CN2192437Y

CN2192437Y - Fast-speed pipe wrench

Info

Publication number: CN2192437Y
Application number: CN 94225040
Authority: CN
Inventors: 徐晓波
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-01-08
Filing date: 1994-01-08
Publication date: 1995-03-22
Anticipated expiration: 2004-01-08

Abstract

The utility model relates to a quick pipe wrench, which is the improvement of the driving and reversing mechanism of the upper jaw clamp of a control pipe wrench. The utility model has a control mode of the mutual engagement of ratchets or the mutual bunt of the ratchet. A block frame is propped by a plate-shaped spring, and the upper jaw clamp is pushed downwards, so the ratchets arranged between a pipe wrench main body and the upper jaw clamp can be mutually and tightly engaged. The utility model has the advantages of quick adjustment of the size of the vice jaw, convenient force application to the handle of the main body, no slide in use, and no danger in use.

Description

Fast-speed pipe wrench

The utility model is meant a kind of pipe wrench, refers in particular to a kind of quick pipe wrench, can open fast or closure, and the size that need not regulate opening with screw rod, so, therefore the formality of simplified operation instrument and the process of processing can effectively reduce danger.

Along with the increase of population and the progress of Building technology, high buildings and large mansions are also more built higher, in the construction to every engineering, the use of pipeline is very general, as: water pipe, ventilation duct, gas pipe ... Deng, in the time of need climbing or slip into underground work, the chance that uses pipe wrench is quite a lot of, but pipe wrench has its shortcoming in the use, promptly be to want to regulate with screw rod earlier, jaw is moved to when its opening can just be bitten the outer wall of pipe could work, very slow, if under bad working environment, work for a long time, also can increase danger.And when removing rotating screw bolt with finger, what lean on is between the two frictional force, though the phase at the beginning of making pipe wrench, just at the embossed surface of screw rod to increase frictional force, still, if finger is because of perspiring or being stained with greasy dirt, then frictional force can reduce significantly, at this moment, even push away screw rod very at full tilt, screw rod can not rotate yet, then go up jaw and more can not move, increase the difficulty on using.Moreover pipe wrench heaviness very, the load of arm also will remove rotating screw bolt with finger except will supporting its weight, more cause the inconvenience in the use.Can know that by above narration its main shortcoming of known pipe wrench is that the process of its adjusting must could realize through the rotation of screw rod.

The utility model is the shortcoming that overcomes the conventional tube wrench, designs a kind of can opening fast or closed pipe wrench, and it must not regulate the size of opening with screw rod, and is easy and simple to handle, quick and safety.

Pipe wrench provided by the utility model is improved the driving and reversing mechanism of jaw on the control valve wrench, and the control mode that resists mutually between engaged or the card tip and ratchet with ratchet.Withstand with plate-shaped springs and to stop that framework pushes to jaw downwards, and make ratchet closely interlock mutually between pipe wrench body and the last jaw.Another example be nationality by stopping that the compression spring in the frame pushes away the card tip of control lever downwards, force the ratchet of the card tip and last jaw to resist mutually and can't move, and the size of permanent opening.Another example is to promote to place with button to stop in the framework, come the control lever of start with lever principle, because of the compression spring pushes away the card tip of control lever downwards, forces the ratchet of the card tip and last jaw to resist mutually and can't move.But aforementioned tube wrench rapid adjustment openings of sizes forces in the handgrip of body easily, does not slide during use not have danger.

