An axially telescopic pipe joint assembly and a telescopic hose

Abstract

The utility model discloses an axial telescopic pipe joint assembly and telescopic hose relates to pipe and pipe joint field, including two quick -plug joint, quick -plug joint includes socket end and screw end, socket end installs in socket end inside of one of quick -plug joint with the partial intercalation of the spray gun, the partial intercalation of the connecting piece is in the socket end inside of another quick -plug joint, this axial telescopic pipe joint assembly can be freely telescopic through the connecting pipe and cloth cover, and the adaptation different scene demand, limit block and sheath double limit make that the connecting pipe end portion fixed with riveting is limited, prevents sheath extrusion injury connecting pipe, cloth cover protection hose, prolongs the life.

Description

Technical Field

[0001] This utility model relates to pipe and pipe fitting technology, specifically to an axially expandable pipe fitting assembly and a telescopic hose. Background Technology

[0002] A telescopic hose is a flexible pipe with expandable and contractible properties. It is typically made of materials such as rubber, plastics (e.g., PVC, PU, ​​PP), or metals (e.g., stainless steel). Some high-end models use high-temperature resistant rubber or food-grade stainless steel to meet special requirements. Its core structure includes a spiral-shaped expandable tube body, a support ring, and connecting components. The main functions of a telescopic hose include:

[0003] Fluid and gas transport: Suitable for transporting liquids, gases, powders and granules, especially excelling in scenarios requiring frequent movement or repositioning.

[0004] Space adaptability: The telescopic feature adapts to different length requirements, saving space and facilitating storage and transportation.

[0005] Environmental resistance: It has the characteristics of high temperature resistance, low temperature resistance, corrosion resistance and wear resistance, and can work stably in extreme environments.

[0006] Vibration damping and compensation: Absorbing deformation caused by thermal expansion and contraction, vibration, or ground subsidence in piping systems to protect equipment safety.

[0007] Traditional hose and fitting assemblies typically have the following problems:

[0008] Ordinary flexible hoses have a fixed length, making it difficult to adapt to the space requirements of different usage scenarios;

[0009] Installation requires tools and the sealing depends on threaded fastening, making the process cumbersome.

[0010] Although some flexible hoses exist in the existing technology, their joint structures are complex and their durability is poor. When connecting the hose and the joint, they are tightened by squeezing, which causes the end of the connecting hose to be squeezed and stretched. The threaded end rotates and squeezes the connecting hose, causing the connecting hose to break. Utility Model Content

[0011] The purpose of this invention is to provide an axially expandable pipe fitting assembly and a telescopic hose to solve the problems of complex joint structure, poor durability, and the use of compression to fasten the connection between the pipe and the fitting, which causes the end of the connecting pipe to be compressed and extended, and the threaded end to rotate and compress the connecting pipe, resulting in damage to the connecting pipe.

[0012] To achieve the above objectives, this utility model provides the following technical solution: an axially expandable pipe fitting assembly, comprising two quick-connect fittings, each quick-connect fitting comprising a socket end and a threaded end, the threaded end being installed at the end of the socket end, and a plurality of limiting blocks being fixedly installed at the end of the threaded end;

[0013] The spray gun is partially inserted into the inside of the socket end of one of the quick-connect fittings;

[0014] A connector, part of which is inserted into the inside of the socket end of another quick-connect fitting.

[0015] Furthermore, the socket end includes a female head, one end of which is fixedly connected to one end of the threaded end, and a plurality of the limiting blocks are evenly distributed around the axis of the threaded end.

[0016] Furthermore, a sheath is threaded onto the outer side of the threaded end.

[0017] Furthermore, the spray gun includes:

[0018] The first male connector is inserted into the inside of one of the female connectors;

[0019] The gun body is fixedly installed at one end of the first male head, and the inner cavity of the gun body is provided with a water channel;

[0020] The nozzle is fixedly installed at the other end of the gun body and is connected to the water channel.

[0021] A push-button switch, which is rotatably mounted on one side of the gun body, is used to control the connection or disconnection of the waterway.

[0022] Furthermore, the connector includes:

[0023] The second male head is inserted into the inside of the other female head;

[0024] The adapter is threaded onto the inside of the second male connector.

[0025] A telescopic hose, comprising any of the above-described axially telescopic fitting assemblies, further comprising:

[0026] A connecting pipe, with its two ends respectively fitted onto the outside of two threaded ends, and the limiting block located on the outside of the connecting pipe;

[0027] A cloth sleeve, which is fitted over the outside of the connecting pipe;

[0028] The ends of the connecting pipe and the cloth sleeve are both fixed to the threaded end by riveting buckles.

