Multi-level rubber and plastic high-pressure hose connecting piece

Abstract

The utility model provides a multi-level rubber and plastic high-pressure hose connecting piece, which relates to the technical field of connecting pieces and comprises a connecting piece body, two ends of the connecting piece body extend to form connecting pipes, each connecting pipe comprises a thread part, an extrusion part and an inserting part which are integrally formed, and the outer wall of each extrusion part is rotatably connected with a torsion ring. An inclined extrusion face is arranged on the inner wall of the torsion ring, torsion protruding strips are arranged on the inner wall of the inclined extrusion face, a plurality of rotating tooth grooves are formed in the outer wall of the torsion ring, the threaded part is in threaded connection with an adjusting sleeve, and a plurality of torsion sliding strips are arranged at the front end of the inner wall of the adjusting sleeve. The torsion sliding strip is connected into the rotating tooth groove in a concave-convex fit and sliding mode. The end portion of the multi-level hose can be twisted while being sealed through the torsion ring, the connecting strength of the multi-level hose and the connecting piece body is improved, meanwhile, high-pressure water is prevented from acting on the end portion of the multi-level hose, and the axial force of the high-pressure water on the multi-level hose is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a multi-level rubber-plastic high-pressure hose connector. Background Art

[0002] PVC fiber reinforced hose, commonly known as: snake skin hose, wire hose, mesh hose, garden hose, pressure hose, air hose, pneumatic hose, etc., is generally used in mechanical devices with relatively high pressure, such as: high-pressure water pumps, air pumps, sprayers, etc., usually this type of enhanced wall thickness and hardness to improve the pressure-bearing capacity of the pipe. Common forms are generally three-rubber two-wire, two-rubber one-wire and other multi-layer rubber hoses.

[0003] Existing hose connectors are usually connected by interference fit, and the connection and fixation are achieved by squeezing the side wall of the hose by the side wall of the connector to deform and embed into each other. However, the thickness of the multi-layer rubber hose is generally large, that is, the deformation is large, and the hose deformation caused by interference fit is small, and the bite force on the hose is insufficient. The high pressure in the pipe acts on the cross-section of the hose end, which can easily cause the hose to fall off under high pressure. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a multi-layer rubber-plastic high-pressure hose connector, which solves the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A multi-layer rubber and plastic high-pressure hose connector, comprising a connector body and a multi-layer hose, with connecting pipes extending from both ends of the connector body, the connecting pipe comprising an integrally formed threaded portion, an extrusion portion and a plug-in portion, the multi-layer hose is sleeved on the plug-in portion, a plurality of interference rings connected to the end are arranged on the outside of the plug-in portion, the outer wall of the extrusion portion is rotatably connected with a torsion ring, the inner wall of the torsion ring is provided with an inclined extrusion surface, the inner wall of the inclined extrusion surface is provided with a torsion ridge, the torsion ridge is arranged to be spirally distributed on the inclined extrusion surface, the inclined extrusion surface abuts against the end of the multi-layer hose, the torsion ridge is clamped on the outer wall of the multi-layer hose, the outer wall of the torsion ring is provided with a plurality of rotating tooth grooves, the threaded portion is threadedly connected with an adjusting sleeve, a plurality of torsion slides are arranged at the front end of the inner wall of the adjusting sleeve, and the torsion slides are slidably connected in the rotating tooth grooves by concave-convex matching.

[0009] Preferably, a snap-fit ​​mechanism is connected to the outer side of the connecting pipe, and the snap-fit ​​mechanism includes an upper snap-fit ​​plate, a lower snap-fit ​​plate, a snap-fit ​​bolt and a thorn ring assembly. The upper snap-fit ​​plate and the lower snap-fit ​​plate are symmetrically arranged, and a connecting ring groove and a snap-fit ​​ring groove are arranged on the upper snap-fit ​​plate. The connecting ring groove is rotatably connected to the front end of the adjusting sleeve, and the thorn ring assembly is installed in the snap-fit ​​ring groove. The thorn ring assembly is clamped on the outer wall of the multi-layer hose, and the upper snap-fit ​​plate and the lower snap-fit ​​plate are connected by snap-fit ​​bolts.

