13results about How to "Reduce flatness requirements" patented technology

The utility model relates to a heat dissipation technical field, concretely relates to a pouring and sealing heat dissipation structure. A pouring and sealing heat dissipation structure, include: shell, the shell upper end opening, the opening place forms the flanging, element, the element is placed in the shell, the upper surface of element with the opening of shell is flush, the clearance between element and shell pours into the heat conducting glue, top heat conducting pad, top heat conducting pad is bonded and fixed in the flanging, the lower surface of top heat conducting pad is bonded with the upper surface of element. The technical problem of increasing cost and weight of pouring and sealing heat dissipation mode in the prior art to put the magnetic piece completely in the complex structure mounting groove pouring and sealing needs a large number of heat conducting glue.

This invention discloses a method for fixing tubular components with adhesive, aiming to solve the problem of adhesive and tubular workpieces protruding above the product surface during the adhesive filling process, affecting product quality. The invention includes the following steps: S1, injecting adhesive into a groove on the product to be filled, covering the bottom of the groove with a base layer of adhesive; S2, inserting the tubular workpiece into the groove; S3, pressing a clamping fixture onto the tubular workpiece, ensuring the highest point of the tubular workpiece is below the surface of the product; S4, allowing the base layer of adhesive to cure; S5, removing the clamping fixture; S6, injecting side adhesive into both sides of the tubular workpiece at the groove opening to form side adhesive, and smoothing the adhesive surface to make it flat; S7, allowing the side adhesive to cure. This method for fixing tubular components with adhesive in this patent application reduces the flatness requirements after bending the tubular components, thereby reducing the difficulty of bending the tubular workpieces. During the adhesive filling process, the adhesive and tubular workpiece will not protrude above the product surface, ensuring product quality.

The utility model relates to a kind of lens driving device, camera module and electronic equipment, including frame, and the dynamic frame that frame is moved in the plane perpendicular to optical axis, dynamic frame includes the dynamic body that is moved along the first axis of plane under the drive of first drive component, carrier is moved along and the second axis that is perpendicular to first axis relative to dynamic body under the drive of second drive component, frame and dynamic body between, and dynamic body and carrier between respectively be equipped with motion holding component, motion holding component includes single ball and the ball group formed by several balls, the ball group between frame and dynamic body respectively with frame and dynamic body multiple-point movable contact, the ball group between dynamic body and carrier respectively with dynamic body and carrier multiple-point movable contact.Advantage is that: adopt the hybrid structure of single ball and ball group combination.Single ball provides accurate guidance, ball group compensates plane error by multiple-point support, significantly reduces the requirement to the flatness of part, fundamentally improves the reliability, durability of product.

The application belongs to the technical field of foundation engineering construction, and particularly relates to a marking and line drawing device based on foundation engineering construction, which comprises at least two fixing members for being inserted into the ground, a mounting frame, a winding drum, a steel rope, a swivel, a butt joint member, a moving member, a mounting member and a barrel. The top end of each fixing member is provided with a mounting frame with a through hole opened on the side surface. Two winding drums are rotatably connected in the mounting frame. The winding drum is wound with a steel rope which is threaded out of the through hole. The mounting frame is rotatably connected with a swivel. After the anchor rod is vertically inserted into the base point, the butt joint member is used to butt joint the steel rope and the swivel. The direction limiting member limits the rotating direction of the winding drum. The straightened steel rope forms a track for the moving member to walk. The barrel is hung on the rotating rod. The upper power wheel and the lower power wheel move along the steel rope. The barrel discharges to draw a straight line. The requirement for the flatness of the ground is low. The discharging direction is stable. The use mode is flexible. The practicality and the line drawing efficiency are high.

The utility model provides a fixing device for micro pile embedded section steel. The fixing device comprises an adjustable supporting rod, an anchoring chassis and an adjustable section steel hoop. The adjustable profile steel hoop is of a hoop structure with the shape of an inner opening matched with the shape of the embedded profile steel, the size of the inner opening of the adjustable profile steel hoop is adjustable, and the adjustable profile steel hoop is used for surrounding and fixing the embedded profile steel. The upper ends of the adjustable supporting rods are hinged to the periphery of the adjustable profile steel hoop, the anchoring chassis is installed at the bottom ends of the adjustable supporting rods, and the length of the adjustable supporting rods is adjustable. The anchoring chassis is used for being fixed to the ground. The device has the advantages that the labor intensity of workers is reduced, the construction efficiency is improved, the use of engineering instruments is reduced, and the construction cost is reduced.

