阅读说明：本技术 止脱圈、连接组件、止脱组件和连接管件 (Anti-slip ring, connecting assembly, anti-slip assembly and connecting pipe fitting ) 是由 王敬玉 于 2019-10-10 设计创作，主要内容包括：本发明公开了一种止脱圈、连接组件、止脱组件和连接管件。该止脱圈和连接组件配合使用以构成该止脱组件,该连接管件中采用该止脱组件进行连接。其中,止脱圈为锥形筒状结构,其直径较大的一端为外端,直径较小的一端为内端,内端设置有止脱齿；内端的孔径大小根据被连接件的外径大小设置,止脱圈在正常状态下,内端的孔径大于或等于被连接件的外径；止脱圈在受到轴向挤压时,内端的孔径小于被连接件的外径。本发明的核心在于通过止脱圈的径向变形,能够实现良好的止脱效果,并且,其连接操作简便易行。(The invention discloses a slip-off prevention ring, a connecting assembly, a slip-off prevention assembly and a connecting pipe fitting. The anti-slip ring and the connecting assembly are matched for use to form the anti-slip assembly, and the connecting pipe fitting is connected through the anti-slip assembly. The anti-slip ring is of a conical cylindrical structure, the end with the larger diameter is an outer end, the end with the smaller diameter is an inner end, and anti-slip teeth are arranged at the inner end; the size of the inner end aperture is set according to the size of the outer diameter of the connected piece, and the inner end aperture is larger than or equal to the outer diameter of the connected piece under the normal state of the anti-slip ring; when the anti-slip ring is axially extruded, the bore diameter of the inner end is smaller than the outer diameter of the connected piece. The core of the invention is that good anti-slip effect can be realized through the radial deformation of the anti-slip ring, and the connection operation is simple and easy.)

1. The anti-slip ring is characterized in that the anti-slip ring is of a conical cylindrical structure, one end with a larger diameter is an outer end, the other end with a smaller diameter is an inner end, and anti-slip teeth (31) are arranged at the inner end;

the inner end is provided with an aperture according to the outer diameter of the connected piece, and the aperture of the inner end is larger than or equal to the outer diameter of the connected piece under the normal state of the anti-slip ring; when the anti-slip ring is axially extruded, the aperture of the inner end is smaller than the outer diameter of the connected piece.

2. The retaining ring according to claim 1, characterized in that the outer end is provided with a push flap (32).

3. The anti-slip ring according to claim 2, wherein the anti-slip teeth (31) are provided in plurality and are arranged in sequence along the circumferential direction of the inner end;

and/or the push folding edge (32) is an annular folding edge, and the plane of the annular folding edge is perpendicular to the central axis of the slip-proof ring.

4. A connection assembly for use with a retaining ring according to any one of claims 1 to 3, wherein:

the connecting assembly comprises a connecting pipe (1) and a gland (4);

a slip-off preventing shoulder (13) is arranged in the connecting pipe (1), and the aperture of the slip-off preventing shoulder (13) is larger than the diameter of the inner end of the slip-off preventing ring, smaller than the diameter of the outer end of the slip-off preventing ring and larger than or equal to the outer diameter of a connected piece;

gland (4) with the connection can be dismantled to the tip of connecting pipe (1), gland (4) can stretch into will in connecting pipe (1) the outer end extrusion is fixed on stopping taking off shoulder (13).

5. A connection assembly according to claim 4, characterized by a threaded connection between the connection tube (1) and the gland (4);

and/or the bore diameter of the anti-slip shoulder (13) is larger than or equal to the inner diameter of the gland (4);

and/or a first clamping structure for wrenching and screwing a wrench is arranged on the outer side of the connecting pipe (1);

and/or a second clamping structure for wrenching and screwing a wrench is arranged on the outer side of the gland (4);

and/or the two ends of the connecting pipe (1) are respectively provided with the anti-falling shoulder (13) and the gland (4).

