Pipeline connecting assembly

Abstract

The utility model relates to a pipeline connecting assembly which comprises a pipeline connector, a pipe assembly and a fastening device, the pipeline connector is made of a flexible material and comprises a pipe connecting end, a matched pipe connecting end and a pipeline connector containing cavity, one end of the pipe assembly is connected with the pipe connecting end, and the end, connected with the pipe connecting end, of the pipe assembly is provided with a table-shaped extending structure; the bench-shaped extension structure extends into the inner containing cavity of the pipeline connector, and the fastening device is installed on the outer side of the matching pipe connecting end of the pipeline connector and used for fastening the matching pipe connecting end and a matching pipeline together when the matching pipe connecting end is connected with the matching pipeline. When the matching pipe connecting end is connected with the matching pipeline, the matching pipeline extends into the pipeline connector containing cavity, a part of the table-shaped extending structure can extend into the matching pipeline, and therefore a fluid channel is formed between the pipe assembly and the matching pipeline. The pipeline connecting assembly can be quickly, conveniently and fixedly connected with the dust collector pipe.

Description

Technical Field

[0001] This application relates to a pipe connection assembly. Background Art

[0002] Generally, a vacuum cleaner is used to clean the inner cavity of an electrical appliance (such as a dryer). During cleaning, a suitable cleaning bellows needs to be fitted to the vacuum cleaner pipe to facilitate reaching into the inner cavity of the electrical appliance for cleaning. Summary of the Utility Model

[0003] Through careful observation by the inventor, in order to conveniently and quickly connect the vacuum cleaner pipe and the bellows, a flexible pipe joint pre - connected to the bellows can be used to connect with the vacuum cleaner pipe. A flexible fastening device is used to fix the pipe joint on the vacuum cleaner pipe, thereby realizing a firm connection between the vacuum cleaner pipe and the bellows.

[0004] Therefore, according to one aspect of the present application, there is provided a pipe connection assembly, which is characterized by comprising: a pipe joint, a pipe assembly, and a fastening device. The pipe joint is made of a flexible material and includes a pipe connection end, a mating pipe connection end, and a pipe joint inner cavity. One end of the pipe assembly is connected to the pipe connection end, and the end of the pipe assembly connected to the pipe connection end is provided with a frustum - shaped extension structure. The frustum - shaped extension structure extends into the pipe joint inner cavity. The fastening device is installed outside the mating pipe connection end of the pipe joint and is used to fasten the mating pipe connection end and the mating pipe together when the mating pipe connection end is connected to the mating pipe; wherein, when the mating pipe connection end is connected to the mating pipe, the mating pipe extends into the pipe joint inner cavity, and a part of the frustum - shaped extension structure can extend into the mating pipe, so as to form a fluid channel between the pipe assembly and the mating pipe.

[0005] According to one aspect of the present application, it is characterized in that: the frustum - shaped extension structure is integrally formed with the pipe assembly; or the frustum - shaped extension structure is detachably connected to the pipe assembly.

[0006] According to one aspect of the present application, it is characterized in that: the frustum - shaped extension structure is a reduced - diameter pipe portion, the reduced - diameter pipe portion extends from the pipe assembly towards the pipe joint direction, and the cross - sectional area of the reduced - diameter pipe portion gradually decreases along the extension direction, so that the reduced - diameter pipe portion is substantially in the shape of a frustum of a cone.

[0007] According to one aspect of the present application, it is characterized in that: the frustum-shaped extension structure is an extension fork portion, and the extension fork portion includes a first extension leg and a second extension leg that are opposite to each other. The first extension leg and the second extension leg extend from the pipe assembly towards the pipe joint, and the width in the direction perpendicular to the extension direction gradually decreases.

[0008] According to one aspect of the present application, it is characterized in that: the fastening device is a cable tie, and the cable tie includes a tension adjustment device for adjusting the tightening degree of the cable tie on the pipe joint.

[0009] According to one aspect of the present application, it is characterized in that: when the cable tie is not tightened, there is a gap between the inner cavity of the pipe joint and the mating pipe.

