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586 results about "Chisel" patented technology
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A chisel is a tool with a characteristically shaped cutting edge (such that wood chisels have lent part of their name to a particular grind) of blade on its end, for carving or cutting a hard material such as wood, stone, or metal by hand, struck with a mallet, or mechanical power. The handle and blade of some types of chisel are made of metal or of wood with a sharp edge in it.
Plastic card cage networking machine and use method thereof
The present invention discloses a plastic card mesh cage networking machine and its use method, belonging to the technical field of aerated concrete slab production lines. The present invention includes a networking machine base, a networking conveying trolley, and a lifting vehicle assembly. The networking machine base is provided with a mesh removal station and a first networking station; the networking conveying trolley is provided on the networking machine base and moves laterally on the networking machine base; the lifting vehicle assembly is used to place and transport the plastic card mesh cage; the lifting vehicle assembly is provided on the networking conveying trolley and moves vertically on the lifting vehicle assembly to drive the lifting of the plastic card mesh cage; the lifting vehicle assembly includes a mesh hanging assembly, which is used to engage and position the two mesh pieces of the plastic card mesh cage and push the plastic clips to move laterally, completing the networking operation after engaging with the steel chisel. The present invention can automatically adjust the mesh hanging position of the plastic card according to the mesh cage specifications, and the networking machine automatically hangs the mesh, thereby improving the production efficiency of plastic card mesh cage networking.
Owner:ANHUI KEDA IND CO LTD
Wall masonry method
The invention relates to a wall building method, which comprises the following steps of: treating a base layer, shoveling soil, concrete laitance and disintegrating slag on the ground of a to-be-built wall by using a shovel and a chisel, and washing by using water to remove floating dust; paying-off and positioning are conducted, elevation lines of 1000 mm are popped on structural concrete wall columns, and wall body lines, door opening lines and filler wall vertical side lines are popped on the building ground; a building block arrangement diagram is woven, a story pole is manufactured, and lintel or ring beam position lines and wall tie bar position lines are popped on the structural walls and columns; planting steel bars, namely planting the steel bars in wall columns corresponding to the positions of upper and lower layer beam plates, horizontal tie bars and ring beams at the positions of the constructional columns; arranging the building blocks, selecting a proper combined brick arranging method, and determining the number of layers of the bricks; before building, building blocks are firstly arranged at the plane position, the aerated concrete building blocks are arranged between two frame columns in a dry mode in the axis direction, and gaps are well adjusted; and pouring ring beams, lintels and constructional columns.
Owner:红蚂蚁装饰股份有限公司
Networking system of aerated plate reinforcing mesh cage
The invention discloses a networking system of aerated plate reinforcing mesh cages, and belongs to the technical field of aerated plate production. Comprising an automatic plastic clip mounting unit, a steel chisel transfer unit and a mesh clamping unit, the automatic plastic clamp mounting unit is used for achieving automatic assembly of plastic clamps and steel chisels, the steel chisel transferring unit is used for transporting the steel chisels, and the mesh clamping unit is used for clamping meshes to the plastic clamps. Full-automatic production of the plastic clamps, the steel chisels and the meshes from transportation to mesh arrangement to a to-be-welded state can be achieved, and the production efficiency of the reinforcing mesh cage is greatly improved.
Owner:ANHUI KEDA IND CO LTD
Thin-blade chisel system
A thin-blade chisel system, for separating an outer surface of an orthopedic implant and an inner surface of a bone from each other, includes a thin-blade chisel having a blade tip at a distal end portion in a longitudinal direction, and a hammering direction changing tool engaged with the thin-blade chisel to apply a force in an advancing direction of the blade tip. The thin-blade chisel includes a hammering blow-receiving part, preferably a through hole penetrating in a thickness direction, at a predetermined position on a proximal side closer to the surgeon. The hammering direction changing tool includes a hammering portion to be hammered, located at a proximal end portion, and a recess formed at a distal end portion, to be engaged with an inner circumferential surface of the through hole.