This invention provides a hybrid bonding structure and bonding method based on an interlocking structure. The hybrid bonding structure includes: a first chip to be bonded, having a silicon oxide layer and a first connector protruding from the silicon oxide layer; and a second chip to be bonded, having a polyimide layer, a recess within the polyimide layer, and a second connector at the bottom of the recess. The surface of the second connector is provided with a first adhesive layer. The materials of the first and second connectors include copper and / or aluminum. The first and second chips to be bonded are configured such that: before bonding, the height difference of the first connector protruding from the oxide layer is greater than the height difference between the top surface of the first adhesive layer and the top surface of the silicon oxide layer; after bonding, the silicon oxide layer and the polyimide layer are connected, and the first connector extends into the recess and is connected to the second connector using the first adhesive layer, thus forming an interlocking structure. This invention is used to optimize the performance of the hybrid bonding process and bonding structure.

This utility model discloses a porous vacuum suction cup, including a suction cup with a matrix of suction holes on its top. The suction holes are connected by intersecting grooves. A sealing strip surrounds the matrix of suction holes. The suction cup also has independent second suction holes on its top, which communicate with the grooves. Each suction hole has a sealing ring. The sealing strip is fixed in a frame groove on the top of the suction cup, which communicates with the grooves. A tube head is located on one side of the suction cup, communicating with both suction holes. The advantages of this utility model compared to existing technologies are: each suction hole forms a small adsorption area with a sealing ring, and the matrix of suction holes forms a complete adsorption area; additionally, a second complete adsorption area is formed by the grooves connected within the sealing strip via the second suction hole. Simultaneous adsorption in both areas increases the adsorption area, resulting in a more stable dual adsorption effect and improved assurance for smooth processing.

The utility model relates to the technical field of automobile oil tanks, and discloses an oil tank oil filling port assembly which comprises an oil tank shell, an oil tank oil filling port, a first oil filling port, a second oil filling port, a second oil filling port, a first oil filling port and a second oil filling port. The oil filling port is formed in the mounting hole, a first annular protrusion is integrally formed on the peripheral wall of the oil filling port, and the first annular protrusion abuts against the first arc-shaped face to form a welding seam; the installation channel assembly is arranged in the oil tank shell corresponding to the installation hole, and the second end of the oil filling port is arranged in the installation channel assembly in a sealed mode. According to the oil tank oil filling port assembly, the first arc-shaped face and the first annular protrusion abut against each other to form the welding seam, the second end of the oil filling port is installed in the installation channel assembly in a sealed mode so that accurate positioning and stable clamping of the oil filling port can be facilitated, and therefore the requirement for the flatness of a welding area is lowered while the welding quality is guaranteed; and the number of parts and procedures can be reduced, and the production cost can be reduced.

The utility model provides an easy to place and recycle's self -balancing settlement formula seabed base observation system belongs to marine observation technical field. Including integral type recovery part and disposable chassis part, integral type recovery part includes base, four side prismatic shell, flow guide hole, self -floating type universal instrument cabin etc., disposable chassis part includes combined steel frame, anti -sinking plate, barbed foot etc. The utility model discloses utilize flow guide hole to realize self -sinking type placement, utilize integral type recovery part buoyancy point to be higher than gravity point, and the self -floating sea surface is floated, and disposable chassis need not consider recovery simultaneously, and the operation process of offshore placement and recovery is simplified, and the consumption of manpower and material resources is reduced, and self -floating type universal instrument cabin can still make the equipment detection vertical direction sea surface in the placement state of not more than 45 inclination angle on the sea bottom, and the combined chassis foot is high, and the anti -sinking plate and barbed foot are used, so that the sea current is not blocked in the seabed base chassis empty space, and the seabed base siltation and the bottom trawl salvage overturning are prevented.

