33results about How to "Accurate angle" patented technology

The utility model relates to a die mechanism for flanging and side shaping of an automobile stamping part, which comprises an upper die and a lower die and is used for processing the whole L-shaped automobile stamping part, the automobile stamping part comprises a flanging processing section and a non-processing section, and the flanging processing section is provided with a fin to be flanged; the lower die is provided with a station of a flanging machining section and a shaping mechanism which is arranged on the side of the station and used for completing flanging and side shaping of the automobile stamping part at a time. According to the flanging and side shaping die, the defect that flanging and side shaping are carried out in two procedures in the prior art is overcome, and flanging and side shaping are achieved in one step.

The utility model is applicable to the technical field of nut installation equipment, and provides a nut rivet pulling device and system.The nut rivet pulling device comprises a driving part and a gyroscope, the output end of the driving part is in transmission connection with a movement assembly, the driving part is used for driving the movement assembly to rotate, and the gyroscope is connected with the driving part and used for controlling the movement assembly to rotate. And the gyroscope is used for detecting the change of the inclination angle of the nut riveting device and outputting an electric signal. According to the nut rivet pulling device, the driving piece is arranged to drive the movement assembly to rotate, the movement assembly provides power, and the movement assembly is used for being connected with the nut and driving the nut to move so that the rivet pulling function of the nut rivet pulling device can be achieved; the gyroscope is used for detecting the dip angle change of the nut riveting device when the driving part drives the moving assembly to rotate and outputting an electric signal, so that the dip angle change is detected when the nut riveting device drives the nut to rotate, and the situation that the overall riveting accuracy is affected due to angle deviation when the nut is screwed into a material mounting position is avoided.

The invention discloses an indoor and outdoor autonomous switching unmanned intelligent agent with a redundant propulsion system and a method, and belongs to the technical field of unmanned aerial vehicles. The indoor and outdoor autonomous switching unmanned intelligent body with the redundant propulsion system comprises an unmanned intelligent body main body, two propulsion rotors are arranged in each auxiliary propeller shell, and a main rotor is arranged in a flight opening; and a high-precision hydraulic turntable is mounted at one end of the auxiliary propeller shell. The problems that an existing multi-rotor unmanned aerial vehicle is difficult to position in an indoor GPS denial environment and poor in maneuverability in a narrow space are solved, the propelling rotors can provide lift force for maintaining the height by calculating the thrust distribution scheme of the propelling rotors, yawing, pitching and rolling moments are synthesized through differential thrust, the flight control right is taken over, and the maneuverability of the multi-rotor unmanned aerial vehicle is improved. An intelligent unmanned platform which can safely, autonomously and continuously operate at an environment boundary and a system state boundary is created, and the intelligent unmanned platform can autonomously fly in indoor and outdoor complex environments and has a fault-tolerant capability.

The utility model discloses a quick tapping tool with a gradual change section chip removal combined structure, and relates to the technical field of tapping tools. The rapid tapping tool with the gradual change amount section chip removal combined structure comprises a limiting frame, a tapping mechanism is arranged above the limiting frame, a limiting assembly comprises a movable frame movably installed below the limiting frame, a connecting rod is movably installed below the movable frame, a limiting rod is movably installed at the bottom end of the connecting rod, and a tapping mechanism is arranged above the limiting frame. A transmission ring is movably installed below the limiting rod, a pressure bearing separates rotation of the screw tap from static monitoring of a pressure sensor, the screw tap can rotate freely, axial pressure can be effectively transmitted to the sensor, the situation that rotation interferes with pressure monitoring is avoided, meanwhile, the linear bearing limits the screw tap to move only in the axial direction, pressure abnormity caused by deviation is avoided, and the service life of the screw tap is prolonged. The grip is matched with the ratchet and the ratchet wheel, so that rotation action and pressure application are separated, the influence of manual force application fluctuation is structurally eradicated, and pressure stability and controllability are achieved through cooperation of multiple components.

