阅读说明：本技术 一种自锚式管道接口结构 (Self-anchored pipeline joint structure ) 是由 张学来 王浩 刘长森 杨传花 陈同玉 李超刚 于 2021-01-12 设计创作，主要内容包括：一种自锚式管道接口结构,包括管道本体,管道本体一端为承口端,相接管道的插口端插入该承口端内,自承口端的端面起依次设置有圆珠安装口、圆珠槽、定位槽,圆珠槽内装有圆珠,相接管道的插口端外壁面设有刚性环,圆珠位于圆珠槽外侧槽壁与刚性环左侧之间的容腔内并能够与刚性环左侧角部抵接,定位槽位于刚性环右侧,内部设置有密封胶圈,承口端端部与圆珠安装口相对的下侧对应设置有拆卸口,圆珠可通过该拆卸口卸载,刚性环焊接在相接管道的插口端外壁面,待焊接部位优选开有能够容纳焊料的倒角或焊接槽,优选在刚性环左侧角部开出分力槽。本发明进一步简化了操作,畅通了圆珠滑落通道,减少了装配后的受力集中,全面提高了施工效率和自锁防脱密封效果。(The utility model provides a from anchor pipeline interface structure, including the pipeline body, pipeline body one end is the female end, the socket end of pipeline that meets inserts in this female end, the ball installing port has set gradually from the terminal surface of female end, the ball groove, the constant head tank, the ball is equipped with the ball in the ball groove, the socket end outer wall of pipeline that meets is equipped with the rigidity ring, the ball is located the appearance intracavity between ball groove outside cell wall and the rigidity ring left side and can with rigidity ring left side bight butt, the constant head tank is located the rigidity ring right side, inside is provided with the sealed rubber ring, the socket end tip corresponds with the downside that the ball installing port is relative and is provided with the dismantlement mouth, the uninstallation of this dismantlement mouth of ball accessible, the rigidity ring welding is in the socket end outer wall of pipeline that meets, treat that the welding position preferred chamfer or the welding groove that has can hold the solder that opens, preferred is opened the component. The invention further simplifies the operation, unblocks the ball sliding channel, reduces the stress concentration after assembly, and comprehensively improves the construction efficiency and the self-locking anti-falling sealing effect.)

1. The utility model provides a from anchor pipeline interface structure, includes pipeline body (7), pipeline body (7) one end is female end (1), and this female end (1) cooperatees with the socket end of the pipeline that meets, and the socket end of the pipeline that meets inserts in this female end (1), has set gradually ball installing port (2), ball groove, constant head tank (6) from the terminal surface of female end (1), ball (3) are equipped with in the ball groove, and the socket end outer wall of the pipeline that meets is equipped with rigidity ring (4), and the material is preferred iron or steel, and ball (3) are located the holding intracavity between ball groove outside cell wall and rigidity ring (4) left side and can with rigidity ring (4) left side bight butt, constant head tank (6) are located rigidity ring (4) right side, and inside is provided with rubber seal (5), its characterized in that: the end part of the female end (1) is correspondingly provided with a dismounting opening (8) at the lower side opposite to the ball mounting opening (2), and the ball (3) can be dismounted through the dismounting opening (8).

2. A self-anchoring pipe joint structure according to claim 1, wherein: the ball mounting port (2) and the dismounting port (8) are symmetrically arranged along the axis of the pipeline.

3. A self-anchoring pipe joint structure according to claim 1 or 2, wherein: the rigid ring (4) is fixedly connected with the outer wall surface of the socket end of the connected pipeline in a welding mode, and chamfers or welding grooves capable of containing at least part of welding materials are arranged at the left side and/or the right side of the rigid ring (4) to be welded.

4. A self-anchoring pipe joint structure according to claim 3, wherein: specifically, a chamfer (41) capable of accommodating at least a part of solder is arranged at a position to be welded on the left side of the rigid ring (4).

