198results about How to "Achieve elongation" patented technology

The invention relates to a loose metal litter briquetting machine. A vertical main cylinder is arranged at the top of a stand, a piston of the main cylinder is connected with a punch in up-and-down reciprocating motion in a final pressure swaging bucket, a soleplate for sealing the bucket bottom is arranged at the bottom of the swaging bucket and controlled by a horizontally arranged knife gate cylinder, the middle of the swaging bucket is horizontally provided with a pushing cabin which is in sealed connection and vertical intersection with the swaging bucket; the tail end of the pushing cabin is provided with a pushing head connected with a piston of a pushing cylinder piston, the pushing cabin is provided with an open side which is communicated with the bottom of a feeding hopper, a precompression pushing head is arranged at the other side of the bottom of the feeding hopper and connected with a piston of a precompression cylinder. The precompression cylinder, the pushing cylinder and the main cylinder provided by the invention respectively extrude materials in the three directions of the X axis, the Y axis and the Z axis to effectively improve the compression efficiency of the materials and finally obtain high-density litter cakes while cutting coiled wires and separating litter liquid and have high degree of automation and good economic benefits.

The invention relates to a variable diameter screw propeller, which comprises propeller blades (3) and propeller hubs (4), and further comprises a rod connection mechanism (1), a drive mechanism (2), a propeller cap (5), a slide support mechanism (6) and a locking releasing mechanism (7), wherein the propeller cap (5) is arranged on the propeller hub (4), and provides installation spaces and top supports for the rod connection mechanism (1), the drive mechanism (2), the slide support mechanism (6) and the locking releasing mechanism (7), the drive mechanism (2) and the slide support mechanism (6) are fixed on the propeller hub (4), an output shaft of the drive mechanism (2) is connected with the rod connection mechanism (1), the propeller blades (3) are fixed on a guide outlet end of the rod connection mechanism (1), the bottom of the guide outlet end of the rod connection mechanism (1) is connected with the slide support mechanism (6), the slide support mechanism (6) provides support and guide for the rod connection mechanism (1), the drive mechanism (2) drives the rod connection mechanism (1) to drive the propeller blades (3) along the slide support mechanism (6) to stretch along a diameter direction of the screw propeller so as to change a diameter of the whole screw propeller disc, and the rod connection mechanism (1) is locked through the locking releasing mechanism (7) after the propeller blades (3) stretch in place.

The invention discloses a mollusc muscle. The mollusc muscle comprises two ends and a flexible cavity side wall. An inlet and outlet is formed in the ends or the cavity side wall, the cavity side wallis provided with a paper folding structure, the paper folding structure comprises multiple annular ridges, multiple side ridges and multiple folding surfaces, the annular ridges comprise convex ridges arranged in a protruding manner and concave ridges arranged in a recessed manner, the folding surfaces are arranged between every two adjacent side ridges and the corresponding concave ridges and convex ridges, when the pressure intensity of fluid in a closed cavity changes, the paper folding structure can deform, and therefore the paper folding structure is folded or unfolded in the axial direction of the closed cavity. When the mollusc muscle is used, the pressure fluid is input or drained through the inlet and outlet, the folding surfaces are driven to rotate around the annular ridges tobe opened and closed, the structural strength and the stability of the mollusc muscle are improved through the annular ridges, the side ridges and peaks, the mollusc muscle can stably do linear movement on the premise without an external limiting structure, and large force can be output.

The invention provides a tester for the extension and the recoverability of textiles. The tester comprises a supporting frame used for providing a mounting space, an upper clamp mounted on the supporting frame and used for clamping the upper parts of the textiles, a lower clamp acting on the lower parts of the textiles and exerting load, a length measuring device mounted on the supporting frame and used for measuring the lengths of the textiles, and a timer mounted on the supporting frame and used for recording time for the extension of the textiles. According to the tester provided by the invention, load is vertically exerted on the textiles through the upper clamp and the lower clamp, then the extension lengths of the textiles can be measured through the length measuring device, and the timer is used for timing; the tester for the extension and the recoverability of the textiles is wide in application scope, the testing method is simple and easy, and the data is stable; moreover, the tester provided by the invention has the characteristics of simple operation, high measuring efficiency and high measuring accuracy, and makes up to the shortage of a conventional method.