Owner:MEDMETALEX CO LTD
Lithium battery disassembling device
The invention provides a lithium battery disassembling device which comprises a moving mechanism and a disassembling mechanism connected with the moving mechanism, the disassembling mechanism comprises a supporting plate rotationally connected with the moving mechanism, a shielding assembly, a reciprocating assembly and a chiseling assembly, the shielding assembly and the reciprocating assembly are arranged on the supporting plate, the chiseling assembly is connected with the reciprocating assembly, the shielding assembly is arranged close to a battery cell, and the chiseling assembly is arranged close to the battery cell. The chiseling assembly comprises a protective shell connected with the reciprocating movement assembly, a straight chisel and an inclined chisel which are arranged in the protective shell, and a linkage structure for driving the inclined chisel to move in the direction away from the shielding assembly, and the reciprocating movement assembly is provided with a stroke recognition module used for recognizing the chiseling height of the straight chisel. The shielding assembly comprises a shielding plate and a driving structure for driving the shielding plate to move, the driving structure is electrically connected with the stroke recognition module, and the driving structure obtains the position, captured by the stroke recognition module, of the straight chisel so that the shielding plate can synchronously move along with the straight chisel, and the difficulty that a worker breaks the insulating coating layer subsequently is reduced.
Owner:SHANGHAI JINYU INTELLIGENT EQUIP MFG CO LTD
Slope stone blocking device convenient to transport
The utility model relates to the technical field of geological disaster prevention and control equipment, and discloses a slope stone blocking device convenient to transport, which comprises a stone blocking mechanism, a connecting mechanism, three first steel chisels and two second steel chisels, the connecting mechanism comprises a connecting rotating shaft, and the stone blocking mechanism comprises a stone blocking plate. A T-shaped sliding groove is rotationally formed in one side of the stone blocking plate through the connecting rotating shaft, and the T-shaped sliding groove and one side of the stone blocking plate are fixedly provided with a plurality of buffer springs in the vertical direction in an axial symmetry mode at the front end and the rear end of the connecting rotating shaft correspondingly; a plurality of buffering mechanisms are evenly installed on the front wall of the stone blocking plate in a matrix mode. According to the device, impact is absorbed in all directions through the multiple buffering mechanisms containing the spring dampers, rapid connection of the multiple single bodies is achieved through the T-shaped sliding blocks and the sliding grooves, a continuous protection belt in a self-defined shape is formed according to terrain requirements, and transportation and rapid deployment are facilitated through the design of rapid dismounting, mounting and fixing.
Owner:CHONGQING GEOLOGY ENG RECONNAISSANCE INST
Protective device for safety of mining machinery
The invention discloses a protective device for safety of mining machinery, and relates to the technical field of mining equipment, in particular to a protective device for safety of mining machinery, which comprises a base, a rotating frame, a protective component and a supporting component, and a plurality of iron chisels used for being inserted underground are fixedly mounted on the lower surface of the base; the lower end of the rotating frame is hinged to one end of the base; and through the combination of multi-stage damping and elastic buffering, the absorption capacity to large impact force is greatly improved. When the impact force continuously acts to cause the first piston plate to move to a set distance, the distance sensor transmits a signal to the control panel, and the control panel starts the electromagnet, so that the magnetic particles in the magnetorheological fluid are orderly arranged in a solid-like state, the position of the piston assembly is locked, excessive rotation of the rotating frame is avoided, and the service life of the rotating frame is prolonged. Compared with a locking block clamping structure of an existing device, the locking block clamping structure has higher fixing reliability, the situation that the structure loses efficacy due to continuous impact is effectively prevented, and safety of mining machinery is guaranteed.
Owner:LUZHOU IND TECHNICAL SCHOOL
Monitoring device suitable for surface cracks of strip mine slope
The utility model discloses a monitoring device suitable for open-pit mine slope surface cracks, and relates to the technical field of open-pit mine crack monitoring equipment. The device comprises a first steel chisel, a second steel chisel and a steel ruler, the first steel chisel and the second steel chisel are correspondingly installed on the two sides of an earth surface crack, a pulley and a steel ruler wheel are sequentially and rotationally installed on the second steel chisel from top to bottom, one end of the steel ruler is connected with the first steel chisel, and the other end of the steel ruler is wound on the steel ruler wheel after passing through the pulley. The steel ruler has the advantages that the structure is simple, the installation is convenient, the cost is low, an operator monitors the change of the scales of the steel ruler through the observation hole to record the change trend of a crack, the recording is simple and convenient, and the daily use requirement is met.
