CN112975847A - Multifunctional pipe tongs - Google Patents
Multifunctional pipe tongs Download PDFInfo
- Publication number
- CN112975847A CN112975847A CN202110202318.8A CN202110202318A CN112975847A CN 112975847 A CN112975847 A CN 112975847A CN 202110202318 A CN202110202318 A CN 202110202318A CN 112975847 A CN112975847 A CN 112975847A
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- China
- Prior art keywords
- pipe
- groove
- fixedly connected
- box
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
Abstract
A multi-functional pipe wrench, comprising: the pipe clamp comprises a pipe clamp box, a pipe clamp part and a turning part; the pipe wrench box is a shell of the tool, and a handle is arranged on the pipe wrench box for convenient use; the pipe tongs part is arranged in a groove below the pipe tongs box, and the pipe tongs part realizes the functions of clamping, screwing or unscrewing a nut at a pipe joint; the direction changing part is arranged in the pipe clamp box, and realizes the functions of homodromous rotation, opposite rotation and independent rotation of the chucks in the two pipe clamp parts; when the multifunctional pipe wrench is used, the button on the supporting block is pressed, the supporting block pushes one end of the lever downwards, the other end of the lever pushes the fixture block A upwards, the fixture block A is separated from the baffle, the baffle pushes the pipe joint outwards through the spring to block the pipe joint, and the pipe joint is prevented from being displaced to separate from the chuck when being unscrewed or screwed.
Description
Technical Field
The invention relates to the technical field of hardware tools, in particular to a multifunctional pipe wrench.
Background
The existing straight-mouth pipe tongs are generally characterized in that a handle is positioned in the middle of a tong head, but when the peripheral space of a pipeline is small, the pipe tongs need to be twisted for multiple times and then replaced, so that the purpose can be achieved, a lot of manpower and time are wasted, particularly when small-caliber pipelines such as water pipes are maintained, the pipelines are already laid in narrow pipeline grooves, the moving range of the pipe tongs is small, and therefore a multifunctional pipe tongs is needed.
Disclosure of Invention
The invention provides a multifunctional pipe wrench aiming at the technical problems, which changes the back torsion into rotation and provides great convenience for small space.
The technical scheme adopted by the invention is as follows: a multi-functional pipe wrench, comprising: the pipe clamp comprises a pipe clamp box, a pipe clamp part and a turning part; the pipe wrench box is a shell of the tool, and a handle is arranged on the pipe wrench box for convenient use; the pipe tongs part is arranged in a groove below the pipe tongs box, and the pipe tongs part realizes the functions of clamping, screwing or unscrewing a nut at a pipe joint; the direction changing part is arranged in the pipe clamp box, and the direction changing part realizes the functions of homodromous rotation, opposite rotation and independent rotation of the chucks in the two pipe clamp parts.
Preferably, the tube gripping portion comprises: the device comprises a thrust bearing, a T-shaped frame, a telescopic pipe, a clamping device and a clamping device; the two thrust bearings are respectively and fixedly arranged in the two grooves in the pipe wrench box, tension springs are arranged at two ends of each thrust bearing, one ends of the tension springs are fixedly connected with the thrust bearings, and the other ends of the tension springs are connected with the inner parts of the round pipes on the hollow plates; the T-shaped frame is slidably arranged in a groove in the pipe wrench box, a top spring is arranged at the bottom of the T-shaped frame, one end of the top spring is fixedly connected with the bottom of the T-shaped frame, and the other end of the top spring is fixedly connected with the bottom surface of the groove in the pipe wrench box; the telescopic pipe is slidably arranged in a square hole in the pipe wrench box, and one end of the telescopic pipe is fixedly connected with one of the two-way racks; the two clamping devices are respectively arranged on the two thrust bearings in a sliding manner; the clamping devices are eight, and two sides in the metal support are respectively provided with one clamping device.
