Quick screwing type pipe joint

Abstract

The utility model relates to the technical field of joints, in particular to a quick-screwing type pipe joint which comprises a joint pipe, a gasket and a pipe joint nut, threads are arranged on the outer side of the bottom of the joint pipe, the joint pipe is connected with a connecting pipe in a thread meshing mode, and threads are arranged on the outer side of the top of the joint pipe. The upper end of the connector pipe is sleeved with a pipe connector nut in a threaded mode. During use, the outer ring rotates anticlockwise, the inner ring is driven to rotate through abutting fit of the rubber clamping pieces and the ratchet strips, when the outer ring rotates clockwise, due to the fact that the rubber clamping pieces are continuously extruded and deformed by the inclined faces of the ratchet strips, the inner ring does not rotate along with the outer ring, external interference is reduced, and the service life of the inner ring is prolonged. The hose is prevented from being separated from the upper end of the joint pipe, and stable connection between the joint pipe and the plastic hose is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of joint, especially to a quick twist type pipe joint. BACKGROUND

[0002] The quick twist type pipe joint is a sleeve joint for the quick connection of a pipeline. The quick twist type pipe joint is usually made of stainless steel, brass or other materials, and is generally provided with an external thread joint at one end and a plastic hose clamp connection at the other end. There are also various forms of three-end quick twist joints and quick twist elbow joints.

[0003] However, the current quick twist type pipe joint uses a clamp connection mode to connect and fix the pipe end joint. This connection mode is not safe, as anyone can remove the corresponding plastic hose end and easily cause the joint and the pipe end to separate due to the rotation of the joint nut in the external environment, resulting in the failure of the pipe joint connection. SUMMARY

[0004] The skilled person in the art provides a quick twist type pipe joint to solve the problems in the background.

[0005] To solve the above technical problems, the utility model provides a quick twist type pipe joint, which comprises a joint pipe, a gasket and a pipe joint nut. The bottom outer side of the joint pipe is provided with threads, and the joint pipe is connected to the connecting pipe in a threaded engagement mode. The top outer side of the joint pipe is also provided with threads, and the upper end of the joint pipe is provided with a pipe joint nut.

[0006] The pipe joint nut comprises an inner ring, a ratchet strip, an internal thread, a positioning bolt slot, an outer ring, an inner groove, a rubber clamping piece, a positioning hole, a positioning bolt and a metal baffle, a plurality of rubber clamping pieces are fixedly installed on the annular groove wall of the inner groove, the obtuse angle connection between the rubber clamping piece and the inner groove groove wall is fixedly installed with the metal baffle, the metal baffle is used for blocking the excessive deformation of the rubber clamping piece during clockwise rotation, the outer ring wall surface of the inner ring is annularly fixedly installed with a plurality of ratchet strips, so that the inner ring and the plurality of ratchet strips form a ratchet structure, and then the rubber clamping piece is correspondingly arranged, so that when the outer ring rotates counterclockwise, the rubber clamping piece and the ratchet strip are abutted and matched, the inner ring is driven to rotate, and when the outer ring rotates clockwise, the rubber clamping piece is continuously extruded and deformed by the slope of the ratchet strip, the inner ring does not rotate with the outer ring, external interference is reduced, the hose is prevented from being separated from the upper end of the joint pipe, a plurality of positioning bolt slots are annularly formed in the upper end surface of the inner ring, a plurality of positioning holes are annularly formed in the upper end surface of the outer ring, a positioning bolt is arranged in the positioning bolt slot, and the positioning bolt is arranged in the positioning bolt slot through the positioning hole, so that when the outer ring rotates clockwise, the inner ring can be driven to rotate synchronously through the positioning bolt, and the inner ring can be taken off from the joint pipe.

[0007] In a preferred embodiment: the pipe joint nut is provided with a gasket below, the gasket is used to keep the pipe joint nut at a proper height when the pipe joint nut is screwed on the top of the joint pipe, and the pipe joint nut is prevented from being screwed.

[0008] In a preferred embodiment: the inner groove is formed in the inner wall of the outer ring, and the inner ring is rotatably arranged in the inner groove.

[0009] In a preferred embodiment: the rubber clamping piece is in the shape of a triangular strip.

[0010] In a preferred embodiment: the rubber clamping piece is in the shape of a triangular strip.