[0010] According to one aspect of the present application, it is characterized in that: when the cable tie is tightened, a part of the material at the connection end of the mating pipe is folded under the tightening action of the cable tie, so that the inner diameter of the inner cavity of the pipe joint becomes smaller, thereby tightly connecting the connection end of the mating pipe and the mating pipe together.

[0011] According to one aspect of the present application, it is characterized in that: a cable tie connection lug is provided on the outer wall of the connection end of the mating pipe for installing the cable tie in the circumferential direction of the pipe joint.

[0012] According to one aspect of the present application, it is characterized in that: the pipe connection end of the pipe joint is sleeved outside the pipe assembly so that the frustum-shaped extension structure can extend into the inner cavity of the pipe joint; and the outer diameter of the connection end of the mating pipe is greater than the outer diameter of the pipe connection end.

[0013] According to one aspect of the present application, it further includes: a transition portion, and the transition portion is provided between the pipe connection end and the connection end of the mating pipe.

[0014] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Brief Description of the Drawings

[0015] Figure 1A is a schematic diagram of the pipe connection assembly of the present application in the pre-connection state;

[0016] Figure 1B is an enlarged view of part A of the pipe connection assembly of the present application in the pre-connection state; [[ID=зо]]

[0017] Figure 1C is Figure 1B a schematic diagram of the pipe connection assembly shown in the tightly connected state;

[0018] Figure 1D A perspective view of the pipe connection assembly of the present application;

[0019] Figure 2A This is a schematic diagram of a first embodiment of a pipe connection assembly of the present application;

[0020] Figure 2B This is a schematic diagram of a second embodiment of the pipe connection assembly of the present application;

[0021] Figure 3A An exploded view of a first embodiment of a pipe connection assembly of the present application;

[0022] Figure 3B An exploded view of a second embodiment of the pipe connection assembly of the present application;

[0023] Figure 4A is a three-dimensional diagram of a pipe joint;

[0024] Figure 4B It is the right side view of the pipe joint;

[0025] Figure 4C It is a top view of the pipe joint;

[0026] Figure 5A for Figure 1B The shown schematic diagram of a first embodiment of a pipe connection assembly concealing a pipe joint and a fastening device;

[0027] Figure 5B for Figure 5A Cross-sectional view BB;

[0028] Figure 6A for Figure 1B The schematic diagram of the second embodiment of the pipe connection assembly showing the concealed pipe joint and the fastening device;

[0029] Figure 6B for Figure 6A Sectional view CC. DETAILED DESCRIPTION

[0030] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of this application, but the present application is not limited thereto. It should be understood that although directional terms such as "upper," "lower," "left," "right," "front," and "rear" are used in this application to describe the orientation of various example structural parts and elements of the present application, these terms are used herein for convenience of description only and are determined based on the example orientations shown in the accompanying drawings. Because the embodiments of the present application can be arranged in different orientations, these directional terms are only for illustration and should not be considered as limiting.

[0031] The term "comprising" and its derivatives are meant to include rather than limit. Unless otherwise specified or limited, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, they can be mechanical connections, electrical connections, or communication connections, and can also be the internal connection between two components. They can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances. Where possible, the same or similar reference numerals used in this application refer to the same components.

[0032] Figures 1A - 1D The specific structure of the pipeline connection component of the present application is shown. Among them, Figure 1A is a schematic diagram of the pipeline connection component of the present application in the pre-connection state; Figure 1B is an enlarged view of part A of the pipeline connection component of the present application in the pre-connection state; Figure 1C is Figure 1B a schematic diagram of the pipeline connection component shown in the tightly connected state; Figure 1D is a perspective view of the pipeline connection component of the present application.

[0033] As Figures 1A - 1D shown, the pipeline connection component 100 is used to adaptively connect with the vacuum cleaner tube 110, so as to serve as an extension of the vacuum cleaner tube 110 and can extend into the inner cavity of an electrical device (such as a dryer) for cleaning. The pipeline connection component 100 includes a pipeline joint 102, a fastening device 104, and a bellows assembly 106. The pipeline joint 102 is made of a flexible material, such as silica gel, rubber, or TPR. The bellows assembly 106 is easily bent through the corrugated structure on the tube wall, so as to facilitate extending into the dryer for cleaning. One end of the pipeline joint 102 is sleeved on the outer side of the bellows assembly 106 in a transition fit or interference fit manner, and is detachably connected to the bellows assembly 106. The pipeline joint 102 has a pipeline joint inner cavity 103, and the inner diameter of the pipeline joint inner cavity 103 is larger than the outer diameter of the vacuum cleaner tube 110, so that the vacuum cleaner tube 110 can be inserted into the pipeline joint inner cavity 103 of the pipeline joint 102 from the other end of the pipeline joint 102 relative to the bellows assembly 106.

