17results about How to "Avoid local damage" patented technology

The utility model relates to a thermal insulation board technical field especially a rock wool thermal insulation board with connecting structure, the utility model discloses a first layer board, second layer board, arc bayonet, arc protruding, round joint end, work shape bayonet and work shape protruding, second layer board style board block at least one with the board block splicing of first layer board style, at least one side of first layer board style board block is provided with arc bayonet, and the opposite side edge of first layer board is provided with the arc protruding of shape matching with arc bayonet, and the round joint end is set up in the port of arc protruding, at least one side edge of second layer board style board block is provided with work shape bayonet, and the opposite side edge of second layer board is provided with the work shape protruding of shape matching with work shape bayonet, the utility model discloses the transverse splicing of realizing through the joint of arc bayonet and corresponding arc protruding between the adjacent two first layer board style board block.

The utility model relates to mechanical engineering technical field discloses a kind of transmission screw of double thread structure, including stud, the outside of stud is fixedly connected with two inner rings, the outside of inner ring is fixedly connected with thread tooth, the surface of inner ring is equipped with lubricating groove, the outside of thread tooth is movably connected with multiple ball bearings, multiple ball bearings are evenly distributed in the outer surface of thread tooth in equidistant interval mode, and extend along the helical path of thread tooth, ball bearing is steel ball bearing, and surface is polished, the radial dimension of inner ring is less than thread tooth, and the corresponding ladder groove of adaptation bolt is equipped with, axial limit is formed when the two are clamped, and the inner wall of lubricating groove is equipped with flow guide line route.In the utility model, rely on the bidirectional ladder type clamping structure of double inner ring and bolt double internal thread, can form double axial limit effect, greatly enhance the connection firmness of screw and bolt, effectively avoid the front and rear sway or deviation caused by vibration, impact during transmission.

The utility model provides a lithium battery cap pressure welding device which comprises a workbench, moving blocks are connected to the left side and the right side of the bottom in the workbench in a sliding mode, a driving wheel is fixedly connected to the upper portion of the rear end of the workbench, and a fixed block is movably connected to the interior of the workbench. According to the pressure welding device for the lithium battery cap, by arranging a moving groove, a moving block, a first clamping plate, a driving wheel, a driven wheel, a sliding groove, a sliding block, a fixed block, a second clamping plate and other structures, the moving block achieves transverse movement of the first clamping plate through transmission of a first double-thread screw, clamping of a lithium battery is completed, and the driving wheel and the driven wheel transmit power stably through a transmission belt; a sliding groove, a sliding block and a fixing block are combined and matched with a second double-thread screw, a second clamping plate can clamp the middle of the lithium battery, the first clamping plate and the second clamping plate are in arc design and provided with an anti-skid pad, the appearance of the lithium battery is attached, friction force is enhanced, and the battery is prevented from being damaged and sliding.

The utility model belongs to the technical field of environmental protection, and particularly discloses a CVD sintering furnace acid gas tail gas treatment device which comprises a pipeline connected with the exhaust end of a sintering furnace, and a first filtering assembly, a cleaning assembly and a second filtering assembly are sequentially arranged in the length direction of the pipeline. The cleaning assembly comprises an oil washing part and a water washing part; the oil washing part comprises a mixing chamber and a separation chamber, the mixing chamber is used for mixing gas and oil, and the separation chamber is used for separating the gas and the oil; the washing part comprises a spray tower which is communicated with the pipeline; the spray tower is provided with a spray head; the spray header is used for spraying alkali liquor into the spray tower; the spray tower is provided with a pH sensor which is used for detecting the pH value of the alkali liquor. According to the utility model, particle filtration and multi-stage purification are realized, the safety of the device can be effectively improved, and the problems of easiness in corrosion, low protection effect and low treatment efficiency of equipment in the prior art are solved.

