Direct insertion type water nozzle water outlet pipe connecting structure

Abstract

The utility model discloses a direct insertion type water nozzle water outlet pipe connecting structure which comprises a valve body and a water outlet pipe, a water through hole is formed in the valve body, a clamping sleeve which is sleeved in a limiting mode is additionally arranged outside the water outlet pipe, the water outlet pipe and the clamping sleeve are jointly inserted into the water through hole in a sealing mode, and meanwhile an anti-disengagement structure is arranged between the clamping sleeve and the water through hole. The water outlet pipe is limited to be separated from the water through hole through the anti-falling structure; therefore, compared with a traditional nut fixing or screw fastening structure, the structure for sealing insertion connection and disengagement prevention through the clamping sleeve has fewer parts and further has the advantages of being convenient and fast to assemble, high in efficiency, reliable in connecting structure and the like, the production cost of a factory is greatly reduced, and the attractiveness of the appearance cannot be affected.

Description

Technical Field

[0001] The utility model relates to a water outlet pipe connection structure of a faucet, in particular to a straight-insert water outlet pipe connection structure of a faucet. Background Art

[0002] Faucets are commonly used plumbing and sanitary products in daily life. During the production and assembly process in the factory, the connection between the water outlet pipe and the valve body of the faucet is relatively frequent. The water outlet pipe of the traditional faucet is fixed by a sealing plug-in with a nut, or the water outlet pipe is fixed by tightening the screws on the valve body. Although it has a good fixing effect, the structure is relatively complex, and the assembly process is cumbersome, time-consuming, and inefficient, which easily increases the production cost of the factory. In particular, the fastening with nuts or screws also greatly affects the appearance of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a straight-insert faucet outlet pipe connection structure which is convenient to assemble, highly efficient, has a reliable connection structure, does not affect the appearance and reduces factory production costs.

[0004] The technical problem of the utility model is achieved through the following technical solutions:

[0005] A straight-plug faucet water outlet pipe connection structure includes a valve body and a water outlet pipe. The valve body is provided with a water hole. A limiting sleeve is provided on the outside of the water outlet pipe. The water outlet pipe and the sleeve are sealed and inserted into the water hole. A stop structure is provided between the sleeve and the water hole, and the stop structure limits the water outlet pipe from being separated from the water hole.

[0006] The inner circumference of the ferrule is provided with a circumferential limiting protrusion, and the outer circumference of the water outlet pipe is correspondingly provided with a circumferential limiting groove. The ferrule is sleeved outside the water outlet pipe, and the limiting protrusion is fitted in the limiting groove to form a limit.

[0007] The ferrule is a cylindrical sleeve with a side opening and a C-shaped cross section.

[0008] The outer diameter of the ferrule is larger than that of the water hole, and the outlet pipe and the ferrule are sealed and plugged into the water hole. The ferrule is squeezed and elastically reduces its outer diameter through the side opening to enter the water hole.

[0009] The anti-slip structure is provided with a circumferential anti-slip groove on the inner circumferential surface of the water hole, and a circumferential anti-slip barb is provided on the outer circumferential surface of the ferrule. The ferrule is fitted in the anti-slip groove through the anti-slip barb to form an anti-slip structure, thereby simultaneously restricting the water outlet pipe from detaching from the water hole.

[0010] The anti-slip groove is a rectangular groove, and the anti-slip barb contacts the upper groove wall of the anti-slip groove through the hook surface at the top to form anti-slip.

[0011] The outer circumferential surface of the anti-slip barb is configured as a conical surface with a larger upper portion and a smaller lower portion.

[0012] The top port of the water hole is configured as a tapered port that is larger at the top and smaller at the bottom.

[0013] A double-channel O-ring for sealing connection is provided between the water outlet pipe and the water through hole.

[0014] The outer circumferential surface of the water outlet pipe is provided with a circumferentially surrounding double-channel mounting groove, and the double-channel O-rings are respectively arranged in the double-channel mounting groove.

[0015] Compared with the prior art, the present invention mainly adds a limiting sleeve outside the water outlet pipe, and seals the water outlet pipe together with the sleeve in the water hole, and at the same time provides a stop structure between the sleeve and the water hole, thereby limiting the water outlet pipe from being separated from the water hole through the stop structure; therefore, this structure using the sleeve for sealing insertion and stop has fewer parts than traditional nut fixing or screw fastening, and also has the advantages of easy assembly, high efficiency, and reliable connection structure, thereby greatly reducing the factory's production costs and will not affect the aesthetics of the appearance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic cross-sectional structural diagram of the present utility model.

