Novel automatic cover plate spring

Abstract

The utility model is applicable to the technical field of subway tunnel concrete duct piece prefabrication, and provides a novel automatic cover plate spring which comprises a spring body, the spring body is in a spindle shape, the two ends of the spring body are respectively provided with a drag hook, one end of each drag hook is inserted into the spring body and bent into a ring shape, and the other end of each drag hook is connected with the spring body. And the other end of the drag hook is positioned outside the spring body and is bent into a hook shape. By adopting the split type structural design, the problem that the bending part of the spring hook is easy to break can be effectively solved, the replacement operation is simple and safe, the spring hook is not easy to break, and the production efficiency is effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of prefabrication of concrete pipe segments in subway tunnels, and in particular relates to a novel automatic cover spring. Background Art

[0002] With the acceleration of my country's urbanization process, more and more cities have begun to build subways, and subway segments have come into being.

[0003] Segment production relies on the use of segment molds, and their production efficiency and safety are crucial. Automatic cover springs are one of the most frequently used components in segment molds. However, the automatic cover springs in existing segment molds are prone to breakage, making replacement time-consuming, labor-intensive, and unsafe, impacting customer production to a certain extent. Utility Model Content

[0004] The purpose of the embodiments of the present utility model is to provide a new automatic cover spring, aiming to solve the problems raised in the above background technology.

[0005] An embodiment of the utility model is implemented as follows: a new type of automatic cover spring includes a spring body, which is spindle-shaped. A hook is provided at each end of the spring body. One end of the hook is inserted into the interior of the spring body and bent into a ring shape, and the other end of the hook is located outside the spring body and bent into a hook shape.

[0006] According to a further technical solution, the spring body and the draw hook are both made of 55CrSi.

[0007] According to a further technical solution, the effective number of turns of the spring body is 16 turns.

[0008] According to a further technical solution, the surfaces of the spring body and the draw hook are treated to be black or blue.

[0009] The embodiment of the present utility model provides a new type of automatic cover spring. The device adopts a split structural design, which can effectively solve the problem of easy breakage at the bending part of the spring hook. The replacement operation is simple, safe and not easy to break, which effectively guarantees production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic structural diagram of a novel automatic cover spring provided by an embodiment of the utility model;

[0011] Figure 2 A schematic structural diagram of a new type of automatic cover spring provided in an embodiment of the utility model.

[0012] In the accompanying drawings: spring body 1; draw hook 2. DETAILED DESCRIPTION

[0013] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0014] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0015] like Figure 1 and 2 As shown, a new type of automatic cover spring provided by an embodiment of the utility model includes a spring body 1, which is spindle-shaped. A hook 2 is provided at each end of the spring body 1. One end of the hook 2 is inserted into the interior of the spring body 1 and bent into a ring shape. The other end of the hook 2 is located outside the spring body 1 and bent into a hook shape.

[0016] In this embodiment of the utility model, when in use, the hooks 2 at both ends are simply installed in the designated positions according to the usage method of conventional cover springs. By providing the spring body 1 and the hook 2 as a separate structure, the problem of the spring hook being easily broken at the bend is effectively solved, and the replacement operation is simple.

[0017] As a preferred embodiment of the present invention, the materials of the spring body 1 and the draw hook 2 are both 55CrSi.

[0018] As a preferred embodiment of the present invention, the effective number of turns of the spring body 1 is 16 turns.

[0019] As a preferred embodiment of the present invention, the surfaces of the spring body 1 and the draw hook 2 are treated to be black or blue.

[0020] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new type of automatic cover spring, characterized in that: The utility model comprises a spring body, which is spindle-shaped. A draw hook is respectively provided at both ends of the spring body. One end of the draw hook is inserted into the interior of the spring body and bent into a ring shape. The other end of the draw hook is located outside the spring body and bent into a hook shape.

2. The new automatic cover spring according to claim 1 is characterized in that: The spring body and the draw hook are both made of 55CrSi.

3. The new automatic cover spring according to claim 1 is characterized in that: The effective number of turns of the spring body is 16 turns.

4. The new automatic cover spring according to claim 2 is characterized in that: The surfaces of the spring body and the draw hook are subjected to blackening or bluing treatment.

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