51results about How to "Guaranteed Squeeze" patented technology

The invention discloses a large-size additive-subtractive-integrated FDM printing head. According to the printing head, by arranging a cutting device and a hot roller device on the rear portion of theprinting head, if the defect that the two sides of a printed workpiece exceed the size of a model exists, the excessive parts are cut by the cutting device following behind; hot rollers are arrangedbehind the cutting device, a step is bridged through the hot rollers, thus, the concave part of the step is remedied by the protrusion part of the step, and the surface quality is improved; the layer-to-layer binding force is determined by the binding area of the concave part, thus, the layer-to-layer binding area is increased through the method, the layer-to-layer binding force is improved, and the mechanical property of the whole printed workpiece is improved; in the whole cutting process, organic dust is not generated, the machining environment is good, compared with existing mechanical subtractive manufacturing, the surface gloss after heat working and the surface consistency after 3D printing forming are good, and no obvious machining trace exits. A subtractive device is small in size, other machining equipment does not need to be arranged additionally, the occupied area is small, and the cost is low.

The invention provides multi-disc concentration equipment for a papermaking system. The multi-disc concentration equipment comprises a base; a cylinder is fixedly mounted at the top of the base, and a mounting plate is fixedly mounted on the left side of the base; a feeding hole is fixedly formed in the left side of the base, and the feeding hole is positioned above the mounting plate; a flow guide device is mounted at the top of the mounting plate, and the right side of the flow guide device is located in a concentration device; a collecting device is installed on the left side of the top of the base, and a receiving device is installed on the right side of the top of the base; and a material baffling device is installed on the right side of the cylinder, and an elastic piece is arranged between the material baffling device and the base. When a motor works, a connecting shaft drives a first belt wheel to rotate, so that a gear drives a gear ring to rotate, a filtering cover slowly rotates, meanwhile, filtered water washes filtering holes in the bottom, self-cleaning of the filtering holes is achieved, and the filtering holes are of a conical structure, so that fine paper pulp blocked in the filtering holes can flow out conveniently, and the filtering holes are prevented from being blocked.

The invention provides a downward-turning type passenger car safety escape window. After the car window is unlocked, a car window body is ejected out through an ejection mechanism, and then the car window body is pushed downwards and opened in a pneumatic driving mode. Gas required for pneumatic driving is from an internal air source and an air storage tank of a passenger car, under the emergencycondition, an initial driving air pressure is provided by the internal air source of the passenger car, the insufficient part is supplied by the air storage tank, and enough driving force can be provided for opening the safety escape window through the pneumatic driving mode, so that all the safety escape windows can be opened under the conditions of the damaged window body, foreign object extrusion and the like. In addition, when the safety escape window is opened, a mode that the safety escape window is opened in the outward direction and then moves downwards is adopted, an opened safety escape window structure can be taken as an armrest, support is provided for passengers for escape, the armrest can assist the passengers in the passenger car with escaping, and secondary injury in the escape process is effectively avoided; and compared with an existing outward-turning mode, the window opening space is larger.

The invention provides an MPO multifilament drawing auxiliary device with ultrahigh squareness. The device is arranged on the end surface of a drawing furnace and comprises: an outer clamp; an inner clamp, wherein the size of the inner clamp is smaller than that of the outer clamp, and the outer clamp and the inner clamp are installed diagonally, so that the outer clamp at least partially clamps the inner clamp, and a square enclosure is formed between the outer clamp and the inner clamp; a plurality of sliding blocks arranged in the square enclosure, wherein every two of the sliding blocks are adjacent to form a square hole located in the center; and through L-shaped grooves arranged on each edge of the outer clamp and the inner clamp and pushing mechanisms arranged in the L-shaped grooves, wherein the pushing mechanism can be switched between a locking state and a releasing state in the L-shaped groove, in the releasing state, a pushing rod is acted by a clamping spring and located in one side of a sliding groove in the direction perpendicular to the side face of the sliding block, contacts with the corresponding sliding block and is pressed, and in the locking state, the pushingrod is operated to overcome the elastic force of the clamping spring, and the pushing rod and the sliding block are clamped on the other side of the L-shaped groove, so that the overall squareness isguaranteed.

