94results about How to "To achieve the effect of saving effort" patented technology

This invention discloses one steel string weld points test machine, which comprises weight sensor, left clamper, left roller wheel, right clamper, right roller wheel and operation handle, wherein, the left clamper and roller wheel are fixed on wheel rack and right clamper and right roller wheel are fixed on random board fixed on rotation axis connected to operation handle through drive parts; the said rack is fixed with weight sensor and the left and right roller wheel work tank surface and weight sensor axis line are tangent with signal output wires connected to indicator.

The invention relates to a stationary fixture and in particular a rod piece clamping device. The rod piece clamping device comprises a base, a clamping component and a power component; the clamping component comprises a clamping table; a rail for mounting claws is arranged on the clamping table; the mounting claws are V-shaped, and at least five claws are orderly mounted on the rail in the same direction; the power component comprises a cylinder, a cylinder seat for mounting the cylinder, a drive rod and a hold-down block; the cylinder seat is fixed on a base body; the middle of the drive rod is hinged to the clamping table; one end of the drive rod is hinged to the push rod of the cylinder; the hold-down block is hinged to the other end of the drive rod by use of a connecting rod; the hold-down block is mounted on the rail and oppositely matched with the claws; aligning stop blocks aligned to rod pieces are arranged on the clamping table. The rod piece clamping device is ingenious and reasonable in arrangement, and capable of clamping a plurality of rods, and when the rods are in a clamped state, the rods are parallel and one ends of the rods are aligned to each other.

The invention relates to the technical field of railway vehicles, in particular to a railway vehicle top cover opening and closing mechanism which solves the problems that most of existing railway vehicles have no top covers or operators need to climb up the tops of railway vehicles having top covers to open or close the top covers, materials are likely to be exposed to the rain and damaged, and time and labor are wasted during operation. The railway vehicle top cover opening and closing mechanism comprises a rotary shaft and cranks, wherein the rotary shaft is controlled by a driving mechanism and penetrates through the interior of a vehicle body below a top cover, and the cranks are located on the two sides of the top cover; the two ends of the rotary shaft extend out of the two sides of the vehicle body; one end of each crank is hinged to the rotary shaft, and the other end of each crank is connected with one end of the top cover through a round pin; the other end of the top cover is provided with two top cover rolling wheels; the vehicle body is provided with rolling wheel tracks matched with the top cover rolling wheels; each rolling wheel track is formed by connecting a plurality of linear segments in an end to end mode. The operators can open and close the top cover without climbing up the vehicle top. The railway vehicle top cover opening and closing mechanism is simple in structure, good in reliability, low in cost and capable of being popularized and applied to installation of top covers of various types of railway vehicles.

The invention relates to a planting method for regenerated rice. The method comprises the following steps of 1) seed selection, 2) seed treatment, 3) rice seedling bed selection, 4) field management,5) sowing and seedling cultivating, 6) first-season rice management, 7) regenerated rice management and 8) harvesting. According to the method, the conditions required by benign growth of regeneratedrice are controlled in a targeted mode, not only can the field be reasonably utilized, but also the rice yield of the area suitable for growth of the regenerate rice is increased, reasonable management is conducted in the growth processes of first-season rice and the regenerated rice, the yield of the regenerated rice is effectively increased, the yearly yield of rice is increased, and the effectsof increasing yield and saving labor are achieved. Through measures of preferable seed selection, oil preparation and the like, not only can insects in the field be prevented, but also the antibacterial ability of seeds is enhanced. Treatment liquid used for treating liquid has the germination accelerating effect on the seeds, can inhibit mycete growing on the surfaces of the seeds, and reduce insects to make the seedling survival rate high, and high yield and optimal production of the regenerated rice are ensured.

