32results about How to "Easy and fast connectivity" patented technology

The invention relates to a rotating and swinging joint module of a robot of single degree of freedom. The joint module is provided with a rotation degree of freedom, and the joint spindle thereof is vertical to the connection axis of the module to form swinging movement. The joint module is matched with a corresponding control system to realize movement or moment control, and joint parts and limiting position are detected by a Hall switch. The rotating and swinging joint module mainly comprises a servo motor and a photoelectric encoder assembly, a disk-type harmonic wave reducer assembly, a harmonic wave reducer output shaft, a motor base, a joint base, a bearing, a shaft cover, an end cover, a pair of bevel gears, a joint spindle and the like, wherein a motor shaft is connected with the wave generator of the harmonic wave reducer through the shaft sleeve, and the output rigid wheel of the harmonic wave reducer is fixedly connected with an output disk; a pair of bevel gears is arranged between the output disk and the joint spindle; the joint spindle is connected with a joint oscillating piece by a trapezoidal key to finally realize movement and power transmission. The module has compact structure and is convenient to connect with other modules or parts and can be combined and built into various robots or other electromechanical systems.

The invention discloses a tubular furnace air-path structure of a carbon sulfur analyzer. The tubular furnace air-path structure comprises an oxygen source, an air chamber, a pneumatic valuator, a flowmeter, a drying device, a dust removal device, a tubular furnace, an oxygen control valve, an air inlet control valve, an air outlet control valve, a washing control valve and an exhaust port. The tubular furnace air-path structure is provided with the washing control valve, before the tubular furnace air-path structure is used every time, the washing control valve is opened first, then the air inlet control valve is closed, the oxygen control valve is opened to introduce oxygen into the air chamber, the residual air generated in the air chamber during the previous application of the air-path structure is washed, and when the tubular furnace air-path structure is in use, the washing control valve is closed, so that the analysis precision is guaranteed by washing the air chamber before the application.

The invention provides a multifunctional large-torque integrated robot joint which comprises a direct-current servo motor, a belt wheel set, a gear set, a hollow harmonic reducer, a hollow output shaft, a hollow encoder and a hollow output shaft end bearing. The belt wheel set comprises a large belt wheel and a small belt wheel. The gear set comprises a small gear and a large gear. The direct-current servo motor drives the small belt wheel. The small belt wheel drives the large belt wheel. The large belt wheel is connected with the small gear through a belt wheel shaft. The small gear is engaged with the large gear. One end of the hollow output shaft is connected with the large gear and the hollow encoder, and the other end of the hollow output shaft is connected with the hollow harmonic reducer and an inner ring of the hollow output shaft end bearing. In the multifunctional large-torque integrated robot joint, due to the optimization and combination of the speed reduction ratios of three levels of speed reduction, application requirements in different places and different fields can be met.

The invention relates to the technical field of food detection. The invention further discloses food detection sampling equipment. The equipment comprises a mounting base and a sampling disc, a supporting column is fixedly mounted at the bottom of the mounting base; the front side and the rear side of the top of the mounting base are each fixedly provided with two mounting stand columns. A mounting top plate is fixedly mounted at the tops of the mounting stand columns; a conveying assembly located between the mounting stand columns in the front side and the rear side is fixedly mounted at thetop of the mounting base. A fixing structure is fixedly mounted on the conveying assembly; a receiving frame located on the left side of the conveying assembly is movably mounted at the top of the mounting base, a supporting frame is fixedly mounted at the top of the mounting top plate, a rotating motor is fixedly mounted at the top of the supporting frame, and a rotating rod with one end penetrating through and extending to the bottom of the mounting top plate is fixedly mounted at an output shaft of the rotating motor. The food detection and sampling equipment realizes centralized sampling and detection of large-batch food, and is higher in sampling efficiency and more convenient to use.

