120results about How to "Lap firmly" patented technology

The invention provides an automatic adobe stacking device. The device comprises an automatic control device, an adobe group conveying mechanism, a horizontal travelling mechanism, a vertical lifting mechanism arranged on the horizontal travelling mechanism, a rotation mechanism fixed on the lower end of the vertical lifting mechanism and an adobe grabbing mechanism fixed on the lower end of the rotation mechanism, wherein the adobe group conveying mechanism is arranged below the adobe grabbing mechanism; and the automatic control device is respectively connected with the adobe group conveyingmechanism, the horizontal travelling mechanism, the vertical lifting mechanism, the rotation mechanism and the adobe grabbing mechanism so as to control the operation of the mechanisms. The adobe automatic stacking device has the advantages of accurate positioning, stable direction steering, neatly stacked adobes, firmly overlapped upper and lower adobes, simple structure, high automatic degree and easiness for operation, so that the labor intensity of workers is reduced, the production efficiency of stacking is greatly improved, and the stacking quality of adobe stacks is improved.

The invention relates to a mobile detecting robot, in particular to an insulator detecting robot which comprises a first crawler wheel, a box body, a second crawler wheel, a variable pitch telescoping mechanism and a probe driving mechanism, wherein the variable pitch telescoping mechanism is installed on a box body; the first crawler wheel and the second crawler wheel are positioned at two sides of the box body and respectively articulated with the variable pitch telescoping mechanism; the first crawler wheel and the second crawler wheel are respectively connected with a first stroke sensor and a second stroke sensor; and the probe driving mechanism is arranged below the box body. The invention adopts the variable pitch telescoping mechanism which can telescope and change, can be adaptable to changes in distance of an horizontal twin insulator string, has good safety protection performance, high travelling speed, simple stringing operation, small abrasion of an insulator coating and reliable lap joint of a probe, and is suitable for electrified detection of the insulator.

The invention relates to a reactive self-adhered ethylene-propylene-diene monomer waterproof roll which consists of a surface waterproof layer, a middle self-adhering layer and a bottom isolating layer, wherein the surface waterproof layer is formed by co-mixing ethylene-propylene-diene monomer rubber, zinc oxide, sulfur, stearic acid, highly wear-resistant carbon black, processing oil and an accelerator DM, the middle self-adhering layer is an active self-adhered sizing material which is formed by co-mixing asphalt, a softener, a tackifier, butyl rubber IIR (Isobutylene-Isoprene Rubber), butadiene styrene rubber, an activator and filler, and the bottom isolating layer is a PET (Polyethylene Terephthalate) thin film. As the middle self-adhering layer which contains asphalt and active macromolecular active components and has the active reactive self-adhered sizing material is arranged in the upper layer on the inner surface of the surface waterproof layer which takes ethylene-propylene-diene monomer as a main material, so that edges of the roll and the roll and the base layer of concrete are directly adhered by the middle self-adhering layer without any adhesives in match. The generated waterproof layer has a service life effect which is equal to that of a main body material, so that the roll is an ideal upgrading product of existing single ethylene-propylene-diene monomer waterproof roll.

The invention discloses a mining elevator lapping platform suitable for a flexible guide rail and a mining elevator lapping method. The lapping platform mainly comprises a power pack and a support claw pack, wherein the power pack comprises an explosion-proof motor and a bevel gear; the support claw pack comprises a mounting plate, a support, a screw rod, a screw nut, a support rod, a connecting rod, a support claw, a guide rail and a guide rail frame; and the support claw pack and the power pack are all installed on a cross beam below an elevator car. The lapping method is as follows: the sharing between a lapping platform and a plurality of horizontal planes is realized, the self locking function is achieved, the reliable connection of the lapping platform in the plurality of horizontal planes is met, the reliable lapping between the elevator car and a hoistway layer door is realized, and the mining elevator lapping platform plays the role of safety protection, convenience in entrance and exit of the elevator for cargos and people. The mining elevator lapping platform has a simple structure, is accurate in control, convenient to install and maintain, stable in running and improves the safety and reliability of moving the load in and out of the elevator car.