[0034] As Figures 1B - 1CAs shown, the fastening device 104 is a flexible bundling mechanism, such as an adjustable-tightness cable tie or a Velcro cable tie. In the embodiments of the present application, a cable tie is used as the fastening device 104. A plurality (for example, two) of cable tie connection lugs 105 are provided in the circumferential direction on the outer wall of the pipe joint 102. The cable tie connection lugs 105 and the outer wall of the pipe joint 102 form a cable tie connection hole 107 for allowing the cable tie 104 to pass through, so that the cable tie 104 is bundled outside the pipe joint 102 in the circumferential direction. An elastic tightening device 122 is provided on the cable tie 104, which can adjust the tightness of the bundling of the cable tie 104. By adjusting the elastic tightening device 122, the tightening degree of the cable tie 104 relative to the pipe joint 102 can be changed, so that the cable tie 104 has a tightened state and an untightened state relative to the pipe joint 102. In the untightened state of the cable tie 104, the pipe joint 102 is in the Figure 1B pre-connection state shown, and when the vacuum cleaner tube 110 is in the inserted state, there is a certain gap 124 between the inner wall of the pipe joint cavity 103 of the pipe joint 102 and the vacuum cleaner tube 110, so as to facilitate the easy insertion of the vacuum cleaner tube 110 into the pipe joint cavity 103 of the pipe joint 102. In the tightened state of the cable tie 104, the pipe joint 102 is in the Figure 1C tightened connection state shown. At this time, a part of the material 132 of the flexible pipe joint 102 is folded in the circumferential direction under the tension of the cable tie 104, so that the inner diameter of the pipe joint cavity 103 of the pipe joint 102 becomes smaller, so that the pipe joint 102 can closely adhere to the outer wall of the vacuum cleaner tube 110, and by applying a tension force to the pipe joint 102 through the cable tie 104, the pipe joint 102 and the vacuum cleaner tube 110 can be tightly connected together by friction, so as to realize the connection between the corrugated pipe assembly 106 and the vacuum cleaner tube 110.

[0035] Figures 2A - 2B and Figures 3A - 3B show the specific structure of the pipe connection assembly of the present application. Among them, Figure 2A is a schematic diagram of the first embodiment of the pipe connection assembly of the present application; Figure 2B is a schematic diagram of the second embodiment of the pipe connection assembly of the present application; Figure 3A is an exploded view of the first embodiment of the pipe connection assembly of the present application; Figure 3B is an exploded view of the second embodiment of the pipe connection assembly of the present application. The difference between the first embodiment and the second embodiment of the pipe connection assembly lies in the different structures of the corrugated pipe assembly 106, and the same structures will not be described in detail.

[0036] As Figures 2A - 2B and Figures 3A - 3BAs shown, the pipe joint 102 includes a corrugated pipe connection end 302 and a vacuum cleaner pipe connection end 304. The corrugated pipe connection end 302 is sleeved outside the corrugated pipe assembly 106. One end of the corrugated pipe assembly 106 extending into the corrugated pipe connection end 302 includes a frustum-shaped extension structure. This frustum-shaped extension structure can be provided at the end of the corrugated pipe assembly 106 in an integrally formed manner, or can be connected to the end of the corrugated pipe assembly 106 in a detachable manner.

