vacuum hose connector

Abstract

This utility model discloses a vacuum cleaner hose connector, including a hose with a main body and a connector, a connector sleeved on the main body, and a connector threaded to the connector and clamped and fixed to the connector. The connector and / or the connector wrap around the hose connector. The connector has a socket, and the end of the connector has an insertion part that can be inserted into the socket. Compared with the prior art, the advantages of this utility model are that by the connector sleeved on the main body of the hose and the connector threaded to the connector to clamp and fix the hose connector, and the socket and insertion part of the connector and connector are in a concave-convex fit, the connection between the connector, connector and hose is tight, which improves the sealing performance of the connection and can effectively prevent dust and air from leaking from the connection. At the same time, the threaded connection is easy to disassemble and assemble, and can withstand greater tensile and compressive forces, improving the stability of the connection. It can be disassembled and assembled many times without affecting the connection performance due to elastic fatigue or other reasons.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner pipe technology, to vacuum cleaner pipe connection, and particularly to vacuum cleaner pipe connector. Background Technology

[0002] The vacuum hose is the pipe that connects the vacuum cleaner main unit to the vacuuming tools (such as floor brushes, crevice tools, etc.). For ease of cleaning, replacement, maintenance, storage, and transportation, the vacuum hose is usually detachable and installable.

[0003] For example, the patent with authorization announcement number CN205849392U provides a hose connection structure and a vacuum cleaner using the same, which includes a hose, a hose connector, a retaining ring and a connector. The hose connector is fixed to the end of the hose, the retaining ring is rotated to connect the hose under the limit of the hose connector, and the connector and the retaining ring are engaged by the snap-fit ​​of the elastic buckle and the limiting hole.

[0004] However, in actual production, it is difficult to achieve absolute perfection in the fit between the elastic buckle and the limiting hole. This results in limited tightness between the connector, the retaining ring, and the hose connector when they are clamped together. In other words, there will be gaps between the three, which will become channels for dust and air to leak, causing dust to leak from the connection of the vacuum hose and increasing the difficulty of cleaning. Furthermore, because the elastic buckle is located between the connector and the hose, it is inconvenient to disassemble and assemble the connector and the retaining ring. After repeated disassembly and assembly, the connection will fail due to problems such as elastic fatigue, wear, and reduced connection stability. Utility Model Content

[0005] This utility model addresses the problems of dust leakage, inconvenient disassembly and assembly, and connection failure after repeated disassembly and assembly of existing vacuum cleaner hoses connected by snap-fit. The technical problem to be solved by this utility model is to provide a vacuum cleaner hose connector that can effectively prevent dust leakage, is easy to disassemble and assemble, and has high reliability after repeated disassembly and assembly.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a vacuum cleaner hose connector, including a hose, a connector and a connecting piece, wherein the hose is provided with a hose body and a connecting head provided at one end of the hose body;

[0007] The outer diameter of the connector is larger than the outer diameter of the pipe body. The connector is sleeved on the pipe body and threadedly connected to the joint. The connector and the joint clamp the connector of the hose and fix it. The connector and / or the joint wrap around the connector of the hose.

[0008] The connector is provided with a socket, and the end of the connector is provided with an insertion part, which is inserted into the socket.

[0009] A further preferred embodiment of this utility model is: the socket is a trapezoidal or triangular ring structure with a recess, and the insertion part is a flared shape that mates with the socket.

[0010] A further preferred embodiment of this utility model is: the connector is provided with a threaded connection section, the insertion port is located on the inner ring of the threaded connection section and is set to open towards one end of the threaded connection section.

[0011] A further preferred embodiment of this utility model is: the connector is provided with a limiting part, the limiting part is protruding and spaced apart from the threaded connection section to form the insertion port.

[0012] A further preferred embodiment of this utility model is: the end face of the limiting part facing the side wall of the threaded connection section is an inclined surface, and the inclined surface forms an acute angle with the inner side wall of the threaded connection section.

[0013] A further preferred embodiment of this utility model is: the other end of the threaded connection segment one is connected to a connecting pipe, and the joint is provided with a through hole, the through hole connecting the connecting pipe and the threaded connection segment one.