The quick pipe wrench of the utility model specifically is characterized in that: its top of the body of pipe wrench is combined with jaw and comes holding workpiece, with the restriction framework prevent body and on the jaw separation, and a spring is set makes it the two can engage closely; Penetrate restriction framework and body in conjunction with all elements with bolt or rivet.A kind of structure of this pipe wrench is, the most preceding end face of body is provided with contrate, and the ratchet that the upper end is provided with ratchet and last jaw top matches, terminal handgrip part, and its cross section is " worker " font; The place ahead of last jaw is crooked and be provided with contrate, and the upper end is provided with projection, and end is provided with stop arm; Stop that framework curves " Jiong " font, has bolt or rivet hole in both sides; Metallic plate is bent into the middle plate that makes progress for circular arc, two ends to be placed in spring between restriction framework and the last jaw; Penetrate framing mask and body in conjunction with all elements with two bolts or rivet again.Another kind of structure is that the most preceding end face of body is provided with contrate, terminal handgrip part, and its cross section is " worker " font; The place ahead of last jaw is crooked and be provided with contrate, and the top is provided with ratchet; The central authorities of one control lever extend upward and are crooked, and the surface extrudes several circular arcs and forms pressing plate thereon, and the circular arc body of middle lower edge can be worked as a point control rear and be become the pointed card tip to engage with the ratchet of last jaw, and card tip top is opened a slotted eye and is used for placing spring; Stop that framework makes " Jiong " font, there is a square opening top, and lower edge is provided with a bolt or rivet hole; Penetrate framing mask and body in conjunction with all elements with a bolt or rivet again.In addition, also can adopt following structure, the most preceding end face of body is provided with contrate, terminal handgrip part, and its cross section is " worker " font; The place ahead of last jaw is crooked and be provided with contrate, and the top is provided with ratchet; Stop that framework makes " Jiong " font, there is a hole top, make interference engagement with an end and this hole that an axle sleeve is less, with an end be provided with flange, the mandrel rod that is pressed with the linear striped on its periphery by stop framework below pass, the push rod of making button-like with a hollow and an end is put between axle sleeve and the axostylus axostyle again; The central authorities of control lever have a slotted hole, make circular arc in the both sides of slotted hole to gather way, and a slotted eye is opened in terminal top, uses folder to settle spring, and a pointed card tip is made in the terminal below of control lever, stop framework and control lever with a bolt or rivet combination; Stop framework and body with a bolt or rivet combination in addition.

In order further to understand feature of the present utility model and technology contents, see also following about detailed description of the present utility model and accompanying drawing, yet appended graphic only for reference with usefulness is described, and be not to be used for the utility model is done any limitr.Relevant accompanying drawing is:

Fig. 1 is the exploded view of first embodiment of the present utility model;

Fig. 2 is the constitutional diagram of first embodiment of the present utility model;

Fig. 3 A, Fig. 3 B and Fig. 3 C are the usage operation figure of first embodiment of the present utility model;

Fig. 4 is the exploded view of second embodiment of the present utility model;

Fig. 5 is the profile of second embodiment of the present utility model;

Fig. 6 is the operation instruction figure of second embodiment of the present utility model;

Fig. 7 limits the exploded view of framework and control lever for the 3rd embodiment of the present utility model; And

Fig. 8 A and Fig. 8 B are the operation instruction figure of the 3rd embodiment of the present utility model.

Wherein the label declaration to accompanying drawing is described in following narration in the lump.

See also Fig. 1 and Fig. 2 exploded view and constitutional diagram for first embodiment of the utility model 10, the place ahead of body 20 is provided with contrate 22, when the place ahead of body contacts with gripped object, if contact area is littler, then pressure is also just big, so also just firm, so the plane is made as contrate 22, in like manner, contrate 32 is also made in the below of last jaw 30, in order to clamping; In order to prevent that body 20 and last jaw 30 from can not produce slip when the application of force, enough intensity opposing sliding forces can be arranged and can adjust openings of sizes easily, so cooperatively interact with ratchet 21 and 31 at both contacted positions, ratchet such as the same contrate of tiltedly putting, the direction that this contrate tilts is opposite with the direction of slip; The cross section of body 20 is designed to " worker " font, can guarantee that intensity can not reduce, but weight reduction again; Be drilled with two holes as bolt or rivet hole 23 at body 20, treat that whole group part has made up after, pass and fix with bolt or rivet.

In order to allow the finger application of force easily, be provided with the circular-arc projection of multiple tracks 34 in corner, last jaw 30 the place ahead, be provided with countercheck rod 33 at its rear, prevent that jaw 30 is excessive preceding and then drop; And after being positioned at position that jaw 30 and body 20 contact with each other and being provided with ratchet 31 and ratchet 21 and matching, can adjust openings of sizes easily, also needn't worry to produce the danger that slip increases in use; It is circular-arc 35 that tail end below stop arm 33 is made, and can allow jaw 30 withstand the edge of restriction framework 40 with this position, and the ratchet 31 of jaw 30 and the ratchet 21 of body 20 are separated, as long as jaw 30 in the promotion, just can adjust the size of opening very easily.The front end of plate-shaped springs sheet 50 is bent upwards a flange 51 and makes it can withstand leading edge 42 clampings that stop framework 40 to decide plate-shaped springs sheet 50; With the inner edge that stops framework 40 is supporting surface 43, extends a plane 52 at flange 51 and can make it can be closely against this supporting surface 43; With the end on plane 52 is fixed edge and a crooked circular arc 53, and this circular arc 53 provides the elastic force of plate-shaped springs sheet 50 height; The end of this circular arc 53 extends an inclined plane 54 again, provides plate-shaped springs sheet 50 suitable deformation space; Upwards bending a flange 55 again by inclined plane 54, is stressed place with the boundary line 56 on flange 55 and inclined plane 54.