6. A slip-stop assembly, characterized by comprising a slip-stop collar (3) and a connecting assembly, the slip-stop collar (3) being a slip-stop collar according to any one of claims 1 to 3 and the connecting assembly being a connecting assembly according to any one of claims 4 to 5.

7. The anti-drop assembly according to claim 6, further comprising a sealing ring (2), a sealing groove (12) for receiving said sealing ring (2) being provided in a connecting tube (1) in said assembly;

after the sealing ring (2), the anti-slip ring (3) and the end cover (4) are sequentially arranged along the axial direction of the connecting pipe (1) from inside to outside.

8. The anti-slip assembly according to claim 7, wherein said sealing groove (12) is a conical groove, wherein:

the aperture of one end of the conical groove, which is far away from the end cover (14), is larger, and a limiting boss (16) is arranged;

the hole diameter of one end of the conical groove, which is close to the end cover (14), is smaller, and the conical groove is adjacent to the anti-falling shoulder (13);

the axial length of the tapered groove is larger than that of the sealing ring (2).

9. The anti-drop assembly according to claim 8, characterized in that the inner end of the sealing ring (2) is provided with a V-groove (22).

10. The anti-slip assembly according to any one of claims 7 to 9, wherein the gland (4), the anti-slip ring (3), the anti-slip shoulder (13), the sealing groove (12) and the sealing ring (2) are respectively provided at both ends of the connecting tube (1).

11. A connecting tube comprising a first connector and a second connector for the delivery of a fluid, wherein the first connector and the second connector are connected by a release stop assembly according to claim 10.

Technical Field

The invention relates to the technical field of pipeline connection, in particular to a slip-off prevention ring, a connecting assembly matched with the slip-off prevention ring, a slip-off prevention assembly composed of the slip-off prevention ring and the connecting assembly, and a connecting pipe fitting provided with the slip-off prevention assembly.

Background

Because the fluid in the pipeline has certain pressure, the pressure can cause certain test to the effective connection of the pipe fittings, and in addition, the effective connection of the pipe fittings also needs to consider the environment outside the pipe fittings, such as the expansion caused by heat and the contraction caused by cold of the exposed pipe fittings, the foundation sinking of the buried pipe fittings and other factors. Therefore, a slip-resistant connection is necessary.

Disclosure of Invention

In view of the above, the present invention provides a slip-off preventing ring, a connecting assembly adapted to the slip-off preventing ring, a slip-off preventing assembly composed of the slip-off preventing ring and the connecting assembly, and a connecting pipe fitting provided with the slip-off preventing assembly, which are easy and convenient to connect, and can achieve good slip-off preventing effect and sealing effect.

In order to achieve the purpose, the invention provides the following technical scheme:

the anti-slip ring is of a conical cylindrical structure, one end with the larger diameter is an outer end, the other end with the smaller diameter is an inner end, and anti-slip teeth are arranged at the inner end;

the inner end is provided with an aperture according to the outer diameter of the connected piece, and the aperture of the inner end is larger than or equal to the outer diameter of the connected piece under the normal state of the anti-slip ring; when the anti-slip ring is axially extruded, the aperture of the inner end is smaller than the outer diameter of the connected piece.

Preferably, in the above slip-off preventing ring, the outer end is provided with a pressing flange.

Preferably, in the above anti-slip ring, the anti-slip teeth are provided in plurality and arranged in sequence along the circumferential direction of the inner end.

Preferably, in the above anti-slip ring, the pressing flange is an annular flange, and a plane of the annular flange is perpendicular to a central axis of the anti-slip ring.

A connection assembly for use with a retaining ring as hereinbefore described, wherein:

the connecting assembly comprises a connecting pipe and a gland;

a slip-off preventing shoulder is arranged in the connecting pipe, the aperture of the slip-off preventing shoulder is larger than the diameter of the inner end of the slip-off preventing ring, smaller than the diameter of the outer end of the slip-off preventing ring and larger than or equal to the outer diameter of the connected piece;

the gland with the connection can be dismantled to the tip of connecting pipe, the gland can stretch into will in the connecting pipe the outer end extrusion of only taking off the circle is fixed on the only takes off shoulder.