Preferably, the clamping means of the tube gripping portion comprises: the device comprises a hollow plate, a bidirectional rack, an L-shaped strip, a half-tooth supporting rod, a metal bracket, a gear A, a belt pulley A, a supporting wheel, a belt pulley group and a synchronous belt A; the hollow plate is provided with two hollow plates, a round pipe at one side of the hollow plate is slidably arranged on a shaft on the thrust bearing, a telescopic pipe is arranged at the other side of the hollow plate, one end of the telescopic pipe is rotatably arranged in a groove in the pipe wrench box, and the other end of the telescopic pipe is fixedly connected with the thrust bearing; the bidirectional rack is fixedly arranged at one end of the extension tube; one end of the L-shaped strip is fixedly arranged at the bottom end of the bidirectional rack, the other end of the L-shaped strip is slidably arranged in the T-shaped frame, one end of the L-shaped strip is provided with a tension spring, one end of the tension spring is fixedly connected with the L-shaped strip, and the other end of the tension spring is fixedly connected with the inner plane of the T-shaped frame; two half-tooth support rods are provided, two shafts close to the sawteeth are rotatably arranged in circular grooves in the two hollow plates, shafts close to the lower ends of the two half-tooth support rods are rotatably arranged in circular holes in the two metal supports, and the sawteeth on the half-tooth support rods are meshed with the bidirectional racks; the number of the metal rods is two, and a shaft at one end of each metal rod rotates and is slidably arranged in grooves in the two hollow plates; the number of the metal supports is two, round holes are formed in the metal supports, and grooves are formed in the semicircular blocks; shafts on two sides of the two gears A are respectively rotatably arranged in circular holes on the two metal brackets, the gears A are meshed with saw teeth on the chuck, and a belt pulley is fixedly connected to the shaft on one side of the gears A; the two chucks are respectively installed in the sliding grooves in the two semicircular blocks of the metal bracket in a sliding manner; one end of the belt pulley A is rotatably arranged in a circular groove in one of the hollow plates; the supporting wheel is divided into two parts, a sliding block is arranged on one side, close to the inner side, of the supporting wheel, the sliding block is slidably mounted in a sliding groove in one of the T-shaped frames, a tension spring is arranged on one side of the sliding block, one end of the tension spring is fixedly connected with a plane in the sliding groove in the hollow plate, the other end of the tension spring is fixedly connected with the sliding block, a belt pulley is rotatably connected to the sliding block, and the supporting wheel is used for keeping the synchronous belt; two groups of belt pulley sets are arranged and respectively rotate on the shafts on the two hollow plates; the synchronous belt A has many, and the belt pulley on the synchronous belt A cladding gear A and one of them belt pulley in the pulley group, the belt pulley in the synchronous belt A cladding supporting wheel and one of them belt pulley in two pulley groups.
Preferably, the gripping means of the jaw portions of the tube comprises: the device comprises a baffle, a supporting block, a lever and a clamping block A; the baffle is slidably arranged in a groove in the metal bracket, one end of the baffle is provided with a plurality of top springs, and one end of each top spring is fixedly connected with a plane in the groove on the metal bracket; the other end of the top spring is fixedly connected with the baffle; the supporting block is slidably arranged in a groove on the metal bracket; the lever is provided with two grooves which are respectively rotatably arranged in the metal bracket, the bottom of the metal bracket is provided with a top spring, one end of the top spring is fixedly connected with the lever, and the other end of the top spring is fixedly connected with the inner plane of the metal bracket; two fixture blocks A are slidably mounted in the grooves in the metal bracket, and the lower ends of the fixture blocks A are clamped in the grooves in the baffle plate.
Preferably, the direction changing part includes: the crank, a gear B, a gear set, a gear C and a gear bevel gear set A; one end of the crank quadrangle is placed in the groove on the gear B; the gear B is rotatably arranged in a groove at one side of the pipe wrench box; the pipe wrench comprises a pipe wrench box, a gear set, a tension spring, a gear set and a gear B, wherein the gear set is divided into two groups, the gear set is divided into a bracket and gears, the bracket is slidably arranged in a groove in the pipe wrench box, the two gears are respectively rotatably arranged at one ends of two shafts on the bracket, the tension spring is arranged on the bracket, one end of the tension spring is fixedly connected with the bracket, the other end of the tension spring is fixedly connected with a plane in the pipe wrench box; the two gears C are respectively and rotatably arranged on a shaft in the pipe wrench box, the gears C are meshed with the gears in the bevel gear set A, and the gears C are meshed with one of the gears in the gear set; two sets of bevel gear sets A are respectively and rotatably arranged on the shaft in the pipe wrench box, and bevel gears in the bevel gear sets A are meshed with bevel gears at one end of the torsion bar.
