CN211029786U

CN211029786U - Oil pipe wrench

Info

Publication number: CN211029786U
Application number: CN201921016748.5U
Authority: CN
Inventors: 赖四正
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-07-17
Anticipated expiration: 2029-07-02

Abstract

The utility model relates to an oil pipe spanner, it is including the spanner head, and a grab handle, this spanner head is including the moving part and be the fixed jaw of the curved form of arc, the moving part pin joint in grab handle, the moving part makes up a torsion spring in addition with the grab handle, the application of force is when this moving part, this moving part is the state of opening with this fixed jaw, when removing the strength of applying in the moving part, this moving part is the closed condition with fixed jaw by this torsion spring drive recurrence, the work piece supports and leans on between moving part and fixed jaw, forward application of force is in this grab handle in order to pull this work piece, and this moving part supports because of receiving supporting of this work piece when reverse application of force is in this grab handle, this moving part and this fixed jaw open gradually and slide in this work piece periphery, borrow this structure the utility model discloses need not have numerous and diverse operating procedure as current oil pipe spanner generally.

Description

Oil pipe wrench

Technical Field

The utility model relates to an oil pipe spanner for screw and loosen the screw or the nut of machines, motor vehicle oil pipe and use.

Background

The oil pipe wrench is a wrench specially designed for screwing and loosening screws or nuts of oil pipes of machines and vehicles, and has the problem that the original open end wrench is larger than a target which is easy to deviate in the operation process, so that the wrench needs to be realigned.

The common oil pipe wrench and open spanner in the market generally have an opening, but the ends of the rib parts at two sides of the opening extend towards each other in an arc bending way, the opening of the oil pipe wrench is smaller than the opening of the open spanner, and the oil pipe wrench is used in a way that the head end is sleeved outside the oil pipe through the opening, and then the head end is moved to a workpiece (such as a screw, a nut and the like) along the oil pipe to perform screwing and unscrewing actions, and the design of the oil pipe wrench with a small opening when the oil pipe wrench is sleeved on the workpiece makes the head end not be separated from the target object through the opening, the oil pipe wrench must be moved to the oil pipe from the opening and separated from the oil rod through the opening to recover the oil pipe wrench, however, although the problem that the open spanner is easy to deviate from the target is solved, other devices are bound around the oil pipe in practical application, and the steps of firstly moving the head end of the oil pipe wrench to be sleeved on the target object must be performed, when the range of motion of the oil pipe wrench is obstructed, the head end displaces the oil pipe from the target object and swings the oil pipe wrench to an unobstructed position, and finally the head end of the oil pipe wrench is sleeved back to the target object to continue working, so that the complicated operation steps are the problems to be solved by various manufacturers at present.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the main technical problem lies in overcoming the above-mentioned defect that prior art exists, and provide an oil pipe spanner, and it is when screwing and loosening work piece and spanner swing to hindering wobbling position by equipment on every side, only need reverse application of force can swing the spanner to can continue forward application of force wobbling position, need not have numerous and diverse operating procedure like current oil pipe spanner.

The utility model provides a technical scheme that its technical problem adopted is:

an oil pipe wrench, wherein the oil pipe wrench comprises a handle and at least one wrench head, the at least one wrench head comprises a moving part and a fixed jaw in an arc shape, the handle is provided with a first end part, the fixed jaw extends integrally from the first end part, the fixed jaw forms a fixed head part at the extending tail end, the fixed jaw extends a plurality of fixed convex surfaces at intervals at one side of the inner bend, the first end part is provided with an inwards concave groove, the moving part is provided with a pivoting part, the pivoting part extends an occlusion jaw in an arc shape, the extending tail end of the occlusion jaw is a leaning part, the occlusion jaw extends a plurality of occlusion convex surfaces at intervals at one side of the inner bend, the pivoting part is pivoted with the first end part from the inside of the groove, the plurality of fixed convex surfaces, the plurality of occlusion convex surfaces and the first end part surround a working space, a torsion spring is combined in the pivoting part and the groove of the first end part, when force is applied to the moving part, the occlusion jaw and the fixed jaw are in an opening state, when the force applied to the moving part is relieved, the moving part is driven by the torsion spring to return, the abutting part abuts against the fixed head part, the occlusion jaw and the fixed jaw are in a closing state, when a working object is located in the working space, the plurality of occlusion convex surfaces and the plurality of fixed convex surfaces abut against the working object, the force is applied to the grab handle in a forward direction to pull the working object, when the force is applied to the grab handle in a reverse direction, the moving part is abutted against by the working object due to the occlusion jaw, and the occlusion jaw and the fixed jaw are gradually opened and slide on the periphery of the working object.

