70results about How to "Change inclination" patented technology

The invention relates to a device and a method for large-size visual physical simulation of fingering of an acid liquid in an acid fracturing crack in an oilfield chemistry and acid fracturing laboratory and a research laboratory. The device and the method can simulate flowing and reaction conditions of an acid liquid in an acid fracturing crack, can be used for observation of fingering of an acid liquid, and can determine associated parameters. The device is characterized in that a high-pressure constant-flow pump of a liquid pumping unit is connected to a liquid storage tank; a liquid outlet of the high-pressure constant-flow pump is connected to middle containers; the middle containers are connected to a six-way valve; the six-way valve is connected to a liquid inlet of a crack simulation unit; a stainless steel front frame is connected to a rear cover by fastening bolts; exhaust holes and drainage holes are arranged respectively at an upper part and a low part of the stainless steel front frame; liquid inlet holes and liquid outlet holes are arranged respectively at a left end and a right end of the stainless steel front frame; an observation window is arranged in the center of the stainless steel front frame; a rock plate is arranged between the stainless steel front frame and the rear cover; an electric heating panel and a heating probe are embedded in an outer side of the rear cover; a temperature sensor is arranged in the center of the rear cover; the liquid inlet holes and the liquid outlet holes of the stainless steel front frame are provided with a differential pressure transducer; and an image gatherer is installed right in front of the crack simulation unit. The device and the method improve a degree of mechanization and automation. A simulation experiment carried out by the device satisfies storage layer real-environment requirements, and is safe and fast.

The invention relates to a concrete layer compacting and polishing and squeegee machine, which includes power gearing system, four groups of squeegee components, square frame with seat and mobile linkage mechanism. The squeegee component includes four squeegee blades, the four groups of squeegee components are fixed on the four corners of the square frame through vertical gearing spindle, the four vertical gearing spindles rotates the two adjoined spindles reversely through the power gearing system, the two spindles on the cross rotate with the same direction; the mobile linkage mechanism is made up of lengthwise and transverse spindles and crank arms, cranks. The mobile linkage mechanism drives the subjacent part of the vertical gearing shaft to shift along the radial direction through manual or foot pedaling operations, the resistance is increased when the squeegee blade is transferred to another side, the resistance of another side is decreased.

The invention relates to a pile gripper for offshore piling. The pile gripper for offshore piling is composed of a pile gripper mechanism system, a hydraulic system and an electrical control system. A large base is connected with a sliding base through a sliding rail. A cross beam is installed in a sliding groove of the sliding base. A lateral thrust cylinder is installed on the portion, between a deck and the sliding base, of a mounting base. A main thrust cylinder is installed on the portion, between the sliding base and the cross beam, of the mounting base. A hoop is installed at the front end of the cross beam. The left side and the right side of the front end of a hoop base are connected with a left hoop body and a right hoop body separately. The left hoop body and the right hoop body are connected with the two sides of the cross beam through hoop opening and closing cylinders correspondingly. The hoop is provided with a pile gripping and clamping mechanism. Two sets of locking mechanisms are installed at the front end of the left hoop body. The right hoop body is provided with pin holes corresponding to taper pins of the locking mechanisms. Each pile gripping cylinder is connected with a proportional valve and controlled to act by the proportional valve. A programmable logic controller (PLC) performs closed-loop control over the opening degree and direction of the proportional valves according to a feedback signal of a magnetostrictive displacement sensor, so that the pile gripping cylinders are controlled to perform pile jacking guidance on steel piles and keep guidance on the steel piles within a required range.

The invention discloses a device and method capable of simulating oil displacement efficiencies of oil layers with different dip angles in order to explore oil displacement efficiencies generated when different displacing agents are applied to heterogeneity stratums with dip angles. The device is composed of a constant-speed displacement pump, pressure gages, three intermediate containers, a variable-dip-angle core holder, an image analyzer, a measuring cylinder, pipelines and valves, wherein the pipelines and the valves are used for connecting all the parts. The three intermediate containers contain stratum water, crude oil and a displacing agent correspondingly. A tracer agent is added into the displacing agent. By adoption of the device, the dip angle of a core can be changed by changing the dip angle of the core holder, so that the influence of the different dip angles on the oil displacement efficiency is studied, and a relation formula of the liquid production capacity and the dip angle is regressed. By use of the device and method, the flowing law of stratum crude oil in the water flooding or gas flooding process of the stratum with the dip angle can be simulated, so that an appropriate displacing agent is selected preferably and conveniently.

