69results about How to "Does not affect cleaning" patented technology

The invention discloses a remote monitoring system and a detection method for particulate depositing quantity. The system comprises a plurality of particulate deposition detecting terminals and a cloud computing server, wherein each particulate deposition detecting terminal comprises a main housing, the top of each main housing is provided with a particulate depositing groove exposed in a particulate depositing environment, a plurality of luminous parts are arranged around each particulate depositing groove, the bottom of each particulate depositing groove is provided with a fresnel lens, a photoelectric sensor is arranged under the fresnel lens in each main housing, each photoelectric sensor is in communicating connection with a microprocessor, each microprocessor is in communicating connection with a wireless communication component, each particulate depositing groove collects particulates, the luminous parts irradiate the particulates in the particulate depositing grooves, the light is collected onto the photoelectric sensors through the fresnel lenses arranged at the bottom of the grooves, is converted into the weight of the deposited particulates according to the influence of the deposited particulates to the light strength change, and is transmitted to a cloud computing center by a wireless module, a plurality of monitoring points can be wirelessly and automatically monitored, and the cloud computing intelligent information processing can be adopted, so that the flexibility, the reliability and the convenience for the monitoring of the particulate depositing quantity can be improved.

The invention discloses a rolling brush structure with spiral blades. The rolling brush structure comprises a rolling brush body, hairs spirally arranged on the rolling brush body, a left connecting part and a right connecting part, wherein the left connecting part and the right connecting part are arranged at the two ends of the rolling brush body and connected with a suction chassis; the spiral blades are arranged on the rolling brush body; and the external ends of the blades are higher than the external ends of the hairs. The rolling brush structure has the advantages and positive effects that the spiral blades are respectively arranged between every two adjacent rows of hairs on the rolling brush structure, and when the rolling brush body rotates, the blades are rotated together, thus, certain axial flowing is brought to airflow when the spiral blades rotate, dust is blown toward the direction of a suction inlet, and the dust collecting efficiency of a dust collector is improved. Simultaneously, the external ends of the blades are higher than the external ends of the hairs, so that the hairs can be in contact with the ground or a carpet and can clean the ground or the carpet without being influenced, and the resistance occurred along with the rotating of the rolling brush body cannot be increased.

The invention relates to a cleaning derive, in particular to a cleaning device inside a solar energy heat collection pipe. The cleaning device inside the solar energy heat collection pipe is comprehensive in cleaning, can place the heat collection pipe well without affecting cleaning. According to the technical scheme, the cleaning device inside the solar energy heat collection pipe comprises a frame body, a handle, a rubber sleeve, limiting blocks, rubber plates, a motor, a rubber rotating rod and the like. The handle is installed on the middle part of the right side face outside the frame body, the rubber sleeve is arranged on the handle, the limiting blocks are installed on the upper portions of the left and right side faces in the frame body, and the rubber plates are installed on thebottom portions of the limiting blocks and the left and right side faces in the frame body. According to the cleaning device inside the solar energy heat collection pipe, the heat collection pipe canbe placed steadily through a support device without affecting cleaning; water is not needed to be continuously poured into the heat collection pipe for cleaning by people through a water injection device, convenience and swiftness are achieved, comprehensive cleaning is achieved, the heat collection pipe can be placed well, and the effect of cleaning is not affected.

The invention provides a portable medical safe transfer trolley for intensive care. The portable medical safe transfer trolley comprises a base plate, a trolley body, a trunk plate, an upper limb plate, a lower limb plate, a trolley head baffle, a trolley tail baffle, a cleaning device, an oxygen delivery device and traveling wheels, wherein the trolley body is fixed to the upper surface of the base plate, the trunk plate is arranged on the upper surface of the trolley body and is of a hollow structure, the drawable upper limb plate is arranged at the left side of the trunk plate, the drawable lower limb plate is arranged at the right side of the trunk plate, the trolley head baffle is arranged on the upper limb plate, the trolley tail baffle is arranged on the lower limb plate, the cleaning device and the oxygen delivery device are arranged in the trolley body, and the multiple traveling wheels are evenly distributed on the lower surface of the base plate. The portable medical safe transfer trolley is simple in structure and convenient to use. The upper limb plate and the lower limb plate can be pulled out or not as needed so as to facilitate carrying on the premise that using is not affected. Relevant space for nursing is arranged in the trolley body, arrangement is reasonable, space is saved, nursing is not affected during transfer of patients, and pains of patients and working difficulty of medical staff are reduced.