The invention provides a card device having a fingerprint identifying function, and a corresponding charging device thereof. A fingerprint acquisition unit acquires a fingerprint image of a finger pressed on the fingerprint acquisition unit; a fingerprint identifying and processing unit stores and compares the acquired fingerprint, and selectively activates a control signal output unit according to a comparison result; the control signal output unit receives an activation instruction and outputs a control signal to the outside; the card device also comprises a chargeable battery adapted to the thickness of the card device and used for supplying power to the fingerprint acquisition unit, the fingerprint identifying and processing unit and the control information output unit; and the chargeable battery has or is connected with a smart card universal contact interface module used as a charging interface. The combination of a fingerprint identification system and a traditional card device is realized, the safety of the system is guaranteed, and an active battery power supply system working in an active working mode is adopted, so the card device has improved reliability and stability, allows a user to charge in a plug-in manner, and is simple and fast.

The invention discloses a rice noodle making device, which is characterized in that the heating device adopts a combination of a heating cylinder, an electromagnetic heating coil and a heat insulation sleeve; the heating cylinder is provided with a heat storage cavity surrounding an extrusion channel and stores heat-conducting oil; the heat insulation sleeve It is located on the periphery of the heating cylinder, and the electromagnetic heating coil is set in the heating cavity formed between the heat insulation sleeve and the heating cylinder; the screw extruding rod extends into the extrusion channel from the right side of the heating cylinder; the rice noodle forming component is set at the left end of the heating cylinder And communicate with the extrusion channel. The advantages are: compact and scientific structure, safe and reliable work, long service life, short production cycle, high degree of automation, and guaranteed rice noodle production. It has the characteristics of small size, small area occupied by the production site, energy saving and environmental protection; convenient and fast maintenance, very convenient for assembly and disassembly and cleaning; Good, the powder is not sticking.

The invention relates to an electric tool system adapted to various applications. The electric tool system comprises more than one electric tool, a controller and a cable for connecting the tool and the controller; the tool comprises a working head, a motor, an identification unit and a quick-release connector; the controller comprises a power supply unit, a driving unit and a control unit; more than one motor control strategy matching the tool types is built in the driving unit; the controller also comprises a program executing the following steps that: a control unit in the controller detects the identification unit in the tool to obtain tool type information; the driving unit selects the motor control strategy corresponding to the tool type; the control unit in the controller monitors control signals from the electric tool; and the driving unit sends signals for startup, speed regulation, reversal or shut-down to the motor according to the motor control strategy. According to the scheme of the invention, a plurality of electric tools can share one controller in different times, and thus the cost can be saved.

The invention discloses an ecological purifying system for a pond water body. The ecological purifying system for pond water quality comprises a shading net, a floating island and terrestrial plants, wherein the shading net is used for planting vine floating plants, the floating island is used for planting plants which cannot grow in a floating mode, traction ropes are tied to the two sides of the shading net, and a plurality of seedling growing pots are arranged on the floating island. A biological floating bed technology based on a floating bed plant system disclosed by the invention has multiple advantages of small investment, easiness to manage, no environment risk, good economical effect and the like, so that the biological floating bed technology can attract attention and has wide application prospect in aquaculture water body restoration. Controlling culture water body pollution, maintaining water body ecology balance and achieving water body virtuous circle are imperative; thus, the ecological floating bed technology has important theoretical and practical significance in healthy development of Chongqing aquaculture industry and sustainable utilization of resources.

The invention discloses a pressure bearing device suitable for a pressurized coring tool, which includes a pressure bearing assembly and a pin component, wherein the pressure bearing assembly includes a pressure bearing piston and a pressure bearing sleeve arranged on the pressure bearing piston in a sleeving manner; the pin component includes a shear pin; the upper end of the pressure bearing piston is limited on a pressurized connector in a hexagonal sleeve through a pressure bearing steel ball, and the lower end of the pressure bearing piston is a connecting end connected with a rotary assembly; the pressure bearing sleeve is fixedly connected with the pressure bearing piston through the shear pin; the lower end of the pressure bearing sleeve is limited on a short joint of an outer cylinder; and sand discharge holes and flow channels communicated with an inner chamber of the pressure bearing piston are arranged at the upper end of the pressure bearing piston. The pressure bearing device solves the problem that the conventional pressurized coring tool damages the performance of the outer cylinder as a pin penetrates through the outer cylinder, and achieves the purpose that the structure and performance of the outer cylinder are not damaged.

