177results about How to "Achieve free rotation" patented technology

The invention relates to a biomass feed divider with changeable trough obliquity and vibration frequency and amplitude, which realizes continuous, stable and safe feed division by adopting two regulating measures of changing obliquity of a trough and changing vibration frequency and amplitude and by exciting force generated by a vibrating motor (9). The device is formed by arranging one or a plurality of independent distributors in parallel, wherein each distributor mainly comprises a trough body (4), a vibrating motor (9), an elevating (8), a spring supporting mechanism (11) and an auxiliary mechanism; the trough body (4) is supported by the spring supporting mechanism (11) at the front part and the elevating (8) at the rear part, the vibrating motor (9) is arranged in the middle of the bottom of the trough body (4), and the rear part of the trough body (4) is connected with bulkhead by canvas (3). The device integrates material storage and material distribution, is not only suitable for hard biomass but also is suitable for soft biomass, and has lateral expansibility, thereby being convenient to be used together with material equipment of various types.

The invention relates to the technical field of machines, in particular to an automatic soldering tin machine. The automatic soldering tin machine comprises a base, and a rack, an X-axis soldering tin mechanism, a Y-axis soldering tin mechanism, a Z-axis soldering tin mechanism, an automatic tin bar feeding mechanism, a rotation mechanism, a power mechanism and a control mechanism are arranged on the base; the rack is detachably connected with the X-axis soldering tin mechanism, the Y-axis soldering tin mechanism is in screwed connection with the base, the Z-axis soldering tin mechanism is arranged on the X-axis soldering tin mechanism and detachably connected with the X-axis soldering tin mechanism, the automatic tin bar feeding mechanism and the rotation mechanism are each detachably connected with the Z-axis soldering tin mechanism, the power mechanism is electrically connected with the control mechanism, the rotation mechanism comprises a rotation head and a welding gun, and the welding gun is in screwed connection with the rotation head. The soldering tin direction and the soldering tin angle of the welding gun are adjusted through the rotation mechanism, electronic elements nearby welding points are avoided, it is guaranteed that the electronic elements nearby the welding points cannot be scalded, the production efficiency of the products is greatly improved, the product quality can be guaranteed, and the full-automatic requirement is met.

The invention discloses a vegetable cutting and filling stirring integrated machine which comprises a framework, a vegetable cutting motor, a rotary table, a vegetable knife, a filling stirring knife and a filling stirring motor. The vegetable cutting and filling stirring integrated machine is characterized in that a vegetable cutting driving mechanism comprises a left driven gear, a left rotary disc, a driving rod, a left slide rail, a right slide rail and a telescopic rod, the left driven gear is meshed with a driving gear, and the left rotary disc is coaxially fixed to the left driven gear; a left slide rod and a right slide rod which can slide along the length directions of the left slide rail and the right slide rail are respectively arranged in the left slide rail and the right slide rail, the lower end of the driving rod is hinged to the edge of the left rotary disc, and the upper end of the driving rod is connected with the bottom of the left slide rod. The vegetable cutting and filling stirring integrated machine has the advantages that the vegetable knife can reciprocate up and down, so that cutting effects can be realized for foods in a vegetable basin; the vegetable cutting and filling stirring integrated machine is provided with the filling stirring knife, the filling stirring motor, a guide rod, a lifting rack and a lifting motor, the filling stirring knife can extend to the bottom of the vegetable basin under the driving effect of the lifting motor, and filling stirring actions can be implemented under the driving effect of the filling stirring motor.

The invention belongs to the technical field of intelligent equipment, and particularly relates to a converting station fire disaster early warning inspecting robot. A robot body and a walking device,a monitoring device, a control device, a communication device and a navigation positioning device which are arranged on the robot body are included, the walking device comprises two V-shaped crank arms and two obliquely arranged supporting frames, the ends of the V-shaped crank arms and the supporting frames are provided with driving motors, rolling wheels are in transmission connection with output shafts of the driving motors. The robot has the advantages that functions of climbing stairs and entering cable ditches are achieved, equipment of cable ditches and the like and indoor and outdoorenvironments of a converting station can be automatically inspected according to preset time and routes, fire disaster potential safety hazards of heat generating points, electric sparks, flame spots,smoke sensing spots and the like can be timely discovered, functions of fire disaster early warning and alarming of an unmanned converting station are achieved, and the robot has the application prospects of being popularized in the fields of warehouses, oil depots and the like.