The invention discloses a rare earth-contained high-manganese cold-rolled steel plate and a manufacturing method thereof. The steel plate comprises the following components in percentage by weight: 0.4-0.8% of C,14-20% of Mn, 0.05-0.15% of RE, P not more than 0.020%, S not more than 0.012%, 1.0-2.0% of Al, 0.01-0.03% of N, and the balance of Fe and inevitable impurities; and the steel plate satisfies the conditions that: Mn+20*C not less than 30% and Al+5*RE not less than 1.8%. The steel plate is produced by a cold rolling-continuous annealing process to obtain austenite with 100% of room-temperature microstructure, reaches the recrystallization fraction of 80-95%, the yield strength of 450-650 MPa, the tensile strength of 950-1100 MPa and the ductility of above 50%, is excellent in splitting delay performance, is ultrahigh in strength, and is suitable for a vehicle structural part and a safety part with complex shapes.

The invention discloses aluminum bronze. The aluminum bronze is characterized by comprising the following components in percentage by mass: 7.0-12.0% of Al, 3.0-7.0% of Ni, 3.0-7.0wt% of Fe, 0-1.0wt%of Mn, 0-1.0wt% of Zn, 0-0.5wt% of Si, 0-0.5wt% of Sn, and the balance Cu and inevitable impurities; and a microstructure of the aluminum bronze contains an alpha phase and a gamma 2 phase. The aluminum bronze has the tensile strength of not less than 740MPa, the yield strength of not less than 400MPa, the ductility of not less than 15% and the hardness of not less than 200HB; when the stretchingcycle times are 107 times, the fatigue strength is 355-400MPa; and the aluminum bronze can satisfy the requirements of structural parts, wear resisting parts, corrosion resisting parts and the like working in such places as mechanical industry, ship and ocean industry, petrochemical industry and electric industry on comprehensive performances of the aluminum bronze.

The invention discloses a hand-push type garden mower. The mower comprises a rack, a hand push rod, a first blade, a second blade, a lifting box body, an adjusting motor, a second driven gear, a limiting plate and a screw rod; a support side plate at the left side of the lifting box body is in threaded connection with the outer circumference of the upper portion of the screw rod and sleeves the outer circumference of the upper portion of the screw rod, a driving motor is fixedly mounted at the bottom of a main box body, the bottom of an output shaft of the driving motor is in driving connection with a rotating shaft, the outer wall of the bottom of the rotating shaft is fixedly provided with the first blade and the second blade separately, the bottom of an electric retractable rod is fixedly connected with the adjusting motor, an output shaft of the adjusting motor is fixedly connected with a driving gear, and the outer circumference of the lower portion of the screw rod is sequentially and fixedly provided with a first driven gear, the second driven gear and the limiting plate from bottom to top. The hand-push type garden mower is simple in structure, convenient to use, good in mowing effect, flexible to use and high in applicability, the heights of the blades are conveniently adjusted, and the remaining amount after mowing can be controlled.

The embodiment of the invention discloses a folding terminal, and belongs to the technical field of folding terminals. The folding terminal comprises a flexible display screen, a first machine body part, a second machine body part, a folding mechanism, a first shell and a second shell, the folding mechanism comprises a fixed box, a first rotating piece and a second rotating piece, and the first rotating piece is hinged to the first side of the fixed box through a first rotating shaft; the second rotating piece is hinged to the second side of the fixed box through a second rotating shaft, and the first rotating shaft and the second rotating shaft are located in the fixed box; the first machine body part and the first rotating piece are fixed in the first shell, and the second machine body part and the second rotating piece are fixed in the second shell; and in the folded state, the first part and the second part of the flexible display screen are attached, and the third part of the flexible display screen is contained in a containing space formed by the folding mechanism, and in the unfolded state, the third part is attached to the folding mechanism. By adopting the folding terminal, the terminal operation convenience of a user can be improved.

