32results about How to "Achieve stable positioning" patented technology

The invention relates to bamboo processing machinery and in particular relates to a bamboo perforating machine. According to the technical scheme, the bamboo perforating machine comprises a perforating component and a material clamping component which can generate relative displacement, wherein the material clamping component comprises a mounting rack, a horizontal clamping mechanism and a longitudinal clamping mechanism; the mounting rack is provided with a feeding side and a material pressing side, and the horizontal clamping mechanism and the longitudinal clamping mechanism are arranged on the mounting rack; the horizontal clamping mechanism comprises a rotating piece, a side pressing piece and a horizontal driving device; the rotating piece is rotatably connected to the feeding side; the side pressing piece is positioned on the material pressing side and can generate the relative displacement with the rotating piece in a turnup state so as to clamp or loosen materials in the horizontal direction; the horizontal driving device is used for driving the side pressing piece to be displaced; the longitudinal clamping mechanism comprises a longitudinal pressing piece and a longitudinal driving device; the longitudinal pressing piece can generate the longitudinal displacement so as to be matched with the mounting rack to clamp or loosen the materials in the longitudinal direction; the longitudinal driving device is used for driving the longitudinal pressing piece to be displaced. The bamboo perforating machine has a good positioning function on the materials and can realize a good automatic perforating effect.

The invention discloses a bag type dust-collecting built-in bag cage and a combined mounting structure of the bag cage and a filtering bag on a tube sheet. The bag cage in inserted into the filtering bag, and when the bag cage is mounted into a hole of the tube sheet a mounting worker forcedly folds the upper ends of vertical ribs and the upper end of the filtering bag, so that the upper ends of the bag cage and the filtering bag can pass through the tube sheet hole; the vertical ribs are released and hands are stretched into the adjacent hole of the tube sheet to operate an expanding structure, so that a plurality of the vertical ribs are stably expanded; lifting hooks at the top ends of the plurality of the vertical ribs stretch out of the opening of the filtering bag to be hooked on the upper surface at the periphery of the hole of the tube sheet; and meanwhile, the opening of the filtering bag is tightly held by elastic acting force of an elastic piston ring, so that the hole edge of the tube sheet hole is inserted into a groove of the opening of the filtering bag; and therefore, the filtering bag is stably positioned. When mouting the bag cage and the filtering bag, the mounting worker only needs to stand below the tube sheet to operate the expanding structure from the adjacent tube sheet hole to finish the mounting without need of climbing on the tube sheet, so that the mounting operation is convenient and the height of a space above the tube sheet is saved.

The invention discloses an automatically-controlled bend milling clamping device. The automatically-controlled bend milling clamping device comprises a first clamp, a second clamp and a controller. The first clamp and the second clamp are hinged, and angle adjustment of the first clamp and the second clamp can be achieved in the hinged mode. A first lifting base is arranged at the bottom of the first clamp. A second lifting base is arranged at the bottom of the second clamp. The controller is connected with the first lifting base and the second lifting base to control the height of the first lifting base and the height of the second lifting base. By means of the automatically-controlled bend milling clamping device, the first lifting base and the second lifting base can achieve automatic lifting control. Meanwhile, angle adjustment is achieved in the hinged mode, and bends of different curvatures can be machined. Moreover, a positioning base and a positioning head are arranged so that the bends can be positioned steadily. Meanwhile, by matching a compression assembly of the clamping device, the compressing effect can be well improved, and the clamping effect of bend milling is enhanced.

The invention relates to an animal dorsal root ganglion-spinal cord fixed imaging and compression injury combining device, which comprises a dorsal root ganglion-spinal cord fixed imaging device and a microscopic fluorescent dye injection and spinal cord compression injury integrating device, wherein the animal dorsal root ganglion-spinal cord fixed imaging device (1) comprises a horizontal slide block guide rail (1-1), a fixing component (1-2), a slide rod (1-3) and a spine fixing clamp (1-4), and the microscopic fluorescent dye injection and spinal cord compression injury integrating device (2) comprises a vertical-rotating regulating side rod (2-3), a horizontal regulating component (2-4), a microscopic injection component (2-5) and a spinal cord compression component (2-6). The combining device has the advantages that multiple functions are integrated, the operation is simple and convenient, the switching can be realized at any time, different-degree spinal cord injury animal models can be conveniently manufactured, and after the fluorescent dye microscopic injection, a two-photon microscope is used for dynamically observing the pathological and physiological change process of the dorsal root ganglion-spinal cord injury in real time.