This invention provides a vibration wave driving apparatus which makes it possible to reduce the localized abrasion of a contact member, and reduce the deterioration of performance due to long-term driving. This vibration wave driving apparatus has a contact member which is provided with fixed portions fixed to the lengthwise opposite end portions of the vibration expanding portion of the vibration member, and a connecting portion integrally connecting the two fixed portions together and having opposite ends fixed beam structure divided into a plurality.

The invention provides a visual test method and system for simulating rough single-cross fracture multiphase seepage, wherein the test method comprises the following steps: S10, collecting a rock masssample on site, carrying out the statistics of the roughness of a fracture surface, and determining fractal characteristic parameters; S20, outputting a three-dimensional rough fracture model grid file; S30, preparing transparent or opaque three-dimensional rough fracture model samples with different roughness; S40, assembling a test device according to a single-fracture or cross-fracture test object; S50, simulating a fluid displacement process under the action of pressure difference, and carrying out a rough fracture medium multiphase displacement test; S60, collecting test data; and S70, arranging and analyzing the multiphase seepage characteristics of the rough fractured medium. The displacement mechanism of multiphase fluid in the fractures with different roughness and opening degrees can be systematically studied, and certain guiding significance is achieved for study of the water seal mechanism of a rough fractured rock mass of an underground water seal oil depot.

The invention relates to the field of unmanned aerial vehicles, in particular to a novel pan-shot unmanned aerial vehicle, comprising a body of the unmanned aerial vehicle. An installation frame is installed in the body of the unmanned aerial vehicle, the outside end of the installation frame extends out of the body of the unmanned aerial vehicle, multiple pieces of videography equipment are uniformly installed at the ends, positioned at the outer sides of paddles installed on the body, of the installation frame at intervals, the installation frame comprises an inner-ring frame, a middle-ring frame and an outer-ring frame which are closed circular rings made of rigid materials, the inner-ring frame, the middle-ring frame and the outer-ring frame are concentrically arranged in a sleeving way at intervals, the body of the unmanned aerial vehicle is fixedly installed at the inner edge, along the end face level to the inner-ring frame, of the inner-ring frame, the ends of the two sides of the outer edge of the inner-ring frame along the diameter direction are rotationally installed on the inner edge of the middle-ring frame through inner cloud deck shafts, and the diameter positions, perpendicular to the extension directions of the inner cloud deck shafts, at the outer edge of the middle-ring frame are rotationally installed on the inner edge of the outer-ring frame through outer cloud deck shafts.

The invention discloses a variable-inclination carrier roller set which comprises an intermediate carrier roller and side carrier rollers located at both ends of the intermediate carrier roller, wherein the intermediate carrier roller and the inner side shaft ends of the side carrier rollers are supported on an intermediate support, the outer side shaft ends of the side carrier rollers are supported on side supports, and the intermediate support and the side supports are fixed on a pedestal; the side supports are fixed on the pedestal in a displacement adjustable way along the adhesive tape moving direction; and vertical adjusting supports are arranged on the side supports, the upper ends of the vertical adjusting supports are provided with slots for supporting the outer side shaft ends of the side carrier rollers, and the vertical adjusting supports are fixed on the side supports in a height adjustable way. Because the upward inclinations and the forward inclinations of the side carrier rollers can be adjusted, the variable-inclination carrier roller set can be used for replacing a groove type carrier roller set, a groove type anteverted carrier roller set and a groove-angle-adjustable carrier roller set according to different positions of a belt conveyer, has good usability and interchangeability and is convenient to users to maintain.

