53results about How to "Achieve multi-purpose use" patented technology

The invention discloses a multifunctional lifting device which comprises a front support and a rear support which are provided with load-bearing truckles. A front telescoping frame and a rear telescoping frame are penetratingly disposed in the front support and the rear support respectively. An upper standing column is fastened at the top end of the front telescoping frame. A front crossbeam penetrates in the front telescoping frame. A rear crossbeam penetrates in the rear telescoping frame. A middle crossbeam penetrates in the front crossbeam and the rear crossbeam. Rope guide wheels on the same horizontal line are mounted on the front crossbeam and the rear telescoping frame. One end of a reinforced steel wire rope is connected to the end of the front crossbeam. The other end of the reinforced steel wire rope penetrates through the upper standing column and is connected to the end of the rear telescoping frame in a tensioning manner. A balance weight component is disposed on the rear support. A working steel wire rope penetrates through the rope guide wheel of the front crossbeam, penetrates into a safety lock, passes the rope guide wheel on the rear telescoping frame and is guided into a power lifting device. A cradle handing part is disposed at the end of the front crossbeam. The multifunctional lifting device has the functions of glass lifting and cradle lifting, and is convenient for displacement, safe and reliable.

The invention relates to a multifunction rotavator which comprises a rotavator body and a hob assembly, wherein the hob assembly is arranged on a rotary shaft of the rotavator body, and the rotary shaft is connected with the power part of the rotavator body through a transmission mechanism. The invention is characterized in that the hob assembly is installed on the rotary shaft through a dismountable structure; when the hob assembly is dismounted, a main wheel assembly is installed on the rotary shaft through the dismountable structure, and a snow pushing assembly is also installed in front ofthe rotavator body through the dismountable assembly so as to form a snow grader. With reasonable dismountable structures and by matching replacing parts, such as the snow pushing assembly, the mainwheel assembly and the like, the rotavator can be rapidly changed into a snow grader, therefore realizing the multifunction application and saving investment and place space, achieving a reasonable whole structure and being economical and practical.

The invention discloses a multifunctional table lamp. The multifunctional table lamp comprises a cylindrical fixed table. A fixed rod is arranged on the fixed table. A flexible rod is arranged at one end of the fixed rod. A lampshade is arranged at one end of the flexible rod. A bulb is arranged inside the lampshade. A plurality of grooves are formed in a front end body of the fixed table. Box bodies which are movably connected are arranged in the grooves in a contained mode. A rear end body of the fixed table forms a loudspeaker box. An interface is formed in the lower portion of the loudspeaker box. A digital memory disc is placed inside a left end body of the fixed table. A USB interface connected with the digital memory disc is formed in the wall body of the fixed table. A display screen is formed on the wall body of a right end body of the fixed table. A plurality of buttons are formed on the lower portion of the display screen. A chip connected with the buttons, the loudspeaker box, the digital memory disc, the display screen and the USB interface is arranged inside the fixed table. Multiple functions such as the small object containing function and the music playing function can be achieved while the illumination function is achieved.

The invention discloses a multifunctional cart used for a spinning workshop. The multifunctional cart comprises a bottom board. The outer wall of one side of the top of the bottom board is connected with a push rod through fixing bolts, two first supporting rods are connected to the outer wall of the top of the bottom board through fixing bolts, symmetrically-formed installation holes are formed in the outer walls of the opposite sides of the two first supporting rods, the same rotary rod is inserted in the two installation holes, the outer walls on the two sides of the rotary rod are connected with rotary discs through fixing bolts, and the outer wall of the side, away from the rotary rod, of each rotary disc is connected with spring rotary shafts through fixing bolts. A weaving cylinderis clamped and fixed through insertion rods and is spun into an annular shape through the rotary discs, a fabric cannot be squeezed, any weaving cylinder can be conveniently taken down, objects are conveyed through the cart in the spinning workshop, meanwhile, dust in the workshop can be collected, and multiple functions of the cart are achieved.