The invention relates to the field of medical rehabilitation machinery and discloses a lower limb standing fixator which comprises a base bearing support, a pedal assembly, a leg fixing assembly, an armrest supporting assembly, a hand bearing assembly, a waist limiting assembly and a chest abutting assembly. A bearing plate fixedly connected with the base bearing support is arranged at the bottomof the base bearing support. The pedal assembly is mounted at the top of the bearing plate; a vertical fixing frame fixedly connected with the base bearing support is arranged at the top of the base bearing support. The leg fixing assembly is installed on the front side wall of the fixing frame. The hand supporting assembly is installed on the rear side wall of the fixing frame. The waist limitingassembly is mounted at the bottom of the hand supporting assembly. The chest abutting assembly is installed on the top of the hand bearing assembly. The armrest supporting assembly is installed on the rear end of the hand bearing assembly. According to the invention, , the stable standing rehabilitation training requirements of the disabled or the old with different heights and body types can becarried out, and the rehabilitation training device is high in safety performance and comfort degree and high in practicability.

The invention relates to a strip lamp assembly tool. The strip lamp assembly tool comprises an aluminum bottom loading mechanism, a distance adjusting sliding rail, a screw driving mechanism and an end cover feeding mechanism, loading and positioning of an aluminum bottom can be achieved through the aluminum bottom loading mechanism, a first sliding seat and a second sliding seat are arranged in the left-right direction, it is guaranteed that end covers at the two ends of the aluminum bottom are installed on the same plane, and the assembling straightness of the lamp is ensured; and meanwhile, the distance between the sliding seats of the aluminum bottom loading mechanisms can be adjusted through the distance adjusting sliding rails, so that the aluminum bottom loading mechanisms can be used for loading strip lamps of different specifications, the tool assembling machine can be suitable for assembling the strip lamps of different specifications, the screw driving mechanism can achieve automatic screw driving so that the end covers and the end of the aluminum bottom can be fixed into a whole through screws, compared with a manual screw driving mode, the assembling efficiency of the strip lamp can be greatly improved through the automatic screw driving mode, and in addition, automatic feeding of the end covers can be achieved through the end cover feeding mechanism.

The invention discloses a pole lug welding device. The pole lug welding device comprises a fixture base, a battery core pressing plate, a pole lug pressing plate and a welding device. According to the pole lug welding device, a first platform is matched with the battery core pressing plate for achieving pressing of a battery core, and therefore the position of the battery core is prevented from changing in the welding process; a second platform is matched with the pole lug pressing plate for achieving pressing of pole lugs, and therefore the position of each pole lug is prevented from changing in the welding process; and welding of the pole lugs is achieved through the welding device. According to the pole lug welding device, stable positioning of the battery core and the pole lugs is achieved, the position of the battery core and the position of each pole lug cannot be changed in the welding process, positioning accuracy of the pole lugs in the welding process is guaranteed, and therefore the production quality of the battery core is improved to some extent.

The invention relates to the technical field of electric vehicle accessory assembling, and discloses a workbench for electric vehicle accessory assembling. The workbench comprises a workbench body, wherein a support is fixedly connected to the upper end of the workbench body; two rollers are rotationally connected to the inner walls of the front and back opposite sides of the support in a left-right symmetry manner through rotating shafts; the same conveying belt is wound between the roller walls of the two rollers; the rotating shaft on one roller penetrates and extends out of the support andis fixedly connected with a driven gear; a drive motor is fixedly connected to the outer wall of the support; an output shaft of the drive motor is fixedly connected with a drive gear engaged with the driven gear; and a storage box with an opening in the upper end is fixedly connected to the upper end of the workbench body. The workbench for electric vehicle accessory assembling has the beneficial effects that the assembling efficiency is greatly improved, and assembling and use are facilitated.

