70results about How to "Change the size of the space" patented technology

A teaching question board comprises a first teaching question board; a cavity penetrating through the left and the right is formed inside the first teaching question board; two sliding rails are correspondingly arranged at each of the top and the bottom of the inner cavity of the first teaching question board; a first board frame and a second board frame are movably connected onto the sliding rails; corresponding positions of the tops and the bottoms of the first board frame and the second board frame are connected with pressing blocks through springs; handles are arranged on opposite frame edges of the first board frame and the second board frame; a plurality of clamping holes are formed in corresponding positions of the tops and the bottoms of the sliding rails; a second teaching question board and a third teaching question board are respectively and fixedly connected with one side of the inner wall of the first board frame and one side of the inner wall of the second board frame; a cardan joint is connected with the bottom of the first teaching question board; a telescopic rod is connected with the bottom of the cardan joint; a movable rotating shaft is arranged at the top of the telescopic rod and is fixedly connected with the center of the bottom of the cardan joint; and a thread is arranged below the cardan joint. With the board, the teaching area can be increased according to the actual requirements, and the problem that the area of a question board is insufficient for senior high school students due to the relatively large question quantity is solved.

The invention relates to the technical field of goods storage, and discloses a damp-proof ventilation storage cabinet for commodity and goods storage. The storage cabinet comprises a cabinet body, fixing plates are fixedly installed at the left end and the right end of the cabinet body correspondingly, toothed plates are fixedly installed on the opposite faces of the fixing plates, a supporting plate is movably installed in the cabinet body, and gears are rotatably connected to the left end and the right end of the supporting plate correspondingly. A driving device drives a cam to rotate, thecam passes through the supporting plate in contact with the cam, and drives the supporting plate to move upwards, a guide rod drives a moving block to move on a sliding rod, and then the moving blockdrives an air bag to expand inwards through a connecting rod, the air bag restores to the original state when the cam leaves the supporting plate, and in cooperation with the change of the form of theair bag, air can be sucked in and out, moisture left between the supporting plates can be removed, so the effect of keeping dry is achieved.

The invention relates to an efficient noise reduction exhaust pipe. The efficient noise reduction exhaust pipe comprises a cylinder, an air inlet pipe, an air outlet pipe and a noise reduction pipe; an expansion cavity, a first resonant cavity, a second resonant cavity and a third resonant cavity are formed in the cylinder, the air inlet pipe communicates to the expansion cavity, the air outlet pipe communicates with the third resonant cavity, the noise reduction pipe is arranged in the first resonant cavity, the two ends of the noise reducing pipe communicate with the expansion cavity and thethird resonant cavity, and a first outlet hole is formed in the noise reduction pipe; one part of the air outlet pipe extends into the second resonant cavity from the third resonant cavity, and is provided with a second outlet hole, and the other part penetrates through the third resonant cavity to the outer side of the cylinder from the second resonant cavity. In the treatment process of gas through the expansion cavity, the first resonant cavity, the second resonant cavity and the third resonant cavity, the motion stroke of noise is greatly prolonged, the noise transmission time is shortened, and the noise reduction effect is improved.

The invention discloses a peristaltic pump head. The pump head comprises a front baffle, a rear baffle and a roller component, the front end and the rear end of the roller component are rotationally connected with the front baffle and the rear baffle respectively, one or more pipe pressing cards are arranged between the front baffle and the rear baffle, the pipe pressing piece comprises a fixing part and a pipe pressing part, the elastic hose is located between the pipe pressing part and the roller component, a fixed side arm is arranged on the two sides of the fixed part, two supporting columns are arranged between the front baffle and the rear baffle, the fixed side arms on the two sides are clamped on the two supporting columns respectively, and a spanner used for opening the fixed sidearm is further arranged between the front baffle and the rear baffle. The elastic hose is limited in the peristaltic pump through the pipe pressing clamping piece, the pressing pipe clamping piece isclamped and fixed with the front baffle and the rear baffle, no redundant detachable parts are arranged, when the number of the pipe pressing clamping pieces is large, the fixing side arm of each pressing pipe clamping piece can be pried by a spanner at one time, and the disassembling and assembling are more rapid and more labor-saving.