The invention discloses a petroleum pipeline supporting seat which comprises a bottom plate, a supporting arc plate is fixedly connected to the top of the bottom plate through a supporting rod, and correcting devices are symmetrically installed at the top of the supporting arc plate; an anti-sinking groove is formed in the bottom plate, the two ends of the anti-sinking groove penetrate through the bottom plate, and triggering grooves are evenly formed in the bottom of the bottom plate; and the triggering grooves communicate with the anti-sinking groove, and an anti-sinking plate is slidably connected to the bottom of the inner side of the anti-sinking groove. The invention relates to the technical field of petroleum equipment. The petroleum pipeline supporting seat device achieves the purpose of improving the stability in loose soil areas such as deserts, the petroleum pipeline supporting seat is prevented from sinking in the loose soil areas, the angle adjusting capacity is achieved, the angle can be corrected when the angle of the supporting seat deviates, and the situation that rolling over of a petroleum pipeline is accelerated due to the gravity of the petroleum pipeline is avoided; and the intelligent degree is high, and the supporting area of the supporting seat can be increased when the supporting seat sinks.

The invention relates to a pressing tool for pressing a fitting (4) for producing a pipe connection, which has: two pressing jaws (6, 8) facing one another, each having a pressing section (10 , 12) and lever sections (14, 16); for the fixed element (18) that squeezes pincers (6, 8) swingably connected, wherein the squeeze section (10, 12) constitutes the accommodation area (24 ), and wherein the pushing of the lever sections (14, 16) away from each other causes the receiving area (24) to close. The technical problem of extruding fittings for establishing pipe connections in a simple and cost-effective manner is achieved by providing a drive mandrel (26), a mandrel nut (28) and at least two drive levers (30, 32), each Each drive lever (30, 32) is connected swingably with the lever section (14, 16) of the squeeze pliers (6, 8) at one end, and each drive lever (30, 32) is at the other end It is swingably connected with the spindle nut (28). The invention also relates to a method for extruding a fitting for establishing a pipe connection.

The invention relates to a pressing tool for pressing fittings (4) for producing pipe connection. The pressing tool has two opposing pressing jaws (6, 8) which each have a pressing portion (10, 12) and a lever portion (14, 16); a holding element (18) used for pivotably connecting the pressing jaws (6, 8), wherein the pressing portions (10, 12) form a receiving region (24) and the receiving region(24) is closed by the forcing apart of the lever portions (14, 16). The technical problem of pressing fittings for producing pipe connection in a simple and cost-effective manner is solved in that a drive spindle (26), a spindle nut (28) and at least two drive levers (30, 32) are provided, each drive lever (30, 32) is pivotably connected at one end to the lever portion (14, 16) of a pressing jaw (6, 8), and each drive lever (30, 32) is connected pivotably to the spindle nut (28) at another end. The invention also relates to a method for pressing fittings for producing the pipe connection.

This application discloses a waste rubber sorting device in the field of waste sorting. The sorting mechanism includes a sorting box, and the top of the sorting box is provided with a second material inlet, a first material outlet and a second material inlet. Connected, there are rollers and arc-shaped plates in the sorting machine. The rollers and arc-shaped plates are located below the second feeding port. There is a gap between the rollers and the arc-shaped plates. One end is equipped with a second motor, the drum is connected to the second motor in rotation, the arc plate is fixedly connected to the sorting box, the side of the arc plate close to the drum is provided with a number of saw teeth, and the bottom of the sorting box is provided with a first discharge chute. A number of sorting tubes are arranged vertically at intervals in the first discharge chute, an opening is provided at the bottom of the first discharge chute, and a second discharge chute is also provided below the first discharge chute, and the second discharge chute is located at the opening directly below the . By adopting the application, the manual labor intensity can be reduced, and the work efficiency can be greatly improved.

