47results about How to "No shaking phenomenon" patented technology

The present invention discloses a filtration core housing fixation apparatus, and a water purifier having the filtration core housing fixation apparatus. The filtration core housing fixation apparatus comprises a shock reducing fixation block connected to the panel of a water purifier opening cover, wherein the shock reducing fixation block is arranged between the panel of the water purifier opening cover and the filtration core housing, and bears against the filtration core housing. According to the present invention, the shock reducing fixation block is arranged between the panel of the water purifier opening cover and the filtration core housing, and bears against the filtration core housing, such that the shock reducing fixation block bears against the filtration core housing, and the shaking of the filtration core housing is avoided; when the filtration core housing fixation apparatus is used for the water purifier, the filtration core housing shaking phenomenon cannot be generated; the problem that the existing water purifier filtration core housing fixation structure affects the performance of the water purifier is solved; and when the size of the filtration core housing is changed, only the shock reducing fixation block is required to be replaced so as to fix the filtration core housings with different sizes, such that the problem that the versatility of the existing water purifier filtration core housing fixation structure is poor is effectively solved.

The invention discloses a more reliable seat suspension mechanism, composed of a lower frame, a rigidity adjustment device and an upper frame, wherein the rigidity adjustment device is located between the lower frame and the upper frame; the rigidity adjustment device is composed of an inner support, an outer support, two springs, a damper and a rigidity adjustment assembly; the upper frame is composed of a front side frame, a rear side frame, a left side frame and a right side frame; the inner support and the outer support compose an interior shear-type mechanism; the rigidity adjustment assembly is composed of a pull rod, a lever, a body box and an adjustment screw; the lever is located in the body box, the adjustment screw penetrates through the body box and the lever, the lever is connected with the adjustment screw via a nut, and the fulcrum of the lever is hinged together with the body box, and the other end of the lever is hinged with a pull rod; one end of each of the two springs is hooked at two ends of the pull rod, and the other end of each of the two springs is hooked on a cross rod; the end part of the adjustment screw exposes out of the upper frame; and the damper is slantwise arranged between the lower frame and the upper frame. The more reliable seat suspension mechanism disclosed by the invention has a sufficient suspension amount and no sway phenomenon.

The invention discloses a cutting machine for a decorative plate. The cutting machine comprises a first fixed plate, wherein buffer devices are fixedly arranged at the upper end of the first fixed plate; a cutting groove is fixedly formed in the middle surface of a base plate; a plate fixing device is arranged at a position, on one side of an outer frame plate, at the upper end of the base plate;a cutting device is fixedly arranged at the lower end of the top of the outer frame plate; rollers are fixedly arranged on two sides of the bottom of a pressing bottom plate; the rollers are connectedwith rolling grooves in a sliding manner; fixed screws are arranged at the upper end of the middle part of a top plate; pressing plates are fixedly arranged at the bottoms of the fixed screws. The cutting machine for the decorative plate relates to the field of decorative building material machining equipment. The cutting machine for the decorative plate can enable the plate to be stable in a cutting process, so as to avoid a shaking phenomenon; in addition, the cutting machine can be cooled, so that the service life of the cutting machine is prolonged favorably; the cutting steadiness is guaranteed, and the plate cutting precision is improved conveniently.

A manual push type porter is composed of a pair of external skeletons, a curve handle, a pair of telescopic rods, an upper fixed frame, a lower fixed frame, a goods carrier, a pair of wheels and their holders, and a pedal lever unit. Its advantages are high stability, saving labour, and the lift of the goods in inclined mode.

