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52 results about "Pipe wrench" patented technology

A pipe wrench is any of several types of wrench that are designed to turn threaded pipe and pipe fittings for assembly (tightening) or disassembly (loosening). The Stillson wrench, or Stillson-pattern wrench, is the usual form of pipe wrench, especially in North America. The Stillson name is that of the original patent holder, who licensed the design to a number of manufacturers. The patent expired decades ago. Another type of wrench often used on pipes, the plumber wrench, is also called a pipe wrench in some places.

Adjustable equal-height sizing block for machining large rotary table

The utility model relates to the technical field of finish machining of large rotary tables of boring and milling machines, in particular to an adjustable equal-height sizing block for machining a large rotary table. The device comprises a plurality of equal-height sizing blocks which are fixedly mounted on the table top of the large rotary table; the equal-height sizing block comprises an upper seat body, the upper seat body is connected with a lower seat body, cover plates are installed on the outer side of the upper seat body and the outer side of the lower seat body, a copper flange is installed at the top end of the upper seat body, the copper flange is connected with the upper seat body, a jacking column is installed in the upper seat body, a limiting block is installed at the bottom end of the outer side of the lower seat body, and a wedge block is installed at the bottom end in the lower seat body. A wedge block is arranged at the bottom end of the jacking column, one side of the wedge block is the inner wall of the lower seat body, a hexagon screw is installed on the other side of the wedge block, the other side of the hexagon screw is connected with a lengthened sleeve wrench, a sleeve wrench support is arranged at the bottom end of the lengthened sleeve wrench, and the bottom end of the sleeve wrench support is the ground. The equal-height sizing block provided by the utility model not only has the same height in the original state, but also can ensure the same height in real time, so that the labor intensity of an operator is effectively reduced.
Owner:QIQIHAR NO 2 MASCH TOOL GRP CO LTD

Anti-skid oil pipe wrench suitable for greasy dirt environment

The invention relates to the technical field of oil pipe wrenches, and particularly discloses an anti-skid oil pipe wrench suitable for an oil contamination environment, which comprises a fixed base, an upper clamping plate is slidably connected to the side surface of the fixed base, an upper handle is fixedly connected to the side surface of the fixed base, and a clamping device is fixedly connected to the center position of the side surface of the fixed base. A lower clamping plate is slidably connected to the position, located below the upper clamping plate, of the side face of the fixing base, an upper supporting base is rotatably connected to the bottom of the fixing frame, an upper sliding strip is fixedly connected to the position, located on one side of the upper supporting base, of the bottom of the fixing frame, and an upper rack is fixedly connected to the center of the bottom of the upper base; the side face of the upper base is slidably connected with the side face of the fixed base, the side face of the upper rack is meshed with the side face of the clamping device, and the anti-skid oil pipe wrench suitable for the oil contamination environment achieves the purpose of preventing grease from sliding and being difficult to rotate.
Owner:HANGZHOU LAOTAN HARDWARE TOOLS CO LTD

A type of bamboo-shaped screw with a cap

ActiveCN224433069UPipe wrenchBolt cutter
A capped bamboo-joint screw includes a screw body with a set of threaded grooves and a set of unthreaded areas on its outer surface. An adapter post is connected to the left side of the screw body, and a nut is connected to the left side of the adapter post. This device utilizes the alternating distribution of threaded grooves and unthreaded areas. When adjusting the screw length, the user can use pipe wrenches or wire cutters to clamp the unthreaded area and precisely cut it off along a preset break point. The threaded grooves remain intact after cutting, not affecting subsequent threaded connections with nuts or installation components, greatly expanding the length adaptability range and reducing the need for stock specifications. Simultaneously, the Phillips head groove on the left side of the nut, in conjunction with the adapter post, ensures that torque is effectively transmitted to the threaded section when tightening the screw with tools, enhancing installation stability. Furthermore, the integrated metal cap design makes this product aesthetically pleasing and provides excellent protection.
Owner:广东顶固集创家居股份有限公司

