176results about How to "Prevent reversal" patented technology

The shutdown of a compressor (10) installed in a refrigerant circuit (2) in air conditioning or refrigeration system is controlled so as to prevent unpowered reverse rotation of the compressor. Prior to terminating electric power to the compressor drive motor (24), the pressure within the system is relieved and substantially equalized across the compressor, thereby eliminating the possibility of unpowered reverse rotation of the compressor at shutdown. Pressure relief and equalization may be achieved by reducing the operating speed of the compressor to a low forward speed for a period of time prior to deenergizing the compressor drive motor. Pressure equalization may also be achieved by driving the compressor in reverse rotation prior to deenergizing the drive motor.

The invention relates to the technical field of wafer cleaning devices, and discloses a megasonic semiconductor wafer cleaning device which comprises a megasonic machine, a cleaning box and a semiconductor wafer, the cleaning box is arranged on the outer side of the megasonic machine, and the semiconductor wafer is arranged above the cleaning box. A rotating assembly and a shaking assembly which are used for assisting in cleaning semiconductor wafers are arranged above the cleaning box, a fixing assembly which is used for fixing the semiconductor wafers of different sizes is arranged above the cleaning box, and through the arrangement of the rotating assembly and the shaking assembly, the surfaces of the wafers can be covered more comprehensively in a composite motion mode, so that the cleaning efficiency is improved. The transmission of the worm gear rod and the worm has a self-locking characteristic, so that reverse rotation and shaking in the movement process can be effectively prevented, the rotation stability is ensured, wafer damage or non-uniform cleaning caused by unstable movement when a traditional device meets complex movement requirements is avoided, mutual interference generated among different driving mechanisms is reduced, and the service life of the device is prolonged. And the reliability and the compactness of the device are improved.

The invention relates to the technical field of concrete strength detection, and particularly discloses a concrete strength detection device and method based on hydraulic engineering supervision. The concrete strength detection device comprises a pressure bearing mechanism which is arranged at the bottom of the inner side of a machine body and is used for being matched with a downward pressing mechanism to detect the compressive strength of a concrete test piece; the driving mechanism drives the limiting mechanisms arranged in an annular array to clamp the concrete test piece from the side wall of the concrete test piece, so that the center of the concrete test piece is vertically aligned with the center of the bearing plate, and the downward pressure of the downward pressing mechanism on the concrete test piece is stably distributed on the concrete test piece; the detection precision is improved, repeated adjustment by workers is not needed, the detection efficiency is improved, the position of each limiting plate is conveniently mastered through the monitoring assembly and the identification assembly, the position of the deviated limiting plate is adjusted through the adjusting assembly, and the concrete compressive strength can be conveniently detected for a long time.

The utility model provides an electric pipeline cutting machine, and belongs to the technical field of pipeline cutting. The electric pipeline cutting machine comprises a main body, a cutting mechanism and a clamping mechanism, the main body comprises an L-shaped base, a box body is installed at the upper end of a vertical plate of the L-shaped base in an embedded mode, the inner wall of the box body is rotationally connected with an inner gear ring through a bearing, and a connecting ring is installed on the outer side of the inner gear ring; the end, away from the connecting ring, of the circular plate is rotationally connected with a first rotating shaft and a second rotating shaft, a second gear is installed outside the first rotating shaft, a support is installed on the side, away from the circular plate, of the second gear, a second motor is installed outside the support, and the output end of the second motor penetrates through the support and is sleeved with a saw blade. Transverse plates are movably inserted in the pair of mounting plates, the upper ends of the transverse plates are movably connected with a pair of U-shaped seats, and the upper ends of the pair of U-shaped seats are provided with pressing wheels, the practicability of the pipeline cutting machine can be effectively improved, and the pipeline cutting machine has high practical value.

The utility model discloses a one-way machine tail wheel, which belongs to the technical field of aerial passenger devices and comprises a machine tail wheel body and a mounting seat, a steel wire rope body is rotatably connected to the outer side of the machine tail wheel body, a rotating rod is mounted on the inner side of the machine tail wheel body, and two mounting frames are mounted on the outer side of the rotating rod. Limiting nuts are mounted on the periphery of the mounting base, rotating rods are rotationally connected to the bottoms of the two mounting frames, the tops of the two mounting frames are connected with the bottom of the mounting base through the multiple limiting nuts, an anti-collision mechanism is mounted on one sides of the two mounting frames, and a mounting nut is mounted at one end of each rotating rod. According to the mining aerial passenger device, the anti-collision mechanism is arranged, so that impact force generated by most of collision is absorbed, the protection effect is good, the problem that the wheel body of the machine tail wheel is prone to being damaged during collision is solved, safety is good, reliability is high, the market prospect is wide, and the safety performance of the mining aerial passenger device in the operation process is greatly improved.