The invention relates to an electronic component diode pin processing method. The method mainly comprises the following steps that: welding, acid pickling, mold pressing, forming and curing, residualglue removing, pin bending, electroplating, lettering, packaging and storing are carried out; and a used pin bending device comprises a mounting frame, a fixing plate and an overturning plate, a fixedplate is mounted on the mounting frame, and an overturning plate is arranged at the right end of the fixed plate in a rotary connection manner. The method can solve problems that when an existing steel plate is subjected to surface polishing operation: a, when diode pins are bent, a diode needs to be fixed, then tweezers are used for directly bending the diode pins, the workload is greatly increased, the working efficiency is low, and the phenomenon that a diode body is prone to being extruded and damaged is caused can be solved; and b, when the existing diode pins are bent, the diode pins are bent in a manual bending mode, so that the bending angles of the pins cannot be unified, a certain deviation exists, and the quality of the diode is influenced.

The invention provides a mounting structure for a fabricated hung wall surface. The mounting structure comprises a wall, leveling members, transverse sectional materials, baseplate units, fasteners and a veneer, wherein the leveling members are arranged on the wall in rows; the transverse sectional materials are connected to the leveling members; each transverse sectional material is correspondingto a row of the leveling members; multiple baseplate units are arranged; the baseplate units comprise baseplates and vertical sectional materials; the baseplates are located on the outer sides of thetransverse sectional materials, and are further connected to the leveling members; the vertical sectional materials are arranged on the two sides of the baseplates; the fasteners are connected to theadjacent vertical sectional materials of the adjacent baseplate units in a clamping manner; and the veneer is connected to the vertical sectional materials in the clamping manner. Compared with the prior art, the mounting structure has the following advantages that the structure is compact; the connection strength is good; a swaying phenomenon cannot be generated; the overall mounting quality isimproved; further, the mounting is rapid; and the construction efficiency is improved.

The invention discloses a welding and locating tool for a battery bracket of an electric bus. The welding and locating tool comprises a rectangular framework; the two ends of the rectangular framework are connected to two opposite locator cards; a central longitudinal beam and a plurality of side longitudinal beams are arranged on the middle part of the rectangular framework; the side longitudinal beams are positioned at the two sides of the central longitudinal beam; a main body locating pin is arranged on the middle part of the central longitudinal beam; clamping devices are arranged on the middle parts of the side longitudinal beams; a plurality of locating plates are arranged on the rectangular framework and the side longitudinal beams; and battery bracket locating pins are arranged on the locating plates. According to the welding and locating tool disclosed by the invention, the tool is located and fixed in a perpendicular direction through the locator cards, the tool is located and fixed in the horizontal direction through the main body locating pin, and the tool is located and fixed in the vertical direction through the clamping devices, so that the tool and a chassis of the electric bus are firmly and reliably connected without a shaking phenomenon; and the battery bracket is located and fixed through the locating plates and the battery bracket locating pins, so that the battery bracket is welded; and the welding and locating tool is simple in structure and is convenient to use, so that mounting efficiency of the battery bracket is greatly improved.

The invention discloses an electronic jacquard card drive board which comprises a drive circuit board, a bistable needle selection electromagnetic valve, an FPC flexible circuit, a data transmission interface and at least two fixed pins, wherein an electromagnetic valve fixed seat and the drive circuit board are fixed together through the fixed pins; the flat cable terminal of the FPC flexible circuit is connected with the drive circuit board through an FPC connector; the FPC connector is welded on the drive circuit board; and the data transmission interface comprises an interface plug and an interface socket which are respectively vertically welded and fixed to the upper and lower surfaces of the drive circuit board. The bistable needle selection electromagnetic valve and the FPC flexible circuit on the electronic jacquard card drive board are fixed in a detachable way, and can be conveniently replaced when going wrong, thereby reducing the operation cost. The data transmission interface is convenient to disassemble and maintain, so that two electronic jacquard card drive boards can be connected together in a more stable way, thereby ensuring data transmission to be more accurate.