The invention discloses a sensor support device and system for concrete filled steel tube ultrasonic detection. The sensor support device comprises a grip, a pressing plate and an adsorption mechanism. The lower end of the grip is connected with the pressing plate, and an ultrasonic detection sensor is installed in the center of the bottom face of the pressing plate. At least three groups of adsorption mechanisms are designed, and are uniformly arranged at intervals along the periphery of the ultrasonic detection sensor in the circumferential direction; each adsorption mechanism is provided with a magnet block used for being adsorbed to the outer wall of the steel pipe. The invention also discloses a concrete filled steel tube ultrasonic detection system. The device has the beneficial effects that the magnet block of the adsorption mechanism and the outer wall of the steel pipe can generate stable magnetic attraction acting force, the magnetic force can directly offset part of gravity load of the detection device, detection personnel only need to hold the grip to guide the direction, no extra supporting force is needed, and the device can be preliminarily attached to the surface of the steel pipe; the basic bearing burden of the hand is greatly reduced, and the problem that in the prior art, the labor intensity of workers is large is solved.

The utility model discloses a hanging mechanism capable of correcting multi-dimensional deviation and used for hoisting a high-temperature molten aluminum platform ladle. The hanging mechanism comprises an outer frame, a transverse adjusting frame, a transverse driving assembly, a longitudinal adjusting frame, a longitudinal driving assembly, an angle adjusting rotating frame, a rotating driving assembly, a bilateral hook, an opening and closing driving assembly and the like. According to the mechanism, in the process of transferring the high-temperature molten aluminum platform ladle, fault-tolerant adaptation and position correction can be carried out on the platform ladle with various position and angle deviations when the platform ladle is taken and placed; and the platform bag deviating from the accurate direction can be smoothly hung and hoisted, the platform bag is corrected to the correct center position and angle in the hoisting process, and the platform bag transferred in place is ensured to be placed at the correct position and angle when being put down.

The utility model discloses a smart projection picture automatic correction device based on cell -phone / tablet posture response relates to projection equipment technical field. This smart projection picture automatic correction device based on cell -phone / tablet posture response, including device shell, the device shell is the cuboid hollow structure and the front side is open state, the front side fixedly connected with the front cover of device shell, the top is equipped with the heat dissipation hole, the back fixedly connected with the light supplementing lamp, and the bottom side of device shell is provided with fixed base mechanism, and the back of device shell has projection lens. This smart projection picture automatic correction device based on cell -phone / tablet posture response, and the device shell is the cuboid hollow structure, and the front side is equipped with the front cover of dustproof, and the top heat dissipation hole radiates heat, and the back light supplementing lamp light supplementing keeps picture collection accurate. The bottom side fixed base is stable, and the back projection lens projects, and the inside mechanism adjusts the angle, and the circuit control mechanism coordinates the machine realization picture automatic correction.

This utility model discloses a welding positioning device for positioning a template to be welded. The angle of the projection of the welding end of the template along the Z direction onto a plane perpendicular to the Z direction is degrees. The device comprises: two first positioning supports arranged perpendicularly; and two second positioning supports arranged perpendicularly and separated from the first supports. Each second positioning support is parallel to a corresponding first positioning support, forming a placement space for the template to be welded between the second and first positioning supports, thereby enabling welding of the two templates at an included angle of degrees. This welding positioning device can limit the welding of two templates, ensuring welding accuracy.

The utility model belongs to the technical field of power distribution cabinet production, and particularly relates to a plate welding device which comprises a base, a right-angle seat is installed on the base, clamping assemblies are arranged on a bottom plate and side plates of the right-angle seat respectively, a sliding groove is formed in the bottom plate of the right-angle seat, double screws are rotationally connected to the inner walls of the sliding groove respectively, and the double screws are connected with the right-angle seat and the side plates of the right-angle seat respectively. The thread directions of the first screw rod and the second screw rod are symmetrical and opposite, clamping bases are installed on the sliding blocks, a first metal plate is placed on a bottom plate of the right-angle base, the two clamping bases clamp and fix the first metal plate, then the pressing plate presses the first metal plate, and the first metal plate is clamped and fixed through the clamping bases. According to the structure, the first metal plate and the second metal plate are clamped on the right-angle seat, so that the welding position of the first metal plate and the second metal plate is kept stable, the angle is accurate, the stability of the metal plates is improved, and the welding quality of the metal plates is improved. And the welding quality can be improved.

