Stud-fitting wrench

Abstract

The utility model discloses a double -end stud assembly spanner, including tool main part and with cooperation's stop screw rod. Tool main part both sides are equipped with auxiliary handle, and the handle top is equipped with handle, and the handle below is connected with a pair of drive short pole, and is symmetrically distributed in the stop screw rod both sides, auxiliary handle before and after, is used for handle rotation when drive auxiliary handle rotation. The utility model mainly is used to the assembly of double -end stud, uses, and rotates handle not only can compress double -end stud fastening end, and can make double -end stud fast spin into one of the connected member, and the stop nature is strong, and the operation is convenient, and when withdrawing spanner, the handle is rotated in the opposite direction, can make double -end stud fastening end and stop screw rod contact again, and can withdraw spanner, saves the operation time, and has improved work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, specifically to a double-ended stud assembly wrench. Background Technology

[0002] Double-ended studs are widely used in various internal combustion engines, mining machinery, hoisting machinery, steel structures, automobiles, motorcycles, and various mechanical assembly applications where one of the connected parts is relatively thick, making it inconvenient to machine through holes, and frequent disassembly is required.

[0003] During the assembly of studs, the insertion end of the stud needs to be screwed into the threaded hole of one of the connected parts. As the screwing progresses, the engagement length of the internal and external threads increases, leading to increased friction and making insertion difficult. Large tolerances in the threaded hole machining, rust, and dust exacerbate this situation. At this point, it is difficult to screw the stud into the designated position using only manual force. Because the two ends of the stud are threaded and the middle is a smooth shank, ordinary tools cannot be used to tighten it.

[0004] In practice, the "double-nut method" is often used to solve the assembly problem of double-ended studs. This method involves screwing two nuts into the fastening end of the double-ended stud and locking them together (commonly known as "back-locking"). Under the action of friction, the two nuts are locked to the stud as a single unit. Then, a wrench is used to turn the upper nut, which, in turn, screws the stud into the designated position in the threaded hole. After screwing, both nuts are removed. This method is cumbersome, time-consuming, inefficient, and easily damages the threads. Summary of the Invention

[0005] This utility model provides a double-ended stud assembly wrench, which aims to solve the problems of cumbersome operation, low efficiency, and thread damage during the assembly of double-ended studs.

[0006] This utility model achieves its invention objective using the following technical solution:

[0007] A double-ended stud assembly wrench includes a tool body and a locking screw that cooperates with it.

[0008] Preferably, the tool body is provided with auxiliary handles on both sides, and a handle is provided above the stop screw.

[0009] Preferably, a pair of short driving rods are connected below the handle and are symmetrically distributed on both sides of the stop screw and in front of and behind the auxiliary handle, so as to drive the auxiliary handle to rotate when the handle is rotated.

[0010] This utility model provides a double-ended stud assembly wrench. The tool body has auxiliary handles on both sides for assisting in tightening and loosening the double-ended stud's fastening end and the stop screw. A pair of short driving rods are connected below the handles and symmetrically distributed on both sides of the stop screw and before and after the auxiliary handles. These rods rotate the auxiliary handles when the main handle is turned. The process of disengaging the stop screw from the double-ended stud's fastening end and withdrawing the tool is combined into one process, saving auxiliary time and improving work efficiency. Furthermore, the force applied to the double-ended stud's fastening end by this tool is the locking force of a threaded connection, which will not damage the external threads of the double-ended stud's fastening end. Attached Figure Description

[0011] Figure 1 This is the front view of this utility model.

[0012] Figure 2 This is a top view of the present invention.

[0013] Figure 3 This is the left view of this utility model.

[0014] Figure 4 This is a cross-sectional view of the present invention.

[0015] Figure 5 This is a structural diagram of the present invention. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] As shown in the figure, this utility model provides a double-ended stud assembly wrench, including a tool body and a locking screw that cooperates with it. Auxiliary handles are provided on both sides of the tool body, and a handle is located above the locking screw. A pair of driving short rods are connected below the handles and are symmetrically distributed on both sides of the locking screw and in front of and behind the auxiliary handles, used to drive the auxiliary handles to rotate when the main handle is rotated.

[0019] This utility model provides a double-ended stud assembly wrench. The tool body has auxiliary handles on both sides for assisting in tightening and loosening the double-ended stud's fastening end and the stop screw. A pair of short driving rods are connected below the handles and symmetrically distributed on both sides of the stop screw and before and after the auxiliary handles. These rods rotate the auxiliary handles when the main handle is turned. The process of disengaging the stop screw from the double-ended stud's fastening end and withdrawing the tool is combined into one process, saving auxiliary time and improving work efficiency. Furthermore, the force applied to the double-ended stud's fastening end by this tool is the locking force of a threaded connection, which will not damage the external threads of the double-ended stud's fastening end.

[0020] When using the tool, first screw the fastening end of the double-ended stud into the tool body until the end of the fastening end of the double-ended stud contacts the end of the stop screw. Then, turn the handle to screw the insertion end of the double-ended stud into the part to be connected. After screwing, hold the auxiliary handle in place by hand and turn the handle in the opposite direction. During the rotation, the end of the stop screw will naturally disengage from the fastening end of the double-ended stud. Continue to turn the handle in the opposite direction to remove the wrench and complete the assembly.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A double-ended stud assembly wrench, characterized in that: It includes a tool body (1) and a stop screw (2) that cooperates with it; the tool body (1) is provided with auxiliary handles (11) on both sides, the stop screw (2) is provided with a handle (21) on the upper part, and a pair of driving short rods (22) are connected below the handle (21). The driving short rods (22) are symmetrically distributed on both sides of the stop screw (2) and in front and behind the auxiliary handles (11), and are used to drive the auxiliary handles (11) to rotate synchronously when the handles (21) rotate.

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