88results about How to "Not easy to flip" patented technology

The invention belongs to the field of oil gas development, and particularly relates to an electric control fluid drive coiled tubing downhole retractor. The electric control fluid drive coiled tubing downhole retractor comprises an upper slip support and traction system, a center slip pipe assembly, a control system and a lower slip support system, wherein the upper slip support and traction system is sleeved on the upper part of the center slip pipe assembly in a sliding manner, and can slide along the center slip pipe assembly up and down; and the control system and the lower slip support system are fixed on the lower part of the center slip pipe assembly. The retractor provided by the invention has the advantages that the control flexibility is better, the retractor is suitable for small hole downhole traction operation, the normal downhole fluid cycle is ensured in a traction process, the flexible winding adaptive ability is strong in the traction process, and the retractor can realize two-way traction; and most of retractors in China only can realize a single direction traction motion, the retractor provided by the invention can smoothly drag a pipe column to realize taking-out and putting-down operations, the flexibility is good, and the retractor can realize effective power-off protection.

The invention discloses a protection device for a cable sheath in the power construction process. The protection device comprises a shell, wherein one or more rolling mechanisms are arranged at the upper end of the shell; a through hole axially perpendicular to a rotating shaft of each rolling mechanism is formed in the shell; a bearing is arranged in the through hole; an inner pipe is sleeved by the bearing; two ends of the inner pipe stretch out of the through hole; a conducting wire adjusting and fixing mechanism is arranged at each of the two ends of the inner pipe. By the adoption of the bearing arranged inside the shell, the cable moves forwards under the action of a dragger, a conducting wire is easy to automatically rotate due to the dead weight per se, and a twisted conducting wire is loosened to greatly facilitate moving or recycling of the conducting wire without damaging the wire sheath.

Disclosed in the invention is a waterborne solar generating platform comprising at least one floating unit. Each floating unit is formed by mutual connection of floating body units by connecting elements; and the floating units are mutually connected by trusses to form a floating platform. The trusses are fixed at the floating body units floating over water. The floating platform is provided with a repairing channel and several kinds of connectors for fixing a cell panel, an electrical device, and an auxiliary device. The floating body units contain sealed shells and reinforced bodies arranged in the sealed shells. The rigidity of each floating body unit meets the following conditions: the maximum radial deformation value does not exceed the one percent of the diameter of the unit and the maximum axial deformation value does not exceed the 0.5% of the length when the unit carries a load; the mass of the floating body unit is between 32KG and 950 KG; and a buoyancy force larger than 3.84KN is generated during floating in water. The provided platform has advantages of high stability, good wave-resistant performance, and high wind-resistant stability.

The invention relates to a mobile operation platform. The mobile operation platform comprises a base, a support and a supporting platform on the top, wherein the support comprises vertical columns arranged at four corners of the base; a guardrail is arranged on the top of the supporting platform and comprises a side guardrail arranged along the length direction of the supporting platform; the guardrail further comprises a left guardrail and a right guardrail which are arranged along the width direction of the supporting platform; a horizontal movable groove is formed in the supporting platform, and an opening of the movable groove is arranged in a direction far away from the right guardrail; a crawling ladder is arranged on the right guardrail; the movable groove is movably provided with amovable plate; the movable plate is abutted against the inner wall of the movable groove and horizontally slides along the movable groove; and the supporting platform is provided with a driving mechanism for driving the movable plate to horizontally move. The mobile operation platform has the effect that the top of the operating platform is convenient to extend.

The invention discloses a crystal raw material and an unmanned loading machine thereof. Two lugs are arranged at one side of the crystal raw material, and a central location block is arranged at the middle position. The unmanned loading machine is used for loading before the crystal raw material enters a polishing machine, and comprises a rack, wherein a displacement mechanism is arranged on the rack; a vibration disc sorting machine is installed on the displacement mechanism; an inclined slide way arm provided with a slide groove, an inclined slide way plate with a certain number of slide ways, and a die bus bar with the same number of die grooves as the slide ways are sequentially connected behind the vibration disc sorting machine according to the loading sequence of the crystal raw material; and the displacement mechanism drives the vibration disc sorting machine and the slide way arm to move to left and right. Differentiation for the front surface and the back surface of the crystal raw material disclosed by the invention is facilitated, the crystal raw material is ordered in arrangement and conveying, and high in identification accuracy, the labour cost is greatly lowered, and the production efficiency is increased.

