CN210060927U

CN210060927U - Quick pipe tongs

Info

Publication number: CN210060927U
Application number: CN201920414222.6U
Authority: CN
Inventors: 苗文明; 庞年群; 刘凡伟; 曲芳; 尹伟宁; 邹积生
Original assignee: Weihai Liyu Industrial Co Ltd
Current assignee: Weihai Liyu Industrial Co Ltd
Priority date: 2019-03-28
Filing date: 2019-03-28
Publication date: 2020-02-14
Anticipated expiration: 2029-03-28

Abstract

The utility model provides a quick breakout tongs, including the pincers handle body, movable vice jaw, regular jaw, the rectangle elongated slot that link up around being used for installing movable vice jaw is offered to pincers handle body front end first, and movable vice jaw's tail end is for adjusting the rectangular body, adjusts the rectangular body and inserts in the above-mentioned rectangle elongated slot, regular jaw installs at pincers handle body front end lower half, and is corresponding with movable vice jaw front end head, movable vice jaw's the lower terminal surface of adjusting the rectangular body is opened and is established down and hinder the tooth, the little piece that hinders of up end installation of the pincers handle body, the little piece up end that hinders is offered and is hindered the tooth, the lower tooth that hinders of adjusting the rectangular body hinders and hinders the corresponding meshing of tooth that hinders on the piece, the round hole is offered to the top inner wall of rectangle elongated slot, goes up the round hole in installation spring catch, and the spring catch lower extreme top is tight adjusts the rectangular body up end. The utility model discloses have the quick adjustment opening volume function, can realize carrying out the function of relapseing the thorn and twisting fast in succession to the pipe fitting of different diameters, improved operator's work efficiency greatly.

Description

Quick pipe tongs

The technical field is as follows:

the utility model belongs to the technical field of manual hardware and tools technique and specifically relates to a quick breakout tongs.

Background art:

at present, the common adjustment mode of the opening amount of the common pipe tongs on the market is to rotate an adjusting nut, and a movable jaw is driven to move back and forth through a transmission link of a trapezoidal thread, so that the purpose of adjusting the opening amount is achieved. However, the lead of the trapezoidal thread is small, so that the proper size can be achieved by rotating the trapezoidal thread for several turns when adjusting the opening amount, for example, in large-size pipe tongs with 36 inches and 48 inches, the opening amount can be achieved by rotating the adjusting nut for several tens of turns when the opening amount is more than 100 millimeters from 0, the operation is not only troublesome, but also time and labor are wasted, and great effort is required for an operator to adjust one opening amount, which brings great limitation to actual production operation.

Application No.: 201410454629.3A pipe wrench with quick opening adjustment comprises a fixed jaw, a movable jaw, a wrench body and a wrench body handle, wherein the fixed jaw and the movable jaw are respectively provided with saw teeth, the front inner side of the wrench body handle is provided with oblique teeth, the wrench body handle is provided with scales, one side of the wrench body is provided with a through hole, the direction of the through hole is vertical to the movable jaw, the wrench body handle enters the through hole of the wrench body, the wrench body is movable on the wrench body handle, the wrench body is provided with a groove, the bottom of the groove is axially communicated with the through hole, a worm is arranged in the groove and meshed with the oblique teeth on the inner side of the wrench body handle, a stop pin, a spring and a ball are sequentially arranged in the central hole of the worm from top to bottom, the upper end of the stop pin is provided with a radial through hole, the upper part of the stop pin is arranged in a groove hole in the wrench body, the stop pin is hinged with the wrench body through a pin shaft, a groove is arranged on the contact surface, the spanner body at the left lower part of the pin shaft is provided with a rivet. The utility model discloses rational in infrastructure, easy manufacturing, with low costs, light in weight, easy operation, convenient to use, labour saving and time saving can the quick adjustment open volume of keeping silent, and work efficiency is high.

