74 results about "Dowel" patented technology

The utility model discloses a kind of inertial navigation installation base, installation shell and installation base of inertial navigation trolley system, it is related to inertial navigation equipment installation technical field, the inertial navigation installation base includes a kind of inertial navigation installation base of inertial navigation trolley system and a kind of inertial navigation installation shell of inertial navigation trolley system, inertial navigation casing connecting plate is located between first fixed block and second compression block, the limiting hole of inertial navigation installation base is connected with dowel, limiting boss is connected with the limiting recess of the side of inertial navigation casing connecting plate, compression block and inertial navigation casing connecting plate abut. By design for installing small inertial navigation equipment inertial navigation installation shell and inertial navigation installation base and connect inertial navigation installation shell and inertial navigation installation base to form inertial navigation installation base, improve the convenience of disassembly and installation of inertial navigation installation shell and inertial navigation installation base in inertial navigation installation base.

This application relates to the field of building structure technology and provides a method, computer equipment, and computer program product for calculating shear capacity. The method includes: treating a web-stiffened double-plate-concrete composite structure as including a combined shear truss mechanism; calculating the first shear capacity provided by the core concrete through the combined shear truss mechanism; treating the web-stiffened double-plate-concrete composite structure as also including a dowel-operated shear mechanism of reinforced concrete structure, and calculating the second shear capacity provided by the dowel-operated shear mechanism of the inner and outer steel plates through the longitudinal reinforcement; and calculating the total shear capacity of the web-stiffened double-plate-concrete composite structure based on the first and second shear capacities. The method provided in this application enables accurate calculation of the total shear capacity in the shear design of web-stiffened double-plate-concrete composite structures, with a clear mechanism and reasonable structure, ensuring the safety and reliability of related shear designs.

The utility model discloses an automobile parts hinged seat equipment belongs to hinged seat assembling technical field, and the inside installation of processing table can be to first hinged seat and second hinged seat assembling prepositioned hinged seat assembling positioner subassembly, and the side surface installation of processing table can drive the up and down movement of hinge seat assembly telescopic subassembly of dowel, and the upper installation of processing table can be to the dowel support pin support subassembly. Through above -mentioned mode, the self -gravity of dowel is less than the elasticity of third spring to limit block, so the dowel will not separate out support ring, and when the first hinged seat and second hinged seat are assembled after dowel, the elasticity of third spring to limit block is less than, and the total weight of first hinged seat, second hinged seat and dowel and the elasticity of second spring to guide rod, limit block will be extruded by the upper end fixed cap of dowel at this time, makes limit block shrink to third storage groove, makes the hinged seat after assembling automatic separation support ring.

The utility model relates to mechanical processing auxiliary equipment technical field, concretely relates to a three face sheltering oil mist suction and discharge filter device, including main conveying pipeline and sheltering subassembly, sheltering subassembly includes connecting pipe, processing box, loudspeaker cover, positioning plate, dowel pin, sheltering rubber curtain, fixed plate and processing component, when the installation of single sheltering rubber curtain, its mounting hole is directly connected with dowel pin sliding and realizes the positioning, then through two bolts fixed on fixed plate carries out sheltering rubber curtain limit fixing, and when the dismantling of corresponding sheltering rubber curtain, the two fixed bolts of fixed plate in corresponding position are taken off, then the corresponding sheltering rubber curtain can be directly taken off, and the subsequent maintenance dismantling of single rubber curtain can be solved the problem that the existing oil mist treatment device is inconvenient when using with the increase of the rubber curtain width.

The application relates to the technical field of electric control elements, in particular to a miniaturized high-protection DC contactor, so as to solve the problems that the process operation is complicated, time-consuming and large in space ratio when silicon rubber is generally used for internal filling of the traditional DC contactor, and finally the maintenance convenience of the internal filling structure of the DC contactor is poor and the overall application efficiency is low. The cover plate of the DC contactor is clamped with the base assembly through self-back dowel, the electromagnetic system drives the contact bridge mechanism to contact or separate from the static contact of the base assembly, the traditional screw column type base packaging structure is replaced, the space utilization rate in the shell is significantly improved by combining the up-down displacement of the contact bridge mechanism, the structural height is effectively reduced while the structural strength and sealing performance are ensured, the product miniaturization is ensured, the silicon rubber filling process is replaced by a sealing gasket, the assembly process is simplified, and the composite connection of the combined nail and rivet further guarantees the mechanical stability and sealing reliability of the overall structure.