The invention discloses a grinding device for a chair for teaching. The grinding device comprises a machine frame, a positioning block, a supporting plate, a lifting assembly and a clamping assembly,wherein four positioning grooves distributed as vertexes of a rectangle are formed in the upper end of the positioning block, supporting columns are arranged at the lower end of the positioning blockand are fixed to the bottom of the machine frame, the supporting plate is located below the positioning block, two sliding rails and a fourth air cylinder are arranged at each of the two ends of the positioning block, sliding blocks which are connected to the sliding rails in a sliding mode are arranged on the sliding rails, grinding machines are arranged on the opposite sides of the sliding blocks at the two ends, grinding sheets of the grinding machines are consistent in height, piston rods of the fourth air cylinders are connected to the sliding blocks, the fourth air cylinders can push thesliding blocks at the two ends to slide on the sliding rails in the opposite direction or the backward direction, the positioning grooves are located on the moving tracks of the grinding machines correspondingly, the lifting assembly is located on the side surface of the machine frame and and can drive the supporting plate to vertically ascend and descend, and the clamping assembly is located atthe top of the machine frame. The grinding device has the advantages of being simple in using method, high in grinding efficiency, capable of grinding four supporting legs at a time, capable of ensuring that the bottoms of the supporting legs are consistent in height and capable of avoiding the phenomenon of chair shaking.

The invention relates to a core rod for drawing a pipe, comprising a core rod body, and the core rod body is a solid pole. The core rod is characterized in that the periphery of the front end of the core rod body is provided with a sleeve, and the end face is provided with a thread counter bore; a sealing piece is fixedly welded on the end face of the sleeve, and the middle part of the sealing piece is provided with a through hole; and the aperture of the through hole is smaller than the outer diameter of the core rod body. After the scheme that the end part of the thinner core rod is additionally provided with the sleeve is adopted, the requirements on concentricity and straightness among an inner die, an outer die, the pipe and the core rod can be better met; jolting phenomena cannot be generated during drawing the pipe; the quality of the drawn pipe is good; and the purpose that the thinner core rod can adapt to the drawing of various pipes with the outer diameters larger than the outer diameter of the core rod after the thinner core rod is simply changed.

The invention discloses a thread gap elimination device and an assembly method thereof. The thread gap elimination device comprises a transmission screw rod, a main nut, an auxiliary nut, a connection pin, a disc spring pin, a disc spring, a box body and an end cover, wherein the end cover is fixed on the box body through a fastener; the transmission screw rod penetrates through from the central holes of the box body and the end cover; the main nut and the auxiliary nut are arranged between the inner hole of the box body and the radial direction of the transmission screw rod; the main nut and the auxiliary nut are matched with an external thread of the transmission screw rod through an internal thread, and form a certain gap with the inner hole of the box body; the auxiliary nut is arranged on the upper part of the main nut, and forms a certain gap with the main nut; the connection pin is connected with the end cover, the auxiliary nut and the main nut; the lower part of the disc spring pin is connected to the auxiliary nut, and the upper part of the disc spring pin is located in the inner hole of the end cover; and the disc spring sleeves outside the disc spring pin, and forms a gap with the inner hole of the end cover. The thread gap elimination device disclosed by the invention is capable of conveniently and reliably eliminating a thread gap. Meanwhile, the thread gap elimination device disclosed by the invention is simple in structure and convenient to install.

The invention discloses an efficient reaction kettle which comprises a kettle body. The top of the kettle body is provided with a feed inlet and an air outlet. A stirring shaft is arranged in the center inside the kettle body. Multiple spiral stirring blades and multiple triangular stirring paddles are fixed to the stirring shaft in a crossed mode. An appropriate space is reserved between the outer side of each spiral stirring blade and the inner wall of the kettle body, and an appropriate space is reserved between the vertical edge of the outer side of each triangular stirring paddle and the inner wall of the kettle body. The upper end of the stirring shaft is connected to a speed reduction box fixed to the top of the outer side of the kettle body. The speed reduction box is connected to a driving motor. The lower end of the stirring shaft is fixedly installed in a bearing at the bottom of the kettle body. According to the efficient reaction kettle, multiple stirring ways are combined, all-around stereoscopic stirring and mixing of chemical raw materials is achieved, mixing is more sufficient, and wall sticking and stagnant area phenomena are eliminated. The efficient reaction kettle has the advantages of being simple in structure, easy to manufacture and high in stirring efficiency.

