93 results about "Contact slide" patented technology

The invention belongs to the technical field of power connectors, and discloses a combined power connector which comprises a plug shell and a socket board, a socket connector is fixedly connected to the middle of the socket board, and a conductive assembly used for being communicated with the socket connector is installed in the plug shell. The two swing rods swing rightwards through the grip, so that the openings of the locking rods and the swing rods are aligned with the first L-shaped rods, then the plug connector is inserted into the socket connector, and the grip is swung leftwards, so that the contact sliding of the two locking rods and the two first L-shaped rods automatically drives the plug shell to move leftwards; the plug connector and the socket connector are connected more easily, after the two swing rods are perpendicular, the connection stability of the plug connector and the socket connector is guaranteed, meanwhile, a second T-shaped rod automatically moves downwards through the elastic tension of a tension spring and is inserted into a limiting groove, the two swing rods cannot continue to swing, and therefore the plug connector and the socket connector can be connected more easily. Therefore, the socket connector and the plug connector are locked.

The invention relates to the technical field of transfer line carrying machinery, and discloses an automobile hub coating transfer line carrying mechanical gripper and a using method thereof.The automobile hub coating transfer line carrying mechanical gripper comprises a connecting block, a mounting frame is fixedly connected to the bottom of the connecting block, a hydraulic pipe is fixedly connected to the inner wall of the mounting frame, and before use, the hydraulic pipe is conveyed into a center hole of an automobile hub through a mechanical arm; a power source of an electric telescopic rod is switched on, the electric telescopic rod drives a piston block to slide downwards along the inner wall of a hydraulic pipe through an L-shaped push rod, the downwards-moving piston block forces a plurality of pressed sliding blocks to slide outwards along the inner wall of a sliding through groove, and the outwards-moving pressed sliding blocks drive a hydraulic box and a contact sliding plate to slide outwards through a supporting square rod; the side walls of the multiple contact sliding plates are forced to make contact with the inner wall of the center through hole of the hub, the multiple externally-supported hydraulic boxes and the contact sliding plates form clamping force on the hub, and the phenomenon that indentations appear on a non-dry paint layer on the outer wall of the hub in a conventional external clamping mode is avoided.

The invention discloses a raceway turning treatment device suitable for machining a thin-wall bearing ring, which aims at the turning action of a raceway in the bearing ring and particularly improves the action process of a turning wheel by taking an outer tightening roller as an outer clamping structure of the bearing ring and taking the turning wheel as a basic structure for executing the turning action. The turning wheel performs directional constant-speed rotation through the connecting frame on the basis of executing turning action, the essence of the turning wheel is that the outer tightening roller and the turning wheel form an inner and outer two-way supporting structure, the vertically-distributed contact sliding blocks are arranged on the basis of the arrangement position of the connecting frame, and when the connecting frame performs directional rotation, the turning wheel and the contact sliding blocks form a cross-shaped supporting area; the free deformation process of the spring frame can also serve as a vibration bearing structure, the synchronous contraction / reset process of the contact sliding block can serve as the energy absorption and release process caused by vibration, and the situation that the turning process is affected by the vibration process is avoided.

The present invention relates to a production device for an ultra-long brazing furnace running belt, which includes a transportation mechanism, a forming mechanism, an assembling mechanism, and an edge-sealing mechanism arranged on a frame. The forming mechanism includes a material pushing component arranged on the frame, a bending component arranged on the material pushing component, a grooving component arranged on the bending component, a bead-inserting component arranged on the material pushing component, and a bead-sealing component arranged on the material pushing component. There is rolling friction between the spiral wire bars and the wavy string bars of the running belt, reducing the wear rate. The present invention can embed ball bearings at the inner bending positions of the wavy string bars, changing the contact sliding friction between the spiral wire bars and the wavy string bars into rolling friction, reducing the frictional force, increasing the service life of the running belt, saving the driving energy consumption during the operation of the running belt, and solving the technical problems that the brazing furnace running belt produced by traditional equipment has serious wear and a short service life during use.