The utility model relates to the technical field of indoor decoration, in particular to an indoor decoration wallboard structure which comprises a wallboard body, an adhesive layer, release paper, a plastic sealing strip, a traction strip and a connecting plate, at least one side of the wallboard body is chamfered to form an inclined plane, the adhesive layer is arranged on the surface of the inclined plane, and the smooth surface of the release paper is attached to the adhesive layer and connected with the adhesive layer. The plastic sealing strip is connected with the matt surface of the release paper, the plastic sealing strip is arranged in the length direction of the slope, the length direction of the plastic sealing strip is parallel to the length direction of the slope, the plastic sealing strip is filled with the traction strip, the traction strip is distributed in the length direction of the plastic sealing strip, and the traction strip and an external magnet can attract each other; the connecting plate is used for connecting the wallboard body and the wall surface, the requirement of the wallboard for the flatness of a blank wall, the ground and a ceiling can be lowered, the requirement for the cutting precision is small, the construction efficiency can be improved, and practical significance and popularization value are achieved.

The invention relates to the technical field of coal mine underground fully mechanized coal mining face supporting, in particular to a mining surrounding rock pressure dynamic self-adaption self-moving type advance supporting device and a supporting method thereof.The device comprises a crawler chassis, a bearing platform, a resident hydraulic cylinder and a resident bottom plate, a hydraulic power station is integrated in the crawler chassis, and a power source and a controller are arranged on the bearing platform; and power self-sufficiency and intelligent control are realized. A residence hydraulic cylinder drives a residence bottom plate to lift, and the crawler chassis is switched between a grounding walking state and a suspended residence state by utilizing counter-acting force; a stand column cylinder barrel, a telescopic plunger and a spherical hinge type top beam are arranged above the resident hydraulic cylinder and used for supporting the top plate. The pressure sensor and the electro-hydraulic proportional control valve set are adopted for closed-loop control, and real-time sensing of surrounding rock pressure and self-adaptive adjustment of supporting resistance are achieved. The device is small in size, flexible and high in adaptability to roadway bottom plate conditions, and the problems that traditional supporting equipment is difficult to move, and passive bearing and unbalance loading damage are caused are effectively solved.

This invention relates to a bonding paste for crystals, a bonding method, and applications of the bonding method. The bonding paste is formed from the following powders in a specified percentage ratio: SiO₂ 2 20-60%, Al 2 O 3 :30‑45%, MgO: 0‑8%, CaF 2 0-3%, Na 2 O: 0-10%, K 2 O: 0-10%, B 2 O 3 The bonding method includes steps such as synthesizing a bonding slurry for the crystals, applying pressure and bonding, and high-temperature treatment. This invention, by adjusting the proportions of the slurry components and the temperature regime, forms a micrometer-scale glass transition interface between crystals. Compared to high-temperature bonding processes, this invention can achieve bonding between crystal atoms at temperatures far below the crystal's melting point, with strong bonding forces, a smooth and transparent interface, and no cloudiness at the interface. This method greatly simplifies the traditional high-temperature, high-pressure bonding process and significantly improves the yield.

The utility model discloses a printer sucker assembly comprising a platform PVC assembly air suction cover plate, an air suction assembly, a sucker and a driving assembly, the air suction cover plate is arranged at the top of the platform PVC assembly, the air suction assembly is arranged at the bottom of the platform PVC assembly, the sucker is connected to the top of the air suction cover plate in a penetrating manner, and the sucker is used for assisting in fixing a product. The driving component is arranged at the bottom of the sucker. Through the design of the suction cup and the driving assembly, when a product with an uneven surface needs to be printed in use, the product is moved to the upper surface of the air suction cover plate, adsorbed through the rigid air suction platform and then secondarily limited through the suction cup, so that deformation of the plate-shaped product is controlled; according to the utility model, the printing distance between the product and the nozzle is reduced, the printing precision is improved, the nozzle is prevented from being scratched by the warped edge of the plate, and the plate warped edge can be forcibly leveled by the sucker, so that the requirement of the printer on the flatness of the plate is reduced, and the utilization rate of the plate is improved.