Owner:YAOJIE ELECTRIC COAL +1
Construction process of chiseling and cleaning equipment based on cylindrical bridge pier
The invention belongs to the technical field of construction cleaning, and particularly provides a construction process of chiseling cleaning equipment based on a cylindrical pier, and the construction process comprises the steps of pre-operation, transportation, installation of a suspension supporting mechanism, installation of a rail supporting mechanism, installation of a chiseling cleaning mechanism, mobile high-pressure cleaning, circulating high-pressure cleaning and equipment recovery. Compared with a traditional manual technology, the construction technology is automatic and efficient, large-area rapid pier scabbling operation can be carried out in an axial movement and rotation combined movement mode, the water jet elastic module can effectively adapt to the complex working condition of the scabbling face, the diameter of the steel belt can be adjusted according to different piers, the adaptability is wide, and the construction efficiency is high. And finally, the equipment is simple in structure and easy to operate, and has the potential of wide-range popularization. In addition, the scabbling and cleaning equipment can also be used as a platform to carry different equipment to carry out other operations on the surface of the cylindrical pier.
Owner:GUANGZHOU HIGHWAY KANCHA DESIGN CO LTD +2
Drill and method for manufacturing cut article
PCT designated stageWO2025204502A1Transportation and packagingTrepanning drillsRotational axisChisel
Provided is a drill that has excellent cutting blade durability and chip discharge. A cutting blade that is provided to a body of the drill has a chisel edge, a first blade, and a second blade. In plan view from a direction along the rotation axis, a boundary section where a boundary between the first blade and the second blade is located has a protruding shape toward the leading side in the rotation direction. The first blade has a first honing surface, the second blade has a second honing surface, and the chisel edge has a third honing surface. In plan view from a direction along the rotation axis, the width of the third honing surface decreases toward the outer periphery of the body, and the width of the first honing surface at the boundary section is smaller than the maximum value of the width of the first honing surface.
Owner:KYOCERA CORP
High and steep barren rock slope stepped earthing greening ecological regreening system and construction method thereof
The invention relates to a high and steep barren rock slope stepped earthing greening ecological regreening system and a construction method thereof. An original barren rock slope line is excavated and cut in a stepped mode to form a stepped slope and a stepped platform, and greening plants are planted on the stepped platform to form a stepped earthing greening system; the step type earthing greening system is composed of vine climbing plants planted on the prefabricated retaining wall arranged on the outer side of the step type platform, arbors planted in the planting grooves and herbaceous plants planted on backfill earthing. The prefabricated retaining wall is fixedly embedded on the outer side of the stepped platform through steel chisels, and a prefabricated concrete plate hanging bag is arranged on the outer side of the prefabricated retaining wall. According to the method, the stability of the side slope is improved, the large-area overall collapse phenomenon is avoided, the flushing effect of rainwater on backfill soil is reduced, the plant survival rate is increased, the work amount is saved, and rapid regreening of the side slope is achieved.
Owner:HANGZHOU JIANGRUN TECH LIMITED
Pile top critical surface concrete preset isolation device
The utility model belongs to the field of engineering construction, and particularly relates to a pile top critical surface concrete preset isolation device which comprises outer stirrups and inner stirrups, a plurality of fan-shaped steel plates are arranged between the outer stirrups and the inner stirrups, and the fan-shaped steel plates are fixedly connected with the outer stirrups and the inner stirrups through U-shaped buckles A; two semicircular plates are arranged in the inner stirrup, a U-shaped buckle B is fixedly connected to the middle of the outer arc edge of each semicircular plate, and a stop lever is fixed to the end of an opening of each U-shaped buckle B; a small hole is formed in the straight edge of the semicircular plate, a pull rope is fixed in the small hole, and the upper end of the pull rope is fixed to the portion, above the steel casing, of the transverse rod. By means of the device, drilling, steel chisel knocking vibration and other work can be avoided, the work intensity of workers is reduced, the construction period is effectively shortened, the construction cost is saved, the construction efficiency is improved, the top face of a dismantled pile head pile foundation is flat and smooth, subsequent pile foundation tests are facilitated, and later finishing work is omitted.