The invention discloses a water circulating system for absorbing heat of a cooking bench. The water circulating system for absorbing the heat of the cooking bench comprises a water supplying module and a hot water outputting pipe, wherein the water supplying module is connected with a water inlet of a water heater; the hot water outputting pipe is connected with a water outlet of the water heater; a shower head is connected to the hot water outputting pipe through a manual switch. The water circulating system for absorbing the heat of the cooking bench is characterized in that at least one heating module is further connected to the hot water outputting pipe; a water inlet pipeline is located in the upper stream of each heating module, a heat exchanging pipeline is located in the middle stream of each heating module, and a water returning pipeline is located in the lower stream of each heating module; water in the water returning pipeline of each heating module flows into the same exhaust pipe water inlet pipe through a water pump; exhaust pipes are connected to the other end of the exhaust pipe water inlet pipe, the adjacent exhaust pipes are connected in series end to end through U-shaped pipes in sequence, and the exhaust pipes are tightly attached to the lower portion of a panel of a gas stove side by side; an exhaust pipe water outlet pipe is connected to the other ends of the exhaust pipes; the exhaust pipe water outlet pipe is connected to a water tank, and a water outlet pipe of the water tank is connected with the water inlet of the water heater. The water circulating system for absorbing the heat of the cooking bench has the beneficial effects that the heat emitted during using of the gas stove is used effectively, the using efficiency of energy is improved, the multifunctional purposes of the water heater are achieved, and the environmental protection requirement is met through concentrated heating.

The invention discloses a quick turn-off valve for water pump operation connection. The quick turn-off valve comprises a valve shell, wherein a liquid inlet pipe and a liquid outlet pipe are arrangedon two sides of the valve shell, a first-stage liquid inlet turn-off assembly is arranged in the middle part of the outer wall of the top end of the liquid inlet pipe, the middle part of the outer wall of the top end of the liquid outlet pipe is provided with a first-stage liquid outlet turn-off assembly, and the first-stage liquid outlet turn-off assembly and the first-stage liquid inlet turn-offassembly are the same in structure; three sliding blocks are uniformly distributed in a cylinder hole of the valve shell, a first valve body are coaxially connected between two adjacent sliding blocks, and a second valve body are coaxially connected between two adjacent sliding blocks; and a screw rod is fixedly connected to the top surface of the sliding block positioned above, a threaded section of the screw rod is spirally arranged at a threaded hole in the middle part of the top plate of the valve shell; and a handle is fixedly connected to the top end of the screw rod. The quick turn-offvalve has the advantages that use is rapid, efficient and convenient, water path opening and closing efficiency in the water pump operation can be greatly improved, and the quick turn-off valve is suitable for popularization and application.

The invention relates to a multifunctional portable laser lighting system and a laser flashlight. The lighting system comprises a first optical system and a second optical system. A laser for emittingexciting light and a wavelength conversion device for absorbing a part of the exciting light to form excited light are arranged in the first optical system or the second optical system. The second optical system is arranged at an outermost part of a light emitting direction. The first optical system and the second optical system can be relatively displaced or separated. When the two optical systems are not displaced or separated, lighting light synthesized by the excited light and the exciting light which is not absorbed by the wavelength conversion device is emitted by the second optical system. When the two optical systems are relatively displaced or separated, the exciting light emitted by the laser is emitted from the first optical system. Through judgment of whether the two optical systems are relatively displaced or separated, free switching of the functions of emitting lighting light or exciting light by the lighting system is realized, thereby achieving efficient ultra-long-distance lighting and ultra-long-distance call for help or fire making.

The invention discloses an electric energy metering chip and a circuit detection system thereof. The circuit detection system comprises a calculation module and a detection module; the calculation module is used for calculating a voltage effective value of a current channel when a current signal flows through the current channel of the electric energy metering chip; the detection module is used for generating a fault detection signal of an external circuit according to the voltage effective value. According to the electric energy metering chip, the multifunctional purpose of the electric energy metering chip is achieved, the electric energy metering chip has the electric energy metering function and can also achieve detection for current overload and electric leakage, circuit implementation is simple, and the manufacturing cost is low.