The invention discloses a building cleaning vehicle capable of detecting ground protrusions and smoothing the ground protrusions. The building cleaning vehicle includes a main body; a detection cavitywith a downward opening is formed in the lower end surface of the main body; a positioning plate is fixedly arranged on the left wall in the detection cavity; a push plate capable of sliding up and down is arranged in the detection cavity; the lower end face of the pushing plate can make contact with the upper end face of the positioning plate; a wheel shaft is fixedly arranged on a part, locatedon the right side of the positioning plate, of the lower end face of the pushing plate and; the lower end of the wheel shaft extends downwards and is rotationally provided with a detection wheel through a rotating pin. According to the invention, the ground protrusions are automatically detected and ground to be flat; before the equipment does not detect the ground protrusions, the cleaning vehicle can continuously and stably remove dust on the ground and clean stains on the ground, and when the ground protrusions are automatically detected, a bulge grinding mechanism is automatically startedto grind the ground protrusions, so that the sweeping and dust removing processes are not influenced while the flatness of the building ground is ensured.

The invention discloses a mechanical defoaming device applied to a stirred tank reactor and belongs to the technical field of chemical machinery. The mechanical defoaming device comprises a hub and a paddle, wherein the center of the hub is a hollow cylinder; the periphery of the hub is provided with a cone frustum and has an included angle downwards; the section of the blade is a semicircular tube type groove, a symmetric parabolic groove or an asymmetric parabolic groove; 4-16 paddles are symmetrically arranged on the hub; the tail end of the paddle is provided with a downwards inclined liquid guide rail, so that the defoamed liquid is injected into the liquid level; the defoaming device is arranged on a stirring shaft in the tank and rotates along with the stirring shaft together; and the raising foam in the reaction kettle is captured by the paddle groove of the defoaming device and is pushed to the tail end of the paddle under the action of the centrifugal force. Because the hub and the paddle are downwards inclined, the foam facilitates the liquid film to discharge liquid in the motion process, and the film is compressed, sheared and crushed. A super-hydrophobic material is coated on the surface of the paddle, and the defoaming effect is improved. The paddle structure is simple, can be pressed and formed by the plates, can be manufactured into different specifications and sizes according to the requirements and is low in manufacturing cost.

The invention discloses an external scaffold wall connecting structure and a construction method. A cantilever steel beam is fixed through bolts pre-buried in a concrete outer wall, and additionally,a basket pull rod is additionally arranged to provide lifting pull force for the cantilever steel beam. According to the external scaffold wall connecting structure, the cantilever beam does not needto stretch into a building to be fixed and is directly fixed to the outer side of the building outer wall, and the interior of the building is not affected; and after construction is completed and thecantilever beam needs to be dismounted, fire cutting is not needed, building and brushing are not needed, and the hidden danger of water seepage and leakage of a floor or a wall face is avoided.

The invention provides a roller chain for an admixture production facility. The roller chain comprises a pair of left and right inner chain plates, a pair of left and right outer chain plates disposed on two outer sides of the inner chain plates, sleeves press-fitted in sleeve holes of the inner chain plates, rollers capable of freely rotating on the sleeves, and pin shafts press-fitted in pin holes of the outer chain plates. A plurality of inner chain plates and outer chain plates are connected alternately. An oil guiding groove A is formed in an inner sidewall of each inner chain plate in such a manner of corresponding to each sleeve, and vertically extends to an exact upper surface of the sleeve from an upper end of the inner chain plate; an oil guiding groove B is formed in an external surface of each sleeve in such a manner of corresponding to the oil guiding groove A, and horizontally extends to the middle of the sleeve from the upper surface of the sleeve and further extends from the middle to two sides into a circular ring shape. The roller chain for the admixture production facility allows internal application of lubricating oil thereto; not only is the lubricating oil saved, but also greasy appearance of an existing chain after oil application is avoided, and the whole chain and the facility using the chain are kept clean and pleasing to the eye.