The present invention relates to the technical field of follow-up welding, and discloses a follow-up power tower welding device, comprising a base, wherein the front and rear ends of the base are fixedly connected with side connecting plates, the upper surface of the base is fixedly connected with a fixed support seat, the side of the base is fixedly connected with a driving mechanism, the top of the driving mechanism is slidably connected with a movable seat, and the lower surface of the movable seat is hinged with a welder. In the present invention, the movable seat can quickly drive the welder to move to a specific position, thereby improving welding efficiency. During welding, the tower component is placed on the fixed support seat to prevent the component from rolling, thereby improving welding stability. The end of the positioning clamp away from the side connecting plate contacts the tower component, and then clamps the tower component, further improving welding stability. The end of the positioning clamp close to the side connecting plate is close to the annular fixing frame and pushes the contact sliding shaft to reset, thereby quickly loosening the tower component, making operation more convenient.

The invention provides a dustproof linear guide rail assembly with an automatic adjusting function, and relates to the field of guide rails, the dustproof linear guide rail assembly comprises a rail body and a sliding assembly, a sliding block and the rail body are in contact sliding through multiple rows of steel balls, the friction force between the sliding block and the rail body can be effectively reduced, heat generated during friction is small, and the service life of the sliding block is prolonged. The dustproof part is arranged in the mounting groove, high-speed running can be facilitated, the first retainer, the second retainer and the third retainer can prevent the steel balls from moving up and down in the using process, the running stability of the dustproof part can be improved, the dustproof part is directly mounted in the mounting groove, the dustproof part is limited in the using process, and the dustproof part is prevented from being damaged. Dust can be effectively prevented from entering the sliding blocks and the guide rail body, the service life of the steel balls can be prolonged, and the guide rail has the advantages of being high in rigidity and load, capable of rapidly running and high in running precision and facilitates running of precise instruments.

The invention discloses portable laser cutting equipment, and relates to the field of laser cutting equipment.The portable laser cutting equipment comprises an electric control case and a cutting host, a cutting mechanism is installed on the cutting host, positioning mechanisms are symmetrically installed on the side edge of the cutting host front and back, and a limiting mechanism and a control mechanism are further installed on the cutting host; the positioning mechanism comprises a rotating shaft, the rotating shaft is connected to the cutting main machine through a bearing, a scale rod is fixed to the upper end of the rotating shaft, a movable frame is connected to the scale rod in a sliding mode, a limiting tooth block is fixed to the movable frame, and a limiting frame is arranged on the lower side of the movable frame. According to the portable laser cutting equipment, the positioning and guiding mechanism capable of being folded and stored is adopted, when a workpiece is cut, the cutting width can be controlled by adjusting the position of a limiting frame, guiding and positioning are achieved in cooperation with contact sliding of the limiting frame and the side edge of the workpiece, and therefore it is guaranteed that a cutting line is straight, and then the cutting precision is guaranteed; and the operation convenience of the device is effectively improved.

The invention relates to the technical field of grinding devices, and discloses an inner star wheel ball groove grinding device which comprises an assembly table, a rotary supporting table and a lifting clamping arm are installed on the inner wall of the assembly table, a transverse movement control arm is installed at the top of the assembly table, and a grinding mechanism is installed at the output end of the transverse movement control arm. The grinding mechanism comprises a U-shaped fixing frame, the inner wall of the U-shaped fixing frame is rotationally sleeved with a first motor, the back of the U-shaped fixing frame is provided with the first motor, the output end of the first motor penetrates through the first motor to be connected with a rotating disc, a plurality of contact grooves are formed in the side wall of the rotating disc, and grinding contacts are slidably sleeved with the multiple contact grooves; the grinding mechanism is improved, the rotating disc and the multiple grinding contacts are arranged, the multiple grinding contacts slide and expand outwards under the rotating centrifugal force of the rotating disc, when the contact pressure between the grinding contacts and a grinding piece is too large, the grinding contacts are stressed to slide and contract, and therefore the grinding mechanism has the grinding pressure self-adaption characteristic; the polishing piece and the polishing mechanism are prevented from being damaged, and the yield is increased.

