WO2012037737A1

WO2012037737A1 - Environment-friendly multi-rabbet safety hand-operated tool

Info

Publication number: WO2012037737A1
Application number: PCT/CN2010/077335
Authority: WO
Inventors: 王�华
Original assignee: Wang Hua
Priority date: 2010-09-26
Filing date: 2010-09-26
Publication date: 2012-03-29

Abstract

An environment-friendly multi-rabbet safety hand-operated tool includes a tool handle (100) whose one end is provided with an assembling seat (102), and a tool head (200) provided with a structure matched with the assembling seat (102). The tool head (200) is inserted into the assembling seat (102) and locked by a transverse locking bolt (10). The assembling seat (102) is provided with an assembling rabbet (104) and at least one positioning rabbet (103). The tool head (200) is provided with holes (204) matched with the assembling rabbet (104) and the positioning rabbet (103). Said hand-operated tool needs only one tool handle to substitute different tool heads according to the various requirements. The design and assembly of the hand-operated tool ensure the safety and reliability of the tool during use.

Description

Environmental protection multi-head safety hand tool

Technical field

The invention relates to a hand tool, in particular to an environmentally friendly multi-birch safety manual tool. Background technique

At present, the traditional hand tools have the following problems: 1. The use of wooden handles results in a reduction in forest cover area, continuous damage to the ecological environment, and certain impacts on soil erosion, drought, floods, and climate. 2. The use of fiberglass handles. Glass fiber is a disposable plastic product, which is non-recyclable, non-recyclable, has serious environmental pollution, and has great destructive power to natural resources. Third, the traditional hand tool is basically a fixed handle and head, so the scope of use is narrow; The operation requires a variety of tools, carrying troubles, large storage space, and high cost of purchase; Fourth, the assembly structure of the traditional hand tools is flawed, and the tool head falling off and the broken handle phenomenon may occur during use, posing a safety hazard. Summary of the invention

In order to overcome the deficiencies in the prior art, the present invention provides an environmentally friendly multi-birch safety hand tool. The environmental protection multi-birch safety hand tool adopts a plastic or metal material which is recyclable and recyclable, and solves the problem of contamination of the glass fiber handle. The front end of the handle is provided with a locking bolt, which can be used as a mounting bolt for the tool head and the tool shank, and enhances the bending strength of the tool shank. With just one handle in hand, replacing the tool head can be a suitable tool depending on the operation. The invention can also solve the safety of the traditional tool caused by the falling off of the tool head or the broken handle. Full question.

The environmentally-friendly multi-birch safety hand tool of the present invention comprises a tool handle and a tool head, and a fitting seat is provided at one end of the tool handle, and the tool head has a structure matched with the mounting seat, and the tool head is inserted into the assembly seat, It is also fastened with a transverse locking bolt.

In a specific embodiment of the present invention, the assembly seat has an assembled birch head, the tool head has a hole for mating with the assembled birch, and the locking bolt is assembled by assembling the birch A preset nut fit in the tool holder secures the tool head and the tool shank.

In still another embodiment of the present invention, the assembly seat has an assembly birch and at least one positioning birch, the tool head having a hole for mating with the assembled birch and the positioning birch, and The locking bolt fastens the tool head and the tool shank by fitting the birch head with a preset nut in the tool shank.

The assembled birch or positioning birch may be a cone, or an ellipsoid, a polygon, or the like having a slope.

If necessary, if a heavier tool head is used, it is also possible to provide a reinforcing screw to the tool holder and the tool head on the side of the mount and the tool head to increase the joint strength between the two.

The tool handle of the present invention can adopt a hollow shock-proof curved handle or a straight shank.

In order to meet the needs of changing a variety of tool heads, the shape and size of the mounting portion of the tool head to be installed should match the shape and size of the corresponding mounting portion of the end of the tool shank to ensure that the tool head is in place. When it is secure. Among them, the tool head can be used with a variety of hammers, axes, axes and other manual tool heads.

The tool handle of the environmental protection multi-birch safety hand tool adopts a green material with certain strength and toughness, such as metal material, plastic, etc., which can be repeatedly processed or regenerated. use.

The invention has the following advantages: 1. According to the operation requirement, the tool head can be replaced arbitrarily and conveniently, and is convenient and convenient; the multi-purpose handle can save a large amount of the handle material, reduce the tool purchase cost, and can be made into a set tool box, which is convenient to carry and use. , reduce storage space. 2. Change the traditional assembly method, the tool head is fastened on the tool handle, does not fall off, the handle is continuous, and it is safe and reliable. 3. The invention is comfortable to use due to the use of a hollow plastic handle having a shock absorbing effect. DRAWINGS

1 is an exploded perspective view of an environmentally-friendly multi-birch safety hand tool according to the present invention; FIG. 2 is an enlarged perspective view of the assembled portion of the eco-friendly birch safety hand tool head and the tool handle of FIG.

3 is a longitudinal sectional view of the environmentally-friendly multi-birth safety hand tool assembled in FIG. 1; FIG. 4 is a schematic exploded view showing another environmentally-friendly multi-birch safety hand tool according to the present invention; An enlarged perspective view of the assembly part of the tool head and the tool handle of the birch safety hand tool;

6 is a longitudinal cross-sectional view of the assembled environmentally friendly multi-birch safety hand tool of FIG. 4; FIG. 7 is a partial assembly exploded view of a hand tool with a reamable tool head with reinforcing screws according to the present invention;

Figure 8 is a schematic illustration of some of the tool heads that may be employed in the present invention. detailed description

The invention will be further described below in conjunction with the accompanying drawings. It is to be understood that the particular embodiments of the invention described herein are not to be construed The scope of the invention is defined by the appended claims.