A yarn fluffing tool comprising: a dowel, the dowel comprising a first end and a second end; a first loop extending from the first end, the first loop having a generally smooth shape except for a first irregular portion where the first loop terminates at the first end and that first irregular portion has an irregular shape, the first loop is bent in a first direction away from the longitudinal directions of the dowel; a second loop extending from the first end and adjacent to the first loop, the second loop having a generally smooth shape except for a second irregular portion, where the second loop is basically a mirror image shape of the first loop; and where the first irregular portion and the second irregular portion overlap with each other.

The utility model discloses a kind of ultrasonic bird repeller of large-angle rotation, belong to ultrasonic bird repeller technical field, including support seat, the bottom surface of the support seat is fixedly installed with multiple self-locking casters, the top surface of the support seat is fixedly connected with support ring, the top of the support ring is provided with horizontal rotating bearing, the top surface of the horizontal rotating bearing is fixedly connected with turntable, the top surface of the turntable is fixedly connected with two brackets, rotatingly connected with installation cylinder between two the brackets, the top of the turntable is provided with driving mechanism. In the utility model, the device is moved using self-locking caster, and the device is supported using self-locking caster, to ensure that the bird repeller can adjust position, and the supporting disc and dowel are driven to move down by electric telescopic rod, so that the bottom surface of the supporting disc and ground are in contact, so that the bottom end of the dowel is inserted into ground, to ensure the stability of the device.

A hybrid brushroll for a cleaning apparatus includes a shaft (22) and a brush dowel (26) extending around the shaft (22). Bristle features (28) and flaps (30)are coupled to the brush dowel (26). Each flap (30) includes a coupling segment (110) inserted into the brush dowel (26), an engagement segment (114) having an outer side (34) for engaging a surface (10) to be cleaned, and a bend (112) between the coupling segment (110) and the engagement segment (114). The engagement segment (114) extends from the bend (112) and proximate to an outer surface (32) of the brush dowel (26) in an opposing direction (116) relative to the rotational direction (36). Protrusions (38) extend along the outer side (34) of the engagement segments (114) to provide contact locations between the flaps (30) and the surface (10) to be cleaned during rotation to reduce a noise generated by engagement between the flaps (30) and a surface (10) being cleaned.

The utility model discloses a face guard leather material positioning fixture structure relates to face guard production technical field, including the first frame edge and second frame edge of symmetrical setting, and the second frame edge is installed in the both sides of first frame edge. First frame edge contains pedestal, and the upper portion slidingly connected slider of pedestal, and first frame edge and slider top all are equipped with the positioning boss column, for fixed face guard leather material. The top of pedestal is equipped with the limit boss and limit passage, and the passage is embedded with the dowel, and the dowel is connected with slider and is externally equipped with spring, and the both ends of spring respectively abut the dowel and the step protruding in the passage, realizes the buffer. The slider slides in the slide, and its tail end is equipped with second stop lug, and the first stop lug of the top of pedestal cooperates and restricts the sliding range. The cavity in the middle part of slider and slide jointly promote the sliding stability. This structure when face guard leather material forming, through the slider displacement relief leather material stretch, reduce the wrinkle, the leakage, promote face guard finished product quality and production efficiency.

Giga Fix dowels are characterized by the fact that the dowel sleeve 2 is optionally made of plastic 2 or of fabric hose 2a.

This utility model discloses a large-size inverted curtain wall glass installation system, belonging to the field of building construction. It includes two symmetrically arranged lifting systems, two sets of support assemblies, and two sets of horizontal structures. One lifting system is installed on one set of horizontal structures, with its bottom connected to one set of support assemblies. The other lifting system is installed on the other set of horizontal structures, with its bottom connected to the other set of support assemblies. Each lifting system includes two lifting structures arranged horizontally, and each lifting structure includes a jack and a glass suction cup connected to the jack. Each support assembly includes at least two supports. This utility model avoids the safety risks associated with manual lifting, and the method offers fast installation and reusable equipment.

