54results about How to "Restrict up and down movement" patented technology

The invention provides an umbrella fabric dyeing and finishing machine, and belongs to the technical field of machinery. The machine solves the problem that existing dyeing and finishing machines are hard to use. The umbrella fabric dyeing and finishing machine comprises a rack and a fabric feeding roller, a dyeing chamber, an ironing chamber and a cloth roller which are all arranged on the rack. A dye tank is arrange at a side of the sack, support plates are arranged in the dyeing chamber, the support plates are two plates wherein a dyeing zone is formed between the two plates, sprayers are arranged at two opposite sides of the two support plates, each support plate is provided with a plurality of the sprayers wherein the sprayer distribution direction is perpendicular to the fabric delivery direction, a strip-like flow channel is arranged on each support plate while the sprayers are communicated with the flow channel, a dye delivery pump is arranged in the dyeing chamber, the inlet of the dye delivery pump is communicated with the dye tank through a pipe, and one end of each flow channel is closed while the other end is open, wherein the open end of each flow channel is communicated with the outlet of the dye delivery pump through a telescopic connecting piece. The dyeing and finishing machine further comprises two elevator mechanisms which can separately drive the up-and-down movement of the two support plates. The machine has the advantage of easy utilization.

The invention discloses a mounting structure of a control disc seat of a washing machine and the washing machine, pertaining to the field of washing devices with the view of solving the problem that a control disc seat of a conventional machine is installed complicatedly.The mounting structure of the control disc seat of the washing machine comprises a first mounting plate, a second mounting plate and the control disc seat. An accommodation space is foemen by the first mounting plate and the second mounting plate. A flanging of the control disc seat is clamped into the accommodation space and used for controlling the control disc seat to limit. The washing machine comprises the mounting structure of the control disc seat. The mounting structure of the control disc seat of the washing machine is simple in installation procedures and can save time and labor. The washing machine is high in production efficiency and low in manufacture cost.

The invention provides a multifunctional pipeline gas self-closing valve and a self-closing method thereof. A first valve rod and a second valve rod are arranged in an in-valve working space of a valve body, one end of the first valve rod is connected with a magnet in an automatic valve, the other end of the first valve rod is connected with the second valve rod, and a magnetic disc is assembled at the bottom end of an attraction rod and connected with the magnet at the upper end of the first valve rod in an attraction manner; and the upper end of the attraction rod in an electromagnetic head drives the first valve rod to move downwards in the valve body through the electromagnetic effect, and the second valve rod is driven to move horizontally in the valve body through the guiding effect of a pin hole of the first valve rod on a pin of the second valve rod. The mechanical control function of the gas self-closing valve and the electric appliance control function of a gas electromagnetic valve are combined, when the gas supply pressure of a pipeline is under-pressure, over-pressure and over-flow, a machine is automatically closed, a gas source is cut off, meanwhile, the remote control cut-off function is achieved, the gas source is remotely controlled and emergently cut off in linkage with a gas alarm, manual opening is achieved, multiple functions are achieved, and gas use safety is guaranteed.

The invention relates to the technical field of electrical equipment and discloses a sleeve-type safety clip and a high-voltage switch cabinet. The sleeve-type safety clip comprises a first clamping rod, a second clamping rod and a fixing assembly, wherein one end of the first clamping rod is provided with a sleeve; the axial direction of the sleeve is consistent with the extending direction of the first clamping rod; one end of the second clamping rod is inserted in the sleeve and can slide along the axial direction of the sleeve; one end, away from the sleeve, of each of the first clamping rod and the second clamping rod is provided with a clamping assembly; and the fixing assembly is used for limiting relative movement between the second clamping rod and the sleeve. an upper insulationbaffle and a lower insulation baffle are fixed through the sleeve-type safety clip, the problem of electric shock caused as the insulation baffle is opened mistakenly can be effectively solved, and the operation safety of an operator is improved.

