55results about How to "Easy mesh" patented technology

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 invention relates to the technical field of display detection, and more particularly discloses a display detection device and method based on visual inspection, and the device comprises a base assembly, the base assembly comprises a first base, the top of the first base is fixedly connected with a top plate, and the top of the first base is provided with a first middle groove and a second side groove; a transmission assembly is mounted in the first middle groove, the transmission assembly comprises a first motor and a first screw rod, a translation assembly is mounted on the outer side of the first screw rod, and a light source assembly and a detection assembly are mounted at the bottom of the top plate. Through the arrangement of the light source assembly and the translation assembly, the bottom of the light-emitting plate can emit parallel light beams to irradiate the display screen, the light is reflected by the surface of the display screen and absorbed by the detection assembly, the position of a drop point is calculated, and the thickness change value of the display screen is calculated to be converted and expanded into a distance difference; and high-precision detection of the thickness of the display screen is realized.

The utility model provides a water supply device for a water plant, which belongs to the technical field of water treatment and is provided with a water storage tank, a water injection pipe communicated with the inside of the water storage tank is mounted on the top wall of the water storage tank, a filter tank penetrating through the left side wall and the right side wall of the water storage tank is arranged on the water storage tank, and a filter plate is embedded in the filter tank. A receding groove communicated with the filtering groove is formed in the right wall of the water storage tank and located at the lower end of the filtering groove, and a stirring mechanism is arranged in the water storage tank and located below the filtering groove; auxiliary blocks are respectively mounted at the left and right ends of the filter plates, the opening directions of the auxiliary blocks at the two ends of the filter plates are opposite, a filter plate box with a completely opened right wall is fixedly mounted at the left end of the water storage tank, a plurality of filter plates are horizontally placed in the filter plate box, and the filter plate at the lowest end in the filter plate box is meshed with the auxiliary blocks between the filter plates in the water storage tank; the water supply device solves the technical problems that a filter screen of an existing water supply device is inconvenient to replace, time consumed for replacing the filter screen is long, and use of the water supply device can be affected.

The invention belongs to the technical field of bridge construction, and particularly relates to a broken line pre-tensioning method concrete precast beam bogie device and a construction method, the broken line pre-tensioning method concrete precast beam bogie device comprises a base, and further comprises a supporting device, a driving device and a self-locking device which are mounted on the base. According to the broken line pre-tensioning method concrete precast beam bogie device and the construction method, by arranging the driving device, steering of a tensioning broken line and starting of a double-shaft motor can be rapidly completed, a transmission rod can be driven to rotate, and a driving sleeve can be conveniently engaged with a bevel gear of a supporting lead screw by moving on the transmission rod; after the position of an adjusting seat is adjusted, a connecting plate can be conveniently detached and fully used, a stabilizing rod and a transmission rod are slidably connected in an inserted mode, a driving sleeve can be conveniently supported, and the transmission rod and the driving sleeve can be fixed and rapidly released through a shaft locker; therefore, the steering of the tension broken line can be quickly completed.

The utility model discloses a feeding reciprocating synchronizing device of a flaking machine, and belongs to the technical field of disc type flaking machines. The device mainly comprises a base assembly, the base assembly is movably connected with a long material conveyor and a material pressing device which can move in a reciprocating mode, the material pressing device is fixedly arranged at one end of the long material conveyor, and the conveying direction of the long material conveyor is perpendicular to the moving direction of the long material conveyor and the moving direction of the material pressing device. The base assembly is rotationally connected with a reciprocating transmission mechanism used for driving the material pressing device and the long material conveyor to move synchronously. The reciprocating transmission mechanism comprises at least one transmission shaft, gear mechanisms are fixedly connected to the transmission shafts located at the two ends of the reciprocating transmission mechanism respectively, and rack mechanisms meshed with the gear mechanisms are fixedly connected to the material pressing device and the long material conveyor respectively. Synchronous reciprocating feeding of the long wood conveyor and the material pressing device is achieved, the stability of long wood in the planing process is guaranteed, and the machining precision is improved.

