CN217736606U

CN217736606U - Hose leak protection type connection structure

Info

Publication number: CN217736606U
Application number: CN202221436176.8U
Authority: CN
Inventors: 刘春生; 王可可; 孙志闯; 王亚利
Original assignee: Luoyang Jibai Biotechnology Co ltd
Current assignee: Luoyang Jibai Biotechnology Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-11-04
Anticipated expiration: 2032-06-08

Abstract

The utility model relates to a technical field of pipe joint, specifically a hose leak protection type connection structure, including globular core, globular core includes the straight tube section, straight tube section one end fixedly connected with bulb section, the bulb section is the globular of seting up the through-hole for the center, bulb section sphere diameter is greater than straight tube section external diameter, still include interior sleeve pipe and outer tube, interior sleeve pipe is provided with the external screw thread, the outer tube is provided with the internal thread, the pipe core in the inboard fixedly connected with of interior sleeve pipe, interior pipe core is curved right angled triangle gyration ring for the hypotenuse, the inboard nested outer pipe core that has of outer tube core, outer pipe core is that the hypotenuse is curved right angled triangle gyration ring-type, the central angle of the arc hypotenuse of the cross-section of outer pipe core and interior pipe core all is less than the half of bulb section outside arc central angle. This application forms the chucking of two positions to the hose through outer tube core and interior tube core, reduces the possibility of deviating from under the hose high pressure.

Description

Hose leak protection type connection structure

Technical Field

The application relates to the technical field of pipe joints, in particular to a hose leakage-proof connecting structure.

Background

The extract is filtered when the serum is produced, and for convenience of filtration, the extract is usually passed through a filter element of a filtration apparatus under high pressure. The conveying pipeline of the high-pressure extracting solution is a hose, and the pipelines are usually connected through a clamping sleeve type connector, but the clamping sleeve type connector is easy to disconnect under high pressure.

Disclosure of Invention

To the not enough that prior art exists, the purpose of this application is to provide a hose leak protection type connection structure that is difficult for the pine to take off.

The above application purpose of the present application is achieved by the following technical solutions:

a hose leak-proof type connecting structure comprising:

the spherical core comprises a straight pipe section, one end of the straight pipe section is fixedly connected with a spherical pipe section, and the sphere diameter of the spherical pipe section is larger than the outer diameter of the straight pipe section;

the inner sleeve is provided with an external thread;

the inner tube core is a right-angled triangle slewing ring with an arc-shaped bevel edge, and the inner tube core is axially and fixedly nested on the inner side of the inner sleeve;

an outer sleeve provided with an internal thread;

the outer tube core is in a right-angled triangle revolving ring shape with an arc-shaped bevel edge, and is nested on the inner side of the outer sleeve;

and the central angles of the arc-shaped inclined edges of the sections of the outer tube core and the inner tube core are smaller than one half of the central angle of the outer arc of the cross section of the bulb tube section.

Optionally, the outer tube core is rotatably nested in the outer tube, a ring table is arranged in the outer tube, and one end of the outer tube core, which is far away from the inner tube, is attached to the end face of the ring table.

Optionally, the outer tube core includes N tightening members, N >2, and further includes a fixing ring, and the tightening members are hinged inside the fixing ring.

Optionally, the circumferential array of N tightening members is annular, and an included angle between two ends of each tightening member and a central connecting line of the circumferential array is less than 360 °/N.

Optionally, the fixing ring is provided with an installation groove corresponding to the inner side of the tightening piece, and the tightening piece is hinged in the installation groove.

Optionally, one end of the mounting groove penetrates through the end face of the fixing ring, and a spring element is arranged between the tightening piece and the face, close to the non-penetrating end of the mounting groove, of the mounting groove.

Optionally, the spring element is a spring piece bent in a V shape.