The invention provides a dehumidifier filter screen inserting device and a dehumidifier. The dehumidifier filter screen inserting device comprises an inserting plate, a filter screen and a backup plate, wherein a side surface of the inserting plate is fixedly provided with two guide rails in parallel; the filter screen, the thickness of which is a, is provided with two parallel edges; each guide rail comprises a vertical plate the first end of which is vertically fixed on the inserting plate, and a flat plate fixed on the second end of the vertical plate; the flat plates and the inserting plate are parallel, the vertical plates, the inserting plate and the flat plates can form a guide rail groove for containing the parallel edges, the width of the guide rail groove is b, and the b is equal to (1-1.3)?a; the backup plate is fixed opposite to the inserting plate and is positioned on the outer side of an inserting end of the inserting plate, the backup plate and the flat plate are positioned on a same plane, a gap, the width of which is c, is formed between the backup plate and the side edge, and the c is equal to (1.4-2)?a. The dehumidifier filter screen inserting device provided by the invention has the advantages that the coordinating relationship among the thickness of the filter screen, the guide rail groove and the gap is limited, and thus the filter screen can be inserted into the guide rails conveniently.

The invention discloses a supporting base of a power device box. The supporting base comprises the support legs, a leveling device is arranged at the tops of the supporting legs, and a vertical plateand a damping device are arranged at the top of the leveling device. The vertical plate is installed at one side of the leveling device, one end of the damping device is installed on the leveling device at the inner side of the vertical plate, and the other end of the damping device is installed at the bottom of a supporting frame. A supporting cross rod is arranged at the top of the supporting frame and is installed at one side of the supporting frame, and an installation frame and a baffle are arranged at the top of the supporting cross rod. Through the arrangement of the installation frame,the power device box is convenient to install and position, the installation time is greatly shortened, and the working efficiency is improved. The leveling device can level the power device box to prevent the inclination of the power device box from influencing the normal work of the power device, and the damping device can reduce the vibration of the power device in the working process of the power device so as to reduce the damage to a power device body. Meanwhile, the noise is reduced, and the influence on the lives of people is reduced.

The invention discloses a dedicated clamp for processing an upper die and a processing method, and belongs to the field of die steel processing devices. The dedicated clamp comprises a die holder, a lower supporting piece, an upper adjusting piece and an angle adjusting mechanism; the die holder is provided with a clamping position where the upper die is arranged; the lower supporting piece and the upper adjusting piece are movably connected with the two ends of the die holder; the angle adjusting mechanism is connected with the upper adjusting piece; the die holder can be driven to rotate with the lower supporting piece as a supporting point through the upper adjusting piece, so that the angle of an upper die cutting edge surface is adjusted, and the upper die cutting edge surface is arranged at the horizontal processing position; and the distance between the lower supporting piece and a standard supporting surface is determined by a digital model, that is, the rotating angle of the die holder is determined, and the distance is finely adjusted through the combination with a pair of wedge blocks of which the inclined surfaces are matched so as to mill the upper die cutting edge surface with small angle change. The structure of the milling machine can be not replaced, the upper die cutting edge surface of different angles can be milled, high positioning precision of the upper die cutting edge surface is ensured, and the supporting stability of the clamp is high.

The invention provides a speckle suppression motion device based on a diffractive optical element. The speckle suppression motion device comprises a flexible thin film provided with a diffractive optical microstructure, and synchronous belt pulley stand columns, wherein the flexible thin film provided with the diffractive optical microstructure comprises a flexible variable angle array diffractiveoptical microstructure and a transmission section, the transmission section is interlocked with the flexible variable angle array diffractive optical microstructure, the transmission section is of asingle-sided synchronous belt structure having trapezoidal teeth or arc teeth, the transmission section sleeves the left and right synchronous belt pulley stand columns, the transmission section is engaged with the synchronous belt pulley stand columns, one of the synchronous belt pulley stand columns is connected with a driving device for driving the synchronous belt pulley stand column to rotate, and the other synchronous belt pulley stand column is mounted on a frame. The speckle suppression motion device based on the diffractive optical element improves the transmission efficiency, reducesthe wear on the thin film by rotating the stand columns, improves the stability of the system, prolongs the service life of the flexible thin film provided with the diffractive optical microstructure, and improves the laser speckle suppression effect.

