阅读说明：本技术 一种球头连接的伸缩管道结构 (Telescopic pipeline structure connected by ball head ) 是由 叶烈伟 温傲寒 李进波 邓烜 王伟凤 于 2020-12-31 设计创作，主要内容包括：本发明公开了一种球头连接的伸缩管道结构,包括球头、延长管道、伸缩节和伸缩平衡装置；所述延长管道和伸缩节的外端设置有球头,所述伸缩平衡装置的两端分别与延长管道的内端和伸缩节的内端连接。本发明通过球头的转动变形来适应震动发生时管道方向的变化,在管道角度变化时通过伸缩节的伸缩来补偿管道长度的变形,进而适应设置在隔震层时管道的变形,同时设置压力平衡装置,能够针对伸缩节伸缩所引起的管道介质体积变化进行等量补偿,避免管道发生变形,能够应用于建筑中大多数压力管道系统；本发明安装于隔震层中,有效节约隔震层空间,为隔震管道的设计与安装提供了便利,适应性好,可用于复杂管网中。(The invention discloses a telescopic pipeline structure connected with a ball head, which comprises the ball head, an extension pipeline, a telescopic joint and a telescopic balancing device, wherein the extension pipeline is arranged on the ball head; the extension pipeline and the outer end of the telescopic joint are provided with ball heads, and two ends of the telescopic balance device are respectively connected with the inner end of the extension pipeline and the inner end of the telescopic joint. The invention adapts to the change of the pipeline direction when the vibration occurs through the rotation deformation of the ball head, compensates the deformation of the pipeline length through the expansion of the expansion joint when the pipeline angle changes, and further adapts to the deformation of the pipeline when the pipeline is arranged on a shock insulation layer, and meanwhile, the pressure balancing device is arranged, so that the equivalent compensation can be carried out on the change of the pipeline medium volume caused by the expansion of the expansion joint, the pipeline deformation is avoided, and the pressure compensation device can be applied to most pressure pipeline systems in buildings; the invention is arranged in the shock insulation layer, effectively saves the space of the shock insulation layer, provides convenience for the design and the installation of a shock insulation pipeline, has good adaptability and can be used in a complex pipe network.)

1. A ball head connected telescopic pipeline structure is characterized by comprising a ball head (1), an extension pipeline (2), a telescopic joint (3) and a telescopic balance device (4); the outer ends of the extension pipeline (2) and the telescopic joint (3) are provided with ball heads (1), and two ends of the telescopic balancing device (4) are respectively connected with the inner end of the extension pipeline (2) and the inner end of the telescopic joint (3);

bulb (1) includes outer tube (11), interior bulb (12) and cyclic annular clamp (13), interior bulb (12) are established in outer tube (11), on bulb (12) including cyclic annular clamp (13) are established to be connected with outer tube (11).

2. The ball joint telescopic pipe structure according to claim 1, wherein: be provided with support ring one (14) in the inner chamber of outer tube (11), the inboard contact of support ring one (14) and interior bulb (12) outer wall, be equipped with support ring two (15) in cyclic annular clamp (13), the outside contact of support ring two (15) and interior bulb (12) outer wall.

3. The ball joint telescopic pipe structure according to claim 1, wherein: the telescopic joint (3) is movably connected in an inner cavity of the telescopic balancing device (4), the telescopic balancing device (4) comprises a first outer sleeve (41), a liquid storage pipe (42) and a second outer sleeve (43), and the first outer sleeve (41) and the second outer sleeve (43) are respectively arranged at the inner end and the outer end of the liquid storage pipe (42); the telescopic joint (3) comprises a pipe body (31) and a convex ring (32), wherein the convex ring (32) is arranged on the outer wall of the middle part of the pipe body (31), the convex ring (32) is positioned in the inner cavity of the liquid storage pipe (42), the outer side surface of the convex ring is attached to the inner wall of the liquid storage pipe (42), the two end parts of the pipe body (31) are respectively positioned in the inner cavities of a first outer sleeve (41) and a second outer sleeve (43), the outer wall of the pipe body (31) is attached to the inner wall of the first outer sleeve (41) and the inner wall of the second outer sleeve (43), a through hole (311) is formed in the pipe body (31), and the through hole (311) is positioned on the pipe body (31) on the inner.

4. The ball joint telescopic pipe structure according to claim 3, wherein: the inner end part of the pipe body (31) is fixedly connected with the inner ball head (12) of the ball head (1), the outer end of the pipe body (31) is in a free state, the outer end of the second outer sleeve (43) is fixedly connected with the extension pipeline (2), and the inner end of the first outer sleeve (41) is in a free state.