A medical image viewing device with height and angle adjustment, comprising a support plate, a height adjustment device is arranged on the underside of the support plate, and a box body is connected to the upper side of the support plate through a rotating hinge, and the inside of the box body is set There is an LED lamp, the right side of the LED lamp is provided with a light-transmitting plate, and the top and bottom of the box on the right side of the light-transmitting plate are symmetrically provided with card slots; the rear side of the box is fixed with a first hinge, and the rear side of the support plate is provided with There is a second hinge, the second hinge is fixedly connected with a threaded sleeve, the threaded sleeve is arranged obliquely, the threaded sleeve is internally threaded with a screw, and one end of the screw is rotatably connected with the first hinge. The invention has the functions of reasonable structural design, convenient use and the ability to simultaneously adjust the height and angle of the box body, and has certain popularization and application value.

The invention relates to the field of a proton exchange membrane fuel cell, in particular to a fuel cell stack assembly device and assembly method. The device mainly comprises a guide rail fixing seatplate (1), a positioning rod (3), a sliding seat plate (4), a primary press mechanism, a second press mechanism, a sliding block (6), a guide rail rack (9), a guide rail surface (13) and an electricstack end plate press block, wherein the guide rail fixing seat plate (1) is arranged at one end of the guide rail rack (9), the guide rail surface (13) is arranged on the guide rail fixing seat plate(1), the sliding seat plate (4) is connected with the secondary press mechanism, the positioning rod (3) is connected with the sliding seat plate (4), and the primary press mechanism and the second press mechanism are connected via the sliding block (6). With the adoption of the fuel cell stack assembly device, a battery can be prevented from being pressed and damaged due to non-uniform pressureor misoperation during the battery assembly process, meanwhile, the battery can be accurately pressurized, and the assembly pressure is ensured.

The invention discloses a peripheral wireless connection projection device, relates to the technical field of projection devices, and solves the problems that a projection device in the prior art doesnot have the functions of adjusting the angle and the inclination angle, so that the manual adjustment of the projection device is relatively labor-consuming, the working efficiency is not high, andthe operation is very troublesome. The peripheral wireless connection projection device comprises an inclination angle adjusting device and an angle adjusting device, wherein the inclination angle adjusting device is fixedly connected to one side of a support rod on a base; and the angle adjusting device is movably connected in a mounting groove in the base. A projector of the device is fixed at the top of a support plate, and when the angle and the inclination angle of the projector are adjusted, a person does not need to move the projector for adjustment, but adjusts the projector through the inclination angle adjusting device and the angle adjusting device, the operation is simple and convenient, and the working efficiency is improved.

The invention discloses an adjustable-inclination angle bench clamp, which comprises a base (12), a fixed jaw (4), a movable jaw (3), a screw mechanism and a tilting mechanism, wherein the fixed jaw (4) is hinged with the base (12); the left and right side end faces of the fixed jaw (4) are fixed with two guide pins (2) and a screw (8); the movable jaw (3) has three holes; the two guide pins (2) and the screw (8) are positioned in the through holes respectively; the front end of the screw (8) is linked with a nut (1); the tilting mechanism comprises a worm (9) and a sectorial worm gear (5); the worm gear (5) is fixedly connected with a fixed jaw (4); the base (12) is provided with a radial hole (10); the worm (9) is positioned in the radial hole (10) and can rotate; an arc opening is formed on the upper part of the base (12); and the worm gear (5) is in transmission connection with the worm (9) in the arc opening. The bench clamp improves workpiece processing accuracy and labor and production efficiency.

A data processing device having a large display device in front enables adjusting the tilt angle of the display device in both vertical and horizontal installations. A display device mounting unit (70) rendered at the front top part of the main unit (20) has a curved recessed portion (71) which when seen in section curves at an angle from the front to the inside of the main unit (20). A mounting member (50) having a curved surface (51) that is convex in section is attached so that the mounting member (50) can slide along the arc of the curved recessed portion (71). The mounting member (50) is also fastened to the top or bottom end of the back of the display device (30). Sliding the mounting member (50) along the arc of the display device mounting unit (70) when the display device is installed to the main unit (20) enables adjusting the tilt angle of the display device (30). Because the display device mounting unit (70) is at the front top of the main unit (20) in both vertical and horizontal orientations, the display device can be installed and adjusted whether the main unit (20) is placed vertically or horizontally.