The invention relates to the technical field of flexure performance testing, in particular to a tensile and flexure-resistant performance testing device for an insulated cable. Comprising a base; the controller is mounted on the side surface of the base; the movable seat is connected to the base in a sliding manner; the rotating disc is rotationally connected to the moving seat; the air pump is mounted on the side surface of the movable seat; the fixed plates are symmetrically connected to the side surface of the rotating disc; and the fixed cylinders are symmetrically connected to the fixed plate, the fixed cylinders penetrate through the side face of the rotating disc, and through holes are formed in the fixed cylinders. Through the cooperation of the air pump, the fixed cylinder and the roller, an air diaphragm can be formed between the cable body and the roller, so that the cable can realize non-contact sliding with the roller during a deflection test, specifically, the air pump conveys compressed air to the fixed cylinder through the shunt pipe, and the compressed air is sprayed out through the through hole and the air outlet pipe, so that a dynamic air cushion can be formed; unexpected tensile load and surface abrasion caused by traditional roller friction can be avoided, and it is ensured that the test result only reflects the real bending fatigue performance of the cable.

The invention relates to a large-swing-angle heavy-load spherical hinge pulley mechanism and underwater test equipment, the large-swing-angle heavy-load spherical hinge pulley mechanism comprises a spherical hinge assembly, the spherical hinge assembly comprises a spherical hinge base and a ball head pressing plate, the spherical hinge base and the ball head pressing plate are mutually connected to jointly form a ball socket rotationally connected with a ball head rod, and the ball head rod comprises a ball head located in the ball socket; the shaft rod is connected with the ball head and extends out of the ball head pressing plate; the pulley assembly comprises a pulley base rotationally connected with the shaft rod, the end, away from the spherical hinge assembly, of the pulley base is fixedly connected with two parallel vertical plates arranged in a spaced mode, a pulley disc is rotationally connected between the two vertical plates through a pin shaft, the width of the vertical plates is larger than the height of the vertical plates, and the height of the vertical plates is larger than the diameter of the pulley disc. The pulley assembly freely rotates at multiple angles around the spherical hinge base and the spherical head pressing plate through the spherical head rod, so that the pulley assembly adjusts the posture along with the traction rope. And the contact sliding friction surface between the two sides or the top of the vertical plate and the traction rope is increased, so that self-adaptive rotation of the pulley assembly is corrected in a more labor-saving manner.

The utility model discloses a relay switch with an adjustable contact distance, which relates to the technical field of relay switches and comprises a relay component and a movable contact, the front side and the rear side of the bottom of the relay component are respectively provided with an adjusting seat, the top of each adjusting seat is connected with a protective shell, and the movable contact is slidably arranged at the middle section of each adjusting seat. A fixing bolt is installed at the joint of the adjusting base and the protective shell, and a communication line is connected between the adjusting base and the relay component. According to the relay switch with the adjustable contact distance, the adjusting bases are symmetrically arranged at the bottom of the relay component front and back, so that a proper number of movable contacts can be installed within a certain range according to needs, the distance between the movable contacts can be adjusted, and the use flexibility of the device is guaranteed; and the adjusting seat is matched with the fixing bolt for use, so that the protective shell and the adjusting seat can be connected and fixed, and good structural protection is provided for the relay component, so that the service life of the device is ensured.

A press-contact guide, a restraining guide, and a latching mechanism are provided between a housing of a device body and a cover. A restraining projection provided on the cover is inserted into an introduction opening to cause a press-contact projection to be pressed into contact with a press-contact slide part. In this state, the cover is slid in a latching-force-acting direction. Then, the cover moves with a restraining projection being restrained by the restraining guide and cause a projecting latch to latch into a receiving hole. When such a latched state is established, the cover and the housing go out of contact with each other at the press-contact guide and the restraining guide.

