12results about How to "Realize a rigid connection" patented technology

The utility model discloses a permanent and temporary combined assembly type underground structure plate wall connecting node which comprises an assembly type underground diaphragm wall, a full-length steel plate is installed on the side wall of the assembly type underground diaphragm wall, and a prefabricated structure plate is hoisted on the full-length steel plate. The gap between the prefabricated structural slab and the fabricated underground diaphragm wall is filled with ultra-high-performance concrete, and a steel bar structure is arranged in the ultra-high-performance concrete. According to the utility model, the rigid connection between the two prefabricated parts is realized, the integrity of the structure is improved, and the safety and durability of the underground structure are fully ensured; an underground diaphragm wall which is usually used as a temporary structure is changed into a permanent structure, so that the construction period is shortened, and the investment is saved; the ultra-high performance concrete poured in the joint can greatly shorten the anchoring length of the steel bars, enlarge the arrangement distance of the steel bars, obviously reduce the using amount of the steel bars on site and the binding workload, is convenient to install and simple in process, obviously improves the construction efficiency, and has high popularization and application value.

This utility model discloses a modular axle forging anvil assembly, including a medium anvil, side anvils symmetrically arranged on both sides of the medium anvil, a positioning and connecting mechanism, and a bolt assembly. A reinforcing rib is fixedly connected to the side wall of the medium anvil near the side anvils, and the reinforcing rib has a movable cavity. The positioning and connecting mechanism includes a positioning block slidably disposed within the movable cavity. The positioning block is inserted into the side anvil, and a connecting rod is fixedly connected to one side of the positioning block. A lifting seat is fixedly connected to the end of the connecting rod away from the positioning block. The bolt assembly includes a bolt threadedly connected to the side anvils. The end of the bolt passes through the reinforcing rib and abuts against the lifting seat, and the end has a tapered rod. This utility model allows the side anvils to be detachably connected to the medium anvil via the positioning and connecting mechanism and the bolt assembly, facilitating the replacement of suitable side anvils for different axle models without requiring a complete replacement of the assembly, thus reducing equipment costs and expanding applicability.

This utility model discloses a composite aluminum panel, including a wall. An aluminum panel body is provided on one side of the wall, and a groove is formed on one side surface of the aluminum panel body. A connecting plate is provided on one side of the aluminum panel body, and a reinforcing plate is fixedly installed on one side surface of the connecting plate. In this utility model, by pulling the connecting block on the limiting rod, it moves along the through groove of the connecting cylinder, causing the telescopic rod to move synchronously and compress the outer spring. When the end of the limiting rod disengages from the mounting base, the insert of the connecting plate can be inserted into the wall mounting base. After releasing the connecting block, the spring rebounds, pushing the limiting rod to automatically pass through the insert and engage with the limiting hole of the mounting base, completing a quick locking installation. For disassembly, pulling the connecting block causes the limiting rod to exit the limiting hole, separating the insert from the mounting base, achieving efficient disassembly. This structure utilizes the elastic restoring characteristics of the spring, simplifying the assembly and disassembly process and significantly improving the convenience of maintenance operations while ensuring connection reliability.

The invention relates to the technical field of pipeline joints, and discloses a high-sealing-performance insulating joint which comprises a connector, a sleeve cylinder, insulating filler and a U-shaped sealing ring, the sleeve cylinder is connected to the outer side of the connector in a sleeving mode, the space between the connector and the sleeve cylinder is filled with the insulating filler, the U-shaped sealing ring is arranged in the connector, a sealing stabilizing assembly is arranged in the connector, and the U-shaped sealing ring is connected with the U-shaped sealing ring in a sleeving mode. The sealing stabilizing assembly comprises an insulating plate which is arranged in the connector. A buffer is installed for a sealing system by sensing the internal pressure of a pipeline and dynamically adjusting the pressing state of the buffer plate set, initial sealing force is provided, meanwhile, the risk that a sealing piece is damaged due to pressure pulsation is reduced, and the sealing reliability of a connector under the complex working condition is fundamentally improved; through the negative pressure detection mechanism, operation and maintenance personnel can find faults in time and arrange maintenance in a planned mode, and economic losses and safety risks caused by leakage accidents and unplanned shutdown are avoided.