The invention belongs to the technical field of water tank mesh enclosure sweeping, and particularly relates to a self-rotating dust removal device of an engine water tank dust mesh enclosure. The self-rotating dust removal device comprises the dust mesh enclosure, the front side face of an engine water tan is covered with the dust mesh enclosure, an engine is arranged behind the engine water tank, an impeller is arranged between the engine and the engine water tank, the impeller is mounted at the output end of the engine, and a rotary disc is arranged in the middle of the dust mesh enclosure. Heat radiation through holes are formed in the rotary disc, a dust collecting device is arranged at the front side of the rotary disc, and power of sucking air in the dust collecting device is all provided by the impeller driven by self-rotation of the engine inside. Self energy is utilized for clearing away sundries on the mesh enclosure, the utilization rate of energy is greatly increased, and the rotary disc is driven by a transmission motor and a gear pair. The self-rotating dust removal device of the engine water tank dust mesh enclosure is simple in structure and can automatically clear away the sundries on the engine water tank mesh enclosure, the work efficiency is improved, and the engine is effectively protected.

The invention discloses a pulley-chute connection structure applied to an anti-drop door window. The pulley-chute connection structure comprises a window frame and a window sash mounted in the window frame, wherein one or more pulley blocks are arranged at the upper end of the window sash; two or more pulleys are arranged on each pulley block; a chute comprises two or more slideways arranged in an up-down manner; the inner wall of the left side of at least one slideway is butted against the left side of at least one pulley, and the inner wall of the right side of at least one slideway is butted against the right side of at least one pulley, that is, at least two slideways are mutually staggered. Through analysis from the force bearing condition of each whole pulley block, the left side and the right side of the pulley block are propped against the inner wall of the chute, and no interval exists on the left side and the right side of the pulley block, so that the shaking phenomenon can be avoided; through analysis from each pulley, only one side of the pulley is propped against the inner wall, and a relatively large interval exists on the other side, so that rotating and sliding of the pulley are not influenced, due to the relatively large interval, the pulley can still slide smoothly even though the chute has larger deformation, and the use is very convenient.

The invention belongs to the technical field of water tank mesh enclosure sweeping, and particularly relates to a self-rotating dust removal device of an engine water tank dust mesh enclosure. The self-rotating dust removal device comprises the dust mesh enclosure, the front side face of an engine water tan is covered with the dust mesh enclosure, an engine is arranged behind the engine water tank, an impeller is arranged between the engine and the engine water tank, the impeller is mounted at the output end of the engine, and a rotary disc is arranged in the middle of the dust mesh enclosure. Heat radiation through holes are formed in the rotary disc, a dust collecting device is arranged at the front side of the rotary disc, and power of sucking air in the dust collecting device is all provided by the impeller driven by self-rotation of the engine inside. Self energy is utilized for clearing away sundries on the mesh enclosure, the utilization rate of energy is greatly increased, and the rotary disc is driven by a transmission motor and a gear pair. The self-rotating dust removal device of the engine water tank dust mesh enclosure is simple in structure and can automatically clear away the sundries on the engine water tank mesh enclosure, the work efficiency is improved, and the engine is effectively protected.

The invention discloses an animal and plant cell culture machine. The machine structurally comprises a case, a storage rack, a setting panel, a pinch plate, a power supply port and support legs, the storage rack is arranged in the case, the setting panel and the pinch plate are respectively arranged on the surface of the storage rack, and the power supply port is connected to the side surface of the storage rack. The structure position can be changed under the driving of a lifting bracket in the structure, a displacement block is prevented from exceeding the moving stroke, and connection between sliding groove blocks can be effectively prevented from falling off, an adjusting plate is locked through a locking ring, and the shaking probability of the adjusting plate is reduced, so the shaking phenomenon cannot be generated in the process that the storage rack is moved out of the machine to the outside, and infectious microbes generated due to overturning of a culture medium in the operation process is avoided.