The invention belongs to the technical field of hoisting machines, and particularly relates to a small hoisting machine used in municipal engineering. The small hoisting machine comprises a first winding wheel, a heavy base, a vertical support, a transverse support, a fixed pulley fixedly installed on the upper surface of one end of the transverse support, a first steel wire rope, a second steel wire rope, a swing plate and the like, wherein the reciprocating swing movement of the swing plate enables an input gear to rotate in a reciprocating mode, the input gear is used as a power source of aone-way transmission mechanism, so that the output gear can output power in a single rotating direction all the time, then the output gear drives a second winding wheel to enabled the second steel wire rope to be wound around the second winding wheel through a second rotating shaft, and the second steel wire rope lifts a heavy object; and after the input gear is no longer input with power, the one-way transmission mechanism can automatically self-lock, so that the safety of the small hoisting machine for hoisting the heavy object is guaranteed. According to the machine, the structure is simple, and a better use effect is achieved.

The invention discloses a goods carrier for house engineering construction. The goods carrier comprises a first bearing plate, a supporting plate and a rotating drum, the upper side of the inner top of the movable support is connected with a bearing frame through a compression spring. A motor is arranged on the rear side of the interior of the second bearing plate; the supporting plate penetratesthrough the conveying belt device; an isolation frame is fixed to the upper end face of the second bearing plate, an electric telescopic rod is fixed to the left side of the top of the isolation frame, the right end of a connecting rope penetrates through a limiting sleeve to be connected with a pull ring, the bottom of a rotating plate is rotationally connected between protruding blocks through ashaft rod, and a rotating cylinder is connected with the left end face of the rotating plate. According to the goods carrier for the house engineering construction, when the electric telescopic rod extends, the rotating plate can rotate rightwards under the action of gravity until the rotating plate is placed on the ground, then goods can be placed on the rotating plate and pushed upwards, the rotating cylinder rotates along with the rotating plate, and therefore the goods can be pushed in an auxiliary mode, and the labor-saving effect is achieved.

The invention discloses an adjustable labor-saving medical device clamp, which includes a mounting block, a crank and a clamping plate; the crank has two symmetrically arranged at the lower part of the mounting block, and the crank is connected to the mounting block through a pin shaft rotation, and the crank The lower end is connected to the clamping plate, the clamping plate is an arc plate, and a waist-shaped hole is opened on the upper handle body of the crank; the front and rear transparent cavity is opened on the mounting block, and the lower part of the cavity is provided with a movable plate. Two protruding posts are arranged symmetrically under the front end surface of the plate, and the protruding posts are located in the waist-shaped hole; a movable slider is arranged in the waist-shaped hole; a connecting rod is connected to the top of the movable plate, and the connecting rod The other end is connected to the operating handle; the top of the operating handle is symmetrically provided with a reset mechanism. The clamp of the invention is convenient to use and has the advantages of labor saving; meanwhile, the maximum opening angle of the clamping plate can be adjusted, and the flexibility is high.

The invention relates to brake equipment, in particular to bicycle brake equipment which can store the energy. The bicycle brake equipment is designed according to the energy storage principle of a volute spring, can store the kinetic energy into the elastic potential energy of the volute spring in the braking process and then releases the elastic potential energy when being started. The bicycle brake equipment comprises an axle shaft part, a gear changing part, a volute spring mechanism, a big gear wheel and a shifting fork, wherein the volute spring mechanism is arranged on the gear changing part; the big gear wheel is arranged on the axle shaft part; the upside of the big gear wheel is connected with the gear changing part and the downside thereof is arranged in the interior of the shifting fork; and the gear changing part comprises a pinion wheel, a dryer gear, a gear, a baffle plate and a wheel axle. The pinion wheel is meshed with the dryer gear which is respectively connected with the gear and the baffle plate and locked by a nut cap; and the pinion wheel is connected with an outside baffle plate by a wheel axle and locked by the nut cap.