The invention relates to an animal dorsal root ganglion-spinal cord fixed imaging and compression injury combining device, which comprises a dorsal root ganglion-spinal cord fixed imaging device and a microscopic fluorescent dye injection and spinal cord compression injury integrating device, wherein the animal dorsal root ganglion-spinal cord fixed imaging device (1) comprises a horizontal slide block guide rail (1-1), a fixing component (1-2), a slide rod (1-3) and a spine fixing clamp (1-4), and the microscopic fluorescent dye injection and spinal cord compression injury integrating device (2) comprises a vertical-rotating regulating side rod (2-3), a horizontal regulating component (2-4), a microscopic injection component (2-5) and a spinal cord compression component (2-6). The combining device has the advantages that multiple functions are integrated, the operation is simple and convenient, the switching can be realized at any time, different-degree spinal cord injury animal models can be conveniently manufactured, and after the fluorescent dye microscopic injection, a two-photon microscope is used for dynamically observing the pathological and physiological change process of the dorsal root ganglion-spinal cord injury in real time.

The invention provides an ultra-high hardness laser fusion covering wear-resistant thermometer sleeve used for inserting a thermometer. The thermometer includes an instrument board and a probe and further includes a thermometer sleeve body, wherein the thermometer sleeve body includes a sleeve and a stabilizing assembly, the stabilizing assembly includes a casing, the casing is arranged below thesleeve, an inner wall of the casing is uniformly distributed with two L-shaped rods, right-angle portions of the L-shaped rods are in rotation connection with an inner wall of the casing, upper ends of the L-shaped rods are in rotation connection with butting blocks, a lifting disc is arranged between the two L-shaped rods, and a lower portion of the lifting disc is provided with a spring. Compared with the prior art, the thermometer sleeve is advantaged in that hardness and wear property of the sleeve are improved while stability of a lower end of the thermometer is guaranteed.

The invention provides profile stretch bending equipment. The profile stretch bending equipment comprises: a working platform, a left swing arm assembly and a right swing arm assembly, used for clamping and stretching the two ends of a profile; and swing arm oil cylinder assemblies. The left swing arm assembly and the right swing arm assembly are located on the two sides of the working platform correspondingly. The swing arm oil cylinder assemblies are connected with the left swing arm assembly and the right swing arm assembly. The working platform comprises a platform base, a base, a pressingmechanism used for longitudinally positioning the profile, a horizontal positioning mechanism used for positioning the profile in the horizontal direction, and a tangent point positioning mechanism used for positioning a tangent point when the profile is subjected to stretch bending. Each of the left swing arm assembly and the right swing arm assembly comprises a swing arm base body and a material pulling arm mechanism arranged on the swing arm base body. The swing arm oil cylinder assemblies are connected with the swing arm base body so as to drive the swing arm base body to swing. The profile stretch bending equipment can achieve high-precision and high-efficiency stretch bending of the profile and has the advantages of being easy and convenient to operate and high in practicability, and therefore the stretch bending quality of the profile is guaranteed.

The invention relates to the rotor processing technology field, particularly relates to a marking positioning device, can realize stable positioning of a rotor and guarantees intelligible marking. The device comprises a lower portion ejection device and a side portion clamp mounted on a conveying belt, wherein the side portion clamp comprises a fixed clamp and a movable clamp which are in mutual matching with each other, the fixed clamp comprises a fixed clamp bottom board fixedly mounted on the conveying belt, the fixed clamp bottom board is fixedly equipped with a fixing top cone, the movable clamp comprises a movable clamp bottom board fixedly mounted on the conveying belt, the movable clamp bottom board is equipped with a movable top cone through a pressure spring, the lower portion ejection device is arranged at the lower end of the side portion clamp, the lower portion ejection device comprises an ejection cylinder fixing board, the ejection cylinder fixing board is fixedly equipped with an ejection cylinder, a piston rod of the ejection cylinder is equipped with a driving lever fixing seat, and one end of the driving lever fixing seat is equipped with a workpiece pull pin.