The invention relates to an electric-controlled bar-shaped candy primary forming device. The electric-controlled bar-shaped candy primary forming device comprises a man-shaped frame, an opening and closing mechanism, an electrical-controlled frame body mechanism, moving mechanisms and a special-shaped washboard, wherein the electrical-controlled frame body mechanism comprises two L-shaped frame bodies which are oppositely arranged; each L-shaped frame body comprises a horizontal section and a vertical section which are mutually perpendicular to each other; the end parts of the horizontal sections of the two L-shaped frame bodies are detachably connected; and each moving mechanism is arranged at the bottom end of the corresponding horizontal section, and comprises a difference rod, electricrollers under two ends of the corresponding difference rod and a driving module for driving the corresponding electric rollers to move. The electric-controlled bar-shaped candy primary forming devicedisclosed by the invention is novel in structure, convenient and high-efficiency to operate, accurate to control, and high in automation degree, and has the characteristics of being neat in charge, flexible in movement, convenient to assemble and disassemble, quick to form, quick to cool, and the like; the electric-controlled bar-shaped candy primary forming device can be integrally and randomlymoved as needed, and the size of the space of a primary forming cavity can be regulated according to different requirements, so that the processed bar-shaped candies are diversified and rich in shape,and free from edge defects.

The invention provides an indoor space adjusting wall based on 3D module splicing.The indoor space adjusting wall comprises nine sub wall bodies shaped like a rectangle, the left end faces and the right end faces of the nine sub wall bodies are connected through fixing cavities and connecting columns, the left side end faces and the right side end faces of three of the sub wall bodies are provided with the connecting columns and the fixing cavities, and only one of the left side face and the right side face of each sub wall body in the other six sub wall bodies is provided with the connecting column and the fixing cavity; the upper end faces and the lower end faces of the nine sub wall bodies are connected through hinges, the hinges are fixed to the sub wall bodies through bolts, and the upper end faces of the three uppermost sub wall bodies in the nine sub wall bodies are provided with suction cups.The wall is formed by splicing the sub wall bodies, can be assembled and used at any time and is simple and convenient to use, the sub wall bodies are connected through the hinges, and free folding can be achieved.

The invention discloses a clamp locating device for a lathe. The clamp locating device comprises a connector, a clamping port, clamping jaws and a movable block, wherein the connector is internally provided with a workpiece socket, and the right side of the connector is provided with a cone. The left end of the cone is provided with a circular chamfer located at the right end of the workpiece socket, the upper end of the clamping port is provided with a circumferential tooth, helical teeth are arranged above the clamping jaws and below the circumferential tooth, and anti-slip teeth are disposed under the clamping jaws. Connecting rods are connected to the right side of the movable block, and an operating panel is mounted on the right sides of the connecting rods. Compared with the existingordinary lathe clamp, the clamp locating device has the advantages of simple and reasonable structure, easy manufacture, low cost and wide application range. By means of the clamp locating device, production of batch parts can be uniform in process standard and good in size consistency. At the same time, the range of machined parts is greatly increased, and the practicality is improved.

The invention discloses a dough splitting device, which includes a feeding device, a base, a conveying device and a dough splitting mechanism; the feeding device is installed on the base; the dough splitting mechanism is rotationally connected with the feeding device; the conveying device is arranged below the dough splitting mechanism; the dough splitting mechanism includes a dough splitting cylinder rotating along the axis of the dough splitting mechanism, movable columns and cylindrical through-holes; the cylindrical through-holes are arranged side by side in the curved surface of the doughsplitting cylinder; the movable columns are inserted in one ports of the cylindrical through-holes; and when the cylindrical through-holes are aligned with the feeding opening of the feeding device,dough is fed into the cylindrical through-holes from the feeding device, the movable columns are extruded outwards from the cylindrical through-holes, and when the cylindrical through-holes directly face the conveying device, under the action of gravity, the movable columns press the dough in the cylindrical through-holes to the conveying device. The invention has the advantages of equal weight ofsplitted dough, low equipment cost and wide application range.

The invention relates to transportation and fresh-keeping equipment, in particular to anti-extrusion vegetable transportation and fresh-keeping equipment. The anti-extrusion vegetable transportation and fresh-keeping equipment comprises a containing mechanism and a pair of moisturizing mechanisms installed on the side face of the containing mechanism. The containing mechanism comprises a bottom supporting device, the bottom supporting device comprises a plurality of supporting columns, sliding grooves are formed in the supporting columns, first springs are arranged at the bottom ends of the sliding grooves, fixed containing plates are arranged between the supporting columns, and an adjusting device is arranged at the top ends of the supporting columns. The adjusting device comprises sliding pieces, the bottom ends of the sliding pieces are connected with the sliding grooves in a sliding manner, and a vegetable placing plate is arranged at the top ends of the sliding pieces. Through the arranged adjusting device, when vegetables are transported, the vegetables are placed on the vegetable placing plate and the fixed containing plates, the size of the space between the vegetable placing plate and the fixed containing plates is changed by moving the vegetable placing plate upwards or downwards, the situation that the vegetables are squeezed and damaged is avoided, meanwhile, the transportation space can be saved to the maximum extent, and the transportation cost is reduced.