The invention relates to the technical field of nuclear waste treatment and storage, in particular to a nuclear waste barrel steel shelf stand column mounting and adjusting tool and method. The adjusting tool comprises a rotating piece, a fixing piece and a self-locking assembly. Nut screw threads are arranged at the two ends of the rotating piece, the screwing directions of threads of the nut screw threads are opposite, and a blocking hole is formed in the groove portion of the root between every two adjacent nut screw threads. The fixing piece comprises studs and lantern rings, the studs are installed in the nut screw threads at the two ends of the rotating piece, and the lantern rings are arranged at the ends of the studs; the self-locking assembly comprises a plugging screw and a self-locking ball, the plugging screw is installed in the plugging hole, and the self-locking ball is plugged in a matched tooth groove hole of the nut screw thread and the stud. The adjusting tool can be operated by one hand, is convenient and labor-saving, can realize fine adjustment, and does not damage the upright post.

The utility model discloses a manual cleaning and spraying device, and belongs to the technical field of spraying. A manual type cleaning and spraying device comprises a water spraying gun, the water spraying gun is composed of a gun body and a water spraying head, the gun body is rotationally connected with the water spraying head, a lamp body is arranged on the gun body, a gear ring is arranged at one end of the water spraying head, a driving mechanism is arranged in the end, connected with the water spraying head, of the gun body, and a gear is connected to an output shaft of the driving mechanism and can be meshed with the gear ring. The lamp body is arranged on the gun body, when a workpiece is manually cleaned, the lamp body can illuminate properly, and whether the workpiece is cleaned or not can be observed conveniently. The water spraying head is rotationally connected with the gun body, the driving mechanism is used for driving the water spraying head to rotate when a workpiece is cleaned, the water spraying head rotates and sprays water at the same time, water flow splashing can be reduced during water spraying, and the situation that cleaning water splashes disorderly and is inconvenient to clean is prevented.

The utility model discloses a veneer color difference detection device for a painted plate, and relates to the field of detection tools. The table lamp comprises a bottom frame, a lamplight panel and a supporting panel are arranged at the two ends of the bottom frame in the length direction respectively, and the front face of the lamplight panel and the front face of the supporting panel are oppositely arranged; lamp tubes are evenly arranged on the front face of the light panel through a support, a mirror face is arranged between the lamp tubes and the light panel, and the mirror face is fixed to the front face of the light panel in an attached mode. Suction cups are evenly arranged on the front face of the supporting panel, supporting rods are evenly and detachably installed on the front face of the supporting panel through connecting pieces, and abutting pieces are arranged at the free ends of the supporting rods. The plate supporting device has the advantages that a plate is supported through the supporting rods with the positions and the number adjustable on the supporting panel, the plate abuts against the supporting panel through the abutting pieces and is sucked by the suction cups at the same time, so that the stability and reliability of plate supporting are enhanced, and the suction cups prevent the plate from making contact with the supporting panel to be abraded.

The utility model discloses a rubber compound filtering and vacuum kneading device, and relates to the technical field of rubber compound kneading. Comprising a fixed bottom plate, a kneading frame is fixedly arranged at the top of the outer wall of the fixed bottom plate, a meshing structure is arranged on the kneading frame and comprises a rotating disc, three rotating sleeves, a fixing disc, three fixing rods and a fixing frame, the outer wall of the rotating disc is rotatably embedded in the kneading frame, and the outer walls of the three rotating sleeves are slidably embedded in the rotating disc; one ends of the three fixing rods are fixedly arranged on the fixing disc, the three fixing rods are rotationally sleeved with the inner walls of the three rotating sleeves correspondingly, and one side of the outer wall of the fixing frame is fixedly arranged on the fixing disc. Through the rotating disc, the rotating sleeve, the fixed disc and the fixed rod, multiple rotation can be utilized to act on a kneading area, so that the meshing efficiency is improved, meshing is more convenient, energy consumption is reduced, and the device can be contracted, rubber compound in the meshing area can be extruded conveniently, and residues are avoided.

