KR200203399Y1 - Division type wrench - Google Patents

Abstract

The present invention relates to a split wrench that enables fast and accurate work in a small space and in a small space when fastening or detaching a screwed pipe joint used for pipe connection between relatively large diameter pipes. 1) is connected to the fixed housing (2a) and the hinged portion (3a) at one side of the fixed housing (2a) and integrally connected to the fixed housing (2a), and half of the fixed housing (2a) to the opening and closing housing (2b) In the wrench made of this, a pair of rotating bodies 5 and 5 'rotated in the groove portion 4 in the housings 2a and 2b has a worm gear 6 formed on the outer circumferential surface thereof so as to be perpendicular to the worm 8. The worm (8) is rotated through the fixed housing (2a), the holding ring (15) and the fixed ring (15 '), the hexagonal screw head (9) is formed at both ends, and the rotating shaft ( 7 is formed on the projection, and one side of the housing (2a) (2b) to press the pipe And stagnant 12 is projected, and is adjustable to the bolt pin (13) is characterized in that it is arranged onto the fixture 12 'is secured triangle.

Description

Split type wrench {Division type wrench}

The present invention relates to a split type wrench, and more particularly, a split type type that enables fast and accurate work with a small force when fastening or disconnecting a screwed pipe joint used for pipe connection between relatively large diameter pipes. It's about wrenches.

In general, pipe joints are used to connect pipes for various pipes, including water, gas, and heating. These pipe joints consist of a body, a tightening screw, and one or more bushings. To do this, a pipe wrench or a hexagon wrench is usually used.

When using a pipe wrench or a hexagon wrench in this way, the tightening screw and the body are made of an alloy of brass material, and the hexagonal head of the screw portion is crushed or scratched, thereby impairing the stability of the pipe or easily damaging the wrench to the vehicle body. In particular, this hexagon wrench or pipe wrench has a problem that the force is transmitted and applied in a state where the jaw of the wrench is in close contact with only two of the six faces of the joint, so that it is uniform on the periphery of the pipe joint. A torque could not be applied to prevent the smooth tightening and loosening rotation, resulting in more force and damage to the pipe.

In addition, the use of a pipe wrench or a hexagonal wrench is a mechanical work order in which the wrench is removed after the work has been bitten in the joint, and then the bite is asked again, which causes a delay in working time. There was a risk of the operator missing the tool during the operation, which could lead to an accident.

In order to solve this problem, there is disclosed and published patent application publication No. 1999-70312 (September 15, 1999). The structure of this invention is rotated to the hinge on one side of the fixed housing 102 and the fixed housing 102 fixedly connected to the handle 101 as shown in Figure 7, the housing 102 An open / closing opening / closing housing 102 ', the rotating body 103 being rotated in the housings 102 and 102' and a key 104 for selectively limiting the rotational direction of the rotating body 103. When used, the opening and closing the housing 102 'and the rotating body 103, the hexagonal surface in the rotating body 103 is in contact with the hexagonal head of the tightening screw to close the fixed housing and the rotating body, By adjusting the key 104 to determine the rotational direction of the rotating body 103 and repeating the up, down or forward, backward movement with the handle 101 to fasten or detach the pipe joint.

However, in the case of this design, there is a problem that the repetitive work of the forward, backward or up and down movement of the handle is difficult, and in particular, the work cannot be performed in a narrow work space.

The present invention was devised to solve the above problems, and an object of the present invention was to provide a means for working in a narrow space with very little force for fastening and detaching a large pipe joint, which is relatively laborious, and repeated. The present invention provides a means for performing the fastening and disengaging operation in a single bite state without biting and unloading, while providing a means for rotating and fastening only the pipe joint while biting the pipe joint and the pipe at the same time.

In order to achieve the above object, the present invention consists of a half fixed housing fixedly connected to the handle and a hinged opening on one side of the housing, the opening and closing housing which opens and covers the housing, and rotates in the housing. A worm gear is formed on the outer circumferential surface of the rotating body and is screwed to the orthogonal worm, and a fixture for pressing and fixing the pipe on one side of the housing is connected to the hexagonal head receiving portion of the pipe joint.

1 is a perspective view of the present invention

2 is an exploded perspective view of the present invention

3 is a cross-sectional view of the present invention Figure 1

Figure 4 is a side, cross-sectional view of the present invention Figure 1

5 is a perspective view showing a state of use of the subject innovation

Figure 6 is a side cross-sectional view showing a state of use of the subject innovation

7 is a view showing a structure of a rotating body of another embodiment of the present invention