The present invention discloses a double-drill-bit building wall drilling device, including a shell, a power device, a cooling device and a drilling device, characterized in that a power device is provided at one end of the shell, a cooling device is provided at one side of the power device, a drilling device is connected to one side of the cooling device, and the drilling device includes a first transmission mechanism and a drilling mechanism. Beneficial effects: When the power device is running, the drilling device is driven to drill holes in the wall, and the cooling device is used to cool the drilling device while drilling holes, so that the temperature of the drilling device is prevented from being too high and damaged, and the service life of the machine can be effectively extended. When the power device is running, the drilling mechanism is driven to run through the first transmission mechanism, and the wall is drilled through the coaxial reversal of drill bit 1 and drill bit 2.

The invention belongs to the technical field of power equipment, and particularly relates to a power construction wire tightening device which comprises a bottom plate, a handle is fixed to one end of the top of the bottom plate, a plurality of universal wheels are installed at the bottom of the bottom plate, a pair of first vertical plates distributed on the two sides are fixed to the top of the bottom plate, and a same main shaft is rotationally connected between the two first vertical plates and fixedly sleeved with a winding drum. A rocking handle is fixed to one end of the spindle, and the other end of the spindle is connected with a stopping assembly. According to the cable winding device, the device is moved to a set position through the handle, then the free end of the cable is wound on the winding drum for several circles, then the main shaft is rotated through the rocking handle to drive the winding drum to rotate, the winding drum can wind the cable, and therefore the cable is gradually tensioned; and the main shaft is fixed by the stopping assembly, so that the winding drum is prevented from rotating reversely.

The utility model discloses a manual tire expander which comprises a connecting rod, the top of the connecting rod is provided with a plurality of tooth grooves, the outer wall of the connecting rod is sleeved with a sliding sleeve in a sliding mode, a gear is rotationally connected between the inner walls of the two sides of the sliding sleeve, and the gear is meshed with the tooth grooves. And a limiting clamping jaw is rotationally connected between the inner walls of the two sides of the sliding sleeve, the limiting clamping jaw is meshed with the gear, and a rotating frame is rotationally connected between the outer walls of the two sides of the sliding sleeve. The adjusting handle is pressed downwards to drive the pressing claw to move downwards, so that the gear is pushed to rotate clockwise, then the sliding sleeve is driven to move on the connecting rod under the meshing action of the gear and the tooth groove, the second opening frame is driven to be far away from the first opening frame, and then a tire is expanded outwards; and the reverse rotation of the gear is prevented through the meshing of the limiting clamping jaw and the gear, so that the falling of the tire expander is prevented.

The invention discloses an electric power system lightning arrester for power distribution network planning and a method thereof, and belongs to the technical field of lightning arresters, the electric power system lightning arrester for power distribution network planning comprises a lightning arrester main body, the bottom of the lightning arrester main body is provided with a first bottom plate and a second bottom plate, and the first bottom plate and the second bottom plate are inserted into the upper end and the lower end of a box body; a mounting plate is fixedly connected to the bottom of the box body, a fixing mechanism is arranged in the box body, and a supporting mechanism is connected to one side of the mounting plate, synchronous and multi-directional fixing of the supporting frame and the first bottom plate can be achieved only by rotating a rotating shaft, the operation convenience and the equipment mounting stability are improved, and the supporting mechanism is arranged, so that the operation is convenient, and the practicability is high. The lightning arrester main body can be supported when the lightning arrester main body is installed, the workload when the first bottom plate and the second bottom plate are installed and aligned is reduced, the second bottom plate is supported through the supporting blocks, and the installation stability of the second bottom plate and the lightning arrester main body is further improved.