Preferably, the direction changing portion further includes: the device comprises a torsion bar, a sleeve, a synchronous belt B, a clamping block B and a clamping strip; the two torsion bars are respectively and rotatably arranged in grooves in the pipe wrench box, one side of each torsion bar is provided with a groove, the other end of each torsion bar is fixedly connected with a bevel gear, the two torsion bars are divided into two sections, one section is internally provided with a groove, the other section is internally provided with a jacking block, and the bottom of the jacking block is provided with a jacking spring to control the torsion of the torsion bars; the two sleeves are respectively and rotatably arranged in grooves in the pipe wrench box, the sleeves are sleeved on a shaft at one end of the belt pulley A, and one side of each sleeve is provided with a groove; the two synchronous belts B are used for coating the grooves on the sleeve and the grooves on the torsion bar; two clamping blocks B are respectively and rotatably arranged in the grooves in the pipe wrench box, one end of each clamping block B is provided with a top spring, one end of each top spring is fixedly connected with the clamping block B, the other end of each top spring is fixedly connected with the plane in the pipe wrench box, and one end of each clamping block B is clamped in the groove on one side of the gear set; the two clamping strips are respectively and slidably mounted in the grooves in the pipe wrench box, and the sliding block on one side of each clamping strip is slidably mounted in the sliding groove in the clamping block B.
Preferably, the pipe wrench box is made of plastic, PA6 nylon is used, 30 glass fibers are added for ensuring the strength, and therefore the type is PA6GF 30.
Preferably, the chuck is made of 45# steel through carburizing and quenching, the carbon content of the surface layer of the high part is high, and the surface layer obtains high hardness after quenching.
Compared with the prior art, the invention has the beneficial effects that:
1. when the clamping head is used, the button on the supporting block is pressed, the supporting block pushes one end of the lever downwards, the other end of the lever pushes the clamping block A upwards, the clamping block A is separated from the baffle, the baffle outwards pushes the pipe joint through the spring to block the pipe joint, and the pipe joint is prevented from being displaced to separate from the clamping head when being unscrewed or screwed.
2. The pipe tongs in the market are single, two pipe tongs are needed when the pipe tongs are used, one pipe tong is used for fixing, the other pipe tong is used for screwing, the pipe tongs can be directly used, the other pipe tongs can replace the two pipe tongs, and the pipe tongs have great portability.
3. The pipe joint can be screwed and unscrewed by clamping the pipe joint and directly rotating the crank, so that the back and forth twisting of the common pipe tongs is avoided, and the working efficiency is improved.
Drawings
Fig. 1-4 are schematic diagrams of the overall structure of the present invention.
FIG. 5 is a schematic structural view of the pipe clamp box of the present invention.
Figures 6-12 are schematic views of the construction of the tube gripping portion of the present invention.
Fig. 13-16 are schematic views of the redirecting portion of the present invention.
Reference numerals: 1-pipe clamp box; 2-a tube jaw portion; 3-a direction changing part; 201-hollow core slab; 202-a thrust bearing; 203-T-shaped frame; 204-telescoping tube; 205-bidirectional rack; 206-L-shaped strips; 207-half tooth support bar; 208-a metal rod; 209-metal stent; 210-gear a; 211-a chuck; 212-Pulley A; 213-support wheels; 214-pulley set; 215-synchronous belt A; 216-a baffle; 217-a support block; 218-a lever; 219-Block A; 301-a crank; 302-gear B; 303-gear set; 304-gear C; 305-gear bevel gear set a; 306-a torsion bar; 307-a sleeve; 308-synchronous belt B; 309-fixture block B; 310-card strip.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in many ways other than those described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-11, a multi-functional pipe wrench comprises: the pipe wrench comprises a pipe wrench box 1, a pipe wrench clamping part 2 and a turning part 3; the pipe wrench box 1 is a shell of a tool, a handle is arranged on the pipe wrench box 1 for convenient use, the pipe wrench box 1 is made of plastic pieces, PA6 nylon is used, and 30 glass fibers are added for ensuring the strength, so the model is PA6GF 30; the pipe clamp part 2 is arranged in a groove below the pipe clamp box 1, and the pipe clamp part 2 realizes the function of clamping, screwing or unscrewing a nut of a pipe joint; the direction changing part 3 is arranged in the pipe clamp box 1, and the direction changing part 3 realizes the functions of homodromous rotation, opposite rotation and independent rotation of the chucks in the two pipe clamp parts 2.
The tube jaw portion 2 includes: a thrust bearing 202, a T-shaped frame 203, an extension tube 204, a clamping device and a clamping device; two thrust bearings 202 are respectively and fixedly arranged in two grooves in the pipe wrench box 1, tension springs are arranged at two ends of each thrust bearing 202, one ends of the tension springs are fixedly connected with the thrust bearings 202, and the other ends of the tension springs are connected with the inner parts of the circular pipes on the hollow plates 201; the T-shaped frame 203 is slidably mounted in a groove in the pipe wrench box 1, a top spring is arranged at the bottom of the T-shaped frame 203, one end of the top spring is fixedly connected with the bottom of the T-shaped frame 203, and the other end of the top spring is fixedly connected with the bottom surface of the groove in the pipe wrench box 1; the extension tube 204 is slidably installed in a square hole in the pipe wrench box 1, and one end of the extension tube 204 is fixedly connected with one of the two-way racks 205; the two clamping devices are respectively arranged on the two thrust bearings 202 in a sliding manner; the clamping devices are eight, and one clamping device is arranged on each of two sides inside the metal bracket 209.