A swivelable furniture dowel (5) for joining furniture parts (1,2), for example, for joining wood material plates at a right angle, wherein the furniture dowel (5) has at least one dowel pin (9), and the dowel pin (9) is formed to generate various outer peripheral pressing forces in a receiving hole (4) provided in one of the furniture parts (1,2) at a predetermined rotation angle (13) of the furniture dowel (5) relative to the furniture parts (1,2) to be joined.

A cleaning apparatus (10) includes a suction source (12), a suction inlet (14) in fluid communication with the suction source (12), a brushroll chamber (18), and a brushroll (20) disposed within the brushroll chamber (18) proximate to the suction inlet (14). The brushroll (20) includes a brush dowel (24), first agitation elements (26) coupled to the brush dowel (24) and extending outwardly therefrom, and second agitation elements (28) coupled to the brush dowel (24) and extending outwardly therefrom. The second agitation elements (28) each include an outer edge (30) with angled edge segments (32) to form peaks (34) and valleys (36) along a length thereof to adjust collected debris materials in the valleys (36). A catch feature (22) is coupled to the brushroll chamber (18) proximate to the brushroll (20). The catch feature (22) includes stripping elements (38) extending toward the brushroll (20) and aligned with the valleys (36) to engage collected debris materials.

A billiard ball used as a training aid for billiards. The ball may include a cored through hole or a hollow or removed section sized to allow the head of a cue stick to be set therethrough. The holes may be set though the center, and may include a widened bevel side to allow for entry from various angles. The ball may include a flat surface offset by ninety-degrees from both apertures, and / or may be useful with a flat set piece. A dowel may be set in the through hole.

The application provides a fixing mechanism for a cement concrete pavement force transmission rod, which comprises a plurality of steel bar fixing structures which are sequentially and spacedly arranged at the bottom of the pavement force transmission rod and used for supporting and fixing the pavement force transmission rod; the steel bar fixing structure comprises a steel bar fixing body in an inverted U shape, the steel bar fixing body is arranged in a cement concrete surface layer, and one end of the steel bar fixing body is connected with a first inverted L-shaped branch steel bar and the other end of the steel bar fixing body is connected with a second inverted L-shaped branch steel bar; the first inverted L-shaped branch steel bar and the second inverted L-shaped branch steel bar are respectively and spacedly arranged in different planes of a pavement structure below the cement concrete surface layer, respectively extend away from the steel bar fixing body, and respectively are located outside the opposite two sides of an U-shaped opening of the steel bar fixing body. The structure is economical and simple in construction technology, and can effectively improve the construction efficiency and construction quality.

The present application relates to the technical field of wood detection, and discloses a wall detector wood detection intelligent marking system, which comprises a first scanning unit, an analysis unit, a second scanning unit, a comparison unit, a calculation unit and a marking unit. The first scanning unit is used for constructing a multi-dimensional discrimination baseline containing a dielectric distribution entropy matrix, a regional dielectric fluctuation confidence interval and an interlayer dielectric transition coefficient, which is suitable for multi-layer walls. The analysis unit is used for screening suspicious areas and excluding normal interlayer interference. The second scanning unit is used for fine scanning at multiple angles, calculating anisotropic speckle parameters, and capturing the structure and orientation difference of wood structures and repair materials. The dynamic threshold of the comparison unit is used for distinguishing material types. The dynamic safety threshold of the calculation unit is combined with the accurate construction boundary of the marking unit, and different marking is performed according to the confidence level, so as to effectively exclude the interference of cement, gypsum and other repair materials, ensure the accurate positioning of original wood structures such as Ming and Qing wooden dowels and wood tie bars in ancient houses, and avoid construction damage.

