High-elasticity rubber and plastic hose

Abstract

The utility model provides a high elasticity rubber and plastic hose relates to rubber hose technical field, including hose body, the hose body is fixed with the joint subassembly, the joint subassembly includes lining sleeve and two sealing half hoop, the lining sleeve circumference is provided with a plurality of axial slotted hole, and the two sealing half hoop is provided with the axial slotted hole. An elastic locking piece extending downwards is integrally formed on the upper side wall of the axial groove hole, a plurality of pressure cylinder bodies are arranged on the lining sleeve, piston rods are connected into the pressure cylinder bodies, frustum sleeves are fixed to the outer walls of the piston rods, and the frustum sleeves abut against the middles of the elastic locking piece in a sliding mode. A sealing ring table is arranged on the upper side of the outer wall of the lining sleeve, a sealing ring gasket is arranged in a sealing ring groove, and a locking bolt is connected between the two sealing half hoops. After the lining sleeve is pressed, the frustum sleeve is driven by the piston rod, so that the elastic locking plate expands outwards and is locked on the inner wall of the hose body.

Description

TECHNICAL FIELD

[0001] The utility model relates to rubber hose technical field, concretely is a kind of high elasticity rubber hose. BACKGROUND

[0002] High elasticity rubber hose is a kind of flexible pipeline made of rubber as main material, mainly applied to building and municipal engineering water supply and drainage, irrigation of agriculture and garden etc., and its core characteristic is that it can withstand large elastic deformation (such as stretching, compression, bending) and quickly recover to original state, while maintaining structural integrity and functional stability, but the elastic modulus of high elasticity rubber hose is lower, and the elastic deformation is larger when being pressed, and the variable diameter barb design of traditional pagoda joint is used to fix the wall of rubber hose, so that the radial deformation is larger after high elasticity rubber hose is pressed, and it is easy to loosen and fall off. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides a kind of high elasticity rubber hose, solve the problem raised in the above background.

[0005] (II) technical scheme

[0006] To achieve the above object, the utility model is realized by the following technical scheme:

[0007] A kind of high elasticity rubber hose, including hose body, the both ends of the hose body are fixed with joint assembly, the joint assembly includes inner bushing and two mutually buckled sealing half hoops, the inner bushing is threaded the end of hose body, the sealing half hoop is covered on the outer wall of hose body, a plurality of axial slot holes are opened in the circumferential direction of the inner bushing, the side wall of the axial slot hole is integrally formed with the elastic lock piece extending downward, the end of the elastic lock piece protrudes from the outer wall of the inner bushing and is in contact with the inner wall of the hose body, the middle part of the elastic lock piece is inwardly inclined and protrudes from the inner wall of the inner bushing, a plurality of pressure cylinders are provided on the inner bushing, the upper side of the pressure cylinder is provided with a communication hole, a sliding piston is arranged in the pressure cylinder, the piston rod is connected to the sliding piston, the piston rod is slidably extended into the axial slot hole, the outer wall of the piston rod is fixed with a conical sleeve, and the conical sleeve is slidably in contact with the middle part of the elastic lock piece.

[0008] Preferably, the upper end of the inner bushing is integrally formed with a connecting nut, the outer wall of the inner bushing is provided with a sealing ring table on the upper side, the outer wall of the sealing ring table is provided with a clamping ring groove, the inner wall of the sealing half hoop is provided with a sealing ring groove corresponding to the clamping ring groove, the sealing ring groove is provided with a sealing ring pad, and the sealing ring pad is sleeved and in contact with the outer wall of the hose body.

[0009] Preferably, a pressure regulating spring is arranged in the pressure cylinder and abuts between the inner wall of the pressure cylinder and the sliding piston.