The invention discloses a novel workpiece fixing assembly. The novel workpiece fixing assembly comprises a rack and a base used for fixing the rack. Bearing blocks are arranged on the top end face ofthe rack in a front-back correspondence manner. Clamping rings are fixedly arranged on the tops of the two bearing blocks. A workpiece is clamped and fixed between the front clamping ring and the rearclamping ring. The front side and the rear side of the rack are internally provided with first sliding and pushing grooves with the downward opening ends, wherein the first sliding and pushing grooves are arranged in a left-right correspondence manner. Sliding arms are arranged in the first sliding and pushing grooves in an up-down moving manner. An upper magnetic body and a lower magnetic body are fixedly arranged at the upper end and the lower end of each sliding arm correspondingly. The lower end of each sliding arm is provided with a left-right communication locking groove. A first magnetic device is fixedly arranged in the upper end wall of each first sliding and pushing groove. An electric connection piece electrically connected with the first magnetic devices is fixedly arranged inthe left end face of the rack, and a left-right extending clamping groove is formed in the bottom end face of the rack.

The invention discloses an improved new-energy automobile storage battery device. The improved new-energy automobile storage battery device comprises an engine base and an installing box, wherein theengine base is fixedly arranged in an engine room of an automobile; the installing box is matched with the engine base for use; an installing groove with an upward opening part is formed in the installing box; a storage battery is arranged in the installing groove; handles are arranged at the top part of the storage battery in a left-right corresponding way; first sliding grooves which are in left-right corresponding arrangement and are provided with downward opening parts are formed in the installing box arranged at the left side and the right side of the installing groove; sliding columns which can smoothly slide up and down are arranged in the first sliding grooves; upper magnetic strips and lower magnetic strips are respectively and fixedly arranged on the upper ends and the lower endsof the sliding columns; locking grooves of which the left parts and the right parts are communicated are formed in the lower ends of the sliding columns; first magnetic induction devices are fixedlyarranged in the upper end walls of the first sliding grooves; an electric connecting piece electrically connected with the magnetic induction devices is fixedly arranged on the left end surface of theinstalling box; a clamping groove stretching left and right is formed in the bottom end surface of the installing box.

The invention discloses an improved LED display device, comprising a mounting bracket for an LED display screen and a base for fixing the mounting bracket. The mounting cavity with a port opening to the right is arranged in the mounting frame, and the first sliding slot is arranged in the front end wall and the rear end wall of the mounting cavity, and the first sliding slot is downwardly connected to the first sliding slot. The sliding column is mounted on the ground in the first sliding slot, and the upper and lower ends of the sliding column are respectively fixed with an upper magnetic piece and a lower magnetic piece. The lower end of the sliding connecting column is arranged with a left and right locking hole, the first upper magnetic device is fixedly arranged in an upper end wall of the first sliding slot, and a connecting pin electrically connected to the first upper magnetic device is fixedly arranged in the left end surface of the mounting frame, and a locking slot extendingfrom the left and right is arranged in the bottom end surface of the mounting frame.

The invention relates to the technical field of shelves and discloses a shelf and a cold storage device. The shelf comprises a shelf main body, wherein the shelf main body comprises a front shelving surface and a back shelving surface which are opposite; and the shelf main body is provided with a pair of opposite side edges which are outwards provided with limited flanges. The shelf has the beneficial effects that the limited flanges of the shelf are outwards arranged on the opposite side edges of the shelf main body, so that when the front surface or the back surface of the shelf is used, the limited flanges can be used as limited structures for limiting the position of the shelf so as to achieve the purpose of using the two surfaces of the shelf; a user can select any one surface as the front surface, thereby enhancing the use value of the shelf; and even though the shelf is reversely put by the user due to carelessness, the shelf still can be limited, thereby facilitating user application.