The invention relates to an unfolding and folding type solar cooker made from a flexible reflective film. The solar cooker comprises a support frame and a light condensing device used for reflecting solar light, wherein the light condensing device comprises an umbrella-shaped framework body with a recessed structure, the flexible reflective film used for reflecting the solar light and a fixing device; and the flexible reflective film, the fixing device and the umbrella-shaped framework body form a concave mirror capable of reflecting the solar light irradiated on the flexible reflective film and condensing the solar light at the focus. The unfolding and folding type solar cooker made from the flexible reflective film has the advantages that by using the detachable framework body and the light condensing device with unfolding and folding functions, space occupied by the solar cooker during storing and transporting is greatly reduced; and by using the flexible reflective film as a light condensing plate of the solar cooker, the weight of the solar cooker is greatly reduced. The unfolding and folding type solar cooker made from the flexible reflective film is light in weight, is convenient to disassemble and install, does not affect cleanliness and saves space during storing and transporting.

A graphene painting mist treating agent comprises an A agent and a B agent; wherein the A agent is prepared from the following raw materials in percentage by weight: 0.02-0.08% of modified graphene, 1.6-2.6% of water-soluble melamino-formaldehyde resin, and 0.2-0.6% of sodium hydroxide; the B agent is prepared from the following raw materials in percentage by weight: 0.06-0.12% of water-based sodium bentonite, 0.2-0.5% of water-soluble acrylic resin, 5-10% of aluminium polychlorid and the balance of water. By using the graphene painting mist treating agent, adhesion of paint slag is completely eliminated, so that the paint slag is not adhered to a water screen or water curtain, air quality in a spraying room is increased, and no flying paint phenomenon exists in a factory; the paint slag completely flocculates and floats upwards, so that the paint slag is convenient and simple to fish out cleaning the bottom of a groove is not affected, and the cost for cleaning the groove is not increased; recycled water is clear and transparent; and the addition amount of drugs is small, so that costs are reduced and discharge is reduced.

The invention relates to a mineral conveying device with the mineral sorting function. The mineral conveying device comprises a conveying table, a fourth block leaking port and a sliding block, the interior of the conveying table is provided with a flowing groove, the bottom end of the interior of the flowing groove is provided with a first block leaking port, the right side of the first block leaking port is provided with a second block leaking port, the right side of the second block leaking port is provided with a third block leaking port, a fourth block leaking port is arranged on the right side of the third block leaking port, a flowing pipe is connected to the lower end of the fourth block leaking port, a buffer table is fixed to the lower end of the flowing pipe, and a supporting frame is connected to the left side of the buffer table. The mineral conveying device with the mineral sorting function is characterized in that the first block leaking port, the second block leaking port, the third block leaking port and the fourth block leaking port are all in round shapes, the diameters of the first block leaking port, the second block leaking port, the third block leaking port and the fourth block leaking port are sequentially increased, minerals in the smallest sizes slide down through the first block leaking port, and ores in the relatively larger sizes slide down throughthe second block leaking port according to different sizes of the ores.

The invention provides a laser welding machine for automobile battery shell manufacturing. The laser welding machine is suitable for production and application in the technical field of laser weldingmachines. The laser welding machine for automobile battery shell manufacturing comprises a machine body, wherein the machine body comprises a working table, supporting columns and a workpiece placement table; the working table is located in front of the machine body and integrally arranged with the machine body, the workpiece placement table is located above the working table, and the supporting columns are connected to the four corners of the top end of the working table in an embedded mode; and the top ends of the supporting columns are connected with the workpiece placement table in a welded mode, and a placement groove is formed in the top end of the workpiece placement table. The laser welding machine for automobile battery shell manufacturing has the beneficial effects that through the arrangement of side boxes, clamping plates and magnetic plates, accumulation of metal chippings can be reduced, not only is the welding work not affected, but also the metal chippings can be cleared away more rapidly, so that secondary raising of the metal chippings is prevented, the practicability of the laser welding machine for automobile battery shell manufacturing is improved, and the problem that an existing laser welding machine for automobile battery shell manufacturing is poor in practicability is solved.

The utility model relates to a flow control device for steel ball flaw detection, which comprises a flowing ball bridge, a vortex detection device, a ball discharging device and a ball discharging switch. One end of the flowing ball bridge is connected with the vortex detection device, the other end of the flowing ball bridge is connected with the ball discharging device, and the ball discharging device is provided with the ball discharging switch; a fiber detection head is arranged above the flowing ball bridge, and the fiber detection head is connected with a light source and a photoelectric amplifier respectively; and the photoelectric amplifier is connected with the ball discharging switch through a programmable controller. The fiber detection head is arranged above the flowing ball bridge, the programmable controller does not work under normal flow rate, steel balls are accumulated on the flowing ball bridge when the flow rate is high, the time for transmitting signals to the programmable controller by the fiber detection head is over a preset time, and the programmable controller controls the ball discharging switch to close so as to stop discharging the balls. By adopting the control device, the steel balls are not magnetized, the subsequent milling and cleaning are not influenced, the working efficiency is indirectly improved, and the power consumption of the fiber detection head is extremely little.

