16results about How to "Improve positioning strength" patented technology

The invention discloses an intelligent luggage case which comprises a case body, a back side plate and a front side plate, the case body is integrally formed by injection molding, rollers are rotatably mounted at two ends of the bottom of the case body, and a driving mechanism for driving the rollers to rotate is mounted in the case body; openings are formed in the two sides of the box body, and the back side plate and the front side plate are installed on the two sides of the openings of the box body respectively; a pulling telescopic rod and a driving telescopic rod are installed in the two sides of the box body in the advancing direction respectively, and containing grooves are formed in the positions, corresponding to a handle of the pulling telescopic rod and a handle of the driving telescopic rod, of the box body in a sunken mode. A fixed seat is mounted at the position, under the pulling telescopic rod, in the box body, and the bottom end of the pulling telescopic rod is fixedly connected with the fixed seat through a first fastener; and the rollers are rotationally mounted on the two sides of the fixed seat. The luggage case has the effect of improving the content space of the luggage case under the condition that the overall strength of the intelligent luggage case is guaranteed.

The present invention relates to the technical field of pipe network construction, and specifically to a device and method for horizontal directional drilling and expansion of trenchless pipes in a water supply pipe network. The device comprises a base and a receiving track movably arranged on the base, and also comprises: a clamping mechanism, one group of which is arranged on each side of the receiving track, the clamping mechanism can clamp and limit the pipe located in the receiving track by storing elastic potential energy, the clamping mechanism is connected to a pressure-applying mechanism arranged on the side of the receiving track; a hydraulic drive mechanism is installed on the base and connected to the receiving track, the hydraulic drive mechanism is used to drive the receiving track to deflect on the base to change the pushing angle of the pipe; during the construction process, the limiting force exerted on the pipe can be automatically enhanced as the pushing angle increases, and there is no need for staff to perform debugging according to specific circumstances, thus eliminating the time-consuming and labor-intensive operation process and improving the construction efficiency to a certain extent.

The utility model provides an anti-paper-jam double-blade creasing machine which comprises a first side plate (13) and a second side plate (14), paper is conveyed by a first conveying rubber roller set (1) and a second conveying rubber roller set (2), the part, needing creasing, of the paper is positioned in a creasing area during creasing, and a first creasing unit (3) and a second creasing unit (4) are adjacently arranged in the creasing area side by side. The first creasing unit (3) is in sliding fit in the first guide groove (38), and the second creasing unit (4) is in sliding fit in the second guide groove (39); the upper end of the first guide groove (38) and the upper end of the second guide groove (39) are both provided with openings, a mounting cross beam (33) is further arranged above the openings, when paper is clamped, the mounting cross beam (33) can be detached and move upwards, and when the mounting cross beam (33) moves upwards, the upper cutter assembly (5) can be driven to move upwards to form a paper taking interval; therefore, when paper is jammed, the paper can be easily processed, and meanwhile, the structure is compact, and the size can be reduced.

This utility model discloses a leveling device for the post-installation of large-diameter rotating slides, comprising an adjusting base, a pressure plate, and anchor bolts. The adjusting base has locking threaded holes on both sides of its top. Connecting studs are welded to both sides and the center of the bottom of the adjusting base, with the studs connected to support feet via threads. Square welding clearance grooves are provided on both sides of the adjusting base, and a rectangular pressure plate is positioned on top of the welding clearance grooves. Locking bolts are threaded to the locking threaded holes on both sides of the top of the pressure plate. Three straight-groove-shaped spot-welded clearance grooves are evenly distributed on the top of the pressure plate. A fan-shaped slide plate is positioned between the adjusting base and the pressure plate, with the adjusting base positioned at the joint of the two slide plates. This utility model facilitates the fixing and leveling of the joint of the slide plates, which is beneficial for the installation of the entire slide, effectively improving the efficiency and accuracy of leveling, and is easy to use.