The invention provides a rotatable gas flow meter, which integrates various collector functions of gas state quantity in one device to realize collecting various state quantities of gas flow rate, temperature, pressure and concentration at one position, thereby largely increasing assessment precision upon the gas flow. And an air inlet head of a multi-parameter gas collecting device of the gas flow meter can rotate via large angel, which is convenient for the installation of the device and measurement. The gas flow meter comprises the rotatable multi-parameter gas collecting device, four measuring bridges, a signal amplifying circuit, an A / D converter circuit, a data processing center, a power supply circuit, a data display equipment and an input device. A gas collecting portion employs multi-channel structure and multi-layer structure, and air orifices of the gas collecting device can freely rotate.

A precision actuator with an impact-resistant locking device comprises the impact-resistant locking device, a grating ruler swinging installation block, an extension rod installation head, an extension rod, a driving screw rod, a driving nut, a nut fastening piece, a first motor bearing, a main driving motor, a second motor bearing, a main shell, a motor upper shell and a base. The precision actuator has an impact-resistant locking function, a locking block and the extension rod are locked by a matched groove under a locking state, impact bearing employs a contact form, and the impact-resistant capability can be improved; by employing a fuse mechanism, extra motor control is reduced, and the control difficulty is reduced; and position feedback fully-closed loop is achieved, meanwhile, theextension rod can freely rotate at a small angle, the measurement accuracy cannot be affected, and the actuator is suitably applied to a multi-dimensional gesture adjustment platform.

The invention discloses a rotary table of an arch installation machine for a tunnel. The rotary table comprises a chassis, a cab 2, a traveling mechanism 3, an upper platform 4, a working arm 5 and a working device 6. The rotary table is characterized in that a rotary platform 45 comprises a bottom plate 451, a cab rotary base 452, two installation arm bases 453 and a hanging basket arm rotary base 454, wherein the bottom plate is used for supporting all assemblies on an installation platform, the cab rotary base is arranged on the front left, the two installation arm bases and the hanging basket arm rotary base are arranged on the front right of the bottom plate and located on the right side of the cab rotary base, and the two installation arms are symmetrically installed relative to a hanging basket arm.

The invention discloses a composite rotary cross arm. The composite rotary cross arm comprises a supporting insulator and a composite insulator, wherein the supporting insulator and the composite insulator are hinged to the same side of a tower body; the supporting insulator is vertical to the tower body; the tail end of the composite insulator points to the tail end of the supporting insulator in an inclined manner, and the tail end of the composite insulator is connected with the tail end of the supporting insulator through a wire hanging clipper connected with a ground wire; the supporting insulator is arranged below the composite insulator, and an included angle between the supporting insulator and the composite insulator is 30-45 degrees; components for hinging the supporting insulator and the composite insulator with the tower body comprise two steel angles arranged up and down, two sides, oppositely arranged, of the two steel angles are respectively provided with a hinging shaft, the other sides of the two steel angles are respectively and fixedly connected with the tower body, each hinging shaft is provided with a hinge, the other end of each hinge is provided with a hanging plate, and the hanging plates are vertical to the hinges and are used for respectively connecting the supporting insulator and the composite insulator. The composite rotary cross arm disclosed by the invention has the advantages of simple structure, convenience in implementation, reasonable design, light weight and effective protection on the main body of a tower.

The invention discloses a visual experiment device and method for simulated cross fracture seepage. The visual experiment device comprises a cross fracture mold and a test device for observing cross fracture seepage. The inside of the cross fracture mold is of a T-shaped cross fracture structure; and the test device comprises a fixed device, a flow control device and a data acquisition device. Thetest device realizes a quantitative observation research on a transparent cross fracture seepage process by using a light transmission principle; and meanwhile, flexible adjustment of relative positions of a camera, a light source and the fracture mold is realized on a mechanical structure, so that three-dimensional real-time observation of the cross fracture seepage process is realized.