The invention relates to the technical field of automobile spare parts, and discloses an automobile luggage rack. The automobile luggage rack includes installation seats and support frame assemblies.Each of the support frame assemblies includes an object placing plate; both ends of the object placing plate are connected to telescopic rods; one end of each of the telescopic rods is connected to asupport rod; one end of each of the support rods is provided with a clamping assembly; the outer surface of each of the telescopic rods is sleeved by a first tension spring; an elastic air bag is disposed below the object placing plate; one side of the elastic air bag is provided with a whistle; the whistle includes a blowing nozzle; a supporting upright column is disposed on the blowing nozzle; the supporting upright column is rotatingly connected to a rotating shaft; one end of the rotating shaft is provided with rotating blades; external peripheries of the rotating blades are fixedly connected to the inner surface of a same circular ring body; the upper surface of the blowing nozzle is slidingly connected to a sliding plate; a second flexible pull rope is connected between the sliding plate and the circular ring body; and gas is blown into the whistle, the whistle sounds through squeeze and press of the elastic air bag, thereby prompting a user that transloaded luggage is overweight. The automobile luggage rack is advantageous is that the effects of shock absorption and buffering are good, and the weight of loaded luggage is prompted to exceed a maximum bearing weight.

The invention relates to an aluminum alloy decorative buckle cover auxiliary buckling device for an exposed frame glass curtain wall. The aluminum alloy decorative buckle cover auxiliary buckling device comprises two steel pipe sliding rails (3) arranged side by side and a buckling assembly disposed between the two steel pipe sliding rails (3) in a sleeved mode. The buckling assembly includes a buckling handle (7) and a sliding rail attachment (4), the buckling handle (7) is slidably connected with the two steel pipe sliding rails (3) through the sliding rail attachment (4), and one end of thebuckling handle (7) is pivoted to the sliding rail attachment (4). Compared with the prior art, the aluminum alloy decorative buckle cover auxiliary buckling device has the advantages of saving timeand labor, protecting the paint surface and being high in installation efficiency.

The invention discloses a sub-sieve type tea loading trolley, which comprises a body, a handle and a carriage. The top of the carriage is provided with a feeding port, the upper layer of the carriage is provided with a vibrating screen, the vibrating screen is arranged obliquely, and the lower part of the carriage is provided with a tea collection box. The vibration motor is arranged on the outer side wall of the rear end of the carriage. The vibration motor is connected to the vibrating screen through a transmission device. The transmission device includes a large gear, a pinion gear, a transmission shaft and a pair of cams. The lower surface of the screen plate is supported on the cam. The side wall is provided with a box door for taking out the tea collection box; the invention not only facilitates the random movement with the automatic tea picking machine, but also provides a vibrating screen in the box, and the fresh tea leaves picked by the automatic picking machine pass through the vibrating screen, and the tea leaves are sequentially Screen out waste leaves, defective products, good products, and high-quality tea leaves, and store them in categories to reduce the extrusion and loss of broken leaves and branches on tea, and increase the rate of high-quality tea.

The invention relates to the machine field, in particular to a pipeline self-locking, clasping and pushing device and a usage method thereof. The device comprises more than one pushing ejector rod, wherein an anti-slip clasping and pushing piece is arranged at one end of each pushing ejector rod; the anti-slip clasping and pushing pieces are arc-shaped; the anti-slip clasping and pushing pieces define and surround a cylindrical pipeline channel used for accommodating a pipeline; the other end of each anti-slip clasping and pushing piece is connected with an outer frame in a hinge manner; the middle of each anti-slip clasping and pushing piece is connected with an inner frame in a hinge manner; a hydraulic self-locking and clasping mechanism is arranged between the outer frame and the inner frame on the same side; the hydraulic self-locking and clasping mechanism exerts force on the outer frame and the inner frame in opposite directions, so that relative displacement happens to the outer frame and the inner frame, the pushing ejector rods rotate with connection points of the pushing ejector rods and the outer frame and the inner frame serving as rotation pivots, and further the anti-slip pushing piece clasps the pipeline; and more than one traction force connector is arranged at one end, connected with the hydraulic self-locking and clasping mechanism, of the outer frame. The pipeline self-locking, clasping and pushing device can clasp the pipeline and push the pipeline to move forward.