The utility model discloses a manual all -in -one quick change connector with plug -pull locking structure belongs to plug connector device technical field. A manual all -in -one quick change connector with plug -pull locking structure, including socket and plug, still include: a plurality of sets of limit key groove, all set up on the socket, a plurality of sets of guide dowel, all set up in the plug, and the guide dowel is matched with limit key groove, two groups of pin card, respectively fixedly connected at the both sides of socket, square head, fixedly connected on the plug, handle mounting panel, rotation is connected on the square head, the utility model discloses a socket and plug, and the plug integrates a plurality of high -voltage line connectors and low -voltage communication line, realizes the integrated design of a plurality of connectors, and the connector adopts the mode of rotary handle locking, and after inserting the connector, rotates the handle, and the both ends pin card in locking hole can lock the connector plug.

The utility model discloses a kind of anti-falling buckle type waterproof joints, including key shell, spring is installed on the side wall of key shell, the top end of spring is connected with key, the bottom end of key is connected with the key shell through dowel on the side away from the spring, custom circular waterproof ring is set in the key shell, the one end of key shell is connected with male rubber core casing. Advantageous effect lies in: the utility model is designed by key, spring and dowel, can make key joint on key shell, form a press rebound buckle device, after butt joint with male end casing, utilize the rebound key device of assembled, realize male and female butt joint, realize locking and retreat by the cooperation between buckle, key card point buckle in casing concave place, realize the locking and retreat of waterproof joint, convenient to press key at any time Press operation, to facilitate the quick installation and disassembly of waterproof joint.

The utility model provides a kind of hydraulic fixture for end cover class parts, it is positioned to end cover by locating column cooperation end cover on opening counterbore, end cover is positioned by dowel, after placing the counterbore on end cover on locating column, end cover side wall is pushed and is tightly positioned dowel, the quick positioning of end cover is realized;Then by pressing plate from above tight end cover, because the structure of counterbore is relatively strong, press plate is set in the position above counterbore, ensure that end cover can be tightly pressed and not damage parts, ensure positioning stability.

A kind of paving cement concrete pavement device for airport pavement, paving device and method, contain the concrete lower layer (1) for as the bottom layer of paving cement concrete pavement, the concrete upper layer (2) for as the top layer of paving cement concrete pavement, for as the dowel bar (3) of interrelated concrete lower layer (1), through concrete lower layer (1) and dowel bar (3), realize the foundation support to concrete upper layer (2), through concrete upper layer (2), realize the pavement optimization of paving cement concrete pavement, realize the layer of bare face part paving performance type, solve the technical problem that all one-time cement concrete pavement forming on natural soil base is formed, thereby restricting the service life of airport concrete pavement, so as to reduce the number of functional maintenance to pavement in service period.

The utility model provides a kind of dowel material blocking mechanism, comprising: material guide seat, first blanking through-hole is provided in vertical direction through, and the material guide seat is equipped with the abutting passage through with first blanking through-hole, the width of abutting passage is less than the diameter of dowel;Flexible member, guide rod is installed on the output shaft of flexible member, the length direction of guide rod and the length direction of abutting passage are parallel;Blocking component, blocking component is slidably installed in abutting passage, and the end of blocking component close to flexible member is equipped with extension arm, and extension arm is detachably installed on guide rod.The present application can reduce cost, the material of blocking component is less and the price is cheaper, and blocking component is detachably installed, which is also more convenient for replacement and maintenance.

A locking assembly for a pivot assembly is provided. The pivot assembly includes a first pivot member having a circular opening and a second pivot member having a first shaft coaxially mounted within the circular opening for relative pivot movement of the first and second pivot members. The locking assembly includes pressure elements mounted within the circular opening to one of the pivot members and biased toward the other pivot member to prevent relative pivot movement, and an actuating mechanism configured to selectively move the pressure elements away from the other pivot member. In certain embodiments, the pressure elements comprise dowel pins mounted by springs to a mounting disk, and the actuating mechanism includes dowel-contacting fingers and an actuating element movable between locking and unlocking positions. The locking assembly can form part of a multi-pivot seat base assembly for vehicles and can be combined with a blocking system having pulleys, a flexible tension member, and blocking cleats to prevent unwanted movement for example during emergency conditions.