Wherein the fixed head part is provided with a head inner surface and a raised surface at one side of the fixed jaw inner bend, the raised surface is connected between the head inner surface and the adjacent fixed convex surface, and the abutting part abuts against the head inner surface and the raised surface respectively by two sides of a first arc-shaped surface when the occlusion jaw and the fixed jaw are in a closed state.

When the occlusion jaw and the fixed jaw are in a closed state, the second arc-shaped surface is not abutted to the raised surface, the working object is positioned in the working space and reversely applies force to the grab handle, the working object is partially abutted to the second arc-shaped surface, and the occlusion jaw and the fixed jaw are gradually opened and slide on the periphery of the working object.

The movable part is provided with a pressing part extending from one end with a pivoting part to the outer side of the first end part, one side of the occlusion jaw opposite to the plurality of occlusion convex surfaces is provided with an outer arc surface, the pressing part is provided with a pressing surface connected with the outer arc surface, and the pressing surface is distributed with a plurality of sliding stopping grooves arranged at intervals.

The pivoting part is provided with a containing groove, an opening is arranged in the groove of the containing groove facing the first end part, one part of the torsion spring is positioned in the containing groove and is abutted against the wall surface of the containing groove, and the other part of the torsion spring is exposed out of the opening and is abutted against the wall surface of the groove.

The opposite ends of the torsion spring are respectively a first elastic abutting part and a second elastic abutting part, the first elastic abutting part abuts against the wall surface of the accommodating groove, the second elastic abutting part abuts against the wall surface of the groove, the accommodating groove is provided with an extending rib, and the first elastic abutting part is positioned between the extending rib and the wall surface of the groove.

The beneficial effects of the utility model are that, it need only reverse application of force can swing the spanner to the wobbling position of can continuing forward application of force when screwing and loosening work piece and spanner swing to hindering wobbling position by equipment on every side, need not have numerous and diverse operating procedure like current oil pipe spanner generally.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a partially exploded view of the present invention.

FIG. 3 is a sectional view of the III-III line shown in FIG. 1.

Fig. 4 is a schematic view of the movable member applying force to open the biting jaw and the fixed jaw.

Figure 5 is a schematic view of a work piece located within the workspace.

FIG. 6 is a schematic view of forward force applied to the handle to drive the wrench head to rotate the workpiece.

FIG. 7 is a schematic view of the gripping handle being applied with a force in a reverse direction to slide the biting jaw and the fixed jaw around the periphery of the workpiece.

FIG. 8 is a schematic view of the handle being swung to allow the workpiece to be rotated.

The reference numbers in the figures illustrate:

1 oil pipe wrench

2 handle

21 first end part

22 groove

3 spanner head

4 fixed jaw

41 fixed convexity

42 fixed head

Inner surface of head 421

422 raised surface

5 moving part

51 pivot joint part

511 storage tank

5111 opening

5112 extending rib

52 bite jaw

521 occlusal convex surface

522 first arc surface

523 second arc surface

524 abutting part

525 extrados surface

53 pressing part

531 pressing surface

532 anti-slip groove

6 working space

7 torsion spring

71 first abutting part

72 second elastic part

8 work piece

Detailed Description

To understand the embodiments of the present invention in detail, please see the accompanying drawings, as shown in fig. 1 to 8, the present invention is an oil pipe wrench 1, wherein the oil pipe wrench 1 comprises a handle 2 and at least one wrench head 3, the at least one wrench head 3 comprises a movable member 5 and a fixed jaw 4 in an arc shape, the handle 2 has a first end portion 21, the fixed jaw 4 extends integrally from the first end portion 21, the fixed jaw 4 forms a fixed head portion 42 at the extending end, the fixed jaw 4 extends a plurality of fixed convex surfaces 41 at intervals at one side of the inner bend, the first end portion 21 has an inner concave groove 22, the movable member 5 has a pivot portion 51, the pivot portion 51 extends a jaw bite 52 in the arc shape, the extending end of the bite jaw 52 is an abutting portion 524, the bite jaw 52 extends a plurality of convex surfaces 521 at intervals at one side of the inner bend, the pivot portion 51 is pivoted to the first end portion 21 from the inside of the groove 22, a working space 6 is surrounded by the plurality of convex fixing surfaces 41, the plurality of convex occluding surfaces 521 and the first end portion 21, a torsion spring 7 is additionally assembled in the pivot portion 51 and the groove 22 of the first end portion 21, when a force is applied to the movable member 5, the movable member 5 is driven by the torsion spring 7 to return, the abutting portion 524 abuts against the fixed head portion 42, the engaging jaw 52 and the fixed jaw 4 are in a closed state, when a work piece 8 is located in the working space 6, the plurality of convex occluding surfaces 521 and the plurality of convex fixing surfaces 41 abut against the work piece 8, a positive force is applied to the work piece 2 to pull the work piece 8, and when a negative force is applied to the handle 2, the movable member 5 is abutted by the work piece 8 due to the convex occluding jaw 52, the occluding jaw 52 and the fixed jaw 4 are gradually opened and slide on the periphery of the workpiece 8, in this embodiment, the handle 2 has two wrench heads 3, the two wrench heads 3 have different sizes to correspond to workpieces 8 (such as screws, nuts, etc.) with different sizes, and according to the above structure, the utility model can swing the handle 2 without rotating the workpiece 8 and the wrench heads 3 from the workpiece 8, thereby achieving the efficacy of fast screwing and loosening the workpiece 8, and in addition, because the occluding jaw 52 and the fixed jaw 4 are slightly opened when the handle 2 is reversely applied with force, and the workpiece 8 is located in the working space 6, the fixed jaw 4, the occluding jaw 52 and the first end 21 are in an annular occluding structure surrounding the periphery of the workpiece 8, thereby avoiding the too large opening of the jaw 52 and the fixed jaw 4 when the handle 2 is reversely applied with force, stop the possibility that in-process wrench head 3 breaks away from work piece 8, and the application of force makes interlock jaw 52 and fixed jaw 4 be the structure of open mode in moving part 5, can make the utility model discloses a wrench head 3 can directly overlap to work piece 8, need not to overlap to oil pipe earlier like current general must, has reduced the operating procedure under the comparison.

The utility model discloses a fig. 5 shows, wherein the fixed head 42 has a head inner face 421 and a raised face 422 in the one side of the fixed jaw 4 inflexion, this raised face 422 links to between this head inner face 421 and adjacent fixed convex surface 41, should support the portion 524 and support with two sides of a first arcwall face 522 and support respectively in this head inner face 421 and this raised face 422 when this occlusion jaw 52 is the closed condition with this fixed jaw 4, this structure can make support the portion 524 more stable support and support in fixed head 42.

The utility model discloses as shown in fig. 6, wherein this fixed head 42 is protruding towards this workspace 6 inside and forms a second arc-shaped surface 523, this first arc-shaped surface 522 links to each other with this second arc-shaped surface 523, wherein when this interlock jaw 52 is the closed condition with this fixed jaw 4, this second arc-shaped surface 523 does not support and lean on in this uplifted surface 422, as shown in fig. 7, fig. 8, wherein this work piece 8 is located this workspace 6 inside and when reverse application of force is in this grab handle 2, this work piece 8 part supports and supports in this second arc-shaped surface 523, this interlock jaw 52 and this fixed jaw 4 open gradually and slide in this work piece 8 periphery, this structure makes work piece 8 support and support in moving part 5 more easily, moving part 5 is the easy action when reverse application of force grab handle 2.

The present invention is illustrated in fig. 1 to 4, wherein the movable member 5 has a pressing portion 53 extending from one end of the pivoting portion 51 to the outside of the first end portion 21, the engaging jaw 52 has an outer arc surface 525 on the side opposite to the plurality of engaging convex surfaces 521, the pressing portion 53 has a pressing surface 531 connected to the outer arc surface 525, the pressing surface 531 is distributed with a plurality of sliding stopping grooves 532 arranged at intervals, the pressing portion 53 is more easily structured to apply force to the movable member 5, and the plurality of sliding stopping grooves 532 have a non-slip effect.