5. A self-anchoring pipe joint structure according to claim 3, wherein: specifically, a chamfer (41) capable of accommodating at least a part of solder is arranged at the position to be welded on the right side of the rigid ring (4).

6. A self-anchoring pipe joint structure according to any one of claims 1 to 5, wherein: a force component groove (42) is formed at the left corner of the rigid ring (4), and the ball (3) and the left corner of the rigid ring (4) in a tensioned state are converted into two-point contact through single-point contact.

7. A self-anchoring pipe joint structure according to claim 6, wherein: the component force groove (42) is a square groove, and two abutting points of the ball (3) and the component force groove (42) in a tensioned state are a first abutting point (421) and a second abutting point (422) respectively.

8. A self-anchoring pipe joint structure according to claim 7, wherein: the vertical wall surface 423 of the force component groove 42 has a height dimension equal to a length dimension of the horizontal wall surface 424.

9. A self-anchoring pipe joint structure according to claim 7, wherein: the vertical wall surface (423) of the force component groove (42) has a height dimension that is not equal to the length dimension of the horizontal wall surface (424), and the vertical wall surface (423) has a height dimension that is greater than the length dimension of the horizontal wall surface (424).

10. A self-anchoring pipe joint structure according to claim 1, wherein: the ball (3) is a steel ball, a full circle is arranged along the ball groove, and the disassembly port (8) is a disassembly port with a boss.

Technical Field

The invention relates to the technical field of pipeline interface equipment, in particular to a self-anchored pipeline interface structure which is suitable for the interface connection of a cast pipe pipeline.

Background

The long-distance water pipe adopted by engineering industries such as water power, electric power, municipal administration and the like is often required to overcome various complex ground conditions in application, when a connector needs to bear large tensile force, certain requirements are provided for the connection mode of a pipe connector, the connection mode between a socket and a socket is tightly extruded only by a sealing ring in the most current market, the mode bears small tensile force and is easy to separate, and the external self-anchoring type connector connected through a flange is complex in structure installation, has certain operation difficulty and bears small tensile force.

In order to meet the anti-drop requirement of the pipeline when the pipeline needs to bear large tensile force in special terrain, domestic manufacturers including the applicant gradually begin to develop a ball self-locking pipeline interface structure and form related patent achievements, the patent achievements related to the ball self-locking pipeline interface structure, which are disclosed earlier in the Chinese patent gazette, such as the application number of 202010666487.2 and the Chinese patent application named as the 'cast pipe self-anchoring interface' (9-15 days in the publication date 2020), the principle of the patent is shown in the attached drawings 14 and 15, during construction, a cast pipe socket 1-5 of one cast pipe is inserted into a cast pipe socket 1-1 of another cast pipe, the inner end of a steel ball ring groove 1-6 is propped against through a retaining ring 1-3, a sealing ring 1-2 is extruded between the inner hole of the cast pipe socket 1-1 and the outer wall surface of the cast pipe socket 1-5, then, the steel balls 1-4 are loaded into the steel ball ring grooves 1-6 through the steel ball inlets 1-7, and the steel balls 1-4 and the stop rings 1-3 are positioned in the steel ball ring grooves 1-6, so that the self-locking of the two steel pipes is realized.

Although the ball self-locking type pipeline interface structure is more convenient to operate compared with a traditional locking structure, the anti-falling requirement under a tension working condition can be met to a great extent, but factors influencing construction efficiency are found in verification and construction, for example, in the structure of the cast pipe self-anchoring interface, steel balls 1-4 are loaded through steel ball inlets 1-7 positioned at the top ends of cast pipe sockets 1-1 and fall through gravity, if two cast pipes need to be unlocked due to installation problems in construction, the assembled cast pipes need to be rotated to enable the steel ball inlets to be positioned at the bottoms to take out the steel balls, at the moment, the cast pipes usually cannot be rotated or are very difficult to operate even if the cast pipes are allowed to rotate, and the condition is also met when workers select the wrong specification of the steel balls and need to take out and reassemble.

