Rotary male joint for water hose

Abstract

A rotary male joint of a water hose relates to the connecting technology of pipes and comprises a joint body and an inner pipe, external threads are arranged on the outer side wall of a tubular joint, a through hole is formed in the joint body, the diameter of the through hole is smaller than that of a pipe hole of the tubular joint, the inner pipe comprises a front connecting section and a rear connecting section, and the front connecting section penetrates through the through hole. A front limiting structure and a rear limiting structure are arranged on the front section connecting section, a sealing ring is arranged on the inner side wall of the penetrating hole, a plurality of balls are arranged between the front limiting structure and the locking side wall, a flange is arranged on the root portion, facing the locking side wall, of the annular flange, and the flanges enable the balls to be close to the hole wall of the pipe hole. Compared with the prior art, the utility model has the advantages that the processing is easy, and the ball can limit the shaking of the front limiting structure on the connecting section of the front section of the inner pipe.

Description

Technical Field

[0001] The utility model relates to a pipe connection technology, in particular to an improved pipe joint. Background Art

[0002] As disclosed in patent CN202120500761.9, the existing pipe joint, in which the rotation of the joint is not hindered by the connected soft water pipe and can be smoothly sealed and screwed in the internal threaded sleeve, includes a joint body with a tubular joint connected to one end, an inner tube rotatably connected to the joint body, an outer wall of the tubular joint is provided with an external thread, a through hole is provided in the joint body, the diameter of the through hole is smaller than the diameter of the tube hole of the tubular joint, so that a stop side wall is formed between the through hole in the joint body and the tube hole of the tubular joint, the inner tube includes a front connecting section and a rear connecting section connected to the soft water pipe, the front connecting section passes through the through hole, and the front connecting section passes through the through hole. A front limiting structure and a rear limiting structure are respectively arranged outside the front port and the rear port corresponding to the perforation on the connecting section, and the front limiting structure and the rear limiting structure limit the front connecting section in the perforation, and a sealing ring is arranged between the inner side wall of the perforation and the corresponding front connecting section, and a plurality of balls are arranged between the front limiting structure and the stop side wall, and the front limiting structure is a circular ring flange, and the diameter of the circular ring flange is slightly smaller than the diameter of the tube hole of the tubular joint, and an inner sealing ring is arranged between the circular ring flange and the inner wall of the tube hole of the corresponding tubular joint, and a circular ring groove is arranged on the stop side wall of the tubular joint so that the balls can only roll in the circular ring groove. The annular groove for mounting the positioning ball in the prior art is arranged on the stop side wall of the tubular joint. During processing, it is complicated because of the interference of the tube hole of the tubular joint. Moreover, the annular groove is arranged on the stop side wall of the tubular joint, so that the ball cannot limit the shaking of the front limiting structure on the front connecting section of the inner tube, so that the front limiting structure leans against the tube hole, and the friction force generated prevents the inner tube from rotating smoothly relative to the tubular joint. Summary of the invention

[0003] The utility model aims to provide a soft water pipe rotating male thread joint which is easy to process and has a ball capable of limiting the shaking of a front limiting structure on a front connecting section of an inner pipe.

[0004] The utility model is a soft water pipe rotary male thread joint, which comprises a joint body with a tubular joint connected at one end, an inner tube rotatably connected to the joint body, an outer wall of the tubular joint is provided with an external thread, a through hole is provided in the joint body, the diameter of the through hole is smaller than the diameter of the tube hole of the tubular joint, so that a stop side wall is formed between the through hole in the joint body and the tube hole of the tubular joint, the inner tube comprises a front section connecting section and a rear section connecting section connected to the soft water pipe, the front section connecting section passes through the through hole, and the front section connecting section corresponding to the through hole is provided with a through hole. A front limiting structure and a rear limiting structure are respectively arranged outside the port and outside the rear port. The front limiting structure and the rear limiting structure limit the front connecting section in the through hole. A sealing ring is arranged between the inner wall of the through hole and the corresponding front connecting section. A plurality of balls are arranged between the front limiting structure and the stop side wall. The front limiting structure is a circular ring flange. The diameter of the circular ring flange is slightly smaller than the diameter of the tube hole of the tubular joint. The special feature is that a flange is arranged at the root of the circular ring flange facing the stop side wall, and the flange makes the balls lean against the hole wall of the tube hole.