The invention discloses an elevator door lock meshing length measuring device and method. The elevator door lock meshing length measuring device comprises a bottom plate, a fixing mechanism, a controlindication module and a measuring component; the fixing mechanism is arranged on the front end surface of the bottom plate and is used for fixedly connecting the rear end surface of the bottom platewith a landing door of an elevator; the control indication module is arranged on the front end surface of the bottom plate and is used for detecting and displaying the on-off condition of a door lockloop of the landing door; and the measuring component is arranged on one side of the front end surface of the bottom plate, can move up and down relative to the bottom plate, and is used for obtaininga meshing length numerical value of the landing door. According to the elevator door lock meshing length measuring device, the measuring device can be conveniently and quickly fixedly connected to orseparated from the landing door, the control indication module can display the on-off state of the door lock loop, the measurement result is guaranteed to be accurate, and the measuring component canaccurately read the meshing length of the landing door, and thus the use is convenient, and the measurement precision is high.

The invention discloses a platform construction system. The platform construction system comprises a keel, a cover board and a frame, the frame is fixed to the keel and comprises a plurality of framestrips, and at least one of the left end face and the right end face of every frame strip is inclined or curved. The platform construction system has the advantages of cyclic utilization, good environment friendliness, convenience and quickness in mounting and demounting, high accuracy in mounting and positioning of components, good decoration effect and capability of avoiding reverse mounting ofthe structural components.

A Novel internet-of-things server power supply device comprises an installation and fixing base fixedly installed in a cabinet body and a power supply body configured to be cooperatively connected with the installation and fixing base, a sealing gasket is applied and arranged at the end face of the bottom portion of the installation and fixing base, the surface area of the sealing gasket is equalto the bottom area of the installation and fixing base, the end face of the bottom portion of the installation and fixing base is internally provided with a recessed groove, a first hole groove is arranged at the internal portion, of the installation and fixing base, at the upper side of the recessed groove, a second hole groove extended to the right side is arranged at the internal portion, of the installation and fixing base, at the upper side of the first hole groove, a third hole groove extended left and right is arranged at the internal portion, of the installation and fixing base, at theright side of the first hole groove, the extended tail end of the top portion of the third hole groove and the bottom portion of the extended tail end of the right side of the second hole groove arelocated at opposite positions, the extended tail end of the bottom portion of the third hole groove is located at the internal portion, of the installation and fixing base, at the right side of the recessed groove, and a first slide block is in sliding fitting connection with the internal portion of the first hole groove.

The invention discloses a combined-type power transformation cabinet, and the cabinet comprises a high-voltage cabinet, a transformer cabinet and a low-voltage cabinet, which are arranged in a line. Each cabinet body is composed of a frame and a cabinet plate, and the interior of each cabinet body is provided with a high-voltage circuit module, a transformer circuit module and a low-voltage circuit module, wherein each circuit module is connected by a wire. Longitudinal frames at the joint between the two cabinet bodies adopt L-shaped vertical columns, and the opposite vertical surfaces of theL-shaped columns of the two cabinet bodies are each provided with a through hole, wherein the interior of each through hole is provided with a shaft sleeve. The interior of the shaft sleeve of one cabinet body is provided with a connecting rod, and the interior of the shaft sleeve of the other cabinet body is slidably provided with a connecting shaft, wherein one end of the connecting shaft is detachably connected with the connecting rod, and the other end is set as a worm. The cabinet is convenient and quick in installation and disassembly, is less in consumed time, and is high in work efficiency.