The invention provides a front windshield lower clamping strip bending forming device which comprises a working table and a forming table, a vertical plate is vertically arranged on the rear side of the working table, rolling wheels are arranged on the vertical plate at equal intervals in a rolling mode, and a conveying belt driven by a conveying motor is longitudinally arranged on the working table. A driving rolling set and a driven rolling set which are used for rolling forming of a lower clamping strip are alternately arranged on the forming table, a sliding base is elastically and obliquely matched with the left side of the forming table in a sliding mode, the driving rolling set on the left side is arranged on the sliding base, and a rotating piece driven by a servo motor is rotationally arranged at the bottom of the forming table; and a lifting mechanism is arranged on the vertical plate. The device has the advantages that the driving rolling sets are automatically kept running through the transverse moving piece, the lower clamping strip is lifted to the conveying belt from the rolling wheels, the sliding base drives the driving rolling set on the left side to obliquely move leftwards and then elastically reset, the lower clamping strip attached to the limiting block is wound in and rolled to be formed, and the forming efficiency is improved.

The present invention relates to a driving device of a surgical instrument and a patch fixing device. The driving device comprises a driving assembly, a transmission assembly and a pin pushing assembly; the driving assembly is used to drive the transmission assembly; the transmission assembly comprises a sleeve assembly, a screw rod and a first engaging member; the pin pushing assembly comprises a pin pushing sheet and an engaging assembly; the engaging assembly comprises a second engaging member, the second engaging member and the first engaging member are engaged with each other in a detachable manner, and the first engaging member can drive the second engaging member to rotate. The driving device provided by the present invention can provide power for surgical instruments to achieve periodic firing; and the driving device can prevent the pin pushing structure from reversing. The present invention also provides a patch fixing device, which uses the above-mentioned driving device to achieve continuous firing of multiple fixing pins, thereby effectively fixing the medical patch at the tissue defect.

The utility model discloses a disc-shaped suspension insulator triple tension string which comprises three adjusting discs, a hanging plate is installed above the adjusting discs, a disc-shaped suspension insulator is installed above the hanging plate, a three-to-two yoke plate is installed at the top of the disc-shaped suspension insulator, a yoke plate is installed at the top of the three-to-two yoke plate, and a tension spring is installed at the top of the yoke plate. The adjusting disc comprises a shell, a fixing block is fixed in the shell, a grading ring is arranged on the outer side of the disc-shaped suspension insulator, and the top of the grading ring is fixedly connected with the three-to-two yoke plate. According to the disc-shaped suspension insulator triple strain insulator string, the adjusting disc is arranged, a hexagonal wrench rotates a hexagonal block, the hexagonal block drives a worm to rotate, the worm rotates to drive a worm wheel to rotate, the worm wheel drives a bolt inserted into a through hole to move, and therefore the distance between a hanging point fitting and a hanging plate can be adjusted, operation is simple and convenient, and the bolt and a nut do not need to be loosened; bolts are inserted into different holes, and then the screwing nuts are screwed to adjust the distance.

The utility model relates to an in-situ torsion experiment device for X-ray CT (Computed Tomography), and belongs to the technical field of scientific instruments for in-situ torsion experiments for X-ray CT. Comprising a driving assembly, a torque sensor and a clamp assembly. Two ends of a shaft of the torque sensor are respectively connected with the driving assembly and a clamp. The driving assembly comprises a motor, an outer shell, a worm gear and a worm, the worm gear and the worm are rotationally arranged in the outer shell and meshed, the upper end of the worm gear is in key connection with the lower end of the torque sensor, and one end of the worm is connected with the output end of the motor. The driving assembly is stable in transmission during an experiment, has a self-locking function, prevents reverse rotation, improves the detection accuracy, is compact in structure, has a large transmission ratio, is suitable for speed reduction, is low in noise and small in vibration, and effectively prevents the influence on other works in a laboratory.

The utility model discloses a kind of display wall-mounted support, including fixed frame, two are equidistantly provided in fixed frame, two fixed frame are symmetrically fixedly connected with fixed rod, the outside of fixed rod is slidably connected with height adjustment seat, the inside of height adjustment seat is equidistantly provided with rack, the side of rack is fixedly connected with display body;The utility model relates to display wall-mounted support technical field, which is provided with handle, pivot, second bevel gear, first bevel gear, screw rod, fixed rod and height adjustment seat, which realizes the function of quickly adjusting the height of display body during use, freely adjusts the vertical position of screen, is convenient to operate, and enhances the use effect of the device;By setting connecting block, connecting rod, clamping block, second spring, rack and clamping groove, the function of quickly installing and disassembling between display body and height adjustment seat is realized, and the display body can be flexibly disassembled and assembled.

