52results about How to "Compact structure design" patented technology

The invention relates to a furniture board sander which comprises a rack, lateral sanding mechanisms, an upper surface sanding mechanism, a board conveying mechanism, a board upper limiting mechanism and a control box, wherein the rack adopts a frame structure; the lateral sanding mechanisms are mounted on the two sides of the rack and are connected with a horizontal adjusting mechanism and a vertical adjusting mechanism; the upper surface sanding mechanism is mounted above a conveying belt on the rear sides of the lateral sanding mechanisms; the upper limiting mechanism is hinged among the lateral sanding mechanisms and the upper surface sanding mechanism; the control box is arranged at a discharging end of the rack. By adopting the technical scheme, the furniture board sander has the advantages as follows: the sanding precision of the board is improved, the environmental pollution is not caused, potential safety hazards are eliminated, human resources are saved and the production efficiency is improved; and in addition, the furniture board sander further has the advantages of being reasonable in structural design, compact, small in occupied space volume.

The invention relates to a vacuum tube vacuum-degree on-line monitoring device of a high-voltage power distribution device and a method thereof; in the device, a capacity coupler carries out coupling to an alternating-current field signal, a coupling electric field signal is led out to a signal pick-up circuit by a capacitance potentiometer low-voltage arm, after carrying out rectification filtering processing, the pick-up signal is converted into a frequency signal through a voltage-to-frequency conversion circuit, and the frequency signal is transmitted to a microprocessor unit after being coupled and separated. Software processing and analysis are carried out to the acquired signal of the microprocessor, so as to realize the vacuum-degree on-line monitoring function with 10-2 of resolution ratio, an acousto-optic alarming unit realizes vacuum degree degradation pre-alarming function, and the monitoring system and other monitoring systems are synchronized and integrated by a communication unit, so as to be convenient for centralized processing, analysis and sharing of the data. In the device, by monitoring the change of the vacuum tube shielding case alternating-current potentiometer, the change of the vacuum degree is monitored; the structure is simple, the cost is low, the disadvantage that the temperature of a crystal element of a photoelectric probe such as pockels is overcome, the measurement is reliable, the installation is convenient, therefore, the invention is a real-time monitoring device with complete function.

The invention provides an anti-pirating fingerprint stamp. After a stamping person successfully passes the fingerprint register comparison, a stamping permission motor drives a motor cam to rotate, the cam drives a stamp positioning block to position a stamp head assembling assembly, accordingly, a lock rod is driven to move, limitation unlocking on a telescopic cover and a connecting support is achieved, and the stamping person can execute stamping. One-time stamping after successful registering is achieved, and the problems of abuse and non-authorized usage of the stamp can be effectively solved. The anti-pirating fingerprint stamp is compact, small and exquisite in structural design, and the stamp positioning function can be achieved; stamp taking down and installing can be achieved; and the distance between the end face of the telescopic cover and the stamp face is positioned, it can be guaranteed that when paper is attached in from the end face of the telescopic cover, an integral stamp mark cannot be stamped, and the anti-pirating function is reliable. The three-section type connecting design is adopted in a stamp shell structure, inner screw connection is adopted, screws cannot be detached from the outside, the design structure cannot be detached without authorization, and real detachment preventing is achieved. The anti-pirating fingerprint stamp can be compatible with existing atom (photosensitive) stamps on the market.

The invention discloses a bolt screwing device for a ball valve assembly machine. The bolt screwing device comprises a supporting frame. Air cylinders are installed at the left end and the right end of the supporting frame respectively. A connection plate is arranged under the supporting frame, a motor is installed at the upper end of the connection plate, a sun gear is fixed to a shaft of the motor, planetary gears are uniformly meshed around the sun gear and are uniformly provided with connection pipes, moving columns are installed in the connection pipes, springs are fixed to the upper ends of the moving columns, and magnetic locating bases are fixed to the lower ends of the moving columns. The bolt screwing device has the advantages of being compact in structural design and convenient to use, multiple bolts on a ball valve can be assembled simultaneously, manual work is replaced, the automation degree is high, the assembly efficiency of the ball valve is improved, the assembly quality of the ball valve is guaranteed through cooperation between the springs and the connection pipes, and the manpower and the material resources are saved.

