40results about How to "Ensure connection reliability" patented technology

The utility model relates to mechanical engineering technical field field discloses a fireproof cable bridge, including base, the inner wall of base is equipped with two installation grooves, the inner wall of two installation grooves is provided with temperature sensing element, the outer wall of temperature sensing element is fixedly connected with baffle, the inner wall of base is equipped with two storage tank, the outer wall of base is equipped with a plurality of fixed slots, the outer wall of base is installed for the connecting device of connection. In the utility model, when the fire needs to be extinguished and fire -retardant, after temperature sensing element senses high temperature, internal thermal expansion liquid expands rapidly and breaks its outer wall, makes baffle fall down and slides out of storage tank along installation groove, makes the fire -retardant material in the groove slide into base and cover cable. If the cable is spontaneous combustion, the fire -retardant material insulates oxygen and extinguishes the fire, forms the protective layer when the outside is on fire and protects the cable, and the structure is simple and reliable, relies on thermal expansion physical principle and mechanical structure linkage, reduces the failure risk.

This utility model relates to the field of protective cover technology, specifically a protective cover for connecting a rebar threaded sleeve. It includes a protective cover body, with a sealing plug and a sealing sleeve fixedly connected to the left side wall of the protective cover body. The sealing plug is located in the middle of the left side wall of the protective cover body, and the sealing sleeve is located outside the sealing plug. The protective cover body is inserted into one end of the rebar threaded sleeve via the sealing plug. In operation, the sealing plug is fully inserted into the exposed end of the rebar threaded sleeve. The threaded sleeve is rotated counterclockwise to move to the left along the outer wall of the threaded tube. The threaded sleeve drives the connecting rod and the compression ring to move to the left. The compression ring compresses the circular rubber strip and the sealing sleeve, causing the sealing sleeve to deform and tightly adhere to the outer wall of the rebar threaded sleeve. This reduces the gap between the inner wall of the sealing sleeve and the outer wall of the rebar threaded sleeve, forming an outer seal and reducing the entry of external dust and moisture into the rebar threaded sleeve.

The invention discloses a production device of an imitation aluminized mirror surface transfer printing film, and relates to the technical field of transfer printing film production, the production device comprises a support frame and a rolling shaft used for supporting a winding drum, the support frame is provided with two vertical frames arranged at an interval, side plates are arranged between the vertical frames, the rolling shaft is rotatably clamped between the side plates, and the rolling shaft is used for supporting the winding drum. The vertical frame on one side is fixedly connected with a winding motor set, the vertical frame on the other side is fixedly connected with a lead screw sliding rail set, the lead screw sliding rail set is used for lifting the side plate so that the winding motor set can drive the two winding shafts respectively, the side plate comprises an overturning frame, and the position, corresponding to the axis of the winding shafts, of the overturning frame is fixedly connected with a first electromagnet; the middle of the first electromagnet is rotationally connected with a second iron core, the winding shaft comprises a plurality of paper tube supporting plates and a limiting shaft, the paper tube supporting plates are located on the outer side of the limiting shaft, and the outer side of the limiting shaft is fixedly connected with a supporting block. Self-positioning clamping can be carried out on the winding drum and a paper tube, and the installation difficulty of the winding drum is simplified.

A track sensor arrangement consists of a wheel sensor (1), a detachable connection assembly (2) and a track holder (3). The detachable connection assembly (2) consists of a supply cable (4) and a plug (5) provided with an electric plug connection (6B). The track holder (3) consists of a support (7) and of connection elements (8). Inside the body (9) of the plug (5) an assembly compartment (10) is formed. The body (9) of the plug (5) is slidingly fitted on the support (7), wherein on the body (9) of the plug (5) a mounting clamp (11) is slidingly fitted. The mounting clamp (11) is fastened to the support (7) by means of a screw connection (12).

The application provides a wire SI performance test board for rapid docking, comprising a test mainboard, a plurality of test output interfaces are arranged on the front surface of the test mainboard, a first SMA interface is arranged on the upper side of the test output interface, a second SMA interface is arranged on the left side of the test output interface, a test input interface is arranged on the back surface of the test mainboard, the test input interface is provided with a first magnetic attraction assembly, the test mainboard further comprises a test input connector, the test input connector is provided with a second magnetic attraction assembly, one end of the test input connector is rapidly docked with the test input interface through the second magnetic attraction assembly and the first magnetic attraction assembly, and the other end of the test input connector is provided with a wire docking interface. The application can significantly improve the wire connection / detaching efficiency, is simple and reliable to operate, reduces interface abrasion, and has good adaptability.