The utility model discloses a one two stage piston integrated compressor piston connecting rod mechanism, include: the conjoined piston, including the support plate and two pistons, and the opposite two ends of support plate are coaxially connected with piston respectively, and the piston is equipped with the leather bowl, and the middle part of support plate is equipped with two perforated holes, left connecting rod is pasted in one side of support plate, right connecting rod is pasted in the other side of support plate, and one end of right connecting rod is connected in one end of left connecting rod through the dowel, and the dowel is rotatably arranged in a perforated hole, and the other end of left connecting rod is formed with the boss, and the boss is movably arranged in another perforated hole and is connected in the other end of left connecting rod, and the boss is formed with the jack, and the drive shaft of the motor for transmission connection, and the eccentric shaft is eccentrically connected with the drive shaft, and the eccentric shaft is rotatably inserted in the jack. The utility model solves the problem that the traditional two stage compressor for the automobile air suspension cannot make linear motion with the same frequency, and the leather bowl on the piston is unevenly stressed, and the working life is low.

The utility model discloses a kind of thermoforming heating furnace material sheet stopper mounting structure, including main crossbeam, stopper and screw.The same size and interval distribution of multiple dowel pins are fixedly arranged on main crossbeam;Stopper includes installation part and stop part, and installation part is equipped with positioning hole, positioning hole is sleeved on dowel pin to realize positioning, installation part is concave, and main crossbeam is located in concave shape;One end of stop part is integrally formed with installation part, and the other end is contacted with material sheet to realize stop positioning;Screw is arranged on the side surface of installation part, and main crossbeam is clamped to fix stopper.Dowel pin is linearly arranged along main crossbeam, interval is equal, positioning hole and dowel pin are gap cooperation, and screw clamps the side surface of main crossbeam to prevent stopper from moving.The structure is fixed by the cooperation of positioning hole and dowel pin and screw clamping, realizes quick disassembly and assembly and accurate positioning, adapts multiple molds, improves thermoforming production line die changing efficiency and discharging centering accuracy.

The invention relates to an internal combustion engine (10) for a motor vehicle, comprising a crankcase (12) having at least two cylinders (18) arranged side by side and a web (28) arranged between the cylinders (18), and a cylinder head (14) which is formed separately from the crankcase (12) and connected to the crankcase (12). At least one dowel pin (38), formed separately from the crankcase (12) and the cylinder head (14), is provided, engaging in a corresponding first recess (40) formed in the web (28) and in a corresponding second recess (42) formed in the cylinder head (14), by means of which the crankcase (12) and the cylinder head (14) are connected to each other.

The invention relates to an internal combustion engine (10) for a motor vehicle, comprising a crankcase (12) having at least two cylinders (18) arranged side by side and a web (28) arranged between the cylinders (18), and a cylinder head (14) which is formed separately from the crankcase (12) and connected to the crankcase (12). At least one dowel pin (38), formed separately from the crankcase (12) and the cylinder head (14), is provided, engaging in a corresponding first recess (40) formed in the web (28) and in a corresponding second recess (42) formed in the cylinder head (14), by means of which the crankcase (12) and the cylinder head (14) are connected to each other.

1. Name of the design product: electric wrench (with expansion dowel pin). 2. Use of the design product: for clamping and disassembling of spacer bars. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view.

The present application provides a kind of multi-light material composite assemblable ductile buoyancy mooring chain.The single ring of the mooring chain is composed of polyimide resin core mold inner layer containing hollow beads and resin-based carbon fiber traction-resistant outer layer, and the core mold is composed of detachable single chain ring core mold and complete single chain ring core mold spaced jointing to ensure uninterrupted winding of carbon fiber on single ring body and realize multi-ring assembly extension.The detachable single chain ring is connected by mortise and tenon structure and embedded in dowel for fixing, and the complete single chain ring is a complete long circular ring structure.The proposed composite buoyancy mooring chain can be designed based on the size of core mold and carbon fiber layer, so that the overall density is less than the density of seawater, and it can be in floating state on the sea surface.