The invention relates to a high-resolution fine adjustment day and night prime lens. A front lens set A with negative focal power and a rear lens set B with positive focal power are arranged in the optical system of the lens sequentially in the left-to-right light incidence direction. An iris diaphragm C is arranged between the front lens set A and the rear lens set B. The front lens set A comprises a positive meniscus lens A-1 and a negative meniscus lens A-2 sequentially from left to right. The rear lens set B comprises a double-concave lens B-1 and double-convex lens B-2 tightly-connected gluing assembly and a double-convex lens B-3 sequentially from left to right. The high-resolution fine adjustment day and night prime lens has the advantages of small distortion, large relative aperture and high resolution, can meet the requirement of three-million-pixel high-resolution video shooting, and achieves the wide spectrum confocal aim.

The invention discloses a novel double-passband filter, and the filter comprises a dielectric substrate provided with a grounding through hole, a main circuit and a metal floor. The main circuit comprises two second-order composite resonators which are arranged symmetrically, wherein each second-order composite resonator comprises one grounding through hole. The two symmetric second-order composite resonators are coupled through the grounding through holes. The second-order composite resonators are respectively of a symmetric structure, and respectively comprise an external second-order impedance resonation unit and an internal second-order impedance resonation unit, wherein the second-order impedance resonation units are connected with each other through the grounding through holes, and achieve the grounding. Each second-order impedance resonation unit comprises an internal resonator and an internal resonator, and the external second-order impedance resonation unit is provided with an open-circuit transmission line. The electric coupling, magnetic coupling or cross coupling is formed between the resonators. The filter achieves the miniaturization, and the central frequency and bandwidth of the filter are easy to control. The filter is high in frequency selectivity, is good in inter-band isolation, is compact in structure, and is small and exquisite.

The invention discloses a solvent-free complex method of high temperature cooking complex films and bags and a complex device thereof. The complex method comprises the following steps of preprocessing a first film, placing the first film on a first unreeling device and passing through a guiding roller according to a complex trend of the film, and preheating an adhesive, a gumming device and a complex heat drum; placing a second film on a second unreeling device and passing through the guiding roller according to the complex trend of the film, regulating glue inlet capacity of the gumming device, producing, and finally rolling, curing and cooling. The complex device comprises the first unreeling device, the gumming device, the second unreeling device, the complex heat drum, a rolling device and a pulling roller wherein are arranged on a rack and a glue adding barrel for adding the adhesive in the gumming device. The complex method and the complex device provided by the invention have the advantages that the environmental pollution is not generated, the energy consumption is low, the space occupation is small and the like, the method can utilize air humidity under a certain environment temperature, and mechanical properties of the complex films are effectively improved.

The invention discloses a handheld automatic welding head for welding closely-spaced small-diameter metal pipes. The handheld automatic welding head comprises a shell , wherein a servo motor, a transmission part and a welding part are arranged inside the shell; the servo motor is used for driving the welding part to run through the transmission part. An open gear is driven to rotate in a limited space by matching the motor with the transmission part to realize 360-degree welding of U-shaped pipes, so that the essence of the gear transmission is effectively utilized. In combination with shaft transmission, the operating space is saved to the maximum extent while the welding operation is finished. A driven gear is driven by using the motor, and is used for changing the transmission direction, so that the limitation of single welding direction is broken. By adopting the transmission shaft, the open gear can rotate continuously to the opening for welding, so that 360-degree welding is realized, and smooth implementation of various types of movements is ensured.