In the present invention as shown in fig. 2 and 3, the pivot portion 51 has a receiving groove 511, the receiving groove 511 has an opening 5111 facing the recess 22 of the first end portion 21, one portion of the torsion spring 7 is located in the receiving groove 511 and abuts against the wall surface of the receiving groove 511, and the other portion is exposed from the opening 5111 and abuts against the wall surface of the recess 22, so that the torsion spring 7 is more stable during the operation process.

In the present invention, as shown in fig. 2 and 3, two opposite ends of the torsion spring 7 are respectively a first elastic supporting portion 71 and a second elastic supporting portion 72, the first elastic supporting portion 71 is abutted against the wall surface of the accommodating groove 511, the second elastic supporting portion 72 is abutted against the wall surface of the groove 22, the accommodating groove 511 has an extending rib 5112, the first elastic supporting portion 71 is located between the extending rib 5112 and the wall surface of the groove 22, and the structure of the extending rib 5112 further stabilizes the torsion spring 7 during the operation process.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims

1. An oil pipe wrench is characterized in that the oil pipe wrench comprises a handle and at least one wrench head, the at least one wrench head comprises a moving part and a fixed jaw in an arc shape, the handle is provided with a first end part, the fixed jaw extends integrally from the first end part, the fixed jaw forms a fixed head part at the extending tail end, a plurality of fixed convex surfaces extend at intervals at one side of the inward bend of the fixed jaw, the first end part is provided with a groove sunken inwards, the moving part is provided with a pin joint part, the pin joint part extends an occlusion jaw in the arc shape, the extending tail end of the occlusion jaw is an abutting part, a plurality of occlusion convex surfaces extend at intervals at one side of the inward bend of the occlusion jaw, the pin joint part is pin-jointed with the first end part from the inside of the groove, and a working space is surrounded by the plurality of fixed convex surfaces, the plurality of occlusion convex surfaces and the first end part, the pivot part and the groove of the first end part are additionally combined with a torsion spring, when force is applied to the movable part, the occluding jaw and the fixed jaw are in an opening state, when the force applied to the movable part is relieved, the movable part is driven by the torsion spring to return, the abutting part abuts against the fixed head part, the occluding jaw and the fixed jaw are in a closing state, when a work piece is positioned in the working space, the plurality of occluding convex surfaces and the plurality of fixed convex surfaces abut against the work piece, the positive force is applied to the grab handle to pull the work piece, and when the reverse force is applied to the grab handle, the movable part is abutted against by the work piece due to the occluding jaw, and the occluding jaw and the fixed jaw are gradually opened and slide on the periphery of the work piece.

2. The line wrench of claim 1, wherein the fixed head has a head inner surface and a raised surface on the side of the fixed jaw that is inwardly curved, the raised surface is connected between the head inner surface and the adjacent fixed convex surface, and the abutting portion abuts against the head inner surface and the raised surface with two sides of a first arc-shaped surface when the engaging jaw and the fixed jaw are in the closed state.

3. The line wrench of claim 2, wherein the fixed head protrudes toward the interior of the working space and forms a second curved surface, the first curved surface is connected to the second curved surface, wherein when the engaging jaw and the fixed jaw are closed, the second curved surface does not abut against the protruding surface, and wherein when the working object is located in the working space and the handle is applied with a force in a reverse direction, the working object partially abuts against the second curved surface, and the engaging jaw and the fixed jaw gradually open and slide around the periphery of the working object.

4. The oil pipe wrench as claimed in any one of claims 1 to 3, wherein the movable member has a pressing portion extending from one end of the movable member having the pivot portion to an outer side of the first end portion, the engaging jaw has an outer curved surface on a side opposite to the plurality of engaging convex surfaces, the pressing portion has a pressing surface connected to the outer curved surface, and the pressing surface is distributed with a plurality of sliding stopping grooves arranged at intervals.

5. The oil pipe wrench as claimed in any one of claims 1 to 3, wherein the pivot portion has a receiving groove, the receiving groove has an opening therein facing the recess of the first end portion, and a portion of the torsion spring is located inside the receiving groove and abuts against the wall surface of the receiving groove, and another portion is exposed from the opening and abuts against the wall surface of the recess.

6. The oil pipe wrench of claim 5, wherein the opposite ends of the torsion spring are respectively a first abutting portion and a second abutting portion, the first abutting portion abuts against the wall surface of the receiving groove, the second abutting portion abuts against the wall surface of the groove, the receiving groove has an extending rib, and the first abutting portion is located between the extending rib and the wall surface of the groove.