1. Field of Invention
The present invention relates to a hardware tool, and more particularly to a tool head device for crimping rings and clamps.
2. Description of Related Arts
It is well known that PEX pipe and aluminum plastic composite pipe are widely used as the conveying pipe of water supply, oil supply and gas supply. In general, the diameter of the pipe is ⅜ inch, ½ inch, ¾ inch, 1 inch and so on. Therefore, the interconnections among pipes are involved while installing these pipes. The most common pipe joint currently used by the public is a copper joint body having two symmetrical ends for inserting the PEX pipe or aluminum plastic composite pipe into the joint body, then a deformable annular fastener is fixed with the joint body by the clamping pliers, the fastener deforms during the fixation for tightly fixing the fastener with the outer wall of the PEX pipe or aluminum plastic composite pipe. However, the existing rings and clamps of the clamping pliers are detached from each other. There are the special crimping clamp pliers and crimping ring pliers. The crimping clamp pliers have the clamp head device, and the crimping ring pliers have the ring head device. It is inconvenient to use, and needs taking two tools while working, so it is not only inconvenient to carry, but also affects the efficiency of the construction.
An object of the present invention is to provide a tool head device for crimping rings and clamps, which has simple structure, convenient operation and is capable of improving the efficiency of the construction.
Accordingly, in order to accomplish the above object, the present invention provides a tool head device for crimping rings and clamps, comprising a clamp head member which is formed by connecting a left clamp head with a right clamp head via two covers, a clamp head shaft and two cover pins, characterized in that each of the left clamp head and the right clamp head has a clamp jaw for clamping the clamp at a top end thereof, each of the left clamp head and the right clamp head has a concaved inner sidewall at an end portion thereof, the concaved inner sidewall of the left clamp head and the concaved inner sidewall of the right clamp head form an insert cavity, an insert component is provided within the insert cavity, the other end of the left clamp head is connected with that of the right clamp head by connecting pins and connecting boards.
Preferably, the insert component comprises a left insert and a right insert, wherein the left insert and the right insert are connected with the left clamp head and the right clamp head respectively by an insert positioning shaft, an insert positioning plate and an insert driving pin.
Preferably, the clamp jaw is a protruding wedge-shaped jaw.
Preferably, each of the left clamp head and the right clamp head has a fastening hole and a mounting hole for mounting the insert, wherein the mounting hole is an inward concave groove, and a spring is provided within the groove.
Preferably, each of the left clamp head and the right clamp head has at least a technical hole for reducing the weight of the clamp head.
Preferably, each of the left clamp head and the right clamp head has a connecting hole at a bottom thereof for mounting the connecting boards.
Preferably, each of the left insert and the right insert has a half-oblong opening at a periphery thereof.
The advantages and positive effects of the present invention are shown as below. The present invention provides a tool head device integrating the clamp head device and the ring head device. It can be used to crimp rings and clamps. It has simple structure. Moreover, a tool using the present invention replaces two tools using the conventional structure, thereby reducing the cost, facilitating carrying, and improving the working efficiency. The insert component of the tool head device has an opening at the periphery thereof, a concaved platform is provided above the opening. While installing or replacing the insert, the insert driving pin is pressed, the insert is taken out, and then a new insert is installed, thereby the new insert is tightly fastened by the spring. The present invention has the simple operation, facilitates replacing the insert and improves the efficiency of installing.
These and other objectives, features, and advantages of the present invention will become apparent from the following detailed description, the accompanying drawings, and the appended claims.
In the drawings, 1: a clamp head member; 1-1: a left clamp head; 1-2: a right clamp head; 1-3: a clamp head shaft; 1-4: a wedge-shaped clamp jaw; 1-5: a technical hole; 1-6: a connecting hole; 1-7: a mounting hole; 1-8: a fastening hole; 2: an insert component; 2-1: a left insert; 2-2: a right insert; 2-3: an insert driving pin; 2-4: an insert positioning shaft; 2-5: an insert positioning plate; 2-6: a spring; 2-7: an opening; 3: a cover; 4: a cover pin; 5: a connecting board; 6: a connecting pin.
The present invention is further detailedly explained with the accompanying drawings.
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The working principle of the present invention is illustrated as below.
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The present invention can be used as not only a head device of a manual tool, but a head device of an electric tool. When the tool head device of the present invention is connected with a manual tool, the connecting boards 5 will be removed. When the tool head device of the present invention is connected with an electric tool, the tool head device of the present invention is directly connected with the electric tool.
One skilled in the art will understand that the embodiment of the present invention as shown in the drawings and described above is exemplary only and not intended to be limiting.
It will thus be seen that the objects of the present invention have been fully and effectively accomplished. Its embodiments have been shown and described for the purposes of illustrating the functional and structural principles of the present invention and is subject to change without departure from such principles. Therefore, this invention includes all modifications encompassed within the spirit and scope of the following claims.
Number | Date | Country | Kind |
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201020613800.8 | Nov 2010 | CN | national |