Composite connecting structure of concrete pipe lining and pipe inner wall

Abstract

The utility model relates to the technical field of concrete pipes, in particular to a concrete pipe lining and pipe inner wall composite connecting structure which comprises a lining body, a plurality of sets of T-shaped keys are arranged on the outer wall of the lining body, the T-shaped keys are circular T-shaped keys and straight T-shaped keys, the circular T-shaped keys are arranged at the two ends of the lining body, and the straight T-shaped keys are arranged at the two ends of the lining body. And the straight T-shaped key is arranged between the two groups of circular ring T-shaped keys. According to the utility model, the annular T-shaped keys are arranged at the two end parts of the lining body, and the plurality of groups of straight T-shaped keys are arranged between the annular T-shaped keys at the two ends, so that the risk that the lining falls off from the inner wall of the concrete pipe is reduced by utilizing the mode of the annular T-shaped keys and the straight T-shaped keys, and the combination between the lining and the inner wall of the concrete pipe is firmer and better in durability; according to the connection mode, the effect of transverse partition can be achieved, the problems of falling off and water leakage of the linings of the pipe joints are limited within the range of local pipe joints, only the local pipe joints need to be maintained during maintenance, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete pipe technology fields, concretely is a kind of concrete pipe lining and pipe inner wall composite connecting structure. BACKGROUND

[0002] In order to prevent the corrosion of acidic substances in sewage to concrete pipe, PVC lining composite concrete pipe is widely used.In the prior art, the lining of concrete pipe is provided as straight T-shaped key, since the extension direction of the strip is parallel to the pipe axis, the lining and the inner wall of reinforced concrete pipe are difficult to be closely combined, and a cavity is formed between the two straight T-shaped keys, when the concrete pipe cracks and leaks, especially in the area with high underground water level, the lining is easily subjected to a water pressure from outside to the pipe axis direction, the water pressure can reduce the flow area and reduce the water delivery capacity, if the water pressure exceeds the limit, the T-shaped key can be pulled off at weak point, and then "tearing cloth effect" is formed, the lining is pulled off, and the corrosion prevention effect is damaged.

[0003] Therefore, aiming at the above technical problems, a concrete pipe lining and pipe inner wall composite connecting structure is provided. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a concrete pipe lining and pipe inner wall composite connecting structure to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a concrete pipe lining and pipe inner wall composite connecting structure, comprising a lining body, a plurality of groups of T-shaped keys are arranged on the outer wall of the lining body, the T-shaped keys are circular T-shaped keys and straight T-shaped keys, the circular T-shaped keys are arranged at both ends of the lining body, and the straight T-shaped keys are arranged between the two groups of circular T-shaped keys.

[0006] As a preferred scheme, the T-shaped key is a screw T-shaped key, and the included angle between the strip of the screw T-shaped key and the pipe axis of the lining body is 60-89 degrees.

[0007] As a preferred scheme, the T-shaped key is a circular T-shaped key, and the included angle between the strip of the circular T-shaped key and the pipe axis of the lining body is 90 degrees.

[0008] From the above technical scheme provided by the utility model, it can be seen that the concrete pipe lining and pipe inner wall composite connecting structure provided by the utility model has the beneficial effects that:

[0009] The utility model discloses a circular ring T-shaped key is arranged at the both ends of the inner lining body, and a plurality of straight T-shaped keys are arranged between the circular ring T-shaped keys of the both ends, by the mode of circular ring T-shaped key plus straight T-shaped key, the risk of the inner lining falling off from the inner wall of the concrete pipe is reduced, the combination between the inner lining and the inner wall of the concrete is more firm, the durability is better, the anticorrosive effect of the concrete pipe is improved, and the above-mentioned connecting mode can also realize the effect of "horizontal partition", limits the inner lining falling off and the water leakage problem of the pipe section to the local pipe section, only needs to maintain the local pipe section when maintaining, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 It is inner lining connecting structure schematic diagram in the utility model;

[0011] Figure 2 It is inner lining connecting structure schematic diagram in one embodiment of the utility model;

[0012] Figure 3 It is inner lining connecting structure schematic diagram in one embodiment of the utility model.