The other problems in construction are that the steel balls 1-4 are not smoothly installed and the stress of the joint ends of the cast tubes is concentrated under high tension, when the steel balls are loaded, if the axial levelness or radial parallelism of the two cast tubes is not adjusted, the steel ball sliding channel on the butt joint surface is likely to be locally narrow, at this time, because the stop rings 1-3 are welded on the outer wall of the socket, accumulated welding materials exist at the corners of the steel ball sliding channel, once the accumulated welding materials are locally too high, the smooth sliding of the steel balls is directly prevented, and the accumulated welding materials on the other sides of the stop rings 1-3 may prevent the end parts of the stop rings from being close to the vertical wall surfaces of the steel ball grooves 1-6 when the cast tube sockets 1-5 are just inserted into the cast tube sockets 1-1, so that the steel ball sliding channel is likely to be narrowed. In addition, the single-point interference between the steel balls 1-4 and the stop rings 1-3 can be not only a factor of unsmooth sliding channels of the steel balls, but also a reason of the problem of concentrated stress on the joint ends of the cast tubes, and the concentrated stress on the joint ends of the cast tubes can reduce the sealing effect of the sealing rings 1-2 because the outward extrusion force from the steel balls on the bell mouths 1-1 of the cast tubes is too large and the inward extrusion force from the steel balls on the sockets 1-5 of the cast tubes is too large.

Disclosure of Invention

The invention aims to provide a self-anchored pipeline interface structure, which aims to solve the problems in the background technology, further improve the functions of the self-anchored pipeline interface structure and improve the construction efficiency and the self-locking, anti-falling and sealing effects.

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

the utility model provides a from anchor pipeline interface structure, includes the pipeline body, pipeline body one end is the female end, and this female end cooperatees with the socket end of pipeline that meets, and the socket end of pipeline that meets inserts in this female end, has set gradually ball installing port, ball groove, constant head tank from the terminal surface of female end, the ball is equipped with the ball in the ball groove, and the socket end outer wall of pipeline that meets is equipped with the rigid ring, and the material is preferred iron or steel, and the ball is located the appearance intracavity between ball groove outside cell wall and the rigid ring left side and can with rigid ring left side bight butt, the constant head tank is located rigid ring right side, and inside is provided with the sealing rubber ring, female end portion with the downside correspondence that the ball installing port is relative is provided with dismantles the mouth, and the uninstallation of ball accessible should dismantle mouthful. Preferably, the bell end structure is arranged in the casting pipeline body in a reserved manner.

In the self-anchoring pipeline interface structure, the ball mounting port and the dismounting port are symmetrically arranged along the axis of the pipeline.

In the self-anchored pipeline interface structure, the rigid ring is fixedly connected with the outer wall surface of the socket end of the connected pipeline in a welding mode, and chamfers or welding grooves capable of containing at least part of welding materials are arranged at the left side and/or the right side of the rigid ring to be welded.

In the self-anchored pipeline interface structure, a chamfer capable of accommodating at least a part of solder is formed at a part to be welded on the left side of the rigid ring.

In the self-anchored pipeline interface structure, a chamfer capable of accommodating at least a part of solder is formed at a part to be welded on the right side of the rigid ring.

In the self-anchored pipeline joint structure, the left corner of the rigid ring is provided with the component force groove, and the ball is converted into double-point contact with the left corner of the rigid ring in a tensioned state through single-point contact.

Above-mentioned from anchor formula pipeline interface structure, the component force groove is square groove, and two butt joint points that ball and component force groove have under the taut state are first butt joint point and second butt joint point respectively.

In the self-anchored pipeline joint structure, the height dimension of the vertical wall surface of the component force groove is equal to the length dimension of the horizontal wall surface.

In the self-anchored pipeline interface structure, the height dimension of the vertical wall surface of the component force groove is not equal to the length dimension of the horizontal wall surface, and the height dimension of the vertical wall surface is greater than the length dimension of the horizontal wall surface.