A linkage cabinet door lock includes a lock body and an installation structure. The lock body has a locking assembly and a limiting mechanism. The locking assembly includes a bolt, a gear locking pin, and a rack. The bolt is slidably disposed in a bolt groove. A gear locking pin is rotatably disposed on the outside of the bolt groove, with a gear at one end and a locking end at the other. The gear meshes with the rack on the bolt to achieve linkage between the bolt and the gear locking pin. The locking assembly has unlocked and locked states. In the unlocked state, a compression spring pushes the bolt out of the lock body, and the locking end screws into the lock body. In the locked state, the bolt retracts into the lock body, and the locking end screws out of the lock body. During the sliding of the bolt, the rack drives the gear locking pin to rotate, realizing the switching between the two states. The limiting mechanism includes a limiting spring and a limiting actuator. The limiting head of the limiting spring is used to prevent the bolt from popping out. The limiting actuator controls the deformation of the limiting spring to release the limiting of the bolt. This invention has a simple structure, is easy to operate, and can realize individual control of the cabinet door on which this mechanism is installed.

The utility model relates to an eccentric adjusting device of a continuous rolling speed reducer for a coiling machine. The eccentric adjusting device effectively solves the problems that according to an existing speed reducer adjusting mode, shutdown disassembly is needed, adjusting precision is not high, non-shutdown disassembly-free adjustment is not convenient, and efficiency is affected. According to the eccentric adjusting device of the continuous rolling speed reducer for the coiling machine, through the arrangement of the eccentric ring structure and the adjusting mechanism, the adjusting mechanism can be directly rotated by means of an external tool, so that the eccentric ring structure can be driven to rotate, an internal structure is eccentrically adjusted, disassembly-free adjustment is achieved, the adjusting time is greatly shortened, and the adjusting efficiency is improved. The eccentric ring structure can be driven by the adjusting mechanism to finely adjust the speed reducer structure, the adjusting precision is improved, the meshing effect of the speed reducer is better, the eccentric ring structure can be dynamically adjusted under the condition that the operation of the speed reducer is not affected, the part with the meshing precision attenuated can be adjusted and compensated in time, and the service life of the speed reducer is prolonged. Normal continuous operation of a production line is guaranteed, and production efficiency is improved.

This invention relates to the field of electron tube socket technology and discloses a tensile-resistant electron tube socket for precision electronic components and its processing technology, solving the current problem of inconvenience in leading out the cathode of the electron tube die column. It includes a base, with an electron tube die column at the bottom and a glass tube at the top. The base has multiple insertion holes, and multiple electron tube cathode pins are fixedly connected to the bottom of the electron tube die column. Each electron tube cathode pin is inserted into its respective insertion hole. The base has a groove containing a fixing mechanism, a protective mechanism, and a locking mechanism. The fixing mechanism includes a guide post fixed in the groove, and a bidirectional lead screw rotatably connected to the groove below the guide post. Two nuts are symmetrically threaded onto the outer side of the bidirectional lead screw. This invention allows the base block to be pushed upwards, facilitating the disengagement of the electron tube cathode pins from the insertion holes, thereby facilitating the lead-out of the electron tube die column cathode.

The utility model discloses a working mechanism with multiple rotating heads, which solves the technical problems of low working efficiency and poor effect of an electric tool with a single working head in the prior art. The multi-rotating-head working mechanism comprises a driver, a plurality of rotating heads and a planetary gear assembly, the planetary gear assembly comprises a main shaft, a planet carrier, a plurality of planetary gears, a plurality of rotating shafts and fixedly-arranged meshing units, the rotating shafts are rotatably arranged on the planet carrier, and the meshing units are fixedly arranged on the main shaft. The planetary gears, the rotating shaft and the rotating head rotate synchronously, the rotating head is arranged below the planet carrier, the driver is in transmission connection with the main shaft, the planet carrier is installed on the main shaft and rotates synchronously with the main shaft, and the meshing unit is meshed with the multiple planetary gears. And the planet carrier rotates to drive the plurality of planet gears to revolve around the axis of the main shaft and enable the plurality of planet gears to rotate around the axis of the rotating shaft. The utility model further provides an electric tool which adopts the multi-rotating-head working mechanism in the technical scheme.