The invention discloses a fan-shaped construction module. The module comprises a first section bar, a second section bar and a connection section bar located between the first section bar and the second section bar. The connection section bar is connected to the first section bar and the second section bar. One end of the first section bar is connected to one end of the second section bar. The first section bar and the second section bar are provided with a connection component used for making the fan-shaped construction module be connected to an adjacent construction module. The invention also discloses a construction system. The construction system comprises the fan-shaped construction module and a standard construction module. The module and the system have the advantages that the module and the system can be recycled, environmental protection performance is good, dismounting is fast and convenient, installation and positioning are accurate and an error is small, construction efficiency is high, the fan-shaped construction module is simply made and field fabrication is not needed.

The invention relates to the technical field of grinding machine tools, and discloses a rapid connecting structure of a grinding disc of a grinding machine tool. The rapid connecting structure comprises a fixing block and a grinding disc body, wherein a motor is fixedly installed in the middle of the right side face of the fixing block; a rotating shaft A is transversely and rotationally arranged in the middle of the motor; the rotating shaft A transversely and rotationally penetrates through the middle of the fixing block; a connecting groove is formed in the middle of the left side face of the fixing block; a connecting sleeve is inserted into an inner cavity of the connecting groove in a sliding mode; a transmission shaft transversely and rotationally penetrates through the middle of the connecting sleeve; the outer wall of the transmission shaft is sleeved with the grinding disc body; and a rotating shaft groove is formed in the middle of the right side face of the transmission shaft. According to the rapid connecting structure, a pull rope is pulled out of an inner cavity of a limiting sliding groove in the rotating process of an annular gear, at the moment, the pull rope can drive a connecting pin to be pulled out of an inner cavity of a connecting pin hole, after the annular gear is reversely rotated, a spring can push the connecting pin into the inner cavity of the connecting pin hole through elastic force, so that the stability of the grinding disc after connection is effectively improved, and meanwhile, the grinding disc is more convenient and faster to connect and disassemble.

The invention discloses a constructing module. A module frame is formed by sectional materials. Two opposite sectional materials of the module frame are separately provided with a locating pin part and a locating pin containing part. The locating pin part comprises a pin head portion and a pin rod portion which are connected, and the locating pin containing part is provide with a groove or a holefor the locating pin part to be inserted. When a locating pin part of a constructing module is inserted into a locating pin containing part of another constructing module, the constructing module is prevented to be in the direction which is different from the direction in which the locating pin part is inserted into the locating pin containing part and away from another constructing module. The constructing module has the advantages that the constructing module can be recycled repeatedly, the environmental protection property is good, the disassembly and assembly is fast and convenient, and the error of installation and positioning is small.

The invention belongs to the technical field of roller structures, and particularly relates to a high-strength escalator roller. The high-strength escalator roller comprises a roller shaft, a roller inner ring arranged on the roller shaft, roller brackets, a roller outer ring, a clamping disc unit, a connecting column unit and an electromagnet unit, wherein the clamping disc unit is arranged on the roller inner ring and is connected to the end face of the roller shaft in a clamped mode, the connecting column unit is arranged on the clamping disc unit and is used for being connected with the roller inner ring and the roller shaft in an inserted mode, and the electromagnet unit is arranged on the clamping disc unit and is used for fixing the connecting column unit by magnetic attraction. According to the high-strength escalator roller, the clamping disc unit, the connecting column unit and the electromagnet unit are arranged to achieve the purpose of high-strength connection between theroller and the roller shaft. The high-strength escalator roller has the advantages of simple and effective structure, convenient and quick operation of connection and connection-removing and high connection strength.