In an alternative embodiment of the present embodiment, the clamping means of the pipe jaw portion 2 comprises, in addition to the same components as in the previous embodiment: the device comprises a hollow plate 201, a bidirectional rack 205, an L-shaped strip 206, a half-tooth supporting rod 207, a metal rod 208, a metal bracket 209, a gear A210, a belt pulley A212, a supporting wheel 213, a belt pulley group 214 and a synchronous belt A215; the hollow plate 201 has two, the round tube on one side of the hollow plate 201 is slidably mounted on the shaft of the thrust bearing 202, the other side is provided with a telescopic tube, one end of the telescopic tube is rotatably mounted in the groove in the pipe wrench box 1, and the other end of the telescopic tube is fixedly connected with the thrust bearing 202; the bidirectional rack 205 is fixedly arranged at one end of the extension tube 204; one end of an L-shaped strip 206 is fixedly arranged at the bottom end of the bidirectional rack 205, the other end of the L-shaped strip 206 is slidably arranged in the T-shaped frame 203, one end of the L-shaped strip 206 is provided with a tension spring, one end of the tension spring is fixedly connected with the L-shaped strip 206, and the other end of the tension spring is fixedly connected with the inner plane of the T-shaped frame 203; two half-tooth support rods 207 are provided, two shafts close to the sawteeth are rotatably arranged in circular grooves in the two hollow plates 201, shafts close to the lower ends are rotatably arranged in circular holes in the two metal brackets 209, and the sawteeth on the half-tooth support rods 207 are meshed with the bidirectional racks 205; two metal rods 208 are provided, and a shaft at one end of each metal rod 208 rotates and is slidably arranged in a groove in the two hollow plates 201; two metal supports 209 are provided, round holes are arranged on the metal supports 209, and grooves are arranged in the semicircular blocks; shafts on two sides of the two gears A210 are respectively rotatably arranged in circular holes on the two metal brackets 209, sawteeth on the gears A210 and the chucks 211 are mutually meshed, and a belt pulley is fixedly connected to the shaft on one side of the gear A210; the two chucks 211 are respectively arranged in the sliding grooves in the semicircular blocks of the two metal brackets 209 in a sliding way, the chucks 211 are made of 45# steel through carburizing and quenching, the carbon content of the surface layer of a high part is high, and the surface layer obtains high hardness after quenching; one end of the belt pulley A212 is rotatably arranged in a circular groove in one of the hollow plates 201; the supporting wheel 213 is divided into two parts, a sliding block is arranged on one side of the supporting wheel 213 close to the inner side, the sliding block is slidably mounted in a sliding groove on one of the T-shaped frames 203, a tension spring is arranged on one side of the sliding block, one end of the tension spring is fixedly connected with a plane inside the sliding groove on the hollow plate 201, the other end of the tension spring is fixedly connected with the sliding block, a belt pulley is rotatably connected onto the sliding block, and the supporting wheel 213 is used for keeping the synchronous belt A215 tight; two groups of belt pulley sets 214 are arranged and respectively rotate on shafts on the two hollow plates 201; the synchronous belt A215 is provided with a plurality of synchronous belts, the synchronous belts A215 cover the belt pulley on the gear A210 and one belt pulley in the belt pulley set 214, and the synchronous belts A215 cover the belt pulley in the supporting wheel 213 and one belt pulley in the two belt pulley sets 214; when the pipe joint tightening and loosening device is used, the T-shaped frame 203 is pressed downwards manually, the T-shaped frame 203 carries the two-way rack 205 to move downwards, the two-way rack 205 drives the half-tooth supporting rod 207 to rotate, the half-tooth supporting rod 207 drives the metal bracket 209 to open and then is placed on the pipe joint, the two metal brackets 209 are automatically closed through a spring when the device is loosened, the pipe joint is clamped, power is transmitted through the direction changing part 3, the belt pulley A212 is further driven to rotate, the belt pulley A212 drives the gear A210 to rotate through the synchronous belt A215, the gear A210 drives the belt pulley set 214 to rotate through the synchronous belt A215, the belt pulley set 214 drives the supporting wheel 213 to rotate through the synchronous belt A215, the belt pulley set 214 drives the other belt pulley set 214 to rotate through the synchronous belt A215, and the gear A210 drives the clamping head 211 to rotate, so that.