The invention relates to the technical field of signal forwarding equipment, in particular to a switch which comprises a bottom support transverse plate and two extrusion sliding plates slidably connected to the bottom support transverse plate, a bidirectional lead screw I is rotatably connected to the bottom support transverse plate, and the two ends of the bidirectional lead screw I are in threaded connection with the two extrusion sliding plates respectively. A plurality of hollowed-out sliding columns are slidably connected to the bottom support transverse plate, a switch body is placed on the hollowed-out sliding columns, the two ends of the switch body make contact with two extrusion sliding plates correspondingly, square support sliding rods are fixedly connected to the outer ends of the two extrusion sliding plates correspondingly, and contact sliding plates are slidably connected to the two ends of the two square support sliding rods correspondingly. The two extrusion sliding plates are rotationally connected with two-way lead screws II, the two ends of the two-way lead screws II are in threaded connection with four contact sliding plates respectively, the four contact sliding plates make contact with the switch body, and the two extrusion sliding plates are fixedly connected with lifting lead screws.

The utility model discloses an extrusion die for producing a gear-shaped heat-shrinkable sleeve, which relates to the technical field of forming dies and comprises an external die sleeve, a fixed plate fixed on a connecting frame, a spring fixed on the fixed plate, a movable plate fixed on the spring, a guide shaft connected with a guide groove, and a fixed block and a strip-shaped rod fixed on the forming die, a supporting block connected with the threaded rod is fixed to the annular plate. When sleeves of different models need to be extruded and a guide shaft is not arranged on an external die sleeve, a pulled connecting disc drives the guide shaft to enable a movable plate to compress a spring, meanwhile, an adjusting plate is rotated to enable a forming head to drive a connecting frame to rotate other structures on the connecting frame, the guide shaft is in contact with the front wall of the external die sleeve, and the connecting disc is loosened; the guide shaft is in contact sliding with the front wall of the external die sleeve until the guide shaft slides to be in contact with the guide groove, the guide shaft is inserted into the guide groove, and at the moment, the forming head is aligned with the external die sleeve; alignment connection of the positioning bolts and the positioning holes is facilitated, and the alignment efficiency is improved.

To provide a wiper blade rubber which is excellent in wiping property and durability.SOLUTION: There is provided a wiper blade rubber 10 in which the surface layer of the contact sliding part 121 that slides in contact with another member is composed of a graphite coat layer 121b, thickness of the graphite coat layer 121b is 3 μm or more and 7 μm or less, and arithmetic average height of the surface of the graphite coat layer 121b is 1.5 μm or less.SELECTED DRAWING: Figure 1

The utility model discloses a closed-loop non-contact slide rail truss for a Tan sheep processing workshop, which belongs to the technical field of Tan sheep processing and comprises two slide rail truss bodies. The balance weight plate is mounted in the Tan sheep processing workshop through bolts, and the balance weight plate is fixedly connected with the two sliding rail truss bodies through the adjusting and supporting mechanism; a receiving table for receiving the cut Tan sheep is arranged at the top end of the balance weight plate, a supporting frame is rotationally connected to the bottom end of the receiving table, a stabilizing frame is arranged below the supporting frame, a plurality of brake trundles are installed at the bottom end of the stabilizing frame, and a plurality of electric push rods with a telescopic function are connected between the stabilizing frame and the supporting frame; the top end of the receiving table is connected with four limiting blocks, the side faces of the two limiting blocks on one side are rotationally connected with limiting hollow plates through hinges, and movable plates with the extending and blocking functions are arranged in inner cavities of the limiting hollow plates. The closed-loop non-contact type sliding rail truss for the Tan sheep processing workshop can be adjusted in multiple aspects, and receiving and discharging are convenient.

