57 results about "Chisel" patented technology

1. The name of the design product: light hammer (26). 2. The use of the design product: the design product is used for hammer, chisel, drilling and other operations. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The application relates to the field of EMU (Electric Multiple Unit) operation of railway inter-route transportation, and particularly relates to a multi-purpose EMU chisel rod. The multi-purpose EMU chisel rod comprises a supporting rod and a working head fixedly installed on the supporting rod, the working head comprises a vertical middle rod and horizontal rods and barbed rods arranged on both sides of the middle rod respectively, the upper end of the middle rod is a pointed head, one end of the horizontal rod is fixedly connected to the middle part of the middle rod, and the horizontal rod is arranged perpendicularly to the supporting rod, one end of the barbed rod is fixedly connected to the middle rod and located above the horizontal rod, the barbed rod is arranged obliquely from top to bottom from the connecting part with the middle rod, and the free end of the barbed rod is a pointed head structure. The multi-purpose EMU chisel rod provided by the application has a good foreign matter removing effect.

The application provides a pneumatic impact quick-disconnecting fixing bolt breaking method and a breaking device thereof, and comprises the following steps: determining a target door body to be broken, and chiseling the four corners of the door frame outside the target door body; using a crowbar to flip the vertical door side strips on the left and right sides of the door frame; using a bolt detector to determine the positions of the fixing bolts in the door frame; using a pneumatic impact gun and a chisel to break the concrete near each fixing bolt to form a bolt breaking gap; replacing a crescent shovel working head to quickly disconnect each fixing bolt through each bolt breaking gap; and using a door body traction pulling device to pull out the target door body as a whole to complete the breaking. The application has no power limitation, further shortens the time required for breaking doors and windows, greatly improves the rescue efficiency, and is safe and reliable without power supply and with small action amplitude, and is suitable for special places such as explosion-proof, high-rise, narrow space and the like.

The utility model discloses a kind of super pry-proof lock boxes, comprising: door leaf and lockset, lockset is installed at the frame of door leaf, the lockset includes lock box main body and right-angle edge covering steel plate, right-angle edge covering steel plate completely covers lock box main body front surface, and one end of right-angle edge covering steel plate is butt-jointed with the frame of door leaf, and the side of lock box main body close to door leaf is wrapped up.The utility model is made of right-angle edge covering steel plate of high-strength steel material completely covers lock box main body front surface, and is tightly butt-jointed with door leaf frame, and the side of lock box main body close to door leaf is wrapped up, the structure is formed after the panel of door leaf is destroyed, forms firm physical barrier, effectively blocks the intrusion of pry bar, chisel and other tools outside, prevents attacker direct contact and destroys lock box main body inside lockset core component, such as pull block, motor, transmission mechanism etc.

The utility model discloses a kind of white pulp soil layered subsoiling fertilization improvement machines, including frame, electric fertilization device, compactor, layered fertilization shovel and subsoiling three-tooth hook. The subsoiling three-tooth hook is installed below front beam, including front tooth hook, middle tooth hook and rear tooth hook. The layered fertilization shovel is installed below rear beam, including wing subsoiling shovel, plane chisel type subsoiling shovel, tillage layer fertilization pipe and white pulp layer fertilization pipe, and the electric fertilization device is located above longitudinal connecting beam;The compactor is fixedly connected to rear of rear beam, for carrying out soil covering compaction operation. The white pulp soil layered subsoiling fertilization improvement machine of the application is simple in structure, can complete subsoiling and layered fertilization integrated operation, subsoiling improves soil while carrying out layered fertilization, and can effectively fertilize and improve white pulp soil.

1. Name of the product in this design: Impact Chisel. 2. Purpose of this design: A chisel for impact-induced wire breakage. 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.

1. The name of the design product: engraving chisel (arc-shaped handle). 2. The use of the design product: the design product is used for engraving tools. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. Name of the product in this design: Stone chisel (large handle). 2. Purpose of this design: for the processing and treatment of stone. 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.

This invention relates to the field of construction equipment technology, specifically to a chiseling fixture, comprising a main shaft with mounting components at both ends. A transport device is connected to one mounting component, and a drive component is connected to the other. A transmission component is fitted to the output end of the drive component, and a rotating seat is rotatably mounted on the transmission component. Several radial chiseling components are mounted on the rotating seat. Each radial chiseling component includes a chisel head and a chisel head range adjustment mechanism. The chisel head range adjustment mechanism allows the chisel head to automatically adjust its chiseling radius according to the rotational speed of the rotating seat. The chisel head range adjustment mechanism includes a rotating shaft with a chisel head support mounted on it, which can rotate around the rotating shaft. This invention solves the problems of existing handheld chiseling equipment being limited by power output, having low efficiency, relying on manual operation, and easily leading to excessive labor intensity during prolonged operation.