Owner:JINAN URBAN CONSTRUCTION GROUP CO LTD +2
Pry Bar Assembly
A pry bar assembly includes a plate that is elongated and has a first end, a second end, a first lateral edge, a second lateral edge, an upper surface and a lower surface. The plate includes a claw section, a chisel section and a middle section positioned therebetween. The claw section includes the first end and a rounded heel. The claw section includes a first portion and a second portion. The first portion is attached to the middle section and curves upwardly and away from the middle section in a semi-cylindrical shape to form the rounded heel. The second portion extends downwardly from the first portion. The chisel section is angled upwardly from the middle section. The upper surface has an elongated crest therein that is spaced from the first and second lateral edges and extends along a length of the middle section and into the chisel section.
Owner:DANCO LLC
Non-rotating chisel for a cutting tool
A cutting tool arrangement (500) for attachment to a tool holder (110) of a milling machine, comprising a cutting tip (510), a generally cylindrical shank (520) extending from the cutting tip (510), a spring clip (560) surrounding a body (522) of the shank (520) and having a contracted configuration and an expanded configuration, and a washer (590) with an installed configuration in which the washer (590) is arranged on a shoulder (528) of the shank (520), and a non-installed configuration in which the washer (590) surrounds the spring clip (560) and holds the spring clip (560) in the contracted configuration. At least one distal edge (566) of the spring clip (560) or proximal edge (592) of a bore (591) of the washer (590) has a chamfer or radius.
Owner:CATERPILLAR PAVING PROD INC
Chiseling-free mold product for concrete forming
ActiveCN223446603UAuxillary members of forms/shuttering/falseworksForming/stuttering elementsChiselArchitectural engineering
Owner:湖南扬星建筑科技有限公司
Method of manufacturing a tibial implant
A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
Owner:HOWMEDICA OSTEONICS CORP
Concrete crushing construction mechanism
ActiveCN222499941UImprove adsorption capacityImprove dust removal effectUsing liquid separation agentRoads maintainenceChiselElectric machine
The utility model discloses a concrete crushing construction mechanism which comprises a shell, transverse rods are fixedly connected to the left end and the right end of the shell, threaded rods are installed on the transverse rods, a rotating handle is fixedly connected to the upper ends of the threaded rods, a pressing disc is fixedly connected to the lower ends of the threaded rods, and a watering assembly is installed at the lower end of the inner side of the shell. A supporting frame is fixedly connected to the upper end of the inner side of the shell, an electric push rod is fixedly connected to the lower end of the supporting frame, a vibration motor is fixedly connected to the lower end of the electric push rod, a shock absorber is installed at the lower end of the vibration motor, and a crushing steel chisel is installed at the lower end of the shock absorber. According to the concrete crushing construction mechanism, raised dust generated during working is restrained through the water spraying device, personnel injury caused by splashing granular gravel can be effectively prevented, the crushing position can be conveniently positioned, and the influence of vibration on the device during crushing is reduced.
Owner:BEIJING JINJIYUAN CONCRETE PROD CO LTD
Lossless disassembling tool for automobile wheel edge
The utility model discloses an automobile wheel rim lossless dismounting tool, and relates to the technical field of automobile accessory dismounting, the automobile wheel rim lossless dismounting tool comprises a bottom plate, the top surface of the bottom plate is provided with a moving plate in a sliding manner, one side of the moving plate is provided with a mounting plate in a sliding manner, one side of the mounting plate is fixedly provided with a vertical rod, one side of the vertical rod is fixedly provided with a fixed disc, and the fixed disc is fixedly provided with a fixed shaft. A fixed part is fixedly arranged on the outer surface of the fixed disc, a movable rod is arranged in the fixed part in a sliding and penetrating mode, a toothed plate is fixedly arranged at one end of the movable rod, a chisel head is fixedly arranged at the end, away from the movable rod, of the toothed plate, and an inner toothed ring rotates on one side of the fixed disc, so that the inner toothed ring drives a first gear to rotate on the outer surface of a rotating shaft; and meanwhile, the toothed plate drives the movable rod to slide in the fixed part, so that the chisel head slowly moves towards the joint of the wheel side assembly flange and the hub flange and is separated through extrusion force, and the situation that internal parts are damaged due to vibration generated when the wheel side assembly is disassembled is avoided.