The utility model discloses a self-opening structure of a casting pouring piece, which relates to the technical field of casting, and is characterized in that the inclined edge of a trapezoidal block is arranged, and the part, protruding out of a pouring measuring cup, of a plugging block is in contact sliding with the inclined edge of the trapezoidal block, so that a plugging plate rotationally connected with a fixed plate is driven to rotate, and the pouring measuring cup is automatically opened. And moreover, the pouring measuring cup does not need to be poured, so that the situation that the peripheral side wall of the measuring cup is stained with the pouring liquid due to pouring pouring is avoided.

The invention relates to the technical field of unmanned forklifts, and discloses an unmanned forklift head anti-collision protection mechanism which comprises an anti-collision shell, a lower supporting plate is fixedly installed on the inner side of the anti-collision shell, an upper supporting plate is fixedly installed on the forklift head, and the upper supporting plate is located above the lower supporting plate. A moving guide part, a collision detection part and a reset assembly are arranged between the lower supporting plate and the upper supporting plate, and a reset driving part is arranged at the top of the upper supporting plate. The rotating arm deflects in the fan-shaped groove, so that the rotating shaft is driven to rotate, the embedded disc is driven to rotate in the sealing cover, the contact slides on the arc-shaped carbon rod, and the resistance of the arc-shaped carbon rod connected to a circuit is changed, and therefore whether the rotating shaft rotates or not is monitored by monitoring the resistance of the arc-shaped carbon rod, and then whether the anti-collision shell collides or not is monitored. And whether the anti-collision shell is collided or not is monitored together with the distance sensor, so that the detection is more reliable.

The utility model relates to the related technical field of mechanical clamping jaws, in particular to a sliding mechanical clamping jaw which comprises a connecting plate, an installation block is fixedly installed on the surface of one side of the connecting plate, a first air cylinder is fixedly installed at one end of the installation block, and side plates are fixedly connected to the surfaces of the two sides of the connecting plate. A sliding block is fixedly installed on the surface of one side of the side plate, and one end of the sliding block is connected with a sliding rail. According to the sliding mechanical clamping jaw, through the arrangement of the first air cylinders, the middle-position check blocks, the first clamping jaw bodies, the second air cylinders, the second clamping jaw bodies and the second guide blocks, during clamping, the two first air cylinders stretch out and abut against the middle-position check blocks, when the first clamping jaw bodies and the second clamping jaw bodies descend to be close to a grabbing target, the first air cylinders retract, and the first clamping jaw bodies and the second clamping jaw bodies are in a slidable state; and if the grabbed target touches the first guide block or the second guide block, the first clamping jaw or the second clamping jaw can be pushed to slide in the direction away from the currently contacted sliding block, so that the grabbed target falls between the first clamping jaw and the second clamping jaw.

The utility model discloses a refrigeration plant relates to refrigeration plant technical field, wherein, refrigeration plant includes box, drawer and sliding fit structure, and the box has the inner bag of can hold article, and the drawer can be installed in the inner bag along the fore and aft activity, and the sliding fit structure includes the sliding part and the cooperation part of drawer and inner bag's separate setting, and the sliding part is cooperated with the cooperation part, to make the drawer and inner bag can form line contact sliding, through setting the inner bag, to install the drawer, and the drawer can be set up in the inner bag along the fore and aft activity, to classify and store the article in the inner bag, and through setting the sliding part and the cooperation part simultaneously, to make the drawer in the inner bag along the fore and aft sliding at least partial can form line contact, relative to the sliding of surface surface contact, line contact sliding has greatly reduced the contact area of drawer and inner bag, can greatly reduce the sliding friction between drawer and inner bag, thereby has solved the problem that the existing no slide rail drawer is larger when pulling and pushing friction.