The invention discloses a high-efficiency fire-resistant heat-dissipating cable. Shielding tapes are coated and connected mutually by wave-shaped overlapped segments at the two sides to form a shielding layer; and heat collecting chambers are arranged between the shielding layer and a heat collecting sheath and are communicated to the outer surface of the cable through cooling holes. Armored steeltapes are coated and connected mutually to form a metal armor layer by steel tape overlap-joint segments at the two sides; embedded holes are formed in the steel tape overlap-joint segment at one side of each armored steel tape; and embedded bosses are arranged at the steel tape overlap-joint segment at the other side of the armored steel tape. When overlapped joint is performed, the embedded bosses are embedded into the embedded holes. Besides, a rare-earth fire-resistant layer is made of a material comprising 8wt% to 12wt% of fluororubber, 5wt% to 8wt% of aluminum hydroxide, 2wt% to 4wt% ofrare earth oxide, 1wt% to 2wt% of glycerol, 2wt% to 4wt% of silicon carbide, 3wt% to 6wt% of lanthanum phosphate, 6wt% to 8wt% of zirconic acid gadolinium, and remainder being epoxy resin. The cablehas the good high-temperature-resistant and flame-retardant performances; heat can be dissipated efficiently; and the cable has the stable structural integrity and the good mechanical performance.

The invention discloses an end connection mechanism for an embedded power supply system. The end connection mechanism comprises two embedded supports and a bottom plate. Each embedded support comprises a body and a base; a conducting rail is arranged over the body of the embedded support. The embedded supports are fixedly mounted on the bottom plate through their bases. A connection box which can also be fixedly mounted on the bottom plate is disposed between the end embedded supports. The connection box is internally provided with a junction chamber. Two ends of the connection box are in connection fit with the adjacent ends of the embedded supports, respectively. The bottom plate is provided with cable holes admitting passage of cables. The end connection mechanism with the structure is simple in structure and convenient to mount, and the requirement for the level of installation of the embedded supports and the connection box is met; the embedded supports and the bottom plate are fixed by press-fitting of a mounting pressure plate, no structural damage of the embedded supports is required, the production process of the embedded supports is simpler, and the structural strength of the embedded supports can be improved.

The invention discloses a detection robot for a suspension porcelain insulator string. The detection robot comprises a clamping mechanism, a lifting mechanism and a detecting mechanism, wherein the clamping mechanism comprises an upper clamping mechanism and a lower clamping mechanism, the lifting mechanism is arranged between the upper and the lower clamping mechanisms, and the detecting mechanism comprises a probe drive device which is arranged on the upper clamping mechanism and a detector triggering device which is arranged on the lower clamping mechanism; the upper and lower clamping mechanisms are respectively provided with a flexible insulation paw which is matched with the outer edge of an insulator shed; the clamping mechanism, the lifting mechanism and the detecting mechanism are connected with the controller respectively through a circuit. The robot is designed by adequately utilizing appearance characteristics of the suspension porcelain insulator string, and the clamping paws are respectively made of rubber materials, so that abrasion on the insulator is small, and short-circuited insulators are fewer; the robot has good safety and a good protective value and the insulators are simple to string, the movement speed is stable, accuracy in detection is realized, and the robot system can move along the direction of the suspension porcelain insulator string and can be electrified for detection.

The invention discloses a straightening and bending welding device for frame spokes of a safety net cover. The device comprises a machine table, a rack arranged on the machine table, a welding machineand a control system, wherein the rack is fixed at the rear part of the machine table; a forward-facing cantilever is arranged at the upper part of the rack; a driving disk capable of rotating at equal time intervals is arranged on the machine table and at the position below the cantilever; a support column is arranged on the machine table and at the position on the front side of the driving disk; a steering beam of which the middle is rotatably connected onto the support column is arranged at the top end of the support column; a rotatable positioning disk is arranged at each of the two endsof the steering beam; each positioning disk comprises a base plate and an outer circle matched with the outer diameter of the border of the safety net cover; a plurality of arc-shaped positioning padsare uniformly arranged on the inner side of each of the outer circles; the connection width between every two adjacent positioning pads is matched with the frame of the safety net cover; and the arclength of each of the positioning pads corresponds to the rotation angle of the driving disk at every interval, and each of the positioning pads is lower than the frame of the safety net cover. According to the straightening and bending welding device for frame spokes of the safety net cover, the border and the frame are accurately positioned through the positioning disks, the welding stability isimproved, and both the welding quality and quality stability are improved.