The invention discloses a vehicle frame, a milling machine, and an adjusting method for a milling machine gravity center. The vehicle frame comprises a vehicle frame body and a fixed counterweight arranged on the vehicle frame body. The vehicle frame further comprises a gravity center adjusting mechanism. The gravity center adjusting mechanism comprises a movable counterweight and an oil cylinder set. The movable counterweight is arranged on the vehicle frame body. The oil cylinder set is used for driving the movable counterweight to move on the vehicle frame body. The milling machine comprises the vehicle frame, and the gravity center adjusting mechanism is installed on the vehicle frame. According to the adjusting method for the milling machine gravity center, changing of the position of the movable counterweight in the gravity center adjusting mechanism is used for adjusting the milling machine gravity center. Compared with the mode that the position of the gravity center is adjusted by increasing and decreasing a counterweight manually in the prior art, position changing of the movable counterweight has continuity, so that adjustment of the gravity center position is very accurate. The oil cylinder set conducts driving through hydraulic pressure, so that adjustment of the gravity center position is automatic and convenient, and the construction efficiency is high.

The invention discloses a flame-retardant type wood board paint spraying device which comprises a paint spraying box. A plurality of paint spraying openings are fixedly connected to the side wall of the top end inside the paint spraying box. Fixing blocks are fixedly and symmetrically connected to the side wall of the bottom end inside the paint spraying box, supporting plates are symmetrically arranged between the two fixing blocks, first screw holes and sliding holes are sequentially formed in the plate walls, close to the bottom end, of the two supporting plates, first screws with oppositethread directions are arranged at threads inside the two first screw holes, the opposite ends of the two first screws penetrate through corresponding hole openings in the first screw holes and are fixedly connected together, the back-to-back ends of the two first screws penetrate through the hole openings corresponding to the first screw holes and extend outwards, and first bearings are fixedly and rotationally connected to the corresponding side walls of the fixing blocks. According to the wood board paint spraying device, in the working process, wood boards are fixed, the boards are turned over by means of a machine, and the phenomena that the boards are excessively large, manual overturning is slow, and paint is not sprayed uniformly are avoided.

The invention relates to a wheel carrier for an electric bicycle, which structurally comprises a support plate, as well as front rolling wheels and rear rolling wheels which are arranged at the bottom of the support plate, wherein the front and rear parts of the support plate are articulated with a front baffle and a rear baffle respectively; a front cushion block and a rear cushion block are arranged between the support plate and the front baffle, and between the support plate and the rear baffle respectively; cushioning angles of the front and rear baffles can allow a loaded wheel of the electric bicycle to be just contained in an opening angle bracket formed by the front baffle, the support plate and the rear baffle; and hurdles are arranged in the middles on the two sides of the support plate, and are fixing frames of a bundling belt of the wheel of the electric bicycle. The wheel carrier is convenient to carry with the bicycle, good in fixity, and high in follow-up performance, is not easy to overturn in a moving process, and can meet using requirements of extensive electric bicycle users, and the practicability is improved greatly.

The invention discloses a cleaning device and a cleaning method for foreign matters on a different-layer overhead cable, and relates to improvement of a high-voltage cable device and an operation method thereof. The cleaning device is delicate in structure, convenient to use and good in stability, can conveniently move on the cable in a reciprocating manner in use and can keep stable. The cleaning device comprises a cleaning component and a mobile component, wherein the mobile component comprises a body, a pair of clamping plates, at least one pulley, at least one pair of driving wheels, two driving ropes and two rope lacing devices, wherein the body is in a frame body with an opening in the bottom; the clamping plates are hinged to two sides of the bottom of the body; the pulley is hinged in the body; the driving wheels are fixed at one end far away from the pulley; the driving ropes are in a closed loop form and respectively wind the driving wheels; the cleaning component comprises a cleaning claw and a cleaning rod; the cleaning rod is connected to the body; and the cleaning claw is fixed at one end of the cleaning rod. The cleaning device is convenient to move, accurate in moving position, and extremely stable in movement. The stability in movement is greatly improved. The cleaning device is convenient to move, efficient, good in stability, high in foreign matter cleaning efficiency and good in cleaning effect.