Multifunctional fire-fighting wrench

The utility model provides a multifunctional fire-fighting wrench, which relates to the technical field of fire-fighting instruments and comprises a fire hydrant wrench, the fire hydrant wrench comprises an open wrench, an inner pentagonal sleeve and a wrench body, the inner pentagonal sleeve and the open wrench are arranged at the front end of the wrench body, a pipe wrench is arranged at the tail end of the wrench body, and a sleeve component is fixedly arranged on the wrench body. According to the fire hydrant wrench, the pipe wrench and the sleeve assembly are arranged on the fire hydrant wrench, so that the fire hydrant wrench with a single function has other functions, the sleeve head of the sleeve assembly can be replaced, and the sleeve head can be replaced according to actual requirements; the outdoor fire hydrant blank cap and the outdoor water suction pipe blank cap can be opened, closed, repaired and maintained only through a small number of tools, carrying is convenient, working efficiency is high, rescue of a fire scene is facilitated, and the effect of saving time and labor is achieved.
Owner:钟鹏

Pipe wrenches (tongue wrenches, monkey wrenches)

1. The name of the design product: the pipe pliers (the mouth pliers, the force pliers). 2. The use of the design product: special-shaped / circular workpiece clamping positioning, accurate fixing of workpiece position in welding (such as spot welding, argon arc welding) operation, avoiding displacement during welding. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: perspective view.
Owner:SHANGHAI XOOZ MACHINERY EQUIP CO LTD

Pipe wrench

PendingUS20260061567A1PliersSpannersPipe wrenchPhysics
A pipe wrench is provided, wherein the pipe wrench includes: a first clamp body including a first handle portion, a first clamping portion and a body portion connected between the first handle portion and the first clamping portion, the body portion including a guide groove having a tooth row; a second clamp body including a second handle portion, a second clamping portion and a pivot hole; and a button inserted in the guide groove and the pivot hole, including a button base, a toothed member and an elastic member disposed between the button base and the toothed member, the button base being movable relative to the guide groove to disengage the toothed member from the tooth row, the toothed member being movable relative to the button base in a radial direction of the button and releasably engaged with the tooth row.
Owner:PROXENE TOOLS CO LTD

Logging cable slurry cleaning tool

The utility model discloses a mud cleaning tool for a logging cable, and belongs to the technical field of logging instruments. The mud cleaning tool for the logging cable comprises two sponge blocks arranged in a port of a hydraulic pipe twisting machine, the hydraulic pipe twisting machine is arranged at a wellhead of a detection well, a first hook-and-loop fastener is arranged between the inner side wall of the hydraulic pipe twisting machine and the sponge blocks, and the first hook-and-loop fastener comprises a first rough surface adhered to the inner side wall of the hydraulic pipe twisting machine and a second rough surface adhered to the outer side wall of the hydraulic pipe twisting machine. The cable fixing device comprises two sponge blocks and first smooth surfaces adhered to the outer surfaces of the sponge blocks, a second magic tape is arranged between the two sponge blocks, the second magic tape comprises a second rough surface fixed to one sponge block and a second smooth surface fixed to the other sponge block, and a cable penetrates through the space between the two sponge blocks. According to the utility model, on one hand, the cable slurry cleaning device plays a role in cleaning cable slurry, and on the other hand, plays a role in protecting the cable, prevents the cable from being abraded with the port of the hydraulic pipe twisting machine when the cable is lifted upwards, and protects the cable.
Owner:2003 INST OF NUCLEAR IND

Tube tongs (new German type)

ActiveCN309954016SPipe wrenchPipe
1. Name of the product in this design: Pipe wrench (new German style). 2. Purpose of this design: For the assembly and disassembly of pipes. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:葛继民