The invention relates to a hydraulic-driven type passenger car safety escape window. The hydraulic-driven type passenger car safety escape window is used for escape of passengers in emergency situations, and comprises a safety window shell, an action mechanism, a driving mechanism and an oil supply mechanism; the safety window shell is used for being separated in an emergency state so as to obtaina passenger safety escape channel; the action mechanism is used for separating the safety window shell, and providing the support for the safety window shell when the safety window shell is separated; the driving mechanism is used for providing continuous oil pressure, driving a hydraulic main cylinder to move in a reciprocating mode, and providing the safety window shell separation power; and the oil supply mechanism is used for storing the pipeline hydraulic oil and allowing the pipeline hydraulic oil to pass through so as to provide the initial power for separation of the safety window shell. Compared with an escape window in the prior art, the hydraulic-driven type passenger car safety escape window has the advantages that the degree of easiness in opening of a passenger car safety escape window in the emergency state is improved, meanwhile, the opening speed is increased, and then the escape possibility and the escape efficiency of passengers in a passenger car when the emergencysituation occurs are improved.

The invention discloses a precise positioning clamp holder for batch part machining in the technical field of clamp holders. The precise positioning clamp holder comprises a tool body, the tool body is in a groove shape, positioning columns are evenly arranged on the front side and the rear side of the bottom end face of an inner cavity of the tool body, a machined product is arranged between every two adjacent positioning columns, limiting devices are correspondingly arranged between the machined products, and the front end faces and the rear end faces of the limiting devices are attached to the opposite faces of the machined products. The device structure is simple, operation is convenient, the precision of the machined products is effectively improved, the machining error is reduced, and the machining efficiency is improved.

The invention discloses a rock-soil layer anti-regression bolt for mining, which relates to the technical field of mining engineering and includes an anchor head, a rod body and a bolt joint. The inner wall of the hollow tube is movably connected with rotating gears, the bottom of the rotating shaft is rotatably connected with the top of the arc tooth block, and the outer wall of the hollow tube is uniformly provided with several hollow pointed ends. The present invention uses a hollow tip and a hollow tube, wherein when cement is injected into the anchor rod, the push block squeezes the hose, and the hollow tube is ejected by the pressure of the cement on the push block, and the outer wall of the hollow tube is provided with a hollow tip. The tip is conical, and the hollow tip is inserted into the rock and soil layer. The cement will flow into the hollow tip along the hollow tube to better bond and fix the anchor rod and the rock and soil layer. When the cement flows into the inside of the front drill bit, it will be squeezed The pressure plate and the hook cover move up along the slideway to push out the drill shell, and the hook tube is barb-shaped to prevent the safety problems of the mining workers or the rock and soil collapse caused by the retreat of the bolt.

The invention discloses a valve body of a polyethylene ball valve, and relates to the technical field of polyethylene ball valves. The valve body of the polyethylene ball valve at least comprises a valve seat, a valve element arranged in the valve seat and a valve rod used for driving the valve element, a medium channel is arranged in the valve seat, the valve element is arranged in the medium channel of the valve seat, and a leak checking sealing cover is further included; a sliding sleeve is embedded into one end of the interior of the medium channel, the sliding sleeve and the medium channel are arranged coaxially, the outer wall of the sliding sleeve is fixed to the inner wall of the medium channel in a sealing mode, an internal thread segment and a smooth segment are arranged in the sliding sleeve, and the internal thread segment is located on an opening side of the end of the medium channel; the leak checking sealing cover is sequentially divided into a sealing segment, an external thread segment and a limiting segment from front to back, and the sealing segment can be in sliding sealing fit with the smooth segment in the sliding sleeve; the external thread segment can be screwed and fixed with the internal thread segment in the sliding sleeve; and a gas conveying channel is arranged on the leak checking sealing cover in a penetrating through the front end surface and therear end surface mode. According to the valve body of the polyethylene ball valve, when the valve element shifts, leakage possibility can be further reduced, and gas tightness teat can be carried outconveniently.