The invention relates to the field of energy collection and conversion, in particular to an energy collection backpack based on a composite friction nano-generator structure. The backpack comprises abackpack body, energy conversion units and backpack shoulder straps. The backpack is characterized in that the energy conversion units are symmetrically distributed in the backpack and located at thepositions making contact with the back of the human body, the upper ends of the energy conversion units are fixedly connected with the shoulder straps, and the lower ends of the energy conversion units are fixedly connected with the backpack body. The power generation backpack is ingenious and compact in overall structural design, light in weight, capable of bearing large load, safe, reliable andwide in application range; according to a composite friction power generation structure based on the triboelectrification and electrostatic induction effects, energy of various forms of movement is collected, mechanical energy of a human body is converted into electric energy, energy collection and storage are carried out, and the application prospect is wide.

The invention discloses a multi-rotor manned helicopter which comprises a manned cabin, lifting rotors, an equipment cabin and a steering rudder. The upper portion of the manned cabin is provided witha window, the bottom edge of the manned cabin is provided with sliding wheels, the rear wall of the manned cabin is provided with a cabin door, the outer walls of the two sides of the manned cabin are each provided with a side pushing rotor wing, and the rear ends of the side pushing rotor wings are provided with first power equipment for driving the side pushing rotor wings to operate. There areat least two lifting rotors, the lifting rotors are distributed on the two sides of the manned cabin side by side, and the lower end of each lifting rotor is provided with second power equipment fordriving the corresponding lifting rotor to operate. The equipment cabin is arranged at the bottom of the manned cabin, and a power source for the first power equipment and the second power equipment to operate is arranged in the equipment cabin; and the steering rudder is arranged at the top of the manned cabin. The flight and take-off and landing device is similar to an unmanned aerial vehicle, and has the advantages of small size, flexibility, low altitude, low speed, vertical take-off and landing, economy and practicability.

The invention relates to an elevator traction steel belt defect detection device based on a vision and electromagnetic technology. The device comprises a camera I, a camera bracket I, a guide wheel, a magnetizing device, a buckle, a magnetic sensor, a photoelectric encoder, a data processing circuit board, a handle, a camera bracket II, a camera II and an upper computer. The device has the following advantages: 1, the device integrates visual detection and electromagnetic detection, and can detect the internal and surface defects of the elevator traction steel belt at the same time; and 2, the device can realize quick disassembly and assembly of the camera, and facilitates quick selection of visual detection modes. Meanwhile, the device is simple in structure, low in production cost and convenient to operate.

The invention relates to a safety high-temperature and high-pressure reaction vessel sealing structure for solvothermal synthesis, belongs to the field of solvothermal synthesis application and aims at solving the technical problem of providing the solvothermal high-temperature and high-pressure reaction vessel sealing structure capable of relatively well integrating the sealing property and the safety. According to the technical scheme, the safety high-temperature and high-pressure reaction vessel sealing structure for the solvothermal synthesis comprises a vessel body 1, a vessel cover 2 and a sealing pin 3; the vessel body 1 and the vessel cover 2 are connected and fastened by threads, the sealing pin 3 is compacted by the vessel cover so as to realize the conical sealing between the sealing pin 3 and the vessel body 1. The safety high-temperature and high-pressure reaction vessel sealing structure for the solvothermal synthesis is mainly used as a safety high-temperature and high-pressure solvothermal synthesis reaction container applied in the field of the solvothermal synthesis of a nanomaterial and other materials under the high-temperature and high-pressure conditions, and also can be used as a digestion tank appiled in the fields of quality testing, drug testing and food testing under the high-temperature and high-pressure conditions. The safety high-temperature and high-pressure reaction vessel sealing structure for the solvothermal synthesis has the beneficial effects of being capable of guaranteeing the safety of the high-pressure reaction vessel for the solvothermal synthesis, avoiding extreme accidents of explosion and the like as the pressure in the high-pressure reaction vessel exceeds the pressure-proof safety value in a metal material, and solving the safety and sealing problems.