The utility model relates to door and window technical field discloses sound insulation and heat insulation integrated casement window, including window frame, the sliding assembly of casement is equipped with in window frame, and the window frame includes a frame, and the upper and lower two ends of the frame inboard wall each fixedly connected with a first limit frame strip on the front and back two sides, and the upper and lower two ends of the frame inboard wall each fixedly connected with a second limit frame strip in the middle part. The utility model discloses the assembly recess is provided with on the upper and lower two ends of casement, and a plurality of gyro wheels are rotatably assembled in the assembly recess, and the inner wall of the frame of window frame is contacted by the plurality of gyro wheels, which reduces the contact area of the junction of casement and window frame, and because the gyro wheel is configured to move and guide, when the casement is pushed in the window frame, even if the dust and dirt accumulated in the window frame groove, compared with the surface contact sliding connection mode that the multi-surface contact between the casement and the window frame is adopted, the wear of the junction of the casement and the window frame is still smaller, and the pushing movement of the casement in the window frame is still relatively smooth.

To provide hair scissors in which the blades slide against each other, thereby reducing frictional resistance at the pivot point and improving operability and durability. [Solution] In a hair scissors in which a first blade 1 and a second blade 2 are rotatably connected, a recess is formed on the contact sliding surface of one of the blades, and a low-friction member 3 is fixed in the recess. The surface of the low-friction member is positioned to be substantially flush with the surface of the blade, and the other blade performs an opening and closing operation while sliding against the low-friction member.

The present invention discloses a telescopic connection assembly on a steel anti-collision guardrail of a bridge, comprising beams on both sides of an expansion joint, a connecting sleeve, a rolling assembly and anchor bolts, wherein the beams comprise a fixed beam and a movable beam, one end of the connecting sleeve is fixed in the fixed beam by an anchor bolt, and the other end of the connecting sleeve extends into the movable beam; the rolling assembly is fixedly mounted at the end of the connecting sleeve and can roll in the movable beam. The present invention changes conventional contact sliding into rolling movement, greatly reduces component friction during use, improves component durability, avoids the use of oblong holes in structure, and the telescopic connection assembly has no open holes, thereby avoiding the risk of connection assembly failure caused by foreign body intrusion; it has good three-way displacement function, strong anti-collision capability, good durability, neat and beautiful appearance, and can be widely used in large-span and long-jointed bridge structures.

The invention provides a multi-state fast adjusting switch, a control method, a control system, equipment and a medium. The multi-state fast adjusting switch comprises at least four static contacts arranged in an annular array, two moving contact mechanisms sliding independently and a control device connected with the two moving contact mechanisms. Each moving contact mechanism comprises at least two moving contact sliding units which are independently connected and disconnected; the number of the moving contact sliding units in each moving contact mechanism is determined according to the number of the static contacts and a set rule; through the matching of the number of the static contacts and the number of the moving contact sliding units, the independent movement characteristic of the moving contact mechanism and the characteristic that all the static contacts are arranged in an annular array, the moving contact mechanism can be in contact with the static contact of any potential in one-step action, and the static contacts of multiple potentials are combined and connected in pairs, so that the stability of the moving contact mechanism is improved. According to the utility model, cooperation among a plurality of input ends is realized, and at least 13 voltage regulation gears are formed, so that one-step switching between variable step voltage regulation and any voltage regulation gear is realized.

The present invention discloses a size inspection system for stainless steel pipe production, which relates to the technical field of stainless steel pipe detection. In the present invention, the outer diameter detection roller is pressed down and cooperates with the detection support roller to obtain the outer diameter of the steel pipe by using the resistance strip and the contact sliding needle; the inner diameter and wall thickness are measured by forming a closed loop with the adjustable conductive contact roller. The axes of all rollers are perpendicular to the movement direction of the steel pipe, ensuring accurate on-line size detection during continuous production, and can be adapted to various specifications of steel pipes through rapid replacement and structural adjustment, greatly improving the detection efficiency and quality.

