220results about How to "No jamming" patented technology

The invention discloses an incremental electro-hydraulic digital flow control valve with double valve cores rotating oppositely. The control valve is characterized in that a valve body is square outside and circular inside, an oil inlet hole and an oil outlet hole are formed in the outer surface of the valve body and communicated with an annular oil inlet groove and an annular oil outlet groove in the circular-arc inner surface of the valve body respectively, an inner valve core and an outer valve core are both in a cylinder foot cup shape, the open end of the inner valve core is inserted in the open end of the outer valve core, the inner valve core and the outer valve core are installed inside the valve body together, and the inner valve core, the outer valve core and the valve body are kept coaxial; fan-shaped oil inlet holes and fan-shaped oil outlet holes are formed in the cylindrical surfaces of the inner valve core and the outer valve core, and respectively connected with the oil inlet hole and the oil outlet hole in the outer surface of the valve body through the annular oil inlet groove and the annular oil outlet groove in the inner surface of the valve body; the closed ends of the inner valve core and the outer valve core are provided with cylindrical shafts which penetrate through the left end cover and the right end cover of the valve body after passing through a bearing, and respectively connected with a stepping motor. Compared with an existing incremental sliding type digital flow valve, the digital valve disclosed by the invention has higher resolution ratio, dynamic response speed and flow control accuracy.

The invention relates to an anchor rod whose rod is rotational, which comprises a rotated rod inside the anchor hole; the end of rod is outside the anchor hole; the straight section is in the free section of anchor hole; the rotation section is at the anchor section. And it is characterized in that: at the rotation section, it has the support element which can deform according to the rotation of rod; said support element is combined with the slurry element poured into the anchor hole, to form the support to support the drawing force of anchor rod; and said support is at the inner side of rotation section, to be cylinder, column, ball, or U-shaped, or at the inner side of rotation section to expand the rotation section, as one flexible element, or the mesh element at the surface of rotation section, or the mesh muffle at the surface, or the annular or screw element coiled on the surface of rotation section. The invention has simple structure and easy construction, while the rod can be recycled, and it can be used as pressure anchor rod.

The invention discloses a ball valve, and particularly relates to a forced sealing ball valve. The forced sealing ball valve comprises a valve body, an auxiliary valve body, a ball body, a valve seat and an auxiliary valve body fluid pipeline. A stud-nut driving type forced sealing device is arranged on the outer circle of the auxiliary valve body fluid pipeline, wherein a worm wheel and a driving stud are connected through a flat key. When the driving stud rotates, an axial sliding key groove of a driven nut screwed with the driving stud is made to conduct axial linear motion along a guiding key on the auxiliary valve body fluid pipeline, so that the needed sealing specific pressure is produced between the valve seat and the ball body in a valve cavity through the pressure produced outside via the pressure transferring. Thus, low-torque opening and closing and forced sealing are achieved. Related motion processes of the stud-nut driving type forced sealing device and an electric actuator are achieved through an automatic control system in the opening and closing process and the sealing process. According to the structure of the forced sealing ball valve, the selected corresponding materials can be suitable for various severe fluid and environments.

Provided are double-track slip support structures for a large-span net rack assembly bed-jig platform. Two sides of a net-rack span are correspondingly equipped with the double-track slip support structures. Each double-track slip support structure comprises a lateral slip steel rail system and a vertical slip steel rail system and is characterized in that each lateral slip steel rail system comprises multiple concrete columns (1), lateral slip steel rail blocking beams (3) and a lateral slip steel rail (5); the vertical slip steel rail system comprises a bed-jig spherical-hinge support bracket (8) and a vertical slip steel rail (12), wherein the bed-jig spherical-hinge support bracket and the lateral slip steel rail (5) are correspondingly arranged; and a bed-jig spherical-hinge support (7) is accommodated in the upper center of the bed-jig spherical-hinge support bracket. Each double-track slip support structure comprises the lateral slip steel rail system and the vertical slip steelrail system. A device is simple in structure and convenient in manufacture. Each lateral slip steel rail system and each vertical slip steel rail system are stable in structures. Therefore, the net-rack bed-jig platform smoothly and stably slips so that the advantage of improving slip engineering efficiency is acquired.