The invention provides a traction device for a seam welder. The traction device comprises a traction disc chuck assembly, a traction disc chuck driving and supporting assembly, a clamping assembly and a traction disc chuck dragging assembly; the traction disc chuck assembly clamps longitudinal bars of a reinforcement cage through cooperation with the clamping assembly; the traction disc chuck driving and supporting assembly supports the traction disc chuck assembly and drives the traction disc chuck assembly to rotate; the traction disc chuck dragging assembly drags the traction disc chuck driving and supporting assembly to move in the longitudinal direction. According to the traction device, a rotation air cylinder drives a face gear to rotate, a plurality of swinging web plates rotate synchronously around the axes through face gear and bevel gear pairs, the distance between the swinging web plates and fixed web plates is changed, and therefore the longitudinal bars can be clamped or loosened. The traction device is compact in structure, high in work efficiency, convenient to operate and capable of being applied to the technical field of reinforced concrete pipe and steel reinforcement framework production equipment.

The invention relates to a multifunctional cleaner, which is characterized in that the main body includes a main rod, a chassis cleaner and an outer curved rod. Its main rod is divided into three parts: telescopic rod, long rod and short rod. Special hinges are used between the long rod and the short rod, and the chassis cleaning device and the short rod, which can be freely rotated and fixed. The chassis cleaning device is mainly composed of a shell, a sponge, a water squeezer, and a motor. The water squeezing plate is equipped with a rack, which can also be driven by a motor. Different working forms can be switched by combining different angles of the long rod, short rod and the cleaner chassis to achieve various cleaning purposes. The positive effects that can be achieved by adopting the technical solution of the present invention: the multifunctional cleaner transforms different forms through different angle combinations of the rod and the chassis cleaning device, thereby solving various household cleaning problems, effectively cleaning various dead corners, and being safe and reliable. Save family space and bring convenience to family cleaning.

The invention discloses a novel automatic trace sample adding device. The device comprises a shell hinged with an outward turned cover, a spearhead storage unit, a spearhead recycling unit for recycling waste spearhead, a sample storage unit for storing samples and reagent, a bearing target plate and a target plate bearing unit for heating the reagent in the target plate are arranged on a horizontal platform in the shell at intervals; a liquid handling pump driven by a three-dimensional driving mechanism is arranged on the horizontal platform, an air purifying unit is arranged at an upper partof a right side plate of the shell, an ultraviolet sterilizing lamp is horizontally arranged at the upper part of a backboard of the shell, and a human-machine interaction unit is arranged at the outside of the shell. The sample adding device has the advantages of being simple in structure and high in sample adding precision; the automatic processing of the to-be-tested sample is realized, the sample adding operation is standardized, an identification result is good in repeatability; and the target plate sample adding operation is performed in the shell, and the security is high.

The invention relates to a drug bottle facilitating vaginal and anal drug delivery, comprising a bottle body, a cap and a press liquid-sucking mechanism; the top of the press liquid-sucking mechanism is provided with a press head, and a drug outflow passage is arranged in the press head; the drug bottle is characterized by also comprising a rotating block and a delivery pipe which is fixed to the rotating block, an inner connection tube communicated with the passage is arranged in the press head, a circular cavity is arranged outside the inner connection tube, and each of the outer wall of the inner connection tube and the inner wall of the circular cavity is provided with a circular groove; each of the inner and outer walls of is provided with a circular protrusion mating with the corresponding circular groove so that the outer connection tube can be fixed and rotated in the circular cavity. The drug bottle allows a drug in the press head to be sprayed into a delivery tube, allows the delivery tube to rotate freely, and makes it convenient for a user to align a discharge head of the delivery tube with a focus or extended the discharged head to the focus for the purpose of drug delivery, accuracy and reasonableness of drug delivery are guaranteed, smooth treatment of a disease is guaranteed, and the drug bottle has significant advantages and is suitable for application and popularization.