The invention relates to the field of electrical contacts, in particular to a power plant electrical contact connecting device which comprises a shell, a first control valve is mounted in each heat dissipation hole, fire extinguishing assemblies are symmetrically and fixedly mounted on the side wall of the shell, and a winding assembly is slidably mounted on the side wall of one side of the shell. By arranging the fire extinguishing assembly, when the shell is short-circuited, the current in the circuit is sharply attenuated, and the passing current amount of the electromagnet connected in the circuit in parallel is synchronously weakened, so that the magnetic attraction force between the electromagnet and the permanent magnet is weakened, and the permanent magnet is extinguished along with the weakening of the magnetic attraction force between the electromagnet and the permanent magnet; a first spring starts to extend and reset from an initial compression state to push a first piston plate to move downwards, so that the pressure intensity below the first piston plate is increased, and the dry powder extinguishing agent in the storage box is guided into a guide pipe along a wedge-shaped block and is sprayed out through a plurality of nozzles on the side wall of the guide pipe; and the fire between the moving contact and the static contact is extinguished in time.

The invention relates to the technical field of gearbox gear shifting control, and discloses a tractor pneumatic control gear engaging device which comprises an upper cover fixedly installed on a gearbox, gear shifting blocks and air cylinder assemblies, the multiple gear shifting blocks are installed in the upper cover in a sliding mode, and the telescopic ends of the air cylinder assemblies are used for pushing and pulling the gear shifting blocks to horizontally move left and right. The air cylinder assembly comprises a cylinder body, a first piston and a second piston are installed on the cylinder body in a sliding mode, and a first air injection hole, a second air injection hole and a third air injection hole are formed in the surface of the cylinder body. According to the pneumatic control gear engaging device, the air cylinder assemblies capable of achieving three-gear positioning are arranged, the air cylinder assemblies can drive the gear shifting blocks to be switched among the high gear, the neutral gear and the low gear, the requirement for controlling the meshing sleeve to slide left and right is met, the multiple air cylinder assemblies control the gear shifting blocks to act independently, a gear selecting air cylinder set is omitted, the overall structure of a gear engaging mechanism is simplified, and the gear engaging device is convenient to use. The size is reduced, the failure rate is reduced, and convenience is provided for later use, maintenance and debugging.

The invention provides a gear shifting control method, a gear shifting control device, a vehicle and a storage medium, the method is applied to the technical field of vehicle control, and the method comprises the steps that if a gear shifting request of a target gear is detected, a target rotating speed corresponding to the target gear is obtained; the rotating speed of a driving motor is controlled based on the target rotating speed, and in the process of controlling the rotating speed of the driving motor, a combination sleeve in a gear shifting executing mechanism is controlled to be pushed in the first direction; wherein the first direction is used for representing the direction in which the combination sleeve is close to the gear corresponding to the target gear in the axial direction of the output shaft; and if it is detected that the current rotating speed of the driving motor is the target rotating speed and the combination sleeve moves to the target position, the combination sleeve is controlled to be engaged with a gear corresponding to the target gear, so that the target gear is switched. According to the method, the gear shifting time can be shortened, the driving smoothness and comfort are improved, and therefore the driving experience of a user is improved.

The utility model relates to the technical field of electromechanical machinery, and provides an electromechanical drilling auxiliary framework utilizing relative force to judge hole depth constancy, which comprises a machine body, a drilling mechanism is fixedly connected in the machine body, the upper side and the lower side of the drilling mechanism are movably connected with protection mechanisms, and the surface of each protection mechanism is movably connected with a hole depth mechanism. And the surface of the hole depth mechanism is movably connected with a deslagging mechanism. According to the electromechanical drilling auxiliary framework for judging the hole depth constancy through the relative force, a rack plate drives an advancing plate to move, the advancing plate drives a drill rod to advance, drilling and advancing of the drill rod are achieved, the rack plate drives a swing head to move through a lever, the swing head drives a linkage rod set to move, the linkage rod set enables a push plate to be unfolded and pushes an extrusion switch, and the extrusion switch pushes a contact. The distance between the contact and the extrusion switch is the drilling depth, when the contact bears the relative force of the workpiece, the contact extrudes the extrusion switch, the driving source stops operating, and the drilling depth is kept constant according to the height of the workpiece to maintain the corresponding specification.