The longitudinal direction of the present invention refers to the longitudinal direction of the A4 paper used for drawing the drawings, and the transverse direction refers to the direction perpendicular to the longitudinal direction.

1 is a schematic exploded view showing the assembly of an environmentally-friendly multi-birch safety hand tool according to the present invention. As shown in FIG. 1, the tool comprises: a tool handle 100, a tool head 200, and a locking bolt 10; the tool handle 100 has a mounting base 102 at one end thereof, and the mounting base 102 is provided with a fitting birch 104; The shape and dimensions are mated with the mounting base 102 and have a birch hole 204 (shown in FIG. 2) corresponding to the assembled birch 104 and a counterbore 202 for mounting the locking bolt 10. The counterbore 202 communicates with the birch hole 204.

The assembled birch 104 can be designed as a cone, or an ellipsoid with a slope, a polygon, or the like. The birch hole 204 is designed to be shaped to fit the bead 104.

During installation, after the tool head 200 is inserted into the mounting base 102, the tool head countersunk hole 202 is inserted into the tool head countersunk hole 202, the birch hole 204 and the fitting hole 1041 in the assembly birch 104 and the nut preset in the hollow tool shank. 20 (see Figure 3) Locked.

Preferably, in order to prevent the lock bolt 10 from being rusted and eddy, and to increase the appearance, the end cover 30 may be capped at the head of the lock bolt 10. The end cap 30 can be made of anti-rust material such as plastic or stainless steel.

Figure 3 is a longitudinal cross-sectional view of the assembled environmentally friendly multi-birch safety hand tool of Figure 1. It can be seen from Fig. 3 that the tool head of the assembled tool of the present invention can not only move longitudinally, but also ensures that it is not loose when hitting, and is laterally locked by the tightening bolt, and the tool head is not Move laterally to ensure that it does not fall off and that it is safe to use.

Figures 4, 5, and 6 show another environmentally friendly multi-birch safety hand tool of the present invention. In contrast to the hand tools of Figures 1, 2, 3, the assembly block 102 has two positioning gems 103 in addition to the assembled gems 104. Correspondingly, the tool head 200 is provided with a positioning beech aperture 203 that cooperates with the positioning birch 103. The purpose of designing the birch 103 is not only to position it, but also to improve the joint strength between the tool head and the tool shank, making the tool more stable and durable.

Of course, the number of positioning birch heads 103 can be flexibly designed according to the shape of the tool head, at least one, preferably using a plurality of positioning birch heads symmetrically distributed on both sides of the assembled birch head 104.

For the relatively heavy tool head, a reinforcing screw 40 is disposed on the side of the mounting base 102 and the tool head 200 to connect the tool shank 100 and the tool head 200 to increase the connection strength between the two, as shown in FIG. Show.

Fig. 8 shows a partial tool head of the environmentally friendly multi-birch safety tool of the present invention. For different purposes, hammers 200, 400, 500, 600, 700 and axe 300.

Because of the different shapes of different hammers or axes in FIG. 8, the assembly base 102 of the present invention can be designed to have a square shape matching the shape of the tool head, and can also be designed to match the shape of the tool head. Achieve beautiful results.

In order to reduce the overall weight of the tool, the hollow shock-proof bending handle/straight shank 100 is integrally formed by green environmentally-friendly engineering plastics, or separately manufactured and assembled. During use, in order to prevent the tool from slipping, the back end of the tool handle 100 can be designed with various anti-slip patterns 101, as shown in Fig. 1 and Fig. 4.

Since the tool head and the tool shank of the hand tool of the present invention are designed to cooperate with each other, The standard structure is easy to install. Therefore, as long as one handle is in hand, different tool heads can be replaced as needed, which not only saves the purchase cost of the traditional tools, but also facilitates storage and carrying. At the same time, the design and assembly of the hand tool of the present invention ensures that the tool does not fall off during use, which is both reliable and safe.

Based on the description of the preferred embodiments of the present invention, it is to be understood that the invention is not limited by the details of the invention described herein. Obvious changes are equally likely to achieve the objectives of the present invention.

Claims

Rights request

1 . An environmentally-friendly multi-birch safety hand tool, comprising a tool handle and a tool head, characterized in that: a tool holder is provided at one end of the tool handle, and the tool head has a structure matched with the assembly seat, the tool head Insert into the mount; and tighten with a transverse locking bolt.

2 . The environmental protection multi-birth safety hand tool according to claim 1 , wherein the assembly seat has an assembled birch head, and the tool head has a hole matched with the assembled birch head. And the locking bolt fastens the tool head and the tool shank by fitting the birch head with a preset nut in the tool shank.

3 . The environmental protection multi-birth safety hand tool according to claim 2 , wherein the assembly seat further comprises at least one positioning birch, and the tool head is provided with the positioning birch Fitted holes.

The environmentally-friendly multi-birch safety hand tool according to claim 2 or 3, wherein the assembled birch or the positioning birch is a cone, or an ellipsoid or a polygonal body with a slope .

5. An environmentally friendly multi-birch safety hand tool according to claim 2 or 3, wherein a reinforcing screw is attached to the side of the fitting seat and the tool head to connect the tool shank and the tool head.

6. An environmentally friendly multi-birch safety hand tool according to claim 2 or 3, wherein an end cap is capped on the head of the locking bolt, and the end cap is made of plastic or stainless steel. production.

7. An environmentally friendly multi-birch safety hand tool according to claim 2 or 3, wherein the tool handle is a hollow curved handle or a straight shank.

8. An environmentally friendly multi-birch safety hand tool according to claim 7, wherein said tool handle is made of engineering plastic or metal material.

9. An environmentally friendly multi-birch safety hand tool according to claim 2 or 3, wherein the tool head is a variety of hammers or axes.