50results about How to "Convenient on-site operation" patented technology

The invention provides a splicing structure and a splicing method of prefabricated bridge piers and a prefabricated bearing platform. By utilizing the joggling of hollow steel tubes in first concave grooves in the bottoms of the prefabricated bridge piers and concrete filled steel tube tenons enclosed by the inner walls of annular grooves in the top of the prefabricated bearing platform, on one hand, favorable positioning effects are achieved for the mounting, on the bearing platform, of the prefabricated bridge piers, and on the other hand, the shear capacity and the flexural capacity at splicing positions are improved; post-poured concrete is poured into the annular grooves to enwrap the splicing positions of the prefabricated bridge piers and the prefabricated bearing platform; the prefabricated bridge piers and the prefabricated bearing platform are connected into a whole; an overall stress structure is ameliorated; the splicing strength of the prefabricated bride piers and the prefabricated bearing platform is greatly improved, and is not less than the strength of a cast-in-place bridge pier. By adopting a way of splicing the prefabricated bride piers and the prefabricated bearing platform, the field pouring workload of concrete is effectively reduced; the field operation is facilitated; a road is not occupied; influences on an urban traffic environment during the operation are effectively relieved, and meanwhile, a construction period of a bridge is shortened.

The invention provides a railway crane with outer rail superelevation levelling function and belongs to the crane field. The crane realizes levelling by arranging an arched beam levelling device between an upper vehicle frame and a lower steering frame. The device pushes the vehicle frame by a piston rod base matched with a double-boom oil cylinder such that the vehicle frame relatively slides along an arched beam matched therewith through skid shoes so as to gradually reduce the inclination degree of the vehicle frame above the arched beam to realize levelling; synchronously, as the double-boom oil cylinder can rotate with certain angle around the short shafts at the two sides of a cylinder with respect to the arched beam and the arched beam base plate can also slightly rotate with respect to the steering frame, the vehicle frame and the upper components can be levelled to be horizontal even though the arched beam and the steering frame connected to the lower portion of the arched beam are inclined. The invention solves the problem that the crane integrally inclines when the crane works at a railway curve by an integrated levelling device and ensures the rated hoisting performance and working safety when the crane works at a railway curve.

The invention discloses an inflatable hole sealing device for drilling and slip casting. The inflatable hole sealing device comprises a body and a flexible airtight cloth cylinder. The middle part ofthe body is recessed inwardly in a circumferential direction to form a reducing part; and the two ends of the flexible airtight cloth cylinder are connected to the two ends of the reducing part in anairtight manner. A protection layer coats the outer side of the reducing part along the outer circumference of the body; an accommodation cavity is formed between the protection layer and the reducingpart; and the cylinder body of the flexible airtight cloth cylinder is arranged in the accommodation cavity. Convex parts are arranged at the body at the two ends of the reducing part along the peripheral direction; guiding rollers are arranged at the end surfaces of the outer sides of the convex parts uniformly; a concave arc surface is formed at one side, facing the reducing part, of each convex part; and an outer conical surface is formed at one side, away from the reducing part, of each convex part. Meanwhile, the invention also discloses a using method of the inflatable hole sealing device. The inflatable hole sealing device has technical effects of good sealing performance, good scraping prevention effect, and high durability.

The invention discloses a height adjustable novel building support which comprises an inner column (1) and a sleeve (3). The inner column (1) is arranged in the sleeve (3), and does axial lifting movement with a rolling wheel (4) as supporting in the inner column (1). The inner column (1) drives the rolling wheel (4) to do radial rotation with a rolling wheel shaft (5) as a rotating center in a guide groove of the inner column (1). Compared with the prior art, the height adjustable novel building support has the advantages of being simple in structure, enabling adjustment of an upright column to be more convenient, facilitating scenic operation of workers, being capable of realizing large-distance adjustment and close-range fine adjustment types, improving work efficiency, carrying out axial positioning and radial positioning of the sleeve and the upright column, and avoiding inconvenience of construction due to shake and axial rotation in the using process.

The invention relates to the field of potential dame risk detection, and particularly relates to a hardened dam potential risk detection method and device applying the parallel electrical survey. The device comprises an electrode for an electrical prospecting apparatus, wherein the frame inside the electrode comprises a copper bar and a transfusion duct; conductive sponge and conductive lint sequentially coat the outer part of the middle part of the electrode. The method and the device have the advantages of convenience in field operation, flexibility in operation, low labor intensity and wide application environment since a charging mode electric hammer is adopted to drill the surface of hardened dam; the drilling hole has a small diameter, so that the work for repairing the hardened surface layer of the dam in later phase can be facilitated.