[0037] As Figure 2A and Figure 3A shown, in the first embodiment of the pipe connection assembly 100, the frustum-shaped structure can be a reduced-diameter pipe portion 108 provided at the end of the corrugated pipe assembly 106. The reduced-diameter pipe portion 108 extends from the corrugated pipe assembly 106 towards the pipe joint 102, and the cross-sectional area of the reduced-diameter pipe portion 108 perpendicular to the extension direction gradually decreases along the extension direction, so that the reduced-diameter pipe portion 108 is generally in the shape of a frustum. The reduced-diameter pipe portion 108 can be integrally formed with the corrugated pipe assembly 106, or can be connected to the end of the corrugated pipe assembly 106 by interference fit or transitional fit. In the connected state, the reduced-diameter pipe portion 108 is inserted into the inner cavity 103 of the pipe joint of the pipe joint 102, and a part of the end of the reduced-diameter pipe portion 108 can extend into the vacuum cleaner pipe 110 during connection (see Figures 5A - 5B ).

[0038] As Figure 2B and Figure 3B shown, in the second embodiment of the pipe connection assembly 100, the frustum-shaped structure can be an extension fork portion 109 provided at the end of the corrugated pipe assembly 106. The extension fork portion 109 has a corrugated pipe fastening end 312, a pipe joint fastening end 314, and a fork 316. The corrugated pipe fastening end 312 can be connected to the end of the corrugated pipe assembly 106 by interference fit or transitional fit. The pipe joint fastening end 314 can be connected to the corrugated pipe connection end 302 of the pipe joint 102 by interference fit or transitional fit. The fork 316 is provided at one end of the extension fork portion 109 facing the pipe joint 102. It can be inserted into the inner cavity 103 of the pipe joint 102 when the joint fastening end 314 and the corrugated pipe connection end 302 are fixedly connected together, and a part of the end of the fork 316 can extend into the vacuum cleaner pipe 110 during connection (see Figures 6A - 6B)。The fork 316 has two extension legs 321, 322 that extend axially along the bellows from the joint fastening end 314 and are arranged opposite to each other, namely the upper extension leg 321 and the lower extension leg 322. The upper extension leg 321 and the lower extension leg 322 extend axially from the upper and lower sides of the joint fastening end 314 respectively, and the widths of the two extension legs 321, 322 gradually decrease in the direction perpendicular to the extension direction. There is an extension fork gap 332 between the upper extension leg 321 and the lower extension leg 322. The extension fork gap 332 is in fluid communication with the content cavity of the extension fork 109 and is in fluid communication with the pipe content cavity of the bellows assembly 106 when connected to the bellows assembly 106. Since the upper extension leg 321 and the lower extension leg 322 of the fork 316 have widths that gradually change within a certain range, the fork 316 can be adapted to vacuum cleaner hoses 110 of various caliber sizes, especially vacuum cleaner hoses 110 with a smaller caliber.

[0039] Figures 4A - 4C The specific structure of the pipe joint 102 is shown. Among them, Figure 4A is a perspective view of the pipe joint; Figure 4B is a right view of the pipe joint; Figure 4C is a top view of the pipe joint.

[0040] As Figures 4A - 4C shown, the pipe joint 102 includes a bellows connection end 302, a vacuum cleaner hose connection end 304, and a pipe joint transition part 402 provided between the bellows connection end 302 and the vacuum cleaner hose connection end 304. The tie strap connection lug 105 is provided on the outer wall of the vacuum cleaner hose connection end 304 of the pipe joint 102. In the embodiment of the present application, since the outer diameter of the vacuum cleaner hose connection end 304 is larger than the outer diameter of the bellows connection end 302, the axial cross-section of the pipe joint transition part 402 gradually decreases from the vacuum cleaner hose connection end 304 to the bellows connection end 302. The vacuum cleaner hose connection end 304 and the pipe joint transition part 402 together form the pipe joint content cavity 103. In the tightly connected state, the vacuum cleaner hose 110 extends into the pipe joint 102 from the vacuum cleaner hose connection end 304 and extends to the inside of the pipe joint transition part 402. The tie strap 104 can apply a tension force to the vacuum cleaner hose connection end 304 of the pipe joint 102, so as to tightly connect the vacuum cleaner hose connection end 304 and the vacuum cleaner hose 110 together through friction.

[0041] Figures 5A - 5B In the first embodiment of the pipe connection assembly, it is a schematic diagram of the cooperation between the bellows assembly 106 and the vacuum cleaner hose 110. Among them, Figure 5A is Figure 1B a schematic diagram of the first embodiment of the pipe connection assembly hiding the pipe joint and the fastening device shown; Figure 5B is Figure 5ACross-sectional view B-B.