Owner:HEFEI WANXIANG QIANCHAO AUTO PARTS
gouging
1. Name of the designed product: chisel plane. 2. Use of the designed product: for chiseling wood. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.
Owner:HANGZHOU GREAT STAR IND CO LTD
Preparation method of autoclaved aerated concrete plate with built-in insulation board
PendingCN119550471ARealize integrated productionIncrease productivityAuxillary shaping apparatusThermal insulationChisel
The invention discloses a preparation method of an autoclaved aerated concrete plate with a built-in insulation board, and belongs to the technical field of production of aerated concrete plates. The preparation method comprises the following steps: placing the support frame; the concentric-square-shaped frame is placed on the supporting frame; the steel chisel mounting cross beam is mounted on the concentric-square-shaped frame; mounting a steel chisel on the steel chisel mounting cross beam; the mesh mounting piece is mounted on the steel chisel; a connecting piece is installed between the two reinforcing mesh pieces of the reinforcing mesh set; the reinforcing mesh is hung on the mesh mounting piece; the heat preservation plate is installed between the two steel bar meshes; injecting the slurry into a mold; feeding the steel chisel, the reinforcing mesh and the insulation board into a mold of the grouting material, and pre-curing to form a green body; pulling out the steel chisel from the mesh mounting piece, and demolding; the green body is cut and then subjected to steam curing; after steam curing is completed, the autoclaved aerated concrete plate is prepared. According to the invention, integrated production of the whole sandwich thermal insulation composite board can be realized, and the production efficiency of the composite wallboard is improved.
Owner:SHANDONG UNIV +1
A drill bit that prevents delamination, detachment, and burr defects.
This invention discloses a drill bit for preventing delamination, detachment, and burr defects, belonging to the field of cutting tool technology. The invention mainly consists of a shank, a drill core, and an outer portion of the drill bit; the drill core is higher than the outer portion; the end structure of the drill bit is flower-shaped. The drill core has two axially symmetrically distributed cutting sections. The outer portion of the drill bit mainly consists of a second rake face, a second primary flank face, a second secondary flank face, and a third secondary flank face. The drill bit employs a double primary cutting edge. The drill core uses a small-angle peak and a short chisel edge to improve its self-centering and chip removal functions, reducing axial cutting force; the outer portion of the drill bit uses a negative peak, forming a concave structure, which generates a centripetal radial cutting force during machining. Through the cooperation between the first primary cutting edge of the drill core and the second primary cutting edge of the outer portion of the drill bit, the axial cutting force is reduced, cutting away material containing defects from the hole wall instead of pushing it towards the hole wall, effectively suppressing the formation of delamination, detachment, and burr defects.
Owner:BEIJING INST OF TECH
Drop hammer impact equivalent test device for reproducing superspeed chipping damage effect
The invention relates to a drop hammer impact equivalent test device capable of reproducing an ultra-high-speed chipping damage effect. The problem that a low-cost test device for chipping damage effect and protection technology research is lacked at present is solved. Comprising an impact test platform, an overall frame, a guide rail, a multifunctional drop hammer, a heating device, a hammer grabbing and disengaging device and a lifting device, the overall frame is fixed to the impact test platform, the guide rail is vertically installed on the overall frame, the lifting device is installed on the top of the overall frame, and the multifunctional drop hammer is detachably connected to the lower portion of the lifting device and matched with the guide rail. The heating device is mounted on the multifunctional drop hammer, the multifunctional drop hammer is provided with a positive impact test hammer head and an inclined impact test hammer head, the slide rail sample is fixed on the impact test platform during a positive impact test, and the slide rail sample is obliquely fixed between the impact test platform and the integral frame during an inclined impact test. According to the method, the chipping damage effect can be effectively reproduced, and the method has important engineering value for material damage mechanism and protection technology research.