The invention relates to a high-resolution fisheye lens for day and night use. The high-resolution fisheye lens is characterized in that an optical assembly of the lens comprises a front lens group A with negative focal power and a rear lens group B with negative focal power which are arranged sequentially from left to right along the incident direction of light. The front lens group A is provided with a negative meniscus lens A-1, a plastic aspheric lens A-2 and a positive meniscus lens A-3 sequentially from left to right. The rear lens group B is provided with a plastic aspheric lens B-1 and a double-concave lens cemented group B-2 sequentially from left to right. The centers of the negative meniscus lens A-1, the plastic aspheric lens A-2, the positive meniscus lens A-3, the plastic aspheric lens B-1 and the double-concave lens cemented group B-2 are on the optical axis of light. The high-resolution fisheye lens of the invention has the advantages of compact structure, small size and low weight, and can be used both in the day and at night.

The invention relates to an engine compartment longitudinal beam and front floor longitudinal beam connecting structure and an automobile. The connecting structure comprises an engine compartment longitudinal beam and a front floor longitudinal beam, a first lap joint section is arranged on the rear portion of the engine compartment longitudinal beam, a second lap joint section is arranged at the front end of the front floor longitudinal beam, and the second lap joint section is located in the first lap joint section and is in lap joint with the first lap joint section; a first reinforcing part is arranged in the engine compartment longitudinal beam, the rear end of the first reinforcing part is fixedly connected with a support assembly, two first side plates in lap joint with two side plates of the engine compartment longitudinal beam respectively are arranged on the rear portion of the support assembly, and at least one part of each first side plate is located in the first lap joint section; a third support is arranged in the front floor longitudinal beam and comprises a second vertical plate and two second side plates, and the two side plates overlap the two side plates of the front floor longitudinal beam and are fixedly connected with the two side plates. The structural strength of the lap joint region of the engine compartment longitudinal beam and the front floor longitudinal beam can be improved, while requirement for external arrangement space of the lap joint region is not increased.

The invention relates to a saccule electrode duct for cavity tissue ablation. The saccule electrode duct comprises a duct a and a duct b arranged in the duct a, wherein an electrode sleeve ring a, a saccule b, an electrode sleeve ring b, a potential electrode a, a potential electrode b, an electrode sleeve ring c, a saccule a, and an electrode sleeve ring d are sequentially arranged on the outer surface of the duct a from left to right; a metal claw cage b is arranged between the electrode sleeve ring a and the electrode sleeve ring b; a metal claw cage a is arranged between the electrode sleeve ring c and the electrode sleeve ring d; the electrode sleeve ring b, the electrode sleeve ring c and the duct a are fixedly connected; the electrode sleeve ring a and the electrode sleeve ring d can freely slide in the duct a; the duct b is a flexible hollow columnar pipe body, and 4 conducting wires in spacing spiral wounding are arranged on the outer surface; and the conducting wires are respectively connected with the electrode sleeve ring b, the electrode sleeve ring c, the potential electrode a and the potential electrode b. The invention provides the saccule electrode duct which can perform safe and effective ablation radical cure treatment on malignant tumors.

The invention relates to a folding device of strip-shaped laying bed sheet cloth. The device is provided with a cloth folding operation table, and two rectangular cloth folding openings are formed inthe middle position of the table board of the cloth folding operation table side by side; a cloth folding rod box is arranged in the middle position of one side of the table board of the cloth foldingoperation table; a cloth pressing rod set and a cloth folding rod set are arranged in the cloth folding rod box, wherein the cloth pressing rod set is composed of a lower-layer cloth pressing rod, amiddle-layer cloth pressing rod and an upper-layer cloth pressing rod; the cloth folding rod set is composed of a lower-layer cloth folding rod a, a lower-layer cloth folding rod b, a middle-layer cloth folding rod a, a middle-layer cloth folding rod b, an upper-layer cloth folding rod a and an upper-layer cloth folding rod b, and the lower end of each rod is in transmission connection with a corresponding cloth folding rod rotating and driving device; and each cloth folding rod driving air cylinder is used for conducting air path on-off control through a corresponding electromagnetic valve, and each electromagnetic valve is in communication connection with a PLC arranged in the cloth folding rod box. According to the device, the whole device is ingenious and compact in structural design,fast in action, good in cloth folding orderliness effect, high in efficiency and very good in practical use value.

