CN111594673A

CN111594673A - Precast concrete pipe

Info

Publication number: CN111594673A
Application number: CN202010516413.0A
Authority: CN
Inventors: 邓志淑
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2020-08-28

Abstract

The embodiment of the application discloses a concrete prefabricated pipe, which comprises a pipe body, a fastener and a first sealing ring; the pipe bodies are coaxially spliced end to end, positioning of adjacent pipe bodies is achieved through concave-convex matching, connecting flanges extending outwards are arranged at two ends of each pipe body, and the connecting flanges at the splicing positions of the adjacent pipe bodies are connected through fasteners; first sealing washer presss from both sides and locates between the connecting flange and is equipped with the hole of stepping down that supplies the fastener to pass. This application realizes the better location concatenation of body through unsmooth cooperation through adjacent body, improves the equipment precision, and the connecting flange of adjacent body passes through the fastener to be connected, realizes the connection of body fixed, first sealing washer clamp is located between the connecting flange, can press from both sides first sealing washer through the fastener is fixed tightly, realizes good sealing performance.

Description

Precast concrete pipe

Technical Field

The embodiment of the application relates to concrete prefabricated component, especially relates to a concrete prefabricated pipe.

Background

In the prior art, with the rapid advance of urbanization, China builds or plans to build a plurality of sewage treatment plants in large and medium cities, a large amount of industrial wastewater and domestic sewage enter the sewage treatment plants for centralized treatment through drain pipes, the drain pipes mostly use concrete prefabricated pipes, and pipe fittings produced in factories are transported to the site for assembly.

However, when the prefabricated pipe fitting is assembled, the alignment accuracy is not high and the sealing performance is poor, and sewage may permeate into soil from the pipe fitting gap to pollute surface soil.

Disclosure of Invention

The technical problem that this application embodiment will solve provides a precast concrete pipe, can realize better counterpoint assemble and have good sealing performance.

The embodiment of the application is realized by the following technical scheme: a concrete prefabricated pipe comprises a pipe body, a fastener and a first sealing ring; the pipe bodies are coaxially spliced end to end, positioning of adjacent pipe bodies is achieved through concave-convex matching, connecting flanges extending outwards are arranged at two ends of each pipe body, and the connecting flanges at the splicing positions of the adjacent pipe bodies are connected through fasteners; first sealing washer presss from both sides and locates between the connecting flange and is equipped with the hole of stepping down that supplies the fastener to pass.

Further, the head end face of the pipe body is provided with a protrusion, the tail end of the pipe body is provided with a groove matched with the protrusion in a corresponding mode, and the protrusion of the adjacent pipe body is inserted into the groove to achieve concave-convex matching.

Further, a second sealing ring is arranged at the bottom of the groove.

Furthermore, the inner wall of the pipe body is embedded with an anti-corrosion pipe.

Further, the anti-corrosion pipe is made of PVC materials.

The beneficial effects are that:

compared with the prior art, the precast concrete pipe of this application embodiment realizes the better location concatenation of body through unsmooth cooperation through adjacent body, improves the equipment precision, and the connection flange of adjacent body passes through the fastener and connects, realizes the connection of body fixed, first sealing washer clamp is located between the connection flange, and is fixed through the fastener can press from both sides first sealing washer tightly, realizes good sealing performance.

Drawings

The following detailed description of embodiments of the present application is provided in conjunction with the appended drawings, wherein:

FIG. 1 is a schematic structural diagram of an embodiment of the present application;

fig. 2 is an enlarged view at a of fig. 1.

Detailed Description

In order to make those skilled in the art better understand the technical solutions of the embodiments of the present application, the embodiments of the present application are described in detail below with reference to the drawings, and the description in this section is only exemplary and explanatory, and should not have any limiting effect on the scope of the embodiments of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that a product of the embodiments of the present application is usually placed in when used, and are only used for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and 2, a precast concrete pipe includes a pipe body 1, a fastening member 2, and a first sealing ring 3.

The pipe body 1 is provided with a plurality of coaxial head and tail splicing, and during splicing, the head and tail end surfaces of the pipe body 1 are attached to each other.

Adjacent body 1 realizes the location through unsmooth cooperation, 1 both ends of body are equipped with the flange 11 that extends outwards, it is preferred, flange 11 and body 1's terminal surface parallel and level, the flange 11 of 1 concatenation departments of adjacent body passes through fastener 2 to be connected, it is concrete, the fastener is the bolt, flange 11 is equipped with the through-hole of lining up, the bolt passes the through-hole and connects the nut, it can realize flange 11's connection fixed to screw up the nut, for structural symmetry, the through-hole evenly encircles the range around 1 axis of body, corresponding fastener also evenly encircles the range around 1 axis of body. First sealing washer 3 presss from both sides and locates between connecting flange 11 and be equipped with the hole of stepping down that supplies fastener 2 to pass, and fastener 2 passes the hole of stepping down and can also play certain spacing positioning action to first sealing washer 3.

Preferably, the head end face of the pipe body 1 is provided with a protrusion 12, the tail end of the pipe body is provided with a groove 13 correspondingly matched with the protrusion 12, and the protrusion 12 of the adjacent pipe body 1 is inserted into the groove 13 to realize concave-convex matching, so that the positioning accuracy of splicing the pipe body 1 is improved.

In order to improve the sealing performance, the groove bottom of the groove 13 is provided with a second sealing ring 4.

In order to improve the corrosion resistance of the inner wall of the pipe body 1, a corrosion-resistant pipe 5 is embedded in the inner wall of the pipe body 1. Preferably, the corrosion-resistant pipe 5 is made of a PVC material.

The above embodiments are only used for illustrating the technical solutions of the present application and not for limiting the same, and any modification or equivalent replacement without departing from the spirit and scope of the embodiments of the present application should be covered within the technical solutions of the present application.

Claims

1. A precast concrete pipe is characterized in that: comprises a pipe body (1), a fastener (2) and a first sealing ring (3);

the pipe bodies (1) are coaxially spliced end to end, positioning of adjacent pipe bodies (1) is realized through concave-convex matching, connecting flanges (11) extending outwards are arranged at two ends of each pipe body (1), and the connecting flanges (11) at the splicing positions of the adjacent pipe bodies (1) are connected through fasteners (2); the first sealing ring (3) is clamped between the connecting flanges (11) and provided with a yielding hole for the fastener (2) to penetrate through.

2. The precast concrete pipe as recited in claim 1, wherein: the pipe body (1) is characterized in that a protrusion (12) is arranged on the head end face of the pipe body (1), a groove (13) matched with the protrusion (12) correspondingly is arranged at the tail end of the pipe body, and the protrusion (12) of the adjacent pipe body (1) is inserted into the groove (13) to realize concave-convex matching.

3. A prefabricated concrete pipe according to claim 2, characterized in that: and a second sealing ring (4) is arranged at the bottom of the groove (13).

4. The precast concrete pipe as recited in claim 1, wherein: an anti-corrosion pipe (5) is embedded in the inner wall of the pipe body (1).

5. The precast concrete pipe as recited in claim 4, wherein: the anti-corrosion pipe (5) is made of PVC materials.