In an alternative embodiment of the present embodiment, the clamping means of the pipe clamping section 2 comprises, in addition to the same components as in the previous embodiment: the baffle plate 216, the supporting block 217, the lever 218 and the fixture block A219; the baffle plate 216 is slidably arranged in a groove in the metal bracket 209, one end of the baffle plate 216 is provided with a plurality of top springs, and one ends of the top springs are fixedly connected with a plane in the groove on the metal bracket 209; the other end of the top spring is fixedly connected with the baffle plate 216; the supporting block 217 is slidably mounted in a groove on the metal bracket 209; the lever 218 is provided with two grooves which are respectively and rotatably arranged in the metal bracket 209, the bottom of the metal bracket 209 is provided with a top spring, one end of the top spring is fixedly connected with the lever 218, and the other end of the top spring is fixedly connected with the inner plane of the metal bracket 209; the two fixture blocks A219 are slidably mounted in the grooves in the metal bracket 209, and the lower ends of the fixture blocks A219 are clamped in the grooves on the baffle plate 216; when the device is used, a button on the supporting block 217 is pressed, the supporting block 217 pushes one end of the lever 218 downwards, the other end of the lever 218 pushes the fixture block A219 upwards, the fixture block A219 is separated from the baffle plate 216, the baffle plate 216 outwards pushes the pipe joint to block the pipe joint, and the pipe joint is prevented from being displaced to be separated from the chuck 211 when being unscrewed or screwed.
In an alternative implementation of the embodiment of the invention, the redirecting part 3 comprises, in addition to the same components as in the previous embodiment: a crank 301, a gear B302, a gear set 303, a gear C304 and a bevel gear set A305; one end of the quadrangle of the crank 301 is placed in a groove on the gear B302; the gear B302 is rotatably arranged in a groove at one side of the pipe wrench box 1; the pipe wrench comprises a pipe wrench box 1, a gear set 303, a tension spring, a gear B302 and a gear set 303, wherein the gear set 303 is divided into two groups, the gear set 303 is divided into a bracket and gears, the bracket is slidably mounted in a groove in the pipe wrench box 1, the two gears are respectively rotatably mounted at one ends of two shafts on the bracket, the tension spring is arranged on the bracket, one end of the tension spring is fixedly connected with the bracket, the other end of the tension spring is fixedly connected with a plane in the pipe wrench box; two gears C304 are respectively rotatably arranged on the shaft in the pipe wrench box 1, the gear C304 is meshed with the gears in the bevel gear set A305, and the gear C304 is meshed with one of the gears in the gear set 303; two bevel gear sets A305 are respectively rotatably mounted on the shaft inside the pipe wrench box 1, and bevel gears in the bevel gear sets A305 are meshed with bevel gears at one end of the torsion bar 306.
In an alternative implementation of the embodiment of the present invention, the direction changing portion 3 further includes, in addition to the same components as in the previous embodiment: a torsion bar 306, a sleeve 307, a synchronous belt B308, a fixture block B309 and a fixture strip 310; the two torsion bars 306 are respectively rotatably arranged in grooves in the pipe wrench box 1, one side of each torsion bar 306 is provided with a groove, the other end of each torsion bar 306 is fixedly connected with a bevel gear, the two torsion bars 306 are provided with two sections, one section is internally provided with a groove, the other section is internally provided with a top block, and the bottom of the top block is provided with a top spring to control the torsion of the torsion bars 306; two sleeves 307 are respectively and rotatably arranged in a groove in the pipe wrench box 1, the sleeves 307 are sleeved on a shaft at one end of the belt pulley A212, and a groove is formed in one side of each sleeve 307; two synchronous belts B308 are provided, and the synchronous belts B308 coat the groove on the sleeve 307 and the groove on the torsion bar 306; two clamping blocks B309 are respectively rotatably mounted in the grooves in the pipe wrench box 1, one end of each clamping block B309 is provided with a top spring, one end of each top spring is fixedly connected with the clamping block B309, the other end of each top spring is fixedly connected with the plane in the pipe wrench box 1, and one end of each clamping block B309 is clamped in the groove on one side of the gear set 303; the two clamping strips 310 are respectively and slidably mounted in a groove in the pipe wrench box 1, and a sliding block on one side of each clamping strip 310 is slidably mounted in a sliding groove in the clamping block B309; specifically, when in use, one end of each of four corners of the crank 301 is inserted into a groove on the gear B302, a button on the gear set 303 and the clamping strip 310 is pressed to control engagement and disengagement of any one of two gears in the gear set 303 with the gear B302, then the crank 301 is rotated to drive the gear B302 to rotate, the gear B302 drives the gears in the gear set 303 to rotate, the gears in the gear set 303 drive the gear C304 to rotate, the gear C304 drives the gear bevel gear set a305 to rotate, the gear bevel gear set a305 drives the torsion bar 306 to rotate, the torsion bar 306 drives the sleeve 307 to rotate through the timing belt B308, the sleeve 307 drives the pulley a212 to rotate, and power is further transmitted to the pipe clamping part 2.