The invention provides a fluid jet direction adjusting device which comprises a fluid pipeline, an injector head, a driving ball and multiple stay wires. The fluid jet direction adjusting device is characterized in that the driving ball is located at the rear end of the fluid pipeline, a handle is fixed to the rear end of the driving ball, a supporting rod is fixed to the front end, a front outer cylinder is arranged on the periphery of the injector head, a rear outer cylinder is arranged on the periphery of the supporting rod, the front ends of the stay wires are fixed to the periphery of the injector head, and the rear ends of the stay wires are fixed to the periphery of the supporting rod. The stay wires are in a tension state so that the direction of the injector head can change along with changing of the direction of the supporting rod, the injector head can rotate along with the supporting rod, and the jet direction of the injector head can be adjusted so as to carry out effective extinguishment operation. The fluid jet direction adjusting device has the advantages of being simple and reasonable in structure, low in manufacturing cost, flexible to control, remarkable in benefit effect and suitable for application and popularization.

The invention discloses a heating constant temperature box. The heating constant temperature box includes a box body with a heating device and is characterized in that an air stirring system is arranged inside the box body; the air stirring system includes a stirring motor fixed on the box body; the stirring shaft of the stirring motor is connected with a stirring blade. According to the axial flow stirring heating constant temperature box provided by the invention, the air stirring system is additionally arranged into the box compared with a traditional heating box, an electric heating element is used to heat the air in the sealed constant temperature box and an axial fan is used to drive the air in the box to flow, so that the temperature uniformity in the box is ensured.

The invention discloses a power transmission device capable of reducing bicycle sliding resistance. The device comprises a chain wheel, a column foot, a hub and a clutch which are in coaxial rotation. One end of the column foot is connected with the chain wheel, and the other end is connected with the hub through the jaw clutch. The jaw clutch comprises a driven gear sleeve and an axial sliding drive gear sleeve, and embedded end teeth are arranged at the opposite ends of the drive gear sleeve and the driven gear sleeve respectively. A spiral spline movably connected with the drive gear sleeve is fixed on the column foot, and a spline groove is sleeved on the drive gear sleeve. The driven gear sleeve is a step shaft sleeve, a ratchet is arranged at the small diameter section of the driven gear sleeve, and a snapping groove for the ratchet to be snapped in is formed in the inner hole wall of the hub. A synchronizer is mounted between the drive gear sleeve and the driven gear sleeve. Compared with the prior art, bicycle power can be transmitted effectively, power transmission can be stopped at the over-speed, free rotation of the hub is achieved, the wheel rotation resistance during sliding of the bicycle is reduced, and rotation noise is reduced.

The invention discloses a rotary mobile phone support, and belongs to the field of mobile phone parts. The support comprises a pedestal and clamping body rotationally connected with the pedestal via arotary adjustment mechanism, wherein the rotary adjustment mechanism is positioned at the axis of the clamping body and the pedestal; the rotary adjustment mechanism comprises a T-shaped rotation block, an adjustment nut and a bearing; a T-shaped groove matched with the T-shaped rotation block is arranged in the clamping body; the T-shaped rotation block is installed in the T-shaped groove; a bearing is installed between the clamping body and the Y-shaped rotation block; the pedestal is fixedly connected with the T-shaped rotation block via the adjustment nut; one side of the bottom of the pedestal is of an arc-shaped structure, and the height adjustment mechanism is arranged on the other side. The rotary mobile phone support provided by the invention is convenient and quick to use, convenient to operate and strong in practicability; meanwhile the rotary mobile phone support also has the characteristics of firm structure, strong flexibility and strong stability.

The invention discloses a telescopic aluminum strip positioning and compressing device for a hollow glass molecular sieve filling machine. The device comprises a turning table, a hydraulic ejecting and extending device and a positioning and compressing mechanism, wherein the turning table consists of four fan-shaped expansion plates, a positioning guide groove is arranged between every two adjacent fan-shaped expansion plates, limiting sliding grooves which are mutually parallel are arranged in the positioning guide grooves, the limiting sliding grooves are respectively located at the side surfaces of every two adjacent fan-shaped expansion plates, synchronous sliding blocks are connected into the limiting sliding grooves in a sliding manner, the top surfaces of the synchronous sliding blocks are provided with catching grooves, the hydraulic ejecting and extending device is connected to the turning table through the synchronous sliding blocks in a moving manner, the positioning and compressing mechanism is connected to the end part of the hydraulic ejecting and extending device, and every two opposite fan-shaped expansion plates are provided with one group of synchronous travel mechanisms. The device provided by the invention is simple in structure and high in practicability, not only is the molecular sieve filling of aluminum strip frames of different shapes and sizes met, but also the clamping and positioning can be automatically realized, the filling of each through hole of molecular sieve is realized, and the working efficiency of the filling machine is improved.

