CN205129074U - Handsaw pull rod - Google Patents

Abstract

The utility model discloses a pull rod for a hand saw, which comprises a stepped pin, a spring piece and a pull rod, wherein the stepped pin is assembled in a stepped hole on the plane of the pull rod, and the thin end of the stepped pin is equipped with a clamping head, and the material used is spring steel The thin steel plate is made into a spring leaf in the shape of a question mark, which is fixed on the plane of the pull rod with screws to form a hand saw pull rod. The utility model has the advantages of simple structure and convenient use, and solves the problem that there is a gap between the installation hole of the saw blade and the plane of the pull rod.

Description

hand saw handle

technical field

The utility model belongs to the technical field of hand tools, in particular to a hand saw pull rod.

Background technique

A hand saw is a common tool used by fitters in sawing operations. There are fixed pull rods and movable pull rods at the front and rear ends of the saw bow, and pins are installed on the two pull rods. The saw blade is installed by using the mounting holes at both ends of the saw blade to cooperate with the pins. cutting operation. The fitter hand saw must ensure that the saw blade is tensioned during operation. The tension on the saw blade acts on the pins at both ends. Make the sides of both ends of the saw blade and the plane on the pull rod not close together, but leave a certain gap. This gap causes the saw blade to swing back and forth on the left and right sides of the sawing direction during sawing, making the saw kerf deviate from the drawn line. line, difficult to adjust.

Utility model content

The utility model overcomes the deficiency of the background technology, and provides a hand saw pull rod capable of closely adhering the saw blade and the pull rod plane together.

The design scheme adopted by the utility model is: a spring sheet made of a thin steel plate made of spring steel into a shape of a question mark is fixed on the plane of the pull rod with screws to form a whole pull rod, and an oval hole one week larger than the pin is arranged on the spring sheet. By penetrating the movable ladder pin installed on the pull rod, the saw blade is installed and tightened through the ladder pin on the pull rod, thus forming a novel hand saw pull rod.

The utility model has the advantages of simple structure, easy processing and production, and convenient use, and is suitable for all kinds of hand saws with the same installation method.

Description of drawings

Accompanying drawing 1 is the assembly structure schematic diagram of the utility model band section;

Accompanying drawing 2 is the top view of accompanying drawing 1 of the utility model;

Accompanying drawing 3 is the left sectional view of accompanying drawing 1 of the present utility model.

In the figure 1. Ladder pin, 2. Spring leaf, 3. Fixing screw, 4. Pull rod, 5. Chuck, 6. Saw blade.

detailed description

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

A hand saw pull rod, comprising a stepped pin 1, a spring leaf 2, and a pull rod 4, wherein the stepped pin 1 is assembled in a stepped hole on the plane of the pull rod 4, and the thin end of the stepped pin 1 is equipped with a chuck 5, which is riveted or The welding makes the ladder pin 1 and the chuck 5 integral, and the leaf spring 2 is fixed on the plane of the pull rod 4 by the screw 3, thus forming a novel hand saw pull rod.

The size of the stepped hole of the tie rod and the stepped pin of the utility model should match, there should be no excessive gap and the stepped pin can move freely in the stepped hole, the flat end plane of the stepped pin and the plane of the tie rod should be kept on the same plane or slightly lower , when the chuck is in contact with the pull rod, the thick end of the stepped pin is still matched with the thick end in the stepped hole of the pull rod, and the tail end of the spring piece is in contact with the vertical plane of the pull rod to prevent the spring piece from swinging when it is fixed by a single point of screw . When installing the saw blade, the saw blade 6 is inserted from the contact part between the spring piece and the pull rod plane, and observed from the oval hole in the middle of the spring piece, which is beneficial for the stepped pin to penetrate the saw blade installation hole and the oval hole, and the spring piece always acts on one part of the saw blade installation hole Pressure, so that the saw blade is in close contact with the plane of the pull rod, and prevents the saw blade from swinging left and right in the sawing direction, so as to ensure that the saw kerf is sawed along the scribed line, making it easier for the operator to master the sawing operation.

The above-described embodiments are only a further description of the utility model, and are not intended to limit the utility model in other forms. Any corresponding changes and deformations made by the utility model shall be included in the scope of patent protection of the utility model .

Claims (1)

1. a handsaw pull bar, comprise ladder pin (1), spring leaf (2), pull bar (4), it is characterized in that: ladder pin (1) is installed in described pull bar (4) shoulder hole, stationary spring (2) in pull bar (4) plane.