[0010] Preferably, the thorn ring assembly includes a positioning thorn ring and a plurality of positioning thorn rods, the positioning thorn ring is provided with a plurality of thorn ring holes distributed circumferentially, the positioning thorn rods are slidably connected in the thorn ring holes, and the positioning thorn rods are abutted and clamped on the outer wall of the multi-layer hose.

[0011] Preferably, an extrusion bevel block is provided at the upper end of the positioning thorn rod, and a contact head is provided at the lower end, a return spring is connected between the extrusion bevel block and the positioning thorn ring, the contact head contacts the outer wall of the multi-layer hose, a contact ring platform is provided in the buckling ring groove, and the contact ring platform contacts the extrusion bevel block.

[0012] Preferably, the interference ring platform includes an integrally formed interference portion, a sleeve portion and a ring platform portion, the sleeve portion is sleeved on the outer wall of the multi-layer hose, the interference portion is in contact with the extrusion bevel block, the outer wall of the ring platform portion is set as an inclined surface, and the side wall of the snap-fit ​​ring groove is in contact with the inclined surface of the ring platform portion.

[0013] Preferably, a positioning ring is threadedly connected to the extrusion portion, and the torsion ring is rotatably fitted and abutted against the positioning ring.

[0014] Beneficial Effects

[0015] The utility model provides a multi-layer rubber-plastic high-pressure hose connector. It has the following beneficial effects:

[0016] 1. In the utility model, the multi-layer hose is sleeved on the interference ring of the plug-in part, and the end of the multi-layer hose is sealed by the torsion ring to prevent high-pressure water from contacting the end of the multi-layer hose, reduce the axial force and prevent the multi-layer hose from detaching. At the same time, the torsion ring twists the end of the multi-layer hose to increase the connection strength between the multi-layer hose and the connector body to prevent the multi-layer hose from detaching. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of a multi-layer rubber-plastic high-pressure hose connector of the utility model;

[0018] Figure 2 It is an exploded view of the connecting member body in the utility model;

[0019] Figure 3It is a cross-sectional view of the connecting member body in the utility model;

[0020] Figure 4 It is an exploded view of the buckling part in the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the thorn ring assembly of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the torsion ring in the utility model;

[0023] Figure 7 It is a schematic diagram of the structure of the interference ring platform in the utility model;

[0024] Figure 8 It is a structural schematic diagram of the adjusting sleeve in the utility model.

[0025] In the figure: 1. multi-level hose; 2. threaded portion; 3. extrusion portion; 4. plug-in portion; 5. interference ring; 6. torsion ring; 7. inclined extrusion surface; 8. torsion convex strip; 9. rotating tooth groove; 10. adjusting sleeve; 11. torsion slide; 12. upper buckle plate; 13. lower buckle plate; 14. lower buckle bolt; 15. thorn ring assembly; 151. positioning thorn ring; 152. positioning thorn rod; 153. extrusion inclined block; 154. reset spring; 16. connecting ring groove; 17. buckling ring groove; 18. abutment ring platform; 181. abutment portion; 182. sleeve portion; 183. ring platform portion; 19. positioning ring. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0027] The utility model provides a multi-layer rubber-plastic high-pressure hose connector.

