Inserting retaining structure and prefabricated part combination
A prefabricated component and anti-retreat technology, which is applied in the direction of foundation structure engineering, construction, sheet pile walls, etc., can solve the problem that the insertion rod and the bending shrapnel cannot ensure the connection strength, and achieve the effect that the connection strength is satisfactory
Pending Publication Date: 2021-02-02
周兆弟
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Problems solved by technology
However, in the above structure, the insertion rod and the bent shrapnel cannot ensure the connection strength required for use
Method used
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[0035] In order to facilitate the understanding of the technical solution of the present invention, the following describes in detail in conjunction with the accompanying drawings and specific embodiments.
[0036] Such as figure 1 As shown, the present invention discloses a plug-in anti-retraction structure, including an outer casing 1, an insertion rod 2 and a stopper 3, wherein the outer casing 1 needs to be pre-embedded in a concrete prefabricated component, and connected and fixed on the concrete prefabricated component One end of the stress rib 4 in the middle, the stopper 3 is installed on the end of the outer casing 1 exposed from the concrete material, the stopper 3 is used to cooperate with the insertion rod 2, so that the insertion rod 2 is inserted into the outer casing in the forward direction After 1, it can be kept at the insertion position, and will not come out from the outer casing 1, so as to realize the function of plugging and anti-retraction. Wherein, th...
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The invention provides an inserting retaining structure. The inserting retaining structure comprises an outer sleeve body, an inserting rod and a stop part, wherein the outer sleeve body is fixedly connected to one end part of a stress rib, an inserting cavity is axially formed in the outer sleeve body, an inserting neck is formed at the part, close to a connecting plug, of the inserting rod, an axial blocking surface is formed between the inserting neck and the connecting plug, the rigid end of the stop part and the outer sleeve body are installed and fixed, the elastic end of the stop pieceextends into the inserting cavity to form a reverse stop end face, the stop part is provided with an inserting channel allowing the inserting plug to penetrate through in the forward direction, and the contact area S1 of the reverse stop end face and the axial stop face is larger than the cross section area S2 of the stress rib. According to the inserting retaining structure and the prefabricatedpart combination, the contact area S1 of the reverse stop end face and the axial stop face is larger than the cross section area S2 of the stress rib, so that when the inserting retaining structure achieves the anti-pulling function, even if the stress rib is pulled broken, the phenomenon that the elastic end of the stop part is pulled to be damaged or bent by the inserting rod is avoided, and theconnection strength of the inserting retaining structure can be ensured to meet the use requirements.
Description
technical field [0001] The invention relates to the technical field of concrete prefabricated components, in particular to a plug-in anti-retreat structure and a prefabricated component combination including the plug-in anti-retreat structure. Background technique [0002] For concrete prefabricated components, most products are not used alone. Therefore, after being prefabricated in the factory, they are transported to the site for construction and connected with the same or different prefabricated components according to the design requirements to form an overall component combination that meets the design requirements. [0003] Taking concrete prefabricated piles as an example, the previous connection method is to design end plates at both ends of concrete precast piles, so that the end plates of the upper and lower sections of precast concrete piles can be fixed by welding during connection. The specific construction method is to align the end plates of the upper and low...
Claims
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CPCE02D5/526
Inventor 周兆弟
Owner 周兆弟