40results about How to "Simple and reliable structure" patented technology

The utility model discloses a workpiece rotating device, including floor, the upper end fixed mounting of floor has the interface board, the upper end fixed mounting of interface board has the foot bolt, the upper end center fixed connection of foot bolt has the rodless cylinder, and the both sides fixed connection of rodless cylinder has the slide rail, the inside fixed of slide rail has and inserts the mouth, the upper end fixed connection of slide rail has the sliding block, and the inside fixed mounting of sliding block has the lock nail seat, the inside fixed mounting of lock nail seat has the fixed nail, the upper fixed mounting of sliding block has the receiving station, to solve the hosiery setting machine that the above -mentioned background art proposes is the equipment that is used specially for this craft, but the mechanism of setting machine mobile die carrier is the long strip shape structure, and the space is big to the longitudinal occupation, and the workpiece passes through the chain structure and drives the die carrier to move, and the chain structure is relatively complex, when the chain damage needs the maintenance, and the cost is higher, lead to the problem of hosiery production and maintenance cost increase.

The utility model provides a kind of headrest with cosmetic mirror, car seat and vehicle, it is related to the technical field of automobile parts, the headrest includes headrest body, cosmetic mirror subassembly, damping device and limiting device, and headrest body rear side is equipped with accommodating cavity;Cosmetic mirror subassembly is reversibly set in accommodating cavity by pivot, including triangular installation body and cosmetic mirror, installation body has adjacent first surface and second surface, first surface fixed cosmetic mirror, and second surface is the decorative surface consistent with the curvature of headrest rear side outer surface.Cosmetic mirror subassembly can be switched between the use state that cosmetic mirror is exposed and flush with headrest and the storage state that decorative surface is exposed and flush with headrest.The design realizes the balance of hidden storage and convenient use of cosmetic mirror, flush with headrest surface when storage, stable adhesion without space when use, solve the problem that traditional cosmetic mirror is complicated to operate and occupies space, improve practicality and aesthetic property, especially suitable for rear passenger use.

This application relates to a photovoltaic cell conveying device, comprising: a drive unit; a conveyor belt wound around the drive unit, the conveyor belt being capable of cyclic movement under the drive of the drive unit, the conveyor belt having a negative pressure chamber, the chamber wall of which has adsorption holes connecting the negative pressure chamber to the external atmosphere; wherein, the conveyor belt is capable of undergoing recoverable deformation under the action of the drive unit to change the volume of the negative pressure chamber. In the above-mentioned photovoltaic cell conveying device, the conveyor belt cyclically moves under the drive of the drive unit to realize the conveying of the cells. Since the formation of the negative pressure environment in the negative pressure chamber relies solely on the action of the drive unit and the deformation of the conveyor belt itself, the structure of this photovoltaic cell conveying device is simple and reliable, eliminating the need for external vacuum equipment and complex connecting pipelines, thus avoiding the problems of large space occupation, high energy consumption, high noise and heat generation caused by the installation of external vacuum equipment, and significantly reducing production costs.

The application discloses an intelligent internet unmanned aerial vehicle (UAV) box and an automatic docking and locking control system thereof, and belongs to the technical field of UAV cargo hoisting. The system comprises a suspension connection unit, an intelligent cargo box unit, a positioning unit, a mechanical lock unit and an intelligent control unit. When the suspension unit and the positioning unit are magnetically connected, the intelligent control unit determines the locking or releasing mode through the number of signal contact connections; in the locking mode, a power-on timing control module supplies a first direction current to an electromagnetic adsorption module, sequentially drives a lock mechanism to close, and realizes mechanical locking; in the releasing mode, a reverse current is supplied, the lock mechanism is sequentially driven to open, and automatic unloading is realized. The system realizes full-process automation of UAV hoisting, has a high-reliability double-locking mechanism, effectively prevents aerial misrelease, is integrated into a smart internet network, and significantly improves the safety, efficiency and informatization level of hoisting operation.