[0017] Figure 2 A cross-sectional view of the valve body.

[0018] Figure 3 This is a cross-sectional view of the outlet pipe.

[0019] Figure 4 It is a structural diagram of the ferrule. DETAILED DESCRIPTION

[0020] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0021] like Figures 1 to 4 As shown, 1. valve body, 11. water hole, 12. cone mouth, 13. anti-slip groove, 2. outlet pipe, 21. limit groove, 22. double-channel installation groove, 3. ferrule, 31. limit convex, 32. anti-slip hook, 321. hook surface, 322. cone surface, 33. side opening, 4. double-channel O-ring.

[0022] A straight-in water faucet outlet pipe connection structure, such as Figure 1 As shown, it includes a valve body 1 and a water outlet pipe 2. An axially penetrating water hole 11 is provided in the valve body 1, and the water hole is a smooth cylindrical hole.

[0023] The outlet pipe 2 is provided with a limiting sleeve 3 on the outside. Specifically, a circumferential limiting protrusion 31 is provided on the inner circumferential surface of the sleeve 3, and a circumferential limiting groove 21 is provided on the outer circumferential surface of the outlet pipe 2. When the sleeve 3 is installed on the outside of the outlet pipe 2 and the limiting protrusion 31 is fitted in the limiting groove 21, a limit can be formed, that is, the sleeve 3 will not fall off the outlet pipe 2 through the fitting of the limiting protrusion 31 and the limiting groove 21.

[0024] The outlet pipe 2 and the ferrule 3 are sealed and inserted into the water hole 11. The ferrule 3 is a cylindrical sleeve with a side opening 33 and a "C-shaped" cross-section, that is, the side opening 33 is axially penetrated and arranged on the outer surface of the ferrule 3; therefore, the ferrule 3 forms an elastic pipe sleeve with a variable outer diameter through the design of the side opening 33.

[0025] In actual use, the outer diameter of the ferrule 3 is usually slightly larger than the outer diameter of the water hole 11. When the water outlet pipe 2 and the ferrule 3 are sealed and inserted into the water hole 11, the ferrule 3 will be squeezed and the outer diameter will be elastically reduced through the side opening 33, so that it can easily and conveniently enter the water hole 11. At this time, the aperture enclosed by the limiting protrusion 31 needs to be smaller than the outer diameter of the water outlet pipe 2 at the limiting groove 21. That is, after the ferrule 3 is assembled in place, a certain gap must be reserved between the limiting protrusion 31 and the limiting groove 21 to serve as an accommodating space for the reduction of the outer diameter of the ferrule 3 after being squeezed.

[0026] The top end of the water hole 11 is also configured as a tapered opening 12 that is larger at the top and smaller at the bottom, so as to facilitate the rapid insertion of the ferrule 3 .

[0027] At the same time, a stop structure is provided between the ferrule 3 and the water through hole 11 , and the stop structure restricts the water outlet pipe from being separated from the water through hole 11 .

[0028] The anti-slip structure is a circumferential anti-slip groove 13 provided on the inner circumferential surface of the water hole 11, which is a rectangular groove, and a circumferential anti-slip barb 32 is provided on the outer circumferential surface of the ferrule 3, usually on the outer circumferential surface of the bottom of the ferrule.

[0029] When the ferrule 3 is inserted into the water hole 11 by the water outlet pipe 2, the ferrule 3, which is squeezed inward and has a reduced outer diameter, will drive the anti-slip hook 32 to slide downward along the hole wall of the water outlet hole 11 until the anti-slip hook 32 reaches the anti-slip groove 13. The squeezing force on the ferrule 3 disappears and the ferrule 3 will immediately elastically reset and stretch outward to increase the outer diameter, thereby making the anti-slip hook 32 fit exactly in the anti-slip groove 13. At this time, the anti-slip hook 32 will contact the upper groove wall of the anti-slip groove 13 through the hook surface 321 at the top to form a fixed position, thereby simultaneously restricting the water outlet pipe 2 from being separated from the water hole 11.

[0030] Of course, if the water outlet pipe 2 continues to be inserted inward, the ferrule 3 will be driven so that the bottom end of the anti-slip hook 32 contacts the lower groove wall of the anti-slip groove 13, thereby forming an insertion stroke limit. Therefore, the up and down movements of the water outlet pipe 2 are restricted by the assembly of the anti-slip hook 32 and the anti-slip groove 13, so that the connection structure has a greater pressure-bearing capacity.