The utility model provides a CNC (computer numerical control) machine tool stop-free clamp, which relates to the technical field of numerical control machine tools and comprises a base disc, arc cutting parts fixed on the top of the base disc in a circumferential array manner, a pressing plate fixed on one side of each arc cutting part, a bottom sliding disc connected with the bottom of the pressing plate in a sliding manner, and limiting columns fixed on the top of the bottom sliding disc in a circumferential array manner. The problem that a CNC numerical control machine tool depends on a clamp to fix a machined part in the production process, machining precision and stability are ensured is solved by installing a round prying head, however, a traditional clamp system is often complex in design, and the function of rapidly releasing and fastening the workpiece is difficult to achieve, which means that after the CNC machine tool completes machining of one product, the machining precision and stability are guaranteed. In the prior art, an operator must shut down and manually replace a clamped workpiece, the process is time-consuming, the continuous operation efficiency of equipment is reduced, the efficiency of the whole production process is reduced due to the fact that a machine tool cannot carry out production operation when replacing products, and the throughput of machining tasks and the economic benefits of enterprises are further influenced.

The present invention relates to the technical field of building construction, and in particular to an aluminum alloy scaffolding board, comprising a board body, a hook assembly and a pre-tightening assembly; the hook assembly comprises two hooks connected at both ends of the board body, and positioning holes are respectively arranged on the hooks; the pre-tightening assembly comprises a rotating shaft, a ratchet module and a tensioning module; the tensioning module comprises a tensioning steel cable, a tensioning cam, a matching body and an operating nut, and the matching body and the operating nut are coaxially fixed on the rotating shaft, and a matching hole matching the matching body is arranged on the tensioning cam; positioning pins matching the positioning holes are respectively arranged at both ends of the tensioning steel cable; the present invention, through the setting of the tensioning module and the modification of the hook, fixes the scaffolding in the upper and lower directions during use by the tensioning steel cable, thereby avoiding the problem of easy disengagement; the coordination of the tensioning steel cable and the tensioning cam can form a triangle with the tensioning steel cable and the hook by rotating the tensioning cam to a predetermined position, thereby forming a triangular prestress.

The utility model discloses a processing punch forming die for a motorcycle brake disc, and relates to the field of brake discs, the processing punch forming die comprises a base, the upper surface of the base is connected with a lifting rod, the top end of the lifting rod is connected with a punching assembly, rotating grooves are symmetrically formed in the side face, away from a guide groove, of a material guide hole, and rotating shafts are installed in the rotating grooves; the side face, away from the guide block, of the stamping disc is also provided with a rotating shaft, and the fixing frame is fixed to the top of the guide plate. According to the machining punch forming die for the motorcycle brake disc, the damping spring can convert kinetic energy into heat energy through the structure of the damping spring, vibration generated when the punching disc extrudes and punches the lifting rod can be reduced through the damping effect of the damping spring, and when vibration of the punching disc is reduced, the service life of the die can be prolonged, and the punching effect can be improved; and after the angle of the guide plate is stable, the punched waste can fall on the surface of the guide plate through the guide hole and then fall into the collecting barrel to be collected through guiding of the guide plate, and the waste collecting effect is improved.

The present invention discloses a push rod DC motor with a brake device, which relates to the technical field of push rod motors. The main structure includes a motor assembly, a brake assembly and a front end cover assembly; the brake assembly is arranged at the rear end of the motor assembly, and the front end cover assembly is arranged at the front end of the motor assembly; the front end cover assembly is used to detect the rotation speed of the rotating shaft in the motor assembly. The brake assembly uses a brake spring to make multiple brake pads hold the rotating shaft of the motor assembly. Only when the rotating shaft rotates in the forward direction, the brake spring releases the brake by relying on the friction between the rotating shaft and the multiple brake pads. When the rotating shaft reverses, the brake spring holds the multiple brake pads to further increase the braking force, thereby avoiding the reversal of the rotating shaft; at the same time, the rotation speed of the rotating shaft is detected by the front end cover assembly, so as to adjust the working state of the push rod DC motor.

