recovering, the collar is loaded into the hose and the collar is engaged with the hose connector to form a collar limit. Thereby, the insertion of the collar into the hose with the hose connection is achieved.

DRAWINGS

1 is a schematic structural view of a hose connecting structure provided by an embodiment of the present invention;

2 is a schematic structural view of a hose connecting structure and a joint provided by a specific embodiment of the present invention;

3 is a schematic structural view of a hose assembly according to an embodiment of the present invention;

Figure 4 is a partial enlarged view of "I" of Figure 3.

among them:

1: hose; 2: hose connector; 3: collar; 4: handle; 5: connector;

31: collar body; 32: elastic limit portion;

51: limit hole;

311: elastic buckle;

321: elastic arm body; 322: baffle structure.

detailed description

The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

As shown in FIG. 1 to FIG. 4, the present embodiment provides a hose connecting structure including a hose joint 2 fixed at the end of the hose 1, and a hose 1 at a limit of the hose joint 2 Rotate the connected collar 3. The collar 3 includes a collar body 31 and an elastic limiting portion 32 disposed at one end of the collar body 31. The inner diameter of the collar body 31 is not less than the outer diameter of the hose joint 2, and the collar 3 passes through the hose joint 2 When the hose 1 is inserted, the elastic limiting portion is elastically deformed to open to the outside. When the collar 3 passes through the hose joint 2, the elastic limiting portion 32 returns to the original shape and cooperates with the hose joint 2 to form the limit of the collar 3. Bit.

In the present embodiment, by providing the elastic stopper portion 32 at one end of the collar body 31 of the collar 3, and when the collar 3 is fitted with the hose having the hose joint 2, the deformation by the elastic stopper portion 32 is Recovery, the insertion of the collar 3 into the hose 1 and the formation of the collar 3 by the engagement with the hose connector 2 is achieved. Thereby, the insertion of the collar 3 into the hose 1 having the hose joint 2 is achieved.

Specifically, the elastic limiting portion 32 is a plurality of elastic arm structures uniformly distributed at one end of the collar body 31. The circumference of the inner wall of the plurality of elastic arm structures is larger than the outer diameter of the hose joint 2 in an elastically deformed state. It is smaller than the outer diameter of the hose joint 2 in the state in which no elastic deformation occurs.

When the elastic deformation state is greater than the outer diameter of the hose joint 2, and less than the outer diameter of the hose joint 2 in the state of no elastic deformation, the elastic deformation of the elastic arm structure can be realized to insert the collar 3 into the hose joint 2 The hose 1 can be engaged with the hose joint 2 to form a limit of the collar 3 by the restoration of the elastic arm structure.

The above-mentioned elastic deformation state means that the elastic limiting portion 32 is opened under the action of the hose joint 2, and the state in which the elastic deformation is not caused means that the elastic limit 32 is restored to the original state after passing through the hose joint 2, and the recovery thereof is performed here. The original shape refers to the state in which the elastic limit 32 is normally used.

Specifically, the elastic arm includes a spring body 321 that is inclined toward the center of the collar 3. The above elastic deformation and recovery functions can be achieved with this simple structure.

The free end of the elastic arm main body 321 is provided with a baffle structure 322 disposed perpendicularly to its end. The contact area of the elastic arm and the hose joint 2 can be increased by the arrangement of the baffle structure 322, thereby improving the structural strength of the elastic arm and the smoothness of the rotation of the collar 3.

The inner side of the joint between the elastic arm main body 321 and the baffle structure 322 has a circular arc structure. The inner side here refers to the side where the collar 3 is in contact with the hose joint 2, and by setting it here in a circular arc type structure, the smoothness of the rotation of the collar 3 can be further improved.

The hose connector 2 is fixedly connected to the hose 1 by glue. The hose connector 2 and the hose 1 are fixedly connected by glue, which improves the convenience, firmness and airtightness of the connection. Of course, it is not excluded to use other connection methods for connection, such as threaded connection.

In the present embodiment, there is also provided a vacuum cleaner comprising a hose 1, at least one end of which is provided with a hose connection structure as described above.