A geomembrane with double coarse surfaces comprises a geomembrane main body (1), both sides in the vertical direction of the geomembrane main body (1) are provided with lap joint plain edges (3); both sides of the geomembrane main body (1) are coarse surfaces (2) which are of bulged coarse surfaces; the geomembrane main body (1) is 0.8-2.5mm in thickness; the bulges are protruding nails or salient points, and are 0.5-0.6mm in altitude. The surfaces of the geomembrane with double coarse surfaces are coarse surfaces, so that the geomembrane is high in membrane surface friction resistance, excellent in antiskid effect, and high in engineering applicability; both sides in the vertical direction of the geomembrane with double coarse surfaces are provided with the lap joint plain edges, so that two adjacent geomembranes are convenient to lap; the lap joint is reliable, a non-leakage lap joint of two membranes is achieved, the problems of polishing work load required firstly in a lap joint process of membranes with coarse surfaces and the damage of the membranes caused by the polishing treatment are reduced.

The invention discloses a non-asphaltic base construction method for a pre-paving type high-molecular self-adhesive film waterproofing membrane for a basement floor. The method comprises the following steps of (1) repairing of a protection wall, (2) treatment of a foundation layer, (3) paving of the membrane, (4) bundling of reinforced bars and (5) concrete pouring. Compared with a traditional method, the construction procedures of the pre-paving type high-molecular waterproofing membrane are simple, requirements for treatment of the foundation layer are not high, primer treatment, a leveling layer and a protection layer are not required, the project efficiency is greatly improved, and the construction period is shortened; construction operation is convenient and flexible, the construction process is easy to master, pertinence is high, and the working efficiency is high; and the requirements for construction devices are low, proportioning can be conducted in advance, unnecessary waste during construction is reduced, and the economic benefits are remarkable. The pre-paving type high-molecular waterproofing membrane is low in weight is low and reliable in butt joint, has high tensile strength and good waterproof effect compared with a traditional waterproof membrane, can obviously improve the effect of a waterproof project, and reduces the expenses of later maintenance; and as no primer operation or fire operation exists during construction, potential safety hazards are eliminated, resources are saved, and the environment friendliness is improved.

The invention discloses a buffer mechanism for electromechanical equipment maintenance, and relates to the technical field of electromechanical equipment maintenance. The buffer mechanism comprises a base; two support rods are fixedly connected to the upper surface of the base; the top ends of the support rods penetrate through first through holes formed in the upper surface of a fixed plate, and are fixedly connected with the bottom end of an extension device; the top end of the extension device is fixedly connected with the upper surface of the inner wall of a second shell; the lower surface of the second shell is joined with the upper surface of the fixed plate; and the lower surface of the fixed plate is fixedly connected with the top end of a second spring. Through coaction of a second movable rod, a rotating shaft, a thread column, a thread cap, a connecting rod, an extrusion plate, a movable plate, a slide rod, a slide sleeve and a third spring, the buffer mechanism for electromechanical equipment maintenance realizes the vibration amplitude adjustment of the second spring, so that the process of adjusting the buffer mechanism of electromechanical equipment according to actual conditions is realized, and the maintenance of the electromechanical equipment is guaranteed.

The invention relates to a bridge ladder system with a compensation function and a use method thereof, belongs to the technical field of marine ship operation and maintenance equipment. A bridge ladder and a base are arranged, the bridge ladder comprises a fixed slide and a sliding slide, the fixed slide and the sliding slide are connected in a sliding manner, the bridge ladder is hinged with the base, and the base is connected with a motion compensation platform through a swing mechanism. The bridge ladder system can realize compensation motion of three degrees of freedom of pitching, stretching and rotating through the control of a main control computer, so that the bridge ladder and a landing platform are always in a relatively stable motion state, and the rapid and safe transfer of personnel, goods and equipment is realized.