The utility model provides a foundation pit supporting structure for building construction, which comprises a supporting plate assembly connected on the bottom surface and the side surface of a foundation pit and a plurality of anchoring structures fixed on the supporting plate assembly, and two anchoring structures close to the bottom surface of the foundation pit are connected through a fastening structure. The supporting plate assembly comprises a first supporting plate vertically arranged on the side face of the foundation pit and a second supporting plate horizontally arranged on the bottom face of the foundation pit. A plurality of anchoring structures are arranged on the first supporting plate and the second supporting plate in a penetrating mode. According to the foundation pit supporting structure for building construction, the stability of foundation pit supporting can be improved, the foundation pit wall can be well supported and protected, meanwhile, the occupied area is reduced, and the foundation pit supporting structure has wide practicability.

The utility model relates to the technical field of steel structure accessories, in particular to a steel bridge plate supporting structure which comprises a truss supporting column unit, the top of the truss supporting column unit is fixedly supported at the bottom of a corresponding steel bridge plate, and a vertical center unit is installed in the inner space of the truss supporting column unit. The vertical center unit and the truss strut unit are coaxially arranged, the top of the vertical center unit is fixed to the bottom of the steel bridge plate, side supporting pieces are installed on the left side and the right side of the truss strut unit respectively, and a lower protection piece is fixedly installed on the periphery of the lower portion of the truss strut unit. According to the utility model, through a dual supporting structure consisting of the truss strut units and the vertical central unit, the end part and the middle part of the bridge plate of the steel bridge are effectively supported, the stability and the reliability of supporting the bridge plate of the steel bridge are obviously improved, and the safety of supporting the end part of the steel bridge is ensured.

This utility model discloses a rotatable, ultra-large segmented glass screen design structure, comprising: a frame including vertical ribs, horizontal guides, and a base; the horizontal guides are annular structures, inserted into and positioned at the opening of the vertical ribs, with a first ball bearing disposed on the inner side of the opening; a first guide groove is provided on the end faces of the horizontal guides and the base, with a second ball bearing disposed within the first guide groove; the base is positioned at the upper and lower ends of the vertical ribs and rotatably embedded in a fourth guide groove of the building base, with a third ball bearing disposed within the fourth guide groove, the third ball bearing abutting against the surface of the base; and a glass panel with a circular arc or annular cross-section, slidably inserted into the opening, its upper and lower edges slidably disposed within opposing first guide grooves, with the first and second ball bearings abutting against the surface of the glass panel. This utility model can solve the problems of existing glass screens lacking adjustment function, insufficient flexibility in use, and difficulty in adapting to the requirements of large-scale deployment.

The utility model discloses an anti-slip stopper mechanism, and relates to the technical field of continuous casting of ferrous metallurgy. The stopper rod comprises a mounting arm, a stopper rod body and an anti-falling piece, a U-shaped groove is formed in one end of the mounting arm, the stopper rod body is arranged in the U-shaped groove, an annular through opening is formed in one side edge of the U-shaped groove, a T-shaped through opening is formed in the other side edge of the U-shaped groove, the large opening end of the T-shaped through opening faces inwards, the anti-falling piece comprises a sleeve and a screw, one end of the sleeve is arranged in the large opening end of the T-shaped through opening in a clearance mode, and the other end of the sleeve is connected with the screw. The other end of the sleeve penetrates through the annular through opening and is fixedly provided with a nut, the sleeve is movably connected with the T-shaped through opening and the annular through opening, and a screw head is arranged at one end of the screw rod. Through the design that the hole is formed in the U-shaped groove and the anti-falling piece is matched, the outer wall of the sleeve is in contact with the circumferential side face of the stopper rod, anti-falling protection can be conducted on the stopper rod, the purpose of stable production is achieved, production safety is improved, meanwhile, self-assembly and disassembly are convenient and fast, and normal use and replacement of the stopper rod are not affected.