The present invention discloses a two-way conductive telescopic tube for a vacuum cleaner, which comprises a telescopic rod. The telescopic rod includes an intermediate connecting sleeve. A lower end of the intermediate connecting sleeve is fixedly connected to an outer tube, an upper end of the intermediate connecting sleeve is connected to an inner tube, an upper end of the inner tube is connected to an upper connecting head, and a lower end of the outer tube is connected to a lower connecting head. A pin in the upper connecting head is electrically connected to an upper end of a conductive element through a wire, and a lower end of the conductive element is electrically connected to a jack socket of the lower connecting head through a wire, so as to realize the electrical connection between the pin and the jack socket. The structure is simple and the construction is clear and easy to understand. It can not only realize the telescopic movement between the inner tube and the outer tube, but also ensure the uninterrupted conductive line, which is better than the existing sliding contact conductive mode on the market. There is no wear caused by the contact sliding between the conductive parts, thus improving the service life; it solves the problem of current breakpoints caused by contact sliding, is convenient to use, simple to operate, and has a long service life, and is worthy of promotion.

The utility model discloses a contact type sliding block measuring device, and particularly relates to the technical field of measuring devices, which comprises a base, a first gauge stand fixedly connected to one side of the base, a first dial indicator mounted in the first gauge stand, a measuring instrument stand fixedly connected to the top of the base, a fixed measuring head fixedly connected to the top of the measuring instrument stand, and a sliding chute formed in the top of the base. A measuring head seat is slidably connected in the sliding groove, a measured block is fixedly connected to the top of the measuring head seat, a movable measuring head is fixedly connected to the top of the measuring head seat, a to-be-measured sliding block is slidably connected to the outer portion of the movable measuring head and the outer portion of the fixed measuring head, and probe balls are embedded in the sides, away from each other, of the movable measuring head and the fixed measuring head. A double-thread screw is movably sleeved with the measuring instrument base, a screw base is fixedly connected to the outer side of the measuring instrument base, the other end of the double-thread screw is rotationally sleeved with the screw base and rotationally connected with an eccentric head, and a rotating rod is rotationally connected with the interior of the screw base. According to the utility model, the size of the to-be-measured slide block can be conveniently, rapidly and accurately measured, and the inspection efficiency is improved.

The invention relates to the technical field of concrete anti-seismic tests, and discloses a concrete filled steel tube anti-seismic performance test device and a test method.The concrete filled steel tube anti-seismic performance test device comprises a pressure applying piece, the pressure applying piece comprises a rotating rod rotationally connected to the inner wall of a mounting groove, a folding rod is rotationally connected to the bottom of the rotating rod, and a first sliding frame is slidably connected to the inner wall of the folding rod; when an electric telescopic rod shrinks, a rotating rod drives a part of an adaptive mechanism to rotate clockwise by taking a connecting point as a center, and along with downward rotation of the rotating rod, a folding rod pushes a sliding frame I to move towards a placement groove along the inner wall of a mounting groove, so that the sliding frame I drives a contact sliding plate I to be in contact with the side wall of the concrete-filled steel tube test piece; along with pulling of the electric telescopic rod, the hydraulic box drives the second contact sliding plate to make contact with the top of the outer wall of the concrete-filled steel tube test piece, the procedure of pouring a bearing platform needed by a conventional test piece is changed, the shaking force of the vibration disc can be transmitted to the side wall of the test piece, and the accuracy of anti-seismic measurement is improved.

The invention discloses a size inspection system for stainless steel pipe production, and relates to the technical field of stainless steel pipe detection. According to the invention, the external diameter of the steel pipe is obtained through cooperation of the pressing external diameter detection roller and the detection support roller by using the resistor strip and the contact sliding needle; and a closed loop is formed by the voltage-adjustable conductive contact roller to measure the inner diameter and the wall thickness. All the roller axes are perpendicular to the moving direction of the steel pipe, it is ensured that accurate online size detection is achieved in continuous production, the device can adapt to steel pipes of various specifications through rapid replacement and structure adjustment, and the detection efficiency and quality are greatly improved.