When plate-shaped springs sheet 50 to be put into as " Jiong " type stop between framework 40 and the last jaw 30 time, to shrink plate-shaped springs 50 pressurizations closure and just can insert between the two earlier, because of plate-shaped springs sheet 50 has outside restoring force, no matter force jaw 30 and body 20 whether in use all can combine closely.

Seeing also Fig. 3 A, Fig. 3 B, Fig. 3 C is arranged is the usage operation figure of first embodiment of the present utility model.Fig. 3 A will adjust openings of sizes before being depicted as and using, as long as holding two sides of jaw 30 nose circle arcuation projections 34 is pulled upwardly gently, at this moment, the circular arc 35 of last jaw 30 tail ends can withstand body 20 and jaw 30 is separated with body 20, because of the restriction of countercheck rod 33 is arranged, last jaw 30 just can not separate because of excessive pulling out with body 20, Fig. 3 B is depicted as and shifts last jaw 30 onto its contrate 32 backward and contact with workpiece and to decontrol, promptly finish the adjustment of openings of sizes, after Fig. 3 C is depicted as and has adjusted, the work that the handle of promptly rotatable body 20 is dismantled or installed pipe.

See also Fig. 4 and Fig. 5 and be respectively the exploded view of second embodiment of the present utility model and the profile after the combination, the structure of present embodiment and first embodiment are roughly the same, the part of its change is stated respectively chatted as the back:

Ratchet 21 parts of body 20 change to the plane; Because of the framework 40 that stops of new shape can be rotated slightly, so, bolt of design or rivet hole 23 on the body 20, the top of jaw 30 is removed and ratchet 31 is changed to circular-arc protruding 34 of last jaw 30.

The top of control lever 50 is provided with a pressing plate portion 51 and from stopping that the square opening 43 on the framework 40 stretches out, because of control lever 50 can slide by the axis direction along body 20 slightly in use, so it is big that square opening 43 must be opened, mobile nargin as control lever 50, so, can make finger make things convenient for the application of force and can not slide; The stop arm 52 in its place ahead places the inside that stops framework 40, prevents that control lever 50 from dropping from stopping the square opening 43 on the framework 40; In the time will adjusting openings of sizes, depress pressing plate 51 after, circular arc body 54 meetings of below and the ratchet 31 of last jaw 30 contact, and because of circular arc body 54 is smoothed curves, can't produces with the ratchet 31 of last jaw 30 to interfere and hinder and go up moving of jaw 30; For the running that will provide suitable elastic force to make control lever 50 more certain, drill with ferrule one slotted eye 55 reenters and puts a spring 60 thereon on the card tip 53, when opening is transferred to the suitable pressing plate 51 of decontroling when big or small, the card tip 53 tips of ordering about as triangular shape because of the elastic force effect meeting of spring 60 fall between the ratchet 31 of jaw 30 automatically, limit moving of jaw 30 and finish the work of adjusting opening; Stop on the framework 40 and pressed because lean against always by finger at the process center platen of adjusting 51, therefore, stop that framework 40 must do slightly rotation and just can not hinder the action of pressing plate 51, so only establish a bolt or rivet hole 44 and can use low-angle swing as the center.

See also the operation instruction figure of Fig. 6 for second embodiment of the present utility model, when thumb is pinned pressing plate 51 and the card tip 53 is separated with ratchet 31, the tail end of control lever 50 will holddown spring 60 and is out of shape, can adjust the size of opening according to the size of workpiece, can decontrol pressing plate 51 after having adjusted the longitudinal separation of jaw 30, because of will the restore to the original state ratchet 31 of the card tip 73 of push lever 50 ends and last jaw 30 of spring 60 cooperates, so, last jaw 30 just can not produce slip.

See also Fig. 7 and be the restriction framework of the 3rd embodiment of the present utility model and the exploded view of control lever, the structure of present embodiment and second embodiment are roughly the same, only its restriction framework and control lever are done the modification of part, make it in application safety and convenience be arranged more.

PBU pushbutton unit 80 on the restriction framework 40, the pressing plate 51 of second embodiment of its function and Fig. 4 is identical, the end that axle sleeve 82 external diameters are less utilizes the mode of interference engagement and the conjugate foramen 46 on the restriction framework 40 to make permanent engagement, again the inside of mandrel rod 84 from restriction framework 40 is passed, because of being provided with protruding level 841, an end of mandrel rod 84 can prevent that mandrel rod 84 from dropping out outside the restriction framework 40, on the peripheral surface of mandrel rod 84, be pressed with the lines 842 of line strip, when hollow and an end are made 84 of the push rod 81 of button-like and mandrel rod and matched, can provide enough frictional force with 81 landings of resistance push rod.

