CN215111250U

CN215111250U - Fiber resin reinforced flexible sealing self-locking spigot-and-socket joint

Info

Publication number: CN215111250U
Application number: CN202120960587.6U
Authority: CN
Inventors: 陈伟强; 陈秀娉; 李学文
Original assignee: Foshan Lianbo Engineering Technology Co ltd
Current assignee: Foshan Lianbo Engineering Technology Co ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-12-10
Anticipated expiration: 2031-05-07

Abstract

The utility model provides a fiber resin reinforced flexible sealing self-locking spigot-and-socket joint, which comprises a socket part and a socket part, wherein the outer peripheral surface of the socket part is provided with a plurality of first annular bulges, the inner peripheral surface of the socket part is correspondingly provided with a plurality of first annular clamping grooves, and the first annular clamping grooves are matched with the first annular bulges; the outer peripheral surface of the socket part is coated with a fiber resin coating layer, and the fiber resin coating layer comprises a resin main body and reinforcing fibers arranged in the resin main body; the socket part of the fiber resin reinforced flexible sealing self-locking socket joint has high structural strength and is not easy to deform, and the connection reliability between self-locking socket joint solid wall pipes is improved.

Description

Fiber resin reinforced flexible sealing self-locking spigot-and-socket joint

Technical Field

The utility model relates to the technical field of pipelines, in particular to flexible sealed auto-lock socket joint of fibre resin reinforcing.

Background

The trenchless push pipe construction method has the advantage of small social interference, and is increasingly used for urban underground pipeline construction. The pipeline for trenchless pipe jacking construction is generally a self-locking socket type plastic pipeline, such as a self-locking socket polyvinyl chloride solid wall pipe, welding time can be saved when the pipeline is connected, installation can be carried out with water, the required installation space is small, and the connection speed is high.

The interface of the existing self-locking socket solid wall pipe generally comprises a bell mouth part and a spigot part, wherein one end of the same self-locking socket solid wall pipe is provided with the bell mouth part, and the other end of the same self-locking socket solid wall pipe is provided with the spigot part; the inner hole diameter of the end part of a common self-locking socket solid wall pipe is directly enlarged to form a socket part, and the outer diameter of the socket part is kept the same as that of the pipe body, so that the structural strength of the socket part is poor, the socket part is easy to deform under stress, and the connection reliability between the pipe and the pipeline is influenced.

It is seen that the prior art is susceptible to improvements and enhancements.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, the purpose of the embodiment of the application is to provide a fiber resin reinforced flexible sealing self-locking socket joint, the structural strength of the socket part of the fiber resin reinforced flexible sealing self-locking socket joint is high, the deformation is not easy, and the improvement of the connection reliability between self-locking socket solid-wall pipes is facilitated.

The fiber resin reinforced flexible sealing self-locking socket comprises a socket part and a spigot part, wherein a plurality of first annular bulges are arranged on the outer peripheral surface of the spigot part, a plurality of first annular clamping grooves are correspondingly arranged on the inner peripheral surface of the socket part, and the first annular clamping grooves are matched with the first annular bulges; the outer peripheral surface of the socket part is coated with a fiber resin coating layer, and the fiber resin coating layer comprises a resin main body and reinforcing fibers arranged in the resin main body.

The flexible sealed auto-lock socket joint of fibre resin reinforcing of this application embodiment owing to the cladding has the fibre resin coating on the outer peripheral face of bellmouth portion, has strengthened the structural strength of bellmouth portion, makes the bellmouth portion be difficult for the atress to warp to be favorable to improving the connection reliability between the real wall pipe of auto-lock socket joint.

In some embodiments, the reinforcing fibers are a mesh fiber layer.

In some embodiments, the reinforcing fiber is a fiber tape/string spirally wound around the socket portion.

In some embodiments, the reinforcing fiber includes a plurality of annular fiber bands/annular fiber strings coaxially disposed with the socket portion, and the plurality of annular fiber bands/annular fiber strings are uniformly arranged in the axial direction of the socket portion.

Preferably, the reinforcing fiber is at least one of carbon fiber, glass fiber and metal fiber.

Preferably, a plurality of concave grains are arranged on the outer peripheral surface of the socket part.

Preferably, a second annular clamping groove is further formed in the outer peripheral surface of the socket portion, a third annular clamping groove is correspondingly formed in the inner peripheral surface of the socket portion, a C-shaped clamping ring is sleeved in the second annular clamping groove, the outer side of the C-shaped clamping ring can enter the third annular clamping groove after the socket portion is inserted into the socket portion, and the inner side of the C-shaped clamping ring is left in the second annular clamping groove, so that clamping is achieved.

Preferably, an annular mounting groove is formed in the inner circumferential surface of the socket portion, the annular mounting groove is formed in the root of the socket portion, and a first sealing ring is arranged in the annular mounting groove.