Specifically, the vacuum cleaner further includes a handle 4 and a main body. Both ends of the hose 1 are provided with a hose connecting structure, and are respectively rotatably connected to the handle 4 and the main body through the hose connecting structure. Hose 1 is connected via a hose The structure is respectively connected with the main body and the handle 4, whereby the handle end and the main end of the hose 1 can be rotated, so that the problem of the hose entanglement can be prevented during use of the vacuum cleaner.

The hose connecting structure is specifically matched with the main body and the handle 4: the main body and the handle 4 are provided with a joint 5, wherein the joint 5 on the handle 4 and the handle 4 are of an integral structure, and the joint 5 on the main body is a separate unit. Connector. The joint 5 is fixedly connected to the collar body 31 of the collar 3. Specifically, the joint 5 and the collar body 31 of the collar 3 are fixedly connected by the cooperation of the elastic buckle 311 and the limiting hole 5. The connection and disassembly of the connector 5 and the collar 3 can be facilitated by the cooperation of the elastic buckle 311 and the limiting hole 51. Further preferably, the operation button connected to the elastic buckle 311 is further provided by pressing the operation button. The disengagement of the elastic buckle 311 and the limiting hole 51 further facilitates the disassembly of the joint 5 and the collar 3. Preferably, the elastic buckle 311 is disposed on the collar body 31, and the limiting hole is disposed on the joint 5.

The technical principles of the present invention have been described above in connection with specific embodiments. The descriptions are merely illustrative of the principles of the invention and are not to be construed as limiting the scope of the invention. Based on the explanation herein, those skilled in the art can devise various other embodiments of the present invention without departing from the scope of the invention.

Claims

A hose connecting structure comprising a hose joint (2) fixed at an end of the hose (1), and a collar (3) rotatably connected to the hose under the limit of the hose joint (2), The collar (3) comprises a collar body (31), and an elastic limiting portion (32) disposed at one end of the collar body (31), the inner diameter of the collar body (31) is not less than The outer diameter of the hose connector (2);

When the collar (3) penetrates the hose (1) through the hose joint (2), the elastic limiting portion (32) elastically deforms to open outward, when the collar (3) passes through the hose joint (2) After that, the elastic limiting portion (32) is restored to its original shape and cooperates with the hose joint (2) to form a limit of the collar (3).
The hose connection structure according to claim 1, wherein the elastic limiting portion (32) is a plurality of elastic arm structures uniformly distributed at one end of the collar body (31), the plurality of elastic arms The circumference surrounded by the inner wall of the structure is larger than the outer diameter of the hose joint (2) in the state of elastic deformation, and is smaller than the outer diameter of the hose joint (2) in the state in which no elastic deformation occurs.
The hose connection structure according to claim 2, wherein the elastic arm structure includes a spring arm body (321) that is inclined toward a center of the collar.
The hose connection structure according to claim 3, characterized in that the free end of the elastic arm body (321) is provided with a baffle structure (322) disposed perpendicularly to its end.
The hose connecting structure according to claim 4, wherein the inner side of the joint between the elastic arm main body (321) and the baffle structure (322) has a circular arc type structure.
The hose connection structure according to claim 1, characterized in that the hose connector (2) is fixedly connected to the hose (1) by glue.
A vacuum cleaner comprising a hose, characterized in that at least one end of the hose (1) is arranged A hose connection structure according to any one of claims 1-6.
A vacuum cleaner according to claim 7, further comprising a handle (4) and a main body, said hose (1) being provided with said hose connecting structure at both ends thereof, and said hose connecting structure Connected to the handle (4) and the host respectively.
The vacuum cleaner according to claim 8, characterized in that the main body and the handle (4) are provided with a joint (5), and the joint (5) is fixed to the collar body (31) of the collar (3). connection.
The vacuum cleaner according to claim 9, characterized in that the joint (5) and the collar body (31) of the collar (3) are fixedly connected by the cooperation of the elastic buckle (311) and the limiting hole (51). .