The application relates to the technical field of injection molds, and particularly discloses an automobile interior part injection mold with a cooling structure, which comprises an injection machine frame and an injection unit; the injection unit is arranged on the injection machine frame; the injection unit comprises a fixed mold plate, and further comprises a demolding unit and a receiving unit; the demolding unit comprises a fixed base and a movable mold plate; the fixed base is fixedly connected to the injection machine frame; a guide rod and a cylinder one are arranged on the fixed base; the output end of the cylinder one is connected to the movable mold plate; a pulse air cooling type global cooling system is constructed; cooling air is directly output to the product forming surface through the distributed air holes on the side wall of a mold groove and the surface of a convex mold; the bottleneck of the shape following property limited by the traditional water cooling is broken; the uneven cooling of a special-shaped cavity can be realized; the product temperature field distribution is effectively balanced; and the internal stress and warping deformation during the molding are inhibited.

This invention provides an organic substrate preparation device and method suitable for rose cultivation, relating to the field of organic substrate preparation technology. The device includes a telescopic mechanism comprising a bidirectional mechanism and a driving mechanism. The telescopic mechanism provides not only circumferential stirring torque but also vertical mixing torque, thus ensuring thorough mixing of the organic matter in multiple directions. The bidirectional mechanism generates irregular vertical movement in response to circumferential stirring, further enhancing the vertical mixing of the organic matter and achieving multi-dimensional composite stirring. This significantly improves mixing uniformity and fermentation efficiency. The invention utilizes a unique spatial linkage (side rod, inner / outer ball sleeve) and flexible transmission (unidirectional mechanism) design to intelligently decompose the unidirectional rotation of the driving shaft into a superposition of circumferential revolution and axial reciprocating motion of the stirring components (upper / lower stirring sleeves).

This application relates to the field of ship control, providing a hovercraft control method and hovercraft, including: in a static power generation mode, disengaging the clutch of the hovering fan, energizing the generator, and having the gas turbine drive the generator to generate electricity through a reducer, driving the propulsion fan to rotate with a reverse pitch, generating a reverse airflow to cool the generator, reducer, and gas turbine; when a sudden load reduction is detected in the generator, increasing the propulsion fan pitch through a pitch controller, increasing the load torque generated by the propulsion fan to compensate for the sudden load reduction and preventing the gas turbine from overspeeding; the hovering fan stops rotating, causing the hovercraft to contract, and the hovercraft contacts the ground through a fixed shovel, the unidirectional resistance generated by the fixed shovel balances the pull generated by the increased propulsion fan pitch, maintaining the stability of the entire vessel. By integrating the generator into the hovercraft's propulsion system and utilizing the adjustable pitch characteristic of the propulsion fan to cope with sudden load reduction, the integration of emergency power and power mobility are improved.

The invention relates to the field of agricultural product processing equipment, in particular to a phase adjusting structure and an automatic adjusting tea frying machine based on the phase adjusting structure, the phase adjusting structure comprises a driving part and a transmission assembly, the transmission assembly comprises a transmission shaft, a connecting rod group and a swing rod, and the phase adjusting structure further comprises an eccentric wheel, the screw rod and screw sleeve adjusting mechanism is used for adjusting the distance between the fulcrum of the swing rod and the eccentric wheel, so that the initial angle and the swing amplitude of the frying plate are adjusted. The machine further comprises a rack, a controller and a frying plate; the synchronous belt transmission part is connected with the movable part; and the manual driving part and the automatic driving part are connected with the synchronous belt transmission part. The whole rigidity is effectively improved, vibration in the operation process is restrained, the repeated precision of the motion trail of the frying plate is guaranteed, the service life of the structure is prolonged, complexity and control redundancy of the mechanical structure are avoided, automatic adjustment is achieved, the machining efficiency is higher, and safety is higher.

The application belongs to the technical field of lighting devices, and provides an adjustable swimming pool lamp, which comprises a lamp holder, an extension rod, a power supply box and a lamp body. The lamp holder is provided with a mounting plate, and the bottom of the mounting plate is fixedly connected with a hinged seat provided with a locking mechanism. One end of the extension rod is hingedly fixed with the lamp holder through the hinged seat. The power supply box is fixedly connected with the other end of the extension rod along the horizontal direction. The lamp body is arranged on the side of the power supply box away from the extension rod and is fixedly connected with the power supply box. The inner cavity of the lamp body is provided with a light emitting part on one side and a light reflecting part on the other side. The application optimizes the structural form and light source layout of the lamp, and combines with the adjustment and reflection cooperative structure design, so that the upward emitted top light is uniformly diffused after reflection, the problems of glare and uneven illumination are effectively avoided, the lighting comfort of the swimming pool area is significantly improved, the light angle and area can be flexibly adjusted through the adjustment mechanism, the lighting needs of different swimming pool sizes and use scenes are adapted, and the defect that the existing swimming pool lamps have fixed illumination area is solved.

