42results about How to "Reliable structural connection" patented technology

The invention discloses a novel fabricated beam joint and a construction form thereof. The novel fabricated beam joint comprises a prefabricated main beam and cast-in-place ultrahigh-performance concrete. Bolt holes are reserved in the bottom and the bevel of the prefabricated main beam, the bolt holes are in penetrating connection in an upper hole and a lower hole in the prefabricated main beam.The vertical faces of the two sides of the prefabricated main beam are concave-convex faces, and U-shaped steel bars and stretching-out steel bars are reserved. In the prefabricated main beam, high-strength bolts penetrate through the four bolt holes in the vertical direction, finally the prefabricated main beam is fixed to an anchoring part on the beam surface to be connected with the anchoring part, the U-shaped steel bars and the stretching-out steel bars are used for connecting in the horizontal direction, namely, the concave-convex faces, and finally the cast-in-place ultrahigh-performance concrete is used on two main beam seams to achieve binding. The beam joint adopts the connecting manner of combining dry connecting and wet connecting, the advantages of the two connecting manners are achieved at the same time, the novel fabricated beam joint has the advantages of good integrity, ductility, anti-seismic property and the like, meanwhile, the assembly rate is relatively improved,and more efficient and energy-saving development of a fabricated building is promoted.

An elastic tilting-pad sliding bearing comprises a bearing body, a plurality of elastic tilting pads and bearing covers. The elastic tilting pads are symmetrically arranged on the inner side of the bearing body, and the bearing covers are arranged on the two sides of the elastic tilting pads and matched with seam allowances on the two sides of the bearing body. Each elastic tilting pad comprises a tilting pad body and an elastic body arranged on the inner side of the tilting pad body, wherein a mounting gap is formed between the elastic body and the tilting pad body, and fixing plates are connected at the two ends of the tilting pad body and the elastic body and fastened through bolts. According to the elastic tilting-pad sliding bearing, the problems that the machining technology process of the elastic tilting pads is complex and the cost of the elastic tilting pads is high are solved, the whole structure is scientific and reasonable, mounting and use are convenient, the production process is simple, the maintenance cost is reduced, the manufacturing cost is low, usage, popularization and promotion are easy, and the elastic tilting-pad sliding bearing can be widely applied to the matching use of various kinds of tilting-pad sliding bearings.

The invention discloses a pull rod device for an injector. The pull rod device comprises an upper rod body, a lower rod body and a piston which are arranged from top to bottom in sequence, a hollow rod cavity is formed in the upper rod body in a through mode, an inner rod body is installed in the hollow rod cavity in an inserted mode, an inner rod cap is arranged on the top of the inner rod body,a rod cap sinking groove matched with the inner rod cap is formed in the top surface of the upper rod body, a hand-pull ring is connected onto the top surface of the inner rod cap in a hinged mode, multiple bent plates are distributed on the periphery of the bottom of the inner rod body, the upper end of the inner side of each bent plate is connected with the bottom of the inner rod body through afirst hinge, the lower end of the inner side of each bent plate is arranged on the top surface of the lower rod body in a contacted mode, the upper end of the outer side of each bent plate is fixedlyconnected with the bottom surface of the upper rod body in a bonded mode, and the lower end of the outer side of each bent plate is connected with the top surface of the lower rod body through a second hinge. According to the pull rod device for the injector, the structural design is reasonable, normal number reading is not affected, structural connection is stable and reliable, self-destroying dismounting is convenient, and the pull device is suitable of be used as a push-pull rod of the disposable injector.

The invention relates to an electric connection method and device for a high-voltage equipment wire and a metal inner cylinder and aims to solve the problem that existing high-voltage equipment is unreliable in electric connection, poor in connection strength and prone to falling off and the problem that an existing electric connection device cannot be suitable for electric connection between a high-voltage equipment wire and a large-area metal connection layer. The method of the invention comprises the steps that: 1, an inner barrel conical through hole is formed in a high-pressure equipmentinner barrel, wherein the high-pressure equipment inner barrel comprises a first inner barrel body and a second inner barrel body; 2, a hollow conductive column is processed, and a wire is fixed in the central hole of the hollow conductive column; 3, the hollow conductive column with the wire is inserted into the inner barrel conical through hole; 4, the hollow conductive column is completely fixed on the high-voltage equipment inner barrel by using a nut and a cushion block; and step 5, the electric connection state of the wire and the inner barrel is checked.

The invention discloses a travelling case twice plastic molding production method. The method includes the following steps that (1) a plastic plate is produced through an extruder and film pressing equipment, and the plastic plate is subjected to plastic molding, so that a shell blank is obtained; (2) the shell blank obtained in the step (1) is put in a second die set of a vacuum forming machine,rubber applying is performed by passing through rubber, then composite artificial leather is added, and a case shell is obtained through plastic molding; (3) the case shell obtained in the step (2) issubjected to edge brushing treatment, and then holes are punched in the case shell; (4) an aluminum alloy section is subjected to frame bending treatment through a case aluminum material frame bending machine, the two ends are removed through punching and cutting, and then an aluminum frame is obtained through riveting; (5) holes are punched in the aluminum frame, subsequently coating is performed, and then accessories are mounted; (6) the aluminum frame provided with the accessories and the hole-punched case shell are assembled; and (7) foot supports, foot wheels and a pulling rod are mounted, a lining fabric is glued, and internal accessories are riveted. A case produced through the method is good in pressure resistance, resistant to high temperature and not prone to deformation, and connection between the composite artificial leather and a case shell structure is firmer and more reliable.