The invention discloses a punching polyethylene self-adhered waterproof coiled material as well as a preparation method and a using method thereof. A punching area and a self-adhering area are arranged on two sides of the coiled material in the length direction of the coiled material respectively; adhering holes are formed in the punching area at intervals, and the adhering holes are through holes; the self-adhering area is coated with a self-adhering adhesive. The preparation method comprises the following steps: in the production processing process, processing the coiled material on an assembly line in the punching area and the self-adhering area, forming the adhering holes in one side of the coiled material, and performing blade coating on the self-adhering adhesive on the other side ofthe coiled material. The using method comprises the following steps: (1) clearing a base layer; (2) paving cement gel, and adhering the punching area; (3) leveling the adhered punching area, so thatthe adhering holes can be filled with the cement gel; (4) paving and pasting the self-adhering area onto the punching area in a lapping manner, so that two punching polyethylene self-adhering waterproof coiled materials are tightly and smoothly connected. Through the technical scheme, false adhesion can be avoided to cause cracking, layering and falling of a waterproof layer.

The invention discloses a bridge ladder buffer device. According to the bridge ladder buffer device, a lap joint target includes but not limited to various offshore platforms, and by using the bufferdevice, impact to a bridge ladder, which is resulted when the lower surface of the bridge ladder contacts the upper surface of the lap joint target in the bridge ladder descending process, can be effectively alleviated, so that the service life of the bridge ladder can be prolonged. In addition, when the included angle between the bridge ladder and the upper surface of the lap joint target is changed, a vertical buffer device is rotated around a rotating shaft, then good contact of the lower surface of the bridge ladder buffer device with the upper surface of the lap joint target can be ensured, and the security of the bridge ladder in the use process can be improved. In addition, a pressure value which is transmitted from a monitoring data transmission device and acquired by using a positive pressure sensor can be acquired by using monitoring equipment by an operator, if the pressure value is within a preset security range, the bridge ladder is in stable lap joint and can be used normally at the moment, and security accidents caused by unstable lap joint of the bridge ladder can be effectively avoided.

The invention discloses an aligning bending welding integrated device which comprises a steel wire releasing device, a base, a welding machine and a control system, wherein a middle frame and a rack are fixed on the base; an aligning device is arranged at one end of the top of the middle frame; a cutting device is arranged at the other end of the middle frame; a forward cantilever is arranged on the upper part of the rack; a copper driving disc capable of anticlockwise rotating at equal intervals is arranged under the cantilever; a steel ring positioning device capable of contracting inward and expanding outward is arranged on the middle part of the driving disc; a welding block and a compressing block which are controlled to move up and down by the control system are arranged on the cantilever; the welding block is aligned with a steel ring positioned on the steel ring positioning device and is welded with an anode of the welding machine; a cathode of the welding machine is connected with a slide block in sliding connection with an outer circle of the driving disc; the compressing block is aligned with the aligning device for aligning and conveying to the steel wire above the driving disc; an end part of the steel wire is overlapped on a steel ring; and an overlapped position is located under the welding block. The aligning bending welding integrated device is capable of increasing the production efficiency, reducing the required manpower and reducing the labor cost and space occupancy rate.

The invention discloses an optical cable steel strip longitudinal wrapping device which comprises a working platform, four die carriers, a horn die, a lap-joint die and a fixed-diameter die. Two sliding grooves are formed in the working platform. The four die carriers are sequentially installed between the two sliding grooves from left to right, each die carrier is composed of a die carrier base plate and an upper die carrier installation base, a die holder is installed in each upper die carrier installation base, an adjusting hole is formed in the upper end of each die holder, a first adjusting bolt is arranged on the installation base on each die carrier, the lower end of each first adjusting bolt is correspondingly screwed into the corresponding adjusting hole, adjusting grooves are formed in the front end of each die carrier base plate and the rear end of each die carrier base plate, second adjusting bolts are arranged in the adjusting grooves in a penetrating mode, the lower ends of the second adjusting bolts are fixed onto the sliding grooves, the horn die is installed on the first die carrier and the second die carrier, the lap-joint die is installed on the third die carrier and the fixed-diameter die is installed on the fourth die carrier. According to the optical cable steel strip longitudinal wrapping device, the die holders are adjusted in the front-and-back direction, the left-and-right direction and the up-and-down direction, therefore, during steel strip longitudinal wrapping, lap joint is firmer and steel strip breakage accidents are greatly reduced.

