CN216867873U - Connecting structure of pipe fitting, combined pipe with connecting structure and combined pipe fitting - Google Patents

Abstract

The utility model belongs to the technical field of pipeline connection, and particularly relates to a pipe fitting connection structure, a combined pipe with the pipe fitting connection structure and a combined pipe fitting with the pipe fitting connection structure. The utility model solves the problem that the traditional pipe fittings are easy to fall off due to moving after being connected, and can be used for pre-connecting and installing the pipe fittings on the ground and then hoisting the buried pipe under the conditions that the space is narrow, the buried depth is deeper, methane exists and the like which are not beneficial to construction, so that the excavation of a ditch and the connection of the pipe fittings can be simultaneously carried out, and the construction efficiency is greatly improved.

Description

Connecting structure of pipe fitting, combined pipe with connecting structure and combined pipe fitting

Technical Field

The utility model belongs to the technical field of pipeline connection, and particularly relates to a pipe fitting connection structure, a combined pipe fitting with the pipe fitting connection structure and a combined pipe fitting with the pipe fitting connection structure.

Background

At present, when the PE double-wall corrugated pipe is in engineering construction, a ditch needs to be dug first, and then pipelines are installed and connected in the ditch. The ditches are usually narrow or deep due to construction environment and requirements, particularly, toxic gases such as methane and the like may appear after the ditches are excavated, and pipeline installation and connection of constructors in the ditches are difficult or have potential safety hazards. Therefore, construction teams sometimes choose to wind pipes, krah pipes, etc. and pre-connect the pipes on the ground and then hang the pipes back into the trench. Although the construction efficiency and the construction safety can be improved in the mode, the socket parts of the PE double-wall corrugated pipe and related accessories on the market are of horn-shaped structures, and after the PE double-wall corrugated pipe and the related accessories are installed and connected, the plug part is easy to be separated from the socket part only by slight swinging and displacement, so that the construction requirement of hoisting cannot be met.

In order to solve the technical problem, a pipe bellmouth joint device is disclosed in the prior art, a pipe bellmouth and a pipe socket are connected through a bellmouth built-in fitting, the bellmouth built-in fitting comprises a sealing device and a clamping device, and a first annular groove and a second annular groove which are matched with the sealing device and the clamping device are arranged on the inner side of the pipe bellmouth in parallel. However, such a construction requires the use of injection molded contraction pressure to firmly connect the pipe socket and the pipe socket together, which is not suitable for installation in a construction site.

SUMMERY OF THE UTILITY MODEL

In order to overcome at least one defect in the prior art, the utility model provides a pipe fitting connecting structure, a combined pipe fitting with the pipe fitting connecting structure and a combined pipe fitting with the pipe fitting connecting structure, which can improve the anti-slipping performance and the construction efficiency of the pipe fitting.

In order to solve the technical problems, the utility model adopts the technical scheme that:

the utility model provides a connection structure of pipe fitting, including the bellmouth and peg graft in the inboard plug of bellmouth, the bellmouth inboard is provided with a plurality of draw-in grooves, but is provided with elastic deformation and can block a plurality of archs of draw-in groove into on the plug, but the external diameter on protruding summit is greater than the internal diameter of bellmouth.

Through being provided with the arch of deformability on the plug in this scheme, when inserting the socket with the plug, the arch receives the extrusion of socket lateral wall and deformation, when the plug moves to protruding and the corresponding position of draw-in groove, the socket lateral wall disappears to bellied effort, protruding shape resumes the card and goes into in the draw-in groove, thereby couple together plug and socket, socket and plug detachable make like this, peg graft fast again during the use and can make the connection fastening between the pipe fitting not drop, make things convenient for the installation and construction of pipe fitting at the scene, improve the operating efficiency.

As a further improved structural form, the protrusion is in a triangular structure, the side wall of the plug forms a bottom wall of the triangular structure, and the side wall of the triangular structure is inclined along the insertion movement direction of the plug.