The invention discloses a massaging hammer which comprises a handle, a first supporting rod and a second supporting rod. The first supporting rod and the second supporting rod are installed on the handle and form an included angle of 5-10 degrees in arrangement, a spring is installed between the first supporting rod and the second supporting rod, a first hammer head is installed at the tail end of the first supporting rod, a second hammer head is installed at the tail end of the second supporting rod, an inner pad is inlayed on the inner side of the first hammer head, a groove is formed in the inner pad, a massaging needle is installed in the groove, the top of the massaging needle is spherical in arrangement, a rubber protrusion is arranged on one side of the second hammer head, a massaging rod is arranged on the other side of the second hammer head, and the tail end of the massaging rod is arc-shaped in arrangement. The massaging hammer is easy to clean and convenient to use and has two massaging effects.

The invention relates to the technical field of copper foil production equipment, in particular to a guide device for copper foil production. The guide device comprises a mounting base, wherein a guide structure is mounted at the top end of the mounting base, an anti-loosening structure is arranged on the guide structure, a dewatering structure is mounted on the mounting base, a fixing structure is arranged at one end of the dewatering structure, a replacement structure is further arranged on the dewatering structure, a lifting structure is mounted at the bottom end of the mounting base, and a self-locking structure is arranged on the lifting structure. According to the guide device, the guide structure is used in cooperation with the anti-loosening structure, automatic tightness adjustment can be conducted on copper foils in the conveying process, the situation that the copper foils are too loose in the conveying process is avoided, the conveying guiding effect of the copper foils is guaranteed, the water on the copper foils can be fully absorbed and cleaned by installing the dewatering structure on the mounting base, and therefore the situation that small water drops attached to the copper foils enter the drying process along with the copper foils to form water spots can be avoided.

The invention relates to the technical field of forest firefighting equipment and discloses a blockage preventing type high-pressure water mist fire extinguishing device. The blockage preventing typehigh-pressure water mist fire extinguishing device comprises a bottom plate, wherein connecting blocks are fixedly mounted at both sides of the bottom of the bottom plate, the two connecting blocks are symmetrical along the axis of the bottom plate, the two connecting blocks are both in transmission connection with support rods through first transmission shafts, limiting rings are fixedly arrangedat the bottoms of the two support rods in a sleeving manner, small connecting blocks are fixedly mounted on both limiting rings, and the middles of the two small connecting blocks are both in transmission connection with transmission rods through second transmission shafts. According to the blockage preventing type high-pressure water mist fire extinguishing device, through the cooperation of a bottom disc, a support table and a rotating table, a rotating plate can rotate, a high-pressure spray pipe is driven to rotate, and the high-pressure spray pipe can be rotated according to different directions; through the cooperation of a rotating rod and a small rotating block, the angle regulation of the high-pressure spray pipe is carried out; and a level principle is utilized, so that a forcesaving effect is realized.

The invention relates to a feed caster, in particular to a fish pond feed casting device and aims to solve the technical problems and provide a fish pond feed casting device which can achieve long-time casting and is convenient for adjustment of a casting distance and a casting angle. The technical scheme of the invention is as follows: the fish pond feed casting device comprises a conical column and the like; a swing rod is rotatably connected to the top of the conical column, a spring is connected between the upper portion of the right side of the conical column and the lower portion of the right side of the swing rod, a groove is formed in the swing rod, a moving rod is slidably arranged in the groove, a plurality of first threaded holes are uniformly formed in the moving rod, and a dismounting mechanism is mounted on the upper portion of the swing rod. The fish pond feed casting device achieves the effects of long-time casting and convenient adjustment of the casting distance and the casting angle. By arranging the dismounting mechanism, the casting position of a U-shaped frame can be changed, and the effect of casting feed to fish groups far and near is achieved; the holding rod swings along the track of the arc-shaped groove, so that a user can better control the casting track of the feed, and the labor-saving effect is achieved.

