214results about How to "Increase clamping force" patented technology

The invention relates to the technical field of new material performance detection, in particular to a new material compression resistance and tensile property detection device which comprises a test counter, a driving mechanism arranged in the test counter, an auxiliary mechanism arranged on the upper side of the test counter, a clamping mechanism arranged on the side face of the auxiliary mechanism, and a driving mechanism comprising a motor. Connecting shafts are arranged on the side faces of the motors. By arranging the driving mechanism, the auxiliary mechanism and the clamping mechanism, stable clamping of different materials can be completed, stable compression resistance and tensile property detection can be conducted, during detection, multiple modes and states can be provided for use, multiple sets of detection can be conducted, the detection efficiency can be improved, large-specification materials can be assisted to be stabilized during detection, and the detection efficiency is improved. Inaccuracy of detection effect data is avoided, in addition, performance detection of side stress of materials can be carried out, so that accuracy of performance detection and performance testing of new materials under multiple conditions are guaranteed, and functionality and accuracy are improved.

The invention discloses a port wheel type electro-hydraulic material grabbing machine with a self-adaptive clamp, and relates to the technical field of material grabbing machines, the port wheel type electro-hydraulic material grabbing machine comprises a frame, an anti-toppling unit, a cleaning unit and a buffer unit, and the frame is used for installing and fixing the anti-toppling unit, the cleaning unit and the buffer unit; the anti-toppling unit is used for preventing the grabbing machine from toppling and shifting when the grabbing machine works to grab heavy objects, the cleaning unit is used for self-cleaning of a clamp, the buffering unit is used for preventing the clamp from damaging the objects due to too large impact force when the clamp clamps the objects, and when the frame runs to a port to work, in the heavy object clamping process, the buffering unit is used for buffering the impact force. The anti-toppling unit avoids the phenomenon that the grabbing machine deviates and topples over due to the fact that objects are too heavy, the clamp is cleaned through the self-cleaning unit during underwater sludge treatment, the situation that sludge is accumulated on the clamp after long-term work is avoided, the clamping size is reduced, and the working efficiency is affected is avoided. And meanwhile, in the material taking process, damage to the objects caused by too large clamping force of the clamp is avoided through the buffer unit.

The invention discloses a jumper string capable of preventing a lead tension string from inclining, relates to the technical field of jumper strings, and aims to solve the problems that due to the blowing of wind power, leads swing and tend to drive the tension string to incline, and after the tension string inclines, the distance between the leads on two sides is increased, so that a jumper is separated from the leads, and the circulation of a conductive path is influenced. Through cooperation of an outer groove ring and an inner convex ring, before fixation, a clamping block can rotate between a clamping frame and a sliding plate and can be adjusted according to the angles of wires on the two sides of a tower, after fixation, the outer groove ring and the inner convex ring are tightly attached, an annular protrusion of the inner convex ring is clamped into an annular groove of the outer groove ring, and the contact area between the outer groove ring and the inner convex ring is increased; when a wire swings to drive a tension string of a tower to incline, a pulling force is transmitted to the clamping block through the tension wire clamp, so that the clamping block is limited by the outer groove ring and the inner convex ring, and the situation that the jumper wire and the wire are disconnected due to inclination of the tension string after the jumper wire is connected, a conductive path is disconnected, and power transmission is affected is prevented.

The invention discloses a tissue clamping piece which comprises a connecting base, a first driving part, a second driving part, a first elastic piece assembly and a second elastic piece assembly, and the first elastic piece assembly and the second elastic piece assembly integrally extend out of the two opposite side edges of the connecting base respectively. The first elastic piece assembly and the second elastic piece assembly each comprise a female elastic piece and a secondary elastic piece, and each secondary elastic piece is provided with a barb used for being connected with tissue. When the secondary elastic sheet is driven by the first driving part to reach the tissue or to be jointed with the tissue, the primary elastic sheet can be driven and controlled by the second driving part to move between a jointing state jointed with the tissue and a separating state separated from the tissue so as to detect whether the tissue is properly jointed by the secondary elastic sheet or not; after the tissue is properly jointed by the elastic piece, the female elastic piece and the elastic piece clamp the tissue at the same time. The invention also provides a valve repair device using the tissue holder.

