52817 results about "Threaded rod" patented technology

The present invention relates to an umbilical cable bending stiffness testing device and method. The device comprises a workbench; a measuring groove is formed in the top of the workbench; a fixing assembly is arranged in the measuring groove, and the fixing assembly is used for fixing two ends of an umbilical cable; a mounting plate is fixedly connected to the bottom of the workbench; a mounting frame is fixedly connected to the upper surface of the mounting plate; a threaded rod is rotatably connected between the lower surface of the mounting frame and the upper surface of the mounting plate; obtained data is transmitted to a dynamic data acquisition system by means of a displacement monitor body; the dynamic data acquisition system calculates obtained parameters to obtain bending stiffness curves of the umbilical cable under different curvatures. Moreover, because the device is in rigid connection with the umbilical cable by means of two sets of hoops, the problem of stress concentration caused by flexible connection of a steel strand rope is avoided, and the rigid connection ensures that tensile loads can be applied to two points of the umbilical cable in a balanced manner during an experiment, thereby improving the accuracy of bending stiffness testing results.

The invention discloses an environment-friendly low-pressure pulse bag type dust collector, and relates to the technical field of bag type dust collectors. Comprising a dust remover and a dust collecting hopper, a filter bag frame is installed in the dust remover, multiple sets of filter openings are formed in the outer wall of the filter bag frame, filter bags are fixed to the bottoms of the filter openings, bag cages are installed on the inner walls of the filter bags, dust removing assemblies are arranged on the inner walls of the bag cages, threaded rods are rotatably installed at the bottom of the filter bag frame, moving seats are installed on the outer walls of the threaded rods, and cleaning assemblies are arranged on the outer walls of the moving seats. Electric push rods are symmetrically mounted on the two sides of the inner wall of the dust remover, push blocks are fixed to the extending ends of the electric push rods, gravity sensors for controlling the extending lengths of the electric push rods are mounted on the two sides of the top of the filter bag frame, a limiting plate is fixed to the inner wall of the dust collecting hopper, a dustproof baffle is slidably mounted in an inner cavity of the limiting plate, and a vibration assembly is arranged on the outer wall of the dustproof baffle. By arranging the ash removal assembly, the utilization rate of pulse airflow is increased, and the cleaning effect of the bottom of the filter bag is further enhanced.

The present disclosure provides a display mounting support, including a wall plate, two hanging assemblies, and two levelness adjusting members. The wall plate includes a mounting portion. Each of the two hanging assemblies defines a hooking portion for suspending on the mounting portion. The two levelness adjusting members respectively corresponds to two the hanging assemblies. Each levelness adjusting member includes an adjusting plate and an adjusting screw. The adjusting plate defines a threaded hole in a height direction. A threaded rod of the adjusting screw is threaded to the threaded hole of the adjusting plate, and an end of the threaded rod rests against the mounting portion of the wall plate. The adjusting plate is connected to the corresponding the hanging assembly. The threaded rod of the adjusting screw screwed into the threaded hole on the corresponding adjusting plate is capable of being changed by rotating the corresponding adjusting screw, so as to adjust a levelness of the display screen connected between the two hanging assemblies.

The invention discloses a soil sampling device for land resource planning and a sampling method thereof, and belongs to the technical field of soil sampling, the soil sampling device comprises a supporting seat fixedly supported above the ground at a sampling position, a stand column is fixedly mounted on the upper surface of the supporting seat, and a top seat is fixedly mounted at the top of the stand column; an adjusting motor is fixedly mounted at the top of the top seat, meanwhile, a threaded rod is fixedly mounted at the output end of the adjusting motor, a movable seat is arranged on the outer side of the stand column, and a sampling barrel is rotationally mounted in the middle of the movable seat. The cutting base is fixedly installed at the lower end of the sampling barrel, the drilling efficiency of the sampling barrel is improved, and a cutting assembly is arranged on the inner side of the cutting base. According to the soil sampling device for land resource planning and the sampling method of the soil sampling device, residual soil dust in previous sampling can be automatically cleaned before sampling, the lower end of sample soil can be segmented, automatic clamping and supporting are conducted, and the sample soil can be completely taken out conveniently.