The invention provides a data transmission direct connection structure and method allowing equipment displacement. The structure comprises a connecting interface; when the connection interface is in a connection state with external equipment, the connection interface is used as an electrical connection node capable of generating controlled displacement relative to the external equipment; the controlled displacement is realized through a mechanical structure of the connecting interface, and the mechanical structure can generate relative displacement under the action of stress, so that external force is preferentially converted into displacement of the connecting interface instead of stress concentration of an electrical contact surface. According to the application, the connection interface realizes controlled displacement through a mechanical structure of the connection interface, assistance of an external flexible cable or a suspension wire is not needed, the overall connection structure can be simplified, the interface integration level and the structural stability are improved, external force can be preferentially converted into relative displacement of the connection interface, the stress of an electrical contact surface is uniformly distributed, and the stability of the electrical contact surface is improved. Electrical connection reliability is guaranteed, the service life of the connection interface is prolonged, and the external force impact resistance of the connection interface is enhanced.

The application discloses a positioning type tungsten steel milling cutter disc assembly and relates to the field of tungsten steel milling cutter discs. The application comprises a tool shank body, a cutter disc is connected to the outer side of the tool shank body, a plurality of chip removal grooves are formed in the outer surface of the cutter disc, and an installation surface for installing a cutting tool is formed on one side of the chip removal groove; a positioning block is fixedly arranged on the installation surface; the cutting tool comprises a cutting block, positioning grooves are formed in the two side surfaces of the cutting block; the positioning grooves are opposite to the positioning block in position and are used for limiting the position of the cutting tool; two groups of abutting grooves are formed on one side of the installation surface, the abutting grooves abut against the outer side of the cutting tool, the inclined surface positioning block of the installation surface is engaged with the inclined surface positioning groove of the cutting tool, automatic guiding and positioning of the cutting block are realized, the manual adjustment steps are reduced, meanwhile, the two side abutting grooves limit the radial displacement of the cutting tool, resist the lateral cutting force in machining, and the cutting stability is improved.

The invention provides a light guide beam and main beam quick connecting structure for a large-span steel box girder bridge, and belongs to the field of bridge engineering. The device comprises a steel box main beam and a light guide beam, a transverse supporting plate and a longitudinal supporting plate are arranged in the steel box main beam, the light guide beam comprises two I-shaped main beams and a middle connecting frame, and a plurality of lock sleeves located on the outer side of the steel box main beam are fixedly installed on the transverse supporting plate. The ends, close to the steel box main beam, of the two I-shaped main beams are each provided with a quick positioning and locking mechanism, the quick positioning and locking mechanisms are used for being matched with a lock sleeve to achieve fixed connection of the steel box main beam and the light guide beam, and the lock sleeve is provided with a plurality of L-shaped lock openings which are rotationally and symmetrically distributed. And the quick positioning and locking mechanism comprises a plurality of rotatable rotating sleeves. The light guide beam and main beam quick connecting structure for the large-span steel box girder bridge has the advantages of being accurate in positioning, efficient in connection and reliable in locking.

The utility model relates to camera technical field discloses a camera lens shading structure, including camera shell, camera cover and support frame, camera shell side wall is equipped with camera cover, camera cover and camera shell side wall joint cooperation, camera shell inside is equipped with lens, camera shell side wall is equipped with support frame, support frame top and camera shell side wall rotation cooperation link, including quick -witted connection subassembly, set up in support frame bottom, quick -witted connection subassembly includes fixed part and base, still include shading subassembly, set up in camera cover inside, shading subassembly includes hard rubber seat and soft rubber seat, hard rubber seat with soft rubber seat passes through hot -pressing mould pressure and is combined, and shading subassembly and lens sleeve joint cooperation, this camera can effectively avoid the light leakage and the aesthetic problem caused by the rotation gap in the lens rotation process, improves the whole installation and maintenance efficiency through quick -witted connection subassembly simultaneously.

The present application relates to a kind of double-column pier system and construction method of quick construction in high-risk seismic area, belong to the technical field of fabricated structure engineering.The double-column pier of construction includes cap beam, pier column, pile cap, pile.The pier column and cap beam are connected by grouting steel pin and slot combination, and the pier column and pile cap are connected by socket and steel pin combination, and the new socket connection node structure of pier column-cap beam / pile cap can better realize mechanical transmission, guarantee the connection reliability and seismic safety of bridge node, the recess of corrugated shape is arranged in the pile cap, and shear stud is arranged below the pier column, which can improve the connection reliability between the pier column and the pile cap, the socket depth of the double-column pier can be reduced to 0.5d by this connection method, and the top grouting method is used to ensure the grouting density.The present application can realize convenient, quick prefabrication and assembly, and has good seismic performance, which guarantees the seismic safety of the system.