[0028] like Figure 1-8As shown, it includes a connector body and a multi-level hose 1, and connecting pipes are extended at both ends of the connector body. The connecting pipe includes an integrally formed threaded portion 2, an extrusion portion 3 and a plug-in portion 4. The extrusion portion 3 is threadedly connected with a positioning ring 19. The multi-level hose 1 is sleeved on the plug-in portion 4, and a plurality of tail-connected interference rings 5 ​​are arranged on the outside of the plug-in portion 4. The outer wall of the extrusion portion 3 is rotatably connected with a torsion ring 6, and the torsion ring 6 is rotatably fitted and abutted against the positioning ring 4. The inner wall of the torsion ring 6 is provided with an inclined extrusion surface 7, and the inner wall of the inclined extrusion surface 7 is provided with a torsion ridge 8, and the torsion ridge 8 is arranged to be spirally distributed on the inclined extrusion surface 7. The inclined extrusion surface 7 abuts against the end of the multi-level hose 1, the torsion convex strip 8 is clamped on the outer wall of the multi-level hose 1, the outer wall of the torsion ring 6 is provided with a plurality of rotating tooth grooves 9, the threaded portion 2 is threadedly connected with an adjusting sleeve 10, and the inner wall front end of the adjusting sleeve 10 is provided with a plurality of torsion slides 11, and the torsion slides 11 are slidably connected in the rotating tooth grooves 9 with concave-convex fitting, and the outer side of the connecting pipe is connected with a buckling mechanism, and the buckling mechanism includes an upper buckling plate 12, a lower buckling plate 13, a lower buckle bolt 14 and a thorn ring assembly 15, and the upper buckling plate 12 and the lower buckling plate 13 are symmetrically arranged, and a connecting ring is provided on the upper buckling plate 12. Groove 16 and buckling ring groove 17, the connecting ring groove 16 is rotatably connected to the front end of the adjusting sleeve 10, the thorn ring assembly 15 is installed in the buckling ring groove 17, the thorn ring assembly 15 is clamped on the outer wall of the multi-layer hose 1, the upper buckling plate 12 and the lower buckling plate 13 are connected by the lower buckle bolt 14, the thorn ring assembly 15 includes a positioning thorn ring 151 and a plurality of positioning thorn rods 152, a plurality of thorn ring holes are distributed on the circumference of the positioning thorn ring 151, the positioning thorn rod 152 is slidably connected in the thorn ring hole, the positioning thorn rod is clamped on the outer wall of the multi-layer hose 1, the upper end of the positioning thorn rod 152 is provided with an extrusion inclined block 153, and the lower A contact head is provided at the end, a return spring 154 is connected between the extrusion bevel block 153 and the positioning thorn ring 151, the contact head contacts the outer wall of the multi-layer hose 1, a contact ring platform 18 is provided in the buckling ring groove 17, the contact ring platform 18 contacts the extrusion bevel block 153, the contact ring platform 18 includes an integrally formed contact portion 181, a sleeve portion 182 and a ring platform portion 183, the sleeve portion 182 is sleeved on the outer wall of the multi-layer hose 1, the contact portion 181 contacts the extrusion bevel block 153, the outer wall of the ring platform portion 183 is set as an inclined surface, and the side wall of the buckling ring groove 17 contacts the inclined surface of the ring platform portion 183.

[0029] Working principle:

[0030] In the utility model, the multi-level hose 1 is sleeved on the interference ring 5 of the plug-in part 4, and the front end is inserted into the gap between the inclined extrusion surface 7 of the torsion ring 6 and the extrusion part 3. The upper buckle plate 12 and the lower buckle plate 13 are locked by the lower buckle bolt 14. The side wall of the buckle ring groove 17 is pressed against the ring platform 183 of the contact ring platform 18. The contact ring platform 18 slides toward the thorn ring assembly 15 in the buckle ring groove 17 through the inclined surface extrusion, and the contact portion 181 presses against the extrusion inclined block 153. The positioning thorn rod 152 is pressed against the outer wall of the multi-level hose 1 to form axial positioning through pressure. The adjusting sleeve 10 is rotated through the threaded connection to make the adjusting sleeve 10 slide toward the rear side, driving the buckle mechanism to slide backward as a whole, that is, through the fixed The thorn rod 152 pulls the multi-layer hose 1 to slide backward, so that the end of the multi-layer hose 1 slides and extends into the torsion ring 6 and is squeezed into the inside of the torsion ring 6. The end of the multi-layer hose 1 is deformed and squeezed, forming a seal between the torsion ring 6 and the extrusion part 3 to prevent the axial force formed by the high-pressure water acting on the end of the multi-layer hose 1 from causing the hose 1 to disengage, and the multi-layer hose 1 is prevented from disengaging by reducing the axial force; the torsion slide bar 11 cooperates with the rotating tooth groove 9, and while the adjusting sleeve 10 is rotated, the torsion ring 6 also rotates at the same time, and the torsion convex strip 8 inside the torsion strip is clamped on the outer wall of the multi-layer hose 1 to twist the end of the multi-layer hose 1, which can increase the connection strength between the multi-layer hose 1 and the connector body, and prevent the multi-layer hose 1 from disengaging due to high pressure.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-layer rubber-plastic high-pressure hose connector, comprising a connector body and a multi-layer hose, characterized in that: Connecting tubes are extended at both ends of the connector body, and the connecting tubes include an integrally formed threaded portion, an extrusion portion and a plug-in portion. The multi-level hose is sleeved on the plug-in portion, and a plurality of interference rings connected to the end are arranged on the outside of the plug-in portion. The outer wall of the extrusion portion is rotatably connected with a torsion ring, and the inner wall of the torsion ring is provided with an inclined extrusion surface, and the inner wall of the inclined extrusion surface is provided with a torsion ridge, and the torsion ridge is arranged to be spirally distributed on the inclined extrusion surface, and the inclined extrusion surface abuts against the end of the multi-level hose, and the torsion ridge is clamped on the outer wall of the multi-level hose, and the outer wall of the torsion ring is provided with a plurality of rotating tooth grooves, and the threaded portion is threadedly connected with an adjusting sleeve, and a plurality of torsion slides are arranged at the front end of the inner wall of the adjusting sleeve, and the torsion slides are connected in the rotating tooth grooves by sliding with concave and convex fitting.

2. A multi-level rubber-plastic high-pressure hose connector according to claim 1, characterized in that: A snap-fit ​​mechanism is connected to the outer side of the connecting pipe, and the snap-fit ​​mechanism includes an upper snap-fit ​​plate, a lower snap-fit ​​plate, a snap-fit ​​bolt and a thorn ring assembly. The upper snap-fit ​​plate and the lower snap-fit ​​plate are symmetrically arranged, and a connecting ring groove and a snap-fit ​​ring groove are arranged on the upper snap-fit ​​plate. The connecting ring groove is rotatably connected to the front end of the adjusting sleeve, and the thorn ring assembly is installed in the snap-fit ​​ring groove. The thorn ring assembly is clamped on the outer wall of the multi-layer hose, and the upper snap-fit ​​plate and the lower snap-fit ​​plate are connected by snap-fit ​​bolts.

3. A multi-level rubber-plastic high-pressure hose connector according to claim 2, characterized in that: The thorn ring assembly comprises a positioning thorn ring and a plurality of positioning thorn rods. The positioning thorn ring is circumferentially provided with a plurality of thorn ring holes. The positioning thorn rods are slidably connected in the thorn ring holes. The positioning thorn rods are abutted and clamped on the outer wall of the multi-layer hose.

4. The multi-layer rubber-plastic high-pressure hose connector according to claim 3, characterized in that: The upper end of the positioning thorn rod is provided with an extrusion oblique block, and the lower end is provided with a contact head. A reset spring is connected between the extrusion oblique block and the positioning thorn ring. The contact head contacts the outer wall of the multi-layer hose. A contact ring platform is provided in the buckling ring groove, and the contact ring platform contacts the extrusion oblique block.

5. The multi-level rubber-plastic high-pressure hose connector according to claim 4, characterized in that: The abutment ring platform comprises an integrally formed abutment portion, a sleeve portion and a ring platform portion, the sleeve portion is sleeved on the outer wall of the multi-layer hose, the abutment portion abuts on the extrusion bevel block, the outer wall of the ring platform portion is arranged as an inclined surface, and the side wall of the buckling ring groove abuts on the inclined surface of the ring platform portion.

6. The multi-level rubber-plastic high-pressure hose connector according to claim 5, characterized in that: The extrusion portion is threadedly connected with a positioning ring, and the torsion ring is rotatably fitted and abutted against the positioning ring.

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