[0013] In the drawing: 1, inner lining body;2, circular ring T-shaped key;3, straight T-shaped key;4, screw type T-shaped key. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is in combination with the drawing and example, and the utility model is further detailedly explained.It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0015] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0016] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0018] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific embodiments.

[0019] like Figure 1 As shown, this utility model embodiment provides a composite connection structure between a concrete pipe lining and the inner wall of the pipe, including a lining body 1. Several sets of T-keys are provided on the outer wall of the lining body 1. The T-keys are circular T-keys 2 and straight T-keys 3. The circular T-keys 2 are provided at both ends of the lining body 1, and the straight T-keys 3 are provided between the two sets of circular T-keys 2.

[0020] In this design, circular T-keys 2 are set at both ends of the inner lining body 1. The number of circular T-keys 2 can be set according to the actual situation. Multiple sets of straight T-keys 3 are set between the circular T-keys 2 at both ends. By using the combination of circular T-keys 2 and straight T-keys 3, it is prevented that there is only a single straight T-key 3 on the outer wall of the inner lining body 1. This reduces the risk of the inner lining falling off from the inner wall of the concrete pipe, makes the composite between the inner lining and the inner wall of the concrete more solid, has better durability, and improves the anti-corrosion effect of the concrete pipe. The above connection method can achieve the effect of "horizontal partition", which limits the problem of water leakage due to the lining falling off the pipe section to the local pipe section. During maintenance, only the local pipe section needs to be repaired, reducing maintenance costs.

[0021] In another embodiment, such as Figure 2 As shown, the T-key is a screw-type T-key 4, and the included angle between the screw-type T-key 4 and the inner lining body 1 tube shaft is 60-89 degrees.

[0022] Among them, a screw-type T-key 4 is set on the outer wall of the inner lining body 1. The included angle between the screw-type T-key 4 and the pipe axis of the inner lining body 1 can be adjusted between 60-89 degrees according to the actual situation. The setting of the screw-type T-key 4, using the form of a screw-type ring, realizes "transverse isolation", which limits the problem of water leakage due to lining detachment of the pipe section to a local pipe section, facilitating subsequent pipeline maintenance. In addition, the included angle between the screw-type T-key 4 and the pipe axis of the inner lining body 1 is 60-90 degrees, and the extension direction of the screw is set at an inclined angle with the pipe axis, so that the inner lining is more tightly bonded to the inner wall of the reinforced concrete pipe, reducing the risk of the entire inner lining detaching from the inner wall of the concrete pipe.

[0023] In another embodiment, such asFigure 3 As shown, the T-shaped key is a circular ring T-shaped key 2, and the included angle between the strip and the pipe axis of the lining body 1 is 90 degrees.

[0024] Among them, the T-shaped key on the outer wall of the lining body 1 is set to be a circular ring T-shaped key 2 with an included angle of 90 degrees between the strip and the pipe axis of the lining body 1. Compared with a straight T-shaped key, the circular ring T-shaped key 2 realizes "horizontal partition" by using a circular ring, which is beneficial to limit the lining falling and water leakage problem of the pipe section to a local pipe section. Moreover, since the extension direction of the strip is perpendicular to the pipe axis, the composite degree between the lining and the inner wall of the reinforced concrete pipe is higher, so that the composite between the lining and the inner wall of the concrete is more firm.

[0025] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A concrete pipe lining and pipe inner wall composite connecting structure, comprising a lining body (1), wherein a plurality of groups of T-shaped keys are arranged on the outer wall of the lining body (1), characterized in that: The T-shaped keys are circular ring T-shaped keys (2) and straight T-shaped keys (3), the circular ring T-shaped keys (2) are arranged at both end portions of the inner lining body (1), and the straight T-shaped keys (3) are arranged between the two groups of circular ring T-shaped keys (2).

2. A composite joint between a concrete pipe lining and a pipe wall according to claim 1, characterised in that: The T-shaped keys are screw type T-shaped keys (4), and the included angle between the screw type T-shaped keys (4) and the pipe axis of the inner lining body (1) is 60-89 degrees.

3. The composite connection of a concrete pipe liner to a pipe wall according to claim 1, wherein: The T-shaped keys are circular ring T-shaped keys (2), and the included angle between the circular ring T-shaped keys (2) and the pipe axis of the inner lining body (1) is 90 degrees.

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