The invention discloses a movable type LED illuminating lamp device. A base is arranged at the bottom of a device body, the top of the base is provided with a fixing rod, the top of the fixing rod isfixedly connected with a telescopic rod, a mounting plate is mounted at the top of the telescopic rod, grooves are formed in the two sides of the mounting plate, a rotating shaft is mounted inside thegrooves, a 24H-12 motor is installed at one end of the rotating shaft, the other end of the rotating shaft is provided with a shaft seat, a supporting plate is mounted in the middle of the rotating shaft, an LED illuminating lamp is mounted on one side of the supporting plate, a supporting rod is mounted in the middle of the top of the mounting plate, an electric push rod is arranged in the middle of the supporting rod, a bottom plate is arranged at the top end of the electric push rod, and foot wheels are mounted at the bottom of the base. According to the device, the supporting plate is fixedly connected with the 24H-12 motor through the rotating shaft, the 24H-12 motor can drive the supporting plate to rotate through the rotating shaft, so that illumination angles of the LED illuminating lamp can be adjusted, flexibility and convenience are realized, illumination areas are expanded, meanwhile, manual operation is also avoided, and intelligent degrees of the device body are improved.

The invention relates to the field of suspension devices of vehicles, in particular to a pure-electric distributed multi-wheel mobile platform of intelligent control hydraulic suspension devices. A controller and a speed sensor monitoring the traveling speed of a mobile platform chassis in real time are arranged at the top of the mobile platform chassis, each axle support is provided with a distance sensor and an image sensor, and each electric wheel is provided with a rotation speed sensor for monitoring the rotation speed of the electric wheel in real time. Four completely symmetrically arranged son hydraulic cylinders are arranged outside each electric wheel main hydraulic cylinder, every five hydraulic cylinders are used in cooperation, the hydraulic suspension devices can be elongatedand shortened and incline, each hydraulic suspension device composed of five hydraulic mechanisms can achieve buffering and shock absorption effects on each whole electric wheel and even the whole mobile platform, and the problem that transverse force is generated in the working process of each main hydraulic cylinder, and thus the periphery on each main hydraulic rod slightly shakes is effectively solved.

The invention discloses an opening-and-closing-degree-adjustable grappler. The grappler comprises a hook body, a grappler body, an adjusting mechanism, a pedal and a top buckle, wherein an antiskid layer is arranged at the front end of the hook body; a toothed bar is arranged at the tail end of the hook body; the tail end of the hook body is connected with one end of the grappler body through the adjusting mechanism; the pedal and the top buckle are fixedly arranged at the other end of the grappler body; an antiskid layer is arranged on the top buckle; the pedal is provided with a buckle belt; the adjusting mechanism comprises a connecting body, an adjusting knob, a rack and a gear; the rack and the gear are arranged at the tail end of the grappler body; the gear is arranged in the connecting body; the gear is adapted to the rack; the adjusting knob is coaxially connected with the gear. The opening-and-closing-degree-adjustable grappler is safe, reliable, convenient and flexible in use, the hook body and the grappler body can be quickly adjusted to form the width of a buckling periphery, the grappler is simple in operation and suitable for operation by one hand of a worker, the danger that the worker departs a pole when the worker climbs the pole can be effectively prevented due to the fact that an anti-rotation clamping pin is additionally arranged, and the working safety of the worker who climbs the pole is greatly guaranteed.

The invention discloses a hydro-pneumatic suspension system, a vehicle and a control method of the hydro-pneumatic suspension system. The hydro-pneumatic suspension system comprises a hydraulic pump and at least two suspension oil cylinder sets; the hydraulic pump is connected with an axle pressure oil path and an axle oil return path; each suspension oil cylinder set comprises a left suspension oil cylinder arranged on the left side of the corresponding axle and a right suspension oil cylinder arranged on the right side of the corresponding axle; the left suspension oil cylinders and the right suspension oil cylinders are each provided with a suspension control valve set; and each suspension control valve set comprises a switching control valve block and a switch valve block, wherein theswitching control valve block can connect a rod cavity of the corresponding suspension oil cylinder with the axle pressure oil way and the axle oil return way in a switching mode, and the switch valveblock can connect and disconnect a rodless cavity of the corresponding suspension oil cylinder with a rod cavity of another suspension oil cylinder in the same set. Independent control over the suspension oil cylinders, synchronous control over the coaxial suspension oil cylinders, synchronous control over the suspension oil cylinders on the same side and whole vehicle lifting adjustment can be rapidly achieved, and various driving state requirements can be met.