[0031] In addition, the outer circumferential surface of the anti-slip hook 32 is set to a tapered surface 322 that is larger at the top and smaller at the bottom, so that the ferrule 3 can easily and conveniently enter the water hole 11.

[0032] A double-channel O-ring 4 is provided between the water outlet pipe 2 and the water hole 11 to form a sealed connection. Specifically, a circumferential double-channel mounting groove 22 is provided on the outer circumferential surface of the water outlet pipe 2. The double-channel mounting groove is located below the limit groove 21. The double-channel O-ring 4 can be respectively arranged in the double-channel mounting groove 22 and circumferentially contact the hole wall of the water hole 11 to form a double-channel seal. At the same time, the horizontal shaking of the water outlet pipe 2 is reduced, ensuring that the installation of the water outlet pipe 2 is more stable.

[0033] The outlet pipe 2 of the present invention is sealed and plugged in and prevented from falling out by the added ferrule 3. Compared with traditional nut fixing or screw fastening, it has fewer parts and has the advantages of convenient assembly, high efficiency, and reliable connection structure, thereby greatly reducing the factory's production costs and will not affect the aesthetic appearance.

[0034] The above describes the basic principles and main features of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the claimed invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A plug-in faucet outlet pipe connection structure, comprising a valve body (1) and an outlet pipe (2), wherein a water hole (11) is provided in the valve body (1), characterized in that The water outlet pipe (2) is provided with a limiting sleeve (3) on the outside, and the water outlet pipe (2) and the sleeve (3) are sealed and inserted into the water through hole (11). A stop structure is provided between the sleeve (3) and the water through hole (11), and the stop structure limits the water outlet pipe (2) from being separated from the water through hole (11).

2. The plug-in faucet outlet pipe connection structure according to claim 1, characterized in that The inner circumferential surface of the ferrule (3) is provided with a circumferential limiting protrusion (31), and the outer circumferential surface of the water outlet pipe (2) is correspondingly provided with a circumferential limiting groove (21). The ferrule (3) is sleeved on the outside of the water outlet pipe (2), and the limiting protrusion (31) is fitted in the limiting groove (21) to form a limit.

3. The plug-in faucet outlet pipe connection structure according to claim 1, characterized in that The ferrule (3) is a cylindrical sleeve with a side opening (33) and a "C-shaped" cross section.

4. The in-line faucet outlet pipe connection structure according to claim 3, characterized in that The outer diameter of the ferrule (3) is larger than the outer diameter of the water hole (11), and the ferrule (3) is squeezed and elastically reduces its outer diameter through the side opening (33) to enter the water hole (11).

5. The in-line faucet outlet pipe connection structure according to claim 1, characterized in that The anti-slip structure is provided with a circumferential anti-slip groove (13) on the inner circumferential surface of the water hole (11), and a circumferential anti-slip barb (32) is provided on the outer circumferential surface of the ferrule (3). The ferrule (3) is fitted into the anti-slip groove (13) via the anti-slip barb (32) to form an anti-slip structure, thereby simultaneously restricting the water outlet pipe (2) from being separated from the water hole (11).

6. The in-line faucet outlet pipe connection structure according to claim 5, characterized in that The anti-slip groove (13) is a rectangular groove, and the anti-slip barb (32) contacts the upper groove wall of the anti-slip groove (13) through the hook surface (321) at the top to form an anti-slip state.

7. The in-line faucet outlet pipe connection structure according to claim 5, characterized in that The outer circumferential surface of the anti-slip hook (32) is configured as a conical surface (322) that is larger at the top and smaller at the bottom.

8. The in-line faucet outlet pipe connection structure according to claim 1, characterized in that The top port of the water hole (11) is configured as a tapered opening (12) that is larger at the top and smaller at the bottom.

9. The in-line faucet outlet pipe connection structure according to claim 1, characterized in that A double-channel O-ring (4) for sealing connection is provided between the water outlet pipe (2) and the water through hole (11).

10. The in-line faucet outlet pipe connection structure according to claim 9, characterized in that A circumferentially surrounding double-channel mounting groove (22) is provided on the outer circumferential surface of the water outlet pipe (2), and the double-channel O-rings (4) are respectively arranged in the double-channel mounting groove (22).

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