The invention discloses an overturning clamp for LED display screen production, and relates to the technical field of display screen production, the overturning clamp comprises a base, an adjusting assembly and an overturning assembly are arranged on the base, the adjusting assembly comprises a sliding groove, a movable seat is movably embedded in the sliding groove, a fixed seat is welded to the other side of the top of the base, and the fixed seat is welded to the top of the base. A first telescopic piece used for pushing the movable seat is installed on the base, and bearing seats are arranged on the movable seat and the fixed seat. The overturning assembly comprises two rotating shafts, a gear is fixedly connected to the rotating shaft on one side, a rack is arranged below the gear, and a second telescopic part used for driving the rack to move is arranged below the gear; according to the device, through sliding fit of a sliding groove and a movable seat and a limiting structure of an L-shaped bearing seat, precise adaptive adjustment of LED displays of different sizes is achieved, meanwhile, a gear and rack meshing transmission structure is adopted in cooperation with a turnover mechanism, the turnover angle is precisely controlled by means of the stroke of a second telescopic part, and it is ensured that the turnover process of the display screens is stable and the angle is precise.

The present application relates to the technical field of loader digging technology, and discloses a loader bucket control method, device, system and unmanned loader. When the loader bucket cuts into the material, the torque of the loader bucket is increased until the maximum torque, and the speed of the loader bucket is reduced to zero. If the speed of the loader bucket is zero and the torque of the loader bucket is the maximum torque, the state is maintained for a certain time. Based on the relationship curve between the angle of the loader bucket and the torque of the bucket, the loader bucket is controlled to perform the bucket collecting operation, which can prevent the bucket from being inserted into the material at a shallow position, so that the full bucket condition cannot be achieved. According to the actual angle of the bucket, the torque of the chassis is dynamically distributed to ensure the full bucket rate during the bucket digging process. When the loader bucket is parallel to the loader arm during the bucket collecting process, the torque of the loader bucket is controlled to be zero, so that the chassis does not apply torque after the bucket is collected, and the safety of the vehicle after the bucket is collected is ensured.

The utility model discloses an anti-damage type sealing ring mounting device. The anti-damage type sealing ring mounting device comprises a placing frame, a first air cylinder, a sealing ring mounting assembly and a feeding assembly. A bottom platform is arranged at the bottom of the placement frame; the first air cylinder is arranged on a middle platform of the placing frame; the sealing ring mounting assembly is arranged below the first air cylinder; the sealing ring mounting assembly comprises an aligning plate, a connecting plate, a second air cylinder and a push-down mounting ring; the alignment plate is arranged below the first air cylinder and connected with the output end of the first air cylinder through a connecting plate. The second cylinder is arranged on one side of the connecting plate away from the first cylinder; the push-down mounting ring is arranged on the circumferential surface of the alignment plate and is connected with the output end of the second air cylinder; the feeding assembly is arranged on a bottom platform of the containing frame. According to the anti-damage type sealing ring mounting device, progressive driving and pushing are achieved through the arrangement of the multiple air cylinders and the downward pushing mounting ring, it is guaranteed that the sealing ring is evenly stressed through pushing, the sealing ring is prevented from being damaged, and the production efficiency is improved.

The utility model relates to the technical field of physical experiment teaching aids, in particular to a simple harmonic motion experiment instrument, which comprises a base, a liquid spraying device, a support arranged on the base and a paper feeding device arranged on the base, the support comprises a cross rod, a first vertical rod and a second vertical rod, the first vertical rod and the second vertical rod are arranged on two opposite sides of the cross rod, and the cross rod is provided with a cycloid and connected with a pendulum ball. A gap exists between the lowest point of the swing ball in the natural state and the base, a spring is fixed to the first vertical rod and is horizontally placed in the natural state, one end of the spring is detachably connected with the swing ball, the liquid spraying device comprises a spraying pipe, and the liquid outlet end of the spraying pipe is fixedly connected with the swing ball; a spring oscillator experiment and a simple pendulum experiment are integrated on one device, so that students can conveniently compare two simple harmonic motion phenomena on the same platform, the essence and generality of the simple harmonic motion can be deeply understood, and the teaching effect is optimized. Meanwhile, through the detachable connection design, quick switching between a spring oscillator experiment and a simple pendulum experiment is facilitated, and different experiment requirements are met.