[0029] Compared with the prior art, the present invention provides an axially telescopic pipe joint assembly and telescopic hose, in which the connecting pipe and the cloth sleeve can be freely extended and retracted to adapt to different scenario requirements;

[0030] The double limiting of the limiting block and the sheath limits the end of the connecting pipe fixed by the rivet buckle, preventing the sheath from squeezing and damaging the connecting pipe;

[0031] The cloth sleeve protects the hose, extending its service life. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0033] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0034] Figure 2 A partial structural schematic diagram provided for an embodiment of this utility model;

[0035] Figure 3 A partial structural cross-sectional view provided for an embodiment of this utility model;

[0036] Figure 4 This is a partial structural separation diagram provided for an embodiment of the present utility model;

[0037] Figure 5 A structural diagram of the spray gun provided for an embodiment of this utility model;

[0038] Figure 6 This is a structural separation diagram of the connector provided in an embodiment of the present utility model;

[0039] Figure 7 The weave pattern of the fabric cover provided for the embodiments of this utility model.

[0040] Explanation of reference numerals in the attached figures:

[0041] 1. Fabric cover; 11. Weft thread; 12. Warp thread; 2. Connecting tube; 3. Quick-connect fitting; 31. Female connector; 32. Threaded end; 33. Limiting block; 4. Protective sleeve; 5. Riveting buckle; 6. Spray gun; 61. Gun body; 62. Press switch; 63. Nozzle; 64. First male connector; 7. Connecting piece; 71. Second male connector; 72. Adapter. Detailed Implementation

[0042] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0043] Example 1:

[0044] Please see Figures 1-6An axially expandable pipe fitting assembly, comprising:

[0045] Two quick-connectors 3, each quick-connector 3 includes a socket end and a threaded end 32, the threaded end 32 is installed at the end of the socket end, and a number of limiting blocks 33 are fixedly installed at the end of the threaded end 32.

[0046] The spray gun 6 is partially inserted into the inside of the socket end of one of the quick-connect connectors 3;

[0047] The connector 7 is partially inserted into the inner side of the socket end of another quick-connect connector 3.

[0048] The socket end includes a female head 31, one end of which is fixedly connected to one end of the threaded end 32, and a number of limiting blocks 33 are evenly distributed around the axis of the threaded end 32.

[0049] The outer thread of threaded end 32 is fitted with a sheath 4.

[0050] Spray gun 6 includes:

[0051] The first male head 64 is inserted into the inside of one of the female heads 31;

[0052] The gun body 61 is fixedly installed at one end of the first male head 64, and the inner cavity of the gun body 61 is provided with a water channel;

[0053] The nozzle 63 is fixedly installed at the other end of the gun body 61 and is connected to the water channel.

[0054] The push switch 62 is rotatably mounted on one side of the gun body 61. The push switch 62 is used to control the connection or disconnection of the waterway.

[0055] Connector 7 includes:

[0056] The second male head 71 is inserted into the inside of another female head 31;

[0057] The adapter 72 is threaded to the inside of the second male connector 71.

[0058] The spray gun 6 is used to control the flow of water in the connecting pipe 2 or to pause the flow. Pressing the press switch 62 opens the water channel in the gun body 61, allowing water to flow out from the nozzle 63. The first male head 64 is inserted into the first female head 31 and locked by the self-locking mechanism of the female head 31.

[0059] The second male connector 71 is used to connect to another female connector 31. The second male connector 71 is locked by the self-locking mechanism of the female connector 31. The inner side of the other end of the second male connector 71 is also threadedly connected to the adapter 72, which is used to connect to a faucet or other water supply outlet.

[0060] Example 2:

[0061] Please see Figures 1-3and Figure 7 This embodiment provides a technical solution based on Embodiment 1: a telescopic hose, including the aforementioned axially telescopic pipe fitting assembly, further comprising:

[0062] The connecting pipe 2 has its two ends respectively fitted onto the outside of the two threaded ends 32, and the limiting block 33 is located outside the connecting pipe 2;

[0063] Cloth sleeve 1, which is fitted onto the outside of connecting pipe 2;

[0064] The ends of the connecting pipe 2 and the cloth sleeve 1 are both pressed and fixed to the threaded end 32 by the rivet buckle 5.