The invention provides a plastic package stator runner-free mold, and relates to a mold. In the prior art, the BMC plastic package stator and a material handle are integrated after injection molding, such that a special device is required to cut the material handle, finishing is performed, and disadvantages of more processes, time wasting, appearance affecting, environmental pollution and poor plastic package part quality are provided. The plastic package stator runner-free mold is characterized in that a middle position of a mold fixation seat plate is provided with a positioning ring and a main pouring nozzle concentrically arranged with the positioning ring, a mold fixation plate is provided with a material inlet chamber having an upward opening, a cold pouring nozzle is embedded into the material inlet chamber, a runner plate is arranged between the mold fixation seat plate and the mold fixation plate, a cold runner penetrating the main pouring nozzle and the cold pouring nozzle is arranged inside the runner plate, both sides of the runner plate are provided with a supporting foot higher than the runner plate, the runner plate and the cold pouring nozzle are provided with cooling channels, and thermal insulation layers are arranged between the cold pouring nozzle and the chamber wall of the material inlet chamber and between the runner plate and the mold fixation plate. According to the present invention, the BMC material always maintains an uncured flowing state in the runner plate, and no flowing water material is generated during an injection molding process so as to achieve material saving, energy consumption reduction and environment protection.

The invention relates to a high-adaptability bidirectional layered convection energy storage battery compartment, which comprises a compartment body, a heat conduction partition plate, an air conditioning refrigeration unit and an air inlet and outlet unit, and is characterized in that the heat conduction partition plate is used for dividing the internal space of the compartment body into two battery compartments arranged side by side, and the battery compartments are used for accommodating storage batteries; the air conditioning refrigeration unit is composed of air conditioners arranged in the two battery compartments respectively, and the two air conditioners are arranged oppositely in a diverging mode and used for oppositely blowing out cold air to enter the corresponding battery compartments for refrigeration; and the air inlet and outlet unit is composed of a dust-proof and sand-proof air conditioner air inlet device and a dust-proof and rain-proof air conditioner air outlet device which are arranged in each battery bin, and the dust-proof and sand-proof air conditioner air inlet devices are matched with the air conditioner. Compared with the prior art, the bidirectional layered fluid heat dissipation system is applied to the battery compartment of the energy storage container, the heat dissipation uniformity of the battery compartment of the energy storage container canbe effectively improved, and the sand prevention, dust prevention, rain prevention and shock prevention capabilities of the system can be effectively improved by adopting adaptive design for the battery compartment of the energy storage container.

The invention provides a lithium ion cylinder battery welding clamp and a use method thereof. The welding clamp comprises a cap clamp and battery core clamps, wherein the cap clamp is used for containing battery caps and is provided with four saddles in a circular manner thereon, each two adjacent saddles are arranged at 90 degrees, and the cap clamp can rotate; and the four counterbores are arranged on the battery core clamps, each two adjacent counterbores are arranged at 90 degrees, each counterbore is used for containing the battery cores after being injected with liquid, wherein all tagson the same battery and corresponding cap tags thereof are overlapped on the saddles of the cap clamp and welded together through an ultrasonic welding machine, and the battery core clamps can rotate. The invention solves the industrial difficult problem that the cap tags and the battery tags of the lithium ion cylinder battery can not be welded after liquid injection by using the ultrasonic welding machine; and simultaneously, a method of four-station 360 degree rotating welding is used so as to greatly improve welding rate and the method is more economical and safer than a conventional laser welding method.