The utility model discloses a plastic vacuum forming machine capable of cutting and blanking, which comprises a plastic vacuum forming machine main body with an existing structure, two sides of the plastic vacuum forming machine main body are respectively provided with a feeding assembly and a material receiving assembly, and a cutting assembly is arranged between the plastic vacuum forming machine main body and the material receiving assembly; the feeding assembly comprises a feeding support and a feeding roller rotationally connected to the feeding support, a plastic film barrel is installed and connected to the feeding roller, the end of at least one end of the feeding roller penetrates out of the feeding support to be fixedly provided with a ratchet wheel, a limiting block is fixed to the feeding support, an inserting channel is formed in the limiting block, and the inserting channel is communicated with the plastic film barrel. A balancing weight is arranged in the insertion channel, and a limiting surface matched with the ratchet wheel is arranged on the balancing weight; compared with the prior art, the feeding device has the advantages that the feeding device is simple in structure, reverse rotation of the feeding roller can be prevented due to the ratchet wheel, and discharging and winding can be facilitated due to the cutting assembly.

The utility model relates to the technical field of tapping machines, and discloses a movable tapping machine threaded rod for multiple workpieces, which comprises a first fixing rod sleeve, a movable threaded rod is slidably connected in the first fixing rod sleeve, the lower end of the movable threaded rod is fixedly sleeved with a chuck, the chuck is used for fixing a screw tap, and two adjusting assemblies are arranged on the first fixing rod sleeve. The adjusting assemblies are used for stably adjusting the height position of the screw tap, the two adjusting assemblies are arranged in a mirror symmetry mode, each adjusting assembly comprises two rotating shaft fixing plates, an inner gear ring is manually rotated through an anti-skid protruding block, a movable threaded rod can drive the screw tap in a chuck at the lower end of the movable threaded rod to move up and down, and under indication of a scale groove in a fixing sleeve, the screw tap can be adjusted. The tapping machine is adjusted to the height position communicated with the previous machining, so that the situation that in a traditional mode, a chuck needs to be loosened manually, a tapping tool needs to be clamped again or the tool needs to be set again is avoided, and the workpiece machining efficiency of the tapping machine is improved to a certain degree.

The application provides a multifunctional therapeutic instrument for migraine relief, which comprises a treatment frame, a slidingly installed mounting seat arranged on the treatment frame, a first hot compress pad arranged on the mounting seat, a fixed shell arranged on the treatment frame, a connecting hole arranged on the fixed shell, a movable frame arranged in the fixed shell, a connecting shaft arranged on the movable frame, the connecting shaft being rotatably arranged in the connecting hole, a sliding frame arranged in the movable frame, a mounting rod slidably arranged in the sliding frame, a pressing plate hingedly arranged at one end of the mounting rod, and a second hot compress pad arranged on the bottom surface of the pressing plate. The therapeutic instrument can effectively relax the tense muscles and nerves of the head and neck through the form of hot compress on the back of the neck and the forehead, so as to achieve the effect of relieving migraine, and the position of the hot compress pad can be conveniently adjusted for different people, and the hot compress pad is not easy to be separated.

The present invention relates to the technical field of medical devices, and discloses a skin suture tension controller, including a housing, a ratchet assembly, a knob cover and a pull wire. The housing is hollow with an installation cavity, and the ratchet assembly includes an upper ratchet, a lower ratchet and a pawl. The lower ratchet rotates a rotating shaft sleeved on the bottom of the installation cavity, and the lower ratchet selectively docks with the upper ratchet to engage the transmission; the top of the housing is provided with an installation opening with an inner ratchet portion in the inner ring, and when the pawl is connected to the upper ratchet and engages with the inner ratchet portion, the upper ratchet can only rotate in the tightening direction; a pull wire hole is provided on the side of the housing, and the two ends of the pull wire are aligned and pass through the pull wire hole and are wound around the lower ratchet. The bottom of the knob cover is connected to the upper ratchet, and a control docking groove is provided on the top. The structure is simple and stable, and the fluctuation in use is small, which effectively improves the patient's treatment experience; the production cost is low, and it is easy to assemble; it can accurately control and realize stepless adjustment of the tension, and improve the scope of application.