The invention belongs to the field of civil engineering, and discloses a test device for simulating the horizontal earthquake action of a node in a framework beam column. The test device comprises a counter-force rigid frame fixedly connected to the ground. The counter-force rigid frame is of a stable frame structure formed by a vertical supporting frame and a transverse supporting frame. The column top of a beam column node test piece is provided with an axial pressure loading device capable of exerting the pressure on the column top, and the column bottom of the beam column node test piece is connected with the ground through two symmetrically-arranged column hinge supports. The axial pressure loading device is hinged to the transverse supporting frame. The test device further comprisesa reciprocating loading device capable of exerting a horizontal force on the beam column node test piece at the column end side surface above the beam. A connecting rod which is vertically arranged isarranged between the beam end of the beam column node test piece and the ground. The two ends of the connecting rod are hinged to the beam end and the ground through a hinge seat respectively. The column hinge support is of a vertical bent structure, and the first bending part of the column hinge support is connected with the ground. The second bending part is arranged towards the side face of the column end, and a cylindrical rod is clamped between the second bending part and the side surface of the column end. The two column hinge supports are fixed through a connecting piece. According tothe test device, the situation that the actual beam column node bears the horizontal earthquake action can be reflected more truly.

The invention discloses a wearable bracelet watchband fixing device convenient to wear, and relates to the technical field of wearable equipment. The watch comprises a left watchband and a right watchband, wherein the left watchband is connected with a rectangular sleeve; tooth grooves are arrayed in the surface of the right watchband. An adjusting mechanism is connected in the rectangular sleeve;connecting columns are fixed to the two side walls of the rectangular sleeve. A connecting hole is formed in one connecting column; a pressing rod passes through the connecting hole; the adjusting mechanism comprises a rotating pipe; an annular groove is formed in the outer wall of the rotating pipe, sawtooth notches are arrayed on the circumference of the outer wall of the rotating pipe, and thesawtooth notches communicate with the annular groove; a shaft sleeve sleeves the outer wall of the rotating pipe; the shaft sleeve is rotationally connected with an adjusting gear; the shaft sleeve is connected with an adjusting pipe through a connecting plate; a plurality of fixing columns are fixed to the side wall of the adjusting gear. And the fixing columns are connected with fixing plates clamped with the sawtooth notches. The adjusting mechanism is arranged in the rectangular sleeve, the pressing rod is pressed, and the adjusting pipe is used for driving the adjusting gear to rotate for tightening of the watchband, and the problem that an existing wristband is inconvenient to wear and adjust is solved.

The invention relates to the technical field of photographic equipment and particularly relates to a forward and backward folding photographic tripod. The tripod comprises a central tube, a center-axis connecting tube, a plurality of pin shaft tubes, a base and a plurality of pin tubes, wherein an insert is tightly nested in a bulge loop at the periphery of the base, and upper inner holes and lower inner holes of the pin shaft tubes are respectively in close fit with the insert and the pin tubes; the insert is internally provided with a gear, a locator, a pressure spring and a wave bead; the bulge loop is movably connected with the pin shaft tubes, the insert and the gear by a hinge pin; teeth of the gear are meshed with any locating hook of the locator; a chuck of the locator props against the wave bead; and the locator is also provided with a button which extends out of an inner chamber of the pin shaft tube. According to the photographic tripod, free rotation at 0-180 degrees of the pin tubes can be realized, thereby bringing great convenience for a user to photograph; and the pressure spring can be prevented from being broken by pressing, thereby effectively prolonging the service life of the photographic tripod. The photographic tripod has the advantages of simple structure, reasonable design and low production cost.