The invention relates to the field of ceramic production, in particular to a ceramic container rotating based on the Chinese sexagenary cycle, and a manufacturing process thereof. The ceramic container and the manufacturing method thereof have the advantages that characters of celestial stems and terrestrial branches are matched with a rotating drum to display the date in the Chinese sexagenary cycle, and both aesthetics and practicability are achieved; by the manufacturing process of the ceramic container rotating based on the Chinese sexagenary cycle, the technical problem of producing suchan integrated-type rotating drum container is solved; an upper body, a lower body and a rotating drum body are formed respectively; the upper body and the lower body are bonded and fired after an inner drum is sleeved with the rotating drum, and the fired ceramic container is integrally good; carborundum is injected into the rotating drum through holes, and the rotating drum and the inner drum arepolished to make the rotating drum rotate smoothly; a metal ring is embedded in a gap of the rotating drum to restrict the moving up and down of the rotating drum.

The invention discloses a four-way adjusting switch of an electric seat. The four-way adjusting switch comprises a shell, a PCB assembly and a toggle button, a toggle switch assembly is installed on the PCB assembly, and the toggle switch assembly comprises a fixed seat installed on the PCB assembly and four rotating blocks which are arranged in the fixed seat and can swing up and down. Conductiverubber is arranged on a circuit control board assembly and located below the fixed seat, and a conductive rubber column matched with the rotating blocks is arranged on the portion, located below therotating blocks, of the conductive rubber. A rotating frame is installed in the fixed seat and located above the rotating blocks, a shifting rod is further installed in the rotating frame, the rotating direction of the shifting rod is perpendicular to the rotating direction of the rotating frame, and the upper portion of the shifting rod is installed on a shifting button. The four-way adjusting switch is few in parts, easy to assemble and low in part machining difficulty, manual welding is not needed, production quality control is facilitated, and the touch comfort of automobile operation is improved due to the flexible touch feeling of rubber.

The invention discloses a new type of cargo transfer and transportation device, which includes a cargo container for loading cargo and a load-carrying vehicle frame for transporting the cargo container. The cargo container is provided with a loading chamber that opens to the right. Both the front end wall and the rear end wall of the loading chamber are provided with a left-right symmetrical first sliding groove with the opening facing downwards. A sliding column is installed in the first sliding groove to slide up and down. The upper and lower ends of the sliding column are respectively An upper permanent magnet and a lower permanent magnet are fixedly arranged, the lower end of the sliding column is provided with a locking groove connecting left and right, the first electromagnetic device is fixedly arranged in the upper end wall of the first sliding groove, and the left end surface of the cargo box is fixed A fixed conductive block electrically connected to the first electromagnetic device is provided, and positioning slots extending left and right are provided in the bottom surface of the cargo box.

The invention discloses a cargo transfer transporting device. The cargo transfer transporting device comprises a cargo bin for containing cargoes and a bearing frame for transporting the cargo bin. Aloading cavity with a rightward opening is formed in the cargo bin. First sliding grooves which are bilaterally symmetric and are provided with downward openings are formed in the front end wall and the rear end wall of the loading cavity, and sliding columns are mounted in the first sliding grooves in a vertical sliding mode. Upper permanent magnets are fixedly arranged at the upper ends of the sliding columns, lower permanent magnets are fixedly arranged at the lower ends of the sliding columns, and locking grooves which are communicated left and right are formed in the lower ends of the sliding columns. First electromagnetic devices are fixedly arranged in the upper end walls of the first sliding grooves, a fixed conductive block electrically connected with the first electromagnetic devices is fixedly arranged in the left end face of the cargo bin, and a positioning groove stretching left and right is formed in the bottom end face of the cargo bin.