The utility model discloses an end polishing mechanism of a gear motor shell, which comprises a portal frame, a roller type polisher arranged at the top of the portal frame, a double-shaft moving unit arranged at the top end of the portal frame and used for controlling the X-axis position and the Z-axis position of the roller type polisher, and a bottom table fixed at the center position of the bottom of the portal frame, a double-station pneumatic clamping assembly used for clamping two gear motor shells is installed at the top end of the bottom table. According to the flange end face gear motor shell polishing device, the portal frame, the double-shaft moving unit, the roller type polisher, the double-station pneumatic clamping assembly and other structures which are matched with one another are arranged, the double-station pneumatic clamping assembly is designed to fix two flange end face gear motor shells to be polished at the same time, and the X-axis position and the Z-axis position of the roller type polisher are controlled in combination with the double-shaft moving unit; continuous grinding machining operation of two workpieces is achieved, an operator only needs to conduct discharging and clamping after one period is finished, and frequent shutdown and starting are reduced.

The invention relates to the technical field of photovoltaic installation equipment, in particular to photovoltaic panel installation transferring and lifting equipment which comprises an installation frame, a plurality of photovoltaic panels stacked in the installation frame, containing grooves formed in the left side and the right side of each photovoltaic panel, and a lifting mechanism arranged on the outer side of the installation frame and used for lifting the photovoltaic panels. Comprising a spring slot plate elastically contained in the containing groove and a first telescopic driving piece connected with the mounting frame. According to the invention, through cooperative cooperation of the spring slot plates, the telescopic driving member 1 and the plug board, the spring slot plates at the two sides of the top photovoltaic panel are driven by the third elastic assembly to automatically stretch out, and the plug board driven by the telescopic driving member 1 is cooperated to clamp and lift the top photovoltaic panel; according to the photovoltaic panel lifting device, a plurality of photovoltaic panels can be continuously and orderly lifted only through repeated lifting of one driving mechanism, the lifting operation is simplified, the working efficiency and continuity are improved, and the installation efficiency is improved.

This invention provides a method, system, computer equipment, storage medium, and program product for avoiding solar interference in inter-satellite laser communication. The method includes: determining the current unit pointing light vector of the laser communication terminal in the J2000 coordinate system as the first unit pointing light vector; obtaining the solar vector in the J2000 coordinate system; calculating the angle between the first unit pointing light vector and the solar vector; if the angle is not greater than a preset angle, rotating the first unit pointing light vector along its component direction on the normal plane of the solar vector by a second angle, iteratively adjusting and accumulating the angle until the accumulated angle exceeds the preset angle; subsequently planning the motion trajectory of the rotated vector towards a safe direction on the normal plane to achieve solar interference avoidance. This invention can avoid solar interference before and after the establishment of inter-satellite laser communication. By directional rotation along the component of the normal plane, it avoids the terminal directly looking at the sun, significantly improving the safety of the avoidance process, while also helping to maintain pointing stability.

The present application relates to profile cutting technical field. The purpose is to provide a kind of aluminium alloy door and window profile special-shaped section processing equipment, including cutting table and the conveying roller group being arranged in the both sides of cutting table;It also includes two sets of internal air support device being symmetrically arranged on the side of cutting rotary table and support frame, the internal air support device includes cavity sealing mechanism, pressure detection component and inflation assembly, the inflation assembly can inject compressed gas into support cavity according to the real-time pressure data of feedback, to make support cavity maintain preset constant pressure;The compressed gas can apply the compression force of guiding surface on support frame to profile while supporting profile side wall.The present application solves the industry pain points of support failure, cutting deformation and insufficient precision when processing open inner groove profile by traditional equipment, through the innovative design of internal constant pressure air support+external accurate positioning+attitude collaborative constraint, realizes high-precision, high versatility and high-efficiency profile cutting.