5. The ball joint telescopic pipe structure according to claim 2, wherein: the outer sleeve (11) comprises a connecting flange (111), an arc-shaped connecting section (112) and a connecting pipe (113), the arc-shaped connecting section (112) is arranged between the connecting pipe (113) and the connecting flange (111), and the first support ring (14) is arranged on the inner wall of the arc-shaped connecting section (112).

6. The ball joint telescopic pipe structure according to claim 5, wherein: the inner wall of the connecting pipe (113) is provided with two annular grooves which are respectively positioned at two sides of a great circle of the inner ball head (12), a sealing ring (16) is arranged in each annular groove, and the sealing ring (16) is movably connected in each annular groove;

the sealing rings (16) are symmetrically arranged on two sides of a great circle of the inner ball head (12), and the inner wall of each sealing ring (16) is in contact with the outer wall of the inner ball head (12).

7. The ball joint telescopic pipe structure according to claim 5, wherein: the outer end of connecting pipe (113) is equipped with annular slot, the interval is provided with bayonet socket (1131) on the annular slot, be equipped with fixture block (131) on annular clamp (13), fixture block (131) correspond the setting with bayonet socket (1131).

8. The ball joint telescopic pipe structure according to claim 7, wherein: bayonet socket (1131) are evenly spaced and are established in the annular draw-in groove outside, fixture block (131) are evenly spaced and are established on annular clamp (13) to it is corresponding with bayonet socket (1131).

9. The ball joint telescopic pipe structure according to claim 2, wherein: the inner side surfaces of the first support ring (14) and the second support ring (15) are in fit contact with the outer wall of the inner ball head (12), and a gap is formed between the outer wall of the inner ball head (12) and the inner wall of the outer sleeve (11).

10. The ball joint telescopic pipe structure according to claim 1, wherein: the material of outer tube (11), interior bulb (12), cyclic annular clamp (13), telescopic joint (3) and flexible balancing unit (4) is the metal, the material of support ring one (14) and support ring two (15) is nylon.

Technical Field

The invention relates to the technical field of building shock insulation, in particular to a telescopic pipeline structure connected by a ball head.

Background

In recent 20 years, building seismic isolation technology has been rapidly developed in China, and the technology is generally used in key buildings. Building seismic isolation techniques reduce the transfer of seismic action to the upper body structure by creating large displacements in the seismic isolation layers. Therefore, it is necessary to assemble shock-proof pipeline products which can adapt to large displacement. At present, the existing domestic shock insulation pipeline products have the problems of large installation required space, complex installation technology, poor product universality and the like in practical application. The two prior technical schemes are applied to the installation of a shock insulation pipeline of a building.

In the first scheme, a horizontal L-shaped installation mode is generally adopted for a large-diameter pressure-isolation pipeline which is larger than DN 65. The pipeline on one side is fixed on a lower structure of the shock insulation building through the support, the pipeline on the other side and the middle suspension rod are fixed on an upper structure of the shock insulation building through the support and the sliding rail, and free deformation of the pipeline is achieved through the two flexible pipelines which are vertically connected. The installation mode is applied to a pressure pipeline system, but the installation space is large, the installation steps are multiple, and certain difficulty is brought to actual design and construction. Especially in the building with complicated pipeline complicatedness, such as the building with complicated pipeline complicatedness, it is difficult to find a spacious space in the seismic isolation layer for arranging the flexible pipeline adopting the horizontal L-shaped installation mode

Scheme two, to the non-pressure pipeline, like rainwater pipeline, adopt the flexible pipeline of PVC among the prior art scheme usually, the pipeline adopts the horizontal installation mode, and the rotation through both ends bulb and the flexible deformation that adapts to the shock insulation layer of middle part expansion joint are including the PVC bulb at both ends and the expansion joint at middle part in the structure. The above-mentioned pipes are mainly used in pressureless pipe systems, and because of the almost incompressible nature of the liquid, such telescopic pipes cannot be used in pressureless pipe systems. In addition, as the telescopic pipeline is made of polyvinyl chloride and has lower strength, the ball head and the telescopic joint can deform non-negligibly under the action of pressure liquid, so that the pipeline can leak seriously. The invention provides a telescopic pipeline structure connected by a ball head, which solves the problems.