The invention discloses a workpiece fixing assembly. The workpiece fixing assembly comprises a rack and a base used for fixing the rack, supporting blocks are arranged on the end face of the top of the rack in a front-back corresponding mode, and a clamping ring is fixedly arranged on the top of each supporting block; a workpiece is clamped and fixed between the clamping rings at the front and back, first sliding-pushing grooves with the opening ends facing downwards are formed in the front side and the rear side of the rack in a left-right corresponding mode, and sliding arms are mounted in the first sliding-pushing grooves in an up-down movable mode; an upper magnetic body and a lower magnetic body are fixedly arranged at the upper end and the lower end of each sliding arm, a locking-joint groove communicating left and right is formed in the lower ends of the sliding arms, and a first magnetic device is fixedly arranged in the upper end wall of each first sliding-pushing groove; andan electric connecting piece electrically connected with the first magnetic devices is fixedly arranged on the left end face of the rack, and a clamping joint groove extending left and right is formedin the bottom end face of the rack.

The invention discloses a base component and a household appliance. The base assembly includes: a base, the base is provided with an installation channel, the base includes a base body and an annular mounting plate arranged on the lower surface of the base body, and the installation channel includes and communicates with A first installation channel and a second installation channel, the first installation channel is formed on the base body, the second installation channel is defined by the installation plate; leveling foot assembly, the leveling foot assembly It includes a supporting foot and a locking piece, the upper end of the supporting foot is located in the installation channel, at least part of the locking piece surrounds the part of the supporting foot outside the first installation channel, wherein, The locking member can move up and down during the rotation so that the supporting foot can be switched between a locked state and an unlocked state. The base assembly of the present invention has a simple structure.

The invention discloses a storage battery device used for new energy automobiles. The storage battery device comprises an engine base fixedly arranged inside an automobile cabin and an installation box cooperatively used with the engine base, wherein an installation groove with an upward opening is formed in the installation box; a storage battery is installed inside the installation groove; handles are correspondingly arranged on the left part and the right part of the top of the storage battery; first sliding grooves, with downwards openings, corresponding left and right and corresponding front and back are formed in the installation box on the left side and the right side of the installation groove; a sliding column is installed inside each first sliding groove smoothly vertically; an upper magnetic stripe and a lower magnetic stripe are fixedly arranged at the upper end and the lower end of each sliding column respectively; a locking groove capable of communicating left and right is formed in the lower end of each sliding column; a first magnetic sensing device is fixedly arranged inside the upper end wall of each first sliding groove; an electrical connection sheet electrically connected with the first magnetic sensing devices is fixedly arranged inside the left end surface of the installation box; and a clamping groove extending left and right is formed in the bottom surface of the installation box.

The invention provides a body frame and an automobile using the same. The automobile comprises the body frame, and the body frame comprises a frame, a floor and a side wall; the floor is arranged on the frame; the side wall and the floor are assembled together by a horizontal insertion structure; the body frame also comprises a frame and side wall fixing structure which can realize the fixation of the side wall and the frame after the side wall and the frame are assembled, and a stop structure which is arranged on the side wall and / or the frame and used for limiting the movement of the floor in the horizontal direction through stop fit with the floor. The body frame has the beneficial effects that after the side wall and the floor are assembled by insertion, the frame and the side wall are fixed, so that the vertical movement of the floor is limited, the horizontal movement of the floor is limited by the stop structure, and the floor is fixed; no bolts and other parts are used, so that the problem that the floor and the frame are fixed by the bolts to enable the floor fixation procedures to be troublesome is solved, and the fixation efficiency of the floor and the connection and fixation efficiencies of the whole body frame are improved.