Tool for quickly disassembling casing thread protector

The utility model discloses a tool for quickly disassembling a casing thread protector, which comprises a base, a central screw rod is fixedly connected to the center of the base, and an upper end cover is sleeved on the central screw rod in a threaded manner; the edge of the upper end cover is evenly connected with a plurality of lug plates in the circumferential direction, and the lower ends of the lug plates are connected with tooth plates. The utility model successfully solves the problems of high labor intensity, low working efficiency and the like when a single person or multiple persons use tools such as a pipe wrench, an F-shaped wrench, a crowbar, a hammer and the like to disassemble the casing thread protector in the drilling and workover period. And major safety risks caused by injury accidents due to poor communication or wrong matching when a plurality of persons cooperate with each other to disassemble the casing thread protector are solved. The dismounting tool can be used for rapidly and conveniently dismounting the casing thread protector, is strong in adaptive capacity, and can be suitable for dismounting the casing thread protector with the size range of 6 ''-10'', so that the dismounting operation of the casing thread protector is safer, more convenient and more efficient.
Owner:ZHANJIANG BRANCH OF CHINA NATIONAL OFFSHORE OIL CORP

Hydraulic energy-saving system of pipe screwing machine

The utility model discloses a hydraulic energy-saving system of a pipe screwing machine, which relates to the technical field of hydraulic systems and comprises a hydraulic oil tank of the pipe screwing machine, a hydraulic oil pump, an oil inlet pipe, an oil outlet pipe, an oil suction pipe and an oil return pipe, the hydraulic oil pump is mounted on the hydraulic oil tank of the pipe screwing machine, and an oil inlet of the hydraulic oil pump is connected with the oil suction pipe arranged in the hydraulic oil tank of the pipe screwing machine. The heat dissipation structure is arranged on the surface of the hydraulic oil tank of the pipe screwing machine, the effective heat dissipation area of the hydraulic oil tank of the pipe screwing machine can be increased, heat in the hydraulic oil tank can be rapidly dissipated through natural heat dissipation, meanwhile, the heat dissipation fan is installed right in front of the heat dissipation structure, the heat dissipation effect is good, and the heat dissipation effect is good. According to the hydraulic energy-saving system of the pipe screwing machine, the flowing speed of air around the heat dissipation structure can be increased, heat on the heat dissipation structure can be rapidly conducted into the surrounding air, and therefore the heat dissipation efficiency of the hydraulic energy-saving system of the pipe screwing machine can be further improved, and the energy-saving effect is achieved.
Owner:CHANGZHOU YONGCHI TECH CO LTD

Pin-removing and pipe-drawing pliers for mining hydraulic high-pressure pipeline

The utility model discloses a pair of mining hydraulic high-pressure pipeline pin-removing and pipe-drawing pliers, which comprises a hand pump, the front end of the hand pump is provided and communicated with the hand pump, the output end of the hand pump is provided with telescopic inclined iron, one end of the hand pump, which is provided with the telescopic inclined iron, is rotatably provided with a pipe pressing mechanism and a supporting mechanism, and the telescopic inclined iron is positioned between the pipe pressing mechanism and the supporting mechanism; the pipe pressing mechanism comprises a supporting block, one end of the supporting block is hinged to the end face of the hand pump, the other end of the supporting block is fixedly connected with a hoop, an adjusting bolt penetrates through the hoop in a threaded mode, the end, in the hoop, of the adjusting bolt is fixedly connected with a movable clamping block, and the lower end of the supporting block is an inclined face and makes contact with the inclined face of the upper portion of the telescopic inclined iron in a matched mode. According to the device, the hand pump principle and the slope principle are utilized, the high-pressure pipe is automatically pulled out, the labor intensity and the safety risk are reduced, the pipe pressing mechanism and the supporting mechanism are both designed to be adjustable, the device can adapt to high-pressure pipes and connectors of different models, and the universality and practicability of the device are improved.
Owner:SHANXI SHUANGKE ENGINEERING MACHINERY CO LTD

Drill rod clamping and pipe screwing device

The invention relates to a drill rod clamping and pipe screwing device, which relates to the technical field of drill rod tripping equipment, and comprises a rack, which is vertically provided with a through hole for a drill rod to pass through in a penetrating manner; the clamp holder assembly is fixedly mounted on the rack and is used for clamping a next drill rod; the pipe twisting device assembly is positioned above the clamping device assembly; one end of the pipe screwing seat is fixedly connected to the inner side of the pipe screwing gear ring, the pipe screwing seat is connected to the rack in a sliding mode, the hoop is connected to the other end of the pipe screwing seat in a sliding mode, the driving end of the pipe screwing driving piece is connected to the pipe screwing gear ring in a transmission mode, and the hoop is used for clamping a previous drill pipe. By the adoption of the technical scheme, clamping and pipe screwing operation of the drill rod can be smoothly achieved, and the probability of personnel injury is reduced.
Owner:CHINA GEOLOGICAL SURVEY HARBIN NATURAL RESOURCES COMPREHENSIVE SURVEY CENT