The invention discloses a novel height-adjustable building bracket which comprises an inner cylinder (1) and a sleeve (3), wherein the inner cylinder (1) is mounted in the sleeve (3); a positioning pin (8) passes through a lifting adjusting slot (6) and is inserted into a positioning hole (11) of the inner cylinder (1); a force is applied to the positioning pin (8) so as to cause the positioning pin (8) to vertically move in the lifting adjusting slot (6) of the sleeve (3); and an adjustable nut (2) is rotated for driving the positioning pin (8) and the inner cylinder (1) to vertically move. Compared with the prior art, the novel height-adjustable building bracket has the beneficial effects: 1, the structure is simple, the adjustability of the vertical column is more convenient, and convenience is brought to field operation of workers; 2, the long-distance adjustment and the short-distance fine adjusting mode can be realized and the working efficiency is increased; and 3, the axial direction and the radial direction of the sleeve and the vertical column are positioned, so that the construction inconvenience caused by the shaking and axial rotating of the bracket during a use process is avoided.

The invention discloses a locating device of an energy converter used for detecting the crack depth of a concrete member, wherein scales are marked at the side surface of a base ruler by taking 50mm as the minimum unit; a longitudinal slot (6) facilitating a connecting line of the energy converter to penetrate is arranged in the middle of the bottom surface of the base ruler; a first cursor sleeve (5) and a second cursor sleeve (2) that can slide freely are sheathed on the base ruler; the first cursor sleeve (5) and the second cursor sleeve (2) are respectively provided with a first fixing knob (3) and a second fixing knob (7) that are respectively used for fixing the first cursor sleeve (5) and the second cursor sleeve (2) on the base ruler; and the bottom surfaces of the first cursor sleeve (5) and the second cursor sleeve (2) are respectively provided with a mounting hole used for installing the energy converter. With the adoption of the locating device, the fast and accurate location for the energy converter in the crack depth detection site can be realized, thereby avoiding the trouble caused by the location by adopting a common steel ruler and a marking pen originally, saving the on-site operation time, improving the observation efficiency, improving the location accuracy and reducing the measured deviation.

The invention discloses a gas leakage concentration quantitative detection device and method based on an infrared thermal imaging technology. The device comprises a passive thermal infrared imager, aconcentration-measured value quantitative relation model is pre-stored in the passive thermal infrared imager, and a portable standard infrared air chamber is installed in front of a lens of the passive thermal infrared imager in a replaceable mode. During on-site inspection, the method adopts the passive thermal infrared imager to acquire three groups of data respectively, i.e. an infrared imageof a leakage point, an infrared image of a leakage-free scene and an infrared image of the leakage-free scene after a standard infrared air chamber is additionally arranged, and the passive infrared thermal imager can calculate the gas concentration of the on-site leakage point in real time according to the three groups of data and in combination with the concentration-measured value quantitativerelation model.

The invention relates to a restoring method of an eccentric bushing, which comprises a cast steel matrix on which Babbitt alloy composite layers are poured and comprises the following steps of A, preparing, cleaning and washing a to-be-restored eccentric bushing and manufacturing a restoring tool; B, removing the original Babbitt alloy composite layers; C, performing flaw detection on the cast steel matrix subjected to the treatment in the step B; D, protecting a non-welding position; E, blocking slots and holes on the cast steel matrix by welding; F, overlaying the cast steel matrix by aluminum bronze to prepare a semi-finished product of the eccentric bushing; and G, machining. The method has the beneficial effects that the operation is simple, and field operation is facilitated; the restoring period is short, and the cost is low; the restored eccentric bushing is good in bonding strength; local or overall repeated restoration utilization is realized. The invention also discloses the eccentric bushing, which comprises the cylindrical cast steel matrix, and the inner wall and the outer wall of the cast steel matrix are overlaid with the Babbitt alloy composite layer respectively. The eccentric bushing has the benefit that the service life is prolonged by more than one time that of the original product.

The invention discloses a glass steel pipeline on-site repair assembly and method. The assembly comprises a connection structure, a repair pup joint and a conversion pup joint. One end of the conversion pup joint is connected with the connection structure, the other end of the conversion pup joint is connected with the repair pup joint, the repair pup joint is connected with a glass steel pipelineto be repaired, the connection structure comprises a connection sleeve, a connection pup joint, an inner core pipe and an outer core pipe, the connection pup joint is in a hollow cylinder shape, oneend of the connection pup joint is fixedly provided with an outer sleeve pipe coaxial with the connection pup joint, the inner core pipe is fixedly arranged on the portion, on the inner side of the outer sleeve pipe, of the connection pup joint, the inner core pipe and the outer sleeve pipe are coaxially arranged, an annular connection cavity is formed between the inner core pipe and the outer sleeve pipe, the end of the glass steel pipeline is clamped in the annular connection cavity, and the other end of the connection pup joint is sleeved with a connection sleeve. When the glass steel pipeis repaired, manufacturing of a connector of the pipeline to be repaired, connection between the connector on the pipeline to be repaired and the conversion pup joint and connection between the conversion pup joint and the connection pup joint can be rapidly completed, precious time is saved for on-site urgent repair, and the construction efficiency is improved.