The invention discloses a garbage feeder, which comprises a machine frame, a conveying device and a guiding tank, wherein the conveying device is arranged on the machine frame; and the guiding tank is fixed on the machine frame and positioned above and on the right side of the conveying device. The garbage feeder is characterized by also comprising a blending device and a feed level feedback device. The machine frame comprises supporting posts, a connecting cross beam and supporting wheel bearers, wherein 1 to 3 supporting wheel bearers are used. Each feeding plate of the conveying device hasa roller support, the number of the roller supports is the same as that of the supporting wheel bearers, and each roller support is rotationally connected with a corresponding supporting roller. The supporting roller of each corresponding feeding plate is contacted with a supporting wheel bearer in a rolling manner. The blending device comprises a main frame body and comb teeth. The comb teeth are arranged on the main frame body. The blending device is arranged in the middle of the left and right direction of the machine frame. The comb teeth are positioned above the conveying device. The feed level feedback device is transversely spun over the guiding tank from the front to the back and is positioned above the part, which is on the right side of the blending device, of the conveying device.

The invention relates to a lyophilized instant meat ball and a preparation method. The method is characterized by comprising the following steps: using meat, eggs, edible mushrooms, starch, water, shallot, ginger, salt and chicken extract as filling of the meat ball; and preparing the filling into the lyophilized cooked meat ball through filling preparing, ball making, steaming, cooling, sublimation drying in vacuum and other processes. The meat ball has high rehydration rate, short brewing time, good taste and easy digestion and absorption, can furthest maintain nutritional ingredients, shape and color and lustre when the meat ball is just cooked, and adopts vacuum or nitrogen-filled package technology to ensure that the product has convenient transportation, convenient portability and long shelf life, and can be eaten by brewing the meat ball by boiled water for a while.

The invention discloses a temporary plugging workover fluid for a low-pressure carbonate reservoir gas well and preparation and an application method of the temporary plugging workover fluid. The temporary plugging workover fluid is composed of two slugs, wherein one is a low-solid phase water-locking type temporary plugging fluid slug, and mainly plays roles of forming a temporary plugging layerat a blasthole, bearing pressure of an upper fluid column and balancing formation pressure difference; the other slug is a water-based anti-swelling inhibitor slug, and mainly plays a role of furtherreducing damage caused by a small amount of workover fluid entering the reservoir due to micro-leakage. The temporary plugging workover fluid provided by the invention has the characteristics of lessleakage, small reservoir damage, strong pressure bearing capacity and water-locking capacity, good universality, non-toxicity, harmlessness, convenient construction, easy flowback, high safety, environmental protection and the like, is mainly used for temporarily plugging and killing the well in the carbonate reservoir during workover, is particularly suitable for workover of the low-pressure carbonate reservoir gas well having tubular columns with packers, and can reduce the damage of the workover fluid to the formation.

The invention discloses an automatic press-fit recovery storage device of a pop-top can. The automatic press-fit recovery storage device comprises a feeding assembly, a pressing-fit bin, a driving assembly and a storage bin, wherein the driving assembly comprises a motor bin and a push rod, the two sides of the motor bin are fixedly connected with the storage bin, the top of the storage bin is connected with a base plate through a bolt, and the top of the base plate is fixedly connected with a second supporting base; and the second supporting seat is fixedly connected with the pressing-fit bin, a first notch is formed in the top of the pressing-fit bin, moreover, a second notch is formed in the bottom of the pressing-fit bin, the first notch is aligned with the feeding assembly, the push rod penetrates through the first supporting seat and the pressing-fit bin in sequence and then is fixedly connected with a pressing-fit block. According to the device, the structure is simple, the assembly is convenient, the feeding is stable, a rotary table is driven by a motor to rotate, so that the reciprocating motion of the push rod is realized; and the pop-top can can be automatically droppedafter being compressed to a proper size, the rotation speed of the motor is controlled, the speed and the acting force of the pressing-fit block can be changed to extrude the pop-top can, and the device can be widely applied to pop-top can press-fit recovery with different materials.