The invention belongs to the technical field of soft robots, and particularly relates to a variable-rigidity flexible self-sensing actuator which comprises a flexible actuator, a flexible magnetorheological fluid damping cavity, a flexible magneto-rheological fluid damping device, a flexible magneto-rheological fluid control device, a flexible magneto-rheological fluid control device, a flexible magneto-rheological fluid control device and a flexible magneto-rheological fluid control device. And the square electromagnet is arranged in the middle of the flexible actuator and used for applying a magnetic field to change the viscosity of the magnetorheological fluid. In the use process, after the flexible actuator is driven by pressure fluid, the flexible actuator captures a target object after being pressed, bent and deformed; the magnetorheological fluid is adsorbed in a flow channel of the flexible magnetorheological fluid damping cavity under the action of a magnetic field of the square electromagnet, so that the flow resistance of the magnetorheological fluid in the flexible magnetorheological fluid damping cavity is greatly increased, the clamping force of the flexible actuator is enhanced, and the situation that after the flexible actuator captures a target object, the clamping force is insufficient due to a complex environment, and the clamping force is not enough is avoided. And the object slides down.

The invention relates to a part precision improving method based on measurement of inertia friction welding web deformation, and belongs to the technical field of welding, the part precision improving method specifically comprises the following steps: optimizing clamping force: analyzing post-welding part web deformation data, adjusting the clamping force according to the post-welding web deformation, and carrying out an iterative test; through strain data, the influence of the clamping force on the precision of the part is quantitatively analyzed, and the optimal clamping force is found. Optimizing welding process parameters: adjusting pressure or energy according to the deformation of the welded web, and carrying out an iterative test; through strain data, the influence of the change of the process parameters on the precision of the part is quantitatively analyzed, and the optimal process parameters are found. And obtaining optimized parameters, including clamping force, pressure and energy. By measuring the deformation of the part before welding and in the welding process and optimizing the clamping force and process parameters, the method plays an important role in improving the post-welding precision of the inertia friction welding part, and has wide application prospects.

The invention belongs to the technical field of high-speed rotary tables, and discloses a high-stability high-speed rotary table for a milling machine and an operation method thereof.The high-stability high-speed rotary table comprises a rotary table top disc and a rotary table base, the rotary table base is located below the rotary table top disc, and a sleeve hole and a first groove are formed in the top face of the rotary table top disc. The upper portions of the adjusting assemblies which are in relative spiral sleeve connection are made to independently move upwards, the multiple clamping assemblies are driven to move upwards, in cooperation with forming of first grooves, the first clamping rods for actually clamping a workpiece at the top of the rotary table top disc can be accurately adjusted up and down, and therefore when the workpiece is actually clamped, according to the height condition of the top machining end of the workpiece, the machining efficiency is improved. The actual clamping position is adjusted, so that the workpiece is stabilized at the gravity center distribution position of the workpiece during clamping and fixing, better stability is achieved when the workpiece is matched with high-speed rotation and external stress machining under clamping, the application range of workpiece clamping rotation is widened, and meanwhile the stability of a high-machining workpiece under actual high-speed rotation is further improved.

The invention relates to the technical field of cable installation, and discloses a power cable stripping device which comprises a working shell, a first supporting frame fixedly connected to the inner wall of one end of the working shell, a second supporting frame fixedly connected to the inner wall of the end, close to the first supporting frame, of the working shell, and a cable stripping mechanism. The cable stripping mechanism comprises a motor fixedly connected to one side of the outer wall of the cable stripping mechanism, the motor is started, the motor drives a rotating shaft to rotate, the rotating shaft drives a first rotating sleeve to rotate, the first rotating sleeve drives a first gear to rotate, the first gear drives a second gear to rotate, and the second gear drives a second rotating sleeve to rotate. The first rotating sleeve and the second rotating sleeve both drive the special-shaped pressing roller to rotate, the special-shaped pressing roller clamps and pushes the cable, the first rotating sleeve and the second rotating sleeve both drive the belt to rotate, the belt drives the rotating roller to rotate, the rotating roller drives the cutting knife to rotate, and therefore the cutting knife cuts the cable.