The invention relates to a cylindrical tension and compression support for transferring an upper load to a lower part or pier foundation. The cylindrical tension and compression support comprises an upper support skirt part and a lower support skirt part which are respectively provided with bolt holes connected with a main body structure, wherein the upper part of the upper support skirt part is in a rectangular or circular shape, and the lower part of the upper support skirt part is in an incomplete cylindrical shape; the incomplete cylinder is connected with the arc of the upper part of the upper support skirt part, and the middle of the lower support skirt part is provided with a cylindrical surface groove for the incomplete cylinder to freely rotate or transversely slide; local reinforcing ribs are arranged on the lower support skirt part. During installation, the incomplete cylinder is pushed into the cylindrical surface groove from the side, and the groove can bear the vertical pressure and also transfer the vertical pull due to the narrow upper part and the wide lower part of the groove. The cylindrical tension and compression support provided by the invention is simple in structure, is used for a fulcrum needing to transfer the pull and pressure, and is applied to large rotation and horizontal displacement of the structure, the bending internal force at a beam end is avoided, the structural design is simplified, and the manufacturing cost is reduced.

The invention provides a sealed bin gate system driven by gears and provided with locking stop pin. The sealed bin gate system comprises a gate seat (2), wherein a bin opening (3) for being communicated with a bin body is formed in the gate seat (2); a cavity (33) is formed in the gate seat (2) and on the left side of the bin opening (3), and the locking stop pin (31) and a compression spring (32) are arranged in the cavity (33); a strip-shaped baffle block (83) is perpendicularly arranged at the upper end of the front surface of a bin gate plate (8), and a spherical limit bulge (84) is arranged on the inner side surface of the baffle block (83);a driven gear (7) is rotationally mounted at one end of a hinged shaft, is fixedly connected with the bin gate plate (8) through welding, and is meshed with a transmission gear (6); the transmission gear (6) is in power connection with a motor.

The invention discloses a ratchet mechanism capable of changing direction of rotation, which is characterized in that a ratchet tooth groove (11) on a ratchet (3) is rectangular, namely the two sides of the ratchet tooth groove (11) are mutually parallel straight blocking surfaces; two planes which are intersectant are arranged at the front pawl end of a pawl (5); and one plane is a straight blocking surface with blocking effect and the other plane is an inclined surface with slipping effect. The invention adopts the above technical scheme, the pawl is in direct insert type, the tail end of the pawl is provided with a handle convenient for pulling out the pawl to change the limiting direction, the limited direction of rotation of a turntable can be randomly selected and the pawl is simple to operate when changing the limiting direction; after rotating 90 degrees after being pulled out, the pawl rebounds and does not enter into the ratchet tooth groove, thus cancelling the blocking effect of the pawl, namely realizing free rotation of the ratchet in two directions; and the ratchet mechanism has simple structure and is convenient to operate.

The invention provides a seal bin gate system provided with a lock pin and driven by a screw rod. The system comprises a gate seat (2), wherein the gate seat (2) is provided with a bin opening (3) for being communicated with a bin body; the part, located on the right side of the bin opening (3), of the gate seat (2) is hinged with the lower end part of a bin gate plate (8) through a hinged shaft; a cavity (33) is formed in the part, located on the left side of the bin opening (3), of the gate seat (2); a lock pin (31) and a compression spring (32) are arranged in the cavity (33); an elongated block (83) is perpendicularly arranged at the upper end of the front surface of the bin gate plate (8), and a spherical limit bulge (84) is arranged on the inner side surface of the elongated block (83); and two through holes (81 and 82) are formed in the back of the upper end part of the bin gate plate (8), a screw rod (4) is hinged to the position between the two through holes (81 and 82) and matched with a threaded sleeve (7), and the threaded sleeve is in power connection with a motor (6).

The invention discloses an anti-loose wire-clamping device used for a low-voltage electric appliance. The anti-loose wire-clamping device comprises a plate type clamp head and an adjustable fixing andconnecting device. The lower end of the plate type clamp head is connected with a shaft coupling through a rotation shaft. The shaft coupling is fixedly arranged on the inner wall of the adjustable fixing and connecting device. The left end of the adjustable fixing and connecting device is in hub connection with a fixing shaft. The plate type clamp head includes a stainless steel body, a moving clamping head and a static clamping head. A slide guide rail is arranged on the upper surface of the stainless steel body, the static clamping head is fixedly arranged on the left end of the slide guide rail, and the upper surface of the slide guide rail is in sliding connection with the moving clamping head. Through adoption of the adjustable fixing and connecting device, the entire anti-loose wire-clamping device can freely rotate 360 degrees, and has turning and fixing functions. Moreover, a control module is arranged inside the plate type clamp head to control joints to move, so the wire clamping control force is increased and over-tight or loosening situations during wire clamping can be overcame effectively.

