CN215111197U

CN215111197U - Joint with elastic sealing structure

Info

Publication number: CN215111197U
Application number: CN202120375071.5U
Authority: CN
Inventors: 李岩峰; 张国栋
Original assignee: Shandong Longkou Special Rubber Hose Co ltd
Current assignee: Shandong Longkou Special Rubber Hose Co ltd
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-12-10
Anticipated expiration: 2031-02-18

Abstract

The utility model discloses a joint with an elastic sealing structure, which comprises a joint and a rubber tube connected with the joint, wherein an inner rubber layer is arranged inside the rubber tube, and a sealing structure is arranged between the joint and the rubber tube; the sealing structure comprises an outer ring groove arranged on the side surface of the joint and a sealing body sleeved in the outer ring groove, wherein a special-shaped surface is arranged on the outer side surface of the sealing body, the special-shaped surface and an inner rubber layer inside the rubber tube are extruded and sealed, the sealing body is made of an elastic material, the sealing structure is made of the elastic material, and the sealing performance is greatly improved by extruding the sealing structure and the inner rubber layer; the seal is through vulcanizing or the mould pressing bonding in the outer annular, and the seal structure internal stress after the mould pressing is low, and warp deformation is little, and mechanical properties is stable, has improved seal structure's life and sealing performance, the utility model provides high gas tightness, the leakproofness is strong, can prevent effectively that the seal from connecting to drop, and is comparatively firm, and the reliability is high.

Description

Joint with elastic sealing structure

Technical Field

The utility model relates to a sealing joint technical field specifically is a joint with elastic seal structure.

Background

The joint is a general name of a connecting piece which can be assembled and disassembled in a fluid passage, mainly comprises a welding type, a clamping sleeve type, a buckling type, a flaring type and the like, and is generally divided into a straight joint, a three-way joint, an elbow, a joint with a movable nut, a hinged joint, a plug, a transition joint and the like, and the materials are usually stainless steel and carbon steel.

The joint commonly used in the prior art is made of metal materials, and when the joint is connected with a rubber tube, the joint is sealed with an inner rubber layer in the rubber tube through extrusion; the rubber tube requires the internal rubber layer hardness to be higher when carrying the medium for grit or concrete, and the joint is direct to be sealed with the higher internal rubber layer contact extrusion of hardness this moment, because the defect that the gas tightness is not good and the leakproofness is poor can appear in both hardness height, also can adopt the seal that increases packing ring, sheet rubber etc. to improve the leakproofness under some circumstances, but this kind of mode seal drops from the joint rear end easily, and is insecure, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a purpose, not good in order to solve the gas tightness, the poor problem of leakproofness with drop easily, insecure, the poor technical problem of reliability.

The technical scheme of the utility model is realized like this: the joint with the elastic sealing structure comprises a joint and a rubber pipe connected with the joint, wherein an inner rubber layer is arranged inside the rubber pipe, and a sealing structure is arranged between the joint and the rubber pipe; the sealing structure comprises an outer annular groove arranged on the side face of the joint and a sealing body sleeved in the outer annular groove, wherein a special-shaped surface is arranged on the outer side face of the sealing body and is in extrusion sealing with an inner rubber layer inside the rubber pipe, the sealing body is made of elastic materials, the sealing structure is made of elastic materials, and the sealing performance is greatly improved by extruding the sealing structure and the inner rubber layer.

Furthermore, the sealing body is bonded in the outer ring groove through vulcanization or die pressing, the internal stress of the molded sealing structure is low, the warping deformation is small, the mechanical property is stable, and the service life and the sealing property of the sealing structure are improved.

Furthermore, the profile surface is a surface with a cross section which is a triangle and is stacked, the triangle and the inner rubber layer are mutually extruded to form a stacked sealing barrier, multi-layer blocking sealing is realized, and the sealing performance is improved.

Furthermore, the sealing structure further comprises an inner convex ring groove, the inner convex ring groove is distributed in the outer ring groove, an inner buckling convex ring corresponding to the inner convex ring groove is arranged on the inner side face of the sealing body and buckled with the corresponding inner convex ring groove, and the inner convex ring groove is buckled with the inner buckling convex ring, so that the firmness of the sealing body in the outer ring groove is improved.

Furthermore, the section of the inner convex ring groove is of an inverted convex structure with the groove bottom larger than the groove opening, and the inner buckle convex ring is more difficult to disengage from the inner convex ring groove due to the inverted convex structure.

Furthermore, the sealing body is made of non-metal materials.

Further, still include interior annular groove interface channel, the intercommunication has interior annular groove interface channel between two adjacent interior convex ring grooves, the circular array of interior annular groove interface channel sets up, and connects through the bulge loop spliced pole between the adjacent interior knot bulge loop, the bulge loop spliced pole is established in interior annular groove interface channel, bulge loop spliced pole and interior knot bulge loop integrated into one piece, and the bulge loop spliced pole is embedded in interior annular groove interface channel, makes the seal more firm.