The invention discloses an anti-disengaging type mechanical arm for mold manufacturing and a using method, and belongs to the technical field of mechanical arms, the anti-disengaging type mechanical arm comprises a mechanical arm body and a tail end executing structure installed on the mechanical arm body, the tail end executing structure comprises a parallel pneumatic finger and a micro air extracting pump, and clamping seat assemblies are connected to two clamping jaws of the parallel pneumatic finger. After the tail end executing structure grabs the mold base, clamping force of spherical elastic air bags in the flexible reinforcing units located in the negative pressure grooves and negative pressure adsorption force in the negative pressure grooves are overlapped and jointly and additionally act on the surface of the mold base, and the grabbing firmness of the tail end executing structure on the mold base is enhanced through the overlapped effect; and in the process that the vacuum degree in the negative pressure groove is gradually increased, the clamping force on the mold base is further increased through the spherical elastic air bag with the increased size, so that the grabbing firmness of the tail end execution structure is further enhanced, and the risk that the mold base falls off in the moving process is greatly reduced.

The utility model relates to the technical field of coal mine drill carriages, and provides a drill rod clamping device which comprises a base. The clamping piece I is movably arranged on the base; the second clamping piece is movably arranged on the base, the moving direction of the second clamping piece is parallel to the moving direction of the first clamping piece, and the first clamping piece and the second clamping piece are jointly used for clamping a drill rod; the first elastic piece acts on the second clamping piece and is used for providing force for the second clamping piece to get close to the first clamping piece. By means of the technical scheme, the problem that in the prior art, when a raising hole with a certain angle is drilled, a drill rod is prone to slipping is solved.

The invention relates to the technical field of gear ring machining tools, in particular to a gear ring fixing device for gear ring inner hole machining, which comprises a radial positioning assembly, an axial positioning assembly, a limiting assembly and a back pressure assembly, the radial positioning assembly is connected with the fixed disc; the limiting assembly is connected with the radial positioning assembly and the axial positioning assembly, and the back pressure assembly is connected with the radial positioning assembly. The rotating clamping jaws providing the radial clamping effect are divided into the rigid jaws and the flexible jaws, radial clamping force is provided for the thin-wall gear ring at the same time, the axial positioning assembly is used for pressing the end face of the thin-wall gear ring, and the rotating clamping jaws generate the rotating tendency when vibrated, so that the lower pressing jaws generate larger pressing force on the end face of the gear ring; at the moment, the flexible claws can eject out to provide larger radial clamping force for the outer ring of the gear ring; the problems that the thin-wall gear ring deforms when being subjected to too large clamping force during cutting, and the machining precision is reduced due to the fact that the gear ring deviates under vibration and impact when being subjected to insufficient clamping force are solved.

The invention discloses an integrated clamping jaw mechanism for taking a contact pin in a mold, which belongs to the technical field of contact pin clamping equipment and comprises an upper contact pin clamping jaw and a lower contact pin clamping jaw which can be opened and closed along the vertical direction, the pin upper clamping jaw comprises an upper shell, a plurality of parallel upper clamping teeth extending from the front edge of the upper shell, and a plurality of elastic clamping teeth located between the adjacent upper clamping teeth. The pin lower clamping jaw comprises a lower shell, a clamping tooth plate extending from the front edge of the upper shell and a plurality of lower clamping teeth protruding from the surface of the clamping tooth plate to the direction where the pin upper clamping jaw is located, the lower clamping teeth and the elastic clamping teeth are in one-to-one correspondence, and when the pin upper clamping jaw and the pin lower clamping jaw are closed, the pin upper clamping jaw and the pin lower clamping jaw get close to each other to clamp the pin. The contact pin is stably limited, the positioning is accurate, the clamping stability is high, and the mechanical wear is reduced.

The utility model relates to a waterproof joint. The technical problem to be solved by the utility model is to provide a flange type waterproof joint with large clamping force. According to the technical scheme, the connector comprises a connector body, a lower flat gasket, a sealing ring, a coil clamping ring, an upper flat gasket and a connector nut, a flange end face is arranged outside the connector body, the connector body is provided with a connector end baffle and a sealing ring positioning groove, a connector main through hole is formed in the connector end baffle, a sealing ring extrusion groove is formed in the outer wall of the sealing ring, and the coil clamping ring is arranged in the sealing ring extrusion groove. A sealing ring through hole is formed in the sealing ring, and a coil clamping positioning groove is formed in the inner wall, at the sealing ring extrusion groove, of the sealing ring through hole. The utility model has the advantages that the flange end face design replaces the traditional connection structure of external threads and locking nuts, so that the installation efficiency is improved, and the installation space in the cabinet is reduced; and due to the design of the coil clamping ring, when the connector is tightened, the clamping force on the cable can be greatly improved through extrusion, so that the cable is not easy to loosen.