Application No.: 201310207054.0 discloses a multifunctional convenient quick-adjusting pipe wrench, which comprises a wrench body, a torsion spring, a pawl, a rack and a limit screw, and is sequentially arranged in a wrench body clamping plate. The front end of the clamp body splint is provided with a fixed clamp opening, the inclination of the clamp opening is a forward inclination angle a1 of 30-45 degrees, and an included angle a2 formed by a connecting line of a supporting fulcrum and a central point of a shaft hole of the pawl and a straight line parallel to the clamp opening is 15-30 degrees. The utility model discloses fully adopted the relation of borrowing power, ingenious design super symmetry locking with use the rack as the lever to spacing support is the fulcrum, uses the pawl to guarantee quick adjustment, the working effect of powerful locking as the lever braking locking theory of power point.

Application No.: 201110292580.2 discloses a quick clamping pipe wrench. The upper end of the clamp body is provided with a jack sleeve, a movable jaw is arranged in the jack sleeve, the upper back of the movable jaw is provided with a row of teeth, a clamping claw is arranged on the jack sleeve, the end part of the clamping claw protrudes out of the hole wall of the jack sleeve, the clamping claw is fixed on the jack sleeve through a seam-riding screw, and a spring piece is fixed on the clamp body below the movable jaw through a screw. The utility model has the advantages of fast opening degree of the jaw and being beneficial to improving the efficacy.

Application No.: 200920251470.X discloses a quick pipe wrench, which comprises a wrench handle; the movable clamp trousers are arranged on the clamp handle, and the fixed clamp head and the clamp handle are T-shaped; the fixed forceps heads positioned on the two sides of the forceps handle are respectively a fixed flat jaw and a fixed sawtooth jaw; a rack is arranged on the side surface of the clamp handle; the movable pliers trousers are sleeved on the pliers handles, and the hand wheels arranged on the movable pliers trousers are meshed with the racks; the movable flat jaw and the movable sawtooth jaw correspond to the fixed flat jaw and the fixed sawtooth jaw in position; the movable pliers trousers are provided with a hand wheel quick retraction device and a clamping device of which the movable sawtooth jaw forms a wedge angle. The utility model has the advantages of convenient carrying and simple operation by integrating the wrench and the pipe wrench tool. Can realize rapid retraction and release and has high use efficiency. The clamping device with the movable sawtooth jaw forming the wedge angle clamps the round pipe piece to realize self-locking, and the clamping effect is superior to that of the pipe tongs in the prior art.

Technical scheme and the technical problem that will solve and the beneficial effect who produces of above disclosure technique all with the utility model discloses inequality, to the utility model discloses more technical characteristics and the technical problem and the beneficial effect that will solve all do not have the technological inspiration in the above technical document that discloses.

The utility model has the following contents:

the utility model aims at providing a quick breakout tongs, reasonable in design, simple structure, easy manufacturing, convenient to use, have the quick adjustment opening volume function, can realize going on relapseing the function of twisting of thorn fast in succession to the pipe fitting of different diameters, improved operator's work efficiency greatly.

The purpose of the utility model can be realized by the following technical measures:

the quick pipe wrench comprises a wrench handle body, a movable jaw and a fixed jaw, wherein a rectangular long groove which is used for installing the movable jaw and is communicated with the front and the back is formed in the upper half part of the front end of the wrench handle body, an adjusting strip body is arranged at the tail end of the movable jaw and inserted into the rectangular long groove, the fixed jaw is installed on the lower half part of the front end of the wrench handle body and corresponds to the front end head of the movable jaw, lower blocking teeth are arranged on the lower end face of the adjusting strip body of the movable jaw, a small blocking block is installed on the upper end face of the wrench handle body, upper blocking teeth are arranged on the upper end face of the small blocking block, the lower blocking teeth of the adjusting strip body are correspondingly meshed with the upper blocking teeth of the small blocking block, an upper round hole is formed in the top inner wall of the rectangular long groove, a spring pin is installed in the upper round hole.

the spring pin comprises a top pin and a spring, the spring is arranged in the upper round hole, the top pin extends into the spring, the lower end of the top pin is provided with an end cap, the upper end face of the end cap of the top pin clamps the lower end face of the spring, the upper end face of the strip body is tightly adjusted by the lower end face of the end cap of the top pin, the upper round hole is a blind hole, and the depth of the upper round hole is larger than or equal to the length of the top pin.

