CN2691791Y - pipe wrench - Google Patents

Abstract

A spanner for pipeline comprises a main body, wherein the head of the main body is pivoted with an upper clamp body and a lower clamp body which correspond to each other; the upper and lower clamping bodies are respectively provided with an upper and a lower clamping parts which are closed to form a closed plum blossom wrench, and the lower parts of the upper and lower clamping parts are respectively provided with an upper and a lower pivot fixing parts, so that a wrenching tool which can be used in a pipeline is completed by utilizing the difference of the pivot positions of the upper and the lower pivot fixing parts; the pivot fixing position of the upper clamp body is positioned at one side of the upper pivot fixing part far away from the upper clamp part, the pivot fixing position of the lower clamp body is positioned at one side close to the lower clamp part, and two end feet of a torsion spring are respectively inserted and fixed on the through holes of the upper pivot fixing part and the lower pivot fixing part. The utility model discloses not only can be better than current spanner in pulling efficiency, and have the plum blossom open the spanner can effectively screw the characteristic of impaired spiral shell spare to can be arranged in the plum blossom to open the pipeline that the spanner can't be used simultaneously, in addition, the user also can pull with action faster, more efficient when pulling.

Description

pipe wrench

technical field

The utility model relates to a hand tool, in particular to a wrench for pipelines which can be wrenched with faster and more efficient actions.

Background technique

At present, the wrenches used for pipelines generally use open-end wrenches. However, the open-end wrench needs to take the wrench away from the pipeline screw after each use, and then put the wrench on the pipeline screw in a posture suitable for wrenching to loosen or tighten the screw. Troublesome and time-consuming. To put it simply, the biggest disadvantage of the general open-end wrench is that when the screw is worn, only three sides are used to drive the screw, and it is bound to be difficult to turn the screw, resulting in operational difficulties. Although its structure is simple, there is such a common phenomenon. No matter whether it is used for pipelines or not, it is not favored by users because of the inconvenience in operation and the reduction of work efficiency.

In order to effectively and quickly solve the problems of the above-mentioned open-end wrench, the best way is to replace it with a crown wrench of the same specification. Because of its six-sided and closed design, even if the corners of the screw have been worn, It can still effectively drive the screw, and it is generally the best tool for worn screws.

However, the universal crown wrench, or ratchet wrench, cannot be used on pipes due to its closed design.

Therefore, the industry has also made improvements to the existing ratchet wrench, please refer to the attachment (Taiwan No. 510272 patent "Ratchet structure for pipe wrench that can be used as a brake", in which Figure 1 shows a general open-end wrench, Figure 2 It shows a pipe wrench with a slightly C-shaped head. Although its wrenching efficiency is better than that of ordinary open-end wrenches in use, it is still helpless if it encounters worn pipe screws. As shown in Figure 3, that is The structure of this patent is a C-shaped wrench, which houses a mobilization ratchet, which forms a C-shaped corresponding to the jaw, so that it can be used for continuous pulling operation, and the wrench can be used for reciprocating operations.

However, the above-mentioned patent produces a new problem, that is, at the beginning of each use, or after use, before the wrench is placed on the screw or removed from the screw, it is necessary to connect the head opening of the wrench with the screw. Mobilize the opening of the ratchet to make an alignment adjustment, and then disengage it or put it into the screw, making it inconvenient to use; and its structure is complicated and difficult to assemble, no matter in manufacture, assembly or use, it is not as good as Mei The closed type of the open wrench has high efficiency, convenience, and low cost.

Utility model content

In order to overcome the above-mentioned shortcomings of existing wrenches, the utility model provides a special wrench for pipelines, which is not only better than the existing wrench in wrenching efficiency, but also has the characteristic that the spanner wrench can effectively screw the damaged screw, and At the same time, it can be used in pipelines where the crown wrench cannot be used. In addition, when the user is pulling, the user can also pull it with a faster and more efficient action.

The technical scheme that the utility model solves its technical problem adopts is:

A wrench for pipelines, comprising a main body, the head of the main body is pivotally provided with two corresponding upper and lower clamping bodies; it is characterized in that the upper and lower clamping bodies are respectively provided with upper and lower clamping parts, After the upper and lower clamping parts are closed together, it becomes a closed spanner wrench. The upper and lower pivoting parts are respectively provided under the upper and lower clamping parts. The pivoting positions of the upper and lower pivoting parts are different to complete the completion. A wrenching tool used for pipelines; the pivoting position of the upper clamping body is located on the side of the upper pivoting part away from the upper clamping part, the pivoting position of the lower clamping body is set on the side close to the lower clamping part, a torsion spring, its The legs at both ends are respectively inserted and fixed on the perforations of the upper and lower pivotal parts.

In the aforementioned pipeline wrench, the upper pivotal position of the main body corresponds to the pivotal positions of the upper and lower clips.