The utility model relates to a building facade keel staggered hole fixing device which effectively solves the problem that the adjustability is poor when keels are installed in a staggered mode. According to the technical scheme, the sliding arm comprises two sets of sliding arm units, each set of sliding arm unit comprises a sliding block and a connecting arm, the sliding block is installed on a keel in a sliding mode, one end of the connecting arm is hinged to the sliding block, and the other end of the connecting arm is provided with a first hinge hole. The first hinge holes in the outer ends of the connecting arms of the two groups of sliding arm units are formed in the same embedded bolt or expansion bolt in a penetrating manner, and the compression nut is screwed at the outer end of the embedded bolt or expansion bolt to compress the end parts of the two connecting arms; the connecting piece can be connected with any bolt position, a long groove does not need to be formed in the keel, the strength of the keel is not affected, punching on site is not needed, installation is convenient, the connecting piece can adapt to an existing keel, and good universality is achieved.

The invention provides a design method of a steel structure spiral staircase, and relates to the field of building steel structure engineering, and the method comprises the steps: building a spiral staircase space line model through computer software, and discretizing and importing a finite element program; defining a bearing system composed of the internal rotation steel beam, the external rotation steel beam and the step steel beam; applying a handrail load, a step load and a temperature effect; setting boundary conditions of the fixed support; executing deformation, internal force and stress analysis; internal and external rotation steel beams are designed by adopting a box-shaped section according to a stress result, and a rectangular steel pipe step beam is used for providing plane external support; arranging riffled plates and rib plates on the lower flanges of the steel beams based on the deformation data; section steel is pre-embedded in the concrete platform according to the internal force of the support, and rigid connection of the ends of the steel beams is achieved. According to the method, the limitation of a traditional graph set on the size of the spiral staircase is broken through, and the requirements for strength, stability and deformation control are met at the same time through finite element full-process driving design under the condition that intermediate supports are cancelled.

The invention relates to the technical field of guide wheel ceramic plating, in particular to bus bar traction guide wheel ceramic plating equipment which comprises a base, and a vacuum tank communicated with a vacuum pump set is fixedly connected to the surface of the base. According to the bus bar traction guide wheel ceramic plating equipment, an operator only needs to sleeve the guide wheels into the placing rods in sequence, and the dead weight of the guide wheels during falling can trigger a pneumatic chain reaction. The first guide wheel presses the lowermost limiting block to drive the pressed pneumatic piston rod, compressed gas of the first guide wheel pushes the upper-stage ejection pneumatic piston rod through the pipeline, and therefore the upper side edge limiting mechanism is pushed out of the inner groove and exactly abuts against the upper surface of the guide wheel to form limiting. And the guide wheels are automatically and repeatedly placed along with successive placement of the guide wheels, and finally all the guide wheels are automatically separated and axially positioned by the side edge limiting mechanisms which extend out in pairs. Rapid batch feeding of multiple workpieces is achieved, it is ensured that constant isolation space exists between the workpieces, and preconditions are created for subsequent uniform coating.

The utility model provides a splicing type LED display screen which comprises a base, a display screen body is fixedly installed on the top side of the base, a cavity is formed in the inner side of the base, two sets of through holes are symmetrically formed in the top side of one end of the cavity, polished rods are connected to the inner sides of the two sets of through holes in a sliding mode, and the polished rods are connected with the display screen body in a sliding mode. The bottom ends of the two sets of polished rods are jointly and fixedly connected with a spring bolt, and a connecting base is fixedly installed at the position, corresponding to the spring bolt, of the other end of the base. According to the display screen, flexible movement of the spring bolt in the base can be achieved through cooperation of the polished rod and the limiting block, pressure can be applied to the spring bolt through cooperation of the spring and the polished rod, rigid connection of multiple sets of display screen bodies can be achieved through cooperation of the spring bolt and the connecting base, and the display screen is convenient to use. And gaps among the multiple groups of display screen bodies when the display screen bodies are collided by personnel, moved by equipment or impacted by external vibration force of the ground are prevented, so that the stability of multi-screen linkage picture playing is ensured.

The utility model discloses an automobile roof handle integrated damping rotating mechanism which comprises a handle body, installation grooves are formed in the two ends of the handle body, the installation grooves are rotationally connected with fixing bases, and the fixing bases comprise the first fixing base and the second fixing base. The first fixing base is rotationally connected with the handle body through a first pin shaft, the first pin shaft is provided with a damper, the damper comprises a damping shell and a damping rotor, the damping shell is arranged on the outer side of the damping rotor in a sleeving mode, a left fixing block is arranged on the left end face of the damping rotor, and a right fixing block is arranged on the right end face of the damping rotor; the left fixing block and the right fixing block are arranged at the two ends of the damping rotor respectively, and the fixing grooves matched with the left fixing block and the right fixing block are formed in the first fixing base respectively, so that rigid connection between the damping rotor and the first fixing base is achieved, and the two ends of the damping rotor are tightly matched with the first fixing base; and the matching error between the damping rotor and the first fixed base is reduced, and the damping effect stability is ensured.