The invention relates to a furniture board sander which comprises a rack, lateral sanding mechanisms, an upper surface sanding mechanism, a board conveying mechanism, a board upper limiting mechanism and a control box, wherein the rack adopts a frame structure; the lateral sanding mechanisms are mounted on the two sides of the rack and are connected with a horizontal adjusting mechanism and a vertical adjusting mechanism; the upper surface sanding mechanism is mounted above a conveying belt on the rear sides of the lateral sanding mechanisms; the upper limiting mechanism is hinged among the lateral sanding mechanisms and the upper surface sanding mechanism; the control box is arranged at a discharging end of the rack. By adopting the technical scheme, the furniture board sander has the advantages as follows: the sanding precision of the board is improved, the environmental pollution is not caused, potential safety hazards are eliminated, human resources are saved and the production efficiency is improved; and in addition, the furniture board sander further has the advantages of being reasonable in structural design, compact, small in occupied space volume.

The invention belongs to the field of mechanical property testing of materials, and discloses a fatigue loading device for in-situ observation of a scanning electron microscope, which mainly comprisesa structural body, a mechanical loading unit, a data acquisition unit, a fixed connection unit and a sealed connection unit, wherein the mechanical loading unit and the data acquisition unit are arranged in the structural body; the mechanical loading unit comprises a motor, a first belt wheel, a conveying belt, a second belt wheel, a belt pressing wheel, a lead screw, a nut ejector block and a clamp set; the data acquisition unit comprises a grating ruler, a reading head and a load sensor; the fixed connection unit is arranged at the bottom of the structural body; and the sealed connection unit is arranged at a wire outlet of an SEM sample chamber. Thus, the observation of microstructure change and damage failure behaviors in the SEM online in-situ observation material fatigue test process is realized, the conventional limitation of general in-situ observation stretching equipment is broken through, and various mechanical test forms such as stretching, compression and fatigue can be integrated.

The invention discloses a pipeline switch valve which comprises a valve sleeve, a water closing mechanism and a switch mechanism. The lower end of the valve sleeve communicates with a water swivel. A water insulator is arranged in the valve sleeve, and a pressure cavity is formed by the water insulator and the water closing mechanism. The water closing mechanism comprises a leather cup. A leather cup seat is arranged on the leather cup. A pressure relief hole is formed in the middle of the leather cup seat. A water sealing ring is arranged on the pressure relief hole. The switch mechanism comprises a shaft rod. A cover cap is arranged at the upper end of the shaft rod. A compressed spring is arranged between the cover cap and the valve sleeve so that the shaft rod can have a pressed state and a bounced state. The shaft rod penetrates through the pressure relief hole and is provided with a pressure relief groove. In the bounced state, the shaft rod is in close contact with a sealing ring, in the pressed state, the pressure relief groove of the shaft rod right faces the sealing ring, and liquid in the pressure cavity is drained through the pressure relief hole. The pipeline switch valve can be installed in waterways of a combined shower faucet, the function that each water outlet is controlled independently is achieved, a user can control the water outlet mode clearly and conveniently, and the shower experience that water is discharged out of a plurality of water outlets at the same time can be met.

The invention provides a pull rod mechanism of an injection seat of an injection molding machine, and belongs to the technical field of injection molding machine equipment.The injection seat of the injection molding machine comprises a machine base, a head plate and a linear guide rail, the head plate and the linear guide rail are arranged on the machine base, a slidable pull rod mechanism is arranged on the linear guide rail and connected with the head plate, and an electric injection mechanism is arranged on the pull rod mechanism. The pull rod mechanism comprises an injection table support, a motor is fixedly arranged at one end of the injection table support, an output shaft of the motor is connected with one end of a lead screw, the lead screw is sleeved with a pull rod shaft sleeve, the pull rod shaft sleeve moves front and back in the length direction of the lead screw, and one end of the pull rod shaft sleeve is fixedly connected with a lead screw nut arranged on the lead screw. The other end of the pull rod shaft sleeve is connected with one end of the pull rod shaft, and is provided with a touch component for limiting the movement of the injection seat of the injection molding machine. The pull rod mechanism of the injection seat of the injection molding machine is compact in design, small in overall size, high in precision, high in response speed, high in transmission efficiency, suitable for various injection molding machine types, convenient to assemble and beneficial to reducing the assembly cost.