A rapidly-connected isolation device comprises a stand column cover, a stand column, magnet sleeves, permanent magnets, chains and a base and is characterized in that a magnetic metal barrel is arranged below the stand column cover, and limiting rings are arranged on two wide faces of the magnetic metal barrel; through holes are formed in the upper end of the stand column, and limiting strips are arranged in an inner cavity of the stand column; after the magnetic metal barrel is placed in the inner cavity, the circle centers of the limiting rings and the circle centers of the through holes are all located on the same straight line; a loop is arranged at one end of each magnet sleeve, and each permanent magnet is embedded in the other end of the corresponding magnet sleeve; the chains are connected with the loops; and the base is fixed to the lower face of the stand column. After the magnet sleeves are placed in circular grooves formed by the through holes and the limiting rings, the permanent magnets can be attracted to the magnetic metal barrel. The rapidly-connected isolation device is particularly suitable for places where the tourist flow is large and isolation passageways formed by the chains and the stand columns need to be adjusted by guide personnel at any time.

Disclosed is novel intelligent traffic road monitoring equipment. The novel intelligent traffic road monitoring equipment comprises an upper shell and a lower shell matched and connected with the upper shell; an inserting-connecting groove is formed in the bottom end plane of the upper shell; a first cavity is formed in the upper shell on the upper side of the inserting-connecting groove; a secondcavity which extends rightwards is formed in the upper shell on the upper side of the first cavity; a third cavity which extends up and down is formed in the upper shell on the right side of the first cavity; the extension tail end on the top of the third cavity and the bottom of the extension tail end on the right side of the second cavity are positioned in relative positions; the extension tailend at the bottom of the third cavity is positioned in the upper shell on the right side of the inserting-connecting groove; a first sliding block is glidingly matched and connected in the first cavity; a first rotary shaft which extends left and right is arranged in the second cavity; and a second rotary shaft which extends up and down is rotationally matched and connected in the upper shell between the second cavity on the left side and the first cavity.

The invention relates to a hoisting tool for a prefabricated grillage beam. The hoisting tool for the prefabricated grillage beam is characterized in that the hoisting tool comprises a hoisting shaft and a hoisting plate; one end of the hoisting plate is fixedly connected with one end of the hoisting shaft, and the other end of the hoisting plate comprises a connecting hole. The invention further relates to a hoisting method for the prefabricated grillage beam. According to the hoisting method for the prefabricated grillage beam, the grillage beam is horizontally and obliquely hoisted to a dam body by means of the hoisting tool. According to the hoisting tool and the hoisting method for the prefabricated grillage beam, the novel hoisting tool is used for hoisting the prefabricated grillage beam, and the problems that in the prior art, a steel wire rope is used for binding the grillage beam, the bound grillage beam is difficult to hoist, the steel wire rope is difficult to untie, and the construction efficiency is low are solved; in addition, the hoisting tool can be used for hoisting and can also be used for oblique hoisting, so that on-site slope protection construction is convenient and rapid, and accordingly the slope protection construction efficiency is greatly improved; furthermore, the safety of slope protection construction is greatly improved.

The invention provides a material pressing device and an edge sewing machine with the same. The material pressing device comprises a first pressing frame, a second pressing frame, and a clamping mechanism, wherein the clamping mechanism comprises a first clamping part and a second clamping part, the first clamping part is arranged on one of the first pressing frame and the second pressing frame, the second clamping part is arranged on the other one of the first pressing frame and the second pressing frame, the first clamping part can be clamped with or separated from the second clamping part,under the condition that the first clamping part and the second clamping part are clamped, the first pressing frame and the second pressing frame are connected, and under the condition that the firstclamping part and the second clamping part are separated, the first pressing frame and the second pressing frame are separated. According to the technical scheme, the problem that in the prior art, apressing frame of a pressing device is inconvenient to replace can be solved.