The rear end of the small block is provided with a mounting hole, a lower screw hole is formed in the position, corresponding to the mounting hole, of the plier handle body, a screw penetrates through the small block mounting hole and then is fixed in the lower screw hole, and the small block is mounted and fixed on the plier handle body.

The adjustable strip body is provided with an adjustable strip hole, the side wall of the rectangular long groove at the front end of the plier handle body is provided with a pin shaft hole, and a pin shaft sequentially penetrates through the pin shaft hole and the adjustable strip hole to connect the movable jaw and the plier handle body together.

The fixed jaw is mounted on the jaw handle body through a cotter pin.

The fixed jaw and the movable jaw are provided with corresponding clamping surfaces, and an included angle formed by the clamping surfaces of the fixed jaw and the movable jaw is 8 degrees.

An arc-shaped part protruding upwards is designed at the holding part at the tail part of the forceps handle body and is attached to the hand nest; the two side surfaces of the long handle section at the rear part of the clamp handle body are designed by grooves.

Compared with the prior art, the utility model following beneficial effect has:

the lower end of the handle part of the movable jaw is provided with small teeth with the tooth pitch of 1 mm, the upper end surface of the small stop block is provided with small teeth with the tooth pitch of 1 mm in opposite directions, and the movable jaw is convenient for the small stop block to be toothed together under the action of the pressure of the ejector pin. When the opening amount needs to be adjusted, the movable jaw can be disengaged from the small stop block by only slightly lifting the tail part of the movable jaw by applying force, and the opening amount of the pipe wrench can be rapidly increased and reduced by dragging the movable jaw; meanwhile, the pin shaft penetrates through the handle part elliptical groove of the movable jaw to control the maximum and minimum opening amount of the pipe wrench, and the movable jaw is prevented from falling out of the rectangular elongated groove of the wrench handle body.

The tooth part included angle of the movable jaw and the fixed jaw is 8 degrees, and when the size of the clamping pipe diameter is not an integer, the defect that the clamping pipe cannot be occluded can be overcome by using the included angle of 8 degrees.

The utility model relates to a rationally, simple structure, easy manufacturing uses, convenient operation, and labour saving and time saving can realize the quick adjustment opening volume, carries out the function of thorn twisting fast in succession to the pipe fitting of different diameters, has improved operator's work efficiency greatly.

Description of the drawings:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic three-dimensional assembly of an embodiment of the present invention;

fig. 3 is a schematic three-dimensional explosion diagram of an embodiment of the present invention;

fig. 4 is a schematic view of the force application direction according to the embodiment of the present invention.

The labels in the figure are: 1. the clamp comprises a movable jaw, a pin shaft 2, a spring 3, a knock pin 4, a small stop block 5, a screw 6, a fixed jaw 7, a split pin 8 and a clamp handle 9.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution:

the quick pipe wrench comprises a wrench handle body 9, a movable jaw 1 and a fixed jaw 7, wherein a rectangular long groove which is used for installing the movable jaw and is communicated with the front and the back of the movable jaw is formed in the upper half part of the front end of the wrench handle body, an adjusting long strip body is arranged at the tail end of the movable jaw and is inserted into the rectangular long groove, the fixed jaw is installed on the lower half part of the front end of the wrench handle body and corresponds to the front end head part of the movable jaw, lower blocking teeth are formed in the lower end face of the adjusting long strip body of the movable jaw, a small blocking block 5 is installed on the upper end face of the wrench handle body, upper blocking teeth are formed in the upper end face of the small blocking block, the lower blocking teeth of the adjusting long strip body are correspondingly meshed with the upper blocking teeth of the small blocking block, an upper round hole is formed in the top inner wall of the rectangular long groove, a.

The spring pin comprises a top pin 4 and a spring 3, the spring is arranged in the round hole, the top pin extends into the spring, the lower end of the top pin is provided with an end cap, the upper end face of the end cap of the top pin clamps the lower end face of the spring, the upper end face of the strip body is tightly adjusted by the lower end face of the end cap of the top pin, the upper round hole is a blind hole, and the depth of the upper round hole is larger than or equal to the length of the top pin.

