CN202418174U - Novel easily-detached double-head bolt - Google Patents

Abstract

The utility model discloses a novel easy-to-disassemble stud bolt, which comprises a screw rod (1) and a thread (2). Both ends of the bolt are provided with threads (2), and the top of one end of the bolt has a groove (3). (1) There is a shallow groove (4) in the middle. By using the stud bolt of the utility model, commonly used tools can be used as a tool for single-head tightening or disassembly of the stud bolt, which greatly increases the ease and convenience of disassembly; when the stud bolt is tightened, it can avoid the traditional use of the backrest The damage of the screw to the thread can ensure the tightness of the bolt.

Description

New easy-to-remove stud bolts

technical field

The utility model relates to a mechanical part, in particular to a novel stud bolt which is easy to disassemble and assemble.

Background technique

Bolts specifically refer to screws with a larger diameter, a type of fastener consisting of a head and a screw (a cylinder with external threads), which need to be matched with a nut to fasten and connect two through holes. parts. This connection form is called bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. Bolts can also have no head, such as double-ended bolts, also known as double-ended studs. The most common form of stud is threaded at both ends and a polished rod in the middle. The most typical use: anchor bolts, or places similar to anchor bolts, thicker connections, when ordinary bolts cannot be used. the

There are many places where stud bolts are used in reality, but in order to protect the thread during installation, it is difficult to ensure the tightness of the first tightened end.

Contents of the invention

A novel easy-to-disassemble stud bolt disclosed by the invention can not only ensure the tightening degree, but also protect the screw thread to a large extent. The specific technical solutions are:

A novel easy-to-remove stud bolt includes a screw rod 1 and a thread 2, and both ends of the bolt are provided with threads.

There is a groove 3 on the top of one end of the stud bolt, and the manufacturing method can utilize the existing casting or stamping technology to cast or punch out the groove 3;

The groove 3 is in-line, cross, or star-shaped.

A shallow groove 4 is opened in the middle of the screw rod 1 of the stud bolt.

Using the stud bolt of the utility model, common tools (such as screwdrivers and wrenches) can be used as tools for single-head tightening or disassembly of the stud bolt, which greatly increases the ease and convenience of disassembly;

When the stud bolts are tightened, it can not only avoid the damage to the thread caused by the traditional use of back screws, but also ensure the tightening degree of the bolts.

Description of drawings

Figure 1 Normal commercially available studs.

Figure 2 and Figure 3 are the new easy-to-remove stud bolts.

Among Fig. 1, Fig. 2, Fig. 3, 1 is a screw rod, 2 is a thread, 3 is a groove, and 4 is a shallow groove.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further explained.

Example 1

A novel easy-to-remove stud bolt, as shown in Figure 2, includes a screw rod 1 and a thread 2, and both ends of the bolt are provided with threads. There is a groove 3 on the top of one end of the bolt, and the manufacturing method can utilize existing casting or stamping technology to cast or stamp out the groove 3; the groove 3 is in-line, cross, or star-shaped.

When one end of the double thread is tightened to the fixed threaded hole, the thread of this design can be used as a screw in the general sense, and the screwdriver acts on the groove 3 to tighten the bolt to the threaded hole for the initial torque.

Example 2

A new type of easily dismountable stud bolt, as shown in Figure 3, includes a screw rod 1 and a thread 2, and both ends of the bolt are provided with threads. There is a shallow groove 4 in the middle of the screw rod 1 .

When tightening one end of the double-threaded thread to the fixed threaded hole, the stud bolt of this design can be regarded as a single-headed bolt in the general sense, and a wrench acts on the shallow groove 4 as the initial torque to tighten the bolt to the threaded hole.

Example 3

A novel easy-to-disassemble stud bolt includes a screw rod 1 and a thread 2, and both ends of the bolt are provided with threads. There is a groove 3 on the top of one end of the bolt, and the manufacturing method can utilize existing casting or stamping technology to cast or stamp out the groove 3; the groove 3 is in-line, cross, or star-shaped. A shallow groove 4 is arranged in the middle part of the screw rod 1 of the bolt.

When one end of the double thread is tightened to the fixed threaded hole, the thread of this design can be used as a screw in the general sense, and the screwdriver acts on the groove 3 to tighten the bolt to the threaded hole for the initial torque.

Alternatively, when one end of the double-threaded thread is tightened to the fixed threaded hole, the stud bolt of this design can be regarded as a single-headed bolt in the general sense, and a wrench acts on the shallow groove 4 as an initial torque to tighten the bolt to the threaded hole.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (1)

1. a novel stud bolt easy to assemble comprises screw rod (1) and screw thread (2), it is characterized in that the two ends of said bolt are equipped with screw thread (2); One end top of said stud bolt has groove (3); Described groove (3) is a yi word pattern, cross or star-like; The screw rod of said stud bolt (1) middle part has shallow slot (4).

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