The present invention discloses an SMT positioning fixture, which relates to the field of surface mounting technology, including a tray, a placement slot is provided on the top of the tray, lateral pushing mechanisms are provided at both ends of the inner side of the placement slot, a driving mechanism is provided on the front side of the top of the tray, a bottom shell is fixedly provided on the bottom of the tray, a lifting mechanism is provided in the middle of the inner side of the bottom shell, limiting mechanisms are provided on both sides of the lifting mechanism, a plurality of adjustable positioning mechanisms are provided on the top of the lifting mechanism, and a trigger mechanism is provided inside the plurality of adjustable positioning mechanisms; the driving gear in the driving mechanism drives the driven gear in the lifting mechanism to rotate, and the lifting plate in the lifting mechanism drives the second screw in the limiting mechanism to rotate through the limiting plate in the limiting mechanism. The present invention reduces the difficulty of positioning while ensuring the positioning accuracy, and has higher positioning strength, and will not cause the motherboard to deviate during the positioning process.

The invention discloses a novel framework sealing gasket and an engine, the sealing gasket is located between two mutually independent connecting pieces, the sealing gasket comprises a gasket main body and a supporting framework connected with the gasket main body, the gasket main body comprises a sealing part abutting against the connecting pieces, the sealing part is oppositely provided with two sealing lips abutting against the two connecting pieces, and the supporting framework is connected with the gasket main body. Each sealing lip includes an extended first state and a compressed second state. The supporting framework is arranged to strengthen the positioning strength of the gasket body and assist in strengthening the rigidity of the sealing gasket, the two sealing lips are arranged on the sealing part to abut against the two connecting pieces correspondingly, the contact face between the sealing gasket and the connecting pieces is further reduced, sealing gasket bonding is avoided, and the sealing effect is improved. The first state and the second state of the sealing lip are correspondingly matched with the gap change between the two connecting pieces, so that when the connecting pieces are in the cold state and the hot state, the sealing lip can achieve gap sealing between the two connecting pieces, and the good and stable sealing effect is achieved while bonding is avoided.

The utility model relates to the technical field of skateboard accessories, and discloses a wheel limiter which comprises a main side plate and two first limiting strips arranged on the main side plate at intervals, one ends of the two first limiting strips are connected with the lower portion of the main side plate, and a wheel containing space is formed between the main side plate and the two first limiting strips. The wheel containing space is used for containing wheels of the sliding plate, and a mounting groove is formed in the main side plate, communicates with the wheel containing space and is used for mounting an axle of the sliding plate. The utility model further discloses a wheel limiting device which comprises a connecting rod and two wheel limiters, the two ends of the connecting rod are connected with the main side plates of the two wheel limiters respectively, and the connecting rod and the wheel containing space do not interfere with each other. The axle of the sliding plate can be directly clamped into or moved out of the mounting groove for mounting and dismounting, tools are not needed, and the operation is convenient; when the wheels are located in the wheel containing spaces, the main side plates and the first limiting strips are attached to the wheels on the outer sides of the wheels to limit rotation of the wheels, a beginner is prevented from falling down due to the fact that the beginner loses balance when standing on the plate body, and the safety of skateboard exercise is improved.

The utility model provides a structure for preventing light leakage and dislocation at a suspension loop of a liquid crystal module diaphragm, which solves the technical problem that the existing liquid crystal module structure causes larger distance between a back plate and an optical diaphragm and light leakage due to production errors, and can be widely applied to the field of liquid crystal display modules. The liquid crystal display module specifically comprises a liquid crystal panel, a metal back plate is arranged on the back face of the liquid crystal panel, the periphery of the liquid crystal panel is wrapped by the side edges of the metal back plate, a plastic middle frame is arranged on the periphery of the metal back plate in a matched mode, the liquid crystal panel comprises an optical film and a light guide plate, and lugs are additionally arranged on the two bottom corners of the optical film; limiting pieces are arranged between the metal back plate and the liquid crystal panel and matched with the lugs, each limiting piece comprises a connecting transverse plate, a first clamping edge and a second clamping edge are arranged at the two ends of each connecting transverse plate, the first clamping edges are parallel to the connecting transverse plates, and the second clamping edges are perpendicular to the connecting transverse plates. And the distance between the first clamping edge and the second clamping edge is matched with the width of the lug.

