CN202753075U

CN202753075U - Wrench for pipelines

Info

Publication number: CN202753075U
Application number: CN 201220378581
Authority: CN
Inventors: 戚东涛; 李厚补; 毛学强; 蔡雪华
Original assignee: China National Petroleum Corp; CNPC Tubular Goods Research Institute
Current assignee: China National Petroleum Corp; CNPC Tubular Goods Research Institute
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2013-02-27
Anticipated expiration: 2022-07-31

Abstract

The utility model discloses a wrench for pipelines, and belongs to the field of hand-operated tools. The wrench for the pipelines comprises a handle, a clamping sleeve and hinge-joint pieces, wherein the clamping sleeve and the hinge-joint pieces are connected with the handle which comprises a connecting portion, and the connecting portion is provided with connecting teeth. The clamping sleeve comprises two clamping heads, wherein the first ends of the clamping heads are connected in pivoted mode, clamping teeth are arranged on the inner circumferential face of each clamping head, mesh teeth are arranged on the outer circumferential face of each clamping head, and the connecting teeth and the mesh teeth can be meshed with each other so that the handle can be detachably mounted on the clamping sleeve. The hinge-joint pieces are mounted at the second ends of the clamping heads and can be operated to fasten the second ends of the clamping heads. According to the wrench for the pipelines, the clamping teeth are used to increase friction between the wrench and a to-be-fastened pipeline, and therefore the to-be-fastened pipeline can be conveniently screwed up; the clamping heads are connected in pivoted mode, so that the pipeline can be conveniently released and clamped tightly; and the handle is connected with the clamping sleeve through the gear engagement method, the structure is simple, production cost is lowered, the wrench can be mounted and dismounted conveniently, the operation process is simplified, and production efficiency is improved.

Description

Spanner for pipeline

Technical field

The utility model relates to the hand-operated tools field, particularly a kind of spanner for pipeline that uses when being applicable to pipeline construction.

Background technology

The general thread connecting mode that adopts when pipeline links to each other.When connecting, because pipeline outer wall is very smooth, the phenomenon that causes easily screw thread not tighten, thus cause the problem such as leakage.Therefore, when carrying out the pipeline installation, usually need to be by spanner.

At present, domestic existing spanner for pipeline mainly contains two classes, and a kind of is strap wrenches, can be fit to multiple caliber and not damage tubing itself, but this class spanner double thread fastening force when the pipe surface smoother is difficult to control, the phenomenon that causes easily screw thread not tighten.Another kind is the metal spanner, and this kind spanner generally also comprises the complex components such as gear, ratchet and worm screw except handle and cutting ferrule, and not only complex structure, and cost is high.And when pipe laying, may need to adjust the power thrusts of spanner because of the angle problem, existing two kinds of spanner structure complexity cause complex operation and poor efficiency.

The utility model content

In order to solve above-mentioned pipeline with spanner structure is complicated, cost is high and the problem of complex operation and poor efficiency, the utility model embodiment provides a kind of spanner for pipeline.Described technical scheme is as follows:

On the one hand, provide a kind of spanner for pipeline, it comprises handle and the cutting ferrule that is connected with handle, and handle comprises connecting portion, and connecting portion is provided with connection teeth; Cutting ferrule comprises two chucks that first end mutually pivots and connects, and the inner peripheral surface of each chuck is provided with latch, and the outer peripheral face of each chuck is provided with engaging tooth, and handle is removably mounted on the cutting ferrule by the intermeshing of connection teeth and engaging tooth; Spanner for pipeline also comprises articulated elements, and articulated elements is installed in the second end of chuck, and operationally the second end of chuck is tightened up.

Further, the second end place on one of them chuck is provided with an installation base, the second end of another one chuck is provided with a grab, and articulated elements comprises that the runner that is installed in pivotally on the installation base reaches the snap ring that is installed in rotationally on the runner, and the exercisable card of snap ring hangs on the grab.

Further, runner comprises the wheel body that is installed in pivotally on the installation base and the operating handle that is extended by wheel body.

Further, the first end place of each chuck convexes with lug, and each lug is provided with through hole, and a pivot inserts the through hole of each lug successively so that two chuck first ends are pivotally connected to.

