47results about How to "Realize free sliding" patented technology

The invention relates to a device for cutting a steel intermediate bend intersecting line. A cutting torch longitudinal driving mechanism drives a cutting torch to move in the length direction of a bend, a rotary slider arranged on a circular guide rail slides along the circular guide rail, the cutting torch connected with the rotary slider is dragged to enable the cutting torch to rotate in the axis direction of the bend, and a cutting torch vertical driving mechanism drives the cutting torch to move in the radius direction of the bend. The cutting torch longitudinal rotary mechanism drags the cutting torch to swing around the axis direction of a parallel bend, and the motion of the cutting torch in the bend axis direction, the rotating motion of the cutting torch in the bend axis direction, the motion of the cutting torch in the bend radius direction, the swinging of the cutting torch in the parallel bend axis direction and the swinging of the cutting torch in the direction perpendicular to the bend axis direction are combined to form a combined motion of the cutting torch cutting the bend and simultaneously cutting a welding groove. The device for cutting the steel intermediate bend intersecting line can cut the intersecting line and the welding groove on the bend.

The invention relates to a leg curl training device. The leg curl training device comprises a main frame, a connecting rod structure, a foot curling frame, a pneumatic box and a gas storage tank. Theconnecting rod structure comprises multiple connecting rods which are rotationally connected, the first end of the first connecting rod in the multiple connecting rods is rotationally fixed to the bottom of the main frame, and any point, except the two endpoints, of the last connecting rod in the multiple connecting rods is rotationally fixed to the rear end of the main frame; the foot curling frame is connected with one end of the last connecting rod; the pneumatic box is provided with an air cylinder, the air cylinder comprises a piston and a piston rod, the air cylinder is fixed in the manner of being capable of rotating by a certain angle in the plane of the length direction of the air cylinder, one end of the piston rod is connected with the piston, and the other end of the piston rodis rotationally coupled to any point, except the first end, of the first connecting rod. The gas storage tank is used for storing compressed gas and connected with the air cylinder to supply compressed gas to the air cylinder.

The invention discloses an adjustable machining workbench. The adjustable machining workbench comprises a machining platform and a pair of supporting mechanisms installed at the bottom end of the machining platform, the machining platform comprises an operation panel, a rotating mechanism is arranged at the bottom end of the operation panel, each supporting mechanism comprises a supporting column, an arc plate is arranged at the top end of each supporting column, a driving mechanism is arranged on the side face of the arc plate, a traction mechanism is arranged at the top end of the arc plate, and the traction mechanism is connected with the bottom end of the operation panel. By arranging the rotating mechanism and the supporting mechanism, transverse angle adjustment of the operation panel is achieved, vertical angle adjustment of the operation panel is achieved through the supporting mechanism, free and flexible clamping work of the operation panel to a machined part is improved so as to adapt to machining work of different positions of the machined part, and the machining efficiency is improved.

The invention discloses a dual-screen computer display. The display comprises a first display screen, a supporting seat arranged at the lower end of the first display screen, and a second display screen connected with the first display screen, wherein two slide chutes A in the horizontal direction are formed in the front face of the first display screen; two slide blocks are arranged on the back of the second display screen; the second display screen can slide on the first display screen left and right due to matching of the slide blocks and the slide chutes A; and the second display screen is separated into a slide module and a rotation module, hinges are arranged at corners of the slide module, the slide module is movably connected with the rotation module through the hinges, and the slide blocks are positioned on the slide module. The dual-screen computer display has the advantages that the second display screen can slide freely and can be folded if not required, so that space is not occupied; and the angle of the second display screen can be adjusted by rotating, so that two screens can be watched conveniently at the same time. Furthermore, the dual-screen computer display is reasonable in integral structure, convenient to operate, and long in service life.

The invention relates to a constant-resistance pneumatic box. The constant-resistance pneumatic box comprises an air cylinder, a gas storage tank, two guide rails, a pull rope and an eccentric wheel,wherein the air cylinder comprises a piston and a piston rod, the air cylinder is fixed in the manner of being capable of rotating by a certain angle in the plane of the length direction of the air cylinder, one end of the piston rod is connected with the piston, and the other end of the piston rod is connected with the eccentric wheel; the gas storage tank is used for storing compressed gas and connected with the air cylinder to supply compressed gas to the air cylinder; the two guide rails are used for guiding the eccentric wheel; the pull rope is used for transmitting the pull force of a user to the eccentric wheel; the pull rope is wound around the eccentric wheel on the side away from the air cylinder, the eccentric wheel is arranged between the two guide rails so that the eccentric wheel can slide in the two guide rails under the pull of the pull rope, and the piston rod is connected to the non-central position of the eccentric wheel, so that the angle between the piston rod andthe pull rope becomes large in the sliding process of the eccentric wheel. Through the pneumatic box, constant resistance output can be achieved.