The invention discloses an electric heating block. The electric heating block comprises a top part contacted with the bottom of a bowl body, wherein the top part is provided with a switch; the switch is pressed when the top part is contacted with the bottom of the bowl body, so that the electric heating block can be in an electrified state; and the switch is not pressed when the top part is separated from the bowl body, so that the electric heating block is powered off. By adoption of the electric heating block, the bowl body can be heated as required, convenient use of the bowl is not influenced, and maintenance of cleanliness and thermal insulation property of the bowl is facilitated.

The invention discloses a method for cleaning a silicon wafer at room temperature and belongs to the field of semiconductor chip processing and manufacturing. The method comprises steps of mixing ammonium hydroxide, hydrogen peroxide and deionized water according to a volume ratio of 1: 2: 50, and controlling the temperature of the silicon wafer cleaning solution to be room temperature when the silicon wafer is cleaned. After the silicon wafer is cleaned, the silicon wafer with a clean and stain-free surface can be obtained through the spin-drying process. The ammonium hydroxide, the hydrogenperoxide and the deionized water are mixed according to the volume ratio of 1: 2: 50, the use amount of the ammonium hydroxide and the hydrogen peroxide can be effectively reduced, volatilization of chemicals can be greatly weakened when the cleaning agent is utilized at the room temperature, and the cleaning agent can be stored for three days without affecting the cleaning effect of the cleaningagent. The method is advantaged in that the diluted cleaning fluid has significant improvement in safety and health, and production costs are reduced due to reduction in the amount of chemicals used.

The invention provides an intelligent dredging vehicle for a deep inspection well, which is characterized in that a clean water tank and a sewage absorption tank are arranged on an auxiliary frame ofa chassis, and a sewage box is arranged on a rear cover of the sewage absorption tank; a suspension arm is arranged on an upright post between the sewage absorption tank and the clean water tank, anda rotating joint and a sewage absorption pipe turntable are arranged on the clean water tank; a left power take-off device and a right power take-off device are arranged below an engine, one power take-off device is connected with a vacuum pump connected with the sewage absorption tank, the other power take-off device is connected with an oil pump and an air compressor component, one end of an airoutlet pipe of an air storage bag is connected with an air inlet of a clean water tank through a three-way valve, the other end of the air outlet pipe of the air storage bag and an air outlet pipe connected with a water outlet of the clean water tank come together to form a water-gas pipe through a water-gas conversion slide valve; the sewage absorption pipe and the water-gas pipe are coiled on the sewage absorption pipe turntable and are connected with the suspension arm; the other end of the sewage absorption pipe is provided with a sewage disc, a manipulator, a camera and a signal receiving device, and a claw bucket device provided with the camera and the signal receiving device is arranged at the end part of a steel wire rope wound on a steel wire rope winding and unwinding device ofthe suspension arm. The vehicle achieves the intelligent cleaning of dry and wet inspection wells, and has the advantages of low labor intensity, safety, high efficiency and no pollution.

The invention relates to a kitchen sink, which comprises a pool body. The pool body is provided with a water tank. A groove is formed on one side of the water tank. A water control plate that can be pulled out from the groove is installed in the groove. There are several rows of parallel water control tanks. The water control tanks are inclined structures with low outside and high inside. The water control board is provided with suspension brackets, and the suspension brackets are stored in the storage grooves on the water control board and can be supported upwards. The invention can control the water of the tableware, and the residual water will directly flow into the pool without affecting the cleaning of the stove, and at the same time, it does not need to occupy the space of the stove. It is especially suitable for small-area kitchens and enhances the functionality of the kitchen sink.