The rear end of the small block is provided with a mounting hole, the position of the plier handle body corresponding to the mounting hole is provided with a lower screw hole, a screw 6 penetrates through the mounting hole of the small block and then is fixed in the lower screw hole, and the small block 5 is fixedly arranged on the plier handle body 9.

The adjusting strip body is provided with an adjusting strip hole, the side wall of the rectangular long groove at the front end of the plier handle body is provided with a pin shaft hole, and a pin shaft 2 sequentially penetrates through the pin shaft hole and the adjusting strip hole to connect the movable jaw 1 and the plier handle body 9 together.

The fixed jaw 7 is mounted on the body of the jaw by means of a cotter pin 8.

The upper or upper end of the pipe wrench shown in fig. 1 will be referred to in the following description as the front or forward portion of the pipe wrench, and the lower or lower end of the pipe wrench shown in fig. 1 will be referred to in the following description as the rear or rearward portion of the pipe wrench, then naturally the right side of the component in fig. 1 will be referred to as the upper end face and the left side as the lower end face; the description is as follows: the front end of the forceps handle body 9 is provided with a rectangular elongated slot, the movable forceps jaw 1 penetrates through the elongated slot to be connected with the elongated slot, the inner side of the top end of the head of the forceps handle body 9 is provided with a round hole, a knock pin 4 is arranged in the round hole, the knock pin 4 is provided with a spring 3, and the knock pin 4 is pressed on the upper end face of the movable forceps jaw 1 under the elastic force action of the spring 3. The rear side of the head of the plier handle body 9 is provided with a small block slot and a threaded hole, and the small block 5 is fixed on the plier handle body 9 through a screw 6. The lower end of the head of the forceps handle body 9 is provided with a round hole and a long groove, and the cotter pin 8 penetrates through the round hole and fixes the fixed forceps opening 7 in the long groove. The lower end of the handle part of the movable jaw 1 is provided with small teeth with the tooth pitch of 1 mm, the upper end surface of the small block 5 is provided with small teeth with the tooth pitch of 1 mm in opposite directions, and the movable jaw 1 is convenient for the small block 5 to be toothed together under the pressure action of the ejector pin 4. An oval groove is arranged at the center of the handle part of the movable jaw 1, and the pin shaft 2 passes through the groove and is fixed at the head part of the jaw body 9 through threaded connection. The included angle of the tooth parts of the movable jaw 1 and the fixed jaw 7 is 8 degrees.

As shown in fig. 2 and 3: under the pressure action of the knock pin 4, the lower end face of the handle of the movable jaw 1 is meshed with the upper end face of the small stop block 5. When the opening amount needs to be adjusted, only a little force needs to be applied to lift the tail part of the movable jaw 1, the movable jaw 1 can be quickly separated from the meshing state with the small stop block 5, and at the moment, the movable jaw 1 is dragged to realize the quick increase and reduction of the opening amount of the pipe wrench; meanwhile, the pin shaft 2 penetrates through the oval groove on the handle part of the movable jaw 1 to control the maximum and minimum opening of the pipe wrench, and the movable jaw 1 is prevented from falling out of the rectangular long groove of the wrench handle body 9.

In addition, the lower end face of the handle part of the movable jaw 1 and the upper end face of the small stopping block 5 are both provided with a row of small teeth with the tooth pitch of 1 millimeter, theoretically, only a pipe fitting with the pipe diameter being integral multiple can be clamped, but the included angle between the movable jaw 1 and the tooth part of the fixed jaw 7 of the pipe tongs is set to be 8 degrees, when the size of the pipe diameter is not integral size, the defect of untight occlusion can be overcome by using the included angle of 8 degrees, and therefore the pipe fittings with all sizes in the opening amount range can be clamped.