The invention provides a labor-saving heavy duty punch, which comprises a base, a control piece, a first pressing piece, and two punching devices, wherein two ends of the base are respectively provided with a pivot part, and a working table is arranged between two pivot parts; the control piece is pivoted at one end of the base; the other end of the control piece opposite to the base is provided with a control part for a user to press; the control piece is provided with a first chute relative to the base, and is provided with a pressing part adjacent to the base; the first pressing piece is pivoted at one end of the shell opposite to the control piece; one end of the first pressing piece opposite to the base is arranged in the first chute in a sliding way; the first pressing piece and thecontrol piece generate pivotal swing toward opposite directions; a position where the first pressing piece is supported against the first chute is provided with a first sliding pivot for changing a force application arm; the first pressing piece is provided with a pressing part adjacent to the base; and the two punching devices are arranged on the working table, and are respectively pressed by thecontrol piece and the pressing part of the first pressing piece for punching.

The invention discloses grooving equipment for dining table top processing. The grooving equipment comprises a grooving equipment body. A base is fixedly connected with the bottom of the grooving equipment body. A machine tool body is fixedly connected with the top of the grooving equipment body. An equipment groove is formed in the center of the top of the machine tool body. Connecting rods are fixedly connected with the front side and the rear side of the machine tool body. Through coordinate application of a sliding rod, a sliding block, a shell, a bearing, a partition plate, a threaded rod, a threaded pipe, a fixing rod and a scale plate, the problems that when existing grooving equipment is used, dining table tops are often pushed manually to move on the surface of a machine tool andare liable to be deviated in the pushing process, consequently, the grooving effect is poor, and the grooving precision is low are solved, the grooving equipment for dining table top processing has the advantages of being good in table top fixing effect and high in grooving precision, and is convenient to operate, the effect of saving time and effort is achieved, and the practicability of the grooving equipment for dining table top processing is improved.

The invention provides a transport trolley for transporting corpses of small animals after experiments. The transport trolley comprises a base frame, an upper-layer lifting truss and a clamping device, a driving motor with a lifting mechanism is arranged in the middle of the base frame, a vehicle power supply is arranged at the right part of the base frame, and a vehicle control module and a signal transmission device arranged at the bottom layer of the base frame; according to the upper-layer lifting truss, lifting is achieved by the driving motor in the middle of the base frame through linear transmission of movable and static pulleys, an image transmission module of a vehicle is arranged in the middle of the upper-layer lifting truss, and the image transmission module can rotate by 360degrees through a steering engine at the bottom of the image transmission module to obtain image signals around a model vehicle; and a storage bin is arranged on the top of the lifting mechanism, anda grabbing mechanism is arranged on the upper portion of the storage bin and achieves pushing stretching, clamping and rotary loading and unloading functions through a pushing air cylinder, a clampingair cylinder and a rotary motor. The scheme has the characteristic of modular design, is clear in hierarchy, has good adaptive capacity to the environment, and can reduce the maintenance cost.

The invention belongs to the technical field of hoisting machines, in particular to a movable small hoisting machine used in municipal engineering. The movable small hoisting machine comprises a firstwinding wheel, a heavy base, a horizontal bracket, a fixed pulley, a second winding wheel, a rocker and the like. A swing plate does reciprocating swing to enable an input gear to reciprocally rotate, the input gear acts as a power source of a one-way transmission mechanism, and therefore an output gear can always output power in the single rotation direction; and after the input gear no longer inputs power, the one-way transmission mechanism conducts automatic locking, and safety of the small hoisting machine during lifting of heavy objects is ensured. In the process that the heavy objects are placed down, when the lifting height of the heavy objects needs to be readjusted, resetting action of an unlocking mechanism enables the one-way transmission mechanism to switch from the unlockingstate to the self-locking state again, a friction wheel and a curved brake pad are still in friction brake, and damage caused by rapid falling of the heavy objects is prevented; and after the one-waytransmission mechanism is switched back to the self-locking state, the one-way transmission mechanism starts to work again after power is input into the input gear again.