The invention relates to a solar photovoltaic tile which comprises a tile base body. The tile base body is composed of a solar cell panel, a transparent cover plate and a condenser which are sequentially arranged from bottom to bottom. A first arc overlapped portion and a second arc overlapped portion are arranged on the two sides of the tile base body respectively. The arc face of the first arc overlapped portion faces upwards, a groove is formed in the arc face of the first arc overlapped portion, waterproof layers are arranged on the surfaces of the arc face and the groove of the first arc overlapped portion, the arc face of the second arc overlapped portion faces downwards, vertically-arranged insertion blocks are connected to the outer end of the arc surface of the second arc overlapped portion and matched with the groove in size, magnets are arranged on the two sides of the insertion blocks, iron blocks are arranged on the two sides inside the groove, and the problems that the solar utilization efficiency is not high, connection between tiles is complex, and the waterproof effect of the overlapped portion of the tiles is poor are solved.

The invention discloses a high-performance nuclear-grade electrical control cabinet. The control cabinet includes a control cabinet body, the bottom of the control cabinet body is fixedly connected with a mounting plate, first sliding grooves are formed in the four right-angled positions of the bottom of the mounting plate, the two sides of the inner wall of each first sliding groove are connectedthrough a sliding rod, a sliding block is slidably connected with the sliding rod in a sleeved mode in the sliding groove, one side, close to the sliding block, of the sliding rod is sleeved with anextrusion spring, and the two ends of the extrusion spring are fixedly connected with the inner wall of one side of the first sliding groove and one side of the sliding block respectively. According to the invention, due to the improvement of the anti-slip pads, when the four pull plates are pulled back to the back, so that the mounting block can drive the sliding blocks to slide in the first sliding grooves, the two groups of pressing plates can be separated, and then be moved to the two sides of the fixed block which is arranged on the ground in advance, the pull plate is loosened, and underthe action of resilience of the extrusion spring, the mounting block can drive the anti-slip pads arranged on the pressing plate to be lapped on the two sides of the fixed block through pressing rods.

The invention discloses a high-voltage cable joint ground wire live-line restoration apparatus and live-line restoration method. The high-voltage cable joint ground wire live-line restoration apparatus includes a grounding needling device, wherein a drive unit of the grounding needling device drives a needle at needles at the drive part of the grounding needling device to move to a clamping part of the grounding needling device; a grounding system is arranged between the needle and the ground; the grounding system includes a digital display capacitance-resistance divider, a high-voltage vacuumcontactor and a connecting wire; after the divider and the contactor are connected in parallel, one end of the grounding needling device is electrically connected with the needle through the connecting wire, and the other end of the grounding needling device is grounded; an insulating bar is arranged at one end, far away from the needle, on the grounding needling device; and the axis of the insulating bar is parallel to the axis of the needle, and one end of the insulating bar is connected with a hydraulic cavity. The high-voltage cable joint ground wire live-line restoration apparatus and live-line restoration method can realize cable joint ground wire live-line restoration, can avoid economic loss caused by power-off restoration, can overcome the harm and hidden trouble of discharge arcwhich appears during the grounding process, can avoid burning operators and related equipment and avoid occurrence of fire, and can also monitor the voltage to ground value of the coaxial ground cables in real time so as to guarantee safety of the work staff.

The invention discloses roadway stacking type parking garage automatic vehicle taking equipment. The equipment comprises an equipment body and a supporting table, a transmission lifting mechanism is arranged on the front face of the equipment body, the supporting table is located on the bottom end of the transmission lifting mechanism, four limiting groove openings are formed in the upper surfaceof the supporting table, four limiting plates are clamped to the upper surface of the supporting table, the lower surfaces of the limiting plates are fixedly connected with electric hydraulic rods, guide plates are arranged on the left side and the right side of the supporting table, through cooperation of the electric hydraulic rods and the limiting plates, after a vehicle is moved to the supporting table, wheels can be clamped in the limiting groove openings, the limiting plate rise to limit and fix the wheels, vehicle body stability is ensured, meanwhile, in cooperation with an air outlet,an electric heating wire and a fan, the outer walls of the wheels can be subjected to rapid air drying, vehicle body sliding caused by wheel slipping can be effectively prevented, and the safety hidden danger can be reduced to the great degree.