The application provides a kind of multi-phase pole unit independent breaking intelligent measurement switch, it is related to power equipment technical field, including shell, positioning bolt on shell screw connection, and a plurality of phase pole units are arranged in shell, further comprising: connecting block, it is worn in wiring hole, one end of connecting block is provided with wire hole that penetrates the end surface;Limiting component, it is installed on connecting block, part of structure of limiting component extends into wire hole and abuts to the surface of wire worn in wire hole;Positioning assembly, it is vertically slidingly installed in sliding slot that is opened in connecting block, sliding slot penetrates connecting block along vertical direction and is communicated with wire hole, the bottom end surface of positioning assembly is in contact with the wire body worn in wire hole;When connecting block is worn in wiring hole, positioning assembly is located directly below positioning bolt.The application realizes stable electrical connection of wire body and terminal board, axial positioning of connecting block in wiring hole and independent assembly of each phase pole unit wiring structure.

This utility model relates to the field of proton exchange membrane electrode technology, and in particular to a proton exchange membrane electrode package and its electrode structure. It includes an electrode body with symmetrically arranged packaging frames on its upper and lower sides. A packaging groove matching the specifications of the electrode body is formed at one end of the packaging frame near the electrode body. An inner frame matching the specifications is formed on the inner end face of the packaging groove. The inner frame is a composite structure comprising a positioning layer, a heat insulation layer, and a bonding layer. A positioning component is provided between the positioning layer and the inner end face of the packaging groove. Multiple sets of heat insulation cavities are arranged at equal intervals within the heat insulation layer. Multiple sets of bonding holes are arranged at equal intervals on the bonding layer. The inner frame is installed on the inner end face of the packaging groove via the positioning component. This utility model can reduce the impact of temperature conduction on the membrane electrode during hot pressing of the packaging frame, preventing localized damage to the membrane electrode and ensuring its performance and lifespan.

The utility model discloses a railway platform canopy deformation joint anti-falling cover plate structure, and relates to the technical field of railway platform canopies, the railway platform canopy deformation joint anti-falling cover plate structure comprises a canopy roof panel, the canopy roof panel is provided with a deformation joint, the canopy roof panel is provided with a section of structural beam at each of two sides of the deformation joint, and a cover plate is arranged on the top surface of each section of structural beam in a cast-in-place manner; one end of the cover plate is fixedly connected with the structural beam cast-in-place, and one end of the cover plate far away from the fixed joint of the cover plate and the structural beam cast-in-place spans the other structural beam; one end of the cover plate is fixedly connected with the structural beam in a cast-in-place mode, so that the cover plate and the structural beam form a whole, the stability of the cover plate is greatly enhanced, and the possibility that the cover plate falls off due to external force is effectively reduced; the cover plate covers the deformation joint, a foundation structure is provided for preventing rainwater from leaking into the deformation joint, and the initial waterproof effect is achieved.

The utility model belongs to the technical field of elevator safety protection, and particularly relates to a pit safety hook for preventing an elevator car from rushing down, which comprises a bottom plate, supporting plates, limiting cylinders, telescopic rods and the like, a plurality of supporting plates are distributed and mounted on the bottom plate in two rows and two columns, a plurality of adjacent limiting cylinders form one group, the number of the four groups is four, each group of limiting cylinders is fixedly connected to each supporting plate, and the telescopic rods are fixedly connected to the bottom plate. Each telescopic rod is arranged on the corresponding limiting cylinder in a sliding mode, one end of each telescopic rod extends out of the corresponding limiting cylinder, and the other end of each telescopic rod extends into the corresponding limiting cylinder. The four symmetrically-distributed buffer units are reasonably arranged on the pit safety hook, when an elevator car rushes downwards accidentally, the four buffer units can provide buffer force from the four corners of the bottom of the elevator car at the same time, according to the multi-point dispersion buffer mode, even if unbalance loading and inclination occur when the elevator car rushes downwards, impact energy can be evenly dispersed and absorbed, and the safety of the elevator car is improved. Local damage of the elevator car is avoided, and structural integrity and passenger safety are guaranteed.