A master jaw transmission for a pipe wrench

A kind of main tong transmission device of pipe wrench, including control system, including transmission case, the inside of which is provided with shaft coupling II, one end of the shaft coupling II is fixedly connected with speed reducer shaft, the other end is fixedly connected with power gear shaft;The outer edge of the power box is provided with speed reducer, the speed reducer one end is connected with motor by shaft coupling I, and speed reducer shaft is fixedly connected by shaft coupling II and power gear shaft;Main tong internal power gear is installed on power gear shaft and engages with idler gear, and the idler gear engages with large gear ring;Motor and control system are electrically connected.The utility model discloses by adjusting the rotating speed of motor to control the fast and slow of main tong clamping device screwing speed, has realized the stepless regulation between high speed and low speed when pipe joint thread is screwed, avoids the phenomenon that screwing torque breaks through torque upper limit and over-tightens, while the actual demand of low speed large torque and high speed small torque in the process of screwing can be realized, protects thread, improves work efficiency.
Owner:LANPEC TECHNOLOGIES LIMITED

Tube tongs (25-01)

ActiveCN309954017SPipe wrenchHand tool
1. Name of the product in this design: Pipe wrench (25-01). 2. Purpose of this design: A manual tool for rotating steel pipe workpieces. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:JINHUA LINGYI TRADING CO LTD

Method for quickly adjusting opening amount of multifunctional large-opening wrench

The invention relates to the technical field of manual hardware tools, in particular to a method for rapidly adjusting the opening amount of a multifunctional large-opening wrench. Comprising a wrench body and a wrench opening, a gear shifting tooth position is arranged in the middle of the wrench body, a gear shifting pin penetrates through a pin hole, the gear shifting tooth position enables the wrench body and the wrench opening to be assembled and connected, a smooth face and a gear shifting tooth shape matched with the gear shifting tooth position are arranged on the side face of the gear shifting pin, a button is arranged at one end of the gear shifting pin, and the other end of the gear shifting pin makes contact with a reed fixed to the wrench opening. An arc groove and a positioning hole are formed in the positions, clamping a workpiece, of the head of the wrench body and the head of the wrench opening respectively, a quick-change head is assembled in the arc groove, and the quick-change head is connected with the wrench body and the wrench opening through an elastic pin structure installed in the positioning hole. When the gear shifting pin is pressed to enable the gear tooth form to be separated from the gear shifting tooth position, the wrench opening can quickly slide along the gear shifting tooth position, the opening can be quickly adjusted, and the working efficiency is improved; the wrench is diversified in function, bolts or nuts can be screwed, and the wrench can be used as a pipe wrench or a bathroom wrench by quickly replacing different quick-change heads according to requirements.
Owner:WEIHAISHIWEILI TOP GRADE TOOL CO

tube tongs

ActiveCN310101907SPipe wrenchPipe fitting
1. The name of the design product: pipe wrench. 2. The use of the design product: for fastening or disassembling pipe fittings. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.
Owner:威海市力钰实业有限公司

Wheel disc type shallow spiral drill centralizing device

The utility model relates to a wheel disc type shallow layer spiral drill centralizing device which comprises a wheel disc, a drill rod connector, a spiral drill, a centralizing frame and a pipe screwing wrench, the wheel disc is connected with the spiral drill through the drill rod connector, the spiral drill penetrates through the centralizing frame so as to centralize the spiral drill in the drilling process, and the pipe screwing wrench is hinged to a bottom plate of the centralizing frame so as to disassemble and assemble the spiral drill. According to the righting device for the wheel disc type shallow layer spiral drill, automatic righting in the drilling process of the spiral drill is achieved through the arrangement of the two righting openings in the righting frame, the spiral drill is rapidly disassembled through the fact that the pipe screwing wrench is hinged to the bottom plate of the righting frame, and the righting device is simple in structure, convenient to manufacture, high in efficiency, safe, reliable and suitable for popularization and application. And the labor cost in the exploration process of the shallow spiral drill is saved.
Owner:CHINA SHIPBUILDING IND INST OF THE ENG INVESTIGATION & DESIGN CO LTD