Owner:CHINA NAT INST OF TEST & TESTING
Drill
To provide a drill which enables reduction of stress concentration caused by chips generated by a thinning blade to reduce cutting resistance and secure strength near a rotation center part (a chisel part) of the drill.SOLUTION: A drill 10 includes a body 1 which extends in an axial direction, centered on a center axis O. The body 1 has: chip discharge grooves 4 which are open on an apical surface 3 and an outer peripheral surface 8 of the body 1 and extend from the apical surface 3 to the rear end side; recessed thinnings 5 each of which is disposed at a tip part of the body 1 and connected to the chip discharge groove 4 and the apical surface 3; and cutting blades 7 disposed at the tip part of the body 1. The cutting blade 7 has a thinning blade 70 disposed at a radial inner end of the cutting blade 7. The thinning blade 70 has a recessed curve blade 71 which continues into a ridge line 6, connecting the thinning 5 with the apical surface 3, and has a curved shape recessed to the opposite side of a drill rotation direction T of a circle around the center axis O.SELECTED DRAWING: Figure 3
Owner:MITSUBISHI MATERIALS CORP
Punching limiting tool for soil radon concentration detection
The utility model discloses a soil radon concentration detection punching limiting tool which comprises a steel chisel body, a plurality of height marking lines are arranged on the outer side wall of the steel chisel body, a holding piece is arranged at the top of the steel chisel body through a fastening device, and the fastening device comprises a fastening threaded rod arranged on the holding piece. A threaded hole in threaded connection with the fastening threaded rod is formed in the top end of the steel chisel body, and a locking assembly is further arranged between the fastening threaded rod and the threaded hole. On one hand, the punching depth can be conveniently controlled, so that the punching depth meets the standard requirement; on the other hand, the steel chisel body can be easily inserted into soil through the holding piece, so that the punching effect is achieved; and after punching to the required depth, the steel chisel main body is pulled out by holding the holding piece and rotating upwards, so that punching and pulling-out are easier and faster, detection data are more reliable and accurate, and the problems that the soil radon concentration detection punched hole is difficult to insert and pull out, the punching depth is difficult to determine, and the detection efficiency and accuracy are influenced are solved.
Owner:GUANGZHOU GUANJIAN MATERIAL TESTING CO LTD
Partially Porous Tibial Component
A method for removing a stem portion of an orthopedic implant from a bone comprises exposing an implanted orthopedic implant having a body portion, a stem portion interconnected to the body and a porous metal section forming an interconnection between the body and the stem portion. A cutting tool is mounted on a holder connected to an exposed surface of the orthopedic implant. The porous section is aligned with the cutting tool mounted on the holder. The entire porous section is cut by moving the cutting tool therethrough in a direction transverse to the stem portion axis. The implant body portion is then removed and then the stem portion is removed from the bone. The cutting tool may be a saw or chisel which may be mounted on a guide fixed to the body portion.
Owner:HOWMEDICA OSTEONICS CORP
Base for accommodating a chisel holder
The invention relates to a base (10) for accommodating a chisel holder (30), comprising a main body (13) which has a holder seat (14) for accommodating the chisel holder (30), the holder seat (14) having: a socket (18); at least one front supporting surface (15.1, 15.2), which is located at least partially in front of and / or to the side of the socket (18); and at least one rear supporting surface (16.1, 16.2), which is located at least partially behind the socket (18). In order to ensure that a chisel holder (30) mounted in the base (10) remains securely fastened even under exceptionally high loads, according to the invention, the main body (13) has two clamping surfaces (18.5, 18.6) of a rear overload support section (18.4) in the insertion area that leads into the socket (18), each clamping surface (18.5, 18.6) facing a side of the main body (13).