The invention relates to the technical field of magnet detection and particularly discloses a magnet magnetism detection machine which comprises a machine table, a machine core arranged on the machinetable and a display screen electrically connected with the machine core, the machine core is provided with a plurality of magnetism detection units, and the display screen is used for displaying a detection result of a magnet, the machine also comprises a limiting plate which is detachably connected with the machine table and a cover plate movably arranged with the machine table, the limiting plate is provided with a plurality of limiting holes, and the limiting holes are used in cooperation with the magnetism detection units respectively. The plurality of limiting holes are respectively usedfor accommodating a plurality of external magnets; the cover plate is used for packaging the magnets in the limiting holes; when a magnetizer magnetizes magnetic bodies into magnets, the magnets arerespectively arranged in the limiting holes, then the cover plate presses against the limiting plate to package the magnets in the limiting holes, then the machine core is started, the one-time detection of the magnets is realized by utilizing the magnetism detection units of the machine core, and the magnetic detection efficiency of the magnets is improved.

A tumor radiotherapy positioning device disclosed by the present invention comprises a positioning bed board, supporting legs are arranged at four corners of the lower end surface of the positioning bed board, universal wheels are installed on the outer surfaces of the supporting legs close to the lower ends, and a supporting column is arranged in the middle of the upper end surface of the positioning bed board close to the left side. According to the positioning device, the longitudinal width between the two movable body blocks can be changed, so that the positioning device can be suitable for patients of different body types, limiting and fixing can be conveniently carried out according to the specific body types of the patients, convenience is brought to the patients and medical staff, the overall flexibility of the positioning bed board is improved, and convenience is brought to convenient transfer of the positioning device. A trunk positioning plate provides local position fixation for a patient with a small size, so that the patient is prevented from shaking during tumor treatment, and smooth tumor treatment is ensured.

The invention discloses an aligning jig which comprises a annular frame, and a positioning mechanism used for fixing a back lining comprising a circuit board array is arranged on the annular frame; a regulating mechanism used for regulating a piezoelectric array element is arranged in the position, above the positioning mechanism, of the annular frame; and a pressing mechanism used for pressing the piezoelectric array element and the back lining is arranged above the top of the annular frame. The aligning jig solves the problem of alignment of the circuit board and the piezoelectric array element, is simple to operate, and is precise in positioning.

The invention discloses a UV adhesive pressing and solidifying device. The UV adhesive pressing and solidifying device comprises an adhesive pressing unit, a solidifying unit and an electric control unit, wherein the adhesive pressing unit comprises lifting tables and a pressing plate, placing tools are arranged on the lifting tables capable of raising and lowering, and grooves for accommodating objects to be subjected to adhesive pressing and solidifying are formed in the upper surfaces of the placing tools; micrometer heads are arranged on the lifting tables, and the height of the micrometer heads is regulated between the height of the objects to be subjected to adhesive pressing and solidifying in the grooves and the height of UV adhesive layers coated on the surfaces of the objects to be subjected to adhesive pressing and solidifying; glass panels positioned above the lifting tables are embedded in the pressing plate adopting a horizontal planer structure; and the solidifying unit comprises an UV lamp movably arranged above the pressing plate. The UV adhesive pressing and solidifying device provided by the invention carries out adhesive pressing and solidifying on the UV adhesive layers coated on the objects to be subjected to adhesive pressing and solidifying so as to realize the shaping of the UV adhesive layers. Through regulating the height of the micrometer heads, the thickness of the UV adhesive layers is adjustable during adhesive pressing. As the plurality of lifting tables and an UV lamp movement mechanism are further arranged, alternate adhesive pressing and solidifying are convenient to carry out. The UV adhesive pressing and solidifying device has the advantages of being simple in structure and high in efficiency.