The invention discloses a driving line driving device and a flexible exoskeleton applying the same. The driving line driving device comprises a base, a rotary driving assembly and a driven assembly. Aguide shaft is arranged on the base; the rotary driving assembly is arranged on the base, and a driving wheel is arranged at the output end of the rotary driving assembly; the driven assembly comprises a clutch assembly and a driven wheel assembly; the clutch assembly is used for winding a driving wire; the driven wheel assembly is rotationally arranged on the guide shaft, is connected with the driving wheel, and rotates when the driving wheel rotates; the clutch assembly is rotationally arranged on the guide shaft and located on the side, in the length direction of the guide shaft, of the driven wheel assembly; the clutch assembly can move along the guide shaft to get close to or away from the driven wheel assembly and can be connected with the driven wheel assembly when getting close tothe driven wheel assembly so that the clutch assembly can be driven by the driven wheel assembly to rotate, and then assistance is provided for the driving line. By means of the mode, better assistance can be provided for a wearer, and the wearer can move more conveniently.

The invention discloses a two-way rotating automatic reset spring elastic rotating shaft device and a handle using the same. The two-way rotating automatic reset spring elastic rotating shaft device comprises a main mandrel, an elastic body, limiting baffles and a casing, wherein the main mandrel penetrates through a perforation of the elastic body; two bumping posts of the main mandrel are respectively butted against two pins of the elastic body; the main mandrel penetrates through central holes of the two limiting baffles; the limiting baffles are fixed to the casing; the two pins of the elastic body respectively penetrate into clamping grooves of the corresponding limiting baffles; and an angle corresponding to the radian of each clamping groove is 90-135 degrees. According to the two-way rotating automatic reset spring elastic rotating shaft device provided by the invention, the free rotation of the main mandrel and the automatic reset of the main mandrel can be realized; and even if an elastic coefficient of the elastic body changes, the influence on the reset of the main mandrel can be avoided. In addition, the two-way rotating automatic reset spring elastic rotating shaft device is concise in design and convenient for assembly and mass production, so that the cost is low. The handle with the two-way rotating automatic reset spring elastic rotating shaft device is flexible in steering and can automatically reset.

The invention relates to the technical field of electric meter boxes, in particular to an electric meter box capable of automatically dissipating heat and removing dust and facilitating installation of an electric meter. Theelectric meter box comprises a box body, the box body is provided with an opening end, a box door is hinged in the opening end, a heat dissipation assembly is arranged at the bottom of the inner side of the box body, and four groups of fixed seats are distributed on the inner side of the box body in a matrix manner; and a connecting rod A is in pin connection with the fixed seat. According to the invention, a rotating handle belt is rotated to drive a gear to rotate a rack and an L-shaped rack, so that free rotation of a connecting rod B is realized, the mounting plate is conveniently pulled out, the purpose of conveniently mounting an electric meter is realized, and an arranged heat dissipation assembly can effectively dissipate heat in the box body, the design is reasonable, and the structure is novel.

The invention discloses a cold side energy saving optimization thermal power generation condenser washing system. The washing system comprises a condenser and an outer pipeline. A conical mesh screenis fixedly mounted in the outer pipeline, the conical mesh screen is movably connected with a rotary mesh barrel, a slewing bearing is fixedly arranged on the outer side wall of the rotary mesh barrel, a supporting outer ring engaged with a gear drive device is arranged on the slewing bearing, the rotary mesh barrel is of a curve type structure, and the outlet end of the rotary mesh barrel is located at the water inlet ends of cooling pipes. Rubber balls and water currents are introduced from one end of the conical mesh screen and discharged into the rotary mesh barrel from the other end, as the rotary mesh barrel is driven by the gear drive device to radially rotate in the outer pipeline, when the inlet end of the rotary mesh barrel rotates, while the outlet end of the rotary mesh barrelrotates by itself, the outlet end can carry out revolution around the central axis of the inlet end, and therefore when pushed by the water currents to be discharged from the outlet end of the rotarymesh barrel, the rubber balls can evenly enter the cooling pipes in the condenser.