Pipe wrench (FA)

ActiveCN310043591SPipe wrenchPipe
1. Name of the product in this design: Pipe wrench (FA). 2. Purpose of this design: for the installation and disassembly of tubular components, etc. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.
Owner:ZHUJI ITOP HARDWARE TOOL CO LTD

Portable light pipe wrench

The invention relates to the technical field of hardware tools, in particular to a portable light pipe wrench which comprises a wrench handle, and adjusting teeth are arranged on the portion, close to the front end, of the outer side of the wrench handle; the upper plier body is rotationally mounted at the front end of the plier handle through a pin shaft, and an upper jaw assembly is arranged in the upper plier body; the rectangular sliding seat sleeves the periphery of the forceps handle, an adjusting ring matched with the adjusting teeth is arranged in the rectangular sliding seat, and one end of the rectangular sliding seat is fixedly connected with a supporting seat; the lower jaw is detachably and fixedly mounted at the top end of the supporting seat; through the screw connection of the upper jaw and the triangular prism and the magnetic type detachable structure of the lower jaw and the supporting seat, the independent replacement and flexible switching of the upper jaw and the lower jaw are realized. When the jaw is abraded, the whole pipe wrench does not need to be replaced, and only a single jaw needs to be replaced, so that the use cost is reduced; and meanwhile, different types of jaws with thin tooth surfaces, middle tooth surfaces, thick tooth surfaces and the like can be selected according to the material and the surface state of the pipe fitting, so that the pipe fitting is prevented from being damaged, and the clamping stability is improved.
Owner:WEIHAISHIWEILI TOP GRADE TOOL CO

Adjustable pipe wrench convenient to disassemble

The utility model relates to the technical field of tools, and discloses an adjustable pipe wrench convenient to disassemble, which comprises a wrench seat, a movable toothed plate pin shaft and a fixed seat are respectively arranged at the upper end and the lower end in the wrench seat, and a pipe wrench nut is rotatably connected in the upper end of the wrench seat. A fixed jaw and a movable jaw are fixedly installed at the left end of the fixed seat and the left end of the movable toothed plate pin shaft respectively, and through the collaborative design of the clamp seat, the fixed seat, the movable toothed plate pin shaft, the pipe clamp nut, the first positioning plug pin and the second positioning plug pin, the movable toothed plate pin shaft can flexibly move in the clamp seat by rotating the pipe clamp nut. After the fixed seat is inserted into the clamp seat, a locking bolt penetrates through a locking hole for fastening, a first positioning bolt and a second positioning bolt are respectively fixed at the upper end and the lower end of the fixed seat by using bolts, and the other end of the bolt is inserted into a positioning slot, so that the design is convenient to disassemble, and is convenient to use. The problem that an integral pipe wrench is difficult to disassemble and clean is solved.
Owner:ZHANGJIAGANG ZHONGTIANDA TOOLS CO LTD

Pipe wrench (monkey 25-02)

ActiveCN309954094SPipe wrenchWire rod
1. Name of the product in this design: Pipeline wrench (pointed 25-02). 2. Purpose of this product design: Pliers for clamping and adjusting wires and tubing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
Owner:JINHUA LINGYI TRADING CO LTD

Electric pipe tongs

ActiveCN310175145SPipe wrenchPipe fitting
1. The name of the design product: electric pipe wrench. 2. The use of the design product: the design product is an electric pipe wrench, which is used to fasten steel bars, sleeves, steel pipes, pipe fittings or nuts. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: design 1 perspective view. 5. Other circumstances that need to be explained: the design includes three similar designs, including design 1, design 2 and design 3; among them, design 1 is the basic design.
Owner:BEIBO INTELLIGENT TECH QINHUANGDAO CO LTD