The invention relates to a damping architecture of a transformer substation. The damping architecture comprises a cross beam body that has a hollow structure and is fixed on a plurality support posts.Guiding slots extending along the axial direction of the cross beam body are formed in the parts, between the adjacent support posts, of the cross beam body; and chutes in parallel to the axial direction of the cross beam body are formed in the surfaces of the guiding slots. Two positioning members in a cooperative sliding manner are arranged at the chutes; each positioning member consists of a bottom plate, a plurality of support blocks, and a rotating member; the rotating member is in rotation connection with the support blocks to realize selection of a vertical position and a parallel position of the rotating member and the cross beam body; and the rotating member is provided with a through hole to fix an electrical device. Besides, sliding lugs matching the chutes are arranged below the bottom plate. And a buffer layer, an insulation layer, and a protection layer are arranged on the lower surface of the bottom plate of each positioning member from inside to outside. Therefore, theinfluence on a to-be-fixed device by vibration caused by operation of primary equipment is eliminated. The architecture has advantages of high expandability, great convenience in disassembling and assembling, and good shock resistance performance.

The invention relates to the field of welding equipment, in particular to intelligent oil cup welding equipment. The intelligent oil cup welding equipment comprises a machining table and further comprises a positioning device, the positioning device comprises a main body positioning assembly and two flexible edge pressing assemblies, the two flexible edge pressing assemblies are symmetrically arranged at the two ends of the main body positioning assembly and located above the main body positioning assembly, the symmetrical faces of the two flexible edge pressing assemblies are located on the middle section of the main body positioning assembly, the two flexible edge pressing assemblies are fixed through a strip-shaped plate, the strip-shaped plate can vertically move on the machining table, a first linear driver used for driving the strip-shaped plate to vertically move is further arranged on the machining table, and the two ends of the main body positioning assembly are each provided with a laser welding robot. The positioning work of an oil cup is achieved through the main body positioning assembly and the two flexible edge pressing assemblies, and therefore the oil cup is kept complete, the quality of the oil cup is guaranteed, and meanwhile labor force of manual welding is reduced.

The invention relates to a fixed-length cutter mounting device of a numerical control milling machine. The device comprises a connector, a detachable mounting cylinder is installed at the tail end of the connector, a mounting plate is fixed to the tail end of the mounting cylinder, a plurality of clamping arms capable of moving in the radial direction are arranged at the tail end of the mounting plate, clamping blocks are arranged at the tail ends of the clamping arms respectively, an ejector plate capable of adjusting a vertical position is arranged in the center of the tail end of the mounting plate, a plurality of reinforcing arms capable of swinging in the radial direction are arranged on the periphery of the mounting cylinder, reinforcing seats capable of adjusting a radial position are arranged on the sides, close to the clamping arms, of the tail portions of the reinforcing arms correspondingly, and reinforcing clamps capable of swinging up and down are hinged to the sides, close to the clamping arms, of the reinforcing seats correspondingly; and an indicating rod capable of moving up and down is arranged in one of the clamping blocks, a rotating handle capable of rotating horizontally is arranged at the tail end of the indicating rod, and scale marks are arranged on the periphery of the indicating rod in the length direction. According to the fixed-length cutter mounting device of the numerical control milling machine, the problems that an existing device is inconvenient in adjusting mode and unstable in clamping are effectively solved.

The invention relates to the technical field of arteriopuncture, in particular to an arteriopuncture auxiliary device with an arm stabilizing function, an adjusting and stabilizing mechanism and a puncture positioning mechanism are arranged on a base, the arm of a patient can be stably fixed through mutual cooperation of the base and the adjusting and stabilizing mechanism, and the fixing effect is good; moreover, adjustment can be carried out through the adjusting and stabilizing mechanism according to the specific arm condition of a patient, the adaptability is good, the arm stability during puncture is guaranteed, after the arm is stabilized, the puncture deviation during puncture can be avoided through the puncture positioning mechanism, and the puncture accuracy is improved. And medical staff can stably position the puncture needle through the puncture positioning mechanism and puncture the patient, so that the puncture stability is ensured.