The rubber pipe sealing device is characterized by further comprising a pressing sleeve, the outer end of the rubber pipe is sleeved with the pressing sleeve, a pressing groove is formed in the inner wall of the pressing sleeve, a pressing convex ring corresponding to the pressing groove is arranged on the outer wall of the rubber pipe and is buckled in the pressing groove, and the sleeve is used for pressing the rubber pipe inwards to enable the inner rubber layer and the sealing body to be extruded to achieve sealing.

Further, the inner wall of rubber tube is equipped with the resistance to plucking and takes off the structure, the resistance to plucking takes off the structure and takes off the groove including the resistance to plucking that sets up at the rubber tube inner wall, sets up the resistance to plucking at the joint lateral wall and takes off the bulge loop, the resistance to plucking takes off the bulge loop and corresponds the setting with the resistance to plucking and takes off the groove, the resistance to plucking takes off the bulge loop card in the inside that the groove was taken off to corresponding resistance to plucking, the resistance to plucking takes off the bulge loop and is no less than one, and the resistance to plucking takes off the structure and mainly increases the joint strength of rubber tube and connector.

Furthermore, still include the sealing washer, press from both sides between sleeve and the rubber tube and press from both sides the sealing washer, the sealing washer mainly is the gap between sealing sleeve and the rubber tube.

The beneficial effects of the utility model are summarized as: the sealing body has higher elasticity, is tightly extruded with the inner rubber layer of the rubber pipe, improves the air tightness, and the special-shaped surface is a surface with a triangular rib lamination cross section; and the inner convex ring groove is of an inverted convex structure with the groove bottom larger than the groove opening, so that the connection strength between the seal body and the joint is effectively ensured, the connection strength between the seal body and the joint is further improved by the inner ring groove connecting channel, the seal body can be effectively prevented from falling off from the joint, and the joint is firm and high in reliability.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial structural sectional view of the present invention.

Fig. 3 is an enlarged view of a partial structure at a of the present invention.

In the figure: the joint comprises a joint 1, a rubber tube 2, a sealing structure 3, an outer annular groove 31, a sealing body 32, a special-shaped surface 33, an inner convex ring groove 4, an inner buckling convex ring 5, an inner annular groove connecting channel 6, a pressing sleeve 7, a pressing groove 71, a pressing convex ring 72, an anti-pulling-off structure 8, an anti-pulling-off groove 81, an anti-pulling-off convex ring 82, a sealing ring 9, an inner rubber layer 10 and a convex ring connecting column 11.

Detailed Description

In order to deepen the understanding of the present invention, the following will be described in detail with reference to the examples and the drawings, and the embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

As shown in fig. 1 to 3, the joint with the elastic sealing structure comprises a joint 1 and a rubber hose 2 connected with the joint 1, wherein an inner rubber layer 10 is arranged inside the rubber hose 2, and a sealing structure 3 is arranged between the joint 1 and the rubber hose 2; the sealing structure 3 comprises an outer annular groove 31 arranged on the side surface of the joint 1 and a sealing body 32 sleeved in the outer annular groove 31, a special-shaped surface 33 is arranged on the outer side surface of the sealing body 32, the special-shaped surface 33 and the inner rubber layer 10 in the rubber pipe 2 are extruded and sealed, the sealing body 32 is made of elastic materials, the sealing structure 3 is made of elastic materials, and the sealing performance is greatly improved by extruding the sealing structure 3 and the inner rubber layer 10; the sealing body 32 is bonded in the outer ring groove 31 through vulcanization or die pressing, the internal stress of the die-pressed sealing structure 3 is low, the warping deformation is small, the mechanical performance is stable, and the service life and the sealing performance of the sealing structure 3 are improved; the special-shaped surface 33 is a surface with a stacked triangular rib cross section, and the triangular rib and the inner rubber layer 10 are mutually extruded to form a stacked sealing barrier, so that multi-layer blocking sealing is realized, and the sealing performance is improved; the sealing structure further comprises an inner convex ring groove 4, the inner convex ring groove 4 is distributed in the outer ring groove 31, an inner buckling convex ring 5 corresponding to the inner convex ring groove 4 is arranged on the inner side face of the sealing body 32, the inner buckling convex ring 5 is buckled with the corresponding inner convex ring groove 4, the inner convex ring groove 4 is buckled with the inner buckling convex ring 5, and the firmness of the sealing body 32 in the outer ring groove 31 is improved; the section of the inner convex ring groove 4 is of an inverted convex structure with the groove bottom larger than the groove opening, and the inverted convex structure enables the inner buckle convex ring 5 to be more difficult to separate from the inner convex ring groove 4; the seal 32 is made of a non-metallic material; the sealing structure further comprises an inner annular groove connecting channel 6, the inner annular groove connecting channel 6 is communicated between two adjacent inner convex annular grooves 4, the inner annular groove connecting channels 6 are arranged in a circular array, the adjacent inner buckling convex rings 5 are connected through convex ring connecting columns 11, the convex ring connecting columns 11 are arranged in the inner annular groove connecting channels 6, the convex ring connecting columns 11 and the inner buckling convex rings 5 are integrally formed, and the convex ring connecting columns 11 are embedded in the inner annular groove connecting channels 6, so that the sealing body 32 is firmer; the rubber hose sealing device further comprises a pressing sleeve 7, the pressing sleeve 7 is sleeved at the outer end of the rubber hose 2, a pressing groove 71 is formed in the inner wall of the pressing sleeve 7, a pressing convex ring 72 corresponding to the pressing groove 71 is arranged on the outer wall of the rubber hose 2, the pressing convex ring 72 is buckled in the pressing groove 71, and the sleeve 7 mainly presses the rubber hose 2 inwards to enable the inner rubber layer 10 to be extruded with the sealing body 32 to achieve sealing; the inner wall of the rubber tube 2 is provided with an anti-pulling-off structure 8, the anti-pulling-off structure 8 comprises an anti-pulling-off groove 81 arranged on the inner wall of the rubber tube 2 and an anti-pulling-off convex ring 82 arranged on the side wall of the connector 1, the anti-pulling-off convex ring 82 is arranged corresponding to the anti-pulling-off groove 81, the anti-pulling-off convex ring 82 is clamped inside the corresponding anti-pulling-off groove 81, the number of the anti-pulling-off convex rings 82 is not less than one, and the anti-pulling-off structure 8 mainly increases the connection strength of the rubber tube 2 and the connector 1; the rubber hose sealing device further comprises a sealing ring 9, the sealing ring 9 is clamped between the pressing sleeve 7 and the rubber hose 2, and the sealing ring 9 is mainly used for sealing a gap between the pressing sleeve 7 and the rubber hose 2.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Joint with elastic sealing structure, including connecting (1), with rubber tube (2) that connect (1) and be connected, the inside of rubber tube (2) is equipped with interior glue film (10), its characterized in that: a sealing structure (3) is arranged between the joint (1) and the rubber pipe (2);