The utility model relates to the field of industrial dust removal, in particular to a back-suction ash removal mechanism of a dust remover, which is arranged in the dust remover and positioned at the lower part of a dust removal bin and comprises a back-suction bin and a back-suction hopper, a back-suction fan is arranged in the back-suction bin and is used for generating back-suction wind power, and a rotatable baffle is also arranged between the back-suction bin and the back-suction hopper and is used for rotating the back-suction bin and the back-suction hopper. A blanking opening matched with the opening in the bottom of the back-suction hopper is further formed in the eccentric position of the surface of the baffle, a circle of brushes making contact with the baffle are further arranged at the opening in the bottom of the back-suction hopper, the baffle rotates to achieve communication or closing between the back-suction bin and the back-suction hopper, and a driving part is arranged at the bottom of the back-suction bin; during dust removal operation, the back-suction hopper is driven to rotate clockwise, independent and accurate back-suction dust removal can be carried out on dust removal bags in a plurality of dust removal bins, the thorough and uniform dust removal effect of the dust removal bags is ensured, the other dust removal bags can still carry out online dust removal while dust removal is carried out on one dust removal bag, and the dust removal efficiency of equipment is improved.

The invention discloses a transmission device of a self-locking electric actuating mechanism, and relates to an electric actuating mechanism. Comprising a worm arranged on a shell and driven by a motor to rotate; the worm gear is arranged on the output shaft in a sleeving manner and is meshed with the worm; the gear A is arranged on the output shaft in a sleeving manner and is in transmission connection with the worm gear; the planet carrier X is fixedly arranged on the output shaft in a sleeving manner; the planet carrier X is provided with a first gear C which is rotatably arranged, and the planet carrier X is driven to rotate through meshing of the gear A and the first gear C, so that the output shaft is driven to rotate; according to the scheme, by means of the self-locking performance of the worm and gear pair and the planetary transmission mechanism, the motor shaft and the hand wheel of the electric actuating mechanism are effectively prevented from reversing, accidental injuries caused by following rotation can be avoided, and the valve can be accurately kept at the set position.

The application discloses an automatic conveying line and relates to the technical field of automatic equipment, which comprises a frame, a plurality of working boxes arranged on the frame, sliding rails installed on the frame and penetrating through the working boxes, a plurality of sliding blocks uniformly arranged on the sliding rails, a same driving mechanism drivingly connected with the sliding blocks, the driving mechanism driving the sliding blocks to slide along the sliding rails, support rods rotatably installed on the sliding blocks, products to be conveyed fixedly installed on the top of the support rods, rollers fixedly installed at the bottom of the support rods and friction belts selectively installed on the frame and abutting against the rollers in one or more working boxes. The automatic conveying line has the advantages that the same driving mechanism is used to drive the plurality of sliding blocks, so that the investment in the driving device is reduced; the rollers and the friction belts are arranged, so that no additional power is needed when the products to be conveyed are rotated in the conveying process; one conveying line can realize the completion of multiple processes, no additional manpower is needed for connection, and the automation degree of the conveying line is improved.

The invention discloses an anti-reversal cooling fan and a server, and relates to the technical field of cooling fans. The anti-reversion cooling fan comprises a motor stator, a motor rotor, fan blades and a one-way limiting device. The fan blades are arranged on the peripheral side surface of the motor rotor; the one-way limiting device is arranged between the motor rotor and the motor stator; when the one-way limiting device is located at the first position, the motor rotor can rotate in the forward direction or the reverse direction relative to the motor stator. When the one-way limiting device is located at the second position, the motor rotor can rotate in the forward direction relative to the motor stator and is locked in the reverse direction. The one-way limiting device is arranged, so that the motor rotor can rotate in the forward direction and be locked in the reverse direction relative to the motor stator, the motor rotor is prevented from reversing relative to the motor stator, and the anti-reversing cooling fan can be effectively protected; the anti-reversion cooling fan can be normally started under the condition that the surrounding airflow direction is opposite to the forward rotation airflow direction.