The utility model relates to the technical field of light source equipment, in particular to a double-U-hole three-dimensional light source with a heat dissipation structure, the light source is composed of a shell base, an LED light source array, a circuit board and a scattering cover, double U-shaped holes are formed in the shell base, and the scattering cover is arranged on a containing cavity in a covering mode to form a light-emitting face. The heat dissipation assembly comprises an aluminum substrate, a heat dissipation glue coating, heat dissipation holes and a heat dissipation fan, the aluminum substrate is arranged in the shell base, the heat dissipation glue coating is arranged between the aluminum substrate and the shell base, the heat dissipation holes are communicated with the outside and the containing cavity, and the heat dissipation fan is arranged in the containing cavity. Through the special structure of the double U-shaped holes and the scattering cover, the light source can provide uniform illumination; due to the design of curvature recesses and side edge recesses of the light-emitting surface, the light uniformity and the stray light suppression effect are optimized. The heat dissipation assembly optimizes the heat dissipation structure and prolongs the service life of the light source; meanwhile, the light source control panel is integrated in the light source, connecting lines between the light source and the light source controller are reduced, cost is reduced, and economic benefits are improved.

The utility model discloses a tunnel advanced small duct positioning and guiding arch frame, which comprises an arch frame unit, an arch frame unit, a guide unit, a guide unit, a guide unit and a control unit, the arch frame unit comprises an arch bar and a lifting mechanism, and the two ends of the arch bar are respectively erected on the lifting mechanism; the positioning unit comprises sliding seats and directional pipes, the multiple sliding seats are installed on the arch bars in a sliding mode, the directional pipes are arranged on the sliding seats at preset angles, and locking pieces used for fixing the sliding seats on the arch bars are arranged on the sliding seats; through the arrangement of the arch frame unit and the positioning unit, the advanced small pipe positioning and guiding arch frame design which is adjustable in height, flexible in movement, accurate in angle and easy and convenient to operate is achieved, the problems that in the prior art, a positioning device is tedious in installation, fixed in angle and the like are effectively solved, and the efficiency, precision and safety of tunnel advanced small pipe construction are remarkably improved.

The utility model discloses a stage lamp hanging bracket device and a stage lamp thereof, which belong to the technical field of stage lamp hanging brackets and comprise a first hanging bracket supporting assembly, a second hanging bracket supporting assembly and a quick-locking hanging connecting piece, the quick-locking hanging connecting piece is used for fixedly connecting the first hanging bracket supporting assembly and the second hanging bracket supporting assembly and is used for being fixedly connected with an external truss. The first hanging bracket supporting assembly and the second hanging bracket supporting assembly each comprise a hanging bracket beam plate and a hanging bracket supporting plate which are fixedly connected. The two hanging bracket cross beam plates are nested with each other and slide relatively in the length direction so as to adapt to adjustment of the width of the stage lamp; the inner sides of the two hanging bracket supporting plates are respectively provided with an angle adjusting mechanism so that the stage lamp can be locked at an adjustable angle. Through the nested sliding structure of the first hanging bracket supporting assembly and the second hanging bracket supporting assembly, the width of the hanging bracket is adjusted, the diversified hanging requirements of single lamp or multi-lamp splicing are met, the pitch angle of the stage lamp is accurately configured in combination with the angle adjusting mechanism, and the requirement for flexible arrangement of modern stage lighting is met.

This utility model relates to the field of welding technology, specifically a rotating device for welding. It includes a welding machine main arm located at one end of the top of a worktable, a fixing frame on the outer side of the main arm, a welding machine base mounted at the bottom of the main arm, a welding machine support arm mounted at the top of the main arm, a second stepper motor mounted at one end of the support arm, and a welding head connected to one end of the support arm. This utility model can drive the workpiece and the welding machine to rotate, expanding the welding range and allowing the weld seam on the workpiece to be positioned more conveniently for welding. It enables multi-angle welding of the components, effectively improving welding efficiency and quality, and is suitable for widespread use.