Preferably, an arc-shaped protruding ring is arranged on the outer peripheral surface of the socket portion corresponding to the first sealing ring, and the arc-shaped protruding ring is used for extruding the first sealing ring.

Preferably, a second sealing ring is arranged on the end surface of the socket part.

Has the advantages that:

the utility model provides a pair of flexible sealed auto-lock socket joint of fibre resin reinforcing owing to the cladding has the fibre resin coating on the outer peripheral face of bellmouth portion, has strengthened the structural strength of bellmouth portion, makes the bellmouth portion be difficult for the atress to warp to be favorable to improving the connection reliability between the auto-lock socket joint real wall pipe.

Drawings

Fig. 1 is a schematic structural view of the fiber resin reinforced flexible sealing self-locking socket and spigot joint provided by the embodiment of the present invention, and a separated state is shown in the figure.

Fig. 2 is a schematic structural diagram of the fiber resin reinforced flexible sealing self-locking socket and spigot joint provided by the embodiment of the present invention, and a connection state is shown in the diagram.

Fig. 3 is a perspective view of a C-shaped snap ring in the fiber resin reinforced flexible sealing self-locking socket and spigot joint provided by the embodiment of the present invention.

Description of reference numerals: 1. a socket portion; 101. concave lines; 102. a truncated cone-shaped guide surface; 2. a socket portion; 201. a conical surface; 3. a first annular projection; 4. a first annular slot; 5. a fiber resin coating layer; 501. a resin main body; 502. a reinforcing fiber; 6. a second annular card slot; 7. a third ring slot; 8. a C-shaped snap ring; 801. a guide slope; 9. an annular mounting groove; 10. a first seal ring; 11. an arc-shaped raised ring; 12. and a second seal ring.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The following disclosure provides embodiments or examples for implementing different configurations of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

Referring to fig. 1-3, the fiber resin reinforced flexible sealing self-locking spigot-and-socket joint provided by the present invention comprises a socket portion 1 and a socket portion 2, wherein a plurality of first annular protrusions 3 are disposed on an outer peripheral surface of the socket portion 2, a plurality of first annular clamping grooves 4 are correspondingly disposed on an inner peripheral surface of the socket portion 1, and the first annular clamping grooves 4 are adapted to the first annular protrusions 3; the socket 1 is coated with a fiber resin coating layer 5 on the outer peripheral surface thereof, and the fiber resin coating layer 5 includes a resin main body 501 and reinforcing fibers 502 provided in the resin main body 501.

This flexible sealed auto-lock socket joint of fibre resin reinforcing, owing to the cladding has fibre resin coating 5 on the outer peripheral face of bell mouth portion 1, has strengthened the structural strength of bell mouth portion 1, makes bell mouth portion 1 difficult atress warp to be favorable to improving the connection reliability between the real wall pipe of auto-lock socket joint.

Although the figures only show the case where there are two first annular protrusions 3 and two first annular locking grooves 4, the number of the first annular protrusions 3 and the first annular locking grooves 4 is not limited to this, and may be set to one or more according to actual needs.

In some embodiments, the reinforcing fibers 502 are mesh fiber layers. The reticular fiber layer is a net woven by fibers.

In other embodiments, the reinforcing fibers 502 are fiber tapes/strands helically wound around the socket portion 1. That is, a fiber tape/fiber rope is woven from fibers and then disposed in the fiber resin coating layer 5 in a spirally wound form.

In other embodiments, the reinforcing fiber 502 includes a plurality of annular fiber bands/annular fiber ropes coaxially disposed with the socket 1, and the plurality of annular fiber bands/annular fiber ropes are uniformly arranged along the axial direction of the socket 1, as shown in fig. 1 and 2. That is, an endless fiber tape/endless fiber rope is woven from fibers and then placed in the fiber resin coating layer 5.

In fact, the structural form of the reinforcing fibers 502 is not limited thereto, nor is it limited to only one structural form.

Wherein, the reinforcing fiber 502 can be but not limited to at least one of carbon fiber, glass fiber and metal fiber.

In some preferred embodiments, referring to fig. 1 and 2, the outer peripheral surface of the socket portion 2 is provided with a plurality of concave grains 101. The resin main body 501 of the fiber resin coating layer 5 can thereby enter the dimples 101, increasing the adhesive strength between the fiber resin coating layer 5 and the outer peripheral surface of the socket portion 2. The intaglio 101 may be at least one of linear intaglio and dot intaglio.

Preferably, as shown in fig. 1 and 2, a second annular clamping groove 6 is further arranged on the outer peripheral surface of the socket portion 2, a third annular clamping groove 7 is correspondingly arranged on the inner peripheral surface of the socket portion 1, a C-shaped snap ring 8 is sleeved in the second annular clamping groove 6, and the C-shaped snap ring 8 can enter the third annular clamping groove 7 from the outer side and remain in the second annular clamping groove 6 from the inner side after the socket portion 2 is inserted into the socket portion 1, so as to realize the locking. The tensile capacity of the joint can be further improved through the clamping action of the C-shaped clamping ring 8, so that the socket part 1 and the socket part 2 are not easy to be pulled to be disjointed.