Above-mentioned from anchor pipeline interface structure, the ball is the steel ball, sets up full round along the ball groove, dismantle the mouth and dismantle the mouth for taking the boss, wherein the big or small number of ball is selected according to pipeline body bore size.

In addition, the ball mounting port and the dismounting port can be fixed at the female port end in a welding mode.

Compared with the prior art, the invention has the beneficial effects that:

the self-anchored pipeline interface structure is more suitable for the interface connection of engineering pipelines such as cast pipe pipelines, has simple structure and convenient installation, can bear larger pulling force under complex working conditions, and reduces the construction operation difficulty to a greater extent compared with the traditional locking structure; furthermore, according to the self-anchored pipeline interface structure, the dismounting port is correspondingly arranged at the lower side of the end part of the female end, which is opposite to the ball mounting port, and the ball can be dismounted through the dismounting port, so that when mounting problems occur in construction, two cast pipes need to be unlocked, or when workers select wrong ball specifications to take out and reload, the assembled cast pipes do not need to be rotated, and only the balls need to be dismounted from the dismounting port; furthermore, the self-anchored pipeline interface structure of the invention prevents the situation that the solder in the ball containing cavity is locally accumulated too high and the situation that the right side of the rigid ring can not be close to the vertical wall surface of the ball groove when the socket of the casting pipe is just inserted into the bell of the casting pipe by arranging the chamfers or the welding grooves which can contain at least part of the solder at the left side and the right side of the rigid ring to be welded, thereby avoiding the local narrow situation which can occur in the ball sliding channel to the maximum extent and ensuring the smooth ball sliding channel; furthermore, the self-anchored pipeline interface structure of the invention converts the single-point abutting of the ball and the left corner of the rigid ring in a tensioned state into the double-point abutting by opening the component force groove at the left corner of the rigid ring, not only further optimizes the corner space of the ball containing cavity, but also reduces the stress concentration of the interface end of the cast pipe, and can enable the component of a part of force to be further close to the axial direction by optimizing the side length of the component force groove, thereby avoiding the reduction of the sealing effect of the sealing rubber ring because the socket of the cast pipe is subjected to overlarge outward extrusion force from the ball and the socket of the cast pipe is subjected to overlarge inward extrusion force from the ball.

Drawings

Fig. 1 is a schematic structural view of an upper half part of a pipe joint according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a lower half portion of a pipe joint according to embodiment 1 of the present invention;

fig. 3 is a schematic side view of a pipe joint according to embodiment 1 of the present invention;

fig. 4 is a schematic view of a rigid ring structure in a pipe joint according to embodiment 2 of the present invention;

fig. 5 is a partial structural schematic view of a pipe joint according to embodiment 2 of the present invention;

fig. 6 is a schematic view of a rigid ring structure in a pipe joint according to embodiment 3 of the present invention;

fig. 7 is a partial structural schematic view of a pipe joint according to embodiment 3 of the present invention;

FIG. 8 is a schematic view of a rigid ring structure in a pipe joint according to embodiment 4 of the present invention;

fig. 9 is a partial structural schematic view of a pipe joint according to embodiment 4 of the present invention;

FIG. 10 is a schematic view of a rigid ring structure in the pipe joint according to embodiment 5 of the present invention;

fig. 11 is a partial structural view of a pipe joint according to embodiment 5 of the present invention;

FIG. 12 is a schematic view of a rigid ring structure in a pipe joint according to embodiment 6 of the present invention;

fig. 13 is a partial structural view of a pipe joint according to embodiment 6 of the present invention;

FIG. 14 is a schematic structural view of a prior art "cast pipe self-anchoring joint";

fig. 15 is a left side view of fig. 14.

In FIGS. 1-13: 1-a female end, 2-a ball mounting port, 3-a ball, 4-a rigid ring, 5-a sealing rubber ring, 6-a positioning groove, 7-a pipeline body and 8-a dismounting port (with a boss);

in fig. 14 and 15: 1-1-casting pipe bell mouth, 1-2-sealing ring, 1-3-retaining ring, 1-4-steel ball, 1-5-casting pipe spigot, 1-6-steel ball groove and 1-7-steel ball inlet.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention, and the directions such as "left" and "right" mentioned in the embodiments only represent relative positions.