The working principle is as follows: when the pipe joint clamping device is used, the two pipe clamp parts 2 are pulled back to the upper sides of the pipe joints, the T-shaped frame 203 is pressed downwards manually, the T-shaped frame 203 drives the two-way rack 205 to move downwards, the two-way rack 205 drives the half-tooth supporting rod 207 to rotate, the half-tooth supporting rod 207 drives the metal supports 209 to open, then the metal supports are placed on the pipe joints, hands are released, the two metal supports 209 are closed automatically through the springs, and the pipe joints are clamped;
then, a button on a supporting block 217 is pressed, the supporting block 217 pushes one end of a lever 218 downwards, the other end of the lever 218 pushes a fixture block A219 upwards, the fixture block A219 is separated from a baffle plate 216, the baffle plate 216 pushes the pipe joint outwards through a spring, and the pipe joint is prevented from being displaced and separated from the chuck 211 when being unscrewed or screwed;
then one end of the four corners of the crank 301 is inserted into a groove on the gear B302, the tightening or loosening is controlled by pressing buttons on the gear set 303 and the clamping strip 310, the gears are screwed in the same direction or are screwed one by one in an idle mode, then the crank 301 rotates to drive the gear B302 to rotate, the gear B302 drives the gear in the gear set 303 to rotate, the gear in the gear set 303 drives the gear C304 to rotate, the gear C304 drives the gear bevel gear set A305 to rotate, the gear bevel gear set A305 drives the torsion bar 306 to rotate, the torsion bar 306 drives the sleeve 307 to rotate through the synchronous belt B308, the sleeve 307 drives the pulley A212 to rotate, the pulley A212 drives the gear A210 to rotate through the synchronous belt A215, the gear A210 drives the belt pulley set 214 to rotate through the synchronous belt A215, the belt pulley set 214 drives the supporting pulley 213 to rotate through the synchronous belt A215, the supporting pulley 213 drives the other belt pulley set 214 to rotate through the synchronous belt A215, the gear A210 drives the chuck 211 to rotate so as to screw or unscrew the pipe joint;
after the use, if the clamping head 211 is not returned to the original position and cannot be opened, the baffle plate 216 is pulled upwards manually, the clamping block A219 locks the baffle plate, then the pipe clamping part 2 is pulled towards two sides, the crank 301 is rotated to adjust the clamping head 211 to a proper position, and the pipe clamping part 2 is opened to retract the tool, so that the use is completed.
Claims (7)
1. A multi-functional pipe wrench, comprising: the pipe wrench comprises a pipe wrench box (1), a pipe wrench clamping part (2) and a turning part (3); the pipe clamp box (1) is a shell of a tool, and a handle is arranged on the pipe clamp box (1) for convenient use; the pipe clamp part (2) is arranged in a groove below the pipe clamp box (1), and the pipe clamp part (2) realizes the function of clamping, screwing or unscrewing a nut of a pipe joint; the direction changing part (3) is arranged in the pipe clamp box (1), and the direction changing part (3) realizes the functions of homodromous rotation, opposite rotation and independent rotation of the chucks in the two pipe clamp parts (2);
the tube jaw portion (2) comprises: a thrust bearing (202), a T-shaped frame (203), an extension tube (204), a clamping device and a clamping device; two thrust bearings (202) are respectively and fixedly arranged in two grooves in the pipe clamp box (1), tension springs are arranged at two ends of each thrust bearing (202), one ends of the tension springs are fixedly connected with the thrust bearings (202), and the other ends of the tension springs are connected with the inner parts of round pipes on the hollow plates (201); the T-shaped frame (203) is slidably mounted in a groove in the pipe clamp box (11), a top spring is arranged at the bottom of the T-shaped frame (203), one end of the top spring is fixedly connected with the bottom of the T-shaped frame (203), and the other end of the top spring is fixedly connected with the bottom surface of the groove in the pipe clamp box (1); the telescopic pipe (204) is slidably arranged in a square hole in the pipe clamp box 1), and one end of the telescopic pipe (204) is fixedly connected with one of the two-way racks (205); the two clamping devices are respectively arranged on the two thrust bearings (202) in a sliding way; the clamping devices are eight, and two sides in the metal bracket (209) are respectively provided with one clamping device.