The difference of second embodiment of control lever 50 and Fig. 4, be to be design concept with first lever principle, penetrating control lever 50 with bolt or rivet 70 is fulcrum, the center of control lever 50 has a slotted hole 57, its objective is that the nargin that provides suitable does axially movable space to control lever 50, the phenomenon that can significantly reduce the intensity of control lever 50 and have stress to concentrate because of the excessive variation of surface curve because of slotted hole 57 produces, thus in the periphery of slotted hole 57 with circular arc 58 as the reinforcement and the concentrated phenomenon that eliminates stress; Spring 60 distortion that promptly presses earlier before assembling, when spring 60 will resile and expand downwards, can force the card tip 53 ratchets 31 most advanced and sophisticated and last jaw 30 of control lever 50 to engage closely, and with bolt or rivet 70 is that fulcrum upwards pushes up the leading edge 52 of control lever 50 and mandrel rod 84, and the flange 481 of mandrel rod 84 can be pushed down the conjugate foramen 46 of restriction framework 40 always.

Seeing also Fig. 8 A and Fig. 8 B is the operation instruction figure of the 3rd embodiment of the present utility model, when finger press push button device 80, the card tip 53 of control lever 50 and the ratchet 31 of last jaw 30 are separated, just can adjust the size of opening, as long as loosen PBU pushbutton unit 80, the card tip 53 of control lever 50 and the ratchet 31 of last jaw 30 engage closely because of the effect of spring 60, and last jaw 30 just can not slide.

Comprehensive the above, the pipe wrench that the utility model can be commonly used has more security, can not damage because pipe wrench skids, this is very important really for the staff of work high above the ground, and dismounting or assembling are as long as once just finish, screw thread to work can't cause too big wearing and tearing, is used for the demanding pipeline of leakproof (as: gas, sliding, the chemical agent of combustion ... Deng) connection, a kind of instrument of the best especially.

Claims

1, a kind of pipe wrench is characterized in that: its top of the body of pipe wrench is combined with jaw and comes holding workpiece, prevents body and goes up the jaw separation with the restriction framework; And a spring is set makes it the two can engage closely; Penetrate restriction framework and body in conjunction with all elements with bolt or rivet.

2, pipe wrench as claimed in claim 1 is characterized in that: the most preceding end face of body is provided with contrate, and the ratchet that the upper end is provided with ratchet and last jaw top matches, terminal handgrip part, and its cross section is " worker " font; The place ahead of last jaw is crooked and be provided with contrate, and the upper end is provided with projection, and end is provided with stop arm; Stop that framework curves " Jiong " font, has bolt or rivet hole in both sides; Metallic plate is bent into the middle plate that makes progress for circular arc, two ends to be placed in spring between restriction framework and the last jaw; Penetrate framing mask and body in conjunction with all elements with two bolts or rivet again.

3, pipe wrench as claimed in claim 1 is characterized in that: the most preceding end face of body is provided with contrate, terminal handgrip part, and its cross section is " worker " font; The place ahead of last jaw is crooked and be provided with contrate, and the top is provided with ratchet; The central authorities of one control lever extend upward and are crooked, and the surface extrudes several circular arcs and forms pressing plate thereon, and the circular arc body of middle lower edge can be worked as a point control rear and be become the pointed card tip to engage with the ratchet of last jaw, and card tip top is opened a slotted eye and is used for placing spring; Stop that framework makes " Jiong " font, there is a square opening top, and lower edge is provided with a bolt or rivet hole; Penetrate framing mask and body in conjunction with all elements with a bolt or rivet again.

4, pipe wrench as claimed in claim 1 is characterized in that: the most preceding end face of body is provided with contrate, terminal handgrip part, and its cross section is " worker " font; The place ahead of last jaw is crooked and be provided with contrate, and the top is provided with ratchet; Stop that framework makes " Jiong " font, there is a hole top, make interference engagement with an end and this hole that an axle sleeve is less, with an end be provided with flange, the mandrel rod that is pressed with the linear striped on its periphery by stop framework below pass, the push rod of making button-like with a hollow and an end is put between axle sleeve and the axostylus axostyle again; The central authorities of control lever have a slotted hole, make circular arc in the both sides of slotted hole to gather way, and a slotted eye is opened in terminal top, uses folder to settle spring, and a pointed card tip is made in the terminal below of control lever, stop framework and control lever with a bolt or rivet combination; Stop framework and body with a bolt or rivet combination in addition.