As a further improved structure form, the base angle range of the triangular structure close to the side of the socket is 10-60 degrees, and the base angle range of the triangular structure far away from the side of the socket is 60-90 degrees.

As a further improved structural form, the top corners of the triangular structure are rounded.

As a further improved structural form, the side wall of the card slot far away from the plug is an inclined wall which is obliquely arranged, and the inclined wall is inclined from the bottom wall of the card slot to the inner wall of the socket along the plug inserting direction.

As a further improved structural form, the clamping groove is circumferentially arranged around the socket, and the protrusion is circumferentially arranged around the plug.

As a further improved structure, the number of the slots is at least two and is distributed on the inner side wall of the socket along the socket insertion direction, and the number of the protrusions is at least two and is distributed on the outer side wall of the plug along the plug insertion direction.

As a further improved structure form, a sealing ring is further arranged between the socket and the plug side wall.

The technical scheme also provides a combined pipe, which comprises a first pipe and a second pipe, wherein one end of the first pipe is provided with the plug, and the other end of the first pipe is a free end; one end of the second pipe is provided with the socket, and the other end of the second pipe is a free end; the first pipe and the second pipe are inserted and connected to form the connecting structure. The combined pipe fitting can be suitable for direct insertion between two pipes.

Still provide a combination pipe fitting among this technical scheme, including third tubular product, fourth tubular product and connecting piece, the connecting piece both ends all are provided with foretell bellmouth, and the one end of third tubular product and fourth tubular product all is provided with foretell plug, inserts the bellmouth at connecting piece both ends through the plug respectively on third tubular product and the fourth tubular product and forms foretell connection structure.

Compared with the prior art, the beneficial effects are:

on one hand, the deformable bulge is arranged on the plug, when the plug is inserted into the socket, the bulge is extruded by the side wall of the socket to deform, when the plug moves to the position where the bulge corresponds to the clamping groove, the acting force of the side wall of the socket on the bulge disappears, and the bulge recovers the shape and is clamped into the clamping groove, so that the plug is connected with the socket, the socket and the plug can be manufactured separately, and when the plug is used, the quick insertion can ensure that the connection between the pipe fittings is fastened and does not fall off.

Drawings

FIG. 1 is a schematic view showing a coupling structure of pipe members according to example 1 of the present invention;

FIG. 2 is a schematic structural diagram of a composite pipe according to example 4 of the present invention;

fig. 3 is a schematic structural diagram of a combined pipe fitting in embodiment 5 of the present invention.

Detailed Description

The drawings are for illustration purposes only and are not to be construed as limiting the utility model; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the utility model.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.

Example 1:

as shown in fig. 1, a pipe connection structure includes a socket 100 and a plug 200 inserted into the socket 100, a slot 300 is disposed inside the socket 100, the plug 200 is provided with a protrusion 400 capable of elastically deforming and being inserted into the slot 300, and an outer diameter of a vertex of the protrusion 400 is larger than an inner diameter of the socket 100.

It should be noted that the socket 100 will generally also be provided with a flare to facilitate intubation, however the internal diameter of the socket 100 cannot be calculated with reference to the walls of the flare or the walls of the bayonet 300, but rather should be calculated with reference to the body of the socket 100.

It should be noted that, in this embodiment, the number of the card slots 300 and the protrusions 400 is only one embodiment for reference, and is not to be understood as a limitation to this embodiment, and the number of the card slots 300 and the protrusions 400 may be increased or decreased correspondingly as needed in the specific implementation process.

In addition, considering that the socket 100 and the plug 200 are generally made of PE, for convenience of integral manufacture and cost reduction, the protrusion 400 in this embodiment may also be made of PE, and the protrusion 400 is thinner, so that it has a certain elastic deformation capability; of course, this is merely a reference embodiment, and in particular, the protrusion 400 may be made of other types of elastically deformable materials, which are not listed here.