The invention provides a bus platform. The bus platform includes a bottom plate, a front enclosing plate, a rear enclosing plate and a lateral enclosing plate; the front enclosing plate, the rear enclosing plate and the lateral enclosing plate are arranged on the bottom plate; a guiding rail is arranged on the connection parts between the bottom plate and the front enclosing plate and the rear enclosing plate, and a middle moving panel is arranged on the guiding rail and can slide along the guiding rail; a gravity sensing device is arranged on the bottom plate, the gravity sensing device sendsthe staff number information to a control system box which is connected with a motor arranged on the middle moving panel, and according to the staff number information, through the motor, the runningpower of air adjusting equipment and the sliding of the middle moving panel are controlled. According to the bus platform, the space of a platform can be adjusted, and the energy consumption of the platform is saved.

The invention relates to a medicine storage tank of an automatic traditional Chinese medicine dispensing machine. The medicine storage tank comprises a tank body and a discharge device. The tank body is provided with a medicine inlet. The bottom of the tank body is provided with a medicine outlet. The discharge device comprises a motor and a roll shaft connected with an output shaft of the motor. The motor is connected with a servo controller. The roll shaft is arranged at the medicine outlet. The surface of the roll shaft is provided with a plurality of tooth blades. The outer ends of the tooth blades selectively abut against the inner wall of the medicine outlet. Airbags are arranged between the tooth blades. The outer surfaces of the airbags are partially pasted onto the surfaces of the tooth blades and the surface of the roll shaft. A ventilation channel is formed in the roll shaft and communicates with inlets of the airbags. One end of the roll shaft is provided with a valve and a ventilation rotary connector. The medicine storage tank has the following obvious advantages that the roll shaft and the tooth blades are of the same specifications; before use, the size of the space between the tooth blades is changed by regulating the size of the airbags so as to meet the requirement for different medicine amounts, and the trouble of manufacturing different specifications of roll shafts and tooth blades is avoided.

The invention discloses automatic shoveling and transporting equipment structurally comprising a small shovel, a small shovel connecting rod, a vehicle body, a cockpit, a connecting frame, wheels anda fork shovel; and the small shovel is mechanically connected with the small shovel connecting rod, the small shovel connecting rod is connected with the vehicle body, the vehicle body is provided with the cockpit, the cockpit is connected with the connecting frame, the connecting frame is mechanically connected with the fork shovel, and the fork shovel and the small shovel are oppositely arranged. The automatic shoveling and transporting equipment has the following advantages that a pushing board is arranged in a shovel groove for changing the size of the space in the shovel groove, thereby pushing out the sandy soil in the shovel groove; the sandy soil inside the shovel groove can be poured out without the need of rotating the whole fork shovel until the opening of the whole fork shovelfaces downward; and arc boards are arranged on a shovel head, so that arcs are formed among shovel teeth for guiding the sandy soil, the sandy soil can be output more conveniently, further, wear of arotating part of the fork shovel can be reduced, and the service life of the automatic shoveling and transporting equipment is prolonged.

The invention provides a multi-distance detection device for a depth camera, and the device comprises the depth camera which is used for projecting a light beam and receiving the light beam reflectedby a screen; a plane mirror used for reflecting the light beam projected by the depth camera and increasing the projection optical path of the light beam; wherein the screen is a crop plane and is used for receiving the light beam projected by the depth camera or receiving the light beam reflected by the plane mirror and reflecting the light beam, so that the depth camera completes detection; anda shell used for placing the depth camera, the plane mirror and the screen. The invention also provides a multi-distance detection method of the depth camera. According to the multi-distance detectiondevice and method for the depth camera, through the reflection principle of the plane mirror, the plane mirror is placed in the detection device, the light beam projection optical path is increased,and the detection distance can be increased without changing the space size of the device.

The invention discloses an inflation heat sealing device, and relates to the technical field of packaging equipment. The inflation heat sealing device comprises a film placing rod assembly and a filmtransmission assembly, wherein the film placing rod assembly and the film transmission assembly are arranged on a substrate; a film guide assembly is arranged between the film placing rod assembly andthe film transmission assembly; the film guide assembly comprises a film guide rod, and a roll film which sleeves the film placing rod assembly is conveyed by the film transmission assembly after passing through the film guide rod; and during the change of the roll film on the film placing rod assembly from large to small, the film guide rod rotates along with the change of the roll film to adjust acting force on the film, so that the film is always conveyed at a constant speed under the condition that pulling force Fpull2 of the film transmission assembly on the film is unchanged. The tension formed by the film guide rod of the inflation heat sealing device and the film can compensate for the gradually decreased friction force of the film placing rod assembly on the film caused by the change of the size of the roll film in the film feeding operation process, so that the front tension and the back tension are always consistent in the film conversion process from large to small, and the operation effect is good.