The utility model provides an angle steel tower foot welding processing platform, and relates to the technical field of welding processing platforms, the angle steel tower foot welding processing platform comprises a workbench, the top of the workbench is fixedly connected with a fixing assembly, and the top of the fixing assembly is fixedly connected with a plurality of limiting assemblies; the fixing assembly comprises a fixing frame, a plurality of mounting grooves are formed in the top of the fixing frame, and threaded rods are rotationally connected to the inner surfaces of the mounting grooves. According to the utility model, through the cooperative use of the first handle, the threaded rod, the guide rod, the moving block, the clamping block and the mounting groove, not only can the tower foot bottom plate be fixed, but also the limiting assembly can be driven to move synchronously, and then through the cooperative use of the second handle, the bidirectional screw rod, the clamping plate, the auxiliary rod and the limiting frame, the tower foot bottom plate can be fixed. And the cross-shaped tower frame on the tower foot bottom plate is clamped and fixed, so that the tower foot bottom plate and the cross-shaped tower plate are conveniently welded after being fixed, and the welding efficiency of the tower foot is improved.

The utility model provides a laminated glass flat pressing machine, which relates to the technical field of glass flat pressing equipment, and comprises a fixed plate, four ends of the bottom of the fixed plate are provided with support columns, the fixed plate is internally provided with a fixed groove, the fixed groove is internally provided with a clamping device, two ends of two sides of the fixed plate are provided with connecting plates, and the two ends of the fixed plate are respectively provided with a clamping device. The four connecting plates are equally divided into two groups, first guide rods are installed on the opposite faces of the two groups of connecting plates, the surfaces of the two first guide rods are movably sleeved with moving frames, moving grooves are formed in the inner sides of the moving frames, and rolling devices are arranged in the moving grooves. According to the laminated glass flattening device, the limiting groove, the first forward and reverse motor and the second forward and reverse motor are electrically connected with the external controller, and laminated glass needing to be flattened is placed on the top of the fixing plate; the first forward and reverse motor is started through an external controller to drive the two-way threaded rod to rotate, and meanwhile the movable rod is driven to move in the direction opposite to or opposite to the direction of the second guide rod.

A threaded fastener for securing a plate to a layered substrate is provided, as well as methods for installing the threaded fastener. An exemplary threaded fastener may include a head, and a shank having a longitudinal axis between a first end and a second end. The shank may be connected to the head at the second end. The shank may have a pointed terminus at the first end. The shank may have a first portion between the first end and a transition region. The first portion may include a first thread having a first thread profile that encircles the first portion. The shank may have a second portion between the transition region and the second end. The transition region may reside between the first portion and the second portion. The second portion may include a second thread having a second thread profile that encircles the second portion.

The invention discloses a high-power miniature electronic transformer, and relates to the technical field of miniature transformers, the high-power miniature electronic transformer comprises a main body, the main body comprises a lower magnetic core, the top end and the inner side of the lower magnetic core are respectively provided with an upper magnetic core and a base, one side of the outer surface of the base is provided with pins and an adjusting mechanism, and the outer surface of each pin is provided with a heat dissipation mechanism. Fixing mechanisms are arranged on the surfaces of the upper magnetic core and the lower magnetic core, more excellent compatibility and space utilization rate are achieved, a threaded rod is taken down through a rotating handle, then a clamping block is driven to move by moving a connecting rod, and then a reset spring is driven by the clamping block to stretch out and draw back on the inner side of a containing groove. Then the number of the pins can be reduced or increased according to the size of the space, adjustment of the distance between the pins is completed, then the clamping blocks drive the multiple sets of pins to move synchronously through resetting of the reset springs, and the pins of different sizes can be replaced according to needs to adapt to different placement spaces.