This utility model belongs to the field of hydraulic breaker technology and relates to a hydraulic breaker core for preventing mud and water backflow. It includes a housing, a chisel, a bushing, and a protective cover. The housing has a front opening, and the bushing is fixedly installed at the front opening. The chisel includes a working end and an assembly end, with the assembly end sliding axially through and installed within the bushing. The protective cover is umbrella-shaped, with a through hole at its top. The protective cover is fitted onto the chisel through the through hole and is located near the assembly end of the chisel. The protective cover can move synchronously with the chisel axially. By providing an umbrella-shaped protective cover on the chisel, this utility model alters the flow path of mud and water as they flow down the surface of the chisel, forcing them to deflect radially outward and preventing them from entering the housing.

This invention discloses an integrated slag removal device for the electric furnace front bed in tin smelting, comprising: a track, a platform, a robotic arm, a pneumatic pick, and a slag removal assembly; the platform is slidably connected to the top of the track; the robotic arm is mounted on the top of the platform; the mounting end of the pneumatic pick is connected to the robotic arm, and the working end is equipped with a pick's chisel; the mounting end of the slag removal assembly is connected to the robotic arm, and the working end is equipped with a slag-removing claw capable of opening and closing. The slag removal device of this invention integrates slag removal and slag scraping, making slag removal convenient and highly efficient.

The utility model belongs to sampling device technical field especially relates to an intertidal zone sampling device, include: mounting bracket, mounting bracket end part installs elastic arc piece, and mounting bracket and elastic arc piece are fixedly connected with the net bag together, be used for the biological body is supported, the mounting bracket upper end fixed support plate, and support plate upper end detachably installs output pipe no. 2, one end of output pipe no. 2 is connected with the power source for flushing biological body, the other end of output pipe no. 2 is connected output pipe no. 1 through pressure control valve, output pipe no. 1 end part detachably installs connector, the connector outside detachably installs multiple universal conveying pipes, and multiple universal conveying pipes detachably install shower nozzle on, are used for flushing biological body. The utility model has more efficient than hammer chisel, the small rock damage, and can collect the small individual in the fragment, and compared with hammer chisel, the position more difficult to force and touch is more convenient.

1. The name of the design product: handle of stonecutter chisel. 2. The use of the design product: handle of stonecutter chisel. 3. The design points of the design product: in shape. 4. The picture or photo that can best show the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

This invention discloses a high-life, low-cost, large-size round steel bar for hydraulic breaker chisels and its manufacturing method. The chemical composition of the round steel bar, by mass percentage, is: C: 0.32~0.42%, Si: 0.5~1.4%, Mn: 0.80~1.50%, P: ≤0.025%, S: ≤0.015%, Cr: 1.00~1.40%, Cu: ≤0.25%, Mo: 0.05~0.10%, Nb: 0.02~0.04%, Al: 0.015~0.035%, H: ≤0.0002%, with the balance being Fe and unavoidable impurities. The diameter of the round steel bar ranges from 150 to 250 mm. The manufacturing method includes converter / electric furnace smelting, LF refining, RH / VD degassing, continuous casting, billet surface treatment, round steel rolling, and cooling processes, each with precise process parameter control. The round steel prepared by this invention has good hardenability and excellent strength-toughness matching. The service life of the drill rod made from it is 2-3 times longer than that of 42CrMo, and the amount of Mo added is significantly reduced, effectively controlling production costs. At the same time, it improves the atmospheric corrosion resistance of the drill rod, making it suitable for large-scale hydraulic breakers in mining, building demolition and other fields.

1. Name of the product in this design: Chiseling Robot. 2. Application of this design: This design is used for a chipping robot. 3. The key design features of this product are the shapes, patterns, and their combinations shown in each view. 4. The image or photograph that best illustrates the design's key points: a 3D model.

1. The name of the design product: hard alloy mortar chisel. 2. The use of the design product: hard alloy mortar chisel used in pneumatic tools for cleaning mortar and mortar joint. 3. The design points of the design product: in shape. 4. The picture or photo best indicating the design points: perspective view 1.

A chisel includes a working section, a shaft section, and a striking surface. A longitudinal axis runs through the working section, the shaft section, and the striking surface. In a cross section of the working section running transversely to the longitudinal axis, a first structural core region has a first core hardness which is substantially less than a first external hardness in a first external region outside of the first structural core region within the cross section of the working section.