Portable pipe wrench

The utility model relates to the technical field of pipe tongs, in particular to a portable pipe tong which comprises a positioning seat and a clamping seat which are arranged on a base, a positioning tooth seat is arranged on the positioning seat, a pair of clamping tongs is rotatably connected onto the clamping seat, a counterweight beam is arranged at one end, far away from the clamping seat, of the positioning seat, and the positioning tooth seat is matched with the clamping tongs, so that the positioning tooth seat and the clamping tongs are matched with each other. The pipe fitting can be locked, so that the pipe fitting can be conveniently operated, in order to improve the stability of the pipe fitting locked on the positioning tooth holder during machining, a balance weight beam is arranged at the end, away from the clamping base, of the positioning base, stress on the positioning base is balanced through the balance weight beam, toppling in the operation process is avoided, and the machining precision of the pipe fitting is improved. And the balance weight beam extends to the upper side of the base in the horizontal direction, manual taking can be facilitated, and the use convenience of the equipment is improved.
Owner:ZHANGJIAGANG RUIGUAN TOOLS CO LTD

electric pipe wrench

1. Name of the designed product: electric pipe wrench (flower basket screw). 2. Use of the designed product: used as electric pipe wrench. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.
Owner:ZHUHAI HUAYA MACHINERY TECH CO LTD

Auxiliary tool for maintaining guide vane shaft of gas turbine

The utility model belongs to the technical field of gas turbines, and discloses an auxiliary tool for maintaining a guide vane shaft of a gas turbine, the auxiliary tool for maintaining the guide vane shaft of the gas turbine comprises a clamping sleeve, two side lugs, a connecting piece and an ejector rod, the two clamping pieces are oppositely buckled to form a fixing hole, the two side lugs are respectively arranged on the two sides of the clamping pieces, and the ejector rod is arranged on the connecting piece. The connecting piece sequentially penetrates through the mounting holes of the corresponding side lugs of the two clamping pieces so that the fixing hole can lock the guide vane shaft, the ejector rod is rotationally arranged in the jackscrew hole and can move in the axis direction of the jackscrew hole, the ejector rod can rotate around the axis of the jackscrew hole and the axis of the fixing hole, and the guide vane shaft can axially move and rotate relative to the clamping sleeve. And the clamping stagnation fault of the guide vane shaft can be quickly maintained, the normal working state of the guide vane shaft can be recovered in time, and the problems of surface damage and deformation caused by direct contact between a traditional wrench, a pipe wrench and other tools and the guide vane shaft are avoided.
Owner:PIPECHINA SOUTH CHINA CO +1

A portable hydraulic wrench

ActiveCN224274871URealize preloadAchieve pre-looseningSpannersWrenchesHydraulic cylinderPipe wrench
This utility model discloses a portable hydraulic wrench, including a handle module, a wrench body module, and a slider support device. The handle module includes a handle shell, inside which are housed a first hydraulic cylinder, an oil reservoir, and a second hydraulic cylinder. A handle is rotatably mounted outside the handle shell. The piston rod of the first hydraulic cylinder extends out of the handle shell and connects to the handle. An oil outlet pipe connects the cylinder body of the second hydraulic cylinder to the cavity of the first hydraulic cylinder. The wrench body module includes a wrench shell, a crank-connecting rod mechanism, a rotating shaft, and a sleeve. The wrench shell is connected to the handle shell. The crank-connecting rod mechanism and the rotating shaft are located inside the wrench shell. The piston rod of the second hydraulic cylinder is connected to the rotating shaft via the crank-connecting rod mechanism. The sleeve is detachably mounted on the rotating shaft and extends out of the wrench shell. The slider support device is movably mounted on the handle shell for adjusting the height of the hydraulic wrench. This utility model enables bolt pre-tightening or pre-loosening and is easy to carry and store.
Owner:SOUTH CHINA UNIV OF TECH