The invention discloses an electronic power-assisted steering system suitable for a mechanical steering forklift. The electronic power-assisted steering system comprises a torque sensor, a direct-current speed reducing motor, a motor controller and a transmission gear. The torque sensor is in rigid connection with a steering tiller and a steering shaft. The torque sensor and the direct-current speed reducing motor are electrically connected with the motor controller. The motor controller the direct-current speed reducing motor to start for power-assisted steering according to a steering signal captured through the torque sensor, and a driving wheel of the direct-current speed reducing motor is connected with the transmission gear on the steering shaft for transmission. By the adoption of the electronic power-assisted steering system, steering labor can be saved by 50% to the maximum degree, the hysteresis quality is avoided, the whole structure is compact, a motor model is smaller, and cost is low.

The invention provides a labor-saving stapler, which belongs to the technical field of office appliances, and solves the problem that the operation of the existing stapler is laboursome. The stapler comprises a base, a pressing cover and a staple box, wherein the pressing cover can be pressed downwards under a pressure, and the staple box is arranged between the base and the pressing cover and used for placing staples; the tail ends of the pressing cover and the staple box are respectively hinged with the tail end of the base; in addition, the stapler also comprises an auxiliary upper cover, one end of the auxiliary upper cover is hinged with the middle part of the base, the other end of the auxiliary upper cover is a stressed end and arranged above the pressing cover, and a part above the pressing cover, of the auxiliary upper cover is provided with a force application bar; and when a downward applied force is exerted on the stressed end of the auxiliary upper cover, the force application bar can exert a downward applied force on the upper surface of the pressing cover, and in the process of pressing the auxiliary upper cover downwards, the force application bar can move forwardsalong the pressing cover. Through setting the auxiliary upper cover, the labor-saving stapler can achieve the effect of labor saving by using the lever principle, and the further downwards the auxiliary upper cover is pressed, the more labor force is saved; and meanwhile, the labor-saving stapler is simple in structure and low in cost, and can achieve a significant labor-saving effect.

The invention discloses a lever-type easily-opened bottle cap which comprises a bottle cap body and an opening strip, wherein a clamping groove is arranged at the top of the bottle cap body, and two symmetrical installation holes are arranged on two lateral walls of the clamping groove and deviate from the circle center of the bottle cap body for a certain distance. One end of the opening strip is arc-shaped, a rotating shaft is fixed at the other end of the opening strip, and the opening strip is bound in the clamping groove through matching of the rotating shaft and the installation holes. The diameter of the rotating shaft is not larger than that of the installation holes, and the length of the rotating shaft is not larger than the sum of the width of the clamping groove and the depths of the two installation holes. When the rotating shaft is matched with the installation holes, a certain gap is reserved between the outer wall of the rotating shaft and the inner walls of the installation holes. By aid of the mode, the lever-type easily-opened bottle cap can have a strength-saving effect by adopting the lever principle, and the vulnerable groups including the old and children can successfully open the bottle cap conveniently.

The invention belongs to the technical field of clamps. A CNC (computer numerical control) machine tool clamp comprises a bottom plate, a first sliding groove is formed in the top of the bottom plate, two symmetrically distributed first sliding blocks are connected to the interior of the first sliding groove in a sliding mode, a screw is rotationally connected between the inner walls of the two sides of the first sliding groove through a bearing, the screw is in threaded connection with the first sliding groove, a mounting plate is fixed to the tops of the first sliding blocks through bolts, a positioning groove is formed in the inner side of the mounting plate, the section of the positioning groove is arranged to be a right trapezoid, a second sliding groove is formed in the inner wall of the bottom of the positioning groove, a second sliding block is connected to the interior of the second sliding groove in a sliding mode, a fixing block is fixed to the top of the second sliding block through a bolt, a clamping plate is hinged to the inner side of the fixing block, a transmission mechanism and a return mechanism are arranged on the mounting plate, and a front pressing mechanism and a rear pressing mechanism are arranged on the bottom plate. According to the CNC machine tool clamp, the screw is rotated to drive the mounting plate and the clamping plate to synchronously move; and when the clamping plate gradually makes contact with a plate, the clamping plate can rotate to gradually form an angle parallel to the bevel edge of the plate till the plate is attached and clamped.