The invention provides a power distribution box, and relates to the technical field of electrical equipment, the power distribution box comprises a box body and a wire arrangement structure, a stand column is arranged in the box body, a back plate is arranged on the stand column, the wire arrangement structure comprises a fixed groove plate and a movable groove plate, and the movable groove plate is movably arranged in a wiring groove of the fixed groove plate. The movable groove plate can move up and down relative to the fixed groove plate and move in the height direction of a second side plate of the fixed groove plate, first side plates on the two sides of the movable groove plate are rotatably and elastically connected to a first bottom plate of the movable groove plate, and the opposite sides of the two first side plates are each provided with at least one pair of elastic wire clamp sets. The elastic wire clamp group comprises a fixed elastic clamping ring and a movable elastic clamping ring which are arranged in a staggered mode in the vertical direction, and the movable elastic clamping ring is elastically connected with the first side plate. According to the wire arrangement structure, the wire harness can be kept tightened and regular when the distribution box is in a normal operation state, and the wire harness constraint can be released during maintenance or transformation, so that the overall maintainability and operation reliability of the distribution box are improved.

The utility model relates to a kind of shaking amount control mechanism for vehicle interior trim, it is characterized in that, it includes: shell;Connecting rod, connecting rod is installed in the accommodating cavity of shell and can move, connecting rod has connecting rod part, connecting rod part is more from accommodating cavity in extreme position of extension than in initial position, connecting rod part is equipped with recess, recess is open to shell, first elastic element and damping block are equipped in recess, first elastic element is supported in recess with its one end and is supported in damping block with its other end, in the mounting state of first shell part and second shell part, first elastic element is in compression state, and first elastic element is based on its return force and press damping block to shell on. Technical effects include: the combination of recess, elastic element and damping block is used, the anti-shaking design of connecting rod in moving direction is realized.The utility model is also related to a kind of position adjusting device for vehicle interior trim.

This invention provides a mass production machining device for door pillars, belonging to the field of door pillar mass production machining technology. It includes a base, with mounting brackets mounted on the top of the base. The mounting brackets have equidistant first limiting grooves and equidistant mounting grooves on their tops. Four mounting brackets are equidistantly arranged on the base, and one mounting bracket located on one side edge of the base has equidistant first limiting blocks on its top. This invention, by setting up an auxiliary positioning mechanism and a limiting and fixing mechanism, allows the eight first sliding grooves to be quickly positioned to the machining position on the top of the base in one go, avoiding multiple alignment adjustments and improving positioning efficiency. Furthermore, the limiting and fixing mechanism further limits and fixes the transported profile body, ensuring that the profile body remains stable, does not shift, and does not shake during processing, ensuring consistent processing benchmarks.

The invention discloses an unbalanced bridge method direct current insulation detector with a compensation correction function. The detector takes a microcontroller as a core and is connected with an unbalanced bridge detection module, a key setting module, a communication module, a detection indication module and an alarm output module; the unbalanced bridge detection module comprises an unbalanced bridge circuit and a signal conditioning circuit, the unbalanced bridge circuit is used for establishing an unbalanced bridge loop between the positive electrode and the negative electrode of the detected direct current system and the ground, and when the direct current system has insulation imbalance, an unbalanced voltage signal is output; after being amplified and filtered by the signal conditioning circuit, the signals are input into the microcontroller, the microcontroller calculates to obtain positive electrode resistance to ground and negative electrode resistance to ground and compares the positive electrode resistance to ground and the negative electrode resistance to ground with a threshold value, and when a detection result is lower than the threshold value, an alarm is triggered or a fault loop is cut off. According to the invention, a hardware and software combined compensation correction technology is adopted, and the method has the advantages of fast detection speed, high precision, strong anti-interference capability and flexible communication.