the sealing structure (3) comprises an outer annular groove (31) arranged on the side face of the joint (1) and a sealing body (32) sleeved in the outer annular groove (31), wherein a special-shaped surface (33) is arranged on the outer side face of the sealing body (32), the special-shaped surface (33) is in extrusion sealing with the inner rubber layer (10) inside the rubber pipe (2), and the sealing body (32) is made of elastic materials.

2. A joint with an elastic sealing structure according to claim 1, wherein: the sealing body (32) is bonded in the outer ring groove (31) through vulcanization or molding.

3. A joint with an elastic sealing structure according to claim 1, wherein: the irregular surface (33) is a surface on which ribs having a triangular cross section are stacked.

4. A joint with an elastic sealing structure according to claim 1, wherein: the sealing structure is characterized by further comprising an inner convex ring groove (4), the inner convex ring groove (4) is distributed in the outer ring groove (31), an inner buckling convex ring (5) corresponding to the inner convex ring groove (4) is arranged on the inner side face of the sealing body (32), and the inner buckling convex ring (5) is buckled with the corresponding inner convex ring groove (4).

5. The joint with an elastic seal structure according to claim 4, wherein: the section of the inner convex ring groove (4) is of an inverted convex structure with the groove bottom larger than the groove opening.

6. A joint with an elastic sealing structure according to claim 1, wherein: the sealing body (32) is made of non-metal materials.

7. The joint with an elastic seal structure according to claim 4, wherein: still include interior annular groove linking channel (6), the intercommunication has interior annular groove linking channel (6) between two adjacent interior convex ring grooves (4), the circular array setting of interior annular groove linking channel (6), and connect through bulge loop connecting post (11) between adjacent interior knot bulge loop (5), bulge loop connecting post (11) are established in interior annular groove linking channel (6).

8. A joint with an elastic sealing structure according to claim 1, wherein: the rubber tube pressing device is characterized by further comprising a pressing sleeve (7), the pressing sleeve (7) is sleeved at the outer end of the rubber tube (2), a pressing groove (71) is formed in the inner wall of the pressing sleeve (7), a pressing convex ring (72) corresponding to the pressing groove (71) is arranged on the outer wall of the rubber tube (2), and the pressing convex ring (72) is buckled in the pressing groove (71).

9. A joint with an elastic sealing structure according to claim 1, wherein: the inner wall of rubber tube (2) is equipped with anti-pulling and takes off structure (8), anti-pulling takes off structure (8) and takes off groove (81) including the anti-pulling that sets up at rubber tube (2) inner wall, sets up anti-pulling at joint (1) lateral wall and takes off bulge loop (82), anti-pulling takes off bulge loop (82) and anti-pulling and takes off groove (81) and correspond the setting, anti-pulling takes off bulge loop (82) card in the inside of the anti-pulling that corresponds takes off groove (81), one is no less than in anti-pulling taking off bulge loop (82).

10. The fitting with an elastic sealing structure according to claim 8, characterized in that: still include sealing washer (9), press from both sides between sleeve (7) and rubber tube (2) and press from both sides sealing washer (9).