Preferably, in the above-described connection assembly, the connection pipe and the gland are threadedly connected.

Preferably, in the above-described connection assembly, a bore diameter of the slip-off shoulder is greater than or equal to an inner diameter of the gland.

Preferably, in the above-mentioned connection assembly, a first clamping structure for wrenching a wrench is provided on an outer side of the connection pipe.

Preferably, in the above-mentioned connection assembly, a second clamping structure for wrenching a wrench is provided on an outer side of the gland.

Preferably, in the above-described connection assembly, the connection pipe is provided at both ends thereof with the drop-off prevention shoulder and the gland, respectively.

A slip-stop assembly comprising a slip-stop ring as hereinbefore described and a connection assembly as hereinbefore described.

Preferably, in the above anti-drop assembly, a sealing ring is further included, and a sealing groove for accommodating the sealing ring is provided in a connecting pipe in the connecting assembly;

after the sealing ring, the anti-slip ring and the end cover are sequentially arranged along the axial direction of the connecting pipe from inside to outside.

Preferably, in the above-mentioned drop-out prevention assembly, the sealing groove is a tapered groove, wherein:

the aperture of one end of the conical groove, which is far away from the end cover, is larger, and a limiting boss is arranged;

the aperture of one end, close to the end cover, of the conical groove is smaller and is adjacent to the anti-falling shoulder;

the axial length of the tapered groove is greater than that of the sealing ring.

Preferably, in the above-mentioned drop-out prevention assembly, the inner end of the seal ring is provided with a V-shaped groove.

Preferably, in the above anti-slip assembly, the gland, the anti-slip ring, the anti-slip shoulder, the sealing groove, and the sealing ring are respectively provided at both ends of the connecting pipe.

A connecting tube comprising a first and a second connector for conveying a fluid, said first and second connectors being connected by a release stop assembly as hereinbefore described.

When the anti-drop ring, the connecting component and the anti-drop component formed by the anti-drop ring and the connecting component are used, when the connected piece penetrates through the hollow structure of the gland and the cavity of the connecting pipe, the connected piece is tightly connected with the hollow structure of the gland or the cavity of the connecting pipe, or is tightly connected with the hollow structure of the gland and the cavity of the connecting pipe simultaneously, so that the connecting purpose is realized. Then, after the gland is fixedly connected with the connecting pipe in place, the anti-slip ring can be extruded to prevent the connected piece from slipping. The process of preventing falling off is as follows:

along with the gland gradually deepens into the connecting pipe and extrudes the anti-slip ring, the anti-slip ring gradually generates radial deformation. The anti-slip ring is in a conical cylindrical ring structure in the initial state and then gradually deformed into a ring with a plane structure, so that the aperture of the inner end (namely the end where the anti-slip teeth are located) of the anti-slip ring is gradually reduced. At the moment, if the connected piece is a flexible pipe fitting, the anti-disengaging teeth can penetrate into the outer side wall of the flexible pipe fitting; if the connected piece is a rigid pipe fitting, the anti-slip teeth extrude the pipe fitting to produce great friction force, so that the effects of clamping and anti-slip are achieved.

According to the technical scheme, the anti-slip ring, the connecting assembly and the anti-slip assembly provided by the invention can realize a good anti-slip effect through radial deformation of the anti-slip ring.

Furthermore, in the anti-drop assembly provided by the invention, a good sealing effect can be realized through the sealing ring and the sealing groove.