[0042] As Figures 5A - 5B shown, in the first embodiment of the pipe connection assembly 100, in the tightly connected state of the pipe connection assembly 100, a part of the distal end of the necked tube portion 108 of the bellows assembly 106 extends into the pipe cavity 502 of the vacuum cleaner tube 110, thereby forming a relatively rigid connection between the bellows assembly 106 and the vacuum cleaner tube 110, and forming a continuous fluid passage F between the bellows pipe cavity 504 of the bellows assembly 106 and the pipe cavity 502 of the vacuum cleaner tube 110. Even when the vacuum cleaner tube 110 is bent or offset to a certain extent relative to the bellows assembly 106, the fluid passage F will not be blocked. Therefore, even when the pipe connection assembly 100 is in any bent state, foreign objects such as hair sucked in are not easily blocked at the connection between the bellows assembly 106 and the vacuum cleaner tube 110.

[0043] Figures 6A - 6B FIG. is a schematic diagram of the cooperation between the bellows assembly 106 and the vacuum cleaner tube 110 in the second embodiment of the pipe connection assembly. Among them, Figure 6A is Figure 1B a schematic diagram of the second embodiment of the pipe connection assembly hiding the pipe joint and the fastening device shown; Figure 6B is Figure 6A Cross-sectional view C-C.

[0044] As Figures 6A - 6B shown, in the second embodiment of the pipe connection assembly, in the tightly connected state of the pipe connection assembly 100, a part of the distal ends of the two extending legs 321, 322 of the extending fork portion 109 provided at the end of the bellows assembly 106 extends into the pipe cavity 502 of the vacuum cleaner tube 110, thereby forming a relatively rigid connection between the bellows assembly 106 and the vacuum cleaner tube 110, and forming a continuous fluid passage F between the bellows pipe cavity 504 of the bellows assembly 106 and the pipe cavity 502 of the vacuum cleaner tube 110. Since the cross-sectional dimension of the extending legs 321, 322 perpendicular to the extending direction can be reduced to a smaller dimension relative to the bellows assembly 106, the extending fork portion 109 can extend into the vacuum cleaner tube 110 with a smaller diameter, so that the pipe connection assembly 100 can be adapted to vacuum cleaner tubes 110 with a wider size range.

[0045] The purpose of this application is to at least partially solve the technical problems mentioned herein. The pipe connection assembly of this application can at least achieve the following beneficial technical effects:

[0046] First, considering that there are various specifications for vacuum cleaner hoses and the pipe diameters of different specifications are also different, the pipe connection assembly of the present application has a flexible pipe joint, so it is convenient to connect various vacuum cleaner hoses of different specifications. Specifically, by setting the inner diameter of the vacuum cleaner hose connection end of the flexible pipe joint to be larger than the outer diameter of the vacuum cleaner hose, it is convenient for the pipe joint to be easily sleeved outside the vacuum cleaner hose; then, by tightening the flexible pipe joint with an adjustable tightening device (such as a cable tie) pre-installed on the pipe joint, the pipe joint can be firmly connected outside the vacuum cleaner hose, thereby realizing a quick and convenient fixed connection between the pipe connection assembly and the vacuum cleaner hose.

[0047] Second, in two embodiments of the pipe connection assembly, a part of the end of the bellows assembly (such as the reduced diameter pipe portion 108 or the extended fork portion 109) extends into the pipe cavity of the vacuum cleaner hose, so that a relatively rigid connection is formed between the bellows assembly and the vacuum cleaner hose, ensuring that a continuous fluid passage is formed between the bellows pipe cavity of the bellows assembly and the pipe cavity of the vacuum cleaner hose, and preventing the flexible pipe walls of the flexible pipe joint from being sucked together (adhered together) under the negative pressure generated during the operation of the vacuum cleaner, thereby blocking the fluid passage and affecting the cleaning operation.