The invention provides a windscreen wiper motor rotor snap spring mounting device which comprises a horizontal base, a fixing plate, a clamping piece, a motor shell placing mechanism and a motor shell. The fixing plate is fixed to one side of the top of the horizontal base, the motor shell placing mechanism is arranged on the other side of the top of the horizontal base, and the motor shell is placed on the motor shell placing mechanism. A pushing mechanism is fixed on the fixing plate, a clamping piece is arranged at the output end of the pushing mechanism, the clamping piece clamps a snap spring to move into the motor shell, a limiting mechanism for limiting the position of the motor shell is arranged on the horizontal base and located above the motor shell, and the limiting mechanism clamps a rotor to be inserted into the motor shell. The snap spring mounting device has the advantages that on one hand, the clamp spring mounting efficiency can be improved, on the other hand, the snap spring mounting position can be more accurate, the snap spring using effect is better, the shaking phenomenon is avoided, and meanwhile the snap spring can be prevented from being damaged.

Provided are a tool special for overlaying and assembly welding of small-caliber elbows and an installing method. At present, the elbows are manufactured by means of a traditional manufacturing process 'trisection-respective overlaying-assembly welding and overlaying', and the traditional manufacturing process is still widely adopted, has the advantages of being simple in required devices and low in manufacturing cost and has the shortcomings of being complicated and tedious in process, long in manufacturing period and large in manual overlapping work amount. The tool special for overlaying and assembly welding of the small-caliber elbows comprises a small rib plate(1), wherein the small rib plate is connected with a bent plate (6), the bent plate is connected with a large rib plate (2), a middle rib plate (3) and a base plate (10) respectively, the base plate is connected with a support fixing plate (11), the support fixing plate is connected with a bolt (7), a nut (9), a washer (8) and a large support (5), the large support is connected with a small support, and an upper seal head elbow module and a lower seal head elbow module are installed on the small support. The tool is mainly applied to overlaying and assembly welding of the small-caliber elbows and the installing method.

The invention discloses a panel rotating type elevator operation panel. The panel rotating type elevator operation panel comprises a bottom box and a panel covering the bottom box. The bottom box is internally provided with a panel rotating mechanism. The panel rotating mechanism is horizontally and rotatably connected with the bottom box. The panel is connected with the panel rotating mechanism and can do horizontal rotation and up-down movement relative to the panel rotating mechanism. The bottom box is internally provided with a lower clamping part. The panel is provided with an upper clamping part. The upper clamping part is clamped with the lower clamping part in an up-down mode when the panel is attached to the side face of the bottom box to move downwards. According to the panel rotating type elevator operation panel, the panel is convenient and fast to assemble, open and operate. The opened panel can maintain a certain distance from the car wall without shaking. The panel rotating type elevator operation panel is convenient to install and maintain and effectively protects the car wall against damage. The panel is not likely to fall off. Potential safety hazards are eradicated.

The invention discloses a dynamic color-changeable two-dimensional code anti-counterfeit label, and belongs to the domain. The dynamic color-changeable two-dimensional code anti-counterfeit label comprises a label body and a protection frame sleeving the outer side of the label body, the protection frame comprises a left frame and a right frame. Grooves are formed in the inner side walls of the left frame and the right frame; the label body is clamped in the grooves in the left frame and the right frame; a clamping structure is arranged at the joint of the left frame and the right frame; the label body comprises a transparent protective layer, a thermochromic layer, an anti-counterfeiting information layer, a base material layer, an adhesive layer and a release layer which are sequentiallyarranged from top to bottom; the anti-fake information layer is bonded to the upper surface of the base material layer, the temperature sensing color changing layer is bonded to the upper surface ofthe anti-fake information layer, the label body can be effectively protected, the protection frame can be rapidly clamped and detached, clamping is firm, detaching is convenient, various kinds of anti-fake information are contained, the anti-fake strength is high, and the anti-fake effect and sufficiency are guaranteed.