The beneficial effect of the utility model is that the special design of the pivoting position enables it to engage and separate, and utilizes the elastic potential energy of the torsion spring to automatically recover after separation. After being closed, it is a closed design. It has better pulling efficiency than an open-end wrench. It can be used not only for general screws, but also for pipeline screws. There is no need to match the opening before and after use before placing it. the question of entry or exit. The utility model has the advantages of simple structure, easy assembly, convenient use and high practicability.

Description of drawings

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

Fig. 1 is the exploded schematic view of the utility model;

Fig. 2 is the combined schematic view of the utility model;

Fig. 3 is the top view of the utility model;

Fig. 4 is a schematic diagram of the pulling action of the utility model;

Fig. 5 is the schematic diagram of the separation action of the present utility model;

Fig. 6 is a schematic diagram of the separation action of the utility model shown in Fig. 5 .

Explanation of symbols in the figure:

10----main body 11----head

12----upper pivot hole 13----lower pivot hole

20----upper clamping body 21----upper clamping part

22----upper pivot 23----first pivot hole

24----first perforation 30----lower clip body

31----lower clamping part 32----lower pivot part

33----Second pivot hole 34----Second perforation

40----Rivet 50----Torsion Spring

Detailed ways

See also shown in Fig. 1, be the preferred embodiment of the present utility model, it mainly comprises a main body 10, and the head 11 of this main body 10 is provided with upper pivot hole 12 and lower pivot hole 13, and this upper and lower pivot hole 12 , 13 are respectively located at different positions of the head 11 up and down.

An upper clamping body 20 is provided with an upper clamping portion 21, the upper clamping portion 21 has a semicircular opening, the opening is provided with occlusal teeth, and an upper pivoting portion is located below the upper clamping portion 21 22. A first pivot hole 23 (away from the upper clamping portion 21) and a first through hole 24 (beside the first pivot hole 23) are provided at appropriate positions on the upper pivot portion 22, and a rivet 40 is used to correspond to the first The pivot hole 23 and the upper pivot hole 12 make the upper clip body 20 and the main body 10 in a pivotal relationship.

The lower clamp body 30 is provided with a lower clamping portion 31, which corresponds to the upper clamp body 20, and is also provided with a semicircular opening. The opening is provided with occlusal teeth. It is the lower pivot portion 32, which is provided with a second pivot hole 33 (close to the lower clamping portion 31) and a second through hole 34 (slightly below the second pivot hole 33) at an appropriate position on the lower pivot portion 32, by A rivet 40 corresponds the second pivot hole 33 to the lower pivot hole 13 , so that the lower clip body 30 is pivotally fixed on the main body 10 .

A torsion spring 50, the two ends of which are respectively inserted and fixed in the first through hole 24 and the second through hole 34, are used to restore the clip body to its original state.

The above is the relationship between the components of the utility model. The utility model utilizes the different positions of the upper clamp body 20 and the lower clamp body 30. When the screw is used as the force target, when it is rotated in a certain direction, the wrench can The upper and lower clips 20, 30 correspond to the normal rotation, and when rotating in the opposite direction, the two clips 20, 30 can be temporarily disengaged, and when the screw is loosened or tightened again, the torsion spring 50 will make the upper and lower clamping bodies 20, 30 retreat into the leaning state again, and the screw can be pulled.

Referring to Figure 4, Figure 5, and Figure 6, when in use, the two clips of the wrench can be opened and placed on the screw on the pipeline, and the clamping parts of the upper and lower clips 20, 30 will lean against the screw, And make the wrench become a closed type spanner wrench, because of its bite is a 360 degrees, so that its pulling efficiency is better than that of the open-end wrench. Please refer to Figure 4, when using the utility model to pull the screw to the dead angle, then turn the wrench in a reverse direction, please refer to Figure 5 and Figure 6, the two clips can be temporarily separated, and the two clamps can be temporarily separated. To the appropriate position, that is, continue to pull the screw. Moreover, if there is a worn screw, especially when the pipeline is used, the utility model can still effectively screw the damaged screw because of the characteristics of the crown wrench, especially when it is used for the pipeline, it has better wrenching efficiency.

Claims (2)

1, a kind of pipeline spanner comprises a main body, and the head of this main body is pivoted with two corresponding upper and lower clamps; It is characterized in that, be respectively equipped with upper and lower clamping part on the described upper and lower clamp, be a closed plum after the upper and lower clamping part closing and drive spanner, upper and lower clamping part below is respectively equipped with upper and lower pin fixed part, utilizes the position difference that is pivoted of upper and lower pin fixed part to finish a pulling tool that can use at pipeline;

The pivot maintenance set of upper clamp is in the side away from last clamping part of last pin fixed part, and the pivot maintenance of lower clamp is arranged in a close side of clamping part down, a torque spring, and its two ends pin is solidly plugged in respectively in the perforation of described upper and lower pin fixed part.

2, pipeline spanner according to claim 1 is characterized in that the pivot maintenance is put on the described main body to put corresponding with the pivot maintenance of upper and lower clamp.