The invention, which relates to the field of civil engineering safety monitoring, provides a method and device for arranging a deformation monitoring identifier. The method comprises the following steps that: a distance between a transmitting end of a deformation monitoring identifier transmitting device and the surface of a target object is kept to be within a target distance range; and at leastone deformation monitoring identifier is transmitted to the target surface by the deformation monitoring identifier transmitting device, wherein the deformation monitoring identifier is fixed on the target surface and is monitored to obtain deformation information when the target surface deforms. According to the invention, the operation becomes convenient; the portability is high; and the time and effort are saved. A nail shooting device is provided with an energy source, so that field working becomes convenient; the method has the safe and reliable fastening effect; and the method and devicecan be applied to monitoring objects with different hardness values, like a soil layer, a brickwork, concrete, and the steel.

The invention provides a wireless remote control wire feeder of a carbon dioxide welding machine, belongs to the technical field of welding machines, and aims to solve the problems that a main machine of an existing welding machine is connected with a wire feeder through a six-core wire, and the six-core wire is easily damaged in the field operation process to influence operation. The wire feeder comprises a wire feeder body and a wireless remote control box. The wireless control box is fixedly arranged on the wire feeder body; the wireless control box comprises a central control board, and an emission controller, a motor controller, a gas electromagnetic valve controller, an arc suppression current controller and a lithium battery which are electrically connected with the central control board; and further comprises a receiving controller in wireless communication connection with the transmitting controller. According to the wireless remote control wire feeder, wireless control over the wire feeder is achieved, so that the fault rate of equipment is greatly reduced while the wire cost is saved; an arc suppression voltage and an arc suppression current do not need to be adjusted on the main machine, so that the field operation is very convenient, and the operation efficiency is improved.

The invention discloses a trackside equipment analog quantity test method, relates to the technical field of railway signal circuits, and aims to efficiently complete analog quantity information acquisition and test and provide corresponding debugging means and maintenance suggestions, so that field operation and maintenance of workers are greatly facilitated. According to the main technical scheme, a trackside equipment analog quantity testing tool is built in advance, and the structural design of the testing tool at least comprises a plurality of onboard connectors, a battery, a terminal processor and a display screen; the onboard connector provides an onboard interface, and the onboard interface is used for correspondingly arranging the analog quantity acquisition unit and providing a power interface; the power interface is connected with the battery and used for providing working power for the analog quantity acquisition unit; the terminal processor comprises a master terminal processor and a slave terminal processor which establish data communication with each other. The terminal processor establishes data communication with the analog quantity acquisition unit and establishes data communication with the display screen. The method is mainly applied to the analog quantity test of the trackside equipment.

The invention discloses an automatic steel rail inclined joint electrical arc welding method and device. According to the automatic steel rail inclined joint electrical arc welding method, steel rail weld joints and steel rail axes are inclined at a certain angle for welding. By means of the method, the weld joints only occupy part of each working section and bear all loads together with other parts of steel rail base metal, so that the stress state during working of the weld joints is advantageously improved and the operation safety of welded joints is further improved. The steel rail inclined joint welding method is realized through the automatic steel rail inclined joint electrical arc welding device. The welding device is composed of a rack, traveling wheels, a clamping air cylinder, a welding machine head, a copper block assembly, an actuator, an electrical control system, a pneumatic system, a ground wire pressing head, a welding power source, a ceramic base plate and the like. By means of the automatic steel rail inclined joint electrical arc welding method and device, the operation safety of the welded joints is advantageously further improved, field operation is facilitated, the method and the device adopt to features of inclined joint welding, the device can be used movably on site, and the full automation function is achieved, so that influence of human factors is avoided.

The invention discloses a pipeline opener. The pipeline opener consists of a bracket, opening claws and a pull rod, wherein the positions, which correspond to pipelines at the two sides of a pipelineelement, of the bracket are equipped with two arc-line-shaped shoulders; the positions, which correspond to the rest two sides of the pipeline element, of the bracket are equipped with two pivotal shafts; the outer sides of the top ends of the opening claws are equipped with opening angles; the positions, which corresponds to the pivotal shafts, of the inner sides of the opening claws are equippedwith slide-on curved surfaces, and pull rod through holes are formed in the tail ends of the opening claws; at least one end of the pull rod is equipped with threads, and the pull rod is rotatably matched with a locking nut; the two opening claws at the same side are in sliding fit to the corresponding pivotal shafts; the opening angles at the front ends of the opening claws separately abut against pipeline flange end surfaces at the two sides of the pipeline element; and the tail ends of the opening claws are locked through the pull rod which is in through fit. The pivotal shafts, the shoulders and the bracket are of an integrated structure, and the pivotal shafts and the shoulders are oppositely arranged in pair by taking the pipeline element as the center. The pull rod and the openingclaws are of separate structures, so that a movable assembly that one pull rod is in through fit to the two supporting claws can be pre-assembled, and also can be directly assembled on the site. The positions, which correspond to the slide-on curved surfaces of the opening claws, of the pivotal shafts are equipped with slide slots. The pipeline opener is scientific and reasonable in structure, andis beneficial for replacing the pipeline element.