The utility model discloses a crane capable of preventing unbalance, which comprises a trailer, a crane body is arranged on the trailer, a ground fixing mechanism is arranged on the outer side of the trailer, the ground fixing mechanism comprises a hydraulic cylinder, a mounting shell, a motor, a taper sleeve, a spiral block and an auxiliary mechanism, the hydraulic cylinder is mounted on the outer side of the trailer, the mounting shell is mounted at the bottom end of the hydraulic cylinder, and the motor is mounted on the mounting shell. The motor is installed in the installation shell, the taper sleeve is rotationally installed on the bottom face of the installation sleeve and connected with the output end of the motor, the hydraulic cylinder is driven to work through the hydraulic system, the installation shell is pushed downwards, preliminary contact and fixation with the ground are achieved, the taper sleeve is driven to rotate after the motor is started, and a spiral block on the taper sleeve is screwed into soil along a spiral path. A rotating handle drives a center rod to rotate, a rotating sleeve rotates along with the center rod, then an inclined block is driven to move, the inclined block is matched with a contact block, the contact block pushes a sliding rod to slide, the sliding rod moves to push an inserting rod to be inserted into soil, and final fixing of the ground fixing mechanism is completed.

The utility model discloses a connector plug which is better in clamping force and has locking and unlocking functions. According to the technical scheme, the plug comprises a plug shell and a female terminal arranged in the plug shell, the plug shell is provided with a set of insertion cavities used for containing the female terminal, the front end of the female terminal is provided with an insertion port, the rear end of the female terminal is provided with a wire pressing pin, and a clamping mechanism is integrally formed at the front end of the insertion port of the female terminal. The clamping mechanism comprises an arc-shaped part extending out of the connecting and inserting opening and a first elastic clamping piece which extends into the connecting and inserting opening and is obliquely arranged, and the front end of the first elastic clamping piece is bent to form a second elastic clamping piece which is obliquely arranged; the bottom of the second elastic clamping piece is bent to form a supporting leg close to or attached to the bottom face of the plugging port, the top face of the plugging port is provided with barbs corresponding to the upper portion of the first elastic clamping piece, and the front end of the plug shell is provided with a jack matched with the plugging port. And a positioning groove matched with the arc-shaped part is formed in the plug shell.

The invention provides a fixing device for crystal packaging, and relates to the field of crystal packaging, the fixing device comprises a base, the upper part of the base is fixedly connected with a supporting plate, and the upper end surface of the supporting plate is fixedly connected with two T-shaped sliding rails in a bilateral symmetry manner; a fine adjustment mechanism is arranged on the upper portion of the supporting plate. Through the arrangement of the worm and the worm gear, the worm, the worm gear, the front-back fine adjustment screw rod and the left-right fine adjustment screw rod can achieve an effective self-locking effect, the phenomenon that the front-back fine adjustment screw rod and the left-right fine adjustment screw rod are prone to loosening in the actual use process is avoided, and the fixing effect of the fixing device is prevented from being affected; the stability of the crystal in the packaging process is improved; the fixing device for crystal packaging solves the problems that when an existing fixing device for crystal packaging adjusts the position of a crystal, driving is usually achieved by rotating a threaded rod structure, the threaded rod structure is prone to loosening in the using process, the fixing effect of the fixing device is affected, and the stability of the crystal in the packaging process is reduced.

The utility model belongs to the field of packaging machines, particularly relates to a bag opening flattening and clamping mechanism for a blanking clamping bag of a packaging machine, and provides the following scheme aiming at the problems that the clamping force of the existing clamping mechanism is insufficient, and when the clamping angle deviates, a packaging bag is easily broken by clamping, and the bag opening flattening and clamping mechanism comprises two fixing plates which are symmetrically arranged, the clamping device comprises two fixing plates, two symmetrically-arranged round rods are fixedly connected between the two fixing plates, the outer walls of the two round rods are each slidably sleeved with two symmetrically-arranged sliding sleeves, and the outer walls of the sliding sleeves are fixedly sleeved with mounting plates. The packaging bag can be flattened again, follow-up sealing is facilitated, the clamping assembly is arranged, the packaging bag can be clamped from the two sides, the two ends of an opening of the packaging bag are clamped in the horizontal direction, then the clamping stability is improved, and the clamping force can be conveniently controlled through the extending length of the first clamping rod and the extending length of the second clamping rod.