Disclosure of Invention

The invention provides a ball head connected telescopic pipeline structure which is applied to installation of building shock insulation pipelines and adapts to deformation of a shock insulation layer through rotation deformation of a ball head and expansion and contraction of a telescopic joint.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a telescopic pipeline structure connected with a ball head comprises the ball head, an extension pipeline, a telescopic joint and a telescopic balancing device; the outer ends of the extension pipeline and the telescopic joint are provided with ball heads, and two ends of the telescopic balance device are respectively connected with the inner end of the extension pipeline and the inner end of the telescopic joint;

the bulb includes outer tube, interior bulb and cyclic annular clamp, interior bulb is established in the outer tube, cyclic annular clamp establishes on interior bulb to with outer tube connection.

Furthermore, a first support ring is arranged in the inner cavity of the outer sleeve and is in contact with the inner side of the outer wall of the inner ball head, a second support ring is arranged in the annular clamp and is in contact with the outer side of the outer wall of the inner ball head.

Furthermore, the telescopic joint is movably connected in an inner cavity of the telescopic balancing device, the telescopic balancing device comprises a first outer sleeve, a liquid storage pipe and a second outer sleeve, and the first outer sleeve and the second outer sleeve are respectively arranged at the inner end and the outer end of the liquid storage pipe; the telescopic joint comprises a pipe body and a convex ring, the convex ring is arranged on the outer wall of the middle part of the pipe body, the convex ring is positioned in the inner cavity of the liquid storage pipe, the outer side surface of the convex ring is attached to the inner wall of the liquid storage pipe, the two end parts of the pipe body are respectively positioned in the inner cavities of the first outer sleeve and the second outer sleeve, the outer wall of the pipe body is attached to the inner wall of the first outer sleeve and the inner wall of the second outer sleeve, a through hole is formed in the pipe body, and the through hole is positioned.

Furthermore, the inner end part of the pipe body is fixedly connected with the inner ball head of the ball head, the outer end of the pipe body is in a free state, the outer end of the outer sleeve II is fixedly connected with the extension pipeline, and the inner end of the outer sleeve I is in a free state.

Furthermore, the outer sleeve comprises a connecting flange, an arc-shaped connecting section and a connecting pipe, the arc-shaped connecting section is arranged between the connecting pipe and the connecting flange, and the first support ring is arranged on the inner wall of the arc-shaped connecting section.

Furthermore, the inner wall of the connecting pipe is provided with two annular grooves which are respectively positioned at two sides of the large circle of the inner bulb, and sealing rings are arranged in the annular grooves and movably connected in the annular grooves; the sealing rings are symmetrically arranged on two sides of the large circle of the inner ball head, and the inner wall of each sealing ring is in contact with the outer wall of the inner ball head.

Further, the outer end of connecting pipe is equipped with annular groove, the interval is provided with the bayonet socket on the annular groove, be equipped with the fixture block on the annular clamp, the fixture block corresponds the setting with the bayonet socket.

Preferably, the inner side surfaces of the first support ring and the second support ring are in fit contact with the outer wall of the inner ball head, and a gap is formed between the outer wall of the inner ball head and the inner wall of the outer sleeve.

Preferably, the bayonets are uniformly arranged outside the annular clamping groove at intervals, and the clamping blocks are uniformly arranged on the annular hoop at intervals and correspond to the bayonets.

Preferably, the outer sleeve, the inner ball head, the annular clamp, the expansion joint and the telescopic balance device are made of metal, and the first support ring and the second support ring are made of nylon.

The invention has the following beneficial effects:

the pipeline expansion joint is suitable for the change of the pipeline direction when vibration occurs through the rotational deformation of the ball head, the deformation of the pipeline length is compensated through the expansion of the expansion joint when the pipeline angle changes, and further the deformation of the pipeline when the pipeline is arranged on a shock insulation layer is suitable;

the telescopic pipeline can be vertically installed in a shock insulation layer, so that the space of the shock insulation layer is effectively saved, convenience is provided for design and installation of the shock insulation pipeline, the adaptability is good, and the telescopic pipeline can be used in a complex pipe network;

the pipeline made of metal has the characteristics of high strength, good durability, strong universality, small reaction force in deformation, no damage to the pipeline, no maintenance after earthquake and the like.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view, partially in section, of the structure of the present invention;

FIG. 3 is an exploded view of the expansion joint and the expansion balance device of the present invention;

FIG. 4 is a sectional view showing the connection relationship between the telescopic joint and the telescopic balance device according to the present invention;

FIG. 5 is a schematic view of a ball head structure of the present invention;

FIG. 6 is an exploded view of the ball head of the present invention;

FIG. 7 is a schematic diagram of a state of the ball head structure to be mounted according to the present invention;

FIG. 8 is a cross-sectional view of a ball of the present invention;

fig. 9 is an enlarged view of the part a in fig. 8.