In the drill bit of the present invention, the cutting edge (7) has: a chisel edge grinding edge (70) disposed in the radial inner end of the cutting edge (7); and a main cutting edge (71) disposed in the radial outer side of the chisel edge grinding edge (70) and connected to the edge (12) via the outer peripheral corner (15). The main cutting edge (71) and the edge (12) have a cutting edge grinding with a convex curve cross section perpendicular to each edge portion. The cutting edge grinding curvature radius in the edge (12) at a position within 1.5 mm from the outer peripheral corner (15) toward the rear end side is 25 μm or more and 80 μm or less, and is smaller than the cutting edge grinding curvature radius of the radial outer end of the main cutting edge (71) connected to the outer peripheral corner (15).

This utility model discloses a hydraulic breaker, comprising an upper cylinder, a middle cylinder, a lower cylinder, a piston, and a chisel. The upper end of the middle cylinder is connected to the lower end of the upper cylinder; the lower cylinder is connected to the lower end of the middle cylinder; the piston passes through the upper, middle, and lower cylinders and can move axially up and down; the upper end of the piston is located in the upper cylinder and forms a sealed air chamber with the inner wall of the upper cylinder, the air chamber being filled with high-pressure gas; the middle part of the piston is housed in the middle cylinder and forms a sealed hydraulic oil chamber with the inner wall of the middle cylinder; the chisel is housed in the lower cylinder; wherein, the middle cylinder is provided with a control unit connected to the hydraulic oil chamber, and an oil inlet chamber and an oil outlet chamber selectively connected to the control unit, the control unit being used to control the entry and exit of hydraulic oil into the hydraulic oil chamber to drive the piston to move up and down. This hydraulic breaker can more accurately control the impact force, and has a simple structure and higher reliability.

The utility model relates to medical instrument technical field, specifically disclose a kind of special depth-limiting bone chisel of endoscope channel, comprising: hand-held part;Knocking part;And bone chisel main part;Bone chisel main part one end is bone chisel head, and the other end is set in hand-held part, and the outside of the connection with hand-held part is equipped with the adjusting part of cylindrical shape, the adjusting part outside is sleeved with depth-limiting sleeve;Depth-limiting sleeve, depth-limiting sleeve is connected with the adjusting part outer thread by internal thread, and depth-limiting sleeve is close to bone chisel head end and is equipped with annular groove, and bone chisel head is embedded in annular groove by annular groove sleeve connection depth-limiting shell;Depth-limiting shell, the inside of depth-limiting shell is equipped with the groove that can pass through bone chisel main part, and it is equipped with the outer expansion baffle near bone chisel head, and it is equipped with the convex in annular groove away from bone chisel head end. The special depth-limiting bone chisel of endoscope channel is through the characteristics such as adjustable chisel depth, prevent the protection mechanism of chisel and go deep, easy to operate and durable stable structure, significantly improve the deficiency of traditional depth-limiting bone chisel.

This utility model discloses a side-discharge drill bit alloy and its drill bit structure. The side-discharge drill bit alloy includes a straight drill bit alloy body with two cutting edges and one chisel edge. Side-guided chip grooves are provided on both end faces of the straight drill bit alloy body, and the side-guided chip grooves are inclined from the head end to the tail end of the straight drill bit alloy body. The drill bit structure includes a drill rod with a spiral chip guide groove and the aforementioned straight drill bit alloy body. The structure of this utility model is reasonable. The side-guided chip grooves on the side of the straight drill bit alloy body can improve the sharpness of the cutting edges, which is beneficial to improving drilling ease, improving chip removal and guiding performance, reducing drilling resistance, reducing wear, and extending the service life of the overall structure. It is stable and reliable in use. This side-discharge drill bit alloy drill bit structure is beneficial to improving the chip removal and guiding performance of the overall drill bit structure, reducing wear, extending service life, and increasing drilling efficiency.

The utility model discloses a piston anti-fouling, anti-impurity and anti-garland structure for a hydraulic breaking hammer, and relates to the technical field of hydraulic breaking hammers. A whole circle of axial protrusions are arranged on the outer circle of the striking end face of the piston to form a retaining wall, and the protrusions are higher than a striking face and used for surrounding the striking face when the piston hammers a drill rod, enabling splash generated by collision to splash towards the drill rod, preventing the splash generated by collision from splashing towards the cylindrical face of the piston and reducing attachment of impurities on the cylindrical face of the piston. The middle cylinder is provided with an oil supply channel and an oil return channel, and the inner wall of the middle cylinder is provided with an oil supply oil groove, a spiral oil groove, an injection oil groove, a step and an oil return oil groove; pressure difference exists between the injection oil groove and the oil return oil groove, the flow speed of hydraulic oil is increased to form jet flow when the hydraulic oil passes through a narrow slit formed by the step and the piston, and the jet flow is used for flushing the piston surface when the piston moves. By optimizing the striking end face structure of the piston and the oil groove design of the inner wall of the middle cylinder, impurities attached to the piston are effectively reduced, the cylinder scoring risk is reduced, meanwhile, the cleanliness of hydraulic oil is improved, the service life of equipment is prolonged, and efficient and stable operation of the hydraulic breaking hammer is guaranteed.