The invention provides a high-strength steel plate fixing structure, and belongs to the field of steel structures. The high-strength steel plate fixing structure solves the problem of the insufficientstrength of an existing steel plate fixing structure. The high-strength steel plate fixing structure comprises a first steel plate and a second steel plate, and further comprises a connecting seat which comprises a supporting strip and a connecting strip; the supporting strip and the connecting strip are parallel in the length direction; the edge of the first steel plate and the edge of the second steel plate are provided with a plurality of positioning holes, a plurality of positioning columns are arranged on the two sides of the connecting strip correspondingly, the two sides of the connecting strip are clamped between the edge of the first steel plate and the edge of the second steel plate, and the positioning columns are embedded in the positioning holes correspondingly; the bottom face of the first steel plate and the bottom face of the second steel plate abut against the top face of the supporting strip, the supporting strip is provided with a first penetrating hole, the first steel plate and the second steel plate are provided with second penetrating holes correspondingly, and the positioning columns are provided with threaded holes correspondingly; and the high-strength steel plate fixing structure further comprises bolts which sequentially penetrate through the first penetrating hole and the second penetrating holes and are in threaded connection with the threaded holes, and the top faces of the first steel plate and the second steel plate are flush with the upper edge of the connecting strip. The high-strength steel plate fixing structure can improve the overlapping strength of the first steel plate and the second steel plate.

The invention provides a wire shielding overlap structure which comprises a main wire and a ground wire. The main wire and the ground wire are provided with corresponding overlap sections. The overlapsection of the main wire comprises an exposed main wire shield layer part. The overlap section of the ground wire comprises an exposed ground wire core part. The main wire shield layer part is conductively overlapped with the ground wire core part. The wire shielding overlap structure further comprises a coil spring or a wire spring or a spiral wire clamp which sleeves the main wire shield layerpart and the ground wire core part and is retracted radially to clamp the two parts, and an insulation structure which wraps the overlap sections of the main wire and the ground wire. The coil springor the wire spring or the spiral wire clamp is radially retracted to clamp the main wire shield layer part and the ground wire core part. In addition, the coil spring or the wire spring or the spiralwire clamp has a certain degree of flexibility, and can be bent with the main wire during wiring.

The invention relates to a cotton straw supporting structure for a cemented soil mixing pile. The cotton straw supporting structure is composed of multiple cotton straw net frames in lap joint together up and down. Each cotton straw net frame comprises multiple layers of cotton straw net pieces stacked together and arranged vertically, and the cotton straw net pieces are formed by binding multiplepieces of cotton straw in the longitudinal direction and the transverse direction. At the lap joint portion of every two adjacent cotton straw net frames, the lower ends of the cotton straw in the upper cotton straw net frame are inserted into the lower cotton straw net frame, and the cotton straw net frames are inserted into each other and bound together through rabbets formed by natural branchbranching of the cotton straw. By means of the supporting structure, the flexural rigidity of the cemented soil mixing pile can be improved, and the physical and mechanical properties of different portions of the cemented soil mixing pile can keep consistent.

The invention discloses a positioning device for welding automobile parts, comprising: a substrate; a tool positioning mechanism disposed on the substrate, the tool positioning mechanism being provided with a positioning pin; a rotation positioning mechanism connected with the substrate and used for driving the substrate to rotate to a plurality of working status, tilt angles of the substrate in each of the working status being different; a clamping and fixing mechanism for clamping and fixing the substrate when the substrate is rotated to a predetermined working state. Compared with the priorart, through the cooperation of the tool positioning mechanism and the rotation positioning mechanism, the tool positioning mechanism ensures the stability of overlapping parts and ensures the precision, the rotation positioning mechanism adjusts the welding angle of the workpiece to ensure the solder joint accessibility, operation is convenient, and the positioning accuracy of the fixture is improved.