Reference numerals: 1-ball head, 11-outer sleeve, 111-connecting flange, 112-arc connecting section, 113-connecting pipe, 1131-buckle, 12-inner ball head, 13-annular hoop, 131-clamping block, 14-first support ring, 15-second support ring, 16-sealing ring, 2-extension pipe, 3-expansion joint, 31-pipe body, 311-through hole, 32-convex ring, 4-expansion balancing device, 41-first outer sleeve, 42-liquid storage pipe, and 43-second outer sleeve.

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 specification, 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.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

As shown in fig. 1 and 2, a ball-jointed telescopic pipe structure comprises a ball joint 1, an extension pipe 2, a telescopic joint 3 and a telescopic balance device 4; the outer ends of the extension pipeline 2 and the telescopic joint 3 are provided with ball heads 1, and two ends of the telescopic balancing device 4 are respectively connected with the inner end of the extension pipeline 2 and the inner end of the telescopic joint 3.

The invention is arranged in a building shock insulation layer, when vibration occurs, the direction and the position of the pipeline are adjusted through the rotational deformation of the ball heads arranged at the two ends of the pipeline, and the extension and the shortening of the pipeline are compensated through the telescopic movement of the telescopic joint 3 in the telescopic balancing device 4, so that the requirement of free telescopic deformation of the pipeline is met.

As shown in fig. 5, 6 and 7, the ball head 1 includes an outer sleeve 11, an inner ball head 12 and an annular collar 13, the inner ball head 12 is disposed in the outer sleeve 11, and the annular collar 13 is disposed on the inner ball head 12 and connected to the outer sleeve 11.

As shown in fig. 6, 8 and 9, further, a first support ring 14 is disposed in the inner cavity of the outer sleeve 11, the first support ring 14 is in contact with the inner side of the outer wall of the inner ball head 12, a second support ring 15 is disposed in the annular clamp 13, and the second support ring 15 is in contact with the outer side of the outer wall of the inner ball head 12.

As shown in fig. 6, further, the outer sleeve 11 includes a connecting flange 111, an arc-shaped connecting section 112 and a connecting pipe 113, the arc-shaped connecting section 112 is disposed between the connecting pipe 113 and the connecting flange 111, and the first support ring 14 is disposed on the inner wall of the arc-shaped connecting section 112.

As shown in fig. 9, further, two annular grooves are formed in the inner wall of the connecting pipe 113, and are respectively located on two sides of the great circle of the inner ball head 12, a sealing ring 16 is arranged in each annular groove, and the sealing ring 16 is movably connected in each annular groove;

the sealing rings 16 are symmetrically arranged on two sides of the great circle of the inner ball head 12, and the inner wall of each sealing ring 16 is in contact with the outer wall of the inner ball head 12.

When setting up the sealing washer among the prior art in the bulb, generally be with the sealing washer setting at the bulb end near flange one side to guarantee sealed effect through applying the pretightning force, but above-mentioned structure has following defect: firstly, under normal conditions, the friction ball head is extruded due to overlarge pretightening force, so that the purpose of free deformation of the universal ball head cannot be realized; secondly, when the structure takes place to warp, under the effect of axial force, the pretightning force can appear in the sealing washer displacement and reduce, appear the gap scheduling problem and lead to sealed effect to reduce by a wide margin, can't reach predetermined sealed requirement.

According to the invention, the two sealing rings 16 are symmetrically arranged on the two sides of the large circle of the inner ball head 12, the sealing effect of the two sealing rings 16 is stronger without applying larger pretightening force, and the clamping hoop is not born any more, so that free deformation can be realized; when the structure is deformed and axial force acts on the inner ball head 12, the inner ball head 12 slightly extrudes the sealing ring 16 on one side of the moving direction of the inner ball head 12 when moving along the axis in any direction, so that the sealing effect on the side is enhanced, and the sealing performance on at least one side is ensured under any condition. Therefore, the symmetrical arrangement of the two side sealing rings 16 not only ensures the free deformation of the inner ball head 12, but also effectively ensures the sealing effect of the sealing rings 16.

Preferably, interior bulb 12 includes bulb and connector, the bulb is located outer tube 11, the connector is connected in the bulb outside, be equipped with the spread groove on the connector, the connector passes through the groove connection and is connected with corresponding fastener or pipe connection.

The free rotation principle of the ball head 1 is as follows: the inner chamber of outer tube 11 forms and rotates the inner chamber, support ring one 14 in the inner chamber of outer tube 11 and support ring two 15 in cyclic annular clamp 13 establish respectively in the inside and outside both sides of bulb, form cage type structural support and play support and the solid effect of card to the bulb, make the bulb rotate in the inner chamber of outer tube 11, and then realize the free rotation of connector direction, when the pipeline takes place vibrations, the change through interior bulb 12 direction realizes the little displacement skew of pipeline, and can return to the original position automatically, the maintenance-free after the vibrations of pipeline has been realized.

