16results about How to "Prevent free movement" patented technology

The invention relates to a unilateral speed limiting type linkage device. Comprising an unfolding mechanism, a rotating shaft rope wheel assembly, a root hinge fixing rope wheel, an inter-rod hinge fixing rope wheel, an inter-rod hinge rope collecting wheel assembly, a rope collecting wheel trigger arm, a deflector rod, a small ball, a ball blocking frame, a rope blocking ring assembly, an upper stretching rod linkage rope, a lower supporting rod linkage rope, a speed limiting driving source, a speed limiting driving source output shaft and a root rope guide wheel. Linkage release of the rotating shaft rope wheel assembly can be achieved after unfolding is finished, and then the linkage state and the recovery state of the upper stretching rod linkage rope wheel are switched; the space unfolding mechanism is simple in structure and light in weight, and speed-limiting unfolding of the space unfolding mechanism can be controlled by controlling rotation of the rotating shaft rope wheel assembly through the speed-limiting driving source.

The utility model discloses a connecting piece for a truss reinforced concrete laminated slab. The connecting piece comprises an outer box, a first through hole is formed in the center of a top plate of the outer box; a second through hole is formed in the center of a bottom plate; the moving block comprises a horizontal part and a vertical part, the horizontal part is arranged above the top plate of the outer box, and the vertical part is vertically and movably inserted into the first through hole; the two first connecting plates are symmetrically arranged on the two sides of the lower end of the vertical part. The middle of the first rotary extrusion mechanism is rotationally connected with the inner wall of the end plate of the outer box, one end of the first rotary extrusion mechanism is rotationally connected with the extending end of the first connecting plate, and the other end of the first rotary extrusion mechanism penetrates through the side plate of the outer box and then abuts against the side wall of the prefabricated plate body; the threaded rod is vertically and movably inserted into the second through hole; the fixing nut is matched and sleeved on the outer side of the lower end extension part of the threaded rod; according to the utility model, the effect of limiting the prefabricated slab body in the horizontal direction is achieved, the situation that the horizontal position of the laminated slab deviates in the pouring process is effectively avoided, and the positioning precision of the laminated slab is effectively improved.

The present invention provides a gear circulation chamfering device, which relates to the technical field of gear manufacturing, comprising a base, connecting arms are fixedly installed on both sides of the upper end of the base, a support platform is arranged between the two connecting arms, and a circular plate is arranged above the support platform, and the circular plate is rotated by starting servo motor 2 in the support platform, and the gear workpiece is driven to rotate by the rotation of the circular plate, and the relative position of the tooth groove of the gear workpiece and the movable block is changed by the rotation of the gear workpiece, so that all the tooth grooves of the upper end of the gear workpiece can be chamfered and polished by the movable block, and after the chamfering and polishing of the tooth grooves of the upper end of the gear workpiece is completed, the gear workpiece is flipped by a flipping drive assembly, so as to facilitate the chamfering and polishing of the tooth grooves at the bottom end of the gear workpiece, and there is no need for staff to release and clamp the gear workpiece with a clamping rod and a spring, thereby eliminating cumbersome operation steps and improving the efficiency of chamfering and polishing the gear workpiece.

The utility model belongs to the field of innovative development experiment equipment, and provides a portable experiment box capable of dissipating heat, which comprises a box body, a box cover, a lock catch structure and a panel, a plurality of case modules are arranged on the panel, a handle is arranged outside the box body, a pair of cylindrical surface grooves are arranged on two sides of the box body, roller shafts are arranged in the cylindrical surface grooves, and the box cover is arranged on the box body. A brake plate rotationally connected with the box body is arranged on the rolling side of the roller shaft, an inner box is arranged in the box body and is in a concentric-square shape, a concentric-square-shaped countersink heat dissipation cavity is formed in the top of the inner box, a plurality of through holes are formed in the top face of the countersink heat dissipation cavity and used for installing screws for connecting the panel and the inner box, and a plurality of heat dissipation strip holes are formed in the four edges of the bottom face of the inner box. And four positioning columns matched with the side edges of the inner box are arranged on the inner bottom surface of the box body. The device is reasonable in design, simple in structure, convenient to disassemble, assemble and clean, good in heat dissipation performance, good in portability, convenient to move, adjust and brake, high in utilization rate and suitable for large-scale popularization.