The present invention discloses a material storage shelf for an electric power warehouse, which relates to the field of electric power storage, and comprises a vertical plate and a horizontal plate, wherein two vertical plates are provided, and slide grooves are opened on opposite surfaces of the two vertical plates, and slide buttons are slidably sleeved in the slide grooves, and a horizontal plate is fixedly connected between the slide buttons, and the horizontal plate presses down a sliding block and a transmission sprocket through a clamping rod, and when the transmission sprocket is pressed and has a tendency to rotate along the chain, that is, when the transmission sprocket has a tendency to rotate counterclockwise, the transmission sprocket cannot rotate counterclockwise, and the storage shelf does not require staff to climb up to take materials, and does not require the use of a crane when taking heavier and larger materials, and does not require placing larger and heavier materials at the bottom of the storage shelf, so that the storage space can be fully utilized, so that not only can the materials be quickly taken, the efficiency of material transportation is improved, but also the risk of taking materials is reduced.

The present invention discloses a device for precision grinding of a turbine disc blade assembly. The turbine disc blade assembly includes a turbine disc in the middle, turbine blades are distributed on the outer edge of the turbine disc, gear discs are arranged on both sides of the turbine disc, and a positioning assembly is included for pressing and positioning the turbine disc blade assembly. The positioning assembly includes a first end tooth clamp, a second end tooth clamp, and a center piece. The first end tooth clamp and the second end tooth clamp are highly meshed with the gear discs on both sides of the turbine disc, respectively; one end of the center piece is fixedly connected to the first end tooth clamp by a screw, and the other end of the center piece is fixedly connected to the second end tooth clamp by a tightening screw. The present invention is to make a matching connection through the end tooth surface of the turbine disc blade assembly. The end tooth surfaces of both parties are formed by precision machining and have a good meshing degree, which can ensure that the axis lines are collinear when the pair of turbine disc blade assemblies are subjected to a precise grinding process, and ensure that the grinding process of the turbine blades is more accurate.

The utility model provides a sand molding machine, which relates to the technical field of sand molding machines and comprises a sand molding machine body. The sand molding machine body is provided with a sand molding machine shell in the vertical direction, a sand box bearing plate in the left-right direction is installed at the bottom of the front portion of the sand molding machine shell through bolts, four stepped holes penetrating vertically are formed in the center of the end face of the top of the sand box bearing plate in an annular array mode, and placing blind holes are formed in the end face of the top of the sand box bearing plate in an array mode. A rolling contact ball is placed in a placement blind hole of the sand box bearing plate, and a cross groove is formed in the middle of the top end face of the sand box bearing plate, so that the rolling contact ball is conveniently placed in the sand box bearing plate to be in rolling contact with the sand box, and the pushing friction resistance of the sand box is conveniently reduced through rolling contact; the utility model relates to a sand mold box, which solves the problems that the friction resistance is larger when the sand mold box is pushed due to the fact that a sand mold machine is in surface contact with the sand mold box, and rolling contact measures are inconvenient to add on the sand mold machine for rolling contact with the sand mold box to reduce the resistance.

The present invention relates to the technical field of plate processing, and specifically discloses an automatic bending device for processing a semi-trailer compartment plate, comprising an equipment base, wherein a support seat and a support plate are symmetrically fixedly connected to the upper surface of the equipment base, a limit plate is fixedly connected to the upper surface of the support seat and the support plate, a support frame is fixedly connected to the upper surface of the limit plate, a bending component for plate bending processing and ensuring processing stability is arranged on the top of the support frame, and a support component for plate support and determining the forming shape of the plate is arranged between the support seat and the support plate; the plate can be limitedly supported by the fixed seat and the limit plate, the plate can be driven to be loaded and unloaded by using a driving roller, and high-quality bending can be achieved by driving the bottom pressure head by a hydraulic cylinder body, and in the whole process, continuous and automatic bending of the plate can be achieved by the cooperation of various components in the device, which can improve processing accuracy and efficiency, thereby ensuring the plate processing quality and production efficiency.

The application provides a walking driving structure of a hanging rail inspection robot, and belongs to the technical field of hanging rail robots. The walking driving structure comprises a slide rail component, an inspection assembly, a same-side connecting component, a speed matching switching assembly, a speed matching driving assembly, an elastic slide column component and a compensation slide sheet assembly. The slide rail component is composed of a linear slide rail and an arc-shaped slide rail. The top ends of the inspection assembly are provided with rollers on both sides, which are slidably connected with the slide rail component. The switching slide seat is transversely slidably connected in the main shell, so that the constant-speed gear and the non-constant-speed pinion and the non-constant-speed gear are meshed and switched between the rotating gears, and are synchronized. The bottom transmission gear connected with the constant-speed gear can also be meshed and switched between the two groups of driving gears rotating in the same direction, so as to improve the flexibility of the meshing connection between the gears. The compensation slide sheet assembly is used for eliminating the problem of poor progress caused by the intersection of the section of the outer slide groove in the arc-shaped slide rail and the roller during the sliding process of the inspection assembly in the arc-shaped slide rail.