The invention discloses automobile exhaust pipe welding equipment, and relates to the technical field of exhaust pipe welding, the automobile exhaust pipe welding equipment comprises a supporting table and a welding gun, and further comprises a pipe body stabilizing mechanism, a cleaning adjusting mechanism and a follow-up air injection mechanism; by means of the design of the arc-shaped grooves, the sliding columns and the inner supporting plates, the inner wall of the automobile exhaust pipe can be tightly attached, uniform supporting force is provided, the exhaust pipe is preliminarily fixed, it is guaranteed that the position of the exhaust pipe is stable before welding, and welding errors caused by shaking or dislocation are reduced; by means of the design of a first threaded rod and an outer clamping plate, the outer wall of the exhaust pipe can be further clamped, the overall stability is enhanced, the exhaust pipe is further stabilized by combining preliminary fixing of an inner supporting plate, follow-up welding operation can be conducted more accurately, and therefore the exhaust pipe can be rapidly positioned.

An adjustable device holder may include a first cradle portion coupled to a second cradle portion. A connector, such as a threaded rod, may be partially disposed within a first slot in the first cradle portion and a second slot in the second cradle portion. A fastener and a spring may be at least partially disposed in the second slot. A cradle adjustment knob may be coupled to the threaded rod such that rotation of the cradle adjustment knob in one direction may thread the threaded rod into the threaded fastener and rotation of the cradle adjustment knob in an opposite direction may thread the threaded rod out of the threaded fastener. The cradle adjustment knob may tighten the cradle portions against the device or spread the cradle portions apart. The spring may exert a force as the cradle portions are tightened against the device.

A threaded fastener for securing a plate to a layered substrate is provided, as well as methods for installing the threaded fastener. An exemplary threaded fastener may include a head, and a shank having a longitudinal axis between a first end and a second end. The shank may be connected to the head at the second end. The shank may have a pointed terminus at the first end. The shank may have a first portion between the first end and a transition region. The first portion may include a first thread having a first thread profile that encircles the first portion. The shank may have a second portion between the transition region and the second end. The transition region may reside between the first portion and the second portion. The second portion may include a second thread having a second thread profile that encircles the second portion.

The invention discloses a thermochemical coupling intelligent transformer substation dehumidification and refrigeration system, and relates to the technical field of transformer substation dehumidification and refrigeration systems, the thermochemical coupling intelligent transformer substation dehumidification and refrigeration system comprises a shell, a cooling block, a fan, an air inlet, an air outlet and an air adjusting assembly, the inner wall of the shell is provided with a processing box, and the inner wall of the processing box is provided with the cooling block; a draught fan is installed on the inner wall of the treatment box, and an air adjusting assembly is installed on the inner wall of the treatment box. Cooling is conducted through a cooling block through wind power, a first motor rotates to drive a threaded rod to rotate, the threaded rod rotates to drive a threaded sleeve to move, the threaded sleeve moves to drive an L-shaped rod to move, the L-shaped rod moves to drive a first sliding barrel to move, and the first sliding barrel moves to enable the L-shaped rod to drive a flow guide plate to move through a rotating shaft; the flow guide plate moves to change the position, and cooled air is directionally discharged through the air outlet through blocking of the flow guide plate, so that the functions of conveniently adjusting the refrigeration position and improving the cold position applicability of the dehumidification refrigeration system of the transformer substation are achieved.

The invention discloses a metal casting machining pouring device capable of preventing air hole generation, and relates to the technical field of metal casting machining, the metal casting machining pouring device comprises a base, two sets of stand columns are symmetrically installed at the top of the base, a fixing plate is fixedly installed at the tops of the two sets of stand columns, and the metal casting machining pouring device further comprises a pouring assembly arranged above the base, the rotating base is arranged on one side in the rotating base, the rotating base is hinged to one side of the top of the base, threaded rods are symmetrically connected to the upper portions of the two sides in the rotating base in a threaded mode, and one end of each threaded rod is rotationally connected with a positioning plate; according to the mold for casting the metal casting, in the casting process of the metal casting, the mold can be kept inclined in the casting process and can gradually rotate to be perpendicular to the horizontal plane in the casting process, the inclination angle of the mold is adjusted according to the type of the metal casting, the situation that the machining quality of the casting is affected after casting is completed is avoided, and practicability is improved.