In summary, the connection pipe fitting provided by the invention adopts the anti-drop assembly, so that good anti-drop effect and sealing effect can be realized, and the connection operation is simple and easy.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a three-axis isometric view of a run-on stop collar provided in a first embodiment of the invention;

FIG. 2 is a schematic cross-sectional view of a first embodiment of a retaining ring of the present invention in two different states;

FIG. 3 is an exploded view of the assembly of a slip stop assembly provided in a third embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of a slip-stop assembly provided in a third embodiment of the present invention;

FIG. 5 is a partial cross-sectional view of a connecting tube provided in a third embodiment of the present invention;

FIG. 6 is a partial cross-sectional view of a seal ring provided in a third embodiment of the present invention;

fig. 7 is a schematic structural diagram of a sealing ring provided in a third embodiment of the present invention in two different states.

Wherein:

1-connecting pipe, 2-sealing ring, 3-anti-slip ring, 4-gland,

11-cavity, 12-sealing groove, 13-anti-slip shoulder, 14-thread,

21-outer side wall, 22-V-shaped groove,

31-anti-slip teeth and 32-push folding edges.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

First embodiment

Referring to fig. 1 and 2, fig. 1 is a three-axis isometric view of a run-flat ring provided in a first embodiment of the present invention; fig. 2 is a schematic cross-sectional structure view of the retaining ring provided in the first embodiment of the present invention in two different states.

The first embodiment of the present invention provides a slip-off preventing ring, which has a conical cylindrical structure, wherein the end with the larger diameter is the outer end, and the end with the smaller diameter is the inner end, and the inner end is provided with slip-off preventing teeth 31.

Wherein, the inner end aperture size of the anti-slip ring is arranged according to the outer diameter size of the connected piece. Under the normal state, the inner end aperture of the anti-slip ring is larger than or equal to the outer diameter of the connected piece; when the anti-slip ring is axially extruded, the bore diameter of the inner end of the anti-slip ring is smaller than the outer diameter of the connected piece.

The material of the retaining ring is required to have a certain rigidity and deformability when selected, and the retaining ring can be made of, for example, stainless steel, aluminum, copper, hard plastic, or the like.

Preferably, the inner end of the anti-slip ring is provided with a plurality of anti-slip teeth 31, and the plurality of anti-slip teeth 31 are sequentially arranged along the circumferential direction of the inner end of the anti-slip ring;

preferably, the outer end of the anti-slip ring is further provided with a pushing flange 32, and the pushing flange 32 is an annular flange, and the plane of the annular flange is perpendicular to the central axis of the anti-slip ring.

Second embodiment

A second embodiment of the invention provides a coupling assembly for use with the anti-slip ring provided in the first embodiment of the invention.

Specifically, referring to fig. 3 to 5, a connecting assembly according to a second embodiment of the present invention includes a connecting tube 1 and a gland 4. Wherein:

a cavity 11 for accommodating a connected piece to pass through is arranged in the connecting pipe 1, and a falling-off prevention shoulder 13 is arranged in the cavity; the aperture of the anti-slip shoulder 13 is larger than the diameter of the inner end of the anti-slip ring 3 and smaller than the diameter of the outer end of the anti-slip ring so as to match the gland 4 to axially extrude the anti-slip ring 3; and, the bore diameter of the slip-off preventing shoulder 13 is greater than or equal to the outer diameter of the connected member to accommodate the connected member to pass through;

the gland 4 is a hollow structure through which a connecting piece can pass, and the gland 4 is detachably connected with the end part of the connecting pipe 1; the gland 4 can be inserted into the connection pipe 1 to press and fix the outer end of the slip-off prevention ring 3 to the slip-off prevention shoulder 13.

When the outer end of the anti-slip ring 3 is not pressed by the gland 4, the state can be seen as A1 in FIG. 2; as the outer end of the anti-slip ring 3 is pressed by the gland 4 and approaches the anti-slip shoulder 13, the anti-slip shoulder 13 presses the middle section of the anti-slip ring 3 outwards, at this time, the anti-slip ring 3 deforms radially due to the axial pressing force, the bore diameter of the inner end of the anti-slip ring becomes smaller, the bore diameter of the outer end of the anti-slip ring becomes larger, so that the anti-slip teeth 31 press the connected piece in the connecting pipe 1 to achieve the anti-slip effect, and at this time, the state of the anti-slip ring 3 can be referred to as a2 in fig. 2.