The invention provides a novel electric vehicle infrastructure device, which comprises an attachment seat and a charging head, wherein the attachment seat is fixedly arranged on the end surface of theupper left side of a charging pile body; the charging head is used for being connected with the attachment seat in a matching manner; a base is fixedly arranged on the bottom end surface of the charging pile body; a recessed groove is arranged in the bottom end surface of the attachment seat; a first hollow cavity is arranged in the attachment seat at the upper side of the recessed groove; a second hollow cavity which extends towards the right side is arranged in the attachment seat at the upper side of the first hollow cavity; a third hollow cavity which extends up and down is arranged in the attachment seat at the right side of the first hollow cavity; the bottoms of an extended tail end at the top of the third hollow cavity and the extended tail end at the right side of the second hollow cavity are located at the opposite positions; the extended tail end at the bottom of the third hollow cavity is located in the attachment seat at the right side of the recessed groove; a first sliding block is connected in the first hollow cavity in sliding fit; and a first rotary arm which extends from left to right is arranged in the second hollow cavity.

The invention discloses a multi-voltage-class combined ground wire for a transformer substation in the technical field of ground wire structures, which comprises a ground terminal, a one-to-three ground wire electrically connected with the ground terminal, ground wire clamps electrically connected with the tail ends of branch lines of the one-to-three ground wire respectively, and insulating rods connected to the bottoms of the ground wire clamps, the grounding wire clamp is composed of a double-tongue spring type wire clamp and a clamping piece type wire clamp which are fixed back to back, the clamping piece type wire clamp comprises a vertically-arranged pneumatic telescopic cylinder, the upper end of the outer wall of the pneumatic telescopic cylinder and the top end of a telescopic rod of the pneumatic telescopic cylinder are connected with a lower clamping plate and an upper clamping plate respectively, the insulating rod is a hollow rod, and an air blowing device is arranged at the bottom end of the insulating rod. According to the multi-voltage-class combined ground wire, the double-power-connection-end combined design is adopted, so that the requirements of different devices on site for different power connection ends are met, the requirements of different voltage classes on site for insulating rods with different lengths are met, and one set of ground wire is suitable for multiple voltage classes.

The invention relates to an overturning fast moving trailer which comprises an axle hanging vehicle assembly, a prying seat and an overturning traction pin device, wherein the axle hanging vehicle assembly is connected with the rear end of the prying seat through a connecting pin, hoist support devices are arranged on two sides of the front part of the prying seat respectively, the front end of the prying seat is connected with the overturning traction pin device through a pin roll, a traction pin mounted in an overturning and turning manner is arranged in the overturning traction pin device, and the specifications and dimensions of the two ends of the traction pin are different. The overturning fast moving trailer has the following benefits: both the axle hanging vehicle assembly and the prying seat can be selected according to the actual situation, the hoist support devices can easily and rapidly disconnect and connect the prying seat and a tractor-truck without the help of other external equipment, the overturning traction pin device is adopted, the same traction pin is mounted in an overturning and turning manner to meet the requirements of different saddles of the tractor-truck, the mounting is simple, convenient and reliable, in the operating state, the entire prying seat of the trailer lands integrally, the vibration is small, and more stability is realized, so that the overturning fast moving trailer is more stable and reliable in the working process.

Provided is a power distribution network device broken wire connector, which is characterized in that the connector comprises an abutting-against cavity (01) and wire clamping devices arranged at thetwo sides of the abutting-against cavity (01) respectively. The power distribution network device broken wire connector realizes plug and connection; and the connector enables broken wire connection or temporary wiring to be realized more conveniently and quickly, and connection can be done only by extending a wire into the connector and carrying out fastening after the head of the wire is pinched, thereby greatly improving work efficiency and safety.