The invention relates to the technical field of cutting, in particular to a special steel part machining cutting device which comprises a mounting plate, a third mounting frame is fixedly mounted at the top of the mounting plate, a third motor is slidably mounted at the bottom of the third mounting frame, and a protective sleeve is fixedly mounted on the outer surface of the third motor. The cooling mechanism is used for cooling the third motor; the cooling mechanism comprises two second gears, the two second gears are rotationally mounted on one side of the protective sleeve and are meshed with each other, and one second gear is fixedly connected with a third motor; an output shaft of a second motor drives a threaded rod to rotate in an inner cavity of a second groove, meanwhile, the threaded rod can drive a second sliding block, the second sliding block further drives an electric telescopic rod and a third motor to move, an output shaft of the third motor is connected with a cutting knife, and the cutting knife is located in an inner cavity of a protective sleeve. And the purpose that the third motor drives the cutting blade to rotate and move to cut the special steel is achieved.

The utility model relates to the technical field of flange machining, and discloses a tool clamp for flange machining, which comprises a base, a first servo motor is arranged in the middle of one side in the base, two driving wheels are sleeved outside the output end of the first servo motor, and transmission belts are sleeved outside the two driving wheels. When the clamp is used, a second threaded rod is driven to rotate through an arranged third servo motor, so that first fixing blocks at the upper end of a movable plate can move and abut against the inner wall of a flange at uniform intervals, and meanwhile, second fixing blocks are driven to move and press the outer wall of the flange at uniform intervals through an electric telescopic rod at the upper end of the movable plate; therefore, the inner wall and the outer wall of the flange can be effectively supported and fixed, deviation and errors in the machining process are reduced, the stability in the machining process is improved, the risks of position deviation and shaking are reduced, and then the machining precision and the product quality are improved.

The utility model discloses a hub spinning machine which comprises a processing chamber and a hub blank, two opposite sides of the inner wall of the processing chamber are respectively provided with a rough rotary knife and a fine rotary knife, the bottom end of the processing chamber is provided with a piece jacking mechanism and a deviation rectifying mechanism, the top end of the processing chamber is provided with an opposite jacking mechanism, and the opposite jacking mechanism comprises a piece jacking block. The machined part top seat is located in the containing ring, the hub blank is located between the part ejecting block and the machined part top seat, the upper end of the machined part top seat is in the shape of a circular truncated cone, it can be guaranteed that the angle of the hub blank does not deflect when the hub blank is machined, and the yield of finished hub products is increased. The clamping connection is formed by the pressing block and the clamping groove, the power threaded rod and the fixing plate are rotationally connected, the power threaded rod and the meshing threaded rod are connected in a meshing mode, and the meshing threaded rod and the sliding sleeve are rotationally connected, so that it can be guaranteed that a hub blank is stable and does not shake during machining, and the machining quality is guaranteed; and the device can adapt to hub blanks of different models.

The invention relates to the technical field of galvanized sheet laser thickness measurement, in particular to a galvanized sheet laser thickness measurement device and method, which comprises a base, an overhead frame is fixedly mounted on the upper side of the base, a detection table is fixedly mounted on the overhead frame, and a fixing assembly is fixedly mounted on the inner wall of the detection table. A first-stage moving opening is formed in one side of the detection table, a thickness measuring assembly is slidably installed in the first-stage moving opening, and stable sliding rods are fixedly installed on the upper side and the lower side of the detection table; the output end of a cleaning motor drives a secondary driving threaded rod to rotate, the secondary driving threaded rod drives a cleaning moving block to move, the cleaning moving block drives a corresponding cleaning box to horizontally move through two transmission rods, and two driving blocks drive a corresponding reciprocating frame to reciprocate. And the cleaning scraper performs high-frequency staggered scraping, so that an oxide layer on the surface of the galvanized sheet is cleaned, and the accuracy of thickness measurement data is improved.

The invention belongs to the technical field of pipeline inner wall cleaning, and particularly relates to a self-adaptive pipe diameter adjusting type petroleum oil pipe intelligent cleaning robot which comprises a shell, and the shell is composed of a left shell body and a right shell body which are the same in structure. According to the supporting mechanism, a bidirectional threaded rod linkage structure hinged through a universal joint is adopted, and an electromagnetic cylinder and a moving block are matched to cooperatively control supporting legs to stretch out and draw back dynamically, so that the device is adaptive to different pipe diameters and bent pipe forms, and the device can be stably attached in a round pipe, an oval pipe or a bent pipe; the driving mechanism is based on bevel gear transmission and is combined with a radial pressure compensation mechanism to realize the multidirectional moving capability of vertical climbing and horizontal propelling; the exploration mechanism is integrated with a two-degree-of-freedom holder, and the cleaning process is monitored in real time through axial looking and radial pitching scanning in cooperation with self-adaptive light supplement; the cleaning mechanism innovatively integrates a rotary cutting drill bit, an adjustable blade set and a high-speed brush roller, the operation radius is dynamically adjusted through an extension rod, and stubborn scaling crushing, pipe wall scraping and chipping sweeping are synchronously completed.