[0014] A further preferred embodiment of this utility model is that the inner diameter of the through hole is less than or equal to the inner ring size of the limiting part.

[0015] A further preferred embodiment of this utility model is: the connector is provided with a second threaded connection section that can be threadedly connected to the first threaded connection section, and one end of the second threaded connection section is provided with a retaining edge, the retaining edge being located at the opening orientation of the insertion port.

[0016] A further preferred embodiment of this utility model is: the retaining edge extends inward, and the inner ring of the retaining edge has a through hole that fits onto the tube body.

[0017] A further preferred embodiment of this utility model is that the inner diameter of the perforation is smaller than the outer dimension of the connector.

[0018] Compared with the prior art, the advantages of this utility model are that the connector is sleeved on the body of the hose and fixed to the connector head by the threaded connection of the joint. The joint and the connector head are connected by the interlocking of the socket and the insertion part, which makes the connection between the connector, the joint and the hose tight, improving the sealing performance of the connection and effectively preventing dust and air from leaking from the connection. At the same time, the threaded connection is easy to disassemble and assemble, and can withstand greater tensile and compressive forces, improving the stability of the connection. It can be disassembled and assembled many times without affecting the connection performance due to elastic fatigue or other reasons. Attached Figure Description

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be regarded as a limitation on the scope of the present invention. In addition, unless otherwise specified, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated displays, and the drawings are not necessarily drawn to scale.

[0020] Figure 1 This is a schematic diagram of the connection structure of the vacuum tube in a preferred embodiment of the present invention;

[0021] Figure 2 This is an exploded view of the vacuum tube connecting component according to a preferred embodiment of the present invention;

[0022] Figure 3 This is a cross-sectional view of the vacuum tube connection in a preferred embodiment of the present invention;

[0023] Figure 4 This is a preferred embodiment of the present utility model. Figure 3 Enlarged schematic diagram of part A in the middle.

[0024] In the diagram: 1. Hose, 11. Tube body, 12. Connector, 13. Insertion part; 2. Connector, 21. Threaded connection section two, 22. Side guard, 23. Perforation, 24. Embossing; 3. Connector, 31. Socket, 32. Threaded connection section one, 33. Limiting part, 34. Bevel, 35. Connecting section, 36. Through hole, 37. Protrusion. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0026] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0027] This embodiment mainly describes the dust collection hose connector, which can effectively prevent dust leakage, is easy to assemble and disassemble, and has high reliability after multiple disassembly and assembly. The details are as follows:

[0028] like Figure 1-4 As shown, the vacuum cleaner hose connector includes a hose 1 with a hose body 11 and a connector 12, a connector 2 that can be sleeved on the hose body 11 and wrapped around the outer ring of the connector 12, and a connector 3 that is threaded to the connector 2 and clamps the hose 1 connector 12 to fix it. Preferably, the outer diameter of the connector 12 is larger than the outer diameter of the hose body 11.

[0029] To ensure the airtightness of the connection between the hose 1, connector 2 and joint 3, the joint 3 is provided with a recessed socket 31. The socket 31 is arranged in a trapezoidal or triangular ring. The end of the connector 12 is provided with an insertion part 13 that can be inserted into the socket 31. The insertion part 13 is flared outward and fits against the opposite side wall lines or surfaces of the socket 31.

[0030] In this application, the connector 2 is sleeved on the tube body 11 of the hose 1 and is threadedly connected to the connector 3 to clamp and fix the connector 12 of the hose 1. The connector 3 and the connector 12 are connected by a socket 31 and an insertion part 13, which makes the connection between the connector 2, the connector 3 and the hose 1 tight, improving the sealing performance of the connection and effectively preventing dust and air from leaking from the connection. At the same time, the threaded connection is easy to disassemble and assemble, and can withstand greater tensile and compressive forces, improving the stability of the connection. It can be disassembled and assembled many times without affecting the connection performance due to elastic fatigue or other reasons.