In this embodiment, by providing the deformable protrusion 400 on the plug 200, when the plug 200 is inserted into the socket 100, the protrusion 400 is deformed by the extrusion of the sidewall of the socket 100, when the plug 200 moves to a position where the protrusion 400 corresponds to the slot 300, the acting force of the sidewall of the socket 100 on the protrusion 400 disappears, and the shape of the protrusion 400 is restored to be clamped into the slot 300, so as to connect the plug 200 and the socket 100, so that the socket 100 and the plug 200 can be manufactured separately, and when the plug is used, the quick plug-in connection can ensure that the connection between the pipe fittings is fastened without falling off, thereby facilitating the installation and construction of the pipe fittings on site and improving the operation efficiency.

The protrusion 400 in this embodiment is a triangular structure, and the sidewalls of the plug 200 constitute the bottom wall of the triangular structure, and the sidewalls of the triangular structure are inclined in the insertion movement direction of the plug 200. In a specific embodiment, the bottom angle a of the side of the triangular structure close to the socket 100 is 40 °, and the bottom angle B of the side of the acute triangular structure far from the socket 100 is 80 °; thus, when the plug 200 is inserted into the socket 100, because the outer diameter of the top of the protrusion 400 is larger than the inner diameter of the socket 100, the inclined side wall of the protrusion 400 gradually contacts the side wall of the socket 100 and is pressed by the side wall of the socket 100, and because the surface of the protrusion 400 contacting the side wall of the socket 100 is an inclined surface, the pressing force acting on the inclined surface has a component in the insertion direction of the plug 200, and the component is opposite to the insertion direction of the plug 200, so that the protrusion 400 is shrunk and deformed on the side far away from the socket 100, and the plug 200 can be inserted into the socket 100; when the plug 200 is inserted into the position where the protrusion 400 corresponds to the slot 300, the pressure of the sidewall of the socket 100 on the protrusion 400 disappears, and the shape of the protrusion 400 is restored to be clamped into the slot 300, so that the plug 200 is stably connected with the socket 100, and the connection structure enables the pipe fitting to be conveniently and rapidly installed on site, and can effectively prevent the pipe fitting from falling off in the process of movement operations such as hoisting.

In order to avoid that the top corners of the protrusions 400 damage the structure of the socket 100 in the process of inserting the plug 200 into the socket 100, the top corners of the triangular structure in this embodiment are rounded, so that the top rounded corners do not damage the inner wall of the socket 100 in the process of inserting the plug 200 into the socket 100, and the structural integrity and the sealing performance of the socket 100 are ensured.

Because the connection structure in this embodiment is applied to the pipe fitting, after the pipe fitting is connected by the connection structure in this embodiment, operations such as hoisting and the like are also required, the pipe fitting can shake in the hoisting process, and if the connection structure is locked, the bulge 400 or the pipe fitting is easily broken; therefore, the side wall of the card slot 300 away from the plug 200 in this embodiment is an inclined wall, and the inclined wall inclines from the bottom wall of the card slot 300 to the inner wall of the socket 100 along the insertion direction of the plug 200, so that after the protrusion 400 is clamped into the card slot 300, the movement of the protrusion 400 along the insertion direction of the plug 200 is not completely limited, and the movement opposite to the insertion direction of the plug 200 is completely limited, so that the protrusion 400 can also move continuously along the inclined wall of the card slot 300 towards the socket 100, but cannot fall off from the socket 100, thereby avoiding the damage conditions such as fracture and the like caused by hoisting at the connection structure after the pipe fitting is connected. Specifically, the slot 300 in this embodiment may be configured as a hook tooth type, and the bottom of the hook tooth matches with the top fillet of the protrusion 400, so as to be well matched with the protrusion 400, thereby realizing the stable clamping connection between the socket 100 and the joint.

In order to further increase the stability of the connection structure to the pipe connection, the locking groove 300 in this embodiment is circumferentially disposed around the socket 100, and the protrusion 400 is circumferentially disposed around the plug 200, so that the contact area between the locking groove 300 and the protrusion 400 is larger, the acting force of the locking groove 300 on the protrusion 400 is larger, and the stability of the connection structure can be improved.