Example 1

As shown in fig. 1, 2 and 3, the self-anchored pipeline joint structure of this embodiment includes a pipeline body 7, one end of the pipeline body 7 is a female end 1, the female end 1 is pre-arranged in the cast pipeline body 7, the female end 1 is matched with a female end of a connection pipeline, the female end of the connection pipeline is inserted into the female end 1, a ball mounting port 2, a ball groove and a positioning groove 6 are sequentially arranged from an end surface of the female end 1, a ball 3 is arranged in the ball groove, a rigid ring 4 is arranged on an outer wall surface of the female end of the connection pipeline, the rigid ring 4 is made of a material suitable for welding, preferably iron or steel, the ball 3 is located in a cavity between an outer side wall of the ball groove and a left side of the rigid ring 4 and can abut against a left side corner of the rigid ring 4, the positioning groove 6 is located on a right side of the rigid ring 4, and a sealing rubber ring 5 is arranged inside the rigid ring 4, what is obviously different from the background art is that, in this embodiment, the lower side of the end portion of the female end 1 opposite to the ball mounting port 2 is correspondingly provided with a dismounting port 8, the ball 3 can be dismounted through the dismounting port 8, and preferably, the ball mounting port 2 and the dismounting port 8 are symmetrically arranged along the axis of the pipeline.

In addition, in this embodiment, the ball 3 is specifically a steel ball, a full circle is arranged along the ball groove, the number of the ball grooves is selected according to the caliber of the pipeline body 7, and the disassembly port 8 is a disassembly port with a boss.

The scheme of the embodiment is that the ball 3 is arranged in the containing cavity between the female end 1 and the rigid ring 4 through the ball mounting port 2, the ball 3 slides downwards through gravity, so that the whole circle of balls are arranged in the female end 1 towards the inside of the pipeline body 7 for effective connection, and can bear larger pulling force, the installation is rapid and convenient, the efficiency is high, the connection is firm, the disassembly is convenient and easy to maintain, the rigid ring 4 is preferably fixed with the socket end of the connected pipeline in a welding mode, the ball mounting port 2 and the disassembly port 8 can also be connected in the female end 1 in a welding mode, the disassembly port 8 can be preset before construction, the construction operation is simplified, the disassembly port 8 is correspondingly arranged at the lower side of the end part of the female end 1 opposite to the ball mounting port 2, the ball 3 can be unloaded through the disassembly port, so when the installation problem occurs in construction and when the two pipelines need to be unlocked or when workers operate, the wrong ball specification needs to be taken out and reassemble, the assembled pipeline does not need to be rotated, and the ball only needs to be unloaded from the disassembling port, so that the device is very convenient.

Example 2

As shown in fig. 4 and 5, this embodiment is a further improvement of embodiment 1, and as can be seen from fig. 4 and 5, in this embodiment, the rigid ring 4 is also fixedly connected to the outer wall surface of the socket end of the connecting pipe by welding, which is the same as embodiment 1, except that a chamfer 41 capable of accommodating solder is formed at a to-be-welded position on the left side of the rigid ring 4.

The embodiment can contain at least a part of solder through the arrangement of the chamfer 41, and the condition that the solder in the ball containing cavity is locally accumulated too high is prevented, so that the local narrow condition of the ball sliding channel possibly occurring is avoided to a greater extent, and the ball sliding channel is smooth.

Example 3

As shown in fig. 6 and 7, the present embodiment is a further improvement on embodiment 2, and as can be seen from fig. 6 and 7, in the present embodiment, in addition to the chamfer 41 capable of accommodating at least a part of solder is formed at the left side to-be-welded portion of the rigid ring 4, a chamfer 41 capable of accommodating at least a part of solder is also formed at the right side to-be-welded portion of the rigid ring 4.