[0010] Preferably, the elastic locking piece comprises an integral inner inclined portion, an outer inclined portion and a variable diameter portion, the inner inclined portion extends inwardly from the front side wall of the axial slot hole to the inner side of the inner lining sleeve, the conical sleeve slides and abuts on the inner side of the inner inclined portion, the outer inclined portion extends outwardly from the end of the inner inclined portion to the outer side of the inner lining sleeve, the variable diameter portion is arranged as an arc-shaped strip fixed at the end of the outer inclined portion, the variable diameter portion is arranged at the outer edge of the inner lining sleeve, and the lower side of the variable diameter portion is provided with a plug-in inclined surface.

[0011] Preferably, the upper and lower ends of the sealing half hoop are outwardly bent with connecting blocks, and the connecting blocks of the two sealing half hoops are connected with a locking bolt.

[0012] (Three) beneficial effects

[0013] The utility model provides a high elasticity rubber plastic hose. Have the following beneficial effects:

[0014] 1、the utility model discloses a hose body can slip extrusion inner lining sleeve's plug-in inclined surface makes elastic locking piece contract inwards and is inserted to inner lining sleeve successfully, and the sealing ring groove of the sealing half hoop extrusion contracts inwards and is tightly pressed on the outer wall of the hose body and makes it contract inwards to bite the ring groove to reach the effect of sealing.

[0015] 2、the utility model discloses in the case where the pressure fluid is passed into the hose body, the hose body is pressed and deformed, and the pressure in the pipe is transmitted to the pressure cylinder through the communication hole, the conical sleeve on the outer wall of the piston rod is slid downward by the pressure difference extrusion contraction of the pressure regulating spring, the elastic locking piece is expanded outwardly by the outer diameter change sliding abutment of the conical sleeve, and is tightly abutted on the inner wall of the deformed hose body, the hose body is always kept to be pressed and locked to the hose body, and the hose body is avoided from falling off from the joint assembly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model high elasticity rubber plastic hose;

[0017] Figure 2 It is Figure 1 partial sectional view;

[0018] Figure 3 It is a structure schematic view of the utility model inner lining sleeve;

[0019] Figure 4 It is a structure schematic view of the utility model sealing half hoop.

[0020] In the figure: 1, hose body; 2, inner sleeve; 3, sealing half hoop; 4, connecting nut; 5, sealing ring table; 6, sealing ring pad; 7, connecting block; 8, locking bolt; 9, axial slot; 10, elastic locking piece; 11, pressure cylinder; 12, sliding piston; 13, piston rod; 14, pressure regulating spring; 15, conical sleeve. DETAILED DESCRIPTION

[0021] The technical solutions 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.

[0022] The utility model discloses a kind of high-elasticity rubber plastic hoses, as shown in Fig. Figures 1-4 As shown, it includes hose body 1, the two ends of the hose body 1 are fixed with joint assembly, the joint assembly includes inner sleeve 2 and two mutually buckling sealing half hoop 3, the inner sleeve 2 is threaded the end of hose body 1, the inside of the inner sleeve 2 is provided with communicating cavity, the upper end of the inner sleeve 2 is integrally formed with connecting nut 4, the inner wall of the connecting nut 4 is provided with internal thread, the upper side of the outer wall of the inner sleeve 2 is provided with sealing ring table 5, the sealing ring table 5 is arranged at the lower end of connecting nut 4, the lower side of the sealing ring table 5 is provided with the sleeve setting taper convenient for the hose body 1 to set, the outer wall of the sealing ring table 5 is provided with occlusal ring groove, the cross section of the occlusal ring groove is set as trapezoidal, the inner wall of the sealing half hoop 3 is provided with the sealing ring groove corresponding occlusal ring groove, the cross section of the sealing ring groove is set as trapezoidal, the sealing ring pad 6 is arranged in the sealing ring groove, the sealing ring pad 6 is set and touches on the outer wall of the hose body 1, two sealing half hoop 3 is butt joint and buckled on the outer wall of the hose body 1, the upper and lower ends of the sealing half hoop 3 are outwardly bent with connecting block 7, the connecting block 7 between two sealing half hoop 3 is connected with locking bolt 8, the lower side of the connecting nut 4 is provided with positioning ring groove, the upper side of the inner wall of the sealing half hoop 3 is provided with inner concave half ring concave-convex cooperation with positioning ring groove, two sealing half hoop 3 can be mutually butt joint clamping by locking bolt 8, so as to extrude sealing ring pad 6 and make it deform inward, so as to extrude on the outer wall of the hose body 1 and make it contract inward after being pressed and be clamped in occlusal ring groove, form sealing, avoid the leakage of pressure fluid in the hose body 1.