Optionally, an oil collecting groove is formed in the outer side of the straight pipe section, and an oil absorption pad is arranged in the oil collecting groove.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the hose is sleeved on the spherical core, the hose is clamped outside the spherical pipe section at the spherical pipe section through expanding the inner diameter, the outer pipe core and the inner pipe core cambered surface are attached to the outer side of the hose on the spherical pipe section, and the outer pipe core and the inner pipe core are clamped on the spherical pipe section through the outer pipe and the inner pipe which are in threaded connection. The outer tube core and the inner tube core clamp the hose at two positions, so that the possibility of the hose falling off under high pressure is reduced, furthermore, the clamping position of the inner tube core is the end opening part of the hose, and when the hose falls off, the clamping force of the inner tube core and the outward expansion force of the hose are overcome, so that the possibility of the hose falling off under high pressure is reduced;

2. the tightening piece is hinged to the fixing ring through the arrangement of the tightening piece, when the hose tends to be loosened, the hose is loosened to drive one end, far away from the inner sleeve, of the tightening piece to move towards one end, far away from the inner sleeve, of the tightening piece, the tightening piece rotates, one end, close to the inner sleeve, of the tightening piece rotates inwards, the hose is pressed, and the hose is further clamped;

3. by arranging the oil absorption pad, when the extracting solution flows in the hose at high pressure, the extracting solution enters between the hose and the straight pipe section along the hose wall, the oil absorption pad is arranged on the straight pipe section, and part of the extracting solution is absorbed by the oil absorption pad, so that the influence of the extracting solution on the friction force between the hose wall and the outer side wall of the spherical core is reduced.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram of a portion of an embodiment of the present application;

fig. 3 is an enlarged schematic view of a portion a in fig. 2.

Reference numerals: 1. a spherical core; 11. a straight pipe section; 111. an oil receiving groove; 112. an oil absorption pad; 12. a ball tube section;

2. an inner sleeve; 21. an inner tube core;

3. an outer sleeve; 31. an outer tube core; 311. a tightening member; 312. a fixing ring; 313. mounting grooves; 314. a spring member; 32. and (4) a ring table.

Detailed Description

The present application is described in further detail below with reference to the accompanying drawings.

Please refer to fig. 1 to 3, which are illustrations of a leak-proof connection structure for a hose disclosed in an embodiment of the present application, the leak-proof connection structure includes a spherical core 1, the spherical core 1 includes a straight pipe section 11, one end of the straight pipe section 11 is fixedly connected with a spherical pipe section 12, the spherical pipe section 12 is a sphere with a center provided with a through hole, the sphere diameter of the spherical pipe section 12 is larger than the outer diameter of the straight pipe section 11, the leak-proof connection structure further includes an inner sleeve 2 and an outer sleeve 3, the inner sleeve 2 is provided with an external thread, the outer sleeve 3 is provided with an internal thread, the inner sleeve 2 is fixedly connected with an inner pipe core 21, the inner pipe core 21 is a right triangle revolving ring with a hypotenuse being an arc, the outer pipe core 31 is nested inside the outer sleeve 3, the outer pipe core 31 is in a revolving ring shape with a right triangle with a hypotenuse being an arc, and the central angles of the arc hypotenuse of the sections of the outer pipe core 31 and the inner pipe core 21 are both smaller than one half of the central angle of the arc-shaped outside arc-shaped central angle of the cross section of the spherical pipe section 12.

Specifically, the outer sleeve 3 is in threaded connection with the inner sleeve 2, the spherical core 1 is sleeved in the outer sleeve 3 and the inner sleeve 2, the arc surfaces of the outer sleeve core 31 and the inner tube core 21 face the spherical tube section 12, and the outer sleeve 3 and the inner sleeve 2 which are in threaded connection are fastened at two ends of the spherical tube section 12.

Therefore, the hose is sleeved on the spherical core 1, the hose is clamped outside the spherical pipe section 12 through expanding the inner diameter of the spherical pipe section 12, the outer pipe core 31 and the inner pipe core 21 are attached to the outer side of the hose on the spherical pipe section 12 through the cambered surface of the outer pipe core, and the outer pipe core 31 and the inner pipe core 21 are clamped on the spherical pipe section 12 through the outer sleeve 3 and the inner sleeve 2 which are in threaded connection.

The outer tube core 31 and the inner tube core 21 clamp the hose at two positions, so that the possibility of the hose falling off under high pressure is reduced, furthermore, the clamping position of the inner tube core 21 is a hose port part, and when the hose falls off, the clamping force of the inner tube core 21 and the outward expansion force of the hose need to be overcome, so that the possibility of the hose falling off under high pressure is reduced.