This embodiment can hold the solder of both sides separately through the setting of left and right sides chamfer 41, has not only prevented that the ball from holding the local too high condition of piling up of intracavity solder, has also prevented that the condition of the vertical wall in ball groove can't be pressed close to on 4 right sides of rigid ring when the pipeline socket just inserted the pipeline bellmouth to furthest has avoided the local narrow situation that the ball landing passageway probably appears, makes the ball landing passageway unblocked.

In the above embodiments 2 and 3, the angle α of the chamfer 41 of the rigid ring 4 to the horizontal plane can be selected according to the needs of the welding operation, preferably from 45 ° to 60 °.

Example 4

As shown in fig. 8 and 9, the present embodiment is a further improvement of embodiment 2, and as can be seen from fig. 8 and 9, in the present embodiment, in addition to the chamfer 41 capable of accommodating at least a part of the solder is formed at the left side to-be-welded portion of the rigid ring 4, a force component groove 42 is formed at the left side corner of the rigid ring 4, and the single point contact between the bead 3 and the left side corner of the rigid ring 4 in the tensioned state is converted into the double point contact, and as can be seen from the figure, the force component groove 42 is a square groove, and the two contact points between the bead 3 and the force component groove 42 in the tensioned state are a first contact point 421 and a second contact point 422, respectively.

In the embodiment, the component force groove 42 is formed in the left corner of the rigid ring 4, the single-point abutting of the ball 3 and the left corner of the rigid ring 4 in a tensioned state is converted into the double-point abutting, the main function is to reduce the stress concentration of the pipe interface end 1, and the phenomenon that the sealing effect of the sealing rubber ring 5 is reduced because the pipe socket is subjected to overlarge outward extrusion force from the ball and the pipe socket is subjected to overlarge inward extrusion force from the ball is avoided by reducing the concentrated stress of the single point, and in addition, as can be seen from fig. 9, the corner space of the ball containing cavity is further optimized due to the existence of the component force groove 42.

Example 5

As shown in fig. 10 and 11, this embodiment is a further improvement on embodiment 3, and as can be seen from fig. 10 and 11, in this embodiment, besides that chamfers 41 capable of accommodating at least a part of solder are formed at the left and right sides of the rigid ring 4 at the positions to be welded, a force component groove 42 is formed at the left corner of the rigid ring 4, and the single-point contact between the round bead 3 and the left corner of the rigid ring 4 in the tensioned state is converted into the double-point contact, and the configuration and advantages of the force component groove 42 are already described in embodiment 4, and are not described again here.

Example 6

As shown in fig. 12 and 13, this embodiment is a further improvement on embodiment 4 or embodiment 5, in embodiment 4 and embodiment 5, the height dimension of the vertical wall 423 of the force component groove 42 is equal to the length dimension of the horizontal wall 424, which plays a role in well preventing stress concentration and optimizing the corner space of the ball receiving cavity, in this embodiment, as can be seen from fig. 12 and 13, the height dimension of the vertical wall 423 of the force component groove 42 is not equal to the length dimension of the horizontal wall 424, specifically, the height dimension of the vertical wall 423 is greater than the length dimension of the horizontal wall 424.

In this embodiment, when the height of the vertical wall 423 is greater than the length of the horizontal wall 424, the center of gravity of the ball 3 moves downward after tensioning, and the direction of the component of the force at one of the abutting points (the upper abutting point in the drawing) of the rigid ring 4 is more biased toward the axial direction of the pipeline, so that the direction of the component of the force can be well planned by reasonably setting the proportional relationship between the height of the vertical wall 423 and the length of the horizontal wall 424, and when the ratio between the height of the vertical wall 423 and the length of the horizontal wall 424 is: 1.15-1: 1.3, the radial stress at the joint of the pipeline can be effectively reduced on the premise of ensuring the self-locking effect of the pipeline, and the sealing effect of the sealing rubber ring 5 cannot be influenced by self-locking.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.