The invention relates to the field of machine tool clamps, and particularly discloses a non-standard part machining clamp for a precision machine tool, which comprises a mounting plate, a supporting rod is arranged on the mounting plate, a bearing plate for placing a workpiece is arranged on the supporting rod, a driving mechanism is arranged on the mounting plate, and a plurality of sliding assemblies are arranged on the driving mechanism. The driving mechanism drives the sliding assembly to move. A supporting block is arranged on the sliding assembly, a clamping assembly used for clamping the side face of a workpiece is arranged on the supporting block, and a pressing assembly used for pressing the top of the workpiece is arranged on the supporting block. When a non-standard part is clamped, the clamp can be adjusted in all directions, so that the clamp meets the clamping requirement of the non-standard part, the clamp can be automatically adjusted in a three-dimensional mode so as to clamp different workpieces, precise positioning of the workpieces is achieved, the high-precision requirement is met, the universality of the clamp is improved, and the clamping capacity of the clamp is improved; the tool setting precision during subsequent machining is guaranteed, and the machining precision of workpieces is improved.

The multi-rope friction type mine hoist comprises a friction wheel and a head sheave, a steel wire rope surrounds the friction wheel and the head sheave, hoisting containers are arranged at the two ends of the steel wire rope respectively, tail ropes are arranged at the bottoms of the hoisting containers, the two ends of the tail ropes are connected to the hoisting containers respectively, and an anti-slip device is arranged on the front side of the friction wheel. And the steel wire rope penetrates through the anti-slip device. The invention belongs to the technical field of mine hoists. The friction wheel hub is attached to the steel wire rope, when the slipping steel wire rope slides rapidly, the rotating speed of the friction wheel hub is increased, the centrifugal force of the speed measuring sliding block on the friction wheel hub is increased, the connecting rod is driven to move outwards, the connecting rod drives the poke rod to move, and the poke rod pushes friction wedge blocks on the two sides of the rope clamping plate to get close to the limiting block; the rope clamping plate is extruded by the limiting block to be clamped on the steel wire rope, and gradually-increased friction force between the rope clamping plate and the steel wire rope prevents the steel wire rope from further slipping to cause equipment damage or accidents.

The invention relates to the technical field of U-shaped beam transverse movement, in particular to a U-shaped beam pier top transverse movement mechanism which comprises a rail, the rail is fixedly installed above a pier top, a supporting seat is slidably installed above the rail, a clamping assembly is movably installed above the supporting seat, and the clamping assembly comprises a fixed support, a telescopic side plate and a clamping plate. The telescopic side plates are installed on the two sides of the fixing support in a sliding mode. The U-shaped beam is clamped and supported through the clamping plates and the supporting plates, the U-shaped beam is prevented from sliding in the transverse moving process and being damaged in the transverse moving process, the U-shaped beam is longitudinally locked through the mooring rope, and the problems that safety accidents are caused and the U-shaped beam cannot continue to transversely move due to the fact that the U-shaped beam slides towards the lower end are solved. Through the movement of the transverse moving locking block, the moving range of the U-shaped beam can be effectively widened, and the problem that the U-shaped beam can reach the set position only through multiple times of transverse moving in the long-distance transverse moving process is solved.

The invention discloses a traceless chain pipe wrench which comprises a chain cangue, symmetrical first connecting seats are arranged at one end of the chain cangue and located on one side of the chain cangue, symmetrical second connecting seats are arranged at the other end of the chain cangue, a first through groove is formed in the middle of the chain cangue, and a chain set is hinged to the first connecting seats through first cylindrical pins. The other end of the chain set penetrates through the first through groove, the second connecting base is fixedly connected to one end of the plier head through a second cylindrical pin, the plier head is provided with a through first through hole, a pawl rod is arranged at the end, close to the chain cangue, in the first through hole, a limiting block is fixedly connected to the end, close to the chain cangue, of the pawl rod, and the other end of the pawl rod is connected with a plier handle. The plier handle is in threaded connection in the first through hole of the plier head. The chain pliers solve the problems that the smooth surface of a pipe body is bitten by existing chain pliers, and the complete and smooth surface of a tool is damaged.