The invention discloses a vehicle body pillar B lower reinforcing assembly. The vehicle body pillar B lower reinforcing assembly comprises a pillar B body and a threshold body, the pillar B body comprises a pillar B inner plate and a pillar B reinforcing plate, the pillar B reinforcing plate is longitudinally extended and fixed in front of the pillar B inner plate, the threshold body comprises a threshold outer plate and a threshold inner plate, the lower end of the pillar B inner plate is perpendicularly extended and fixed between the threshold outer plate and the threshold inner plate, the lower end of the pillar B reinforcing plate is perpendicularly extended and fixed to the middle lower part of the front side of the threshold outer plate, a threshold outer reinforcing plate is fixedlyarranged between the rear side of the threshold outer plate and the front side of the pillar B inner plate, a side wall outer plate of a vehicle body is fixed in front of the pillar B reinforcing plate and in front of the threshold outer plate, a seat cross beam and a front floor body are horizontally arranged on the upper side and the lower side of the rear side of the threshold inner plate respectively, and the seat cross beam and the front floor body are arranged in parallel. According to the vehicle body pillar B lower reinforcing assembly, the pillar B body can bear enough impact force when undergoing the side surface collision, and the pillar B body has enough strength to ensure that the situations that due to the fact that the threshold turnover occurs, the pillar B immersion amount is excessively large, and then the side surface deformation is caused during collision can be avoided.

The invention relates to a chain-type lifting mechanism for carried cargo. The chain-type lifting mechanism comprises a framework, and a platform is arranged in the framework. The chain-type lifting mechanism is characterized in that the framework at the lower part of the platform is provided with a transmission shaft; each of two ends of the drive shaft is provided with a drive sprocket; one side of each drive sprocket is provided with a first fixed seat; each of two ends of the platform is provided with a first reversing sprocket and a second reversing sprocket from bottom to top; the inner side of each of two ends of the top part of the framework is provided with a third reversing sprocket; one side of each third reversing sprocket is provided with a second fixed seat; each of two ends of the inner side of the framework is provided with a chain; one end of each chain is connected with the corresponding first fixed seat, and after being wound on the first reversing sprocket, the drive sprocket, the third reversing sprocket and the second reversing sprocket, the other end of each chain is connected with the corresponding second fixed seat. The lifting mechanism can be adapted to an environment of vibration or shock very well, and is not easy to damage; when the chain-type lifting mechanism is assembled, position adjustment can be realized by adjusting length and end connection tightness of the chains; and the chain-type lifting mechanism has relatively low requirement on manufacturing and assembly accuracy, is relatively low in manufacturing cost, and can be suitable for the automation requirement of small and medium warehousing and on-board warehousing.

The invention discloses a method for controlling twist redistribution. According to the invention, a back zone force application method is adiopted to apply external force on a strip located in a drawing back zone, a force application point is located on the strip surface of the drawing back zone, component force is produced by the applied external force in a vertical direction of the strip surface of the drawing back zone, a stable frictional force zone is provided for the position of the force application point, the strip is not easy to turn over, simultaneously, compactness of the strip can be effectively improved, twist redistribution can be effectively avoided, and resultant yarn levelness is improved.