The invention discloses an insert positioning mechanism, an insert positioning method and an injection mold. The insert positioning mechanism comprises a positioning piece, an elastic piece and a limiting structure. The positioning piece is assembled in the mold body, and the lower end face of the positioning piece is provided with an abutting area and a guide face gradually away from the insert. The elastic piece exerts pretightening force to enable the abutting area to abut against the insert. During injection molding, the melt entering the gap between the guide surface and the insert generates an upward component force and a downward component force. When the upward component force is not larger than the pre-tightening force, the positioning piece and the downward component force jointly restrain the insert. And when the upward component force is larger than the pre-tightening force, the positioning piece retreats to the limiting structure to be separated from the insert, so that the injection molding melt completely wraps the insert, and the downward component force continuously restrains the insert. Dynamic balance of fluid force and mechanical force is utilized, the receding time of the positioning piece is accurately controlled, the insert is effectively prevented from shifting, and the upper surface of the insert is completely wrapped by injection molding melt.

This utility model relates to the field of electronic circuit manufacturing equipment technology, and discloses a flexible clamping board flipping conveyor line, including: a frame, on which a feeding conveyor line, a flipping device, and a discharging conveyor line are sequentially arranged along the conveying direction; the flipping device includes two flipping structures arranged opposite each other on both sides of the frame, and the flipping structure includes: a rotating mechanism; a guiding component, disposed at the output end of the rotating mechanism, including two rows arranged in parallel vertically, which together form a guide groove for accommodating the board, the rotating mechanism is used to drive the guide groove to rotate around its central axis in the depth direction, and to connect one end of the guide groove with the feeding conveyor line and the other end with the discharging conveyor line; this utility model controls the release and reset function of the elastic component through a traction mechanism, automatically completing the clamping and releasing actions, with a high degree of automation, reducing additional manual intervention or complex independent drive systems, and making the equipment structure simpler and more reliable.

The utility model relates to material processing technical field, and a kind of civil aviation material polishing equipment of easy to hold;Sliding platform is slidably arranged on the upper portion of support platform by slide rail pair, and two multi-point suction disc flexible tooling are fixedly arranged on the upper portion of sliding platform, support shaft is fixedly arranged on the rear side of support frame, lifting mechanism connected with support shaft is equipped on support platform, overturning mechanism connected with lifting mechanism is equipped on support shaft, linkage switching mechanism connected with overturning mechanism is equipped on sliding platform, and one end of electric telescopic rod is equipped with clamp, by setting two independent multi-point suction disc flexible tooling, the different curvature of workpiece front and back two sides is respectively adapted, the profiling adsorption support of "one side one tooling" is realized, and the pure mechanical linkage of lifting mechanism, overturning mechanism and linkage switching mechanism is matched, automatic completion is taken piece, overturning, shift and reposition in one clamping cycle, without manual intervention, improve polishing precision and efficiency, reduce labor intensity and workpiece damage risk.

The utility model discloses an overhead power transmission hoisting device, which belongs to the technical field of power transmission engineering and comprises a traveling base, a hoisting winch assembly, a front top plate, a telescopic beam, a front pressing frame and a locking bolt. The front top plate is fixed to the front portion of the walking base and forms a vertical end face abutting against a tower foundation pile, the telescopic beams are installed on the two sides of the upper portion of the front top plate in a bilateral symmetry mode, the front pressing frame is installed at the front ends of the telescopic beams, and the front top plate, the telescopic beams and the front pressing frame form a door-shaped frame structure with the adjustable opening degree. And the locking bolts are used for clamping the tower foundation piles on the inner side of the opening of the door-shaped frame structure. The device not only solves the problems that a traditional crane crushes farmland and is high in cost, but also can adapt to complex terrains to realize efficient and safe operation, and is particularly suitable for accurate conveying of small-batch materials, and the construction cost is greatly reduced, and the hoisting precision and the field adaptability are improved due to the miniaturized design of taking the tower foundation pile as a fulcrum.