This utility model discloses a slitting film guiding structure for film cutting, comprising: a guide rod, the length of which extends along the width direction of each slitting film, the guide rod being configured to abut against each slitting film to guide each slitting film; a moving component, connected to the guide rod, for driving the guide rod to move along its axial direction to adjust the position of each slitting film; and a swinging component, comprising two swing arms, each swing arm being connected to one end of the guide rod, the two swing arms being configured to swing at one end to drive the guide rod to swing, thereby adjusting the angle of each slitting film; by using the two swing arms of the moving component and the swinging component to drive the guide rod to move and swing along its axial direction, the winding direction and winding angle of each slitting film can be precisely and flexibly adjusted, avoiding overlapping winding of each slitting film during coaxial winding, ensuring clear boundaries of each slitting film roll, and improving the quality and performance of the finished product.

The utility model discloses a steadily controlled multi-section plate rolling machine relates to plate rolling machine technical field, the steadily controlled multi-section plate rolling machine comprises a machine table, the inner wall of the machine table is provided with an upper roller, the lower part of the upper roller is provided with a lower roller, the two sides of the lower roller are provided with side rollers, one side of the machine table is provided with a stable feeding assembly, and the other side of the machine table is provided with a stable discharging assembly. The stable feeding assembly comprises a supporting frame and a feeding roller, the feeding roller is installed on the inner wall of the supporting frame, a sliding table is installed on the inner wall of the supporting frame, a sliding block is installed on the surface of the outer side of the sliding table, a mounting frame is arranged on the top face of the supporting frame, and a bidirectional threaded rod is installed on the inner wall of the mounting frame. Through the arrangement of the stable feeding assembly, the feeding roller, the sliding table, the sliding block, the mounting frame, the two-way threaded rod, the moving block, the moving frame, the limiting wheel and other components work cooperatively.

The application discloses a welding machine suitable for welding of straight line and turnout rails, and relates to the technical field of track welding equipment. The welding machine comprises a first part, a second part, a first clamping mechanism, a second clamping mechanism, a first telescopic mechanism and a second telescopic mechanism. The first clamping mechanism comprises a first clamping assembly for clamping a rail. The second clamping mechanism comprises a second clamping assembly for clamping another rail. The first clamping assembly and the second clamping assembly are in the same horizontal plane and in the same linear direction in the state of clamping the rails. The first telescopic mechanism comprises a first telescopic assembly capable of driving the first part and the second part to approach each other. The second telescopic mechanism comprises a second telescopic assembly capable of driving the first part and the second part to generate a mutual moving-away trend. The application can effectively avoid the V-shaped structure of the rails after rail welding construction, thereby effectively improving the rail welding quality and ensuring the structural stability and service life of the rails.

The utility model discloses a full-automatic pasting device for a mouse foot pad. An adhesive pasting mechanism comprises an adhesive pasting head and a three-axis moving module used for driving the adhesive pasting head to move in the X axis, the Y axis and the Z axis. The feeding feeder is located within the machining range of the rubberizing mechanism. The open end of the feeding mechanism is a feeding end and is used for feeding a to-be-processed mouse; the middle section of the feeding mechanism is a rubberizing position and is positioned in the processing range of the rubberizing mechanism; the tail end of the feeding mechanism is a glue pressing end, and the glue pressing mechanism is arranged at the glue pressing end. The rubberizing mechanism is provided with a three-axis moving module and a double-vision detection system, so that material taking angle correction and accurate attaching positioning are realized; a plurality of groups of parallel feeding moving modules work alternately, so that continuous processing can be realized without shutdown; the glue pressing module and the feeding module correspondingly and synchronously press glue and are matched with a limiting pressing plate to fix the mouse, so that tight fitting is ensured; the modular structure and the common cylinder design simplify the equipment, reduce the cost, have universality and flexibility, and meet the modern production requirements.