A sealing ring 500 is further disposed between the socket 100 and the sidewall of the plug 200 in this embodiment, so as to improve the sealing performance of the connection structure.

The working principle of the embodiment is as follows:

slowly inserting the plug 200 into the socket 100, wherein one side wall of the protrusion 400 on the plug 200, which is close to the socket 100, slowly contacts the side wall of the socket 100, and deforms in the opposite direction of the insertion movement under the pressure of the side wall of the socket 100, so that the outer diameter of the vertex of the protrusion 400 is gradually reduced, the plug 200 can be smoothly inserted into the socket 100, when the plug 200 moves to the position where the protrusion 400 corresponds to the clamping groove 300, the shape of the protrusion 400 is restored to be clamped into the clamping groove 300, and the side wall of the clamping groove 300, which is close to one side of the connector, limits the movement of the connector in the opposite direction of the insertion direction, so as to realize the function of preventing the connector from falling off from the socket 100; however, since the side wall of the clamping groove 300 away from the joint is an inclined wall, the joint has certain mobility along the insertion direction, and therefore, when the joint is moved greatly, the joint and the socket 100 cannot be broken due to tight fit, and the requirements of a construction site are met better.

This embodiment has solved the problem that drops easily that traditional pipe fitting after connecting moved and arouse again, to the space narrow little, the buried depth is darker, have marsh gas etc. to be unfavorable for under the environment of construction, can carry out the installation of pre-connection to the pipe fitting earlier on ground, hang again and put the buried pipe, can carry out the excavation of irrigation canals and ditches and be connected with the pipe fitting simultaneously like this, improve the efficiency of construction by a wide margin and construct

Example 2:

the present embodiment differs from embodiment 1 only in that the protrusion 400 in the present embodiment has a triangular structure, and the side wall of the plug 200 constitutes the bottom wall of the triangular structure, and the side wall of the triangular structure is inclined in the insertion movement direction of the plug 200. The bottom angle A of the side of the triangular structure close to the socket 100 is 60 degrees, and the bottom angle B of the side of the triangular structure far away from the socket 100 is 90 degrees; of course, the embodiments referred to herein cannot be understood as limitations on the present solution, and the size of the base angle may also be adaptively set according to actual situations in the specific implementation process, which is not listed here.

Example 3:

the present embodiment is different from embodiment 1 or embodiment 2 only in that the number of the card slots 300 in the present embodiment is two and is distributed on the inner side wall of the socket 100 along the insertion direction of the socket 100, and the number of the protrusions 400 is two and is distributed on the outer side wall of the plug 200 along the insertion direction of the plug 200. By increasing the number of the locking slots 300 and the protrusions 400, the contact area between the socket 100 and the connector can be further increased, so that the connection between the socket 100 and the connector is more secure.

It should be noted that, in the present embodiment, the number of the card slots 300 and the number of the protrusions 400 are two, which is only a reference embodiment, and the limitation of the present solution cannot be understood, and in the specific implementation process, the number of the card slots 300 and the number of the protrusions 400 may be increased or decreased according to the actual need.

Example 4:

fig. 2 shows an embodiment of a composite pipe, which includes a first pipe 101 and a second pipe 201, and the first pipe 101 and the second pipe 201 are inserted to form the connection structure in embodiment 1, embodiment 2, or embodiment 3. The combined pipe fitting can be suitable for direct insertion between two pipes.

In a specific embodiment, the first pipe 101 and the second pipe 201 are both PE double-wall corrugated pipes, and during construction, two adjacent PE double-wall corrugated pipes are connected by the above-mentioned connecting structure and then hoisted into the ditch, so that the pipe connection in the ditch is avoided, the field installation efficiency of the PE double-wall corrugated pipes can be improved, and meanwhile, the PE double-wall corrugated pipes are prevented from falling off in the hoisting process.