This utility model discloses a silicon carbide substrate wafer annealing fixture, belonging to the field of semiconductor manufacturing equipment technology. The annealing barrel of this silicon carbide substrate wafer annealing fixture is formed by the joining of two symmetrically arranged annealing half-barrels. The side walls connecting the two annealing half-barrels are respectively provided with mutually cooperating protrusions and mating grooves for positioning and fitting, thus enclosing the two annealing half-barrels together to form a closed annealing cavity, the interior of which has a groove for supporting the silicon carbide wafer. A lifting shaft is connected to the annealing barrel through a fixing component, used to drive the closed annealing cavity to perform lifting and rotating movements. The lifting shaft drives the annealing barrel to perform lifting and rotating movements, significantly improving the heating uniformity of the wafer during high-temperature annealing. The dynamic adjustment function can alleviate thermal stress caused by differences in the thermal expansion coefficients of materials during heating and cooling, preventing wafer warping or cracking.

The utility model relates to the technical field of door leaves, and discloses a novel aluminum alloy door leaf sectional material, which comprises an arc-shaped vertical frame sectional material, a vertical frame flapper sectional material and a sealing glue solution, and is characterized in that the arc-shaped vertical frame sectional material is an integrally formed part, and arc-shaped decorative panels are arranged on two sides of the top of the arc-shaped vertical frame sectional material; a panel mounting groove is formed in the center of the arc-shaped vertical frame profile and used for mounting a glass panel, connecting tables are arranged at the bottoms of the two ends of the decoration panel, connecting feet are arranged on the inner sides of the connecting tables in a downward extending mode, and clamping feet are arranged on the panel on the outer sides of the connecting feet. A reinforcing groove plate is arranged at the bottom of the panel mounting groove in an extending mode, and small cavities are formed in the positions, located above the reinforcing groove plate, of the two sides of the panel mounting groove; through the unique design of the connecting seat of the arc-shaped vertical frame section bar, the connection distance between the whole aluminum alloy door leaf and the hinge, the door frame or the wall surface is shortened and firmer, the stability of the connection between the aluminum alloy door leaf and the hinge is greatly improved, and the whole door leaf is more stable and durable.

The invention discloses a vehicle battery pack connecting device, and belongs to the technical field of battery pack charging for battery swapping, the vehicle battery pack connecting device comprises a base, an electric connector and a trigger piece, when a battery pack is placed on the trigger piece, the trigger piece can be displaced under the pressure effect of the battery pack, and the electric connector is connected with the base; the electric connector is driven by the trigger piece to move downwards and move in the horizontal direction at the same time so that the electric connector can get close to the battery pack and be electrically connected with the battery pack. In the process that the battery pack is placed on the triggering piece till the battery pack is electrically connected with the electric connector, the placing stability of the battery pack on the triggering piece is high, and meanwhile due to the fact that the movement track of the electric connector is constant, the battery pack can be stably placed on the triggering piece. The electric connector certainly moves along the fixed movement track until the electric connector is electrically connected with the battery pack, the phenomenon of connection dislocation caused by movement deviation of the battery pack does not exist in the electric connection process of the battery pack, and the electric connection efficiency and the electric connection stability of the battery pack connecting device are improved.

A mechanical adjustment type fault reproduction and positioning test device disclosed by the present invention comprises a main body frame, a panel is fixed on the front surface of the main body frame, a conductive seat is arranged at the lower part of the left side of the panel, and a movable conductive assembly is arranged on the panel above the conductive seat. A horizontal sliding piece is arranged at the center of the surface of the panel, a simulation sensor probe is arranged on the horizontal sliding piece, an induction target piece is arranged on the portion, located on the right side of the simulation sensor probe, of the panel, wire bases are symmetrically arranged on the right side of the surface of the panel, and the wire bases are connected through an arc-shaped wire. A wire breaking driving piece is arranged between the panel and the wire, and an ejector rod is connected into the wire breaking driving piece in a sliding mode. The device adopts a pure mechanical adjusting structure, abandons a traditional electric control fault injection module and complex programs, realizes fault regulation and control through mechanical parts such as the screw rod, the sliding seat adjusting piece and the eccentric wheel, has no electronic interference hidden danger, and is high in durability of the parts and low in maintenance cost.