[0048] Although the present application has been described in connection with examples of the embodiments outlined above, various alternative solutions, modifications, variations, improvements, and / or substantially equivalent solutions, whether known or now or soon foreseeable, may be obvious to those of at least ordinary skill in the art. Additionally, the technical effects and / or technical problems described in the present application are exemplary rather than restrictive; so the disclosures in the present application may be used to solve other technical problems and have other technical effects and / or may solve other technical problems. Therefore, the examples of the embodiments of the present application as stated above are intended to be illustrative rather than restrictive. Various changes can be made without departing from the spirit or scope of the present application. Therefore, the present application is intended to cover all known or earlier developed alternative solutions, modifications, variations, improvements, and / or substantially equivalent solutions.

Claims

1. A pipe connection component (100), characterized in that Comprising: A pipe joint (102), which is made of a flexible material and includes a pipe connection end (302), a mating pipe connection end (304), and a pipe joint inner cavity (103); A pipe assembly (106), one end of which is connected to the pipe connection end (302), and the end of the pipe assembly (106) connected to the pipe connection end (302) is provided with a frustum-shaped extension structure (108, 109), and the frustum-shaped extension structure (108, 109) extends into the pipe joint inner cavity (103); and A fastening device (104), which is installed outside the mating pipe connection end (304) of the pipe joint (102) and is used to fasten the mating pipe connection end (304) and a mating pipe (110) together when the mating pipe connection end (304) is connected to the mating pipe (110); Wherein, when the mating pipe connection end (304) is connected to the mating pipe (110), the mating pipe (110) extends into the pipe joint inner cavity (103), and a part of the frustum-shaped extension structure (108, 109) can extend into the mating pipe (110), so as to form a fluid passage (F) between the pipe assembly (106) and the mating pipe (110).

2. The pipe connection assembly according to claim 1, characterized in that: The frustum-shaped extension structure (108, 109) is integrally formed with the pipe assembly (106); or The frustum-shaped extension structure (108, 109) is detachably connected to the pipe assembly (106).

3. The pipe connection assembly according to claim 2, characterized in that: The frustum-shaped extension structure (108, 109) is a reduced-diameter pipe portion (108), and the reduced-diameter pipe portion (108) extends from the pipe assembly (106) towards the pipe joint (102), and the cross-sectional area of the reduced-diameter pipe portion (108) gradually decreases along the extending direction, so that the reduced-diameter pipe portion (108) is substantially in the shape of a frustum of a cone.

4. The pipe connection assembly according to claim 2, characterized in that: The frustum-shaped extension structure (108, 109) is an extension fork portion (109), and the extension fork portion (109) includes a first extension leg (321) and a second extension leg (322) opposite to each other. The first extension leg (321) and the second extension leg (322) extend from the pipe assembly (106) towards the pipe joint (102) and the width in the direction perpendicular to the extending direction gradually decreases.

5. The pipe connection assembly according to claim 1, characterized in that: The fastening device (104) is a cable tie, and the cable tie includes a tension adjustment device (122) for adjusting the tightening degree of the cable tie on the pipe joint (102).

6. The pipe connection assembly according to claim 5, characterized in that: When the cable tie is not tightened, there is a gap (124) between the inner cavity (103) of the pipe joint and the mating pipe (110).

7. The pipe connection assembly according to claim 5, wherein: When the cable tie is tightened, a part of the material of the mating pipe connection end (304) is folded under the tightening action of the cable tie, so that the inner diameter of the inner cavity (103) of the pipe joint becomes smaller, thereby tightly connecting the mating pipe connection end (304) and the mating pipe (110) together.

8. The pipe connection assembly according to claim 5, wherein: The outer wall of the mating pipe connection end (304) is provided with a cable tie connection lug (105) for mounting the cable tie circumferentially on the pipe joint (102).

9. The pipe connection assembly according to claim 1, wherein: The pipe connection end (302) of the pipe joint (102) is sleeved outside the pipe assembly (106) so that the tapered extension structures (108, 109) can extend into the inner cavity (103) of the pipe joint; and The outer diameter of the mating pipe connection end (304) is larger than the outer diameter of the pipe connection end (302).

10. The pipe connection component according to claim 1, characterized in that Further comprising: A transition portion (402), the transition portion (402) being provided between the pipe connection end (302) and the mating pipe connection end (304).

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