In this embodiment, the sealing ring 500 is disposed between two adjacent corrugations of the PE double-wall corrugated pipe, and the sealing ring 500 is higher than the wave crest of the corrugation, so as to achieve a good sealing for the connection of the pipe.

Example 5:

as shown in fig. 3, an embodiment of a composite pipe fitting includes a third pipe 102, a fourth pipe 202 and a connecting member 302, sockets 100 are disposed at both ends of the connecting member 302, plugs 200 are disposed at one ends of the third pipe 102 and the fourth pipe 202, and the sockets 100 at both ends of the connecting member 302 are inserted into the third pipe 102 and the fourth pipe 202 through the plugs 200 to form the connecting structure in embodiment 1, embodiment 2 or embodiment 3.

In this embodiment, two pipes are connected by the connecting member 302, so that various combined installation modes of the pipes are realized.

It should be noted that, in this embodiment, the two ends of the connecting member 302 are provided with the sockets 100 only as a reference, and in a specific implementation process, the connecting member 302 may also be a tee joint, a four-way joint, or the like, which can be provided with a corresponding number of sockets 100 to connect with the pipe, which is well known to those skilled in the art and will not be described in detail herein.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a connection structure of pipe fitting, including bellmouth (100) and peg graft in plug (200) inboard bellmouth (100), its characterized in that, bellmouth (100) inboard is provided with a plurality of draw-in grooves (300), be provided with on plug (200) can elastically deform and can block in a plurality of archs (400) of draw-in groove (300), the external diameter on arch (400) summit is greater than the internal diameter of bellmouth (100).

2. A pipe connection according to claim 1, wherein said protrusion (400) is of a triangular configuration, and the side walls of said spigot (200) form the bottom wall of the triangular configuration, the side walls of the triangular configuration being inclined in the direction of insertion movement of said spigot (200).

3. A pipe connecting structure as claimed in claim 2, wherein the base angle of the triangular structure on the side close to said socket (100) is in the range of 10 to 60 °, and the base angle of the triangular structure on the side away from said socket (100) is in the range of 60 to 90 °.

4. A pipe connecting structure according to claim 3, wherein the top corners of the triangular structure are rounded.

5. A pipe connecting structure according to claim 3, wherein a side wall of said catching groove (300) remote from said plug (200) is an inclined wall which is obliquely arranged, and the inclined wall is inclined from a bottom wall of said catching groove (300) to an inner wall of said socket (100) in an insertion direction of said plug (200).

6. A coupling for tubular elements according to claim 5, wherein said engagement recess (300) is circumferentially arranged around said socket (100) and said projection (400) is circumferentially arranged around said spigot (200).

7. A pipe connecting structure as claimed in claim 6, wherein said locking grooves (300) are at least two in number and are distributed on an inner side wall of said socket (100) in an inserting direction of said socket (100), and said protrusions (400) are at least two in number and are distributed on an outer side wall of said plug (200) in an inserting direction of said plug (200).

8. A tubular connecting structure as claimed in any one of claims 1 to 7, characterized in that a sealing ring (500) is further provided between the socket (100) and the side wall of the spigot (200).

9. The combined pipe is characterized by comprising a first pipe (101) and a second pipe (201), wherein one end of the first pipe (101) is provided with the plug (200), and the other end of the first pipe is a free end; one end of the second pipe (201) is provided with the socket (100), and the other end is a free end; the first pipe (101) and the second pipe (201) are inserted to form the connection structure of any one of claims 1 to 8.

10. A combined pipe fitting, characterized by comprising a third pipe (102), a fourth pipe (202) and a connecting piece (302), wherein the connecting piece (302) is provided with at least two sockets (100), the at least two sockets (100) are communicated, one end of each of the third pipe (102) and the fourth pipe (202) is provided with the plug (200), and the sockets (100) at the two ends of the connecting piece (302) are respectively inserted into the third pipe (102) and the fourth pipe (202) through the plugs (200) to form the connecting structure of any one of claims 1 to 8.

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