In this embodiment, as shown in fig. 3, the C-shaped snap ring 8 is provided with a guide slope 801 on the side facing the socket portion 1, so as to make the process of inserting the socket portion 2 into the socket portion 1 smoother.

In order to improve the sealing performance, as shown in fig. 1 and 2, an annular mounting groove 9 is arranged on the inner circumferential surface of the socket part 1, the annular mounting groove 9 is arranged at the root of the socket part 1, and a first sealing ring 10 is arranged in the annular mounting groove 9.

Further, as shown in fig. 1, an arc-shaped protrusion ring 11 is disposed on the outer circumferential surface of the socket 2 at a position corresponding to the first seal ring 10, and the arc-shaped protrusion ring 11 is used for pressing the first seal ring 10, so that the sealing performance can be further improved.

In order to further improve the sealing performance, a second sealing ring 12 is arranged on the end surface of the socket part 1, see fig. 1 and 2. Wherein, the end face of the socket part 1 is provided with a sealing ring mounting groove, and the second sealing ring 12 is embedded into the sealing ring mounting groove.

In some preferred embodiments, see fig. 1, the inner side of the end of the socket 1 is a truncated cone shaped guide surface 102. When the socket part 2 is inserted, even if the socket part 2 is not exactly aligned with the socket part 1, the socket part 2 can be smoothly inserted into the socket part 1 under the guiding action of the truncated cone-shaped guiding surface 102, and the use convenience is improved. In order to improve the tightness of the fit between the socket portion 1 and the socket portion 2, the root of the socket portion 2 may be provided with a tapered surface 201 adapted to the truncated cone-shaped guide surface 102.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and the embodiments are substantially the same as the present invention.

Claims

1. The fiber resin reinforced flexible sealing self-locking socket joint comprises a socket part (1) and a socket part (2), wherein a plurality of first annular bulges (3) are arranged on the outer peripheral surface of the socket part (2), a plurality of first annular clamping grooves (4) are correspondingly arranged on the inner peripheral surface of the socket part (1), and the first annular clamping grooves (4) are matched with the first annular bulges (3); the socket part is characterized in that the outer peripheral surface of the socket part (1) is coated with a fiber resin coating layer (5), and the fiber resin coating layer (5) comprises a resin main body (501) and reinforcing fibers (502) arranged in the resin main body (501).

2. The fiber-resin reinforced flexible sealing self-locking female spigot of claim 1, wherein said reinforcing fibers (502) are layers of reticulated fibers.

3. The fiber-resin reinforced flexible sealing self-locking spigot and socket of claim 1, wherein said reinforcing fiber (502) is a fiber tape/string spirally wound around said socket portion (1).

4. The fiber-resin reinforced flexible sealing self-locking spigot and socket according to claim 1, wherein said reinforcing fiber (502) comprises a plurality of annular fiber bands/annular fiber cords coaxially arranged with said socket portion (1), said plurality of annular fiber bands/annular fiber cords being uniformly arranged along the axial direction of said socket portion (1).

5. The fiber-resin reinforced flexible sealing self-locking female spigot according to claim 1, wherein said reinforcing fibers (502) are at least one of carbon fibers, glass fibers, and metal fibers.

6. The fiber resin reinforced flexible sealing self-locking female spigot according to claim 1, wherein a plurality of concave lines (101) are provided on the outer peripheral surface of said spigot portion (2).

7. The fiber resin reinforced flexible sealing self-locking spigot-and-socket joint as claimed in claim 1, wherein a second annular clamping groove (6) is further formed in the outer peripheral surface of the spigot portion (2), a third annular clamping groove (7) is correspondingly formed in the inner peripheral surface of the socket portion (1), a C-shaped snap ring (8) is sleeved in the second annular clamping groove (6), and the C-shaped snap ring (8) can enter the third annular clamping groove (7) from the outer side and remain in the second annular clamping groove (6) from the inner side after the spigot portion (2) is inserted into the socket portion (1) so as to realize the locking.

8. The fiber resin reinforced flexible sealing self-locking spigot and socket joint according to claim 1, wherein an annular mounting groove (9) is provided on the inner peripheral surface of said socket portion (1), said annular mounting groove (9) being provided at the root of said socket portion (1), said annular mounting groove (9) being provided with a first sealing ring (10).

9. The fiber resin reinforced flexible sealing self-locking female spigot according to claim 8, wherein an arc-shaped raised ring (11) is arranged on the outer peripheral surface of the spigot portion (2) at a position corresponding to the first sealing ring (10), and the arc-shaped raised ring (11) is used for extruding the first sealing ring (10).

10. The fiber resin reinforced flexible sealing self-locking spigot and socket according to claim 1, wherein a second sealing ring (12) is arranged on the end surface of said socket portion (1).