The invention relates to the technical field of pipe network construction, in particular to a water supply pipe network trenchless pipeline horizontal directional drilling expansion device and method.The water supply pipe network trenchless pipeline horizontal directional drilling expansion device comprises a base and a bearing rail movably arranged on the base, and further comprises clamping mechanisms arranged on the two sides of the bearing rail respectively, the clamping mechanism can clamp and limit a pipeline located in the bearing rail by storing elastic potential energy, and the clamping mechanism is connected with a pressure applying mechanism arranged on the side portion of the bearing rail. The hydraulic driving mechanism is installed on the base and connected with the bearing track, and the hydraulic driving mechanism is used for driving the bearing track to deflect on the base so that the pushing angle of the pipeline can be changed; in the construction process, the limiting force borne by the pipeline can be automatically enhanced along with the increase of the pushing angle, a worker does not need to conduct debugging according to specific conditions, the time-consuming and labor-consuming operation process is omitted, and the construction efficiency can be improved to a certain degree.

The utility model discloses a cylindrical magnetic core machining positioning device convenient to reverse, and relates to the field of magnetic core machining, the top of a base is connected with a seat stand, the top of the seat stand is movably connected with a supporting rod, the side face of the supporting rod is fixedly provided with a positioning block, and the side face of the seat stand is provided with a clamping mechanism; according to the positioning device convenient to reverse and used for cylindrical magnetic core machining, a motor drives a seat table to rotate, and a second rotating groove and a rotating block rotate, so that rotation of the seat table is achieved, direction replacement of a machined part is driven, the operation process is simplified, the machining efficiency is improved, air in an air cushion is conveyed into an air bag through rotation of the seat table, and the machining efficiency is improved. And secondly, after an extrusion groove is used for a long time and is abraded, a rotating block is pushed to drive a clamping block to rotate out of a clamping groove, rapid disassembly and replacement of the extrusion pad are achieved, and the machining efficiency of a machined part is improved in a disguised mode.

The door handle installation structure and the lock used therein are characterized in that they include a door handle and a positioning seat, the positioning seat includes an outer shell, the outer shell includes an outer shell wall body arranged axially and a radial wall body arranged radially, and the radial wall body is provided with a central hole of the barrel bottom; the positioning seat also includes a door handle transmission component arranged in the outer shell, and the door handle transmission component is used to transmit the rotational power of the door handle; the door handle transmission component includes a shaft portion and a connecting portion connected to the front of the shaft portion, the shaft portion located at the rear portion is rotatably arranged on the central hole of the barrel bottom, and the connecting portion located at the front portion is connected to the door handle, the outer shell wall body and the door handle are wedged with each other, and a wire passing channel is arranged in the outer shell.

The utility model provides a kind of fire pump hand lifting support, belong to water pump technical field.It solves the problem of existing support assembly inconvenience.The fire pump hand lifting support of the utility model includes the base for horizontally supporting fire pump, base is equipped with hand bracket, hand bracket has two and is set along the width direction of fire pump and is arranged in front and back parallel, hand bracket both ends are all fixedly connected with base, support frame is fixed on the both ends of hand bracket, handle is hingedly connected on each support frame, hand bracket is integrated structure, hand bracket is composed of holding pole and connecting rod along the length direction of fire pump and is distributed continuously left and right, holding pole is inverted N shape, connecting rod is below right end of holding pole, connecting rod right end is vertically arranged, connecting rod right end and holding pole left end respectively constitute the both ends of hand bracket.The fire pump hand lifting support of the utility model is convenient to assemble.