The invention relates to a low-power-consumption self-locking type electromagnetic valve for ocean temperature difference energy power generation and a working method, and belongs to the field of deep sea energy equipment. The low-power-consumption self-locking type electromagnetic valve comprises a valve body, a valve element, a valve sleeve, a limiting assembly and an electromagnet assembly, the electromagnet assembly comprises an electromagnet shell, an armature, a coil and a self-locking assembly, and the valve body is fixedly connected to the electromagnet shell; the valve sleeve is located in the valve body, the valve element is arranged in a through hole A in the middle of the valve sleeve and can axially move in the through hole A, and one end of the valve element is connected with the end of the valve body through a limiting assembly. A transmission screw penetrates through the through hole B of the electromagnet shell, the other end of the valve element is fixedly connected with one end of the transmission screw, the other end of the transmission screw is connected with a self-locking assembly, and a main spring is arranged between the self-locking assembly on the transmission screw and the electromagnet shell. By adding the self-locking structure, the electromagnetic valve can be switched between the long closing state and the long opening state, the structure is simple, machining is easy, cost is low, system electric energy consumption is reduced, and low-power-consumption work is achieved.

The utility model discloses a multi-action fire-fighting lance quick erection fixing support, which relates to the technical field of fire-fighting lances, and comprises an F-shaped clamp body, a fixing mechanism is arranged in the middle of the F-shaped clamp body, the fixing mechanism comprises a fixing snap ring, the bottom end of the fixing snap ring is hinged with a limiting snap ring, a clamping mechanism is arranged on the surface of the F-shaped clamp body, and the limiting snap ring is hinged with the limiting snap ring. The clamping mechanism comprises a connecting rod and a movable pressing plate, the bottom end of the connecting rod is fixedly connected with a fixed cross rod, an adjusting mechanism is arranged outside the fixed cross rod, and the adjusting mechanism comprises a cam handle. The fire-fighting lance can be fixed on the surface of the F-shaped clamp body and the position of the fire-fighting lance through closing of the fixed clamping ring and the limiting clamping ring, so that the fire-fighting lance can carry out fire extinguishing operation on a fire source at a fixed point, the device is fixed on the surface of a firm object through the F-shaped clamp body and the movable pressing plate, and when rescue workers are insufficient, the fire-fighting lance can carry out fire extinguishing operation on the fire source at a fixed point. The fire-fighting lance can be fixed at fixed points, and the fire extinguishing efficiency is improved.

The utility model discloses a double-cantilever medical hollow fiber membrane curling device which comprises a spline transmission shaft, gear boxes, a rotating shaft, hobbing teeth and a base, a sliding rail is arranged on the base, a sliding block set is arranged on the front portion and the rear portion of the sliding rail respectively, a first gear box and a second gear box are installed on the front sliding block set and the rear sliding block set respectively, and the spline transmission shaft penetrates through the two gear boxes. A worm transmission structure is arranged in each gear box to transmit power of the spline transmission shaft to the rotating shaft, hobbing teeth are arranged on the rotating shaft, the two hobbing teeth on one side are opposite in rotating direction and meshed, a tow of the hollow fiber membrane is clamped between the two hobbing teeth to be bent, and corrugation pressing operation of the tow of the hollow fiber membrane is synchronously conducted from the two ends of the rotating shaft. And the balance of the rotating shaft is improved, meanwhile, the corrugation pressing efficiency can be improved, double-line operation is achieved, and layout can be more convenient for subsequent winding.