The invention discloses a marine lifeboat. The marine lifeboat comprises an inflatable boat bottom, a boat body and a boat top, wherein the inflatable boat bottom comprises a first airbag and an inflation device communicated with the first airbag; a second airbag communicated with the first airbag is arranged on an outer surface of the boat body; a third airbag communicated with the second airbag is arranged at the boat top; the first airbag comprises a square airbag and a triangular airbag which is communicated with two symmetrical sides of the square airbag; a plurality of triangular airbags for supporting the boat body are formed by the second airbag and the square airbag of the first airbag; and connecting parts of the upper parts of the third airbag and the second airbag are communicated to form a plurality of ladder-like airbags for supporting the boat top. Compared with the prior art, the marine lifeboat has the advantages of high rescuing efficiency, high supporting effect, stable structure, convenience for utilization, good warm-keeping and heating effects, low cost and the like, and can provide a wind-proof, warm-keeping and dry cabin body for people suffered from disasters; and meanwhile, fears of the people suffered from disasters can be alleviated and the rescuing efficiency can be improved better.

The invention discloses a square cabin lifting device and discloses an electric elevating mechanism. The electric elevating mechanism comprises a transmission chain connected with a square cabin support and a grounding landing leg, wherein the transmission chain is driven through an electric drive device to rotate; the square cabin support and an inner pipe of a landing leg in the grounding landing leg are driven to synchronously ascend and descend; and a forced opening and closing mechanism is also arranged on a connecting support rod between the square cabin support and the grounding landing leg, so that automatic locking or unlocking can be achieved by a locking device and a locking hole when a square cabin ascends or descends. According to the electric elevating mechanism, automatic operation of the whole elevating operation of the square cabin can be achieved and locking and unlocking of the support rod do not need to be manually adjusted, so that the operation efficiency is greatly improved.

Disclosed in the invention is a waterborne solar generating platform comprising at least one floating unit. Each floating unit is formed by mutual connection of floating body units by connecting elements; and the floating units are mutually connected by trusses to form a floating platform. The trusses are fixed at the floating body units floating over water. The floating platform is provided with a repairing channel and several kinds of connectors for fixing a cell panel, an electrical device, and an auxiliary device. The floating body units contain sealed shells and reinforced bodies arranged in the sealed shells. The rigidity of each floating body unit meets the following conditions: the maximum radial deformation value does not exceed the one percent of the diameter of the unit and the maximum axial deformation value does not exceed the 0.5% of the length when the unit carries a load; the mass of the floating body unit is between 32KG and 950 KG; and a buoyancy force larger than 3.84KN is generated during floating in water. The provided platform has advantages of high stability, good wave-resistant performance, and high wind-resistant stability.

The invention relates to a stator punching piece lamination device. The stator punching piece lamination device comprises a cylindrical stand column which is arranged on the ground in the vertical direction; a placement table used for containing stator punching pieces is arranged on the side edge of the stand column, and a cavity is formed in the ground, corresponding to the placement table; a lifting device used for driving the placement table to rise and fall in the vertical direction is arranged between the placement table and the bottom wall of the cavity; the largest surface area on one plane of the placement table is equal to the surface area of the cavity; when the device is in use, the stator punching pieces are stacked on the placement table, a worker takes the stator punching pieces from the placement table, then the stator punching pieces positioned on the placement table are placed on the cylindrical stand column, and the lifting device is driven, so that the placement table can be lifted to the worker in the vertical direction, and the stator punching pieces positioned on the placement table can be taken down without needing the worker to bend down; and the device hasthe advantages that the bending frequency is reduced, the waist is not prone to being damaged, and the body health effect of the worker is guaranteed.

The invention belongs to the field of oil and gas field development and relates to a tractor used for drilling, logging and well repair engineering of a coiled tubing and favorable for the coiled tubing to extend into a horizontal well section for a longer distance. A motor-driven underground tractor for the coiled tubing comprises an upper tractor system, a hexagonal central sliding pipe and a lower tractor system, wherein the upper tractor system comprises an upper supporting unit, an upper electric drive and control unit and an upper traction unit; and the upper tractor system and the lower tractor system have the same structure, and are connected at the upper part and the lower part of the hexagonal central sliding pipe respectively in a sleeving way and mounted in the same or opposite direction. The tractor is directly driven and controlled by a servo stepper motor, so that the dependence on liquid energy in the process of driving the tractor by using circulating liquid and the complexity of control of a hydraulic valve of the circulating liquid on a pipeline are reduced and most of space occupied by the hydraulic pipeline is saved; and the tractor can perform dual-direction traction, is good in stability, flexible in traction and fast in traction speed, can be suitable for underground traction work of small well holes, and can guarantee normal underground liquid circulation in the traction process.