The invention discloses a solid-liquid separation method and device for multi-material anaerobic fermentation liquid containing kitchen wastes and belongs to the technical field of kitchen waste treatment. A first discharging hole of a filter press is connected with a feeding hole of an oil-water separation tank by virtue of a pipeline; an overflow port of the oil-water separation tank is connected to a first conditioner by virtue of a pipeline; a submersible sewage pump is arranged in the first conditioner; the discharging hole of the submersible sewage pump is connected with a feeding hole of a multi-disk screw thickener; a second discharging hole of the multi-disk screw thickener is connected to a second conditioner by virtue of a pipeline; the second conditioner is connected with a feeding hole of a plunger pump by virtue of a pipeline; a discharging hole of the plunger pump is connected with a feeding hole of a plate-and-frame filter press; a residue outlet collection bucket of the plate-and-frame filter press is connected with the feeding hole of a residue delivery screw; the discharging hole of the residue delivery screw is connected with a residue box. Aiming at the material characteristics, the problems generated during operation of the original anaerobic fermentation liquid solid-liquid separation equipment with participation of kitchen wastes are gradually solved, the operating stability is improved, the treatment effect is ensured, the operating cost is reduced, secondary pollution is reduced, and the solid residues obtained by solid-liquid separation meet the national standard.

The invention relates to a lower limit anti-collision device of an elevator of a stepped fan drum. Two top ends at the rear sides of an elevator chassis and an anti-collision detection plate are respectively provided with the same roller slot; a roller is arranged in the roller slot; a shearing fork rod consisting of two rods is respectively arranged at one side of the elevator chassis andthe anti-collision detection plate; the middle of the shearing fork rod is provided with a shearing fork shaft connecting the two rods; one end of the shearing fork rod is connected with a roller, while the other end is connected with a fixing plate at one end of the elevator chassis at the opposite angle or one end of the anti-collision detection plate; two sides below the elevator chassis are also respectively provided with a detection switch seat, and a detection switch is arranged on each detection switch seat; and the detection switches are linked with a baffle plate arranged on the shearing fork rod. The lower limit anti-collision device has the advantages that a mechanical structure cannot be clamped, the detection plate can completely cover the lower space of the elevator and completely detect lower foreign matters, and the safety of equipment and personnel is improved.

The invention relates to a descend control device. The descend control device comprises a descend control device body, wherein the descend control device body is formed by communicating a material feeding pipe and a material discharging pipe which are abreast placed, a cleaning material flexible door is arranged at the bottom end of the material feeding pipe, a slow flow opening is formed in the middle portion of the material feeding pipe, connecting flanges are all fixed on the bottom portion of the material discharging pipe and the top portion of the material feeding pipe, the connecting flanges are used for slow flow effect in the middle portion of an articulated chute, the connecting flanges are arranged at the top portion of the material feeding pipe, a slipstream opening is formed at the bottom portion of the material discharging pipe, the slipstream opening is used at a material discharging opening of the articulated chute, an observation flexible door is further arranged on the material feeding pipe, the observation flexible door can be favorable to adjusting and observing flow speed of the materials and further can timely clean an inner chamber, and floppy concretes are filled at a buffering portion between the cleaning material flexible door and the slow flow opening. On one hand, the descend control device can prevent free falling body of the concretes from producing isolation of frameworks and the materials, and on the other hand avoid severe damages of pipe walls and a belt conveyor below the pipe caused by a high fall.