The invention discloses an elastic piece connector, and the connector comprises a box body and an elastic piece disposed in the box body. The box body is of a hollow structure, and the top of the boxbody is provided with an opening. The interior of the box body is provided with a supporting surface. The elastic piece comprises a bottom plate, a first elastic arm, a first contact part and a secondelastic arm, wherein the bottom plate, the first elastic arm, the first contact part and the second elastic arm are connected sequentially. The bottom plate is disposed on the supporting surface, andthe first contact part stretches out of the opening. The second elastic arm and the bottom plate are arranged in an inclined manner, and extend towards the first elastic arm. The connector is compactand small and exquisite in overall structural design. When an elastic piece is pressed by a product downwards, the first contact part and the product, the second elastic arm and the bottom plate, thebottom plate and the supporting surface form three-point contact, thereby generating a bigger elastic force, and enabling the capability of resisting equal angles to be stronger.

The invention relates to a folding device of strip-shaped laying bed sheet cloth. The device is provided with a cloth folding operation table, and two rectangular cloth folding openings are formed inthe middle position of the table board of the cloth folding operation table side by side; a cloth folding rod box is arranged in the middle position of one side of the table board of the cloth foldingoperation table; a cloth pressing rod set and a cloth folding rod set are arranged in the cloth folding rod box, wherein the cloth pressing rod set is composed of a lower-layer cloth pressing rod, amiddle-layer cloth pressing rod and an upper-layer cloth pressing rod; the cloth folding rod set is composed of a lower-layer cloth folding rod a, a lower-layer cloth folding rod b, a middle-layer cloth folding rod a, a middle-layer cloth folding rod b, an upper-layer cloth folding rod a and an upper-layer cloth folding rod b, and the lower end of each rod is in transmission connection with a corresponding cloth folding rod rotating and driving device; and each cloth folding rod driving air cylinder is used for conducting air path on-off control through a corresponding electromagnetic valve, and each electromagnetic valve is in communication connection with a PLC arranged in the cloth folding rod box. According to the device, the whole device is ingenious and compact in structural design,fast in action, good in cloth folding orderliness effect, high in efficiency and very good in practical use value.

The invention discloses an electromechanical redundancy electronic speed regulator, and the speed regulator is composed of an actuator (1), a sensor and a control unit, wherein the actuator (1) comprises a driving shaft (11), a front end cover (14), a rear end cover (112), a sleeve (17) and an electromagnetic driving assembly arranged in the sleeve (17). An elastic clamping ring accessory (13) isarranged at the top end of the driving shaft (11). The electromagnetic driving assembly is composed of a coil winding (19), an armature (110), a wiring terminal (111), a coil winding outgoing line (13), a rolling bearing (15), a limiting spring seat (16) and a spring (18). According to the electromechanical redundant electronic speed regulator, the actuator (1) can directly exchange with a mechanical speed regulator conveniently and quickly, also can carry out the composite control on devices together with the mechanical speed regulator. Moreover, the size is small, and the regulation precision is high.

The invention discloses a handheld automatic welding head for welding closely-spaced small-diameter metal pipes. The handheld automatic welding head comprises a shell , wherein a servo motor, a transmission part and a welding part are arranged inside the shell; the servo motor is used for driving the welding part to run through the transmission part. An open gear is driven to rotate in a limited space by matching the motor with the transmission part to realize 360-degree welding of U-shaped pipes, so that the essence of the gear transmission is effectively utilized. In combination with shaft transmission, the operating space is saved to the maximum extent while the welding operation is finished. A driven gear is driven by using the motor, and is used for changing the transmission direction, so that the limitation of single welding direction is broken. By adopting the transmission shaft, the open gear can rotate continuously to the opening for welding, so that 360-degree welding is realized, and smooth implementation of various types of movements is ensured.