[0031] like Figure 2-4 As shown, the connector 3 is provided with a threaded connection section 32 with external threads. One end of the threaded connection section 32 faces the direction of the connector 2 and is threadedly connected to the connector 2. The inner side wall of the other end of the threaded connection section 32 is also provided with a protruding limiting part 33. The socket 31 is located between the inner side wall of the threaded connection section 32 and the limiting part 33. The end face of the limiting part 33 facing the inner side wall of the threaded connection section 32 is an inclined surface 34. The inclined surface 34 and the inner side wall of the threaded connection section 32 form an acute angle, so that the socket 31 has a trapezoidal or triangular structure and is opened at one end of the threaded connection section 32.

[0032] The connector 2 has a threaded connection section 21 with internal threads. The connector 35 is threadedly connected to the threaded connection section 32 through the threaded connection section 21. The end of the threaded connection section 21 away from the connector 3 has a retaining edge 22. The retaining edge 22 extends inward and has a ring structure. The inner ring of the retaining edge 22 has a through hole 23 that fits on the hose body 11. The inner diameter of the through hole 23 is smaller than the outer size of the connector 12.

[0033] When the connector 2 and the connector 3 are threaded together and clamp the connector 12 of the hose 1 to fix it, the insertion part 13 is inserted into the socket 31, the side wall of the insertion part 13 is close to the wall surface in the socket 31, the connector 12 of the hose 1 is located between the stop 22 and the limiting part 33, and the limiting part 33 can abut against the end of the connector 12, that is, the thickness of the insertion part 13 connected to the connector 12 is smaller than the thickness of the connector 12.

[0034] To facilitate the connection of the connector 3 to the vacuum cleaner main unit or nozzle, the connector 3 is provided with a connecting section 35 and a through hole 36. The inner diameter of the through hole 36 is less than or equal to the inner ring size of the limiting part 33. For example, a ring-shaped protrusion 37 may be provided on the inner ring side wall of the connecting section 35 or the limiting part 33.

[0035] To facilitate rotation and prevent slippage during threaded assembly and disassembly, the outer wall of connector 2 is textured with raised and recessed patterns 24.

[0036] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0037] The above provides a detailed description of the vacuum cleaner hose connector provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A vacuum cleaner hose connector, comprising a hose, a connector, and a fitting, wherein the hose has a hose body and a fitting located at one end of the hose body; Its features are, The outer diameter of the connector is larger than the outer diameter of the pipe body. The connector is sleeved on the pipe body and threadedly connected to the joint. The connector and the joint clamp the connector of the hose and fix it. The connector and / or the joint wrap around the connector of the hose. The connector is provided with a socket, and the end of the connector is provided with an insertion part, which is inserted into the socket.

2. The vacuum cleaner hose connector according to claim 1, characterized in that, The socket is a trapezoidal or triangular ring with a recessed design, and the insertion part is flared outwards in a trumpet shape and mates with the socket.

3. The vacuum cleaner hose connector according to claim 1 or 2, characterized in that, The connector is provided with a threaded connection section, and the insertion port is located on the inner ring of the threaded connection section and is set to open towards one end of the threaded connection section.

4. The vacuum cleaner hose connector according to claim 3, characterized in that, The connector is provided with a limiting part, which protrudes out and is spaced apart from the threaded connection section to form the insertion port.

5. The vacuum cleaner hose connector according to claim 4, characterized in that, The end face of the limiting part facing the side wall of the threaded connection section is an inclined surface, and the inclined surface forms an acute angle with the inner side wall of the threaded connection section.

6. The vacuum cleaner hose connector according to claim 3, characterized in that, The other end of the threaded connection section is connected to a connecting pipe, and the joint is provided with a through hole that connects the connecting pipe and the threaded connection section.

7. The vacuum cleaner hose connector according to claim 6, characterized in that, The inner diameter of the through hole is less than or equal to the inner ring size of the limiting part.

8. The vacuum cleaner hose connector according to claim 3, characterized in that, The connector is provided with a second threaded connection section that can be threadedly connected to the first threaded connection section. One end of the second threaded connection section is provided with a retaining edge, which is located at the opening orientation of the socket.

9. The vacuum cleaner hose connector according to claim 8, characterized in that, The retaining edge extends inward, and the inner ring of the retaining edge has a through hole that fits onto the tube body.

10. The vacuum cleaner hose connector according to claim 9, characterized in that, The inner diameter of the perforation is smaller than the outer dimension of the connector.

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