The invention discloses an automobile halogen bulb, which comprises a bulb body and a fixing seat connected to the tail of the bulb body; two grooves used for clamping a lamp socket are formed on the two surfaces of the fixing seat; and the positions of the grooves correspond to the positions of clamping bars on the lamp socket. The automobile halogen bulb has the advantages that: by forming the grooves on the fixing seat, the bulb can be firmly fixed in the lamp socket and cannot shake, so good contact of the bulb is ensured, and the bulb can stably and normally work for a long time.

The invention relates to the technical field of organic silicon materials, in particular to environment-friendly silicone grease for fixing a small-size nanocrystalline magnetic core and a preparationmethod thereof. The environment-friendly silicone grease comprises the following components: 100 parts of polyorganosiloxane, 30-60 parts of tackifying filler, 8-18 parts of a modification treatmentagent and 0.5-1.5 parts of a structure stabilizer. The preparation method comprises the following steps: kneading the polyorganosiloxane, the tackifying filler and the modification treatment agent atnormal pressure, carrying out vacuum heat treatment, cooling the material, grinding, adding the structure stabilizer, and carrying out vacuum mixing. According to the environment-friendly silicone grease, the problems that in the prior art, a small-size nanocrystalline magnetic core is not firmly fixed, and performance attenuation is serious are solved, and it can be guaranteed that the small-sizenanocrystalline magnetic core does not shake for 20 years on the premise that the performance is not damaged through the provided environment-friendly silicone grease.

The invention discloses a welding and locating tool for a battery bracket of an electric bus. The welding and locating tool comprises a rectangular framework; the two ends of the rectangular framework are connected to two opposite locator cards; a central longitudinal beam and a plurality of side longitudinal beams are arranged on the middle part of the rectangular framework; the side longitudinal beams are positioned at the two sides of the central longitudinal beam; a main body locating pin is arranged on the middle part of the central longitudinal beam; clamping devices are arranged on the middle parts of the side longitudinal beams; a plurality of locating plates are arranged on the rectangular framework and the side longitudinal beams; and battery bracket locating pins are arranged on the locating plates. According to the welding and locating tool disclosed by the invention, the tool is located and fixed in a perpendicular direction through the locator cards, the tool is located and fixed in the horizontal direction through the main body locating pin, and the tool is located and fixed in the vertical direction through the clamping devices, so that the tool and a chassis of the electric bus are firmly and reliably connected without a shaking phenomenon; and the battery bracket is located and fixed through the locating plates and the battery bracket locating pins, so that the battery bracket is welded; and the welding and locating tool is simple in structure and is convenient to use, so that mounting efficiency of the battery bracket is greatly improved.

The invention discloses a connecting structure of an automobile steering wheel and a driver airbag. The connecting structure comprises a steering wheel framework and an airbag shell for mounting the driver airbag, and is characterized in that a plurality of positioning holes are formed in the periphery of a mounting hole in the steering wheel framework, and a plurality of elastic positioning columns are arranged on the bottom surface of the airbag shell; the elastic positioning columns are inserted into the positioning holes in a one-to-one correspondence manner; three bosses are arranged on the steering wheel framework and located in the periphery of an installation hole of the steering wheel framework, notches are formed in the sides, corresponding to the installation hole, of the bossesrespectively, inserting holes communicated with the notches are formed in the bosses respectively, three clamping hooks are arranged on the bottom face of the air bag shell, and the clamping hooks are inserted into the corresponding inserting holes respectively and limited through U-shaped clamping springs. The middle part and the two ends of each U-shaped snap spring are respectively clamped into the notches and are clamped on the corresponding clamping hooks; and a plurality of pressure springs are clamped between the steering wheel framework and the bottom surface of the airbag shell. Theautomobile steering wheel system has the advantages that abnormal sounds caused by automobile body vibration can be effectively avoided, and the user driving experience is improved.