The invention relates to the field of a mahjong machine, in particular to a large plate mechanism of a mahjong machine. The large plate mechanism of the mahjong machine comprises a baseboard, a large plate body, a motor and a motor bracket, wherein the large plate body is arranged above the baseboard in a rotatable mode, the large plate body is a frustum-shaped shell with an opened bottom, a corresponding frustum-shaped space is formed in the large plate body, the motor bracket and an upper side surface of the baseboard are fixedly connected and are positioned in the frustum-shaped space, the motor and the motor bracket are fixedly connected, and the motor is connected with the large plate body in a transmission mode. The large plate mechanism provided by the invention is integrally thinner, and the center of gravity of the large plate mechanism in a folding state is slightly deviated from the application point of a support component of the mahjong machine supporting the large plate mechanism, so that the large plate mechanism does not overturn easily, and the foldable collecting function of the mahjong machine is truly realized.

The invention discloses a full-automatic mini washing machine. The full-automatic mini washing machine comprises a machine body shell, a washing barrel, an impeller, a motor, a water inlet device, a water drainage device, a water level sensor and a control circuit board, wherein the washing barrel is located in the machine body shell, the impeller is located at the bottom in the washing barrel, the motor is located at the bottom of the outer side of the washing barrel, and a rotating shaft of the motor passes through the bottom of the washing barrel and is in transmission connection with the impeller; and the motor, the water inlet device, the water drainage device and the water level sensor are electrically connected with the control circuit board. The full-automatic mini washing machinefurther comprises at least one hot air blower used for blowing hot air into the washing barrel to dry clothes, and the hot air blowers are electrically connected with the control circuit board. Compared with a traditional full-automatic washing machine, dehydration function assemblies such as a clutch, an inner barrel, a balance ring and a damping mechanism are omitted, and the product structure is greatly simplified; by directly adding a drying device, washed and rinsed clothes are directly dried; and due to the fact that the product size is small, the clothes are not easy to be wound, dryingenergy consumption is lower, and the full-automatic mini washing machine is more economical and practical.

The invention discloses a cart used for sporting goods. The cart comprises a cart body, supports and a placement tank, wherein a primary placement rack is fixedly connected with the bottom of the cartbody, a secondary placement rack is fixedly connected with the top of the cart body, the placement tank is movably connected with the middle of the primary placement rack, and a handle is fixedly connected with the left side of the placement tank. Four javelin placement grooves are embedded into the left side on the front face of the secondary placement rack, four javelin placement grooves are embedded into the right side on the rear face of the secondary placement rack, and a cavity is embedded into the middle in the placement tank. In use, a user can pull the placement tank out of the primary placement rack through the handle, and a worker can take basketballs, footballs, volleyballs or other large sporting balls from the placement tank or store basketballs, footballs, volleyballs or other large sporting balls into the placement tank. A frame is arranged around the placement tank, when placed in the placement tank, the balls can be protected, and the stability of the balls is high,so that the balls difficultly roll out. In use, the cart is higher in stability, more convenience is brought to storage, and the cart is applicable to the supporting goods and will have a good development prospect in future.

The invention relates to a mechanical hand short bar conveying device. The mechanical hand short bar conveying device comprises left and right stand columns (1). A transverse beam (2) is arranged between the left and right stand columns (1). Two first guide rails (3) are arranged on the front side of the transverse beam (2) in an up-and-down parallel mode. A travelling trolley (4) which can horizontally move left and right is arranged on the upper and lower first guide rails (3). Two second guide rails (5) are arranged on the front side of the travelling trolley (4) in a left-and-right parallel mode. A lifting support (6) which can horizontally move up and down is arranged on the left and right second guide rails (5). A bar clamping mechanical hand (7) is arranged at the bottom of the lifting support (6). According to the mechanical hand short bar conveying device, the mechanical hand mode and the clamping mode are adopted to convey short aluminum bars to a bar receiving groove of an extruder, the turnover phenomenon of the short bars is not prone to happening in the whole process, and the conveying safety of the short aluminum bars is greatly improved.