The application discloses a nerve probe, which comprises a needle handle, a probe part, a wire part and a plug. One end of the probe part is embedded in one end of the needle handle. One end of the wire part is electrically connected with the end of the probe part in the needle handle. The plug is electrically connected with the other end of the wire part. The wire arrangement device is connected to the other end of the needle handle, and the other end of the wire part can pass through the wire arrangement device. The first clamping groove is arranged in the needle handle, and the wire part is clamped in the first clamping groove. The wire part is clamped in the first clamping groove, the position of the wire part is fixed, the wire part is prevented from being stacked and bent in the needle handle, the wire arrangement device is arranged to support the wire part after the wire part leaves the needle handle, the wire part is prevented from being bent after leaving the needle handle, the problem that the electric signal is disconnected after the wire part is bent is prevented, and the stability and accuracy of the nerve probe are improved.

The present invention discloses a portable dust isolation system, including a top shielding frame, wherein an observation assembly is fixedly connected in the middle of the top of the top shielding frame, a first shading curtain is movably connected to the right side of the inner cavity of the window, an adapter block is fixedly connected to the back of the side shielding frame, a second shading curtain is symmetrically slidably connected to the left and right sides of the bottom of the slide rail, baffles are symmetrically and movably connected in the inner cavities of two ventilation slots, a limiting assembly is symmetrically fixedly connected in the middle of the tops of the two baffles, and a bottom shielding frame is movably connected to the bottom of the top shielding frame. The portable dust isolation system described in the present invention can adjust the working position at any time according to the progress of the work, and has the advantages of dust isolation, sound insulation, and light blocking, and is portable, can temporarily close the working area, and isolate harmful elements from the outside world, thereby achieving the purpose of reducing environmental pollution and reducing exposure symptoms, and also has the function of implementing lighting and ventilation in the shielded space.

The utility model discloses a table type water purifying and drinking machine which comprises a machine shell with a containing cavity, an installation support arranged in the containing cavity and a top plate arranged on the top of the machine shell, an installation hole located above the installation support is formed in the top plate, a guide ring is further arranged on the top plate, and the guide ring penetrates through the installation hole to extend towards the installation support. The filter element is mounted on the mounting bracket through the mounting hole. The filter element penetrating through the mounting hole is guided through the guide ring, the filter element is guided to vertically move towards the filter element mounting position on the mounting bracket, the filter element is prevented from inclining or horizontally moving, and the guide ring penetrates through the mounting hole and extends towards the mounting bracket, so that a gap between the bottom of the top plate and the top of the mounting bracket can be filled; the gap between the filter element and the filter element is prevented from being too large to generate segment difference, so that the end part of the filter element is prevented from being clamped in the gap in the mounting process to cause assembly blockage, the mounting difficulty of the filter element is reduced, and the mounting is smoother when the filter element is replaced by a user.

The invention provides a safe distance monitoring device for preventing an overhead line from external damage of an operation vehicle, and belongs to the technical field of monitoring and alarming devices for preventing external damage of power transmission lines, and the safe distance monitoring device comprises an opening and closing ring component, a displacement reference component, a slip ring inner support assembly, a fixed ring inner support assembly, a double-lock component, a movable monitoring assembly and a receiving and alarming unit, a closed whole circle structure can be formed, an open type structure can also be formed, a bridging effect is achieved through the turnover gap bridge inserting piece, the slip ring tooth body, the gap bridge tooth body and the fixed ring tooth body form a closed loop path, the slip ring side groove, the gap bridge side groove, the guide side groove and the fixed ring side groove form a closed loop path, installation is convenient, and the service life of the slip ring is prolonged. The movable monitoring assembly can form surrounding dynamic monitoring, and overhead lines in the surrounding environment can be monitored more accurately; and meanwhile, the sliding ring inner supporting assembly, the fixed ring inner supporting assembly and the double-lock component are used in a matched mode, and the opening and closing ring component and the displacement reference component can form a stable circular ring installation structure.