The invention discloses a 100 KVR energy detection device. The 100 KVR energy detection device comprises an insulating cover (1), an insulating cylinder (2), a printed circuit board (PCB) (3), a fastening screw (4), a base plate (5), a countersunk head cross screw (6), a countersunk extraction head (7), and a printed board fixed piece (8). The 100 KVR energy detection device is characterized in that the insulating cover (1) and the base plate (5) are connected with the insulating cylinder (2) through the countersunk head cross screw (6), the PCB (3) is fixed in the insulating cylinder (2) through the printed board fixed piece (8) and the fastening screw (4), and the countersunk extraction head (8) is fixed on the PCB (3). A specification specifically demonstrates a working principle of the device and gives a specific implementing scheme.

The invention discloses a needle device for a safety syringe, comprising a needle cap and a thin needle tube. A plurality of sets of ratchets are distributed around the top side wall of the thin needle tube, and each set of ratchets includes at least two sets of pawls along the length of the thin needle tube. The ratchet claws are distributed in the directions. There are a plurality of ratchet claws corresponding to each group of ratchet claws around the inner wall of the inner hole of the needle cap. The ratchet block is clamped, and the outer wall of the top end of the thin tube of the needle is sealed with a sealing ring, and the outer circumferential wall of the sealing ring is sealed with the inner wall of the inner hole of the needle cap. The needle cap is truly separated and the needle can be recycled separately.

The invention discloses an efficient defoaming pump. The efficient defoaming pump comprises a front pump shell, a rear pump shell, a supporting body, a pump shaft and a power mechanism, wherein the front pump shell, the rear pump shell and the supporting body are sequentially connected to one another fixedly; the front pump shell is matched with the rear pump shell to form an accommodating cavity; a partition is arranged in the accommodating cavity and divides the accommodating cavity into a first cavity and a second cavity; the supporting body is matched with the rear pump shell to form a third cavity; a fourth cavity and a fifth cavity are formed in the supporting body; one end of the pump shaft sequentially penetrates through the fourth cavity, the third cavity and the second cavity and extends into the first cavity; a first impeller and a second impeller are respectively mounted on parts, which are positioned on the first cavity and the second cavity, of the pump shaft; a liquid foam inlet is formed in the partition; a feeding opening and a first discharging opening are formed in the front pump shell; the rear pump shell is provided with a pump shaft jacket, a second discharging opening and an exhaust port; and the second discharging opening communicates with the feeding opening. The efficient defoaming pump has the advantages of reasonable structure, stable performance, reliability, good defoaming effect, small size, light weight, low energy consumption and the like.

The invention relates to an air conditioner draught fan box which comprises a frame and foaming panels. The frame comprises three-way pieces, frame strips, edge frame pressing plate strips and liner pressing plate strips. The corresponding frame strips are inserted in the three ways of each three-way piece respectively in a matched mode, the liner pressing plate strips are connected to the frame corners, facing the inner side of the box, of the frame strips in the length direction of the frame strips in a sliding mode, and the foaming panels are fixed and clamped by the liner pressing plate strips and the edge frame pressing plate strips. Protruding limiting ribs and protruding screw seats are arranged on the sides, used for clamping the foaming panels, of the edge frame pressing plate strips, limiting grooves matched with the protruding limiting ribs are formed in the outer side frame faces of the frame strips, the liner pressing plate strips and the protruding screw seats of the edge frame pressing plate strips are fixedly connected through self-drilling and self-tapping screws with pads in the direction towards the edge frame pressing plate strips from the liner pressing plate strips, and the self-drilling and self-tapping screws with the pads do not penetrate through the edge frame pressing plate strips after being fastened to the protruding screw seats. The air conditioner draught fan box is reliable in structural connection, the screw pieces are not exposed, integral attractiveness is achieved, the sealing performance and the cold-bridge prevention effect are good, and the air conditioner draught fan box is suitable for serving as boxes of various air conditioner draught fans.

The invention belongs to the technical field of LED lighting, and discloses an LED lamp housing and a sealing method thereof. The LED lamp housing includes an upper cover, and the edge of the cover of the upper cover is provided with a protruding card edge, and the card The first sawtooth groove is evenly arranged on the side; and the lower cover body, the edge of the cover shell of the lower cover body is provided with a card slot, the card slot has an inner card slot edge and an outer card groove edge, and the inner card groove edge Second sawtooth grooves are evenly arranged on the top and alternately distributed with the first sawtooth grooves; the card edge can be inserted into the card slot. The present invention sets the first sawtooth groove and the second sawtooth groove which are interlaced with each other. When pouring glue, the intersected intersecting grooves can eliminate the air bubbles in the gap, avoiding the generation of air bubbles during bonding, even if they appear It can also decompose large bubbles into small bubbles through the sawtooth structure, avoiding large bubbles in the bonding seam, thereby ensuring the sealing performance, making the structural connection more firm and reliable, and further ensuring the waterproof effect.