The invention discloses a rebar prying hook which comprises a hook body and a hook rod. The hook body is arranged at one end of the hook rod and comprises two hooks which are arranged on the hook rod to form an r-shaped structure. By using the rebar prying hook, a rebar and a formwork can be pulled apart for enough distance to enable a rebar binding machine to run smoothly, so that original performance of the rebar binding machine is brought into full play and working efficiency and construction quality are improved greatly. In addition, the two hooks are arranged, so that a user can flexibly use one of the hooks according to habits and environments and can use the other one as a fulcrum to realize labor saving effect. The rebar prying hook has the advantages of simple structure, easiness in use, light weight and convenience.

The invention belongs to the technical field of optical fibre connection, and relates to an FC optical fibre splice tightening tool. The tightening tool at least comprises a motor, a motor handle anda gear handle; a first extension section is arranged at the tail end of the motor handle; a second extension section is arranged at the tail end of the gear handle; the first extension section and thesecond extension section are crossed and hinged through a rotating shaft; a cylindrical groove is arranged towards one side on the tail end of the first extension section; the motor is fixed in the cylindrical groove; furthermore, the rotating shaft of the motor extends out of the cylindrical groove; a first gear is arranged on the rotating shaft of the motor; a first cylinder is arranged towardsone side on the tail end of the second extension section; a second gear is installed on the top of the first cylinder; a third extension section is arranged at the tail end of the second extension section; a second cylinder is arranged towards one side on the tail end of the third extension section; a third gear is installed on the top of the second cylinder; and an FC optical fibre splice is positioned among the various gears, and meshed with the various gears. The FC optical fibre splice tightening tool in the invention is driven by the motor; the manpower can be reduced; and furthermore, interference on the rest of optical fibres can be reduced.

The invention relates to a cutting ruler, in particular to a cutting ruler for assisting tailoring and aims at achieving the technical effect of providing the cutting ruler for assisting tailoring with diversified assisting functions. The cutting ruler for assisting tailoring comprises a scale plate, a connecting rod, a pressing handle, an air bag, a first spring, a circular plate, a first outer scale, an inner scale, a sliding block, sliding rails, a blade and a movable plate; the circular plate is arranged on the right side of the scale plate, the air bag is arranged on the top of the circular plate, the first spring is arranged on the top of the circular plate, the pressing handle is arranged at the upper end of the first spring and located in the air bag, the connecting rod is connected to the left side of the bottom of the pressing handle in a hinged mode, the sliding rails are arranged on the front side and the rear side of the top of the scale plate respectively, and the sliding block is connected between the sliding rails. By the adoption of the first outer scale and a second outer scale, the length of the front side and the length of the rear side of cloth can be measured at the same time, size measuring time is saved, the scale plate does not need to be turned over, and the effort saving effect is achieved.

The invention discloses a sand screening box for municipal bridge construction. The sand screening box comprises a supporting main frame, walking wheels, a push rod, a sand screening box body, a sandinlet hopper, a top cover, a fine sand discharging opening, a cleaning door and an efficient sand screening device. The efficient sand screening device is arranged, after a hand wheel rotates, transmission is conducted through a labor-saving transmission mechanism, then a circulating pushing mechanism drives a movable sand screening mechanism to conduct back-and-forth sand screening work, the defects of electric drive sand screening in the prior art are overcome, the sand screening effect can be achieved through manpower. During sand screening, a labor-saving transmission mode is adopted, so that manpower output can be saved, the sand screening efficiency can be high, and the construction efficiency is greatly improved.

The invention relates to quick vise grip pliers which comprise a fixed handle and a movable handle. A movable plier head is hinged to the end of the movable handle, and the end of the fixed handle isconnected with a fixed plier head. The movable plier head is hinged to the fixed handle and connected with an elastic part, and a stay pin is connected between the movable handle and the fixed handle.The quick vise grip pliers further comprise a control handle hinged to the movable handle and an unlocking button. After the unlocking button is unlocked, the control handle can rotate relative to the movable handle, and a two-linked lever structure is formed by the control handle and the movable handle. At this moment, the movable handle can be made to expand relative to the fixed handle throughsmall force, and the effect of saving labor is achieved.