This utility model discloses a vertical magnetic rice spoon, relating to the field of rice spoon technology. It includes: a magnetic base plate with magnetic properties; an adhesive layer disposed on the lower surface of the magnetic base plate; a rice spoon body connected to the upper surface of the magnetic base plate; and an iron sheet embedded in the handle portion of the rice spoon body at the end furthest from the spoon body. The magnetic attraction between the iron sheet and the magnetic base plate is used to detachably fix the rice spoon body to the magnetic base plate. This utility model, through the magnetic attraction of the thin iron sheet embedded in the bottom of the rice spoon and the magnetic adhesive, combined with the circular flat design of the bottom, effectively counteracts the unbalanced force caused by rice grains sticking to the center of gravity, preventing the rice spoon from tipping over and causing rice leaves to contact the table surface, thus maintaining hygiene. While achieving stable standing, it eliminates the need for additional bottom weights like a roly-poly design, ensuring the rice spoon has sufficient length and a good feel, conforming to daily usage habits. After scooping rice, the user simply needs to bring the rice spoon base close to the magnetic adhesive, and it will automatically and stably adhere using magnetic force, making placement quick and easy.

The utility model discloses a detachable persistent viscidity hanging tool appliance which comprises a pasting stainless steel plate, a fixed balancing weight, an adjustable balancing weight, a hollow circular groove, a hanging weight and a test sample, the pasting stainless steel plate is connected with the side edge of the fixed balancing weight through a bolt, and the pasting stainless steel plate is used for fixing the test sample. The fixed balancing weight and the adjustable balancing weight are both in a right triangle shape in the side view, mortise and tenon joints are arranged on the right-angle sides of the fixed balancing weight and the adjustable balancing weight, the adjustable balancing weight is detachably connected with the fixed balancing weight through the mortise and tenon joints, a hollow circular groove is formed in the side face of the adjustable balancing weight, and one end of a test sample is connected with the pasting stainless steel plate. And the other end is connected with the suspension weight. The device is accurate in angle, the suspension center line is perpendicular to the ground, and the deviation angle error of a sample is smaller than or equal to 0.1 degree. And the force application is constant: through a counterweight balance equation, the suspension force of the suspension weight is ensured to be always 200g + / -2g. And the pasted stainless steel plate, the fixed balancing weight and the adjustable balancing weight all adopt modular design.

The utility model relates to the technical field of digital tube bending foot, disclose a kind of adjustable digital tube automatic bending foot device, including bending foot machine, the sliding platform is slidably connected in the bending foot machine inner wall, the sliding platform inner wall is provided with adjusting assembly, the sliding platform outer wall is fixedly connected with press bender, the bending foot machine top is fixedly connected with worktop, the worktop outer wall is provided with clamping assembly, the adjusting assembly includes limiting rod, the limiting rod outer wall is slidably connected in the sliding platform inner wall, the bending foot machine inside is provided with fixed hole, the limiting rod outer wall is slidably connected in the fixed hole inner wall. In the utility model, by pulling pull rod to drive limiting rod to move, then by limiting rod to move out of fixed hole inside to release the fixation of sliding platform, avoid facing the digital tube of different thickness or height, due to insufficient pressure, leading to digital tube pin deformation, fracture, even damage digital tube itself, to ensure the flatness and consistency of bending foot.

This utility model relates to an L-shaped well surveying device, comprising a main rod and a crossbar vertically fixedly connected to the lower end of the main rod, forming an L-shaped structure; it also includes a telescopic extension rod and a rotating connection mechanism; the rotating connection mechanism is located at the right-angle fixed shaft connecting the main rod and the crossbar; one end of the telescopic extension rod is hinged to the right-angle fixed shaft through the rotating connection mechanism, allowing the telescopic extension rod to rotate from 0° to 90° relative to the crossbar in the vertical plane; the telescopic extension rod is composed of at least two sections of square tubing connected together, and its telescopic length is fixed by a locking mechanism; a waterproof lighting device is provided at the bottom of the crossbar; a first opening is provided on one side of the main rod for the telescopic extension rod to be inserted into it when rotated to be parallel to the main rod; a second opening is provided on the crossbar for the telescopic extension rod to be inserted into it when rotated to be in the same direction as the crossbar. It can solve the problem of difficult underground pipeline surveying in environments with small well openings and large well chambers.