During the use, when being passed hollow structure of gland 4 and cavity 11 of connecting pipe 1 by the connecting piece, either with the hollow structure zonulae occludens of gland 4, or with cavity 11 zonulae occludens of connecting pipe 1, or simultaneously with the hollow structure of gland 4 and cavity 11 zonulae occludens of connecting pipe 1 to realize the connection purpose. Then, after the gland 4 is fixedly connected with the connecting pipe 1 in place, the anti-slip ring 3 can be extruded to prevent the connected piece from slipping off. The process of preventing falling off is as follows:

as the gland 4 gradually goes deep into the connecting pipe 1 and extrudes the anti-slip ring 3, the anti-slip ring 3 gradually deforms in the radial direction. The anti-slip ring 3 is initially in a conical cylindrical ring structure (see a1 in fig. 2), and then is gradually deformed into a ring in a planar structure (see a2 in fig. 2), so that the inner end (i.e., the end where the anti-slip teeth 31 are located) of the anti-slip ring 3 has a gradually reduced bore diameter. At this time, if the connected piece is a flexible pipe, the slip-preventing teeth 31 will pierce the outer side wall of the flexible pipe; if the connected piece is a rigid pipe, the extrusion through the anti-slip teeth 31 can also produce great friction force, thereby achieving the effects of clamping and anti-slip.

Specifically, the bore diameter of the retaining shoulder 13 is greater than or equal to the inner diameter of the gland 4.

Specifically, the outer side of the connecting pipe 1 is provided with a first clamping structure for wrenching a wrench, preferably a planar structure arranged on two sides of the outer wall of the connecting pipe 1; the outer side of the gland 4 is provided with a second clamping structure for wrenching with a wrench, preferably a hexagonal structure (similar to the wrenching end structure of a bolt) provided at the outer end of the gland 4.

Specifically, both ends of the connection pipe 1 are provided with the above-described falling-off prevention shoulder 13 and the gland 4, respectively.

Specifically, the connection pipe 1 and the gland 4 are connected by screw. But not limited thereto, the connection between the connecting tube 1 and the gland 4 may be performed by bolts, screws or other connection structures, and the invention is not particularly limited.

Furthermore, a relief groove 15 for accommodating the anti-slip ring which is radially deformed after being axially pressed is further provided between the anti-slip shoulder 13 and the thread tooth 14.

Third embodiment

Referring to fig. 3 to 7, fig. 3 is an exploded view of an assembly of a slip stop assembly according to a third embodiment of the present invention; FIG. 4 is a partial cross-sectional view of a slip-stop assembly provided in a third embodiment of the present invention; FIG. 5 is a partial cross-sectional view of a connecting tube provided in a third embodiment of the present invention; FIG. 6 is a partial cross-sectional view of a seal ring provided in a third embodiment of the present invention; fig. 7 is a schematic structural diagram of a sealing ring provided in a third embodiment of the present invention in two different states.

A third embodiment of the present invention provides a slip-stop assembly comprising a slip-stop collar as provided in the first embodiment of the present invention and a connecting assembly as provided in the second embodiment of the present invention.

Further, the anti-drop assembly further comprises a sealing ring 2, and a sealing groove 12 for accommodating the sealing ring 2 is arranged in the connecting pipe 1 in the connecting assembly. After assembly, the sealing ring 2, the anti-slip ring and the end cover 4 are sequentially arranged from inside to outside along the axial direction of the connecting pipe 1.