The invention discloses a quarantine plant disease specimen collection device and a use method thereof. The quarantine plant disease specimen collection device comprises a box body with an opening in one side, wherein a sampling fixing base is rotationally connected in the box body through a center rod, a plurality of sampling boxes are connected in the sampling fixing base, and the center rod penetrates out of the box body and is rotationally connected with the box body; and the box body is further fixedly connected with a fixing plate used for covering the sampling box, the fixing plate has a through hole matched with the sampling box, the sampling box is arranged below the through hole, the through hole is provided with a sliding cover connected with the fixing plate in a sliding mode, the sliding cover is connected with the fixing plate through a second spring, and the upper portion of the through hole is connected with a cutter through a driving mechanism. The quarantine plant disease specimen collection device is easy to operate and safe to use, plant samples are collected after plants are clamped, meanwhile, the device can be suitable for storage and collection of various plant samples, the device is very suitable for national biosafety monitoring, crop disease investigation and plant quarantine scientific research sampling work in universities and colleges, and the device has high popularization value.

The invention discloses an anti-collapse device for geological exploration and method thereof. The collapse prevention device comprises a square frame, wherein supporting mechanisms are arranged on the left side, the right side, the front side, the rear side, the left side and the right side of the inner wall of the square frame, collapse prevention plates are arranged on the front side, the rear side, the left side and the right side of the square frame, and one ends of two rotating rods are rotationally connected with the inner sides of the collapse prevention plates. The invention relates to the technical field of geological exploration. According to the anti-collapse device for geological exploration and the method thereof, by arranging the supporting mechanism, the function of automatically supporting the anti-collapse plate is achieved. A supporting force is added on the basis that the anti-collapse plate is fixed in a nailing mode, the anti-collapse plate is firmer, free adjustment can be conducted according to the size of the well drilling caliber, and by arranging a safety locking mechanism, the moving block is limited, so that a situation that when the inner wall of a drilling well extrudes the rotating rods due to the reverse acting force, the two rotating rods drive the two moving blocks to extrude threads on the reverse lead screw is prevented, and therefore, abrasion of the moving block to the thread on the reverse lead screw is reduced, and the service life of the reverse lead screw is prolonged.

The invention discloses a crawler-type loading chassis, a horizontal stair climbing machine and a self-adaptive climbing method; the crawler-type loading chassis comprises an objective table, the two sides of the objective table are hinged to a front crawler belt assembly and a rear crawler belt assembly through a front rotating rod and a rear rotating rod respectively, the front crawler belt assembly comprises a front crawler belt section and a rear crawler belt section, and a first included angle is formed between the rear crawler belt section and the front crawler belt section; a rotating shaft is arranged at the rear end of the front track assembly or close to the rear end, and meanwhile, the rotating shaft is arranged at the front end of the rear track assembly or close to the front section; the front crawler belt assembly and/or the rear crawler belt assembly are/is hinged to the objective table through a telescopic mechanism. And a locking mechanism is used for locking the telescopic mechanism. The stair climbing machine can bear large load capacity, the objective table is always parallel to the ground in the stair climbing process, the gravity center of the objective table is pressed at the upper end of the objective table in the stair climbing process, and controllability, safety and working efficiency are higher.

The invention discloses a coal mine underground ventilation structure convenient to fix, and relates to the technical field of coal mine ventilation. The coal mine underground ventilation structure comprises a first rod body, a second rod body, a third rod body and a fourth rod body; one end of the second rod body is slidably connected into one end of the first rod body in a sleeved manner, one end of the third rod body is slidably connected into one end of the fourth rod body in a sleeved manner, and the second rod body is located at the upper end of the third rod body and is perpendicular tothe third rod body; a clamp is further arranged on a connecting body of the third rod body and the fourth rod body in a matched manner; and first inserting grooves are formed in the four corners of the end face, close to the second rod body, of the first rod body. According to the coal mine underground ventilation structure, through the arrangement of a supporting rod, the first rod body, the second rod body, the third rod body, the fourth rod body, a second limiting strip, a third limiting strip, a first clamping plate, a second clamping plate, an inserting column and a connecting rod, the coal mine underground ventilation structure is convenient to install and high in safety in the using process, rapid and efficient ventilation can be achieved by the coal mine underground ventilation structure, and the coal mine underground ventilation structure is high in applicability; and meanwhile, the coal mine underground ventilation structure is good in folding and storage effect and convenient to transport.