The invention provides a mathematics teaching board with a dust collection function. The mathematics teaching board comprises a support plate, wherein a height adjusting device is arranged at the lower side of the support plate, the height adjusting device comprises a support post, the bottom end of the support post is fixedly connected with the upper side of a base, a groove with an upward opening is formed in the support post, a lower movable block is arranged in the groove, the section of the lower movable block is in the shape of a right trapezoid, the oblique plane of the lower movable block faces the upward direction, movable rods are fixedly connected to two sides of the lower movable block, a movable through hole is formed in the left side of the support post, the movable rod on the left side is positioned inside the movable through hole, and the movable rod on the right side is connected with a drive device. The mathematics teaching board has the beneficial effects that the drive device drives the lower movable block to move towards the right side, the lower movable block enables an upper movable block to move upwards through a rolling wheel and a rolling wheel bracket, and thus a fixing post drives the increase of the height of the support plate; when the drive device enables the lower movable block to move towards the left side, the fall of the upper movable block isrealized.

Optical microscopes are used to record images or take measurements for extended times of several hours. During such extended usage, the microscope moves slightly causing the object to shift or defocus (drift). This invention provides a highly stable optical microscope that prevents drift and makes it possible to record images or take measurements for several hours with accuracy in the order of nanometers. The highly stable optical microscope of this invention comprises the support structure 42 that accommodates and supports components comprising the optical imaging system, straight tube 28 that accommodates and supports components comprising the optical photometric system, and support structure 7 that accommodates and supports components comprising the illumination system. These support structures have a hollow pyramid or conical shape with a low center of gravity. The highly stable optical microscope of this invention features the objective lenses, imaging lenses, optical imaging and photometric systems that are mounted, forming a straight line, on the supporting structures that are symmetrical about the optical axis in both shape and mass.

A coil spring for use in a link-motion-type suspension includes a lower end turn portion, an upper end turn portion, and an effective portion of a cylindrical shape between the lower end turn portion and the upper end turn portion. Further, the coil spring includes a bowing control portion including a taper portion formed in at least one end turn portion of the lower end turn portion and the upper end turn portion. The taper portion has a shape whose thickness is reduced from the middle of the end turn portion toward a distal end of a wire along its length, and bowing of the effective portion is suppressed by absorbing a change in the inclination of a spring seat by the taper portion.

This invention provides a vibration wave driving apparatus which makes it possible to reduce the localized abrasion of a contact member, and reduce the deterioration of performance due to long-term driving. This vibration wave driving apparatus has a contact member which is provided with fixed portions fixed to the lengthwise opposite end portions of the vibration expanding portion of the vibration member, and a connecting portion integrally connecting the two fixed portions together and having opposite ends fixed beam structure divided into a plurality.

The invention provides an inclination angle-adjustable arc photovoltaic carport. The inclination angle-adjustable arc photovoltaic carport comprises a first steel structure support and a second steel structure support. The first steel structure support comprises a first arc column pile and a second arc column pile, the first arc column pile is rotatalbly connected with the second arc column pile through a plurality main steel beams; and the second steel structure support comprises a third arc column pile, the third arc column pile are hinged to the main steel beams, the main steel beams are fixedly connected through a first steel tie rod, the main steel beams are provided with a plurality of uniformly distributed purlins, and a photovoltaic panel is fixed to the upper plane formed by the purlins. According to the inclination angle-adjustable arc photovoltaic carport , rotation of the main steel beams can be achieved through sliding blocks on an arc steel structure, and thus an inclination angle can be adjusted quickly and conveniently; By arranging the arc structure, the overall attractive appearance is guaranteed; according to the different illumination, the inclination angle is automatically adjusted, thus, light energy is fully absorbed, and the conversion rate is increased.