The invention relates to an external air reservoir or tank linkage synchronous lifting table based on the principle of a gas spring. The external air reservoir or tank linkage synchronous lifting table includes a table top (1) and a base (4), and is characterized in that the table top is installed on the base through at least two lifting legs (3) made based on the principle of the air spring, each lifting leg is composed of a piston rod (77), a cylinder body (33) and a power air cylinder or tank (57), a rod cavity of one of the cylinder bodies (33) communicates with storage cavities of the power air cylinders or tanks (57) as the driving power while communicating with a rodless cavity of another one of the cylinder bodies (33), a rod cavity of the last cylinder body (33) communicates with a storage cavity of the last power air cylinder or tank (57) while communicating with a rodless cavity of the first cylinder body (33), high-pressure gas in power cavities 99 of the power air cylinders or tanks (57) provides power to lift the table top, and the high-pressure gas is compressed and stores energy when the table top descends. According to the external air reservoir or tank linkage synchronous lifting table, the structure is simple, the cost is low, manufacturing is convenient, and the synchronous lifting and arbitrary height locking properties are good.

The invention discloses a concrete vertical conveying pouring system which is applied to a vertical high fall concrete conveying scheme. The concrete vertical conveying pouring system comprises a belt conveyor, a box pipe and a concrete distributing machine. An output end of the horizontally arranged first belt conveyor is arranged above an inlet at the upper portion of the box pipe which is vertically arranged, an outlet at the lower portion of the box pipe is arranged above an input end of a second belt conveyor which is horizontally arranged, an output end of the second belt conveyor is connected with the concrete distributing machine, chutes are arranged at tow ends of the concrete distributing machine, and a descent control device is respectively arranged on the outlet at the lower portion of the box pipe and an outlet in the middle of the box pipe. In the vertical conveying process of the concrete with high fall and high slope, the concrete vertical conveying pouring system avoids aggregate separation caused by free falling of the concrete on one hand, and avoids severe damage caused by the belt conveyor below a pipe wall and a pipe caused by high fall on the other hand. Aggregate in the pipeline cannot freely fall off, and the aggregate can be in a fluid state, flowing in the pipeline equals to secondary blending, so that the concrete is evenly mixed.

The invention discloses a shaft end bevel gear forging mould which comprises an upper mould, a lower mould, a pressing plate, a mandrel, a base plate, a mould base and an ejector rod. An axial through hole in clearance fit with the ejector rod is formed in the middle of the base plate, the base plate is flatly arranged at the bottom of a cavity in the upward end face of the mould base, the lower mould is inserted into the cavity of the mould base and axially positioned by taking the base plate as a base, the pressing plate sleeved on the outer wall of the lower mould is connected with the mould base, the mandrel is axially inserted into a mould cavity of the lower mould from top to bottom until the base plate is axially limited, the ejector rod is an elongated rod relative to the mandrel and penetrates the through hole in the middle of the base plate, the ejector rod and the mandrel are connected into a whole, and the gravity center of the structure is low, so that the mandrel is conveniently reset after a workpiece is ejected. As the diameter of the ejector rod is much smaller than that of the mandrel, the hole for matching the ejector rod with the base plate is also small, the contact area of the mandrel and the base plate is enlarged, plastic deformation of the base plate is avoided in the forging process, and the forging quality of the workpiece is ensured.

The invention discloses an air compression buffering device. The key technical scheme of the invention is as follows: a reverse cut-off hollow core valve with 2-4 upper air inlets and an air intake pipe is arranged inside a central guide hole of a buffering piston; and a stop valve spring, a baffle ring and a baffle ring stop pin are arranged at the lower end of the reverse cut-off hollow core valve. The lateral side of a hole-type fixing head is provided with 2-4 lateral air inlets; and the hole-type fixing head is fixed together with the buffering piston and the hole-type fixing head is connected together with a valve shaft through a cross connector. An annular empty groove and 2-4 axial exhaust grooves are machined on the internal surface of the bottom surface of a buffering cylinder, and after sleeved on the buffering piston, the buffering cylinder is fixed on a main spring protecting tube through a mesoposition hexagon socket bolt. The air compression buffering device can be extensively applied to rotation gulp valves and static gulp valves.

A pull system for three-roller plate bender is composed of a bent object pulling out unit having a upper roller linked in leading screw and nut drive mode and driven by motor and speed reducer, a supporting unit consisting of motor, speed reducer, gear, rack bar, sliding body, and square guide, and a wedging unit comprising cylinder and iron wedge. Its advantages are smooth pulling out, uniform speed, and no jamming.