[0005] The flange is used to make the ball bear against the wall of the tube hole. When the inner tube rotates relative to the joint body, the annular flange will not bear against the wall of the tube hole due to the shaking of the inner tube, thus avoiding the friction force of the annular flange against the wall of the tube hole hindering the rotation of the inner tube relative to the joint body, so that the inner tube can rotate smoothly relative to the joint body.

[0006] At the same time, since the flange is processed at the root of the open annular flange of the inner tube, it will not be blocked by obstacles during processing, so the processing is easy.

[0007] Compared with the prior art, the utility model has the advantages of easy processing and the ball can limit the shaking of the front limit structure on the front connecting section of the inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a structural schematic diagram of a soft water pipe rotary male thread joint of the utility model;

[0009] Figure 2 It is an exploded view of the utility model soft water pipe rotating male thread joint head.

[0010] Description of the accompanying drawings: 1-tubular joint; 2-joint body; 3-inner tube; 301-front connecting section; 302-rear connecting section; 4-external thread; 5-perforation; 6-tube hole; 7-stop side wall; 8-front limiting structure; 9-rear limiting structure; 10-sealing ring; 11-inlay groove; 12-circlip groove; 13-front flange; 14-ball; 15-flange DETAILED DESCRIPTION

[0011] The utility model of the soft water pipe rotary male thread joint is now further described in detail with reference to the accompanying drawings and embodiments:

[0012] like Figure 1 ,2 As shown, the utility model soft water pipe rotary male thread joint includes a joint body 2 with a tubular joint 1 connected at one end, an inner tube 3 rotatably connected to the joint body 2, an outer wall of the tubular joint 1 is provided with an external thread 4 so as to be connected to a water spray gun, a through hole 5 is provided in the joint body 2, the diameter of the through hole 5 is smaller than the diameter of the tube hole 6 of the tubular joint 1, so that a stop side wall 7 is formed between the through hole 5 in the joint body 2 and the tube hole 6 of the tubular joint 1, the inner tube 3 includes a front connecting section 301 and a rear connecting section 302 connected to the soft water pipe, the front connecting section 301 passes through the through hole 5, and a front limiting structure 8 and a rear limiting structure 9 are respectively provided outside the front port and the rear port corresponding to the through hole 5 on the front connecting section 301, and the front limiting structure 8 and the rear limiting structure 9 limit the front connecting section 301 in the through hole. In the hole 5, two sealing rings 10 are arranged between the inner side wall of the through hole 5 and the corresponding front connecting section 301, and two inlay grooves 11 are arranged on the front connecting section 301. The two sealing rings 10 are respectively arranged on the two inlay grooves 11. The rear limiting structure 9 is a retaining spring, and a retaining spring groove 12 is arranged outside the rear port corresponding to the through hole 5 on the front connecting section 301. The retaining spring is arranged on the retaining spring groove 12, and a front flange 13 is arranged on the other end face of the joint 2 corresponding to the retaining spring. A plurality of balls 14 are arranged between the front limiting structure 8 and the stop side wall 7. The front limiting structure 8 is an annular flange, and the diameter of the annular flange is slightly smaller than the diameter of the tube hole 6 of the tubular joint 1. The special feature is that a flange 15 is arranged on the root of the annular flange facing the stop side wall 7, and the flange 15 makes the balls 14 close to the hole wall of the tube hole 6.

Claims

1. A soft water pipe rotary male thread joint, comprising a joint body with a tubular joint connected at one end, an inner tube rotatably connected to the joint body, an outer wall of the tubular joint is provided with an external thread, a through hole is provided in the joint body, the diameter of the through hole is smaller than the diameter of the tube hole of the tubular joint, so that a stop side wall is formed between the through hole in the joint body and the tube hole of the tubular joint, the inner tube comprises a front connecting section and a rear connecting section connected to the soft water pipe, the front connecting section passes through the through hole, and a front limiting structure and a rear limiting structure are respectively provided outside the front port and the rear port corresponding to the through hole on the front connecting section, the front limiting structure and the rear limiting structure limit the front connecting section in the through hole, a sealing ring is provided between the inner wall of the through hole and the corresponding front connecting section, a plurality of balls are provided between the front limiting structure and the stop side wall, the front limiting structure is a circular ring flange, the diameter of the circular ring flange is slightly smaller than the diameter of the tube hole of the tubular joint, and is characterized in that A flange is arranged at the root of the annular flange facing the stop side wall, and the flange enables the ball to lean against the hole wall of the tube hole.

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