The invention relates to a docking assembly mechanism for a large battery pack in a cabin. The docking assembly mechanism comprises a module grouping assembly, a battery pack placing trolley, an auxiliary adjusting assembly and a cabin docking assembly, the module grouping assembly is used for forming a battery pack by a plurality of battery modules; the battery pack placing trolley comprises a main beam frame, and a roller guide rail group, a baffle plate assembly and a walking assembly which are arranged on the main beam frame; the roller guide rail group is used for bearing and transferring battery packs; the baffle assembly is used for limiting the battery pack on the roller guide rail group; the auxiliary adjusting assembly is arranged between the roller guide rail set and the main beam frame, and the roller guide rail set evenly supports the battery pack by adjusting the height of the auxiliary adjusting assembly. The in-cabin butt joint assembly is arranged in the energy cabin; the butt joint guide rail group is used for being in butt joint with the roller guide rail group and guiding the battery pack into the energy cabin; and the butt-joint bolt hole seat is used for being matched with a bolt arranged on the battery pack to limit the battery pack on the butt-joint guide rail group. The device is reliable in structure and convenient to operate, and rapid and safe assembly of the large battery pack is achieved.

The invention relates to the technical field of liquid performance testing, in particular to a rapid liquid heat conductivity coefficient testing device and method.The device comprises a pool base, a pool body and a pool cover which are sequentially stacked and assembled from bottom to top, the pool base, the pool body and the pool cover are locked through a plurality of bolts, a sample cavity is formed in the center of the pool base, and a forming cavity is formed in the pool body; a temperature measuring probe is clamped between the pool seat and the pool body, a first sealing gasket is placed between the pool seat and the pool body, a second sealing gasket is placed between the pool body and the pool cover, the temperature measuring probe is fixed in a clamping mode, the problems that a thin hot wire is prone to being damaged due to stress and fixing difficulty is high are solved, the assembling process of the liquid pool is simple, and the assembling efficiency is high. And the first sealing gasket and the second sealing gasket can avoid liquid leakage or volatile liquid evaporation, and meanwhile, external water vapor and impurities are prevented from permeating, so that the sealing performance of the device is remarkably improved.

The utility model provides a kind of aluminium plate die casting die convenient to demould, including fixed mould and movable mould, be provided with injection pipeline on the fixed mould, be provided with push mechanism on the movable mould.The utility model through above-mentioned structure, in liquid aluminium is injected into mould cavity by injection pipeline, and is extruded inwards by the hydraulic cylinder of die casting machine, makes liquid aluminium fill mould cavity, after liquid aluminium cooling forming obtains aluminium plate, can be by moving movable mould, make movable mould away from fixed mould, when aluminium plate is taken out, can be by die casting machine push the upper driving plate and lower driving plate of push mechanism, make it drive ejector rod, and by ejector rod drive push block, it can make aluminium plate separate movable mould of movable mould ren, can take out aluminium plate, push block pushes out aluminium plate, it can increase the contact area of aluminium plate, to prevent the force area of aluminium plate too small, avoid local damage of aluminium plate, to protect aluminium plate, improve production quality.

This invention relates to the field of film shrinkage measurement technology, encompassing clamping plates, a fixture for preventing sample strip detachment, and a device for measuring the heat shrinkage properties of films. The fixture includes fastening bolts and two symmetrically arranged clamping plate bodies. The fastening bolts pass through and connect the two clamping plate bodies, clamping the sample strip between them. A first arc-shaped groove is formed on one side of each clamping plate body, and a second groove extending perpendicular to the length of the sample strip is formed on the opposite side. A rubber pad is placed within the second groove, and the rubber pad has several protrusions arranged in an array to compress the end of the sample strip. This clamping plate structure increases the friction between the clamping plate and the sample strip, making it less likely for the sample strip to detach. Simultaneously, the clamping force is evenly distributed, avoiding localized damage to the sample strip and reducing the risk of detachment. The control system of the film heat shrinkage performance measuring device combines the detected pressure data to control the device's operating status in real time, reducing wasted time and improving testing reliability.