The invention discloses a function safety protection circuit of a motor controller, and the circuit comprises an operator which is used for generating a communication signal and a trigger signal; the motor driver comprises an MCU, a safety protection circuit and a driving circuit, and the MCU is used for receiving a communication signal and sending out a PWM signal after obtaining the communication signal; the safety protection circuit is arranged between the MCU and the driving circuit and is used for closing the safety protection circuit after receiving the trigger signal, so that the driving circuit can receive the PWM signal; and the driving circuit is used for receiving the PWM signal and driving the circuit to drive the motor to work after obtaining the PWM signal. The safety protection circuit is independently arranged between the MCU and the driving circuit and does not depend on normal execution of MCU software, unexpected operation of the motor is prevented from the physical level, single fault safety is truly achieved, and the intrinsic safety level of motor control is remarkably improved.

The invention relates to the technical field of automatic packaging and material arrangement, in particular to an automatic arranging and forming device and method for multiple products. The device comprises a rack, a feeding crawler belt, a material arranging and forming mechanism and a discharging channel. The material arranging and forming mechanism comprises a circulating conveying unit, a plurality of independent material boxes and a material pushing unit. The circulating conveying unit drives the multiple material boxes to move in a stepping mode along the circulating path. A discharging opening of the feeding crawler belt corresponds to a material receiving station on the circulation path, and products are put into the material boxes one by one during the pause period of the material boxes; the pushing unit integrally pushes out the group of products after the preset number of material boxes are full; the discharging channel guides the product sets to be output. Through the working mode of continuous material receiving and grouped pushing of the circulating material boxes, seamless connection of continuous material receiving and batch forming is achieved, the efficiency bottleneck caused by empty bin waiting of traditional equipment is overcome, meanwhile, the modular material box design facilitates adjustment of the grouping number and the arrangement form, and the flexibility, the production efficiency and the integration degree of the equipment are improved.

The utility model relates to an electric release door lock inner opening double-pull unlocking mechanism through transition piece drive relates to the field of automobile door lock, and the unlocking mode is as follows: when the door lock is in the armed state, first pull the inner opening pull rod rotates around the hole, sequentially drive the inner opening double-pull transition piece, the central control transmission transition rod, the central control transmission rod, the central control transmission gear, the double-pull transmission rod, the double-pull release transition rod and the inner opening transition rod movement, thereby realize the inner opening transition rod place and mechanical solution central control insurance of armed state, the second pull inner opening pull rod can directly rotate the electric opening release rod through the inner opening transition rod, the electric opening release rod rotates and promotes the outer opening release rod, and the outer opening release rod rotates and releases the ratchet pawl through the ratchet pawl release rod, and completes the unlocking. The utility model can realize the same inner opening double-pull unlocking with mechanical lock, and solves the technical defects that the existing electric opening lock system cannot mechanically remove the central control lock under the power-off working condition.

The invention relates to the technical field of water turbine parts, and discloses a carbon brush grinding machine which comprises a workbench, a rotating table, a carbon brush clamp and a grinding mechanism, the rotating table is rotationally connected with the workbench, the carbon brush grinding machine is characterized in that the rotating table is located below the table top of the workbench, the end of the rotating table is an extension part and extends out of the table top, and the carbon brush clamp is connected with the grinding mechanism. The carbon brush clamp is arranged on the extending part, and the rotating table drives the carbon brush clamp to rotate. The structure is simple and reliable, and the comprehensive cost is greatly reduced; maintenance frequency and cost are obviously reduced, and operation and maintenance pressure of a power station is reduced.

A conversion type motor vehicle damping device comprises a converter, a damping cylinder and a hydraulic pipeline. The damping cylinder and the converter are filled with hydraulic oil and are connected through a hydraulic pipeline. The converter is formed by coaxially installing a driving cylinder and a pressure cylinder, a piston and a piston rod are installed in the converter, by means of the conversion effect of force, small elastic pressure is applied to the piston of the converter, the piston rod can be pushed to extrude hydraulic oil, large pressure intensity is generated and acts on the damping cylinder, and the piston rod generates large stretching supporting force. The damping cylinder is connected with a wheel support of the motor vehicle, can drive a piston in the damping cylinder to transmit hydraulic oil to the converter along with jumping of wheels, and counteracts the piston of the converter to enable the piston to move so as to absorb upward impact on the wheels. The damping cylinder is controlled by applying a force conversion principle, so that the damping device has the advantages of convenience in adjustment, stability, reliability and no need of high-pressure nitrogen and air bag sealing.