An embodiment of the invention provides a self-cleaning type static rotary pyrolysis device. The self-cleaning type static rotary pyrolysis device comprises a feed port, a heating pipe, a chain plate, a driving wheel, a driven wheel, a coke cleaning wheel, a scraper coke extractor, a scraper tar extractor, a partition plate, a coke outlet, a pyrolysis gas outlet and a tar outlet. When the device runs, materials fall into the left side of the chain plate from the feed port, and the chain plate drives the materials to move from left to right; in a moving process, the heating pipe above the chain plate continuously heats the materials, so organic components of the materials are heated and decomposed; generated pyrolysis gas is discharged from the pyrolysis gas outlet; generated wall-adhered coke blocks are continuously cleaned by the coke cleaning wheel which is propped against the outer wall of the lower side of the chain plate, fall into the scraper coke extractor below the coke cleaning wheel and are conveyed to a coke outlet for discharging; and generated tar falls into the scraper tar extractor below the chain plate under the action of gravity and is conveyed to a tar outlet for discharging. The self-cleaning type static rotary pyrolysis device is simple and compact in structural design, simple to clean and maintain, high in automation degree, high in decoking effect, efficient and stable to use.

The invention discloses a locking device and method. The locking device is used for locking between a first main body and a second main body and comprises a lock body and a lock hook, wherein the lockhook is fixedly installed on the edge of the first main body and comprises a main lock hook body, the lock body is hinged to the edge of the second main body and comprises a rotatable movable block,a spring bolt, an unlocking sliding block and an elastic piece are arranged on the movable block, the unlocking sliding block is fixedly connected with the spring bolt and can drive the spring bolt tostretch out and draw back by shifting the sliding block, and the elastic piece is connected with the spring bolt and used for enabling the spring bolt to have the stretching-out trend. The locking device serves as a complete set of independent mechanism, long arm piece and low-rigidity connecting structure design is avoided, the structure is exquisite and compact, the appearance is attractive, anexternal interface is clear and concise and simple, assembling is convenient and quick; and the pre-tightening force does not need to be adjusted after installation, a safe and reliable pre-tightening force can be obtained after the device is locked, and the phenomenon that the device is not ideal in deformation locking is effectively eradicated.

The invention relates to a high-resolution miniature lens for daytime and night. An optical system of the lens is sequentially provided with a front set A with the focal power being negative and a rear set B with the focal power being positive in the incidence direction of light. The front set A is sequentially provided with a positive crescent lens A-1, a negative crescent lens A-2 and a biconvex lens A-3. The rear set B is sequentially provided with a positive crescent lens B-1, a single concave lens B-2, a gluing set closely connected with a biconvex lens B-3 and a biconvex lens B-4. The lens can form clear images in the light environment of daytime, also can form clear images in the low-light-level environment of night through infrared light supplementation, has the advantages of being small in distortion, large in relative aperture, high in resolution, high in performance cost ratio, wide in application range and the like and can adapt to the requirement of 5-mega-pixel high-resolution video shooting, thereby being a mainstream product for home monitoring.

The invention discloses a solvent-free complex method of high temperature cooking complex films and bags and a complex device thereof. The complex method comprises the following steps of preprocessing a first film, placing the first film on a first unreeling device and passing through a guiding roller according to a complex trend of the film, and preheating an adhesive, a gumming device and a complex heat drum; placing a second film on a second unreeling device and passing through the guiding roller according to the complex trend of the film, regulating glue inlet capacity of the gumming device, producing, and finally rolling, curing and cooling. The complex device comprises the first unreeling device, the gumming device, the second unreeling device, the complex heat drum, a rolling device and a pulling roller wherein are arranged on a rack and a glue adding barrel for adding the adhesive in the gumming device. The complex method and the complex device provided by the invention have the advantages that the environmental pollution is not generated, the energy consumption is low, the space occupation is small and the like, the method can utilize air humidity under a certain environment temperature, and mechanical properties of the complex films are effectively improved.