The invention discloses a novel bucket elevator, which comprises a casing, a frame, a feeding hopper, a bucket frame and a base. A feed hopper is installed on the top, and the hinged seat of the frame is set in rotation with the bottom end of the frame through the pin shaft of the frame. A lifting mechanism is installed on the frame, and the driving motor is driven and connected with the lifting mechanism through a transmission component. The outside of the frame is fixedly fitted with an organic casing, the feed inlet at the bottom of the casing communicates with the outlet at the bottom of the feed hopper through the first flexible channel, and the discharge outlet at the top of the casing is connected with a discharge channel, so The second soft channel is installed on the discharge channel, the lifting height of the hoist of the present invention is convenient to control and adjust, the overall firmness of the hoist is better, it is not easy to shake, and it is closely connected with the grain vacuum drying equipment, ensuring the vacuum drying. Dry works normally.

The invention belongs to the technical field of automatic adjustment of beds for domestic use, and relates to a remote control intelligent electric lift bed. Bed legs are arranged at the lower end of a bottom frame; pulleys are produced on the frame; pulleys are connected by a guide rail; upper frame fixing bracket components are produced at two ends of the guide rail; a head motor and a foot motor are arranged inside a cavity of the bottom frame and the upper frame fixing bracket components; one end of the head motor is connected with a head bracket component; the head bracket component is connected with the upper frame fixing bracket components; the other end of the head motor is connected with the upper frame fixing bracket components; one end of the foot motor is connected with a foot bracket component; the foot bracket component is connected with the upper frame fixing bracket components; the other end of the foot motor is connected with the upper frame fixing bracket components; one end of a front connecting rod is connected with the head bracket component; the other end of the front connecting rod is connected with the bottom frame; one end of a rear connecting rod is connected with a fourth wood plate; the other end of the rear connecting rod is connected with the bottom frame. The remote control intelligent electric lift bed is simple in structure, reliable in principle, high in support strength, simple and convenient in control method, low in preparation cost and friendly to the environment.

The invention discloses a hand-held branch trimming device, and relates to the technical field of branch trimming equipment. The device comprises a bearing structure, the outer wall of the bearing structure is provided with a fastening structure and an extension rod, the upper portion of the bearing structure is provided with a motor, an output shaft end of the motor is provided with a circular cutter, and the lower portion of the bearing structure is provided with a clamping structure. The hand-held branch trimming device has the advantages that a user can stand on an original position to trim trees, and meanwhile the device can also be adjusted for trimming according to the heights of the to-be-trimmed trees.

The invention discloses a wearable flexible auxiliary operating arm, and relates to a flexible operating arm. The wearable flexible auxiliary operating arm comprises a gas chamber cover, a base, an inner spring and three flexible inflatable gas tubes, wherein each flexible inflatable gas tube is a guide tube which is sealed in one end and is open in the other end; the inner spring is arranged on the middle part of the base; the three flexible inflatable gas tubes are arranged in the peripheral direction of the spring; the sealed ends of the flexible inflatable gas tubes abut against the base;a gas chamber which is matched with the flexible inflatable gas tubes is arranged on the gas chamber cover; opening ends of the flexible inflatable gas tubes are fixedly arranged in the gas chamber; and a gas inlet and a gas outlet are formed in the gas chamber. The wearable flexible auxiliary operating arm is flexible in structure, can realize various motion forms, has very good convenience, is convenient to expand, and can be applied to different occasions according to the needs.