[0011] In a preferred embodiment: the inner ring is provided with a thread on the inner lower wall surface, so that the inner ring is threadedly engaged with the joint pipe.

[0012] Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:

[0013] 1, when the utility model is used, the outer ring rotates counterclockwise, the rubber clamping piece and the ratchet strip are abutted and matched, the inner ring is driven to rotate, when the outer ring rotates clockwise, the rubber clamping piece is continuously extruded and deformed by the slope of the ratchet strip, the inner ring does not rotate with the outer ring, external interference is reduced, the hose is prevented from being separated from the upper end of the joint pipe, and the stability of the connection between the joint pipe and the plastic hose is ensured.

[0014] 2, the utility model discloses when using, adopt the positioning bolt corresponding with positioning bolt slot and pass through the positioning hole and settle in the positioning bolt slot, make the outer ring ring clockwise rotation, can drive the inner ring ring to rotate through the positioning bolt synchronously, take down the inner ring ring from the joint pipe and replace, guarantee the use safety of connecting plastic hose. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is the structural schematic diagram provided by the application;

[0016] Fig. 2 is the section view of the inner ring ring provided by the application;

[0017] Fig. 3 is the structural schematic diagram of the outer ring ring provided by the application;

[0018] Fig. 4 is the structural connection schematic diagram of the outer ring ring inner rubber clamping piece and metal baffle provided by the application.

[0019] In the drawing: 1, joint pipe;2, gasket;3, pipe joint nut;

[0020] 31, inner ring ring;32, ratchet strip;33, internal thread;34, positioning bolt slot;35, outer ring ring;36, inner recess;37, rubber clamping piece;38, positioning hole;39, positioning bolt;310, metal baffle. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model;Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the protection scope of the utility model.

[0022] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "up", "down", "inner", "outer", "top / end" etc. is the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the utility model, need explanation, unless another explicit provision and limitation, term " install " " set with " " set / connect " " connection " and the like, should do broad sense understanding, for example " connection ", can be wall hanging connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be two element inside communication, for ordinary skilled person in the art, can understand the specific meaning of above-mentioned term in the utility model according to specific circumstances.

[0024] Please refer to Figs. 1-4 In the embodiment, a quick pipe joint is provided, which comprises a joint pipe 1, a gasket 2 and a pipe joint nut 3, the bottom outer side of the joint pipe 1 is provided with threads, the joint pipe 1 is connected with a connecting pipe in a threaded engagement manner, the top outer side of the joint pipe 1 is also provided with threads, the upper end of the joint pipe 1 is threadedly sleeved with the pipe joint nut 3, and the gasket 2 is arranged below the pipe joint nut 3 in a spaced manner, the gasket 2 is used to keep the pipe joint nut 3 at a proper height when the pipe joint nut 3 is screwed on the top of the joint pipe 1, so as to prevent the pipe joint nut 3 from slipping;

[0025] The pipe joint nut 3 comprises an inner ring 31, a ratchet strip 32, an internal thread 33, a positioning bolt slot 34, an outer ring 35, an inner groove 36, a rubber clamping piece 37, a positioning hole 38, a positioning bolt 39 and a metal baffle 310, the inner groove 36 is arranged in the middle of the inner wall of the ring of the outer ring 35, the inner ring 31 is rotatably arranged in the inner groove 36, the rubber clamping piece 37 is fixedly installed on the annular groove wall of the inner groove 36, the rubber clamping piece 37 is in a triangular strip shape, the metal baffle 310 is fixedly installed at the obtuse angle connection of the rubber clamping piece 37 and the groove wall of the inner groove 36, the metal baffle 310 is used for blocking the excessive deformation of the rubber clamping piece 37 during the clockwise rotation of the rubber clamping piece 37, the outer ring wall surface of the inner ring 31 is annularly fixedly installed with the plurality of ratchet strips 32, so that the inner ring 31 and the plurality of ratchet strips 32 form a ratchet structure, and the rubber clamping piece 37 is correspondingly arranged, so that when the outer ring 35 rotates counterclockwise, the inner ring 31 is driven to rotate through the abutting cooperation of the rubber clamping piece 37 and the ratchet strip 32, and when the outer ring 35 rotates clockwise, the inner ring 31 does not rotate with the outer ring 35 due to the continuous extrusion deformation of the rubber clamping piece 37 by the inclined surface of the ratchet strip 32, external interference is reduced, the soft pipe is prevented from being separated from the upper end of the joint pipe 1, the inner ring 31 is threadedly engaged with the joint pipe 1, the upper end surface of the inner ring 31 is annularly provided with the plurality of positioning bolt slots 34, the upper end surface of the outer ring 35 is annularly provided with the plurality of positioning holes 38, the positioning bolt 39 is arranged in the positioning bolt slot 34, and the positioning bolt 39 is arranged in the positioning bolt slot 34 through the positioning hole 38, so that the inner ring 31 can be driven to rotate synchronously through the positioning bolt 39 when the outer ring 35 rotates clockwise, and the inner ring 31 is taken off from the joint pipe 1.