Further, the outer peripheral face of each chuck comprises two even surfaces that are positioned at meshing of intermediate annular position and are positioned at meshing both sides, and engaging tooth is located on meshing, and lug, installation base and grab all are located on the even surface.

Further, connecting portion is curved, and connection teeth is located on the intrados of connecting portion.

Further, the bar section that handle is also extended by the extrados of connecting portion, and connecting portion is symmetrical with respect to bar section.

Further, each chuck semicircular in shape.

The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: the problem that has overcome existing spanner for pipeline complex structure, cost height and complex operation and poor efficiency.Particularly, spanner for pipeline of the present utility model utilizes the latch in the cutting ferrule to increase frictional force on spanner and the pipeline to be tightened, is convenient to tighten pipeline to be tightened; Cutting ferrule only need to operate runner can realize pine oil and clamping fast, and handle is connected with cutting ferrule by the mode of gear engagement, and is simple in structure, reduced production cost; And be convenient to loading and unloading, when meeting with obstruction or need the adjustment handle to exert oneself the orientation, only need take off handle and get final product, greatly simplify procedures, improve labor productivity.

Description of drawings

In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the perspective view of the spanner for pipeline that provides of the utility model embodiment;

Fig. 2 is the schematic top plan view of Fig. 1;

Fig. 3 is the perspective view of the handle among Fig. 1;

Fig. 4 is the perspective view of one of them chuck of cutting ferrule among Fig. 1; And

Fig. 5 is the perspective view of the another one chuck of cutting ferrule among Fig. 1.

The specific embodiment

For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.

Referring to Fig. 1 and Fig. 2, the utility model embodiment provides a kind of spanner for pipeline, it comprise handle 1, with the cutting ferrule 3 of handle 1 engagement and fixing two articulated elements 5 of cutting ferrule 3.Wherein, above-mentioned handle 1, cutting ferrule 3 and articulated elements 5 are made by non-metallic material.

Please in conjunction with referring to Fig. 3, handle 1 comprises connecting portion 13 and the bar section 11 of being extended by the extrados of connecting portion 13.The cross sectional shape of this connecting portion 13 is curved, and connecting portion 13 is with respect to bar section 11 symmetries.The intrados that connecting portion 13 deviates from bar section 11 is provided with some connection teeths 131.

Please in conjunction with reference Fig. 4 and Fig. 5, cutting ferrule 3 comprises two chucks 31 that first end mutually pivots and connects.Each chuck 31 semicircular in shape.The inner peripheral surface of each chuck 31 is provided with latch 311.The outer peripheral face of each chuck 31 comprises two even surfaces 35 that are positioned at meshing 33 of intermediate annular position and are positioned at meshing 33 both sides.Be provided with the engaging tooth 331 with connection teeth 131 engagements for meshing 33.Be pivotally connected to by even surface 35 between above-mentioned two chucks 31, preferably, in the present embodiment, each even surface 35 at the first end place of each chuck 31 convexes with a lug 351, each lug 351

Be provided with a through hole (not label); Pivot 7 inserts the through hole on each lug 351 successively, thereby should be pivotally connected to by two chuck 31.In other embodiments, each chuck 31 also can only be provided with a lug 351, only needs to satisfy should individual two chucks 31 to be pivotally connected to together by this lug 351 to get final product.

The second end place of each even surface 35 of one of them chuck 31 convexes with an installation base 353, and the second end place of each even surface 35 of another one chuck 31 convexes with a grab 355.

Please again in conjunction with seeing figures.1.and.2, each articulated elements 5 comprises that the runner 51 that is installed in pivotally on the installation base 353 reaches the snap ring 53 that is installed in rotationally on the runner 51.Preferably, in the present embodiment, runner 51 comprises that wheel body 511 reaches the operating handle 513 that extends by on this wheel body 511.This wheel body 511 is installed on the installation base 353 pivotally by rotating shaft (not label).Snap ring 53 is installed on the wheel body 511 pivotally by a protruding falcon (not label), and snap ring 53 exercisable cards hang on the grab 355 of corresponding chuck 31 or break away from card with the grab 355 of corresponding chuck 31 and hang.In other embodiments, also can only be provided with an articulated elements 5 and the installation base 353 relative with this articulated elements 5, only need to satisfy chuck 31 fastening getting final product.