The invention provides a wheel inclination-angle adjusting device and a vehicle. The wheel inclination-angle adjusting device comprises a control arm, a first bracket, a second bracket, a first eccentric bolt, a second eccentric bolt, a first nut and a second nut; the first bracket and the second bracket are fixedly connected to a vehicle frame of the vehicle, the shape of the control arm is of aU-shaped structure, the first end of the control arm is connected to the interior of the first bracket in a clamped mode, the second end of the control arm is connected to the interior of the second bracket in a clamped mode, and the third end of the control arm is movably connected with a wheel of the vehicle; the two ends of an opening of the U-shaped structure are the first end and the second end correspondingly, and an unopened end of the U-shaped structure is the third end; long circular holes are formed in the first end of the control arm and the first face and the second face, oppositeto each other, of the first bracket correspondingly; and long circular holes are formed in the second end of the control arm and the third face and the fourth face, opposite to each other, of the second bracket correspondingly. The wheel inclination-angle adjusting device can make the adjusting process of a wheel inclination angle be simpler.

The novel treadle mill includes base seat, treadle tape frame, elevating and folding mechanism between the base seat and the treadle tape frame and tracks on two side of the base seat. The elevating and folding mechanism includes a fixing support rod and a movable support rod, the fixing support rod has one end hinged to the base seat and the other end hinged together with one end of the movable support rod to a fixed shaft, and the other end of the movable support rod is connected to a link rod mounted with wheels fitted to the tracks. The treadle tape frame is connected to the fixed shaft, the fixed shaft is fixed to a hinge seat, and the screw hinged to the hinge seat is fitted to the screw sleeve hinged to the hinge seat of the link rod. The treadle mill is simple in structure, smooth and practical.

The invention discloses a pressure protection system for an oil cylinder of shark pincers, and belongs to the technical field of shark pincers. The pressure protection system comprises the oil cylinder, a power system, a three-position four-way electro-hydraulic reversing valve, a first hydraulic-control proportional reversing valve, a second hydraulic-control proportional reversing valve, a first overflow valve and a second overflow valve. A first port of the first hydraulic-control proportional reversing valve, a first port of the first overflow valve and a channel of the second hydraulic-control proportional reversing valve are communicated with a third port of the three-position four-way electro-hydraulic reversing valve, a first port of the second hydraulic-control proportional reversing valve, a first port of the second overflow valve and a channel of the first hydraulic-control proportional reversing valve are communicated with a fourth port of the three-position four-way electro-hydraulic reversing valve, other ports of the first hydraulic-control proportional reversing valve and a second port of the first overflow valve are connected with a rodless cavity of the oil cylinder, and other ports of the second hydraulic-control proportional reversing valve and a second port of the second overflow valve are connected with a rod cavity of the oil cylinder. The pressure protection system has the advantages that stress on the oil cylinder can be reduced when a working load of the shark pincers has large tonnage, so that low pressure of the shark pincers is guaranteed, and the shark pincers are assuredly reliable in work.

The invention relates to a display with folding supports. The display with the folding supports comprises a display body, a first connecting fulcrum bar, a second connecting fulcrum bar and a V-shaped base. A soft magnet is arranged in the center of the back surface of the display body, the first connecting fulcrum bar is hinged to the top of a second connecting support, the surfaces of the first connecting fulcrum bar contain iron, a movable damping rotary shaft is arranged at a tip of the V-shaped base, the bottom of the second connecting fulcrum bar is connected with the movable damping rotary shaft, a plurality of antislip grooves are formed in the surfaces of the V-shaped base in a reserved manner, concave hole grooves are formed in the bottom surface of the V-shaped base, and base adjusting rods are inserted in the concave hole grooves. The display has the advantages that the structure of the display is changed, and inclination angles of the display body can be changed by the aid of the first connecting fulcrum bar, the second connecting fulcrum bar and the movable damping rotary shaft; the base adjusting rods can be adjusted, so that the height of the display body can be changed; power can be provided for the display body by an electric socket.

