CN204235464U - Variable-length sleeve extension rod - Google Patents

Abstract

The utility model discloses a kind of variable-length sleeve extension rod, it comprises the antitorque stud of slide bar, sleeve pipe, positioning stud and guiding, slide bar is assemblied in sleeve pipe, slide bar has gathering sill, positioning stud and the antitorque stud of guiding are threaded connection and are assemblied on sleeve pipe, and the head of the antitorque stud that leads is inserted in gathering sill.The utility model realizes the adjustable in length of sleeve extension rod, thus reduces the quantity of tool box inner sleeve extension bar.

Description

Variable Length Socket Adapters

technical field

The utility model relates to a sleeve connecting rod, in particular to a variable length sleeve connecting rod.

Background technique

With the development of the economy, the cost of labor is increasing day by day, and the requirements for the efficiency of tools are also increasing. In use, the socket wrench must be used in conjunction with the socket rod in order to reach far-reaching or narrow places. At present, the length of the sleeve adapter is fixed. When the sleeve is used, the toolbox must be equipped with sleeve adapters of different lengths, which increases the weight of the toolbox, and the replacement of different sleeve adapters also wastes work time.

Utility model content

The technical problem to be solved by the utility model is to provide a variable-length sleeve connecting rod, which realizes the adjustable length of the sleeve connecting rod, thereby reducing the number of sleeve connecting rods in the toolbox.

The utility model solves the above-mentioned technical problems through the following technical solutions: a variable-length sleeve connecting rod, which is characterized in that it includes a sliding rod, a sleeve, a positioning stud and a guiding torsion-resistant stud, the sliding rod Assembled in the casing, the slide bar is provided with a guide groove, the positioning stud and the guide anti-torsion stud are assembled on the casing through threaded connection, and the head of the guide anti-torsion stud is inserted into the guide groove.

Preferably, the guide groove is a triangular groove.

Preferably, the guide groove is a trapezoidal groove.

The positive progressive effect of the utility model is that: the utility model realizes that the length of the sleeve connecting rod can be adjusted, thereby reducing the quantity of the sleeve connecting rod in the toolbox. The adjustable length of the socket connecting rod will inevitably reduce the number of times of replacing the socket connecting rod, save the time for replacing the socket connecting rod, and increase the working efficiency.

Description of drawings

Fig. 1 is a structural schematic diagram of a variable-length sleeve connecting rod of the present invention.

Fig. 2 is a sectional view along the A-A direction of the positioning stud in Fig. 1 .

Detailed ways

The preferred embodiments of the utility model are given below in conjunction with the accompanying drawings to describe the technical solution of the utility model in detail.

As shown in Fig. 1 and Fig. 2, the variable-length sleeve connecting rod of the present invention includes a sliding rod 1, a casing 2, a positioning stud 3 and a guiding anti-torsion stud 4, the sliding rod 1 is assembled in the casing 2, The slide bar 1 is provided with a guide groove 5 , the positioning stud 3 and the guide anti-torsion stud 4 are assembled on the casing 2 through threaded connection, and the head of the guide anti-torsion stud 4 is inserted into the guide groove 5 . The guide groove is a triangular groove or a trapezoidal groove, as long as the guiding and anti-torsion functions are satisfied.

When the positioning stud 3 is loosened, the length of the variable-length sleeve connecting rod can be adjusted, and the sliding rod 1 can slide along the axial direction in the casing 2; after the positioning stud 3 is tightened, the sliding rod 1 and the sleeve The tube 2 is relatively fixed, and the length of the variable-length sleeve connecting rod is locked. When assembling the positioning stud 3 and the guide anti-torsion stud 4, ensure that the head of the guide anti-torsion stud must be inserted into the guide groove to prevent the relative rotation between the slide bar 1 and the sleeve 2. The utility model realizes that the length of the sleeve connecting rod can be adjusted, thereby reducing the quantity of the sleeve connecting rod in the tool box. The adjustable length of the sleeve connecting rod will inevitably reduce the number of times of replacing the sleeve connecting rod and increase the working efficiency.

The utility model has the following characteristics of the variable-length sleeve connecting rod: 1. The utility model adopts a sliding sleeve structure to realize the arbitrary adjustment of the length of the sleeve connecting rod within a certain range. The slide rod is assembled in the casing, and there is a guide groove on the slide rod. The positioning stud and the guide anti-torsion stud are connected to the casing through threads, and the head of the guide anti-torsion stud is inserted into the guide groove; when the positioning stud When loosened, the slide bar can slide along the axial direction in the casing, and after the positioning stud is tightened, the slide bar and the casing are relatively fixed, and the length of the sleeve connecting rod is locked. 2. The heads of the positioning studs and the guiding torsion-resistant studs are inserted into the guide grooves to block the relative rotation between the slide bar and the bushing and transmit the torque. 3. When the utility model is in use, since the guide groove of the slide bar, the positioning stud, and the guide anti-torsion stud bear a large rotational moment, long-term use will inevitably lead to greater wear and tear, so the surface of the guide groove must be hardened. The part where the positioning stud and the guide anti-torsion stud are inserted into the guide groove is also subjected to surface hardening treatment.

Those skilled in the art can make various modifications and changes to the utility model. Therefore, the present invention covers various modifications and changes within the scope of the appended claims and their equivalents.

Claims (1)

1. a variable-length sleeve extension rod, it is characterized in that, it comprises the antitorque stud of slide bar, sleeve pipe, positioning stud and guiding, slide bar is assemblied in sleeve pipe, slide bar has gathering sill, positioning stud and the antitorque stud of guiding are threaded connection and are assemblied on sleeve pipe, and the head of the antitorque stud that leads is inserted in gathering sill, and described gathering sill is vee gutter or dovetail groove.