The invention discloses an air conditioner air duct dust accumulation amount monitoring system and method with an early warning function. The monitoring system comprises at least two piezoelectric cantilever beam sensors, a detection integration unit and a control center; the at least two piezoelectric cantilever beam sensors are arranged in a detection air duct where an accumulated dust sampling point of a to-be-detected air conditioner is located, a first groove is formed in the inner wall of the bottom of the detection air duct, the first groove is used for containing one piezoelectric cantilever beam sensor, and the upper surface of a piezoelectric film of the piezoelectric cantilever beam sensor and the upper surface of the inner wall of the bottom of the detection air duct are positioned on the same horizontal plane; and the detection integration unit is in communication connection with the control center and each piezoelectric cantilever beam sensor. Online detection can be realized, and a result can be conveniently, rapidly and accurately obtained; and the system is simple, the sensors are small in size, the system is convenient to install, cleaning of the air duct is not affected, and building decoration is not affected.

The invention aims to provide a clamp type oil splashing shield. The technical scheme includes that the clamp type oil splashing shield comprises a barrier, rotary shafts and clamps. The rotary shafts are connected to the lower edge of the barrier, the clamps are connected to the other ends of the rotary shafts, and the barrier, the rotary shafts and the clamps are integrally connected with one another; the clamps are clamped at optional positions of the edge of a pot during usage, so that requirements of habit of various chefs can be met. The clamp type oil splashing shield has the advantages that boiling oil can be stopped from flashing out to scald people and contaminate dresses and cooking benches; the clamp type oil splashing shield can be mounted and detached conveniently, accordingly, the boiling oil can be stopped from splashing out, and influence on cleaning can be prevented.

The invention discloses an environment-friendly cleaning and repairing agent for a composite insulator. The environment-friendly cleaning and repairing agent comprises the following components in percentage by weight: 20-60% of a main cleaning agent, 10-20% of a nonionic surfactant, 5-10% of a penetrating agent, 0.5-1% of a protective agent, 5-10% of a fluorinating agent and the balance of water.With the synergistic effect of the components, the composite insulator cleaning and repairing agent product is high in cleaning capacity without influencing the insulating property or damaging the environment and can perform surface repairing on aged silicone rubber of the composite insulator in normal operation and is an efficient and environment-friendly composite insulator cleaning and repairing agent.

The invention relates to a self-cleaning high-efficiency sludge granulator, which well improves the working efficiency of granulation, cleans the filter cartridge without affecting the working, and effectively improves the service life of the filter cartridge. The technical solution comprises a bottom plate, a cylinder body is arranged on the bottom plate, the lower side wall of the cylinder body is provided with a recess, the non-recessed part of the side wall of the cylinder body is provided with a through groove, a filter cartridge is sleeved on that outer circle of the cylinder body, a scraper plate is sleeved on that outer circle of the filter cartridge, a sweep plate is arranged in that recess, a support plate is arrange between that cylinder body and the bottom plate, the scraper plate and the sweep plate can move up and down together with the support plate, a spring is connected between the support plate and the bottom plate, a rotating shaft is arranged in the cylinder body, a top plate is arranged at the upper end of the cylinder body, a cover plate is arranged at the upper end of the filter plate, a through hole is arranged at the center of the cover plate, a push rod is arranged on the side wall of the through hole, and a push plate on the outer edge of the rotating shaft. The invention has novel conception and ingenious structure.

The invention relates to the technical field of solar photovoltaic, and discloses a catkin cleaning device for a solar panel. The cleaning device comprises a bottom plate, a first partition plate is fixedly connected to the left side of the top of the bottom plate, a first opening is formed in the upper side of the first partition plate, and a third partition plate and a second partition plate are arranged on the left side of the first partition plate. The bottom of the third partition plate and the bottom of the second partition plate are fixedly connected with the top of the bottom plate, the top of the third partition plate is fixedly connected with the supporting frame, the supporting frame is in an L shape, and a second opening is formed in the bottom of the supporting frame. Due to arrangement of the first opening, seawater can be collected, the seawater collected to be at a certain extent can be extruded out of a movable plate. The movable plate moves to drive a sliding block to slide in a straight pipe, so that part of water flow flows to a solar panel body through negative pressure, catkins can be conveniently cleaned, and the situation that the catkins are attached to the solar panel body and cannot be cleaned up is avoided.