Owner:WIRTGEN GMBH
Coating drilling tool and machining method
The invention belongs to the technical field of drilling tools, and discloses a coating drilling tool and a machining method.The coating drilling tool comprises a drill tip part, the drill tip part comprises a front tool face and two tool end faces, the two tool end faces intersect to form a chisel edge, each tool end face comprises a first rear tool face, and the first rear tool faces intersect with the front tool face to form a main cutting edge; the drill tip part further comprises a first machining area, the first machining area is arranged on the front tool face and intersects with the main cutting edge, a first micro-texture is arranged in the first machining area, and / or the drill tip part further comprises a second machining area, the second machining area is arranged on the first rear tool face and intersects with the chisel edge and the main cutting edge, and a second micro-texture is arranged in the second machining area. A second microstructure is arranged in the second machining area. The first microtextures and the second microtextures can improve the surface roughness of the front tool face and the first rear tool face, improve the coating binding force, slow down tool abrasion, improve the cutting performance and reduce abrasive particle abrasion and bonding abrasion between interfaces.
Owner:GUANGDONG DTECH TECH CO LTD
Quick change steel chisel
This application discloses a quick-change steel chisel, relating to the field of steel chisel technology. The application includes a chisel head, one end of which is fixed to a support block. A connector post is fixed to the end of the support block away from the chisel head. A handle is provided at the end of the connector post away from the support block. A connecting post is fixed to the end of the handle near the connector post. A connector groove is formed on the connecting post, and the connector post is slidably disposed within the connector groove. A fixing structure is provided between the connector post and the connecting post. This fixing structure allows for quick fixing of the chisel head and handle, and disassembly is relatively convenient, enabling rapid chisel head replacement, significantly improving work efficiency. The connection is also effective, preventing easy loosening or detachment. Furthermore, the operation is simple, requiring no additional tools to replace the chisel head.
Owner:WENZHOU FANGCHENG TOOLS CO LTD
Chisel hammer
A power tool adapted to impart axial impacts to a tool bit includes a housing having a motor housing portion and a handle portion extending transversely from the motor housing portion, an electric motor supported in the motor housing portion and defining a motor axis, a non-rotatable barrel extending from the motor housing portion and defining a barrel axis parallel to the motor axis, a reciprocation drive assembly coupled to the electric motor and configured to convert torque from the electric motor to reciprocating motion of a piston received within the barrel for reciprocation therein along the barrel axis, a striker received within the barrel for reciprocation in response to the reciprocation of the piston, and an anvil at least partially received within the barrel and positioned between the striker and tool bit.The anvil communicates axial impacts to the tool bit in response to reciprocation of the striker.
Owner:MILWAUKEE ELECTRIC TOOL CORP
Temporary protective barrier for prefabricated arc-shaped stand plate of comprehensive stadium
The utility model belongs to the technical field of temporary protective guards for safety construction, and particularly discloses a temporary protective barrier for a prefabricated arc-shaped stand plate of a comprehensive stadium, which comprises the arc-shaped prefabricated stand plate and a steel plate, the arc-shaped prefabricated stand plate is provided with grouting holes, the side edge of the arc-shaped prefabricated stand plate is provided with stand plate lifting lugs, and the steel plate is arranged on the arc-shaped prefabricated stand plate. A derivation plate is arranged on the side, away from the stand plate lifting lugs, of the arc-shaped prefabricated stand plate, stand plate pin rod connecting embedded parts are arranged on the derivation plate, steel chisels matched with the grouting holes are arranged below the steel plate, a plurality of steel pipe stand columns are arranged above the steel plate, each steel pipe stand column is provided with a lifting lug, and therefore a simple and temporary protection stand column is formed. Protective steel wire ropes are connected between the multiple steel pipe stand columns, the protective steel wire ropes are connected with the hanging lugs, the protective steel wire ropes are wound on the hanging lugs of the stand columns by at least one circle, the protective steel wire ropes form an annular continuous protective barrier, and the effect of temporary protection in the construction process of the prefabricated arc-shaped stand plate of the comprehensive stadium is achieved.
Owner:CHINA CONSTR EIGHT ENG DIV CORP LTD