A power transmission bus is installed on the side wall of a supporting frame, the two sides of the supporting frame are fixedly installed on an installation frame on the inner side wall of a wind tower through bolts, a first sliding groove is formed in the side wall of the supporting frame in a penetrating mode, and a strip-shaped rack is fixedly connected to the bottom face of the first sliding groove; a plurality of mounting parts are slidably connected into the first sliding grooves, each mounting part comprises a clamping part, a sliding part, a limiting part, a switch part, a mounting frame and a first arc-shaped plate, and the mounting parts capable of transversely moving are mounted on the supporting frame, so that the transverse position of the power transmission bus can be adjusted according to the actual mounting position; and the transverse adjustment is limited through the limiting component and the switch component, so that the power transmission bus is prevented from freely moving on the clamping device, the convenience of mounting and adjusting the power transmission bus by the clamping device is improved, and the position of the power transmission bus in the wind power generation tower is conveniently arranged.

The utility model discloses an anti-explosion zipper, which relates to the technical field of zippers and solves the problems that the conventional zipper is easy to burst due to external force, the use is influenced and the anti-theft effect is poor, the anti-explosion zipper comprises a cloth belt and a puller arranged on the cloth belt, the outer side of the cloth belt is fixedly connected with first connecting cloth, and the first connecting cloth is fixedly connected with the zipper. The outer side of the first connecting cloth is fixedly connected with a plurality of second connecting cloth, the sides, close to the cloth belt, of the second connecting cloth and the sides, close to the second connecting cloth, of the cloth belt are fixedly connected with magnets which are connected in a matched mode, and the side, close to the magnets, of the outer side of the pull head is fixedly connected with a partition plate. The two sides of the cloth belt can be well connected through the first connecting cloth, the second connecting cloth and the magnet so that teeth can be effectively prevented from being pressed and exploded, meanwhile, the lock plate is arranged on the cloth belt and used in cooperation with the pull piece, the pull head can be prevented from freely moving, a certain anti-theft effect can be achieved when the anti-theft zipper is used on a luggage, and the use effect is good.

The utility model discloses an advanced ceramic bearing submersible mixer which comprises a bearing, an inner ring arranged in the middle inside the bearing, a bearing shell arranged on the outer side of the inner ring, an outer ring arranged inside the bearing shell, rolling shafts arranged on the upper side and the lower side of the outer ring in an annular array mode respectively, and baffle rings arranged on the upper side and the lower side of the bearing shell respectively. Heat dissipation holes are formed in the outer side of the inner ring in an array mode, loads are evenly distributed to the rolling shaft through the outer ring, in this way, the load bearing capacity of the bearing can be improved, the bearing capacity of the bearing can be improved, the service life of the bearing can be prolonged, and after the rolling shaft is embedded into the outer ring, a more stable structure and better fixity can be provided; the baffle ring can prevent the bearing from freely moving in the axial direction due to external force or other factors, the heat dissipation holes are formed in the outer side of the inner ring, the surface area making contact with external air can be increased, the heat dissipation efficiency of heat can be improved, and the bearing of the ceramic structure can reduce friction and abrasion, reduce energy loss and prolong the service life of the bearing.

The utility model belongs to the technical field of cup lids, and particularly relates to a rotary opening structure of a cup lid, which comprises a lid body connected with a cup body, a drinking channel is arranged on the lid body, a control piece and an elastic piece are movably arranged on the lid body, a sealing piece is arranged on the control piece, and the elastic piece drives the control piece to reset and enables the sealing piece to seal the drinking channel. The control part is rotationally arranged on the cover body, a spiral first driving surface is arranged on the control part, the sealing part comprises a mounting seat and a sealing gasket arranged on the mounting seat, the mounting seat is arranged on the cover body in a sliding manner, and a driving part matched with the first driving surface is arranged on the mounting seat; the control piece is controlled to rotate, the first driving face and the driving part slide relatively and drive the sealing piece to move, and therefore the sealing gasket is made to be far away from the drinking water channel, and the rotary opening structure of the cup lid is simple in structure and convenient to use.