The application discloses a device and method for conveniently installing a true triaxial seepage pressure head. The device comprises a base unit, a motion execution unit and a clamping unit. The base unit provides a fixed base and frame with the test bench. The motion execution unit is composed of a vertical driving module and a horizontal driving module; the vertical driving module drives the clamping unit to rise and fall through adjusting the lead screw, and the horizontal driving module drives the clamping unit to move horizontally through at least one horizontal sliding rail. The clamping unit comprises a fixed table with a groove and a detachable clamping plate for clamping the seepage pressure head. The horizontal driving module can contain a lateral sliding rail constituting a three-sided guide to limit deflection; the clamping unit can be equipped with rubber pads, modular quick-change components or self-adaptive clamping jaws to adapt to different pressure heads. The installation method comprises clamping, rough positioning, visual fine positioning, force control docking and release withdrawal steps. The problems of low precision and poor efficiency in the traditional installation method are solved, and the rapid, accurate and automated installation of the seepage pressure head is realized.

The application discloses a preparation method of an electromagnetic shielding layer, the electromagnetic shielding layer and a display module, and relates to the technical field of display modules. The preparation method of the electromagnetic shielding layer comprises the following steps: forming a corrosion grain boundary layer on a first surface of a metal layer; and forming an organic material layer on the first surface of the metal layer, and part of the organic material layer invades the corrosion grain boundary layer to form a first composite layer. In the preparation method of the electromagnetic shielding layer, the corrosion grain boundary is formed on one side of the metal layer, and part of the organic material layer invades the corrosion grain boundary layer. The first composite layer improves the bonding area and the bonding strength between the organic material layer and the metal layer, improves the adhesion between the organic material layer and the metal layer, and helps to improve the rigidity of the overall structure of the electromagnetic shielding layer. Meanwhile, after the organic material invades the metal grain boundary, the organic material layer and the metal layer form an interlocking structure, the first composite layer can disperse impact force and reduce stress concentration, thereby preventing local damage of the metal layer.

The utility model provides a kind of motorcycle headlamp of anti-fogging water inlet belongs to motorcycle headlamp technical field. Including lamp shell, lamp shell top is equipped with lamp shade, is equipped with clamping groove on lamp shell, lamp shade bottom is fixed with sealing strip, clamping groove and sealing strip plug-in cooperation, lamp shell surface is fixed with multiple fixed lug;Prize component, prize component is used to assist maintenance personnel to separate lamp shell and clamping groove, prize component is connected with lamp shell. The utility model is through being provided with prize component, effectively simplifies the disassembly process, shortens maintenance time, improves maintenance efficiency, so that maintenance personnel can more quickly complete tail lamp maintenance or component replacement work, simultaneously, can effectively reduce the damage risk to lamp shell and lamp shade when disassembling, effectively protect the integrity of component, to reduce the maintenance cost generated due to component damage.

The invention discloses a fabricated pavement and a construction method thereof.The fabricated pavement comprises a base layer and an intact pavement structure layer, the intact pavement structure layer is arranged above the base layer, an anchoring component is inserted into one side of the intact pavement structure layer, and a transverse prefabricated slab is arranged on one side of the intact pavement structure layer; the bottom of the prefabricated slab is fixedly connected with an abutment. The structure has the advantages that the structure is in anchoring connection with the peripheral pavement, so that the structure and the peripheral pavement form a complete system, and the overall bearing capacity is improved. Pavement loads are transmitted to the profile steel beams through the prefabricated plates and then transmitted to the abutments from the profile steel beams, the abutments disperse the loads to a lower-layer structure or a roadbed, the plate-girder effect is fully played, the loads borne by the prefabricated plates are effectively reduced, the bearing capacity of the pavement is improved in a disguised mode, and the service life of the structure is prolonged. Gaps are reserved between the prefabricated slabs for grouting, so that local damage caused by collision of the two adjacent prefabricated slabs due to plate dislocation in the later period can be avoided.