The invention provides an umbrella structure. A lighting part (2) is installed at the lower end of an umbrella rod (1) of the umbrella structure, the upper end of a connecting part (3) included in thelighting part (2) is connected to a umbrella rod thread hole in the lower end of the umbrella rod (1) through a connecting part screw (5) in a screw-mounting mode, the upper surface of a part shell (4) is movably connected with the lower surface of the connecting part (3), and a telescoping spring (7) is arranged between the connecting part (3) and the part shell (4); and a limiting sliding cover(8) that can slide up and down is installed on the connecting part (3), a battery (9) is installed in the part shell (4), and a light bulb (11) is installed in a groove portion (10) at the lower endof the part shell (4). The umbrella structure has a simple structure, the addition of a lighting function on the structure of an umbrella can be conveniently realized, when people walk on a rainy night, people do not need to hold the umbrella with one hand and take a flashlight with one hand, walking convenience is improved, and meanwhile, the lighting part can be easily and quickly connected andseparated from the umbrella.

The invention relates to the technical field of rose oil production, in particular to an extraction device and an extraction method for rose oil production. The invention discloses an extraction device for rose oil production. The extraction device comprises a distillation retort and a frame stabilizing unit, the frame stabilizing unit comprises a main mounting ring, the main mounting ring is mounted in the distillation retort, a first annular conveying pipe is arranged in the main mounting ring, and an air inlet pipe and a material adding pipe are arranged on the first annular conveying pipe; a plurality of sets of frame clamping rings are distributed in a central hole of the main mounting ring in an annular array mode, a second annular conveying pipe is arranged in the frame clamping rings, a plurality of sets of air outlets are distributed in the inner wall of the second annular conveying pipe in an annular array mode, and the second annular conveying pipe communicates with the first annular conveying pipe; a plurality of groups of raw material placing units are movably clamped at the top of the distillation retort. According to the invention, not only is the yield of rose oil increased, but also the smoothness of distillation work and the convenience of material adding work are improved.

The invention discloses a constructing module assembly. The constructing module assembly comprises a first constructing module and a second constructing module, wherein the first constructing module and the second constructing module are connected by a connecting assembly. The connecting assembly comprises a positioning fixed pin arranged on the first constructing module and a positioning fixed pin locking piece arranged on the second constructing module. The positioning fixed pin comprises a column head part, a column rod part, and a first hole and a second hole are formed in the positioningfixed pin locking piece, wherein the first hole communicates with the second hole. The opening size of the first hole allows the column head part to pass through, and the opening size of the second hole does not allow the column head part to pass through but allows the column rod part to pass through. The constructing module assembly has the advantages of repeatable recycling, good environmental protection, quick and convenient disassembly and assembly, and small installation and positioning error.

The invention provides a modular refrigerator with an air treatment layer. The modular refrigerator with the air treatment layer comprises a base, a top layer and at least one box body arranged between the base and the top layer; the base comprises a refrigerating system, the top layer is the air treatment layer, and each box body comprises an evaporator; and the refrigerating system is electrically connected with the evaporators, and gas among the base, the top layer and the box bodies can be circulated. According to the modular refrigerator with the air treatment layer, the air treatment layer is additionally arranged in the modular refrigerator, so that the functions of the refrigerator and the air treatment are combined, peculiar smells in the refrigerator can be effectively removed, bacteria in the refrigerator can be reduced, and the cleanliness of the refrigerator can be kept.

The invention relates to a connecting seat and a machine demonstration device. The connecting seat comprises at least one pair of conductive pin shells, an insulation lining seat, a conductive gasketand an elastic piece, wherein each conductive pin shell comprises an opening part; one end of the elastic piece is fixed at the bottom end of the conductive pin shell, and the other end of the elasticpiece abuts against the insulation lining seat; the insulation lining seat is connected to the opening part in a clamped mode, the conductive gasket is installed on the insulation lining seat, and the two ends of the conductive gasket extend to the inner shell wall of the conductive pin shell. According to the connecting seat installed on a robot demonstrator, the connecting seat can be insertedand pulled out at any time and place, so that an emergency stop instruction cannot be triggered due to the insertion and removal, and then the robot demonstrator and the robot control cabinet can be disconnected or electrically connected conveniently and rapidly.