The invention discloses a main frame beam support replacement structure and a construction method thereof. The main frame beam support replacement structure comprises an enclosure structure, an innersupport structure, a main frame structure and a support replacement structure body, and maintenance piles form a closed and independent underground space through occlusion of the piles; the inner support structure supports the enclosure structure before construction of the main frame structure; the main frame structure comprises a frame column, a frame beam, a structural plate and an underground outdoor wall, and the frame beam comprises a transverse frame beam body and a longitudinal frame beam body; and the support replacement structure body is arranged on the transverse frame beam body interfering with a steel vertical column for support replacement and comprises an inclined support replacement beam and a horizontal support replacement beam. A support replacement structural system is designed, when the steel vertical column and the frame beam are overlaid in position and the frame beam cannot transmit the lateral pressure of a foundation pit as a support replacement beam, the support replacement beams are symmetrically constructed on the two sides of the frame beam as support replacement beams, the requirements of safety and stability of the foundation pit are met, and meanwhilethe cost is saved to the greatest extent.

The invention discloses a cosmetic containing device which comprises a housing, a rotary type containing cylinder, a makeup lamp and a telescopic makeup mirror, wherein the housing consists of a front cover plate, a bottom plate, a left vertical plate, a right vertical plate, an upper cover plate and a rear vertical plate; the front cover plate, the bottom plate, the left vertical plate, the right vertical plate, the upper cover plate and the rear vertical plate form a first containing cavity in a surrounding manner; a plurality of springs are fixed on the bottom plate; the upper ends of the springs are fixedly connected with a support disc; a through hole is formed in the upper end of the left vertical plate; a counter bore is formed in the inner side of the upper end of the right vertical plate; bearing mounting holes are formed in both the left end and the right end of the rotary type containing cylinder; the left end and the right end of the rotary type containing cylinder are respectively and rotationally connected with the through hole and the counter bore through a rotating shaft; the makeup lamp and the telescopic makeup mirror are mounted outside the right vertical plate. The cosmetic containing device is reasonable in structure, attractive and tidy in appearance, and relatively high in application value, functions of cosmetic containing, lighting and makeup are integrated, and cosmetic classification and settlement can be achieved as a large number of containing cavities are available.

The invention relates to a folding chair, which comprises a base, two side plates, a chair cushion part, a chair back part, a power device and an upper cover, wherein the chair cushion part is pivoted between the two side plates, and can be relatively and forwards pivoted to the horizontal state or can be backwards pivoted to a vertical state; the chair back part is arranged on the base in a way capable of upwards and downwards moving; the power device can upwards and downwards move the chair back part; the upper cover is pivoted on the side plates; when the upper cover is upwards and backwards opened, the chair back part can upwards move to a position in front of the upper cover; the base is arranged, and the base is continuously butted against the ground before and after the folding, so that the folding chair is enabled to be capable of independently standing after the folding; the chair back part is arranged on the base in a way capable of upwards and downwards moving, so that the integral height can be reduced after the folding chair is folded by downwards moving the chair back part; the integral height can be reduced after the folding, so that articles can be put onto the upper cover, and the upper cover can be used as a desk top; and further, the multifunctional purpose is achieved.

The invention discloses a broad ground clearance adjustable chassis and an adjusting method. The adjustable chassis is composed of a frame, a front axle, a rear axle, a power system, a swinging ground clearance adjusting system, a balanced and steady regulating system and the like. The swinging ground clearance adjusting system comprises a controller, a servo valve, swinging hydraulic cylinders and the like. The balanced and steady regulating system comprises gyroscopes, controllers, servo valves, swinging hydraulic cylinders and the like, wherein the gyroscopes, the controllers, the servo valves, the swinging hydraulic cylinders and the like are arranged on the front axle and the rear axle. The power system comprises an engine, a clutch, a pump station, a hydraulic motor, a proportional valve, front wheels, rear wheels and the like. The controllers control the servo valves to adjust the four swinging hydraulic cylinders to synchronously ascend and descend so as to stably change the ground clearance of the chassis, even the ground clearance of the chassis can be smaller than the radius of the wheels so that the ultra-low ground clearance of the chassis can be achieved. The balanced and steady controllers control the flow of the swinging hydraulic cylinders through the servo valves respectively according to unbalanced and unsteady signals of the front axle and the rear axle collected by the gyroscopes, and therefore the chassis can be automatically adjusted to be balanced and steady.