The invention relates to a bare conductor manual traction erection auxiliary tool which comprises a winding roller used for winding a bare conductor, baffles are rotatably connected to the two ends ofthe winding roller, a guide device is arranged at the wire outlet end of the winding roller, and the guide device comprises a first connecting rod and two guide rings allowing the bare conductor to penetrate through. One end of the first connecting rod is connected with the baffles in the direction perpendicular to the axis of the winding roller, a wire outlet chain wheel device is arranged at the position, below the guide device, of the baffle in the length direction of the first connecting rod, and the wire outlet chain wheel device comprises chain wheels, a chain, a second connecting rod and elastic clamping pieces. The elastic clamping pieces are provided with clamping grooves for clamping the bare conductor. The second connecting rod is arranged in the direction parallel to the length direction of the first connecting rod and connected with the baffles, the two chain wheels are arranged between the two guide rings, the chain is arranged on the two chain wheels in a sleeving and meshing mode, and the elastic clamping pieces are arranged on the outer ring of the chain side by side in the length direction of the chain. The tool has the effect of reducing the situation that people are hurt by burrs when the bare conductor is dragged.

The invention discloses a microwave oven. The microwave oven comprises a microwave oven body, a performance-adjustable frequency selection surface is arranged in the microwave oven body, the frequency selection surface is close to the side wall in the microwave oven body, and a cavity in the microwave oven body is divided into a heating area and an electric field boundary change area by the frequency selection surface. The control system on the adjustable frequency selective surface is connected with a controller of the microwave oven body; and a to-be-heated object containing table and a power input port are arranged in the heating area. The frequency selective surface is applied to the microwave oven, and the frequency selective surface is in a transmission or reflection state for microwaves by periodically changing the filtering characteristic of the frequency selective surface, so that the boundary of a microwave field is changed, the distribution state of an electric field in the microwave oven is changed, and the purpose of improving the heating uniformity is achieved.

The invention provides an indoor lifting wall spliced based on a 3D module. The indoor lifting wall comprises sub-walls. The nine sub-walls are arranged and are arranged to be rectangular. The left end faces and the right end faces of the nine sub-walls are connected through fixing cavities and connecting columns. Connecting columns and fixing cavities are formed in the left side end faces and the right side end faces of the three of the nine sub-walls. Only one side face of the left side and the right side of each of the other six sub-walls is provided with a connecting column and a fixing cavity. Locking plates are arranged on the upper end faces and the lower end faces in the fixing cavities. The locking plates and the upper end faces and the lower end faces of the fixing cavities are connected through springs. The upper end faces and the lower end faces of the nine sub-walls are connected through hinges. The hinges and the sub-walls are fixed through bolts. Suction cups are arranged on the upper end faces of the three sub-walls, located at the uppermost portion, of the nine sub-walls. Permanent magnets are embedded in the front end faces and the rear end faces of the three sub-walls, located at the bottommost portion, of the nine sub-walls. Iron pieces are embedded in the front end faces and the rear end faces of the rest of the six sub-walls.

The invention discloses an explosion-proof evaluation system for power equipment. An explosion-proof detection assembly is mounted on the top surface of a bottom plate, an adjusting cover is slidably mounted between two sliding side covers on the top surface of the bottom plate, a detection box is mounted in the middle of the side surfaces of the sliding side covers, and an inner probe wire is mounted at the bottom end of an outer probe wire on the detection box; and semicircular sealing blocks are hinged to the two ends of the threading hole, air outlet holes are evenly formed in the inner wall of an n-shaped pipe, a positioning supporting assembly is installed on the top face of the bottom plate, an electric push rod is installed in the middle of the installation plate, and rubber pipes are evenly bonded to the opposite inner walls of the adjusting cover and the sliding side cover. During detection, the outer probe wire is connected with a sensor to detect the gas concentration outside the electrical equipment, the inner probe wire is connected with a sensor to detect the gas concentration inside the electrical equipment, a fan drives the gas to flow, the n-shaped pipe guides the gas, and the gas is discharged from the uniformly distributed gas outlet holes, so that the internal gas is more uniformly distributed, the actual situation is better met, and the detection is more accurate.