[0026] The working principle of the utility model is:

[0027] When the utility model is used, the outer ring 35 rotates counterclockwise, the inner ring 31 is driven to rotate through the abutting cooperation of the rubber clamping piece 37 and the ratchet strip 32, and when the outer ring 35 rotates clockwise, the inner ring 31 does not rotate with the outer ring 35 due to the continuous extrusion deformation of the rubber clamping piece 37 by the inclined surface of the ratchet strip 32, external interference is reduced, the soft pipe is prevented from being separated from the upper end of the joint pipe 1, the stability of the connection of the joint pipe 1 and the plastic soft pipe is ensured, the inner ring 31 can be taken off from the joint pipe 1 and replaced only when the positioning bolt 39 corresponding to the positioning bolt slot 34 is arranged in the positioning bolt slot 34 through the positioning hole 38, the inner ring 31 can be driven to rotate synchronously through the positioning bolt 39 when the outer ring 35 rotates clockwise, and the use safety of the connected plastic soft pipe is ensured.

[0028] The above merely describes a preferred embodiment of the present application, and the design concept of the present application is not limited thereto, and any person skilled in the art, within the technical scope disclosed by the present application, can make non-essential changes to the present application using the concept, and such changes shall be deemed to fall within the protection scope of the present application.

Claims

1. A quick- coupling pipe joint comprising a joint pipe (1), a gasket (2) and a pipe joint nut (3), characterized in that The bottom outer side of the head pipe (1) is provided with threads, the joint pipe (1) is connected with the connecting pipe in a threaded engagement mode, the top outer side of the joint pipe (1) is also provided with threads, and the upper end of the joint pipe (1) is sleeved with a pipe joint nut (3) in a threaded mode; The pipe joint nut (3) comprises an inner ring (31), a ratchet strip (32), an inner thread (33), a positioning bolt groove (34), an outer ring (35), an inner groove (36), a rubber clamping piece (37), a positioning hole (38), a positioning bolt (39) and a metal baffle (310), a plurality of rubber clamping pieces (37) are fixedly installed on the annular groove wall of the inner groove (36), the obtuse angle connection position of the rubber clamping piece (37) and the inner groove (36) groove wall is fixedly installed with the metal baffle (310), a plurality of ratchet strips (32) are annularly fixedly installed on the outer ring wall surface of the inner ring (31), the inner ring (31) and the plurality of ratchet strips (32) form a ratchet structure, a plurality of positioning bolt grooves (34) are annularly formed on the upper end surface of the inner ring (31), a plurality of positioning holes (38) are annularly formed on the upper end surface of the outer ring (35), the positioning bolt groove (34) is provided with the positioning bolt (39), and the positioning bolt (39) is arranged in the positioning bolt groove (34) through the positioning hole (38).

2. A quick- coupling pipe joint according to claim 1, wherein A gasket (2) is arranged below the pipe joint nut (3).

3. A quick- coupling pipe joint according to claim 1, wherein The inner groove (36) is formed in the middle of the inner wall of the outer ring (35), and the inner ring (31) is rotationally arranged in the inner groove (36).

4. A quick- coupling pipe joint according to claim 1, wherein The rubber clamping piece (37) is in the form of a triangular strip.

5. A quick- coupling pipe joint according to claim 4, wherein The rubber clamping piece (37) is in abutment with the ratchet strip (32).

6. A quick- coupling pipe joint according to claim 1, wherein The inner ring (31) is provided with threads on the inner lower side wall surface, and the inner ring (31) is in threaded engagement with the joint pipe (1).

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