The invention discloses a hydraulic type salvage tool for restrictors and an operating method thereof. The hydraulic type salvage tool comprises a salvage mechanism; a hydraulic mechanism and a liquid storing mechanism are connected to the upper end of the salvage mechanism in sequence, the hydraulic mechanism comprises a piston, an ejector rob, a hydraulic cylinder and a connecting seat, and the piston is connected to the upper end of the ejector rod; the ejector rod is arranged in the hydraulic cylinder, the piston makes contact with the inner side of the hydraulic cylinder, and the connecting seat is connected to the inner side of the bottom of the hydraulic cylinder; the connecting seat makes contact with the outer side of the ejector rod, and the liquid storing mechanism comprises an upper connector, a piston rod, a nut, an outer barrel and a check valve; the upper connector is connected to the upper end of the piston rod, the nut is connected with the outer side of the piston rod in a sleeving mode, and the piston rod is arranged in the outer barrel; and the nut is connected with the upper end of the outer barrel, and the check valve is connected between the outer barrel and the hydraulic cylinder. According to the hydraulic type salvage tool for the restrictors and the operating method thereof, the problem that the current salvage success rate of downhole restrictors is low is solved, and the technological and economical salvage requirements for safety, reliability and low cost in restrictor salvage under a gas well are met.

The invention discloses a convenient-to-dismount rotary type spraying device. The convenient-to-dismount rotary type spraying device comprises a movable bracket, two spray head assemblies and two blocking plates, wherein the spray head assemblies are mounted on the movable bracket; the blocking plates are mounted at the two ends of the movable bracket; a slide slot with a T-shaped structure is formed in the movable bracket; the two spray head assemblies are mounted inside the slide slot; each spray head assembly comprises an upper cover and a lower cover, wherein the top of the upper cover is connected with a spray head, a connecting tube is arranged below the upper cover, an insertion slot is formed in the center of the lower cover, the two ends of the slide slot are each equipped with a T-shaped block, two insertion holes are formed in one side of the T-shaped block, a blocking plate is mounted at one side of the T-shaped block, and one side of the blocking plate is connected with a guide wire. The two spray head assemblies which are movably connected with the slide slot are mounted inside the device, so that spray heads regulate spraying positions through rotation of the spray head assemblies; and moreover, the convenient-to-dismount rotary type spraying device can realize 360-degree spraying without a dead angle, is wider in spraying range, and is more flexible to use.

The invention discloses a 100 KVR energy detection device. The 100 KVR energy detection device comprises an insulating cover (1), an insulating cylinder (2), a printed circuit board (PCB) (3), a fastening screw (4), a base plate (5), a countersunk head cross screw (6), a countersunk extraction head (7), and a printed board fixed piece (8). The 100 KVR energy detection device is characterized in that the insulating cover (1) and the base plate (5) are connected with the insulating cylinder (2) through the countersunk head cross screw (6), the PCB (3) is fixed in the insulating cylinder (2) through the printed board fixed piece (8) and the fastening screw (4), and the countersunk extraction head (8) is fixed on the PCB (3). A specification specifically demonstrates a working principle of the device and gives a specific implementing scheme.

The invention discloses an armature installation structure which is convenient to assemble; the armature installation structure comprises an armature (1), a coil frame (2) and an armature limit piece (3); the coil frame (2) is provided with a support part (2.1) for supporting the armature (1); the armature (1) can move relatively around the support part (2.1); an interval (4) for the armature (1) to be locally inserted in is formed between the armature limit piece (3) and the coil frame (2) after the armature limit piece (3) and the coil frame (2) are connected; the armature (1) is locally arranged in the interval (4); a concave part (5) is arranged on a surface of the armature (1) which locally faces the armature limit piece (3); and the armature limit piece (3) is provided with an elastic limit part (6) which can be locally pressed open by the armature (1) and finally drops into the concave part (5).

An elastic tilting-pad sliding bearing comprises a bearing body, a plurality of elastic tilting pads and bearing covers. The elastic tilting pads are symmetrically arranged on the inner side of the bearing body, and the bearing covers are arranged on the two sides of the elastic tilting pads and matched with seam allowances on the two sides of the bearing body. Each elastic tilting pad comprises a tilting pad body and an elastic body arranged on the inner side of the tilting pad body, wherein a mounting gap is formed between the elastic body and the tilting pad body, and fixing plates are connected at the two ends of the tilting pad body and the elastic body and fastened through bolts. According to the elastic tilting-pad sliding bearing, the problems that the machining technology process of the elastic tilting pads is complex and the cost of the elastic tilting pads is high are solved, the whole structure is scientific and reasonable, mounting and use are convenient, the production process is simple, the maintenance cost is reduced, the manufacturing cost is low, usage, popularization and promotion are easy, and the elastic tilting-pad sliding bearing can be widely applied to the matching use of various kinds of tilting-pad sliding bearings.