The invention discloses a fire-fighting command comprehensive operation vehicle. The vehicle comprises a carriage (2), a dock leveler device assembly (3) and a fire-fighting robot locating device assembly (4). The carriage comprises a fire-fighting robot command room (21) and a fire-fighting robot locating bin (22); the dock leveler device assembly comprises bridge plates (32), a bridge plate telescopic hydraulic cylinder (33) and a bridge plate amplitude-changeable hydraulic cylinder (34); the bridge plates comprises the base bridge plate (321) and at least one telescopic bridge plate (322). The base bridge plate and the telescopic bridge plates are provided with bridge plate side baffles; the fire-fighting robot locating device assembly comprises a front locating baffle (41), a side locating baffle (42) and a rear locating baffle (43). By means of the fire-fighting command comprehensive operation vehicle, on the premise that the motions of a fire-fighting robot and the processing of data information are conveniently controlled, the fire-fighting robot can voluntarily enter the carriage inside, and then the aims of quick response and centralized control are achieved, and the fire-fighting command comprehensive operation vehicle is especially suitable for controlling and ferrying a high-power fire-fighting robot.

The invention relates to a damping architecture of a transformer substation. The damping architecture comprises a cross beam body that has a hollow structure and is fixed on a plurality support posts.Guiding slots extending along the axial direction of the cross beam body are formed in the parts, between the adjacent support posts, of the cross beam body; and chutes in parallel to the axial direction of the cross beam body are formed in the surfaces of the guiding slots. Two positioning members in a cooperative sliding manner are arranged at the chutes; each positioning member consists of a bottom plate, a plurality of support blocks, and a rotating member; the rotating member is in rotation connection with the support blocks to realize selection of a vertical position and a parallel position of the rotating member and the cross beam body; and the rotating member is provided with a through hole to fix an electrical device. Besides, sliding lugs matching the chutes are arranged below the bottom plate. And a buffer layer, an insulation layer, and a protection layer are arranged on the lower surface of the bottom plate of each positioning member from inside to outside. Therefore, theinfluence on a to-be-fixed device by vibration caused by operation of primary equipment is eliminated. The architecture has advantages of high expandability, great convenience in disassembling and assembling, and good shock resistance performance.

The invention provides a positioning system for a special gauge for a lower connecting plate of a hexadecimal inner angle adjuster. The special gauge comprises a detecting table and a base, wherein the positioning system comprises a plurality of positioning pins, a plurality of positioning clamps and a positioning rack; the positioning clamps are arranged on the base; a square block with a squarecross section sleeves the head of each positioning pin; a plurality of positioning holes are formed in the detecting table; the positioning pins are separately inserted in the positioning holes; the length of a diagonal line of each square block is the same as the diameter of the corresponding positioning hole in which the square block is inserted; the positioning clamps are arranged in front of or on two sides of the front of the detecting table; moving ends of the positioning clamps point to the front end of the detecting table; the positioning rack is arranged at the rear of the detecting table; the upper end of the positioning rack extends to a position in front of the upper end of the detecting table to form a circular projection; a plurality of through holes are formed in the circular projection; a plurality of inserting holes are formed in the upper end of the detecting table; and the through holes correspond to the inserting holes at the rears of the through holes. Difficulty of positioning of a top end region of a to-be-detected sample is overcome, and the problem that position deviation is easily caused when the through holes in the upper end are detected is solved.