The utility model discloses a reverse osmosis membrane testing device which comprises a testing table, a placing groove, a valve, a water storage tank, a water suction pump and a water conveying pipe hydraulic oil cylinder, the placing groove is formed in the testing table, a first elastic piece is arranged in the placing groove, a sewage draining opening is formed in the bottom of the placing groove, a water purifying pipe is arranged in the sewage draining opening, and a water outlet is formed in the water purifying pipe. A sealing gasket is arranged at the top of the water purification pipe, a water purification bin is connected to the bottom of the sealing gasket, a sewage bin is arranged at the bottom of the sewage outlet, and a partition plate is arranged in the sewage bin and the water purification bin. A clamping and fixing joint composed of a placing groove, an extrusion cover, a fixing table and a hydraulic oil cylinder is arranged on the test table, so that a reverse osmosis membrane placed in the placing groove can be quickly clamped and fixed through the extrusion cover by virtue of the movement of the hydraulic oil cylinder, and the extrusion cover is connected to the fixing table through a threaded rod, so that different heights at different positions are avoided; fine adjustment can be carried out through rotation of the threaded rod, and a first spring piece is arranged in the containing groove.

The invention discloses cutting equipment for rock wool board production and an operation method thereof, and relates to the technical field of rock wool board production.The cutting equipment for rock wool board production comprises two supporting frames, a conveying belt is arranged on one side between the two supporting frames, and a roller shaft is rotationally connected to the other side between the two supporting frames; the cutting assembly is arranged on one sides of the tops of the two supporting frames, the cutting assembly comprises a fixing frame and a positioning assembly, the positioning assembly is arranged on the other sides of the tops of the two supporting frames, the fixing frame is fixedly installed on one sides of the tops of the two supporting frames, a through groove is formed in the top of the fixing frame in a penetrating mode, and a threaded rod is rotationally connected to the upper portion of the interior of the fixing frame; according to the rock wool board cutting device, the rock wool board can be continuously cut by controlling the movable base to continuously move left and right, the rock wool board can be flapped in the cutting process, dust attached to the rock wool board can be reduced, the cleaning effect is improved, the situation that cleaning needs to be conducted again in the follow-up process in order to not affect the using effect of the rock wool board is avoided, and the production quality and practicability are improved.

The invention relates to the technical field of medical apparatus and instruments, in particular to a pressure-visible automatic decompression radial artery compression hemostat which comprises a base, a fixing box is fixedly mounted at the upper end of the base, two sets of fixing rods are fixedly connected to the two sides of the base, and the outer surfaces of one set of fixing rods are movably sleeved with a bandage. A radial artery pressing block is installed at the bottom of the base, and a pressing mechanism is arranged in the fixing box. Through the arrangement of the compression mechanism, the pressing distance of the hemostatic pad is controlled according to a set pressure value, the pressure reduction time and the number of turns of the threaded rod driven by the automatic control driving motor to rotate are set according to the time point needing pressure reduction and the amount needing pressure reduction, the pressing strength on a puncture part is reduced every time when the pressure reduction time point is reached, and the puncture effect is improved. The situation that a doctor cannot adjust the hemostat in time is avoided, the doctor is reminded to check and observe whether the skin color of the puncture part of the patient is abnormal or not through the loudspeaker and the wireless communication module, and therefore pressure can be adjusted in time.