In some feasible manners, the outer diameter of the straight pipe section 11 is the inner diameter of a hose, the inner diameter of the through hole of the bulb section 12 is the same as the inner diameter of the straight pipe section 11, the inner side of one end of the outer sleeve 3 close to the inner sleeve 2 is expanded to form an annular groove, the outer tube core 31 is embedded in the annular groove, the inner side of the annular groove is provided with a thread, the inner side of one end of the inner sleeve 2 close to the outer sleeve 3 is expanded to form an annular groove, the inner tube core 21 is embedded in the annular groove, the end surface of the inner tube core 21 is flush with the end surface of the inner sleeve 2, and the inner sleeve 2 is provided with an external thread. The outer tube core 31 and the inner tube core 21 are both annular revolution bodies, and the cross section of each revolution body is in a right-angle triangle shape with the bevel edge being an arc surface. Because the ball pipe section 12 is a ball with a through hole arranged at the center, the cross section of the ball pipe section 12 comprises two symmetrical circular arcs, the central angle of the outer arc of the cross section of the ball pipe section 12 is the central angle of one of the circular arcs, and the central angle of the arc bevel edge of the cross section of the outer pipe core 31 and the inner pipe core 21 is smaller than the central angle of the outer arc of the cross section of the ball pipe section 12, so that the outer pipe core 31 and the inner pipe core 21 are sleeved on the ball pipe section 12 and are fixed without end face fitting and affecting fastening.

The one end mirror symmetry that interior sleeve pipe 2 kept away from outer tube 3 has another group to interior sleeve pipe 2, outer tube 3, interior tube core 21, outer tube core 31 and globular core 1 to two hose docks are convenient for, and the one end that outer tube 3 was kept away from to interior sleeve pipe 2 also fixed connection screwed pipe, so that hose and equipment pipeline mouth etc. are connected.

Referring to fig. 2, an outer tube core 31 is rotatably nested in an outer tube 3, a ring platform 32 is disposed in the outer tube 3, and an end of the outer tube core 31 away from the inner tube 2 is attached to an end surface of the ring platform 32.

It will be appreciated that the provision of the outer tubular core 31 rotatably mounted within the outer sleeve 3 reduces the likelihood of damage to the hose by rotation of the outer tubular core 31 as the outer sleeve 3 is rotated.

Further, the outer core 31 includes N fastening pieces 311, N2, and a fixing ring 312, and the fastening pieces 311 are hinged inside the fixing ring 312.

On the whole, the tightening piece 311 is hinged to the fixing ring 312, when the hose tends to be loosened, the hose is loosened to drive one end, far away from the inner sleeve 2, of the tightening piece 311 to move towards one end, far away from the inner sleeve 2, and the tightening piece 311 rotates to enable one end, close to the inner sleeve 2, of the tightening piece 311 to rotate inwards to press the hose tightly and further clamp the hose.

Furthermore, the circumferential array of the N tightening members 311 is annular, and the included angle between the two ends of the tightening members 311 and the central connecting line of the circumferential array is less than 360 degrees/N.

It should be appreciated that by arranging the ends of the tightener members 311 at an angle less than 360/N from the line connecting the centers of the circumferential arrays, a gap is formed between adjacent tightener members 311, reducing interference when the tightener members 311 are rotated.

Further, the fixing ring 312 has an installation slot 313 corresponding to the inner side of the tightening element 311, and the tightening element 311 is hinged in the installation slot 313.

It will be appreciated that by providing mounting slots 313, mounting of the take up member 311 is facilitated.

Further, referring to fig. 3, one end of the mounting slot 313 penetrates through the end surface of the fixing ring 312, and a spring element 314 is disposed between the tightening element 311 and the surface of the mounting slot 313 adjacent to the non-penetrating end.

It will be appreciated that the support of the takeup member 311 by the spring member 314 allows the takeup member 311 to flare to facilitate hose installation.

Further, the spring element 314 is a spring plate bent in a V-shape.