The utility model discloses a ribbon gear used for a printer, the ribbon gear comprises a gear main body and a shaft body, the gear main body is inserted on the shaft body, and the gear main body is made of a metal material; the gear main body is made of the metal material, the metal material does not have the problems of deformation and shrinkage rate in the injection molding process, and after the gear main body is subjected to injection molding, the gear is stable in size and good in meshing performance, so that a product is better and smoother to rotate in the printing process, abrasion is not prone to occurring, or a nylon tape base on a ribbon printer is not prone to being damaged; the printing problem caused by different sizes of gears is solved.

This utility model discloses a plastic upper and lower mold splicing device, including a side plate and a rotating handle. A first conveying assembly is installed at the right end of the side plate. The first conveying assembly includes a first active toothed roller, which is rotatably connected to the middle of the side plate. A first driven toothed roller is rotatably connected to the end of the side plate. A first conveying toothed belt is meshed with the surfaces of the first active toothed roller and the first driven toothed roller. A second conveying assembly is installed at the left end of the side plate. The second conveying assembly includes a second active toothed roller. A second driven toothed roller is rotatably connected to the other side of the side plate. This plastic upper and lower mold splicing device can rotate on a rotating shaft above the conveying toothed belt via a rotating disk, so as to adjust the welding position of the plastic part. At the same time, the use of the toothed blocks on the lower surface of the rotating disk and the limiting blocks in the inner groove of the outer protective frame facilitates the locking of the rotating disk by the limiting blocks during rotation, so as to position the rotating disk after rotation.

The utility model relates to the technical field of plastic infusion containers, and discloses an easy-to-decompose polymer interface structure for a plastic infusion container, which solves the problem that most of the current interfaces can only be connected with a single infusion tube, and comprises an infusion head, an upper interface and a connecting seat are fixedly arranged at the top of the infusion head, and the connecting seat is sleeved on the outer side of the upper interface; an adjusting mechanism and a limiting mechanism are installed on the infusion head, two lower connectors are symmetrically and fixedly installed at the bottom of the infusion head, two openings are symmetrically formed in the bottom of the infusion head, and the two lower connectors are communicated with the interior of the infusion head through the two openings respectively; according to the infusion apparatus, the infusion head is matched with the opening and the lower connector, so that two infusion tubes can be conveniently connected for infusion at the same time, the two sleeve plates can conveniently slide along the two stand columns respectively through the matching of the rotating shaft, the driving gear and the toothed plate, and then the two elastic balls can ascend and descend; therefore, the opening and closing of the two infusion tubes can be conveniently controlled.

The utility model discloses an escalator comb plate which comprises a main plate, the upper surface of the main plate is provided with a plurality of anti-skid grooves which are arranged in parallel at intervals, the lower surface of the main plate is provided with a plurality of groove sets, and the groove sets enable the lower surface of the main plate to form a plurality of fillets which are perpendicular to one another. An outer end extending outwards is arranged at one end of the main plate, the upper surface of the outer end and the upper surface of the main plate are in arc transition, the lower surface of the outer end is a plane, the included angle between the lower surface of the outer end and the main plate is 7.5 degrees, and a plurality of comb teeth are evenly arranged on the lower surface of the outer end at intervals. The upper surfaces of the comb teeth are in arc transition with the upper surface of the outer end portion, the lower surfaces of the comb teeth are parallel to the lower surface of the outer end portion, and the distance between the lower surfaces of the comb teeth and the lower surface of the outer end portion is 10.3 mm. The comb plate for the escalator is simple in structure, has strength and toughness, improves meshing, better protects operation of the escalator, guarantees safety of passengers, and improves experience of taking the escalator.

The present application relates to the technical field of automatic production line, and particularly relates to an automatic overturning conveying device, which comprises a vertical conveying mechanism, the vertical conveying mechanism is composed of two belts in the same horizontal plane, and a conveying channel is formed between the two belts, and a receiving end of the conveying channel is located below an output end of an upstream conveying belt; a straight conveying mechanism, the straight conveying mechanism is composed of a horizontal conveying belt and a carding channel arranged above the horizontal conveying belt along a conveying direction, and a working surface of the horizontal conveying belt is lower than a horizontal plane where the belts are located; the vertical conveying mechanism and the straight conveying mechanism are used to gradually card the scattered and discontinuous conical materials conveyed by the upstream conveying belt, and finally the materials are conveyed to downstream equipment in a unified posture, so that the working efficiency is improved.