The utility model relates to a kind of gouging joints for engineering machinery, comprising: connecting piece, the connecting piece is detachably installed on the mechanical arm of the engineering machinery;Fixed part, the connecting piece is fixedly connected with the fixed part;Gouging structure, the gouging structure is adjustably installed on the fixed part, the gouging structure is power connected with the mechanical arm;Locking structure, the locking structure is used to fix the angle of the gouging structure, to adapt to different working conditions.The utility model solves the technical problems that existing gouging equipment is inefficient, uneven in quality and has increased safety risks when dealing with complex or irregular construction surfaces.

This utility model discloses a rock drilling rig support, belonging to the technical field of coal mine roadway drilling machinery. It includes a left clamping block, a right clamping block, and a bearing seat, with the bearing seat located between the left and right clamping blocks. The left and right clamping blocks are fitted together. The bearing seat includes an outer bearing sleeve, inside which is an inner nesting element. The inner nesting element includes a fixed sleeve, which is connected to an elastic sleeve. An elastic component connects the fixed sleeve and the elastic sleeve. This utility model can reduce the wear cycle and minimize the impact of wear on the accuracy of rock drilling operations.

This utility model relates to the technical field of paleontological fossil excavation tools, specifically to a handheld excavation tool for collecting fossils in layered rocks. The handheld excavation tool includes at least a geological hammer, a steel chisel, and a steel crowbar integrated tool. The geological hammer includes a hammerhead body and a handle, with the hammerhead body located at one end of the handle. The bottom of the hammerhead body is a circular hammerhead, and the top is a wedge-shaped edge. The steel chisel includes a chisel body, with a chisel head at the upper end and a pointed tip at the lower end. The chisel body has anti-slip textures near the chisel head. The steel crowbar integrated tool includes a steel crowbar body, a crowbar rod, and an anti-slip handguard. The steel crowbar body is threadedly connected to the crowbar rod, and the crowbar rod has an anti-slip handguard inside its hollow end. This utility model's integrated tool of a geological hammer, steel chisel, and steel crowbar not only possesses high integration and versatility in function but also excels in durability, safety, and convenience, significantly improving the efficiency and safety of fossil collection and excavation work in layered rocks in the field.

A drill (1) is provided with a thinning edge (7), a gash portion (8), a coolant passage, and an oil hole (12). The thinning edge (7) is provided at a leading end portion of a body (3), and extends toward a chisel portion (9) from an inner end (51) of a cutting edge (5). A ridge line between the gash portion (8) and the flank (6) extends in a circular arc shape from an inner end of the thinning edge (7) toward an outer peripheral surface (31) of the body (3). The coolant passage is provided inside a shank and the body (3), and extends from a rear end portion of the shank toward the leading end portion of the body (3). The oil hole (12) is provided at a gash face (81) of the gash portion (8) and is an outlet of the coolant passage.

A power tool that includes a housing including a motor housing, a handle extending from the motor housing, and a battery receptacle, a motor supported in the motor housing and defining a motor axis, and a non-rotatable barrel coupled to the motor housing and extending from the motor housing and defining a barrel axis. The barrel axis and the motor axis are parallel and spaced apart from one another. The power tool also includes a reciprocation drive assembly coupled to the motor and configured to convert torque from the motor to reciprocating motion of a piston that is at least partially received within the non-rotatable barrel for reciprocation therein along the barrel axis, a striker received within the barrel for reciprocation in response to reciprocation of the piston. and an anvil at least partially received within the barrel and positioned between the striker and the tool bit.

The utility model relates to geological exploration tool technical field discloses a geological exploration hammer, including the hammer body, the bottom fixedly connected with hollow shell of hammer body, the outer wall front and back of hollow shell all are fixedly connected with fixed plate, the bottom left and right sides of fixed plate all are screw -threaded connection has screw, the right side fixedly connected with the broken head of hammer body, the left side fixedly connected with the chisel head of hammer body, the inner wall rotationally connected with screw rod no.