The invention discloses a heat shrinkable film production shaping device. The heat shrinkable film production shaping device comprises a supporting frame, a U-shaped plate and a second rotating shaft,wherein the bottom of the U-shaped plate is fixed to the top of the supporting frame; and one end of the second rotating shaft is arranged on the front surface of the U-shaped plate through a bearing. According to the heat shrinkable film production shaping device, a second motor and a draught fan are started, when the second motor is started, a half gear can be indirectly driven to rotate, due to the fact that teeth meshed with the half gear are fixedly connected to the top and the bottom of the inner wall of a movable frame, the half gear can rotate through the meshing effect with the teeth, the movable frame can be indirectly driven to move left and right, a drying nozzle can be indirectly driven to move left and right through a telescopic rod by means of left and right movement of themovable frame, a heat shrinkable film can be blown in a reciprocating mode through cooperative arrangement of the draught fan and an air outlet pipe, the blowing area of the heat shrinkable film is increased, therefore the drying and shaping effect of the heat shrinkable film can be improved, and the quality of later film formation is ensured.

The invention discloses an adjustable display stand for energy-saving material sales. The bottom of a display stand body is provided with a base; a storage cabinet is arranged at the bottom of the interior of the base; the top of the storage cabinet is provided with a control box; Y355 motors are installed at the periphery of the top of the interior of the control box; the top ends of the Y355 motors are fixedly connected with rotating shafts; the tops of the rotating shafts are provided with display discs respectively; lamp holders are installed in the display discs respectively; the top endof each lamp holder are provided with LED lamp beads; light-transmitting glass is installed at the middle of the top end of each display disc; the middle of the top of the control box is provided witha fixing tube; the top of the fixing tube is fixedly connected with a lifting rod; the top of the lifting rod is provided with a mounting block; supporting rods are mounted around the mounting block;and the bottom of the base is provided with casters. According to the adjustable display stand for energy-saving material sales of the invention, the top of the lamp holder is provided with the LED lamp beads; the middle of the top end of the display disc is provided with the light-transmitting glass; and therefore, the projection of light onto displayed energy-saving materials can be facilitated, the aesthetic performance of exhibits can be improved, the brightness of a surrounding environment is increased, and customers can be facilitated to better watch the exhibits.

The invention relates to a skeletal traction acting force device. The skeletal traction acting force device comprises a traction component, an elastic part, a force sensor, an adjusting component used for adjusting the stretching length of the elastic part, a traction signal receiving and transmitting module, a control module and a power supply, wherein the elastic part or the force sensor is connected with the traction component. The control module outputs a control signal according to the comparison result of a traction force actual value feedback signal and a traction force set value input signal received by the traction signal receiving and transmitting module so as to control the adjusting component to adjust the stretching length of the elastic part, and then the force sensor detects that the actual value of traction force borne by the elastic part with the length changed is equal to a set value; meanwhile, the control module outputs a control signal according to an input signal so as to control the adjusting component to keep the acting time period of the elastic part. According to the skeletal traction acting force device, the single or combined skeletal traction acting force and acting time period can be set as needed; besides, continuous adjustment of the skeletal traction acting force can be achieved, the adjustment precision is high, the structure is simple, and operation is convenient.

The invention discloses multi-automobile-type stamping part rapid carrying equipment and a multi-automobile-type mixed production line. The multi-automobile-type stamping part rapid carrying equipmentcomprises a rotating mechanism, a swinging mechanism and a gripper mechanism, wherein the rotating mechanism comprises a fixing platform and a rotating servo motor arranged on the fixing platform, the swinging mechanism comprises a swinging top plate, a swinging bottom plate, a left shear type rocker arm mechanism, a right shear type rocker arm mechanism, a swinging driving mechanism and a stretching and retracting driving mechanism, the swinging driving mechanism comprises a swinging servo motor, a transmission shaft and synchronous rods, the stretching and retracting driving mechanism comprises a stretching and retracting servo motor, a lead screw and a lead screw nut, each shear type rocker arm mechanism comprises two shear type rocking rod units arranged side by side, the tops of theshear type rocking rod units are in key connection with the synchronous rods, and the bottoms of the shear type rocking rod units are hinged to the swinging bottom plate. According to the multi-automobile-type stamping part rapid carrying equipment and the multi-automobile-type mixed production line, the structure is simple, mounting is convenient, workpieces of multiple workpiece feeding tables can be carried according to the translation distances and the lifting heights of different automobile types, the carrying position is accurate, the carrying efficiency is high, and it is guaranteed that carrying operation of the workpieces of the multiple automobile types on the mixed production line is smoothly carried out.