The invention belongs to the technical field of automatic die changing clamping jaws, and particularly relates to an automatic die changing clamping jaw of a robot. The automatic die changing clamping jaw of the robot comprises a fixing block, wherein a connecting block is arranged in the middle of the fixing block, an air cylinder is arranged on one side of the fixing block, one end of the connecting block is fixedly connected with the air cylinder through a bolt, and a sensor is fixed to the upper part of the connecting block; the sensor is fixedly connected with the fixing block through a screw, a transition block is arranged below the connecting block, the transition block and the connecting block are fixed through welding, a left hook rod and a right hook rod are arranged at the bottom end of the fixing block, and the left hook rod and the right hook rod are elastically connected; a die kidney-shaped groove is formed in the position close to the middle of the left hook rod and the right hook rod, the jaw detects a die through the sensor, the air cylinder drives the connecting block to move forwards, gaps between the hook rods and the die kidney-shaped groove are eliminated through elastic deformation generated by the left hook rod and the right hook rod, finally the die is clamped by a clamp, and it is guaranteed that the die does not shake in the die changing process.

The invention relates to an electronic component diode pin processing method. The method mainly comprises the following steps that: welding, acid pickling, mold pressing, forming and curing, residualglue removing, pin bending, electroplating, lettering, packaging and storing are carried out; and a used pin bending device comprises a mounting frame, a fixing plate and an overturning plate, a fixedplate is mounted on the mounting frame, and an overturning plate is arranged at the right end of the fixed plate in a rotary connection manner. The method can solve problems that when an existing steel plate is subjected to surface polishing operation: a, when diode pins are bent, a diode needs to be fixed, then tweezers are used for directly bending the diode pins, the workload is greatly increased, the working efficiency is low, and the phenomenon that a diode body is prone to being extruded and damaged is caused can be solved; and b, when the existing diode pins are bent, the diode pins are bent in a manual bending mode, so that the bending angles of the pins cannot be unified, a certain deviation exists, and the quality of the diode is influenced.

The invention discloses an auxiliary cooling device used for the production and processing of liquid crystal display modules, comprising a cooling table, a cooling box, an air outlet and an air suction port. The upper and lower ends are provided with air outlets, and the middle of one side of the cooling box is provided with an air intake. The invention is scientific and reasonable, safe and convenient to use, and is provided with a cooling box, which utilizes the cooling U-shaped pipe inside the cooling box to achieve heat exchange. At the same time, the air flow can be formed above the cooling table by using the outlet fan and the suction fan inside the air outlet and the air suction port, the cold air can be used to cool the liquid crystal display module, and the hot air can be sucked into the cooling box by the air suction port and the suction fan. On the one hand, the flow of air is accelerated, which effectively improves the cooling rate of the liquid crystal display module;

The invention provides an observation device for an organic chemical reaction, belonging to the technical field of chemical reaction devices. The invention aims to solve the problems that when an existing chemical reaction device is directly observed through naked eyes, the naked eyes of people are easily damaged, people cannot observe in time, the chemical reaction observation effect is reduced. The observation device comprises a transparent box, wherein a fixing part is arranged on the bottom end face of the transparent box, an air exhaust piece is arranged on the left portion of the front side of the fixing part, a limiting part is arranged on the upper portion of the air exhaust piece, and a reaction containing disc is fixedly installed on the middle side of the interior of the transparent box body through four supporting columns. Through the arrangement of the transparent box and a protective top plate, the phenomenon that a chemical reagent splashes to human eyes in a reaction process is effectively avoided, and the naked eyes of people cannot be hurt; and when the reaction speed of the chemical reagent is high, an image recorded by a camera device can be played back through a display device, so chemical reaction observation effect is effectively improved.