The invention relates to the technical field of civil air defense engineering, and discloses a civil air defense mouth and a shear wall pre-embedded casing, including a shear wall body, two fixed steel plates are arranged symmetrically inside the shear wall body, and the surfaces of the fixed steel plates are uniform There are a plurality of rectangular sockets, the rectangular sockets are inserted with rectangular steel sheath tubes, the opposite ends of the symmetrical two rectangular steel sheath tubes are uniformly connected with a first conical connecting cover, and the opposite ends of the two first conical connecting covers The same first circular steel sheath pipe is integrally connected, and the opposite ends of the two rectangular steel sheath pipes are integrally connected with a second conical connection cover. The pre-embedded casing of the civil air defense mouth and the shear wall and its reinforcement method can make the connection of the embedded casing of the shear wall more stable and durable, make the subsequent pipeline setting standard and convenient, and at the same time ensure the precise location of the pipeline. The relative position of the overall pipeline is reasonable, which improves the efficiency of on-site operations.

The invention relates to a 45-degree trimming device for angle steel. The 45-degree trimming device comprises a machine frame, wherein the machine frame is provided with a working table; a cutter frame is arranged above the working table; the cutter frame is provided with a cutter; the working table is provided with a baffle plate; an included angle of 45 degrees is formed between the cutters and the baffle plate; the baffle plate positions the angle steel in the perspective of the lateral side of the angle steel; the working table is provided with a pressing plate which is arranged opposite to the baffle plate; the pressing plate positions the angle steel in the perspective of the upper part of the angle steel. The 45-degree trimming device for the angle steel has the advantages that the position of the baffle plate is reasonably arranged, so that the angle steel is correctly placed as long as the vertical surface of the angle steel is butted to the baffle plate; meanwhile the stable positioning of the angle steel is realized through the restriction in two directions by utilization of the baffle plate and the pressing plate; a positioning rod is further arranged in the middle part of the baffle plate, and the position of the angle steel is accurately limited through the positioning rod, so that the angle steel is accurately positioned by the arrangement of the baffle plate and the positioning rod, therefore the operation of trimming the angle steel can be successfully realized.

The invention discloses an environment monitoring device which comprises a monitoring mounting frame, a sampling assembly and an adjusting assembly; positioning assemblies are symmetrically arranged on the outer side of the monitoring mounting frame, each positioning assembly comprises a positioning seat and a positioning driving rod connected to the positioning seat in a threaded mode, and a polygonal blind groove is formed in each positioning seat; a polygonal driving plate matched with the polygonal blind groove is rotationally installed at the end of the positioning driving rod, and secondary positioning assemblies are symmetrically arranged at the bottom of the polygonal limiting plate; Each secondary positioning assembly comprises a right trapezoid seat and a secondary positioning rod; by arranging the positioning driving rod, the positioning column, the lead screw, the right trapezoid seats and the secondary positioning rods, under the combined action of the positioning column and the secondary positioning rods, stable positioning of the whole device is achieved, manual auxiliary supporting is not needed, and the stability of the whole device is kept; labor is not consumed,and meanwhile, workers can concentrate on soil sampling conveniently.

The invention discloses a bag type dust-collecting built-in bag cage and a combined mounting structure of the bag cage and a filtering bag on a tube sheet. The bag cage in inserted into the filtering bag, and when the bag cage is mounted into a hole of the tube sheet a mounting worker forcedly folds the upper ends of vertical ribs and the upper end of the filtering bag, so that the upper ends of the bag cage and the filtering bag can pass through the tube sheet hole; the vertical ribs are released and hands are stretched into the adjacent hole of the tube sheet to operate an expanding structure, so that a plurality of the vertical ribs are stably expanded; lifting hooks at the top ends of the plurality of the vertical ribs stretch out of the opening of the filtering bag to be hooked on the upper surface at the periphery of the hole of the tube sheet; and meanwhile, the opening of the filtering bag is tightly held by elastic acting force of an elastic piston ring, so that the hole edge of the tube sheet hole is inserted into a groove of the opening of the filtering bag; and therefore, the filtering bag is stably positioned. When mouting the bag cage and the filtering bag, the mounting worker only needs to stand below the tube sheet to operate the expanding structure from the adjacent tube sheet hole to finish the mounting without need of climbing on the tube sheet, so that the mounting operation is convenient and the height of a space above the tube sheet is saved.