The invention discloses a multifunctional hanging book shelf which comprises a frame, wherein multiple layers of shelves are arranged on the frame, with different intervals. The multifunctional hanging book shelf is characterized in that a strip-like hole is arranged in the center of each shelf, a rope passes through each strip-like hole, and the two ends of each rope are both provided with a rope hanger used for preventing the ends sliding out of the strip-like holes. When the multifunctional hanging book shelf is in use, based on the simple mechanical principle and the structure characteristics of the book shelf per se, books can be placed in a hanging way. Through the strip-liked holes in the centers of the concentric-circle-shaped shelves, the rope hanger at the top of each rope is arranged above the strip-liked hole, a book is hung in the middle, and the hanger at the bottom of each rope becomes a better barrier under the action of force and the book can be hung on the rope stably, and moreover, the rope is sandwiched in the book and can be used as a bookmarker. The multifunctional hanging book shelf has the advantages of concise overall modeling, space-saving performance and separating function for separating space, has multiple functions and is applicable to various spaces.

The invention discloses a mountaineering umbrella capable of freely adjusting a lighting lamp. The mountaineering umbrella capable of freely adjusting the lighting lamp comprises an umbrella stick, an umbrella handle is arranged under the umbrella stick, an umbrella head is formed at the top end of the umbrella stick, the end of the umbrella head is provided with an extending body which is in threaded connection with the end of the umbrella head, and the top end of the extending body is provided with a conical tip portion; a cavity is formed in the umbrella handle, a fixed rod is arranged in the cavity, an annular storage battery is arranged around of the fixed rod, the annular storage battery is fixedly connected with the fixed rod, a telescopic flexible rod is arranged in the fixed rod, and the end of the flexible rod is provided with the lighting lamp; the mountaineering umbrella capable of freely adjusting the lighting lamp further comprises a protecting cover which comprises a cover body with a cavity formed in the interior, a concave cavity is formed in one side of the cover body, and an infrared transmitter is arranged on the other side of the cover body; the protecting cover is arranged at the tail end of the umbrella handle in a screwing mode. According to the mountaineering umbrella capable of freely adjusting the lighting lamp, the defects in the prior art can be overcome, any angle of lighting can be adjusted, and the lighting convenience can be improved; in addition, a warning effect is achieved and used for reminding surrounding people and things.

The invention discloses a multifunctional combined rice mill. The rice mill mainly comprises an electric control and fan part, a gravity screen and a rice mill part, a stoner, rice huller and liftingmachine part and a mixed bran crushing part, wherein main devices of the parts include a fan, a milled rice sieve, a rice disc, a rice air pipe for conveying rice, a rice unloader connected to the topof the rice air pipe, a gravity sieve, a rice runner, a coarse rice husk pipeline, a rice mill body, a stoner, a rice huller, a lifting machine, a rice husk, coarse rice husk and rice husk and coarserice husk mixture separator, and a rice husk air sealing machine. The rice mill has the advantages of being short in technical process, high in production efficiency, low in energy consumption, convenient for users to operate, low in noise and the like. More importantly, by replacing part of small parts of the rice mill part, multiple functions of rice milling or hulling of mung beans, corn kernels, soybeans, wheat, coix seeds, chenopodium quinoa and buckwheat and the like can be realized.

The invention relates to the technical field of biomedicine, and provides a collector. The collector comprises a pipe body, the pipe body is internally provided with a filter plate in the axial direction, and the filter plate divides an accommodating space of the pipe body into an initial sample storage area and a sample extraction area in the axial direction. The collector has the advantages thata swab attached with oral exfoliative cells is placed in the initial sample storage area, DNA in the cells is released by cracking components in a preservation solution, and the DNA is filtered through the filter plate to the sample extraction area, so that bending or position deviation of a sampling needle due to the contact between the sampling needle and the oral swab is avoided; on the otherhand, when the collected saliva contains thick sputum or food debris, the clogging of the sampling needle is prevented by filtering through the filter plate, there is no need to take out the swab or liquefy the sputum in the operation, the operation is convenient, and the time is saved.

The invention relates to a multifunctional cascaded tail-end power output device which comprises multiple cascaded socket bodies, a plugging head and a power connection plug, and the power connection plug is connected with an external power supply. The top of each cascaded socket body is provided with a group of plug connection holes into which plugs of electrical appliances can be inserted, the multiple cascaded socket bodies are inserted in an end-to-end manner successively to form a patch board and are connected with one another, the power connection plug is plugged into the head end of the cascaded socket body at one end of the patch board and is connected with the corresponding cascaded socket body, and the plugging head is inserted into the tail end of the cascaded socket body at other end of the patch board and is connected with the corresponding cascaded socket body. The multiple cascaded socket bodies are arranged and can be combined at random according to requirements, the structure is simple, and use is convenient.