The invention discloses a conveniently and stably installed satellite television for communication. The conveniently and stably installed satellite television for communication comprises a parabolic antenna, a tuner and an installation bottom plate; a fixed sleeve is arranged between the installation bottom plate and the parabolic antenna; the lower end of a support tube column passes through theinteriors of an externally threaded tube column and the fixed sleeve; a fastening threaded sleeve is also arranged on the outer side wall of the support tube column; the fastening threaded sleeve is positioned at the inner side of a threaded connection sleeve; the fastening threaded sleeve and the threaded connection sleeve are in threaded fit; a limiting column just below the fixed sleeve is arranged in the centre of the upper end face of the installation bottom plate; the axis of the limiting column is superposed with the axis of the fixed sleeve; multiple limiting strip-shaped grooves in one-to-one correspondence with limiting ribs and matched with the limiting ribs are arranged on the inner wall of the bottom wall of the support tube column; and the tuner is installed on one end of aninstallation transverse rod away from the fixed sleeve. The device is simple in structure, convenient to disassemble, replace and install, and firm to install and fix; the installation trouble due towhole rotation of the whole device when signals are adjusted can be avoided; furthermore, signal conduction lines are arranged in order; and the practicability is relatively high.

The invention discloses a novel new-energy automobile storage battery device which comprises a machine seat fixedly arranged in an automobile engine room and an installation box used in cooperation with the machine seat. An installation groove with an upward opening is formed in the installation box. A storage battery is installed in the installation groove. Lifting handles are correspondingly arranged on the left side and the right side of the top of the storage battery. Left-right corresponding and front-back corresponding first sliding grooves with downward openings are formed in the positions, on the left side and the right side of the installation groove, in the installation box. Sliding columns are installed in the first sliding grooves in an up-down flat sliding mode. Upper magneticstrips and lower magnetic strips are fixedly arranged at the upper ends and the lower ends of the sliding columns. Left-right intercommunicating locking grooves are formed in the lower ends of the sliding columns. First magnetic induction devices are fixedly arranged in the upper end walls of the first sliding grooves. An electric connecting sheet electrically connected with the corresponding first magnetic induction device is fixedly arranged in the left end face of the installation box. A clamping groove extending leftwards and rightwards is formed in the bottom end face of the installationbox.

The invention provides a support board elevating mechanism in a dyeing and finishing machine for umbrella fabrics and belongs to the technical field of machinery technology. The invention solves the problem of inconvenience usage of dyeing and finishing machines in the prior art. According to the support board elevating mechanism in a dyeing and finishing machine for umbrella fabrics, the dyeing and finishing machine for umbrella fabrics comprises a rack and a dyeing chamber which is installed on the rack; the support board is installed inside the dyeing chamber in the horizontal direction and one side of the support board is used for installing a sprinkler head; the elevating mechanism comprises a lead screw which is vertically installed at the other side of the support board and the lead screw is rotationally installed inside the dyeing chamber; a motor which can drive the lead screw to rotate about the axis of its self is installed on the rack; a nut is connected to the lead screw in a bolt joint mode and the lead screw is also sleeved with a straight-tube-like connecting cylinder at the outside; one end of the connecting cylinder is axially fixed with the nut through a first bearing and the other end of the connecting cylinder is fixed with the support board. The support board elevating mechanism in a dyeing and finishing machine for umbrella fabrics is convenient to use.

The invention discloses an improved agricultural fertilization device. The improved agricultural fertilization device comprises a fertilizer barrel and a trolley, wherein the fertilizer barrel is usedfor containing fertilizer; the trolley is used for pushing the fertilizer barrel; a storage cavity with an upward end opening is formed in the fertilizer barrel; first sliding grooves which are in left-right symmetry and are provided with downward end openings are formed in the front end wall and the rear end wall of the storage cavity; sliding columns which can slide up and down are arranged inthe first sliding grooves; upper magnetic blocks and lower magnetic blocks are respectively and fixedly arranged on the upper ends and the lower ends of the sliding columns; locking grooves of which the left parts and the right parts are communicated are arranged on the lower ends of the sliding columns; first magnetic devices are fixedly arranged in the upper end walls of the first sliding grooves; a conductive piece which is electrically connected with the first magnetic devices is fixedly arranged in the left end surface of the fertilizer barrel; a clamping groove stretching left and rightis formed in the bottom end surface of the fertilizer barrel.