The invention discloses a shockproof instrument and meter device, which, in the structure, comprises an instrument and meter body, cooling holes, a data connection hole, an operation panel, a digitaldisplay screen, a control button, a shockproof window plate, a push and pull handle, a pull turning device, a shockproof multipurpose box, a lock catch, C-type slide rails and T-type limiting pieces,wherein the cooling holes are uniformly and equidistantly arranged on surfaces of two sides of the instrument and meter body; the cooling holes and the instrument and meter body present an integratedforming structure; and the data connection hole is embedded in the surface at the left side of the instrument and meter body. The shockproof instrument and meter device has the beneficial effects thatas the pull turning device is arranged, separation between the shockproof device and the instrument and meter is realized through pull and turning, and accuracy of the instrument and meter is ensured; and multi-functionality of the shockproof device can also be realized, the device can be used as a shockproof box and can also be used as a shockproof seat, the accuracy of the shockproof instrumentand meter device is effectively improved, and the flexible shockproof effects are also realized.

The invention discloses a solid solution treatment device for U-shaped heat exchange tubes. The device comprises a base, a power box, two sliding seats, a cooling pool, pneumatic opening and closing mechanisms, carrier plates and clamping and heating mechanisms, wherein the power box is fixedly installed at a position, close to one side, of the center of the upper end face of the base; the two sliding seats are slidably installed on the base, and are identical in specification, and a connecting wire between the two sliding seats is parallel with the power box; the cooling pool is arranged on one side of the base; the carrier plates are fixedly installed on tops of the two pneumatic opening and closing mechanisms, the sliding seats supporting the two clamping seats can slide freely on the base through balls, the U-shaped heat exchange tubes of different specifications can be conveniently placed in clamping grooves by adjusting the relative distance between two installation points, so that manual operation is avoided, operation steps are reduced, operation safety is increased, and the problem that safety accidents are easily caused because lack of relevant locking mechanisms betweenthe traditional U-shaped heat exchange tube clamping mechanisms and loose installation of the U-shaped tubes is solved.

The invention discloses a sliding cover desktop which is characterized in that two sliding desktops are arranged above a desk hole, sliding grooves are respectively formed below the sliding desktops, handles and pulley wheels are respectively arranged on two sides of the desktops, and rubber pads are respectively arranged below desk legs. Through the arrangement, free sliding of the desktops is achieved, and a student is enabled to take books and articles conveniently, wherein the books and articles are in the desk hole.

The invention belongs to the technical field of electric appliances, and provides a copying machine with dehumidifying function. The copying machine comprises a shell and a power supply arranged in the shell; the lower part of the shell is provided with a cavity for holding a dehumidifier connected with the power supply; the cavity is inside provided with slide groove groups which are at a same horizontal line and are parallel; and two sides of the dehumidifier are provided with slide limbs of slide block groups matched with the slide groove groups. The copying machine possesses the dehumidifying function. By preferably selecting the slide block groups, the slide limb groups, a control button, and blind orifices designed at the front end of the slide groove groups, the back-forth free slide of the dehumidifier in the cavity is realized, also the dehumidifier is prevented from sliding out of the cavity, and also the working state of the dehumidifier can be controlled.

The invention relates to a movable safety grille which relates to the technical field of safety protection in buildings. The purpose of the invention is to provide a movable safety grille which can befreely opened and closed and has a simple structure. The grille comprises a square grille frame and sliders, wherein the grille frame comprises a first guide rail and a second guide rail oppositely arranged in a horizontal direction, and a first fixed end and a second fixed end oppositely arranged in a vertical direction. Each slider comprises a connecting rod, a first lifting wheel connected with the top of the connecting rod and a second lifting wheel connected with the bottom of the connecting rod, wherein the first lifting wheel is used for being arranged on the first guide rail in a sliding manner, and the second lifting wheel is used for being arranged on the second guide rail in a sliding manner. Two adjacent sliders are connected to each other via an adjustable connector. By usingthe first guide rail and the second guide rail as slideways, the grille is simple in operation, free in opening and closing, high in use flexibility, and simple in structure.