The invention discloses a latex glove overturning machine and a use method and application thereof. The overturning machine comprises an overturning device, wherein the overturning device comprises aframe, the frame is internally provided with a rotating divider, one side of the rotating divider is provided with a motor, an output shaft of the motor is connected with the rotating divider, the topof the rotating divider is provided with a feeding cylinder, the bottom of the feeding cylinder is provided with a one-way air inflation nozzle, the bottom of the one-way air inflation nozzle is provided with an air inflation cylinder, the air inflation cylinder is arranged on the bottom of the inner side of the frame, the top of the feeding cylinder is provided with a limiting cylinder, the twosides of the limiting cylinder are provided with connecting rods respectively, and the connecting rods are fixedly connected with the inner wall of the frame. The latex glove overturning machine and the use method and application thereof have the advantages that the overturning device is arranged to be conductive to improving the efficiency of inward and outward overturning of gloves, the operation is simple and convenient, running is stable, the working speed is further increased, and the labor intensity of workers is effectively reduced.

The invention belongs to the field of architecture, and particularly relates to a steel frame platform. The platform comprises a platform body, multiple end-to-end turning plates which are connected to the edge of the side, close to a wall, of the platform body in a hinged mode and extension plates which are detachably connected to the turning plates, each turning plate comprises a plate body and pulling connectors which are arranged on both sides of the middle-upper portion of each plate body and connected with the adjacent plate bodies in a clipping mode, and each pulling connector comprises an embedding groove which is formed in each plate body and has an opening formed in the side toward the adjacent plate body and a pulling handle which is connected into the opening of each embedding groove in a hinged mode and can turn outward to the adjacent plate body through a hinging point. According to the platform, the adjacent plate bodies can be in clipping connection, which are not likely to be turned; the pulling handle are embedded in the plate bodies, and when the plate bodies cover the platform body, it is guaranteed that the plate bodies are attached to the platform body, so that normal passing is guaranteed; when the turning plates are needed to be turned, the embedding grooves are pulled through embedded pulling plate notches, so that the turning plates are pulled up; operation is convenient and safe.

The invention discloses a latex glove turning machine, a use method and its application. The turning machine includes a turning device, the turning device includes a frame, a rotating divider is arranged inside the frame, and a There is a motor, the output shaft of the motor is connected with the rotary divider, the top of the rotary divider is provided with a discharge cylinder, the bottom of the discharge cylinder is provided with a one-way inflation nozzle, and the bottom of the one-way inflation nozzle is provided with an inflation cylinder , the inflatable cylinder is arranged at the inner bottom of the frame, the top of the discharge cylinder is provided with a restricting cylinder, and both sides of the restricting cylinder are provided with connecting rods, and the connecting rods are fixedly connected to the inner wall of the frame. The invention is equipped with a turning device, which is beneficial to improve the efficiency of turning the gloves inside and outside, is easy to operate, runs stably, further improves the working speed, and effectively reduces the labor intensity of workers.

The invention relates to a wave power generation device which comprises a base frame, wherein a mounting frame is arranged on the base frame, the mounting frame is articulated with a floating body which moves with waves and swings around an articulation axis, and at least one power generation unit is also mounted on the mounting frame; the power generation unit comprises a push rod, and a push rod coupling part is arranged at one end of the push rod; the power generation unit further comprises a coupler in guidance movement match with the push rod coupling part in the length direction of the push rod, one of the coupler and the push rod is articulated at the position of the floating body, which is located on one side of the articulation axis of the floating body, the other one of the coupler and the push rod is articulated with the mounting frame, an articulation point of the coupler, an articulation point of the push rod and an articulation point of the floating body form three vertexes of a triangle, and the coupler and the push rod move in a reciprocating manner when the floating body swings around the articulation axis; the power generation unit further comprises a main power generator arranged on the coupler and / or the push rod coupling part, and the main power generator is a piezoelectric power generator or a linear power generator. According to the wave power generation device provided by the invention, wave energy can be effectively converted and collected, and the collection efficiency is high.