As shown in fig. 4: when an operator holds the handle part of the plier handle body 9 to apply force along the direction 1, the teeth at the head part of the movable plier mouth 1 and the teeth on the fixed plier mouth 7 respectively bite the surface of the pipe fitting and simultaneously drive the pipe fitting to rotate clockwise; because the tooth portion contained angle of activity keeping silent 1 and fixed keeping silent 7 is 8 degrees bevels, after clockwise rotating certain angle, gently lift the breakout tongs, the space between activity keeping silent 1 and the fixed keeping silent 7 at this moment is greater than the size of pipe diameter, holds the anticlockwise rotation of pincers handle body 9 stalk portion fast this moment and returns, then bites the pipe fitting surface respectively with the tooth of activity keeping silent 1 head and the tooth above the fixed keeping silent 7 once more, and the application of force once more along direction 1 just can drive the pipe fitting clockwise rotation once more. Therefore, the function of continuously and rapidly repeatedly twisting the pipe fitting can be realized.

Additionally, the utility model discloses a 9 afterbody of pincers handle body grip the department and adopted the human engineering principle, design into the bellied arc style that makes progress, the laminating hand nest can guarantee the comfort level that the operator gripped for a long time like this, the effectual tired sense that has reduced the operator. Secondly, the design of the multi-section large-space groove is adopted in the handle part of the clamp handle body 9, so that the overall weight of the product can be effectively reduced on the premise of meeting the strength requirement of the product, the fatigue of an operator frequently used for a long time is greatly reduced, and the working efficiency is improved.

To sum up, the utility model relates to a rationally, simple structure makes easily, uses, convenient operation, and labour saving and time saving can realize the quick adjustment opening volume, can carry out the function of thorn twisting fast in succession to the pipe fitting of different diameters, has improved operator's work efficiency greatly.

In the description of the present invention, it should be understood that the orientation indication or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description of the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A quick pipe wrench comprises a wrench handle body, a movable wrench jaw and a fixed wrench jaw, wherein a rectangular long groove which is used for installing the movable wrench jaw and is communicated with the front and the back is formed in the upper half part of the front end of the wrench handle body, an adjusting long strip body is arranged at the tail end of the movable wrench jaw and is inserted into the rectangular long groove, the fixed wrench jaw is installed on the lower half part of the front end of the wrench handle body and corresponds to the front end head part of the movable wrench jaw, the quick pipe wrench is characterized in that lower blocking teeth are formed in the lower end face of the adjusting long strip body of the movable wrench jaw, a small blocking block is installed on the upper end face of the wrench handle body, upper blocking teeth are formed in the upper end face of the small blocking block, the lower blocking teeth of the adjusting long strip body are correspondingly meshed with the upper blocking teeth of the small blocking block, an upper round hole is formed in the top inner wall of the rectangular.

2. The quick pipe wrench as claimed in claim 1, wherein the spring pin comprises a top pin and a spring, the spring is installed in an upper circular hole, the top pin extends into the spring, the lower end of the top pin is provided with an end cap, the upper end surface of the end cap of the top pin is clamped on the lower end surface of the spring, the lower end surface of the end cap of the top pin is tightly pressed against the upper end surface of the adjusting strip body, the upper circular hole is a blind hole, and the depth of the upper circular hole is greater than or equal to the length of the top pin.

3. The quick pipe wrench as claimed in claim 1 or 2, wherein the small block has a mounting hole at its rear end, the wrench shank at a position corresponding to the mounting hole has a lower screw hole, and the small block is fixed to the wrench shank by passing a screw through the small block mounting hole and then fixing the small block in the lower screw hole.

4. The quick pipe wrench as claimed in claim 1 or 2, wherein the adjustable strip body is provided with an adjustable strip hole, the side wall of the rectangular elongated slot at the front end of the wrench handle body is provided with a pin shaft hole, and the pin shaft passes through the pin shaft hole and the adjustable strip hole in sequence to connect the movable jaw and the wrench handle body together.

5. A quick pipe wrench as claimed in claim 1 or claim 2, wherein the fixed jaw is mounted to the wrench shank by a cotter pin.

6. A pair of quick pipe tongs according to claim 1 or 2, wherein the fixed jaw and the movable jaw have corresponding gripping surfaces, and the gripping surface of the fixed jaw and the gripping surface of the movable jaw form an angle of 8 degrees.

7. The quick pipe wrench as claimed in claim 1 or 2, wherein the tail gripping part of the wrench handle is designed with an arc part protruding upwards to fit the hand socket; the two side surfaces of the long handle section at the rear part of the clamp handle body are designed by grooves.