The invention provides a bearing for textile equipment with adjustable clearance, and relates to the technical field of bearings. The bearing for textile equipment with adjustable clearance includes an inner ring, the inner wall of the inner ring is welded with telescopic parts, the outer surface of the inner ring is covered with a cage, the outside of the cage is covered with an outer ring, and the outer wall of the inner ring is Both the inner wall of the outer ring and the outer ring are provided with card slots suitable for the cage, and the cage overlaps the inner ring and the outer ring. The bearing for textile equipment with adjustable gap, through the rotation of the screw, the screw rotates and expands inside the screw barrel, driving the block close to or away from the fixed ring, so that the distance between the block and the fixed ring can be adjusted, which is convenient for the cage It is fixed inside the outer rings of different sizes, which realizes the adjustable clearance of the bearing and improves the practicability of the bearing, and the set telescopic rod limits the rotation of the block, making the overlap between the block and the outer ring more stable. The setting of the telescopic part makes the inner diameter of the inner ring controllable, which is convenient for the bearing to be fixed on rods of various outer diameters.

The invention provides a building connecting node. The building connecting node comprises prefabricated parts, cast-in-place parts, connecting parts, and sealing parts, the prefabricated parts are fixedly connected through the connecting parts and forms a whole structure with the cast-in-place parts, and then the whole structure is sealed through the sealing parts. Through sequential hoisting andaccurate detection, the smooth progress of construction and the feasibility of construction operation can be ensured, and the stress requirement of the whole building is met. According to the buildingconnecting node, a prefabricated beam, a prefabricated column and a prefabricated laminated plate are fixedly connected, the cast-in-place concrete is reduced, so that the construction is simpler andmore convenient, the construction efficiency and the construction reliability are improved, a shear groove arranged in a through manner is formed in the portion, between the two rows of steel bars, of a prefabricated turnover beam, connection with the laminated plate is facilitated, and linear cracks are avoided; and in addition, the step type design is adopted by the prefabricated laminated plate, stable lap joint with the floor rib of the floor slab can be ensured, so that the stress is reasonable, and the construction safety is improved.

The invention relates to the technical field of tunnel construction, and specifically discloses a non-blasting penetration method for a tunnel in a complex environment. The method comprises the following steps that measuring and lofting are carried out to form a tunnel contour line; advanced support is carried out, and a ring of long pipe roof is designed along the tunnel contour line; excavationand support are carried out, all drilling or spacing drilling is carried out along the tunnel contour line, and block exploding and stripping are carried out; mortar and anchor rods are used for construction, after holes are drilled, the anchor rods and grouting pipes are simultaneously inserted into the holes for pouring the mortar; a steel frame is installed, grooves are excavated on the foundation to erect the steel frame, the steel frame is fixed to the anchor rods, and concrete is sprayed on the steel frame; a reinforcing mesh is used for construction, a layer of concrete is sprayed to form a spraying surface, and the reinforcing mesh is laid on the spraying surface; and the concrete is sprayed, the spraying route is in the form of zonal and segmented spiral movement from bottom to top, and a spray head does continuous circular motion to spray spirally. Through the adoption of the method, the non-blasting penetration of the tunnel can be completed in the complex environment, the influence on the surrounding environment is reduced, and the tunnel construction is successfully completed at the same time.

The invention discloses a bistable passive triggering soft gripper with an adjustable energy barrier. The bistable passive triggering soft gripper comprises a gripper, a connecting rod and a mounting base, wherein the edge of the gripper is in lap joint with the upper end of the mounting base, the center of the gripper is fixedly connected with the upper end of the connecting rod, and the lower end of the connecting rod is vertically inserted into a channel formed in the upper end of the mounting base; a flange is arranged at the lower end of the connecting rod; a latch is horizontally inserted into any set of pre-displacement gear slots in the mounting base; and the flange limits upward movement of the connecting rod. The gripper can push the connecting rod to slide downwards under the impact effect of a target object and complete gripping of the target object. The lower end of the mounting base is supported on a horizontal plane, and more than two sets of pre-displacement gear slots which are arranged along the vertical direction of the channel are formed in the lower middle part of the mounting base.