8 is a perspective view of a conventional product

※ Explanation of codes for main parts of drawing

1: handle 2a: fixed housing

2b: opening and closing housing 3: hinge part

4 groove 5, 5 ': rotating body

6: worm gear 7: rotating shaft

8: worm 9: screw head

10: guide home 11 ': receiving unit

12,12 ': Fixture 13: Bolt pin

14: holding part 15: gripping ring

15 ': Retaining ring

Hereinafter, the present invention will be described in detail by the accompanying drawings, Figure 1 is a perspective view of the present invention, Figure 2 is an exploded perspective view of the present invention, Figure 3 is a positive, cross-sectional view of the present invention Figure 1, Figure 4 1 is a side, cross-sectional view of the present invention, Figure 5 is a perspective view showing a state of use of the present invention, Figure 6 is a side cross-sectional view showing a state of use of the present invention, Figure 7 is a rotating body structure of another embodiment of the present invention As shown in the figure, the wrench of the present invention is pivotally connected to the hinge part 3 at one side of the fixed housing 2a and the fixed housing 2a fixedly connected to the handle 1, and the fixed housing A pair of rotating bodies 5, 5 ', which is composed of half of the opening and closing housing 2b of the housing 2a, 2b, rotated in the recess 4 in the housing 2a, 2b, has a worm gear 6 on its outer peripheral surface. ) Is formed to be screwed orthogonal to the worm (8), the worm (8) is gripped with the fixed housing (2a) Hexagonal screw heads 9 are formed at both ends through the ring 15 and the fixing ring 15 ', and protrude on the pivot shaft 7 which is rotated. It consists of a pipe guide hole (10) and the hexagonal screw head receiving portion (11), one side of the housing (2a) (2b) is variablely fixed to the fixing body 12 and the bolt pin 13 for holding the pipe The variable fixture 12 'is formed so that the variable fixture 12' protrudes. The variable fixture 12 'is fixed to the bolt pin 13, and the holding member 14 is provided on the inner surface of the fixture 12 or 12'. It is comprised by the structure formed.

Reference numeral 16 is a fixing pin, 17 is a shaft pin of the hinge portion 3, 18 is a pipe joint.

Referring to the operation of the present invention configured as described above, first, by removing the fixing pin 16 and opening and closing the housing (2b) by rotating the shaft pin 17 of the hinge portion 3 to the shaft to open a pair of rotating bodies (5) ( 5 '), the pipe joint 18 and the hexagonal screw head receiving portion 11 are inserted into the rotating body 5 and 5' coincident with each other, and at the same time, the pipe joint 18 is opened and closed. (2b) is fitted to the fixing housing (2a) by a coupling fixing pin 16 to be fixed.

Then, the angular direction of the variable fixing body 12 ′ is directed to the opposite angle to the fastening or loosening of the pipe joint 18, and then fixed with a bolt pin 13 so as to press the pipe by the paper holding unit 14.

In this state, the hexagonal screw heads 9 at both ends of the rotating shaft 7, which penetrate the gripping ring 15, the fixing ring 15 ′, and the fixed housing 2a and are formed with the worm 8, protrude. When rotated, the worm gear 6 screwed to the worm 8 is rotated to rotate the rotators 5 and 5 'integrally therewith, and are formed on the inner surface of the rotators 5 and 5'. It rotates the pipe joint 18 accommodated by the hexagonal screw head accommodating part 11, and rotational drive of fastening or loosening is performed according to the rotational direction.

At this time, the rotating body (5, 5 ') is rotated in the surface contact of the same way as the sliding bearing in the groove 4 in the housing (2a) (2b), the size of the screw head receiving portion (11) By preparing to make, only the rotary body (5) (5 ') according to the pipe joint 18 of various sizes to be used to replace.

In this way, after fastening or detaching the pipe joint 18, when the wrench of the present invention is to be removed, the fixing pin 16 is pulled out again, and the opening and closing housing 2b and the rotating body 5 'are hinged ( Rotate the shaft pin (17) of 3) to the shaft to open the pipe and remove the pipe joint.

As described above, the present invention provides a hexagonal screw head receiving portion 11 formed inside the rotor 5, 5 ′, or a hexagonal screw head front surface of the pipe joint 18 at a receiving portion capable of accommodating the pipe. , Or the peripheral surface of the pipe is interviewed to be rotated by a uniform torque, so that it can be rotated even with a small force, and there is no fear that the outer surface of the pipe joint will be damaged or crushed. Separation operation may be performed sequentially, in particular, the present invention is a rotating body (5) (5 ') of the receiving portion 11 for interviewing the outer surface of the pipe joint with the worm gear 6 and the worm (8) screwed By rotating the hexagonal screw head 9 of the rotating shaft 7 in which the worm 8 is integrated, the worm 8 is fastened and detached, so that it can be rotated even with a very small force and the work can be easily performed even in a very small space. It has an effect.

Claims (1)

A half fixed housing 2a connected integrally with the handle 1 and connected to the hinge portion 3 at one side of the fixed housing 2a are rotated, and a half opening and closing housing 2b of the fixed housing 2a is connected. Wrench (6) in the housing (2a) (2b) is a pair of rotating bodies (5) (5 ') rotated in the groove portion (4) in the housing (2a) (2b) is formed on the outer peripheral surface of the worm gear (6) Is screwed at right angles to the worm, and the worm (8) passes through the fixing housing (2a), the holding ring (15) and the fixing ring (15 '), and has a hexagonal screw head (9) formed at both ends and rotated. Protrudingly formed on the coaxial (7), the fixing body 12 for pressing the pipe on one side of the housing (2a) (2b) protrudes, the fixed body 12 'is variable and fixed to the bolt pin (13) ) Is arranged in a triangular shape, and the paper holding portion 14 is formed on the inner side of the fixing body 12, 12 ', characterized in that