The invention discloses a multifunctional closestool. The multifunctional closestool comprises a closestool body, a water storage box part is arranged on the rear side of the closestool body, a seat ring and a closestool cover are rotationally installed on the portion, on the rear side of a toilet bowl, at the upper end of the closestool body, and a urinal trough with an opening in the front sideis formed in the front portion of the water storage box part; a cover plate capable of blocking the front side of the urinal trough is rotationally connected with the lower end on the front side of the urinal trough, two lateral baffles are symmetrically formed on the two sides of the cover plate, and baffle containing cavities for suitably containing the lateral baffles are formed in the rear side of the urinal trough. Containing grooves extending upwards are formed in the lower ends of the two lateral baffles, hydraulic cylinders are connected between the upper portions of the containing grooves and the lower portions of the baffle containing cavities, and the hydraulic cylinders are driven by the running water pressure to stretch and used for controlling opening and closing of the coverplate. By means of the multifunctional closestool, requirements for urinating of men are met, and the sanitation problems caused when the urine splashes outwards are prevented.

The invention discloses a moving frame for building interior wall construction. The moving frame comprises a supporting plate, four lifting supports and universal wheels, wherein the supporting plate is a rectangular plate, and an I-shaped through hole is formed in the supporting plate; the four lifting supports are arranged on the two sides of the rectangular plate in pairs correspondingly; one end of each lifting support stretches into the I-shaped through hole; the supporting plate and the lifting supports are connected through pull rods; and the universal wheels are fixedly arranged at the other ends of the lifting supports. According to the moving frame, through cooperation of the supporting plate, the lifting supports and the universal wheels, supporting and height adjustment of the supporting plate are achieved, and thus the requirements of different construction heights are met; and meanwhile, through cooperation of the lifting supports and the supporting plate, an integrated structure is formed, carrying is facilitated, meanwhile, a cart is formed under the action of the universal wheels, other objects can be transferred conveniently, and the labor intensity of personnel is relieved.

The invention discloses a space extensible aircraft transformable nose cone provided with nested segmented housings. The space extensible aircraft transformable nose cone is composed of the nested segmented nose cone housings, cross bars and a transmission mechanism of the cross bars, a parallel guide rail rotating mechanism, and a motor screw rod and nut driving device; in whole body deflection and stretching motion process, the mutual nesting of segments of the nested segmented housings can be maintained, the line contact of adjacent nose cone housings is ensured, and the special shape characteristic of the nested segmented housings is capable of improving the nose cone sealing performance greatly, and the reliability of the transformable nose cone is improved. A space extensible structure with a motion freedom of 2 is formed by the nested segmented housings, the cross bar mechanism, and the parallel guide rail rotating mechanism on the side surface; the adoption of the transmissionmechanism is capable of realizing integral body linkage of the segmented housings. The space extensible aircraft transformable nose cone is flexible in transformation, lower in driving, small in nosecone occupied space, and stable in transformation.

The invention discloses a telescopic water pipe. The telescopic water pipe includes a pipe body, a pipe joint and a valve joint; the pipe body comprises an inner pipe and an outer pipe, the inner pipeis located inside the outer pipe, the inner pipe is made of an elastic material, the outer pipe is made of a fabric without elasticity, and the length of the outer pipe is greater than the length ofthe inner pipe; and one end of the pipe body is provided with the pipe joint, and the other end is provided with the valve joint. The telescopic water pipe of the invention is fixed on parts such as afaucet through the pipe joint to make high-pressure tap water flow into the inner pipe, and when a valve is closed, the inner pipe is deformed and elongated due to the pressure of tap water, the diameter of the deformed inner pipe is limited by the outer pipe, thereby achieving elongation of the telescopic water pipe; and when usage of the telescopic water pipe is completed, the inner pipe shrinks due to disappearance of the pressure inside the inner pipe, which drives the outer pipe to be contracted together to achieve withdrawal of the telescopic water pipe, and the telescopic water pipe isconvenient for usage and storage.