The invention provides a method for enhancing retention force of an invisible correcting device. According to different needs of patients, corresponding forceps can be selected to form convex points protruding to the inner surface at tooth gaps or tooth faces of the invisible correcting device. If the aim is to only increase the retention force so as to control ability of the invisible correctingdevice to a whole tooth, tooth gap forceps are selected to form the convex points protruding to the inner surface at tooth gaps or tooth faces of the invisible correcting device; if the aim is to enhancing the retention force so as to better realize small-amplitude inclined movement, rotation and root-controlled movement of the tooth to a certain specific direction, tooth face forceps are selectedto form the convex points protruding to the inner surface at corresponding positions of the tooth faces of the invisible correcting device. The invention further provides the invisible correcting device which is simple and reliable and has no impact on tooth cleaning.

The invention discloses a temperature sensor packaging structure and a food processor adopting the same, and belongs to the technical field of packaging structures. The packaging structure comprises ashell; the shell is composed of a cylinder body with a single-side opening and a sealing ring formed at the sealing end of the cylinder body; a fixed frame is arranged in the cylinder body; a temperature sensing element is clamped between the fixed frame and the bottom in the cylinder body; a conductive connecting piece is arranged on the fixed frame; the conductive connecting piece is conductively connected with the temperature sensing element and an external control panel; the food processor comprises a cutter holder; a first mounting through hole matched with the cylinder body is formed inthe cutter holder; the cylinder body is arranged in the first mounting through hole; a second mounting through hole corresponding to the first mounting through hole is formed in a heating disc; and an elastic conductive structure which is in contact with the conductive connecting piece is arranged in the second mounting through hole. The invention aims to provide the temperature sensor packagingstructure which is compact, accurate in temperature detection and easy to clean, and the food processor adopting the same; and the food processor is used for processing food materials.

The invention belongs to the technical field of mine water, and particularly relates to underground environment-friendly water treatment equipment and a using method. The underground environment-friendly water treatment equipment comprises a machine shell, and further comprises a stirring device, a filtering device and a cleaning device, wherein the stirring device is located on the inner wall of the machine shell and mixes mine water needing to be treated with chemicals for precipitation. According to the underground environment-friendly water treatment equipment and the using method, by arranging the cleaning device, residual precipitates in the stirring tank can be cleaned, the stirring tank is heated by a heating pipe, the residual precipitates are dehydrated, a sliding block moves, a cleaning pipe is located in the stirring tank, a cleaning motor drives the cleaning pipe to rotate, the side brush and the bottom brush respectively scrape solid precipitates in the stirring tank, the sucking pump can generate suction force, and the scraped solid precipitates are sucked through the cleaning pipe and the air suction port, so that the stirring tank can be ensured to be clean, and the situation that residual precipitates are attached to the inner wall of the stirring tank to affect next use is avoided.

A rotary cleanable sludge granulator can well improve the working efficiency of granulation without affecting the cleaning of a filter cylinder, so the service life of the filter cylinder is effectively prolonged. The rotary cleanable sludge granulator comprises a bottom plate, a cylindrical shell is arranged above the bottom plate, the sidewall of the lower part of the cylindrical shell is provided with a concave portion, the filter cylinder sleeves the outer circle of the cylindrical shell, a scraper plate sleeves the filter cylinder, a cleaning plate is arranged in the concave portion, a support disc is arranged between the cylindrical shell and the bottom plate, first springs are connected between the support disc and the bottom plate, and a rotating shaft is arranged in the cylindrical shell; and a top plate is arranged at the upper end of the cylindrical shell, a second spring is connected between a cover plate and a support plate, a pin shaft is inserted in the cover plate, thepin shaft and the rotating shaft are arranged eccentrically, the rotating shaft can drive the filter cylinder to rotate through the pin shaft in order to stretch the second spring, and after the rotating shaft continuously rotates for a certain time, the filter cylinder reversely rotates under the action of the second spring in order to restore the filter cylinder to the initial state. The granulator has the advantages of novel conception and ingenious structure.

The present invention relates to a cleaver (8) having a crush-forged crank (6). In order to provide a cleaver having an improved manageability and surface feel, thereby preventing any possible injuries during the use of the cleaver, the invention proposes that the crank (6) according to the invention extends from the handle (4) in the direction of the cutting edge (11) along the edge surface (5) on the handle side. And if a bolster front edge (17) resting on a side face of the blade (2) of the crank extends obliquely in such a manner that an upper end (19) of the edge (17) is closer to a front edge (20) of the blade (2) than a lower end (21) of the edge (17). The cleaver (8) is manufactured from a blank stamped in one piece.