Further, the seal groove 12 is a tapered groove (having a substantially wedge-shaped cross section), in which:

the aperture of one end of the conical groove far away from the end cover 14 is larger, and a limiting boss 16 is arranged;

the aperture of one end of the conical groove close to the end cover 14 is smaller and is adjacent to the anti-falling shoulder 13;

the axial length of the conical groove is greater than the axial length of the sealing ring 2, so that the sealing ring 2 has an axial displacement space greater than zero in the sealing groove 12.

Further, as shown in fig. 4, 6 and 7, the inner end of the seal ring 2 is provided with a V-groove 22.

Specifically, the outer wall of the sealing ring 2 can be attached to the bottom of the sealing groove 12, that is, the contact surface of the sealing ring 2 and the sealing groove 12 is similar in shape, and is also tapered (or called as wedge).

When in use:

the connected piece is inserted into the anti-drop assembly, the sealing part of the sealing ring 2 can generate certain deformation, and the deformation is easier due to the V-shaped groove 22;

in an initial state (or a normal state without external force), the inner diameter of the anti-slip ring 3 is larger than the outer diameter of the connected piece, and the extending direction of the anti-slip teeth 31 is close to the inserting direction of the connected piece, so that the connected piece can be easily inserted;

the gland 4 is screwed, the gland 4 forces the anti-slip ring 3 to deform (the state is changed from A1 to A2 in fig. 2), and the deformed anti-slip teeth 31 exert clamping force on the outer wall of the connected piece, so that the connected piece can be prevented from outward displacement, namely, the anti-slip effect is realized;

after sealing washer 2 compressed for a long time and lost elasticity, can break away from outside to the anti-component gradually by the connecting piece (if being the pipe fitting by the connecting piece, then can receive the outside pressure that the fluid was applyed in the pipeline) to outwards produce axial displacement (V type groove on sealing washer 2 can play the effect that increases the pressurized area in this time), at this moment under the effect of toper seal groove, sealing washer 2 produces radial shrink, thereby can avoid sealing washer 2 to lead to sealed the inefficacy because of losing elasticity.

Specifically, the seal ring 2 is preferably made of rubber.

Specifically, in the above-mentioned anti-drop assembly, a gland 4, an anti-drop ring, an anti-drop shoulder 13, a sealing groove 12 and a sealing ring 2 may be respectively disposed at two ends of the connecting pipe 1, so that two connected pieces are respectively and sealingly connected at two ends of the anti-drop assembly through the anti-drop assembly, and an anti-drop effect is respectively achieved.

Alternatively, the gland 4, the anti-slip ring, the anti-slip shoulder 13, the sealing groove 12 and the sealing ring 2 may be provided only at one end of the connection pipe 1 to hermetically connect the connection pipe 1 and the connected member and achieve the anti-slip effect.

It should be noted that the anti-drop ring, the connecting assembly and the anti-drop assembly provided by the invention can be used for connecting straight pipes, connecting elbows, tees, reducing pipes and the like, and can also be used for connecting structures such as valves, pipes and the like. In addition, the anti-drop ring, the connecting assembly and the anti-drop assembly provided by the invention have very good anti-drop effect and sealing effect when the fluid conveying pipe fitting is connected. However, the invention is not only suitable for connecting fluid conveying pipes, but also suitable for the anti-falling connection and sealing connection of other connecting pieces, such as solid cables and the like. The present invention does not specifically limit the structural dimensions of the connected member.

Fifth embodiment

The fifth embodiment of the invention provides a connecting pipe fitting, which comprises a first connecting pipe and a second connecting pipe for conveying fluid, wherein the first connecting pipe and the second connecting pipe are connected through a slip prevention assembly provided in the fourth embodiment of the invention. The first adapter and the second adapter are the above-mentioned connected members.

Specifically, the first adapter tube and the second adapter tube may be flexible tube members such as a PE (polyethylene) tube or a PVC (Polyvinyl chloride) tube, or connected members of other structural dimensions.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.