[0023] The inner liner sleeve 2 is provided with a plurality of axial slots 9 on the circumference, and the upper side wall of the axial slots 9 is integrally formed with a downwardly extending elastic locking piece 10, a deformation gap is provided between the two sides of the elastic locking piece 10 and the inner wall of the axial slot, the end of the elastic locking piece 10 protrudes outwardly from the outer wall of the inner liner sleeve 2 and abuts against the inner wall of the hose body 1, the elastic locking piece 10 comprises an integrally formed inner inclined portion, an outer inclined portion and a variable diameter portion, the inner inclined portion extends inwardly from the front side wall of the axial slot 9 to the inner side of the inner liner sleeve 2, the conical sleeve 15 abuts against the inner side of the inner inclined portion, the outer inclined portion extends outwardly from the end of the inner inclined portion to the outer side of the inner liner sleeve 2, the variable diameter portion is provided as an arc-shaped strip fixed at the end of the outer inclined portion, the variable diameter portion is provided at the outer edge of the inner liner sleeve 2, the lower side of the variable diameter portion is provided with a plug-in inclined surface, a plurality of pressure cylinder bodies 11 are provided on the inner liner sleeve 2, a communication hole is formed on the upper side of the pressure cylinder body 11, the communication hole and the communication cavity are in communication with each other, so that the pressure in the hose body 1 can be transmitted from the communication hole to the pressure cylinder body 11, a sliding piston 12 is arranged in the pressure cylinder body 11, a piston rod 13 is connected to the sliding piston 12, a pressure regulating spring 14 is arranged on the outer side of the piston rod 13, the pressure regulating spring 14 abuts between the inner wall of the pressure cylinder body 11 and the sliding piston 12, the piston rod 13 extends backward and slides into the axial slot 9, a conical sleeve 15 is fixed on the outer wall of the piston rod 13, the outer wall of the conical sleeve 15 abuts against the middle part of the elastic locking piece 10, the conical sleeve 15 comprises an integrally formed limiting sleeve and a conical slider, the outer diameter of the limiting sleeve is smaller than the outer diameter of the limiting sleeve, when there is no pressure in the pressure cylinder body 11, the inner side of the inner inclined portion can be kept slidingly abutting against the outer wall of the limiting sleeve under the support of the pressure regulating spring 14, the position of the elastic locking piece 10 can be limited by the limiting sleeve, which is the lowest point of the inward contraction of the elastic locking piece 10, when the pressure fluid is introduced into the hose body 1, the conical slider can be pushed to abut against the inner side of the inner inclined portion, the elastic locking piece 10 can be expanded outwardly by the change of the outer diameter of the conical slider, the outer diameter of the variable diameter portion is increased, so as to abut against the inner wall of the hose body 1 to form locking.

[0024] Working principle:

[0025] The utility model discloses a sleeve body 1 can be set to the outer wall of the inner lining sleeve 2, and the end of sleeve body 1 will gradually resist the insertion inclined surface of elastic lock piece 10 in the process of setting, can keep elastic lock piece 10 in a certain position because of the limitation of spacing sleeve, and through the slippage of inclined surface, can make sleeve body 1 outward elastic deformation expansion and complete the setting of sleeve body 1, the diameter change part of elastic lock piece 10 forms the barb mechanism through the insertion inclined surface of elastic lock piece 10, can avoid sleeve body 1 from falling off the inner lining sleeve 2, and sleeve body 1 is inserted into the bottom of inner lining sleeve 2, and sleeve body 1 is set on the outside of sealing ring table 5, and sealing ring pad 6 is set on the position of sleeve body 1 corresponding sealing ring groove, and the inner concave half ring of two sealing half hoops 3 is positioned and buckled in the outside of sleeve body 1, and two sealing half hoops 3 can be clamped through locking bolt 8, and sealing ring pad 6 is extruded and deformed inward, and sealing ring pad 6 is casted inward sleeve body 1 and makes it protrude inward after being pressed and buckled in the ring groove, forms concave-convex cooperation, so that the sealing between sleeve body 1 and joint assembly can be formed while positioning the sleeve, and the situation of leakage in practical process is avoided.

[0026] When pressure fluid is passed in sleeve body 1, and sleeve body 1 is expanded outward under pressure, the pressure of pressure fluid will be applied on the slippage piston 12 in pressure cylinder body 11 through the communication hole, and the slippage piston 12 is pushed downward through the pressure difference, and in the process, the conical sleeve 15 can be pushed to translate downward and resist elastic lock piece 10, so that it is expanded outward and tightly clamps sleeve body 1.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A high-elasticity rubber plastic hose comprising a hose body, characterized by: The both ends of the hose body are fixed with joint assemblies, the joint assemblies comprise inner bushing sleeves and two mutually buckling sealing half hoops, the inner bushing sleeves are threaded through the end portions of the hose body, the sealing half hoops are covered on the outer walls of the hose body, a plurality of axial slot holes are circumferentially provided on the inner bushing sleeves, downward extending elastic lock plates are integrally formed on the upper side walls of the axial slot holes, the end portions of the elastic lock plates are outward protruded from the outer walls of the inner bushing sleeves and abut against the inner walls of the hose body, the middle portions of the elastic lock plates are inward inclined and protruded from the inner walls of the inner bushing sleeves, a plurality of pressure cylinder bodies are provided on the inner bushing sleeves, communicating holes are provided on the upper sides of the pressure cylinder bodies, sliding pistons are provided in the pressure cylinder bodies, piston rods are connected to the sliding pistons, the piston rods are slidably extended into the axial slot holes, conical sleeve sleeves are fixed on the outer walls of the piston rods and slidably abut against the middle portions of the elastic lock plates.

2. A high-elasticity rubber plastic hose according to claim 1, characterized in that: The upper ends of the inner bushing sleeves are integrally formed with connecting nuts, sealing ring platforms are provided on the outer walls of the inner bushing sleeves, the outer walls of the sealing ring platforms are provided with clamping ring grooves, the inner walls of the sealing half hoops are provided with sealing ring grooves corresponding to the clamping ring grooves, sealing ring pads are provided in the sealing ring grooves and abut against the outer walls of the hose body.

3. A high elasticity rubber plastic hose according to claim 2, characterized in that: Pressure regulating springs are provided in the pressure cylinder bodies and abut between the inner walls of the pressure cylinder bodies and the sliding pistons.

4. A high elasticity rubber plastic hose according to claim 3, characterized in that: The elastic lock plates comprise integrally formed inner inclined portions, outer inclined portions and variable diameter portions, the inner inclined portions extend from the front side walls of the axial slot holes to the inner sides of the inner bushing sleeves, the conical sleeve sleeves slidably abut against the inner sides of the inner inclined portions, the outer inclined portions extend from the end portions of the inner inclined portions to the outer sides of the inner bushing sleeves, the variable diameter portions are provided as arc-shaped strips fixed on the end portions of the outer inclined portions, the variable diameter portions are provided on the outer edges of the inner bushing sleeves, and the lower sides of the variable diameter portions are provided with insertion inclined surfaces.

5. A high elasticity rubber plastic hose according to claim 4, characterized in that: The upper and lower end portions of the sealing half hoops are outwardly bent with connecting blocks, and the connecting blocks of the two sealing half hoops are connected with locking bolts.

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