2. A multi-purpose pipe wrench according to claim 1, wherein said gripping means of said pipe jaw portion (2) comprises: the device comprises a hollow plate (201), a bidirectional rack (205), an L-shaped strip (206), a half-tooth supporting rod (207), a metal rod (208), a metal bracket (209), a gear A (210), a belt pulley A (212), a supporting wheel (213), a belt pulley group (214) and a synchronous belt A (215); the hollow plate (201) is provided with two hollow plates, a round pipe at one side of the hollow plate (201) is slidably arranged on a shaft on the thrust bearing (202), a telescopic pipe is arranged at the other side of the hollow plate, one end of the telescopic pipe is rotatably arranged in a groove in the pipe wrench box (1), and the other end of the telescopic pipe is fixedly connected with the thrust bearing (202); the bidirectional rack (205) is fixedly arranged at one end of the extension tube (204); one end of an L-shaped strip (206) is fixedly arranged at the bottom end of the bidirectional rack (205), the other end of the L-shaped strip (206) is slidably arranged in the T-shaped frame (203), one end of the L-shaped strip (206) is provided with a tension spring, one end of the tension spring is fixedly connected with the L-shaped strip (206), and the other end of the tension spring is fixedly connected with the inner plane of the T-shaped frame (203); two half-tooth support rods (207) are provided, two shafts close to the sawteeth are rotatably arranged in circular grooves in the two hollow plates (201), shafts close to the lower ends are rotatably arranged in circular holes in the two metal brackets (209), and the sawteeth on the half-tooth support rods (207) are meshed with the two-way racks (205); two metal rods (208) are arranged, and a shaft at one end of each metal rod (208) rotates and is slidably arranged in grooves in the two hollow plates (201); two metal supports (209) are provided, round holes are arranged on the metal supports (209), and grooves are arranged in the semicircular blocks; shafts on two sides of the two gears A (210) are respectively and rotatably arranged in circular holes on the two metal brackets (209), sawteeth on the gears A (210) and the chuck (211) are meshed with each other, and a belt pulley is fixedly connected to the shaft on one side of the gears A (210); the two clamping heads (211) are respectively and slidably arranged in sliding grooves in the semicircular blocks of the two metal brackets (209); one end of a belt pulley A (212) is rotatably arranged in a circular groove in one hollow plate (201); the supporting wheel (213) is divided into two parts, a sliding block is arranged on one side, close to the inner side, of the supporting wheel (213), the sliding block is slidably mounted in a sliding groove in one T-shaped frame (203), a tension spring is arranged on one side of the sliding block, one end of the tension spring is fixedly connected with a plane in the sliding groove in the hollow plate (201), the other end of the tension spring is fixedly connected with the sliding block, a belt pulley is rotatably connected onto the sliding block, and the supporting wheel (213) is used for keeping the synchronous belt A (215) tight; two groups of belt pulley sets (214) are arranged and respectively rotate on shafts on the two hollow plates (201); the synchronous belt A (215) is provided with a plurality of synchronous belts, the synchronous belts A (215) cover the belt pulley on the gear A (210) and one belt pulley in the belt pulley set (214), and the synchronous belts A (215) cover the belt pulley in the supporting wheel (213) and one belt pulley in the two belt pulley sets (214).
3. A multi-purpose pipe wrench according to claim 1, wherein said gripping means of the pipe jaw portions (2) comprises: the device comprises a baffle (216), a supporting block (217), a lever (218) and a clamping block A (219); the baffle (216) is slidably mounted in a groove in the metal bracket (209), one end of the baffle (216) is provided with a plurality of top springs, and one ends of the top springs are fixedly connected with a plane in the groove on the metal bracket (209); the other end of the top spring is fixedly connected with a baffle plate (216); the supporting block (217) is slidably arranged in a groove on the metal bracket (209); the lever (218) is provided with two grooves which are respectively rotatably arranged in the metal bracket (209), the bottom of the metal bracket (209) is provided with a top spring, one end of the top spring is fixedly connected with the lever (218), and the other end of the top spring is fixedly connected with the inner plane of the metal bracket (209); two fixture blocks A (219) are slidably mounted in the inner groove of the metal bracket (209), and the lower ends of the fixture blocks A (219) are clamped in the groove on the baffle plate (216).