As shown in fig. 2, 3 and 4, further, the telescopic joint 3 is movably connected in an inner cavity of the telescopic balance device 4, the telescopic balance device 4 includes a first outer sleeve 41, a second liquid storage tube 42 and a second outer sleeve 43, and the first outer sleeve 41 and the second outer sleeve 43 are respectively disposed at the inner end and the outer end of the second liquid storage tube 42; the telescopic joint 3 comprises a pipe body 31 and a convex ring 32, the convex ring 32 is arranged on the outer wall of the middle part of the pipe body 31, the convex ring 32 is positioned in the inner cavity of the liquid storage pipe 42, the outer side surface of the convex ring is attached to the inner wall of the liquid storage pipe 42, the two end parts of the pipe body 31 are respectively positioned in the inner cavities of the first outer sleeve 41 and the second outer sleeve 43, the outer wall of the pipe body 31 is attached to the inner wall of the first outer sleeve 41 and the inner wall of the second outer sleeve 43, a through hole 311 is arranged on the pipe body 31, and the through hole 311 is positioned on the pipe.

As shown in fig. 2 and 4, preferably, the convex ring 32, the reservoir tube 42, the first outer sleeve 41 and the inner side portion of the tube 31 are attached to each other to form a closed reservoir cavity, and the reservoir cavity is communicated with the inner cavity of the pipeline through a through hole 311.

Preferably, when the telescopic joint 3 is compressed in the telescopic balancing device 4, the convex ring 32 moves outwards, so that the volume of the liquid storage cavity is increased; when the telescopic joint 3 extends in the telescopic balancing device 4, the convex ring 32 moves inwards, so that the volume of the liquid storage cavity is reduced.

The medium compensation in the pipe of the telescopic joint 3 when the telescopic balancing device 4 is in telescopic motion is as follows: when the telescopic joint 3 is compressed in the telescopic balancing device 4, the telescopic joint 3 moves inwards, so that the length of the pipeline is shortened, the volume of the liquid storage cavity is increased, redundant media in the pipeline are extruded, and the through hole 311 enters the liquid storage cavity; when the telescopic joint 3 extends in the telescopic balance device 4, the telescopic joint 3 moves outwards, so that the length of the pipeline is increased and the volume of the liquid storage cavity is reduced, redundant media in the liquid storage cavity are extruded and enter the pipeline through the through hole 311, and the pipeline inner cavity increased due to the increase of the pipeline is compensated.

Preferably, the reservoir tube 42 and the second outer sleeve 43 are detachably connected.

Further, the inner end of the tube 31 is fixedly connected with the inner ball 12 of the ball head 1, the outer end of the tube 31 is in a free state, the outer end of the outer sleeve 43 is fixedly connected with the extension pipe 2, and the inner end of the outer sleeve 41 is in a free state.

Further, a sealing ring is arranged between the outer wall of the tube body 31 and the inner wall of the first outer sleeve 41.

As shown in fig. 6 and 7, further, an annular clamping groove is formed at the outer end of the connecting pipe 113, bayonets 1131 are arranged on the annular clamping groove at intervals, a clamping block 131 is arranged on the annular clamping hoop 13, and the clamping block 131 and the bayonets 1131 are correspondingly arranged.

Preferably, the inner side surfaces of the first support ring 14 and the second support ring 15 are in contact with the outer wall of the inner ball head 12, and a gap is formed between the outer wall of the inner ball head 12 and the inner wall of the outer sleeve 11.

Preferably, the bayonets 1131 are uniformly arranged outside the annular bayonet slot at intervals, and the clips 131 are uniformly arranged on the annular clamp 13 at intervals and correspond to the bayonets 1131.

Preferably, the outer sleeve 11, the inner ball head 12, the annular clamp 13, the telescopic joint 3 and the telescopic balance device 4 are made of metal, and the first support ring 14 and the second support ring 15 are made of nylon.

The using method of the invention is as follows: the expansion joint 3 is firstly preassembled in the expansion balance device 4 to form a sealed liquid storage cavity, then the ball head 1 is combined, the ball head 1 is connected with the outer end of the expansion joint 3 and the outer end of the extension pipeline 2 after combination, then the inner end of the extension pipeline 2 is connected with the inner end of the outer sleeve pipe II 43, a sealing experiment is carried out after connection is completed, and the ball heads 1 at two ends are connected with the pipeline after the experiment is qualified.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.