Circumferential torque testing device for steel-plastic conversion pipe fitting

The utility model discloses a circumferential torque testing device for a steel-plastic conversion pipe fitting, which comprises a hydraulic pipe wrench, an adjustable telescopic force rod and a digital display torque wrench measuring mechanism, the adjustable telescopic force rod comprises a fixed force rod, a movable force rod and a fixed bolt, one end of the fixed force rod is fixedly connected with the hydraulic pipe wrench, and the other end of the fixed force rod is fixedly connected with the digital display torque wrench measuring mechanism. First through holes are uniformly formed in the fixed force rod and the movable force rod respectively, the fixed bolts are inserted into the first through holes to realize connection between the fixed force rod and the movable force rod, and the other end of the movable force rod is fixedly connected with the digital display torque wrench measuring mechanism; and the hydraulic pipe tongs clamp the metal pipe fitting of the steel-plastic conversion pipe fitting, and clamp and rotate to measure the torque force. According to the utility model, the force rod with the telescopic adjustable function is arranged, the measuring range is large, and the test requirements of different workpieces can be met.
Owner:LINHAI WEIXING NEW BUILDING MATERIALS CO LTD

A hopper for pouring concrete

This application relates to a hopper for hoisting concrete pouring, belonging to the field of concrete pouring technology. The hopper includes a hopper body and a steel pipe wrench hinged to the hopper body. A first drum is rotatably mounted on the side of the hopper body near the steel pipe wrench. A first connecting rope is wound on the first drum. The end of the first connecting rope away from the first drum is connected to the end of the steel pipe wrench away from the discharge port of the hopper body. The hopper body is equipped with an operation button and a braking assembly for driving the first drum to rotate and rewind the first connecting rope. The operation button is electrically connected to the braking assembly. This application has the effect of facilitating the timely closure of the hopper body's discharge port in emergency situations.
Owner:SHANGHAI CONSTRUCTION FIRST CONSTRUCTION (GROUP) CO LTD

Detachable electric oil pumping device

The utility model belongs to the technical field of oil conveying devices, and particularly relates to a detachable electric oil pumping device which comprises an electric gear pump, an oil suction pipe, an oil outlet pipe, a wrench connecting piece and an electric wrench, the oil suction pipe is connected with an oil inlet of the electric gear pump, and the oil outlet pipe is connected with an oil outlet of the electric gear pump. The wrench connecting piece is fixedly installed on a transmission shaft of the electric gear pump, and the electric wrench is rotationally connected with the wrench connecting piece. The electric wrench fixedly connected with the wrench connecting piece rotates to drive the transmission shaft of the electric gear pump to rotate, so that oil pumping operation on oil in the oil drum is achieved, the structure is simple and practical, the electric wrench is a portable rechargeable maintenance tool, the oil pumping station is not limited by the position of a power source, operation is convenient, labor is saved, and the service life is prolonged. Meanwhile, after oil pumping is completed, the electric wrench can be detached for other purposes, the manufacturing cost of the oil pumping device is greatly reduced, and the oil pumping device is worthy of application and popularization.
Owner:HEBEI XINDA IRON & STEEL GRP CO LTD

Hoisting fixture for bored pile reinforcement cage and hanging bar recovery system

The utility model relates to the technical field of fixtures and hanging bars, in particular to a drilling pile reinforcement cage hoisting fixture and hanging bar recovery system, which comprises a fixing block, a hoisting tool, a hanging bar lowering device and a positioning frame, the lower end of the fixing block is fixedly connected with a hoisting hook, the hoisting tool comprises four hoisting plates I and eight hoisting lugs, and the hoisting plates I and the hoisting lugs are fixedly connected with the positioning frame. The four first lifting plates are fixedly connected in a square shape, and the eight lifting lugs are fixedly connected to the upper ends and the lower ends of the first lifting plates. According to the utility model, the hanging bar III and the corresponding main reinforcement of the reinforcement cage are connected and fixed by the straight thread sleeve through the eight connecting plates I on the hanging bar lowering device, and the top of the hanging bar III is fixed on the hanging bar lowering device in a manner of the straight thread sleeve and the base plate; the top straight thread sleeve and the third hanging bars can be loosened immediately through a pipe wrench, then the third hanging bars are pulled out one by one, and therefore the purpose of recycling the third hanging bars is achieved, and the recycled third hanging bars can be reused after being adjusted and rectified properly.
Owner:CHINA FIRST HIGHWAY ENGINEERING CO LTD