4. A multi-functional pipe wrench according to claim 1, characterized in that the direction-changing portion (3) comprises: a crank (301), a gear B (302), a gear set (303), a gear C (304) and a gear bevel gear set A (305); one end of the quadrangle of the crank (301) is placed in a groove on the gear B (302); the gear B (302) is rotatably arranged in a groove at one side of the pipe wrench box (1); the pipe clamp box comprises two groups of gear sets (303), wherein the gear sets (303) are divided into a support and gears, the support is slidably mounted in a groove in the pipe clamp box (1), the two gears are respectively rotatably mounted at one ends of two shafts on the support, a tension spring is arranged on the support, one end of the tension spring is fixedly connected with the support, the other end of the tension spring is fixedly connected with a plane in the pipe clamp box (1), and the gears in the gear sets (303) are meshed with a gear B (302); two gears C (304) are respectively and rotatably arranged on a shaft in the pipe wrench box (1), the gears C (304) are meshed with gears in the bevel gear set A (305), and the gears C (304) are meshed with one gear in the gear set (303); two groups of bevel gear sets A (305) are respectively and rotatably arranged on a shaft in the pipe wrench box (1), and bevel gears in the bevel gear sets A (305) are meshed with bevel gears at one end of a torsion bar (306).
5. A multi-functional pipe wrench according to claim 4, characterized in that the direction-changing portion (3) further comprises: the device comprises a torsion bar (306), a sleeve (307), a synchronous belt B (308), a clamping block B (309) and a clamping strip (310); the two torsion bars (306) are respectively rotatably arranged in grooves in the pipe wrench box (1), one side of each torsion bar (306) is provided with the groove, the other end of each torsion bar (306) is fixedly connected with a bevel gear, two sections of the torsion bars (306) are arranged, one section of each torsion bar is internally provided with the groove, the other section of each torsion bar is internally provided with a jacking block, and the bottom of each jacking block is provided with a jacking spring for controlling the torsion of the torsion bar (306); two sleeves (307) are respectively and rotatably arranged in a groove in the pipe wrench box (1), the sleeves (307) are sleeved on a shaft at one end of the belt pulley A (212), and a groove is formed in one side of each sleeve (307); two synchronous belts B (308) are arranged, and the synchronous belts B (308) cover the groove on the sleeve (307) and the groove on the torsion bar (306); two clamping blocks B (309) are respectively rotatably mounted in a groove in the pipe wrench box (1), one end of each clamping block B (309) is provided with a top spring, one end of each top spring is fixedly connected with the corresponding clamping block B (309), the other end of each top spring is fixedly connected with a plane in the pipe wrench box (1), and one end of each clamping block B (309) is clamped in the groove on one side of the gear set (303); the two clamping strips (310) are respectively and slidably mounted in a groove in the pipe wrench box (1), and a sliding block on one side of each clamping strip (310) is slidably mounted in a sliding groove in the clamping block B (309).
6. A multi-purpose pipe wrench according to claim 1, wherein the wrench box (1) is made of plastic, and is made of PA6 nylon, 30 glass fiber is added for strength, so the model is PA6GF 30.
7. The multi-functional pipe wrench as claimed in claim 1, wherein the collet (211) is made of 45# steel by carburizing and quenching, and the carbon content of the surface layer of the high part is high, and the surface layer obtains high hardness after quenching.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110202318.8A CN112975847B (en) | 2021-02-23 | 2021-02-23 | Multifunctional pipe tongs |
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| CN202110202318.8A CN112975847B (en) | 2021-02-23 | 2021-02-23 | Multifunctional pipe tongs |
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| CN112975847B CN112975847B (en) | 2022-06-21 |
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| US20120067177A1 (en) * | 2010-09-22 | 2012-03-22 | Paul Sang Yu | Multi-functional jaw wrench combined with self adjusting socket |
| CN207387532U (en) * | 2017-08-11 | 2018-05-22 | 黄冈高科铝业压铸有限公司 | A kind of novel pipe pliers of adjustable binding clip size |
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|---|---|
| CN112975847B (en) | 2022-06-21 |
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Effective date of registration: 20220607 Address after: 061000 Fuzhuang Development Zone, Nanpi County, Cangzhou City, Hebei Province Applicant after: CANGZHOU DEAN EXPLOSION-PROOF SPECIAL TOOL MANUFACTURING CO.,LTD. Address before: 076481 No.1, hongqitan village, yannaobao administrative village, yuyuying Township, Chabei administrative district, Zhangjiakou City, Hebei Province Applicant before: Liu Yanlong |
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