The invention discloses oxidation fermentation equipment capable of improving aroma and sweet aftertaste for oolong tea processing, and relates to the technical field of tea leaf fermentation rooms, in particular to oxidation fermentation equipment. The oxidation fermentation equipment for oolong tea processing, provided by the invention, can avoid tea leaf residues, is convenient to clean and can improve aroma and sweet aftertaste. Comprising a fermentation machine and further comprises a first bracket, the first bracket is rotationally connected to the fermentation machine, the fermentation machine is rotationally connected with a second bracket, the first bracket and the second bracket are connected with a material containing frame in a clamped mode, a blocking assembly used for blocking tea leaves is arranged on the material containing frame, and a flattening assembly used for flattening the tea leaves is arranged on the material containing frame. And a driving assembly for driving the material containing frame to rotate is arranged on the fermentation machine. The material containing frame rotates forwards and downwards by 90 degrees or above, fermented tea leaves can be poured out better, the tea leaves are prevented from remaining in the material containing frame, the material containing frame can be detached to be cleaned, tea residues are prevented from remaining on the material containing frame and going bad, and the cleaning effect is further improved.

The invention belongs to the technical field of conveying of excavation equipment, and particularly relates to a forcible clamping breaking scraper conveyor driving device and a scraper conveyor. Comprising a card breaking oil cylinder assembly, the card breaking oil cylinder assembly is connected with a supporting frame of a scraper conveyor driving device, a first limiting part is arranged on a rotating part, synchronously rotating with a chain wheel, of the scraper conveyor driving device, and a second limiting part is arranged at the end, close to the rotating part, of the card breaking oil cylinder assembly. The clamping breaking oil cylinder assembly extends out to enable the chain wheel to be locked when the first limiting part is meshed with the second limiting part, one end of the clamping breaking oil cylinder assembly takes the scraper conveyor as counter-force support, and the other end of the clamping breaking oil cylinder assembly pushes the scraper conveyor driving device to move in the conveying direction through the first limiting part; according to the scraper conveyor provided with the forced clamping breaking driving device, the slack degree of the scraper chain is adjusted through the tensioning oil cylinder, finally, clamping is broken through the clamping breaking oil cylinder in a large probability and high efficiency mode, the hard rock material conveying efficiency of the scraper conveyor can be effectively improved, and finally the related production efficiency of hard rocks is improved.

The utility model relates to the technical field of temporary warning isolation equipment, in particular to a device for quickly setting a safe enclosure area. The device for rapidly setting the safety enclosure area comprises a trolley, a reel, an isolation belt, a warning lamp, a safety warning board and a ratchet wheel assembly, the reel is rotationally connected to the trolley, the isolation belt is wound around the reel, the warning lamp and the safety warning board are both installed on the trolley, the ratchet wheel assembly comprises a ratchet wheel and a pawl, the ratchet wheel is fixedly installed on the reel, and the pawl is fixedly installed on the reel. The ratchet wheel and the reel are coaxially arranged, and the pawl is rotationally installed on the cart and can be inserted into a tooth groove of the ratchet wheel. Compared with the prior art, the cart is convenient to move, and the carrying workload of workers is reduced; the isolation belt is wound on the reel, so that winding of the isolation belt is facilitated, the isolation belt can be rapidly laid and recycled, and the labor intensity of workers is reduced; the warning lamp and the safety warning board can warn passersby to be away from the isolation area; the pawls can be inserted into tooth grooves of the ratchet wheels to prevent the reel from rotating reversely, and the stability of the fence is guaranteed.

The utility model relates to the technical field of building safety protection, in particular to a novel building safety protection fixing device which comprises a ground, a plurality of steel pipes are arranged at the top of the ground, a steel wire mesh is arranged in a cavity defined by the steel pipes, a supporting plate is arranged at the bottom of the steel wire mesh, and a fixing plate is arranged at the top of the steel wire mesh. A pressing plate is arranged at the top of the fixing plate, a plurality of pressing rods are slidably connected to the inner portions of the front ends of the pressing plate, the fixing plate and the supporting plate, a locking rod is rotatably connected to the rear end of the supporting plate, and cavities are formed in the rear ends of the pressing plate and the fixing plate and slidably connected with the locking rod. The front end of the fixing plate is rotationally connected with a steel pipe main clamp, and the front end of the supporting plate is rotationally connected with a steel pipe auxiliary clamp. Due to the action of the positioning rods and the positioning springs, the positioning rods can penetrate through the cavities in the steel wire mesh to be attached to the positioning holes, so that the steel wire mesh is further fixed, and the fixing effect and the firmness degree are further guaranteed.