[0065] The connecting tube 2 is an elastic rubber tube that can be stretched along its own axis. The fabric sleeve 1 includes elastic weft yarns 11 and warp yarns 12 interwoven perpendicularly to the weft yarns 11. The weft yarns 11 and warp yarns 12 interweave to form the basic skeleton of the fabric sleeve 1. The weft yarns 11 extend along the length direction of the fabric sleeve 1 and are evenly arranged, while the warp yarns 12 extend along the width direction of the fabric sleeve 1 and are evenly arranged. The arrangement density of the warp yarns 12 is greater than that of the weft yarns 11. The fabric sleeve 1 can stretch along with the connecting tube 2 and provide protection for the connecting tube 2. When flushing, the connecting pipe 2 and the cloth sleeve 1 can expand and contract by 2-2.5 times. The rivet buckle 5 is a ring-shaped fastener made of aluminum. The connecting pipe 2 and the cloth sleeve 1 are pressed and fixed to the end of the female head 31 by the rivet buckle 5. The limiting blocks 33 are evenly distributed to restrict the end of the connected pipe 2 that is squeezed and extended between the end of the female head 31 and the limiting blocks 33, so as to prevent the squeezed end from extending to the outside of the threaded end 32 when the rivet buckle 5 is pressed on the connecting pipe 2 and the cloth sleeve 1, causing the protective sleeve 4 to be squeezed and damaged by the threaded end 32 on the connecting pipe 2.

[0066] Working principle: When in use, the user first locks the first male head 64 of the spray gun 6 and the second male head 71 of the connector 7 with the female head 31 of the quick-connect connector 3 through the self-locking mechanism to achieve quick insertion and sealing. The threaded end 32 is connected to the outer threaded sleeve 4 for further fixing or protecting the connection part. The spray gun 6 controls the opening and closing of the water channel inside the gun body 61 by pressing the switch 62, and water flows out from the nozzle 63. The adapter 72 of the connector 7 is used to connect to the water supply port such as a faucet to form a fluid input channel.

[0067] The connecting tube 2 is an elastic rubber tube that can be stretched axially and serves as the core channel for fluid transmission. The cloth sleeve 1 is fitted on the outside of the connecting tube 2 and is composed of interwoven weft 11 and warp 12. The high-density design of the warp 12 provides longitudinal support, while the weft 11 allows for lateral extension, enabling the cloth sleeve 1 to expand and contract with the connecting tube 2 and form protection against it, thus preventing external scratches or squeezing damage.

[0068] The ends of the connecting tube 2 and the cloth sleeve 1 are pressed and fixed to the outside of the threaded end 32 by the rivet buckle 5. The limiting blocks 33 at the end of the threaded end 32 are evenly distributed, which can prevent the end of the connecting tube 2 from extending outward when the rivet buckle 5 is pressed, and prevent the sheath 4 from squeezing and damaging the connecting tube 2 when the threaded end 32 is tightened, thus ensuring the reliability of the fixation and the safety of the structure.

[0069] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0070] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. "A plurality of" means two or more, unless otherwise explicitly specified.

[0071] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0072] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0073] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0074] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0075] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An axially expandable pipe fitting assembly, characterized in that, include: Two quick-connectors (3), each quick-connector (3) includes a socket end and a threaded end (32), the threaded end (32) is installed at the end of the socket end, and a plurality of limiting blocks (33) are fixedly installed at the end of the threaded end (32); The spray gun (6) is partially inserted into the inside of the socket end of one of the quick-connect fittings (3); The connector (7) is partially inserted into the inner side of the socket end of another quick connector (3).

2. The axially expandable pipe fitting assembly according to claim 1, characterized in that, The socket end includes a female head (31), one end of which is fixedly connected to one end of the threaded end (32), and a plurality of the limiting blocks (33) are evenly distributed with the axis of the threaded end (32) as the center.

3. The axially expandable pipe fitting assembly according to claim 1, characterized in that, The outer side of the threaded end (32) is threaded with a sheath (4).

4. The axially expandable pipe fitting assembly according to claim 1, characterized in that, The spray gun (6) includes: The first male head (64) is inserted into the inside of one of the female heads (31); The gun body (61) is fixedly installed at one end of the first male head (64), and the inner cavity of the gun body (61) is provided with a water channel; The nozzle (63) is fixedly installed at the other end of the gun body (61) and is connected to the water channel; A push-button switch (62) is rotatably mounted on one side of the gun body (61). The push-button switch (62) is used to control the connection or disconnection of the waterway.

5. The axially expandable pipe fitting assembly according to claim 1, characterized in that, The connector (7) includes: The second male head (71) is inserted into the inside of another female head (31); The adapter (72) is threaded to the inside of the second male connector (71).

6. A telescopic flexible hose, characterized in that, The axially expandable pipe fitting assembly according to any one of claims 1-5 further includes: The connecting pipe (2) has its two ends respectively fitted on the outside of the two threaded ends (32), and the limiting block (33) is located on the outside of the connecting pipe (2); A cloth sleeve (1) is fitted over the outside of the connecting pipe (2); The ends of the connecting pipe (2) and the cloth sleeve (1) are both pressed and fixed to the threaded end (32) by the rivet buckle (5).

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