The invention discloses an artificial quartz stone plate fine trimming device, and belongs to the technical field of plate trimming devices, the artificial quartz stone plate fine trimming device comprises a bottom plate, a trimming frame, a moving device, an inner wall mounted on the trimming frame and used for driving an artificial quartz stone plate to move, and a moving frame mounted on the top of the outer wall of the moving device and used for driving the artificial quartz stone plate to move. The rack is used for placing artificial quartz stone plates. According to the artificial quartz stone plate fine trimming device, a centering mechanism is matched with a third forward and reverse motor to drive a third two-way threaded rod to rotate, so that two clamping plates are close to each other on a second guide rod, an artificial quartz stone plate can be accurately fixed to the center position of a moving frame, the position precision of the plate in the trimming process is guaranteed, and the trimming quality is improved; the height of the feeding table is adjusted through the lifting component to be matched with the height of the moving frame, then the plates are pushed to the moving frame from the feeding table through the feeding component, automatic feeding of the plates is achieved, and the machining efficiency is improved.

The utility model provides a threaded connecting piece and battery pack, wherein the threaded connecting piece comprises a threaded rod and a flange plate, the threaded rod is used for being in threaded connection with a piece to be connected, the flange plate is provided with a press fit surface, one end of the threaded rod is connected to the press fit surface, the press fit surface is used for being pressed on the piece to be connected, and the threaded rod is connected with the flange plate. An anti-scraping cambered surface is arranged around the periphery of the pressing surface, and the anti-scraping cambered surface and the pressing surface are arranged in a tangent manner. The threaded connecting piece provided by the utility model can solve the technical problem that the threaded connecting piece is easy to cut out flying wires and chippings on a piece to be connected.

The utility model relates to the technical field of welding equipment, in particular to plate-fin heat exchanger welding equipment which comprises a bottom plate, a positive and negative tooth two-way lead screw is rotationally installed at the top of the bottom plate, and first internal thread blocks are connected to two sections of threaded rods, opposite in thread turning direction, of the positive and negative tooth two-way lead screw in a threaded and sleeved mode. Clamping plates are installed on the side faces of the first internal thread blocks, limiting grooves are formed in the opposite faces of the two clamping plates, and a plurality of openings communicating with the limiting grooves are formed in the bottoms of the clamping plates. The plurality of mounting strips move downwards to be inserted into the wave grooves of the fins, and the bottom ends of the mounting strips penetrate through the wave grooves and the openings of the fins, so that the welding gun heads are positioned in the wave grooves, and the welding gun heads are inserted into the wave grooves of the fins through the mounting strips. And the welding gun head can be conveniently inserted into the wave groove of the fin to weld the fin and the partition plate.

The utility model relates to the technical field of shell and tube heat exchangers, and discloses a shell and tube heat exchanger with a heat exchange area adjusting function, which comprises a shell and two supporting seats, the top surfaces of the two supporting seats are fixedly connected with the bottom surface of the shell, an adjusting mechanism and a filtering mechanism are arranged on the outer side of the shell, and the filtering mechanism is positioned on the outer side of the adjusting mechanism; the adjusting mechanism comprises an adjusting assembly and a heat exchange assembly. The adjusting assembly is located on the surface of the heat exchange assembly. The heat exchange assembly comprises two tube boxes. According to the shell-and-tube heat exchanger, the tube box and the tube plate are conveniently mounted and dismounted through the adjusting mechanism and the heat exchange assembly by means of first bolts, an operator can conveniently dismount and maintain the interior of the shell-and-tube heat exchanger, the adjusting assembly drives two sliding blocks to move by means of a double-end threaded rod, and therefore a baffle slides out of a sliding groove and blocks water entering a heat exchange tube; the number of the heat exchange pipes is adjusted, the heat exchange area is conveniently controlled, the heat exchange requirements under different working conditions are met, and the flexibility and efficiency of the shell and tube heat exchanger are improved.

The invention provides a crane mechanical arm welding tool, and belongs to the technical field of crane welding. The tool comprises a welding table, a positioning clamping plate, a pushing nut cylinder, a rack and a limiting baffle, a first supporting plate is fixedly arranged on the welding table, the positioning clamping plate is configured to slide along the welding table, the pushing nut cylinder is rotationally arranged on the first supporting plate, a pushing threaded rod is connected into the pushing nut cylinder through threads, and the positioning clamping plate is connected with the pushing threaded rod; a gear is fixedly arranged on the pushing nut cylinder, the rack is meshed with the gear, the rack is configured to move relative to the gear and used for driving the gear to rotate, the limiting baffle is used for limiting the moving distance of the rack, and the position of the limiting baffle is adjustable. The crane mechanical arm welding tool can meet the requirement for continuous welding of U-shaped steel plates and C-shaped steel plates.