The invention discloses a pair of tongs and belongs to a shearing tool product and particularly provides a pair of tongs. The pair of tongs comprises a tong body, wherein two handles of the tong body are connected in a cross mode, and a tong head is connected to the top ends respectively. The pair of tongs is characterized in that 100-160 triangular edges are parallelly and evenly arranged on the inner side of one handle of the tong body, and a fork opening formed towards two sides is formed in the tail end of the other handle. The pair of tongs has the advantages that people can conveniently use the dense thin triangular edges arranged on the inner side of the handle to polish irony products, can further utilize the fork opening formed in the tail end of the handle and formed towards the two sides to pull out irony nails driven in the irony products and accordingly achieves the multifunctional purpose of the tongs.

The invention relates to the field of furniture, in particular to a bedside cabinet with a clothes warming function. The bedside cabinet comprises a tabletop, a cabinet body and a cabinet door. A clothes placement plate is installed in the middle of an inner cavity of the cabinet body, a heater, a sterilizer, a temperature sensor, a controller and an exhaust fan are installed inside the cabinet body, a control panel is arranged on the cabinet door, the heater, the sterilizer, the temperature sensor and the exhaust fan are all electrically connected with the controller, the controller is operated by the control panel, the temperature inside the cabinet body is displayed, the controller is provided with an appointment timing device, temperature detected by the temperature sensor inside the cabinet body is transmitted to the controller, and the heater is controlled by the controller to be turned on or off. Clothes can be rapidly subjected to heating, sterilizing and disinfecting, and it is ensured that people can wear clothes with the proper temperature when getting up the second day.

The invention discloses a sewage treatment system of a cultivation farm, and relates to the technical field of sewage treatment. The sewage treatment system of the cultivation farm comprises a sewage collection tank, a pretreatment tank, a fermentation tank, a filtering tank and a secondary sedimentation tank which are sequentially communicated, wherein the filtering tank is provided with a water inlet communicated with the fermentation tank; a grid is mounted below the water inlet; a water outlet communicated with the secondary sedimentation tank is formed below the grid; a high-pressure pump is mounted below the grid, and connected with the water outlet by a first pipeline; the filtering tank is connected with a manure collection tank; the secondary sedimentation tank and the manure collection tank are both equipped with ultraviolet sterilization devices; the secondary sedimentation tank is connected with a plurality of distributed water pipes by a main water pipe; a metering pump and a first solenoid valve are mounted on the main water pipe; metering valves and second solenoid valves are mounted on all of the distributed water pipes; and the metering pump, the first solenoid valve, the second solenoid valves and the metering valves are connected with a controller. The sewage treatment system of the cultivation farm recycles swill manure of the cultivation farm, and solves the problem of sewage discharge pollution.

The invention relates to the technical field of medical instruments, in particular to a medicine containing box. The medicine containing box comprises a box body. The box body is of a hollow structure. A medicine containing opening for containing a medicine bottle is formed in the upper side face of the box body, a magnetic device is installed at the inner bottom of the medicine containing opening, a clamping device is installed on the upper end face of the magnetic device, and the clamping device is arranged around the medicine containing opening. The magnetic device comprises two magnetizers of concave structures, a non-conductive magnet, a strip-shaped magnet and a rotary shaft. The clamping device comprises a first spring, a second spring, a non-magnetic iron block and a clamping part. The magnetic device and the clamping device can clamp the medicine bottle in the box body under the magnetic attraction effect. The medicine containing box is complete in structure, environmentally friendly and safe, the medicine bottle in the medicine containing box can be clamped, and the functionality of the medicine containing box can be improved.