A saddle with a backrest capable of being adjusted in multiple directions comprises a supporting frame, the bottom of the supporting frame is connected with a cushion through an installation base, the two sides of the lower portion of the installation base are connected with an upper adjusting base and a lower adjusting base, the upper adjusting base and the lower adjusting base define an adjusting hole, and the supporting frame is installed in the adjusting hole in a sliding mode; locking holes are formed in the upper adjusting seat and the lower adjusting seat in a penetrating mode, and a locking screw is inserted into the two locking holes in a penetrating mode to lock the relative position between the cushion and the supporting frame. And a backrest is movably connected to the upper part of the support frame. The multi-direction and multi-degree-of-freedom adjustable seat has the advantages that the seat cushion and the backrest can be adjusted in multiple directions and multiple degrees of freedom, a user can adjust the seat cushion and the backrest in multiple directions according to requirements, personalized comfortable support is provided, adaptability is high, and riding safety is improved. Meanwhile, adjusting operation is convenient and fast, the adjusting difficulty is low, a user can quickly and easily complete the adjusting operation, and the use convenience is improved.

The utility model discloses a coping device for a trolley accessory, and relates to the technical field of accessory coping, the coping device comprises a trolley accessory coping device body, the trolley accessory coping device body comprises a lap joint bedplate, the outer side surface of the lap joint bedplate is slidably sleeved with a closed sealing grinding mechanism, and the outer side surface of the lap joint bedplate is sleeved with a closed sealing grinding mechanism. A scrap recycling and collecting mechanism is arranged on the surface of the outer side of the top of the lap-joint table plate, accessory clamping units are arranged on the surfaces of the two sides of the lap-joint table plate, and movable closing units are arranged on the surfaces of the two sides of the accessory clamping units. Scraps ground by the device are matched with an air extractor to absorb air in the storage and concentration sleeve shell, are matched with an air guide pipe to guide the air into the scrap collection sleeve shell, and are matched with a filter layer on the inner side surface of the scrap collection sleeve shell to filter the air, so that scrap impurities are filtered; and then the air is exhausted through the exhaust hole.

The utility model belongs to the technical field of power tool turrets, and particularly relates to a numerical control machine tool slant bed power tool turret turning and milling composite machine tool which comprises a numerical control turning and milling composite machine tool body, a power tool turret is arranged on the inner wall of the numerical control turning and milling composite machine tool body, and a motor installation groove is formed in the inner wall of the power tool turret. Servo motors are installed on the inner wall of the power tool turret, one servo motor is installed on the inner wall of the motor installation groove, a thermal shrinkage tool handle is installed at the output end of the servo motor, and a tool bit is movably connected to the inner wall of the thermal shrinkage tool handle. By arranging the thermal shrinkage cutter handle and utilizing the principle of thermal expansion and cold contraction, the cutter head is installed during heating and tightly held after cooling, vibration transmission can be reduced, the machining precision can be improved, errors can be automatically compensated, the coaxiality is ensured, the service life of the cutter head is prolonged, the surface quality is improved, the clamping force is higher, the cutter head can be effectively prevented from loosening, and the machining yield of fragile materials is improved.

The utility model relates to the technical field of clamps, in particular to a windproof clamp for awning cloth. The awning cloth windproof clamp comprises a concave frame, a clamping plate is placed on the top of the inner side wall of the concave frame, fixing columns are evenly arranged at the bottom of the clamping plate, second fixing teeth are evenly arranged on the left side of the bottom of the clamping plate, and fourth fixing teeth are evenly arranged on the right side of the bottom of the clamping plate. Fixing holes are uniformly formed in the bottom of the inner side wall of the concave frame in a penetrating manner; according to the utility model, through the fixing teeth and the fixing columns which are uniformly distributed in the concave frame, the contact area between the tarpaulin and the clamp can be greatly increased, and meanwhile, the hand-screwing bolts which are uniformly distributed on the clamping plates are matched, so that stable downward pressure can be provided for the clamping plates, and the clamping force of the clamp on the tarpaulin is further increased; and then the hand-screwing bolt is fixed through the anti-loosening assembly, so that the clamping stability of the clamp on the awning cloth is improved, and the windproof performance of the awning cloth fixed by the clamp is improved.