The invention relates to a double-motion retracting washing pipe. The double-motion retracting washing pipe comprises a washing pipe, wherein the washing pipe is arranged in a spiral slide groove device; the spiral slide groove device is arranged on a driving device; the driving device is used for driving the spiral slide groove device to stretch out and retract; the spiral slide groove device comprises an outer sleeve, a spiral slide groove sleeve and first stepping motors; the outer sleeve is internally provided with the spiral slide groove sleeve in a sleeving way; the washing pipe is arranged in the spiral slide groove sleeve; the first stepping motors are used for driving the spiral slide groove sleeve to rotate so as to push the washing pipe to stretch out and retract. According to the double-motion retracting washing pipe, the length of the washing pipe is effectively shortened, and the whole length of an electronic toilet lid is shortened; the ceramic adaptability of the electronic toilet lid is improved, and the appearance of a stretching-out pipe is not affected. The two stepping motors can move simultaneously so as to shorten the stretching-out and retracting time of a nozzle. The spiral slide groove is independently used, and the length is lengthened; the inner movement space is not occupied; an inner layout of a product is easy to realize, and the size of the product is reduced.

The invention discloses a level gauge for deformation detection of a high-rise building. The level gauge comprises a round seat, a support frame assembly and a fine adjustment assembly, wherein an instrument head is arranged on the surface of the round seat; detection assemblies are uniformly arranged on the surface of the round seat; a sliding assembly is arranged on the bottom surface of the round seat; a moving assembly is arranged on the sliding assembly; the support assembly comprises side grooves, pin shafts and adjusting grooves; the side grooves are uniformly formed in the circumferential side surface of the round base; the pin shafts are rotationally connected into the side grooves; one end of each adjusting groove is fixedly connected to the circumferential side surface of the corresponding pin shaft; the fine adjustment assembly comprises a bottom groove, a limiting shaft, a sleeve ring, a threaded cylinder, a threaded rod and a connecting base; the bottom groove is formed in the adjusting groove; and the limiting shaft is arranged at the top of the inner side of the bottom groove. The leveling instrument for deformation detection of the high-rise building can be used for precisely adjusting the support frame on an uneven pavement so as to enable the support frame to be in a relatively horizontal state; and at the same time, the level gauge can conveniently move, and the practicability is high.

The invention relates to a hygienic mask formed by active nanoscale melt-blown cloth and production equipment thereof. The hygienic mask comprises a mask body and a tying belt set, second folding parts are longitudinally arranged on the two sides of the mask body, second press-fit parts are arranged on the two second folding parts, and the second press-fit parts are longitudinally arranged and extend to the upper end and the lower end of the mask body; and contraction holes are symmetrically formed in the edges of the two sides of the mask body. The tying belt set comprises an elastic band, aplastic spring buckle and a U-shaped earmuff; a through hole is formed in the middle of the outer side of the U-shaped earmuff; the elastic band is arranged in the U-shaped earmuff in a penetrating manner; the middle of the elastic cord located in the U-shaped earmuff penetrates through the through hole and is sleeved with the plastic spring buckle, one end of the elastic cord sequentially penetrates through the four contraction holes in one side of the mask body in an S shape and are connected with the other end of the elastic cord, the U-shaped earmuff makes contact with the backs of ears ofa user, and pain generated when the mask is worn for a long time is effectively relieved.

The invention discloses a multifunctional writing desk with an adjustable lifting height. The writing desk comprises a writing desk panel and a lifting support device. The writing desk panel is arranged on the lifting support device. The writing desk is characterized in that the lifting support device comprises an upper supporting framework, bottom face supporting transverse legs and inclined supporting legs. The two sides of the upper supporting framework are provided with upper side supporting cross beams, upper sliding grooves are formed in the upper side supporting cross beams, lower sliding grooves are formed in the bottom face supporting transverse legs, the middles of the two inclined supporting legs are crossed and hinged through a pin shaft, the upper ends and the lower ends of the inclined supporting legs are provided with upper sliders and lower sliders respectively, and the inclined supporting legs are installed in the upper sliding grooves of the upper side supporting cross beams through the upper sliders and installed in the lower sliding grooves of the bottom face supporting transverse legs through the lower sliders. A length adjusting device is arranged between the two lower sliders in the lower sliding grooves.