The invention discloses a simple field recreational vehicle. The simple field recreational vehicle comprises a recreational vehicle body and is characterized in that a stool A and a stool B are arranged in the vehicle body; a movable table is arranged between the stool A and the stool B; the stool B comprises a movable armrest; the movable table comprises a tabletop A; the tabletop A is arranged in the vehicle body through a movable supporting frame; the tabletop A is movably connected with a desktop B; and concave areas used for containing the tabletop A and the tabletop B are formed on the edge of the stool A and the edge of the stool B. By means of the simple field recreational vehicle, the multifunctional purpose is achieved on the basis of not changing other structures of automobiles, the simple field recreational vehicle is compact in structure and can be based on a minibus, a commercial vehicle and a microbus, ordinary people can use the simple field recreational vehicle, existing resources are not wasted, cost is low, the simple field recreational vehicle can be successfully assembled within several minutes, integration of sleeping, taking a bath, cooking and official business handling is achieved, traveling is facilitated, the housing problem is solved, no extra expenses can be spent on housing, expenses can be saved by a half during traveling, and the simple field recreational vehicle is convenient and practical.

The invention relates to an integral plug-in type hand-operated direction valve. A control mechanism (1) and the upper end of a valve body component (2) are hinged with a hinged support (7) through a pin shaft (6); the hinged support (7) is connected with the upper end of the valve body component (2) through a bolt; a press block (4) is arranged at the lower end of the valve body component (2); the control mechanism (1) and the lower end of the valve body component (2) are in compressed connection through an eyelet bolt (5); valve core components (3) are arranged in the valve body component (2) which is in threaded connection with the valve core components (3) through an inner cavity of the valve body component (2); each control unit (8) comprises one control mechanism (1) and a pair of valve core components (3); and an outlet of the valve body component (2) is directly communicated with outlets of the valve core components (3). The integral plug-in type hand-operated direction valve has the characteristics of safety, speediness and reliability, capacities of providing a high-pressure and high-flow operating fluid and continuously working on site, low fault rate, convenience in assembly and maintenance and the like.

The invention discloses a wireless intelligent emergency illuminating lamp. The wireless intelligent emergency illuminating lamp comprises a shell, the two ends of the shell are fixedly connected withlamp caps, LED lamp beads are arranged in the lamp caps, lampshades are arranged on the outer sides of the LED lamp beads, and a camera-shooting and sound-reception module is arranged on the shell; and an optical detector, a work indicating lamp body and a switch are arranged on one side of the shell, and a wireless communication module, a power module, a rectifier, a driving module, a temperature sensor, a central processing unit, a GPS positioning module, a camera-shooting and sound-reception module and a storage are arranged in the shell. According to the wireless intelligent emergency illuminating lamp, the illumination intensity of the outside and the temperature of the lamp beads can be detected, then the temperature is transmitted to the central processing unit, the central processing unit can flexibly adjust the luminance of the LED lamp beads, resources are saved, the service lives of the LED lamp beads are further prolonged, and intellectualization of the emergency illuminating lamp is achieved.

The multi-functional hanging bookshelf includes a frame, and the frame is provided with several shelves with different layer spacings. There is a rope, and the two ends of the rope are provided with rope pendants for blocking it from sliding out of the long hole. When in use, the simple mechanical principle and the structural characteristics of the bookshelf are used to realize hanging books. Through the long hole in the center of the back-shaped shelf, the rope pendant at the top of the rope is placed above the long hole, and the book is hung in the middle. Under the action of force, the rope pendant at the bottom becomes a better barrier, and the books are stable. It can be hung on the rope, and the rope can also be used as a bookmark when it is caught in the book. The beneficial effect of the present invention is that the overall shape of the bookshelf is simple and space-saving, and at the same time, it can be used as a partition for separating spaces to achieve multi-functional purposes and is suitable for various spaces.

The invention discloses steel plate machining equipment for construction engineering. The steel plate machining equipment for construction engineering comprises a base, a support, a drilling working table, a sundry storing box, a milling cutter, a conveying belt, a first stand column, a transverse beam, a drilling bit, a sliding rod, a supporting frame, a second stand column, a control panel, a rubber layer, a saw cutting working table, a first baffle, a second baffle, a third baffle, a fourth baffle, a blocking strip, a third stand column, a roller, a track, a supporting column, a second roller, a fourth stand column, a grinding wheel, a rack, a travelling gear and rubber pads, wherein the saw cutting working table is arranged on the upper surface of the base; the rubber layer is disposedon the saw cutting working table; the sundry storing box is disposed on the side wall of the base; the first stand column is fixedly connected to the upper end of the sundry storing box; and the transverse beam is fixedly connected to the upper end of the first stand column. The steel plate machining equipment for construction engineering has the beneficial effects that usage is convenient, the space is saved, the defective percentage is low, the cost is reduced, multiple functions are achieved, and steel plates are prevented from being scratched or crushed during machining.