The utility model relates to a detachable culture shelf for plant tissue, which comprises a shelf body, trays, clamping mechanisms and a clamping mechanism, the inside of the shelf body is divided into a plurality of layers of areas by a plurality of partition plates, each layer of area corresponds to one clamping mechanism, one U-shaped tray can be placed in each layer of area, the trays can be detachably connected with the shelf body through the clamping mechanisms, and the clamping mechanism is arranged on the shelf body. A plurality of clamping mechanisms are uniformly and fixedly arranged on each tray and are used for clamping and fixing the tissue culture bottles. Through the design of the clamping mechanism, the tray can be prevented from moving freely, the tray can be placed stably, the tray can be disassembled or installed quickly, and the tray can be checked, maintained and replaced conveniently; through the design of the clamping mechanism, the tissue culture bottles with different sizes can be clamped and fixed, so that the tissue culture bottles are placed more stably, the tissue culture bottles are also convenient to replace and check, and the practicability is high.

The utility model discloses a folding type double-screen display and control console, which comprises a display and control console body and a display screen, the display screen is detachably connected with the display and control console body through a mounting piece, and the display and control console body is respectively connected with a plug-in box and an office platform which are arranged in the display and control console body through a first sliding assembly and a second sliding assembly; the display screen comprises a first display screen and a second display screen, the mounting piece comprises a first damping rotating shaft arranged on the first display screen, a second damping rotating shaft arranged on the second display screen and a damping rotating shaft seat detachably connected to the upper surface of the display and control console body, and the first damping rotating shaft and the second damping rotating shaft are hinged to the damping rotating shaft seat. According to the utility model, the double display screens are arranged, so that display of the display screens can be quickly switched in a non-stop state; the angle of the single display screen and the folding angle of the double display screens are adjusted by arranging the damping rotating shaft and the damping rotating shaft seat, and the watching angle requirements of people with different heights in different states are met.

The utility model discloses an inclined shaft car catching device, including the lifting frame and be used for lifting the first steel wire rope of lifting frame, still include support, telescopic cylinder, baffle, angle steel stand and second steel wire rope. Lifting frame is walked up and down along angle steel stand through gyro wheel. The cylinder body of telescopic cylinder is fixed on the support, and its piston rod end installs the movable pulley, still is installed with the trolley wheel between located telescopic cylinder and lifting frame on the support. One end of first steel wire rope is fixedly connected with the support, and the other end is fixedly connected with lifting frame after passing movable pulley and trolley wheel in proper order. The utility model discloses using telescopic cylinder, trolley wheel and movable pulley cooperation, and the actual moving speed of lifting frame is two times of telescopic cylinder speed, and has improved work efficiency, and still has little impact and other advantages.

The utility model discloses a high-stability electric door roller which comprises a mounting plate, a supporting plate is arranged on the outer wall of the mounting plate and located on one side, a door roller body is arranged on the upper end face of the supporting plate, fixing plates are arranged on the outer wall of the supporting plate and located at the upper end and the lower end of the supporting plate, threaded holes are formed in the fixing plates, and threaded holes are formed in the threaded holes. Threaded holes are formed in the door roller body, threaded columns are arranged in the threaded holes, one ends of the threaded columns penetrate through the threaded holes and are rotationally provided with clamping blocks, rubber pads are arranged on the inner walls of the clamping blocks and make contact with the door roller body, hand wheels are arranged at the other ends of the threaded columns, and circular holes are formed in the hand wheels. And a plug pin is arranged in the circular hole in a sliding mode, so that a user can rotate the hand wheel to enable the clamping block to move, the rubber pad makes contact with the door rolling machine body, and then the door rolling machine is more stable during operation.