This utility model belongs to the field of baler technology and discloses a forced feeding device for a round bale baler, including a spiral auger device. A rotor feeding component is rotatably installed inside the spiral auger device. A baffle plate is adjustablely installed on the spiral auger device above the output end of the rotor feeding component. A pickup component is rotatably installed on the spiral auger device at the input end of the rotor feeding component. A straw pressing roller assembly is hinged to the spiral auger device above the pickup component. A straw pressing rake assembly is fixedly installed on the straw pressing roller assembly. The overall structure of this utility model is simple and can ensure the feeding effect of the baffle plate during the operation of the forced feeding device. By adjusting the installation angle of the baffle plate, material leakage and blockage are avoided, thus improving the usage effect.

The application discloses a heat-preservation pipeline fixing support without damaging a heat-preservation structure, which comprises a fixed wing ring fixed on the periphery of a working steel pipe, a skirt is arranged on the two sides of the fixed wing ring, an installation gap is formed between the skirt and the working steel pipe, an outer protective pipe is arranged in the installation gap, a heat insulation layer is arranged between the outer wall of the outer protective pipe and the inner wall of the skirt, and a heat preservation layer is arranged between the inner wall of the outer protective pipe and the outer wall of the working steel pipe; the end of the skirt away from the fixed wing ring is wound with a sealing belt, and the sealing belt is used for connecting and sealing the skirt and the outer protective pipe; the heat-preservation pipeline fixing support is reliably connected with the working steel pipe through the fixed wing ring, the stability of the pipeline under the action of thermal expansion and cold contraction and external force is ensured, the two outer protective pipes are connected to the two sides of the fixed wing ring respectively, the two-section outer protective pipe cooperates with the skirt and the heat insulation layer to form a complete heat-preservation support structure on the two sides of the fixed wing ring, the heat-preservation performance of the pipeline is ensured, the pipeline corrosion resistance is improved, and the service life of the pipeline is prolonged.

The application discloses a kind of offshore flexible connecting device of pipe, for the expansion connection between several pipe units, each pipe unit is composed of several cylindrical pipes, adjacent pipe units are connected by setting the flexible connecting device in the end of cylindrical pipe, and the end of cylindrical pipe arranged with flexible connecting device is called the connecting end of pipe unit;Flexible connecting device includes two types of A-type flexible connecting device and B-type flexible connecting device;Connecting end A and connecting end B connected with each other are connected with each other by A-type flexible connecting device and B-type flexible connecting device respectively;A-type flexible connecting device and B-type flexible connecting device are respectively provided with mutually fitting concave-convex rubber fender blocks;The edge side of connecting end A and connecting end B is uniformly provided with connecting plate, and the connecting plate opposite to each other between connecting end A and connecting end B is connected by steel chain, and both sides of each connecting plate are provided with reinforcing rib plate.

The utility model discloses a high pressure type coffee extraction device, and it improves the coffee quality through two-stage dynamic extraction mechanism: the first stage utilizes the steam generated by steam generating device to flow into the upper shell of extraction device through pipeline, and the steam flows to steam buffer area through the first steam perforation of upper shell, and the steam flows to coffee powder through the second steam perforation of tabletting, and the coffee powder is wetted, and after the upper part or all of coffee powder in coffee powder containing area is wetted, the second stage is entered: the tabletting falls and compacts coffee powder through pressure under the pressure trigger of extraction device, and the contact density of steam and coffee powder is greatly increased, and the penetration efficiency bottleneck of traditional pure steam extraction is broken. The design realizes the synergistic effect of "wetting first and compacting later" without external mechanical intervention, not only improves the extraction uniformity and soluble matter extraction rate, but also endows the coffee liquid with more abundant oil and mellow taste, and the structure is simple and reliable, and the operation degree of automation is high.