The invention discloses a method for drilling a T-shaped hole in a furniture manufacturing plate. The method comprises the following steps of installing the upper end part of a drill handle body on an electric drill or a drilling machine, rotating an adjusting nut, moving an adjusting rod downwards to enable a locking ring cap to be inserted and locked in a locking groove and a ring groove, enabling a ring groove milling cutter block to be in a contraction locking state, drilling a straight drill hole in the surface of a connecting plate through the drilling function of a drill bit block, rotating the adjusting nut, moving the adjusting rod upwards to pull out the locking ring cap from the locking groove and the ring groove, enabling a ring groove milling cutter block 4 to be in an expandable state, enabling the drill bit block to abut against the bottom surface of the drill hole, starting the electric drill or the drilling machine, and enabling the expanded ring groove milling cutter block 4 to mill the ring groove in the bottom of the drill hole, and after milling the ring groove in the bottom of the drill hole, enabling the electric drill or the drilling machine to rotate reversely, enabling the unfolded ring groove milling cutter block to contract into a lower drilling barrel, and taking out the drill bit of the drill hole.

The invention relates to a folding chair, which comprises a base, two side plates, a chair cushion part, a chair back part, a power device and an upper cover, wherein the chair cushion part is pivoted between the two side plates, and can be relatively and forwards pivoted to the horizontal state or can be backwards pivoted to a vertical state; the chair back part is arranged on the base in a way capable of upwards and downwards moving; the power device can upwards and downwards move the chair back part; the upper cover is pivoted on the side plates; when the upper cover is upwards and backwards opened, the chair back part can upwards move to a position in front of the upper cover; the base is arranged, and the base is continuously butted against the ground before and after the folding, so that the folding chair is enabled to be capable of independently standing after the folding; the chair back part is arranged on the base in a way capable of upwards and downwards moving, so that the integral height can be reduced after the folding chair is folded by downwards moving the chair back part; the integral height can be reduced after the folding, so that articles can be put onto the upper cover, and the upper cover can be used as a desk top; and further, the multifunctional purpose is achieved.

The invention relates to a multifunctional protective fence for a hot-dip galvanizing production line, and belongs to the field of protection devices. The multifunctional protective fence comprises bodies, a plurality of shutters are installed in the middles in the bodies, rotating columns are installed in the middles in the shutters, the shutters are rotationally connected with the rotating columns, fixing blocks are installed at the upper ends and the lower ends of the rotating columns, and the fixing blocks are fixedly connected with the interiors of the bodies. According to the multifunctional protective fence, the fixing columns can rotate by an angle in rotating grooves, so that the angle between the two bodies can be adjusted, and convenience is brought; the height between the bodies and sliding plates is adjusted, and after the height is determined, first locking bolts are locked, so that the height of the device is fixed, different heights are protected, and limitation is avoided; and a box door is opened, some objects can be placed on a partition plate to be stored, operation is convenient, some tools for construction operation can be placed on a containing plate, takingis convenient, and multiple functions of the bodies are achieved.

The invention discloses a quick turn-off valve for water pump operation connection. The quick turn-off valve comprises a valve shell, wherein a liquid inlet pipe and a liquid outlet pipe are arrangedon two sides of the valve shell, a first-stage liquid inlet turn-off assembly is arranged in the middle part of the outer wall of the top end of the liquid inlet pipe, the middle part of the outer wall of the top end of the liquid outlet pipe is provided with a first-stage liquid outlet turn-off assembly, and the first-stage liquid outlet turn-off assembly and the first-stage liquid inlet turn-offassembly are the same in structure; three sliding blocks are uniformly distributed in a cylinder hole of the valve shell, a first valve body are coaxially connected between two adjacent sliding blocks, and a second valve body are coaxially connected between two adjacent sliding blocks; and a screw rod is fixedly connected to the top surface of the sliding block positioned above, a threaded section of the screw rod is spirally arranged at a threaded hole in the middle part of the top plate of the valve shell; and a handle is fixedly connected to the top end of the screw rod. The quick turn-offvalve has the advantages that use is rapid, efficient and convenient, water path opening and closing efficiency in the water pump operation can be greatly improved, and the quick turn-off valve is suitable for popularization and application.