The invention discloses a current comparator with a hysteresis function, belongs to the technical field of the current comparator under an integrated circuit and solves the problem that according a traditional current comparator, a uniform threshold current is employed, a response speed is too fast, so the sensitivity to noise mixed up with a peak current is caused, unnecessary overturn occurs in an output level and a final judgment result is influenced is solved. The current comparator comprises a threshold current control unit 1, a phase inverter INV0, a phase inverter INV1, NMOS transistors MN1-MN5, NMOS transistors MN9-MN10, a PMOS transistor MP3 and a current source Ipeak _current. When the peak current is mixed up with the noise, according to the traditional current comparator, the level is overturned relatively fast, while according to the current comparator with the hysteresis function, a response to the change of the peak current is relatively slow. A current threshold value is adaptively switched each time after the level is overturned.

The invention relates to a large plate lifting plate which comprises a triangular lifting body. The triangular lifting body comprises an isosceles-triangle-shaped lifting plate and a lifting cross beam fixed to the bottom edge of the isosceles-triangle-shaped lifting plate, wherein the width of the lifting cross beam is larger than the thickness of the isosceles-triangle-shaped lifting plate, andthe length of the lifting cross beam is larger than the length of the bottom edge of the isosceles-triangle-shaped lifting plate. The large plate lifting plate has the beneficial effects that multiplehook assemblies are symmetrically arranged on the left side and the right side of the lifting cross beam at the same time, and therefore when a steel wire rope is matched with the hook assemblies, one of the multiple hook assemblies can be selected for cooperation; and in addition, when the steel wire rope is used for lifting a plate, a telescopic linear driving device can be used for driving electromagnets to adsorb the plate, and due to the fact that the two electromagnets generate attraction force after being electrified to generate two stress points, the plate is not likely to be deformed, and the plate is also not likely to be overturned.

The invention relates to the technical field of automobiles, in particular to a welding clamp for a gear shift lever assembly. The welding clamp comprises a connecting plate and a fixing frame. The fixing frame is longitudinally arranged on the edge of the connecting plate and comprises a gear shift lever positioning block and a pressing clamp body. The pressing clamp body is hinged to the top of the fixing frame. A positioning ring is welded to the position, under the pressing clamp body, of the fixing frame. The gear shift lever positioning block is connected with a movable pipe. The movable pipe penetrates through the positioning ring and is hinged to the pressing clamp body. A shifting rod positioning block and a connecting plate positioning block are fixed to the connecting plate. The shifting rod positioning block and the connecting plate positioning block are provided with positioning grooves. A ball fixing hole is formed in the middle of the connecting plate. By the adoption of the technical scheme of the welding clamp for the gear shift lever assembly, positioning is achieved, and welding deformation is reduced.

The invention discloses a novel section bar corner position pulling sheet, a pulling set and a section bar corner position system. The puling sheet comprises a pulling sheet main body. The pulling sheet main body is in a long stripped shape on the whole and bent into a connection section, a transition section and a hook-drawing section from the head end to the tail end; a connection hole is formed in the connection section; the least tail end of the hook-drawing section is provided with more than one draw hook; and straight-extending or bending directions of the draw hooks are opposite to an inflection direction of the connection section. The section bar corner position pulling set comprises a transverse pulling sheet and a vertical pulling sheet, and the two pulling sheets are connected together via a connection screw. The section bar corner position system comprises the section bar corner position pulling set, a transverse frame and a vertical frame, wherein the transverse frame is connected with the vertical frame via the draw hooks by the section bar corner position pulling set. Punching of the draw hook on the plate surface of the hook-drawing section can be unnecessary, and a preserved position can be applied for an empty-avoiding hole; and the section bar combination is uneasy to turn over. The novel section bar corner position pulling sheet, the pulling set and the section bar corner position system can be widely applied to assembling work of section bar corner position of doors and windows.