The utility model relates to an intelligent safety electricity meter terminal, which comprises a shell, an electricity meter management terminal and at least one group of safety electricity meters, the safety electricity meters are connected with a data interface of the electricity meter management terminal, and data transmission and safety verification of the safety electricity meters are respectively managed through the electricity meter management terminal; in the electric meter terminal, a plurality of safe electric meters can share one electric meter management terminal, and safety certification management and communication management are respectively carried out on the safe electric meters through the electric meter management terminal, so that the size of the electric meters is reduced, and the occupied space of a single electric meter is reduced; as long as the newly added safe ammeter is connected to the data interface of the ammeter management terminal, and the ammeter management terminal manages the data transmission process of the safe ammeter in a unified manner, safe data transmission can be realized, and ammeter installation and management are facilitated.

The utility model provides a kind of special pipe-laying device for roof gas drilling, including main gasket, the conical gasket is fixedly installed in main gasket front side, the mounting bracket is fixedly installed in main gasket side wall, the first bolt is penetrated and set in mounting bracket inside, and is threadedly connected with it, the clamping assembly is arranged in main gasket inside, for clamping hole sealing pipe, sliding limiting assembly in mounting bracket inside, for increasing the stability of device, through independent clamping assembly pertinence solution φ73mm drill rod and the radius difference problem of φ63mm hole sealing pipe, double locking of cooperation block and card slot and the anti-channeling design of wedge structure, make hole sealing pipe clamping force effectively promote, eliminate down channeling risk of hurting people, clamping assembly is convenient for quick dismounting, it is convenient for staff to install and replace, guarantee the clamping effect of device, the sliding adaptation design of connecting frame is compatible with different drilling machine chuck, increase the practicability of device.

The utility model discloses a ground source heat pump pipeline heat preservation structure which comprises a conveying pipeline, a first heat preservation sleeve and a second heat preservation sleeve are arranged on the outer side of the conveying pipeline, mounting plates are symmetrically and fixedly connected to one side of the second heat preservation sleeve, and mounting grooves are symmetrically and fixedly connected to one side of the first heat preservation sleeve. Clamping grooves are formed in one side of the interior of the first heat preservation sleeve and one side of the interior of the second heat preservation sleeve correspondingly, fixing rods are fixedly connected to the top of the first heat preservation sleeve and the bottom of the second heat preservation sleeve correspondingly, sliding grooves are formed in the fixing rods, sliding plates are slidably connected to the inner sides of the sliding grooves, and the sliding plates are slidably connected with the connecting plates through limiting frames, so that the limiting effect is achieved; and the structure is simple, operation is convenient and fast, the installation work efficiency of the first heat preservation sleeve and the second heat preservation sleeve is greatly improved, the first heat preservation sleeve and the second heat preservation sleeve are arranged on the outer side of the conveying pipeline and can protect the conveying pipeline, and the service life of the conveying pipeline is prolonged.

The invention relates to the field of flange machining, in particular to an anti-torsion clamping device for flange machining. Comprising a drilling machine table, an axis column located in the drilling machine table, a driving plate located at the top of the axis column, a driving groove formed in the surface of the driving plate, a clamping plate located at the top of a sliding base, a limiting table located in the hollow position of the lower portion of the drilling machine table and a locking rod penetrating through the axis column. According to the flange clamping device, the clamping action of opposite movement of the clamping plates on the two sides can be achieved through rotation of the driving plate, the clamping precision of the clamping plates is improved under the arrangement of the oval driving groove, and the clamping posture can be adaptively adjusted according to the flange size in the clamping process under the arrangement of accessories of the abutting part, the ejection part and the auxiliary part; according to the flange clamping device, the clamping area of a flange is increased, multi-point clamping is achieved, the clamping capacity of the device is improved, and the possibility that the flange deflects and moves due to too large torsion or other acting force in the machining process is reduced.

The utility model discloses a kind of flat steel clamping assembly structure, including assembly groove and clamp, clamp includes two clamping pieces oppositely arranged along assembly groove extension direction, each clamping piece sequentially includes locking portion, clamping portion and with the stop portion of assembly groove cooperation, the clamping space for fixing flat steel is enclosed between the clamping portion of two clamping pieces and assembly groove;Clamping portion is L-shaped as a whole, including the first clamping section and the second clamping section of mutual connection, the end of first clamping section away from the second clamping section is connected with locking portion, the end of second clamping section away from first clamping section is connected with stop portion, locking portion and stop portion extend in direction of away from first clamping section, the end of first clamping section and locking portion compared with the end of first clamping section and second clamping section connection is inclined to the inside of clamping space. The above structure effectively improves the convenience, flexibility, reliability and versatility of flat steel clamping structure / device actual use.