It will be appreciated that the provision of a V-bend spring leaf facilitates installation.

In some possible ways, the end of the outer sleeve 3 near the inner sleeve 2 is expanded radially, and the end of the outer sleeve 3 remote from the inner sleeve 2 forms a ring platform 32. The fixed ring 312 ring, fixed ring 312 is inboard to be seted up rectangle mounting groove 313, and mounting groove 313 is for running through the end at fixed ring 312 both ends one end, and the other end is the blind end, and mounting groove 313 blind end one side fixed mounting has spring part 314, and the rectangular channel has all been seted up to mounting groove 313 both sides, and this rectangular channel runs through fixed ring 312 inboard, and the rotation axis of fastening piece 311 both sides fixed connection rotation axis, the rotation axis correspondence is installed in this rectangular channel.

As a specific embodiment of the application for providing a leakproof connection structure for the hose, an oil receiving groove 111 is formed on the outer side of the straight pipe section 11, and an oil absorption pad 112 is arranged in the oil receiving groove 111.

It should be understood that when the extracting fluid flows in the hose under high pressure, the extracting fluid enters between the hose and the straight pipe section 11 along the wall of the hose, and the oil absorption pad 112 is arranged on the straight pipe section 11, so that part of the extracting fluid is absorbed by the oil absorption pad 112, and the influence of the extracting fluid on the friction force between the wall of the hose and the outer side wall of the spherical core 1 is reduced.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A hose leak-proof type connection structure, characterized by comprising:

the spherical core (1) comprises a straight pipe section (11), one end of the straight pipe section (11) is fixedly connected with a spherical pipe section (12), and the spherical diameter of the spherical pipe section (12) is larger than the outer diameter of the straight pipe section (11);

the inner sleeve (2), the said inner sleeve (2) has external screw thread;

the inner pipe core (21) is a right-angled triangle slewing ring with an arc-shaped bevel edge, and the inner pipe core (21) is axially and fixedly nested on the inner side of the inner sleeve (2);

an outer sleeve (3), wherein the outer sleeve (3) is provided with an internal thread;

the outer tube core (31), the said outer tube core (31) is a right-angled triangle revolving ring with arc-shaped hypotenuse, the said outer tube core (31) nests in the said outer tube (3) inboard;

the central angles of the arc-shaped inclined edges of the sections of the outer tube core (31) and the inner tube core (21) are smaller than one half of the central angle of the arc-shaped inclined edge of the outer side of the cross section of the ball tube section (12).

2. The leak-proof connection structure of a hose as claimed in claim 1, wherein: the outer tube core (31) is rotatably nested in the outer tube (3), a ring table (32) is arranged in the outer tube (3), and one end, far away from the inner tube (2), of the outer tube core (31) is attached to the end face of the ring table (32).

3. The leak-proof connection structure of a hose as claimed in claim 2, wherein: the outer tube core (31) comprises N tightening pieces (311), wherein N is greater than 2, and the outer tube core further comprises a fixing ring (312), and the tightening pieces (311) are hinged to the inner side of the fixing ring (312).

4. A hose leak-proof type connecting structure according to claim 3, wherein: the N tightening pieces (311) are arranged in a circular array, and the included angle between the two ends of each tightening piece (311) and the central connecting line of the circular array is smaller than 360 degrees/N.

5. The leak-proof connection structure of a hose as claimed in claim 4, wherein: the fixing ring (312) is provided with a mounting groove (313) corresponding to the inner side of the tightening piece (311), and the tightening piece (311) is hinged in the mounting groove (313).

6. The leak-proof connection structure of a hose as claimed in claim 5, wherein: one end of the mounting groove (313) penetrates through the end face of the fixing ring (312), and a spring part (314) is arranged between the fastening part (311) and the surface, close to the non-penetrating end of the mounting groove (313).

7. A hose leak-proof type connecting structure according to claim 6, wherein: the spring piece (314) is a V-shaped bent spring piece.

8. A hose leak-proof connection structure according to any one of claims 1 to 7, wherein: an oil receiving groove (111) is formed in the outer side of the straight pipe section (11), and an oil absorption pad (112) is arranged in the oil receiving groove (111).