When using the fastening pipeline of spanner for pipeline of the present utility model, operate the runner 51 of each articulated elements 5, make runner 51 close to the grab 355 of correspondence, and the snap ring 53 of each articulated elements 5 is broken away from the card extension with the grab 355 of corresponding chuck 31; Two chucks 31 that make again cutting ferrule 3 mutually away from, and be stuck on the pipeline to be tightened.Then, operate successively again the runner 51 of chuck 31 and articulated elements 5, chuck 31 is merged mutually, and snap ring 53 card is hung on the corresponding grab 355, thereby make cutting ferrule 3 fastening and clamp pipeline to be tightened.Afterwards, in suitable orientation with central shaft vertical place of handle 1 with pipeline to be tightened, and the connection teeth 131 of handle 1 is cooperated, then along the bar section 11 of the circumference of pipeline to be tightened and painstaking direction turning handle 1, to tighten pipeline to be tightened with the engaging tooth 331 of cutting ferrule 3.When running into barrier or limited space, inconvenient when bar section 11 is had an effect, take off handle 1, again with handle 1 from suitable orientation, so repeatedly, until pipeline to be tightened is tightened.

From the above: spanner for pipeline of the present utility model utilizes the latches 311 in the cutting ferrule 3 to increase frictional force on spanner and the pipeline to be tightened, is convenient to tighten pipeline to be tightened; In addition, 3 needs operations of cutting ferrule runner 51 can be realized pine oil and clamping fast, and handle 1 is connected with cutting ferrule 3 by the mode of gear engagement, and is simple in structure, reduced production cost; And be convenient to loading and unloading, when meeting with obstruction or need adjustment handle 1 to exert oneself the orientation, only need take off handle 1 and get final product, greatly simplify procedures, improve labor productivity.

The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. spanner for pipeline, it comprises handle (1) and the cutting ferrule (3) that is connected with described handle (1), it is characterized in that described handle (1) comprises connecting portion (13), described connecting portion (13) is provided with connection teeth (131);

Described cutting ferrule (3) comprises two chucks (31) that first end mutually pivots and connects, the inner peripheral surface of each chuck (31) is provided with latch (311), the outer peripheral face of each chuck (31) is provided with engaging tooth (331), and described handle (1) is removably mounted on the described cutting ferrule (3) by the intermeshing of described connection teeth (131) and described engaging tooth (331);

Described spanner for pipeline also comprises articulated elements (5), and described articulated elements (5) is installed in the second end of described chuck (3), and operationally the second end of described chuck (3) is tightened up.

2. spanner for pipeline according to claim 1, it is characterized in that, the second end place on one of them described chuck (31) is provided with an installation base (353), the second end of the described chuck of another one (31) is provided with a grab (355), described articulated elements (5) comprises that the runner (51) that is installed in pivotally on the described installation base (353) reaches the snap ring (53) that is installed in rotationally on the described runner (51), and the exercisable card of described snap ring (53) hangs on the described grab (355).

3. spanner for pipeline according to claim 2 is characterized in that, described runner (51) comprises the wheel body (511) that is installed in pivotally on the described installation base (353) and the operating handle (513) that is extended by described wheel body (511).

4. spanner for pipeline according to claim 2, it is characterized in that, the first end place of described each chuck (31) convexes with lug (353), each lug (353) is provided with through hole, and a pivot (7) inserts the through hole of each described lug (351) successively so that described two chucks (31) first end is pivotally connected to.

5. spanner for pipeline according to claim 4, it is characterized in that, the outer peripheral face of each described chuck (31) comprises two even surfaces (35) of meshing (313) that are positioned at the intermediate annular position and the both sides that are positioned at described meshing (33), described engaging tooth (331) is located on described meshing (33), and described lug (353), described installation base (353) and described grab (355) all are located on the described even surface (35).

6. spanner for pipeline according to claim 1 is characterized in that, described connecting portion (13) is curved, and described connection teeth (131) is located on the intrados of described connecting portion (13).

7. spanner for pipeline according to claim 7 is characterized in that, the bar section (11) that described handle (1) is also extended by the extrados of described connecting portion (13), and described connecting portion (13) is with respect to described bar section (11) symmetry.

8. spanner for pipeline according to claim 1 is characterized in that, each described chuck (31) semicircular in shape.