The invention relates to the technical field of bridge detection devices, and discloses a bridge detection device based on intelligent detection equipment, which comprises a bridge main body, a moving frame is arranged above the bridge main body, the top of the moving frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a threaded rod, and the end part of the moving frame is fixedly connected with a moving vehicle. By arranging the adjusting mechanism, when a moving vehicle drives a moving frame to run to the middle of the bridge body, then a motor is started to drive a threaded rod to rotate, when the threaded rod rotates, a threaded ring moves downwards, when the threaded ring moves, an adjusting rod is driven to move downwards, and when the adjusting rod moves, an adjusting plate is pushed to move downwards; when the adjusting plate moves, the reset elastic rod is pulled to extend downwards, when the adjusting rod moves, the bent rod is driven to move downwards, when the bent rod moves, the sliding frame is driven to slide downwards on the inner wall of the groove, and when the sliding frame slides, the elastic frame is extruded.

The invention discloses an irrigation sprayer for planting dendrobium officinale, and relates to the technical field of sprayers. The device comprises a supporting frame, a plurality of rollers are rotatably connected to the bottom of the supporting frame, a mounting frame is fixedly mounted on the supporting frame, a water supply assembly and a plurality of sliding sleeves are fixedly mounted on the mounting frame, the sliding sleeves are slidably arranged on the mounting frame in a sleeving mode, threaded holes are formed in the sliding sleeves in a penetrating mode, and threaded rods are in threaded connection with the threaded holes; the first ends of pipelines are fixedly installed on the multiple sliding sleeves, the first ends of the pipelines are rotationally connected with atomizing nozzles through rotating joints, and the second ends of the multiple pipelines communicate with a water outlet of the water pump. The sliding sleeve is fixed to the mounting frame through the threaded rod and the threaded hole, then the distribution distance and layout of the atomizing nozzles are flexibly changed, the rotating joint allows the nozzles to rotate within a certain angle, and the spraying direction can be adjusted according to actual needs while it is ensured that water flow is smooth.

The utility model discloses a steel belt end guiding butt joint device which comprises a working table, a first U-shaped plate is fixedly installed on the top of the working table, a second U-shaped plate is fixedly installed on the top of the first U-shaped plate, a pressing mechanism is arranged on the top of the second U-shaped plate, and a welding head is installed on one side of the second U-shaped plate through a first moving mechanism. A first conveying roller is driven by a third motor to rotate, the steel belt can be conveyed through the first conveying roller and a second conveying roller, the ends of the steel belt are guided to be in butt joint, a worm wheel is driven by a second motor to rotate, the worm wheel drives a two-way threaded rod to rotate, and the two-way threaded rod drives two sets of clamping plates to move oppositely. According to the steel strip butt joint device, the two sets of clamping plates clamp a steel strip, the steel strip is clamped and subjected to anti-deviation arrangement, butt joint of the steel strip is more accurate, the welding head is driven by the first motor to move, and the butt joint position of the ends of the steel strip can be welded through the welding head.

The utility model provides a gear rack slotting device, which relates to the technical field of gear rack slotting processing, and comprises a mounting frame, a fixed box, a first motor, a turntable, a gear rack, a base, a cylinder, a clamping seat, a thread groove, a fixed block, a through hole and a guide rod for connecting the base and the fixed block on the clamping seat, a supporting frame is arranged on one side of the fixing box, a compressible cushion block is arranged on the supporting frame, a positioning plate is arranged on one side of the cushion block, a cutting box is arranged in the mounting frame and located on one side of the fixing box, and a second motor is arranged in the cutting box; when the device is used, the two ends of a single threaded rod can be slotted by controlling rotation of the rotary disc, the threaded rod does not need to be disassembled again and then fixed again in the process, the slotted efficiency of the threaded rod can be improved, and the use effect is good.