The invention discloses a computer mainframe box capable of adjusting heat dissipation, and belongs to the technical field of computer heat dissipation. The novel computer mainframe box capable of adjusting heat dissipation can change the ventilation quantity of fans in a large range. The computer mainframe box comprises a mainframe box body, and the cooling fans are arranged in the mainframe boxbody. Each cooling fan comprises a first driving motor, wherein an output shaft of the first driving motor is sleeved with an adjusting ring, a plurality of blades are arranged on the outer edge of the adjusting ring in the circumferential direction of the adjusting ring, the end of each blade is connected with a connecting shaft, and the connecting shafts are arranged in the radial direction of the adjusting ring and penetrate through the adjusting ring. Each cooling fan further comprises inclination angle adjusting mechanisms used for driving the connecting shafts to rotate, and the inclination angle adjusting mechanisms are connected with the connecting shafts. The computer mainframe box has the advantages that the ventilation quantity of the cooling fans can be adjusted in a large range, the internal temperature of the mainframe box body can be better controlled, and a guarantee is provided for good operation of a computer.

The invention discloses a material platform of a wood drilling machine. The material platform comprises a platform body and a machine frame, as well as an angle adjusting part, wherein the upper and lower ends of the angle adjusting part are fixedly connected with the platform body and the machine frame, respectively; the angle adjusting part comprises an arc-shaped block of which the upper end is fixedly connected with the platform body, a compacting bolt, and an arc-shaped block seat of which the lower end is fixedly connected with the machine frame; the upper end of the arc-shaped block seat is provided with an arc-shaped groove; the lower end of the arc-shaped block is provided with an arc-shaped part of which the radian is accordant with the radian of the arc-shaped groove; the arc-shaped part is arranged in the arc-shaped groove; the compacting bolt is in threaded connection with the arc-shaped block seat; the arc-shaped block and the arc-shaped block seat are fixedly connected with each other by virtue of the pre-tightening force applied between the arc-shaped block and the arc-shaped block seat through the compacting bolt. The material platform is simple in structure, facilitates adjustment of the dip angle of the platform body, and is beneficial to the drilling of inclined side holes.

A data processing device having a large display device in front enables adjusting the tilt angle of the display device in both vertical and horizontal installations. A display device mounting unit (70) rendered at the front top part of the main unit (20) has a curved recessed portion (71) which when seen in section curves at an angle from the front to the inside of the main unit (20). A mounting member (50) having a curved surface (51) that is convex in section is attached so that the mounting member (50) can slide along the arc of the curved recessed portion (71). The mounting member (50) is also fastened to the top or bottom end of the back of the display device (30). Sliding the mounting member (50) along the arc of the display device mounting unit (70) when the display device is installed to the main unit (20) enables adjusting the tilt angle of the display device (30). Because the display device mounting unit (70) is at the front top of the main unit (20) in both vertical and horizontal orientations, the display device can be installed and adjusted whether the main unit (20) is placed vertically or horizontally.

The invention discloses a textile thread traction device and method. The textile thread traction device comprises a U-shaped frame, a traction power unit, a roll shaft distance adjusting unit, a roll shaft distance control unit, a distance adjusting unit, a transverse adjusting unit, a height adjusting unit, a corner adjusting unit and a rolling guide unit. Grooves are formed in the two ends of the U-shaped frame correspondingly, traction power units are installed in the grooves of the U-shaped frame, the roll shaft distance adjusting unit is further installed on the U-shaped frame, the roll shaft distance control unit is installed on the roll shaft distance adjusting unit, one side of the U-shaped frame is connected with the transverse adjusting unit through the distance adjusting unit, the height adjusting unit is mounted on the transverse adjusting unit, and the rolling guide unit is mounted on the height adjusting unit through the corner adjusting unit. The distance between roll shafts for traction can be adjusted according to the thickness of a textile thread, the application range is wide, the direction and angle of the textile thread can be guided, abrasion during guiding is avoided, and use is convenient.