The utility model provides a fill roadbed side slope grading type combined supporting and retaining device, belongs to the technical field of fill roadbed engineering, and aims to solve the problems that an existing fill roadbed side slope supporting and retaining device is limited in integral transportation, depends on large machines and is tedious in installation; a large number of connecting pieces are needed for split type assembling, manual assembling is tedious, and the period is long. Comprising a retaining main body, retaining connecting beams, cross-shaped connecting blocks, graded connecting seats, a combined assembly and a limiting assembly, and the retaining connecting beams are arranged in the retaining main body longitudinally and transversely; a plurality of groups of cross-shaped connecting blocks are arranged, and the plurality of groups of cross-shaped connecting blocks are arranged in the retaining main body; the grading connecting seat is arranged at the lower part of the retaining main body; the combined assembly is arranged in the retaining main body; and the limiting assembly is arranged in the retaining main body. The utility model has the advantages of graded combination, quick connection, convenient transportation and the like.

The invention discloses a connector embedded type ocean pipe, belongs to the technical field of ocean pipelines, and is used for being sequentially connected and vertically extending to the deep position of the seabed. The pipeline comprises a pipeline body, joint embedded sections are arranged at the upper end and the lower end of the pipeline body, a plurality of embedded grooves spaced in the circumferential direction are formed in the outer end faces of the joint embedded sections, and internal thread sleeve pieces are arranged in the embedded grooves; the end face of the embedded section of the connector is further provided with a plurality of mounting hole sites located between the adjacent embedded grooves, and external thread screws are rotationally connected into the mounting hole sites and extend out of the end face of the pipeline body. And when adjacent pipeline main bodies are connected, the external thread screw of any pipeline main body is in threaded connection with the internal thread sleeve of the other pipeline main body, so that the end surfaces of the embedded sections of the two joints are hermetically attached. According to the scheme, through the embedded threaded connection structure, no flange needs to be exposed, the connection sealing performance and the corrosion resistance are improved, the submarine complex service environment is adapted, and the pipeline connection reliability and the structural stability are guaranteed.

The utility model relates to a vehicle-mounted back-row support and a fan. The vehicle-mounted back-row support comprises a first clamping plate and a second clamping plate. A first positioning step and a second positioning step are arranged on the first clamping plate at an interval; the vehicle-mounted back-row support further comprises a first connecting assembly and a second connecting assembly. The first connecting assembly and the second connecting assembly are both located between the first positioning step and the second positioning step, and the first connecting assembly and the second connecting assembly are distributed on the two sides of the center line of the first positioning step and the second positioning step. The structure is very simple, and meanwhile, the headrest rods are positioned through the first positioning step and the second positioning step, so that the compatibility of different sizes and different distances of the headrest rods can be effectively improved; in addition, the first connecting assembly and the second connecting assembly which are adjacent to the first positioning step and the second positioning step respectively are used for completing connection, the distance between a connecting point on the support and a corresponding force bearing point on the headrest rod can be shortened, and the strength of the clamping force is effectively improved.

This utility model proposes a battery pack cover and a battery pack. The battery pack cover includes a cover body, which comprises an upper plate profile and a lower plate profile. The upper and lower plate profiles are arranged parallel to each other and are fixedly connected by multiple connecting structures. This utility model adopts a double-layer plate profile and multi-point connection structure design, which significantly improves the overall rigidity and impact resistance of the battery pack cover. The upper and lower plate profiles form a stable grid-like support frame through horizontally, vertically, and obliquely arranged reinforcing ribs, and can be optionally equipped with intermediate support structures such as honeycomb core material or foam filling, which effectively improves bending and torsional resistance, suppresses large-span deformation, and enhances top protection through structural energy absorption mechanism, solving the technical problems of insufficient rigidity, easy deformation, and poor impact resistance of traditional single-layer plate structures.

This application relates to the field of rice processing technology and provides a self-heating rice flipping and fluffing device, including a rice fluffing unit, a flipping unit disposed above the rice fluffing unit, and conveying units disposed on both sides of the flipping unit; the flipping unit includes a support plate with a bearing plane, a clamping component disposed on the bearing plane, and a flipping component capable of driving the bearing plane to flip; the bearing plane is flush with the conveying surface of the conveying unit, and the conveying unit can convey the tray to the bearing plane along a second direction; the clamping component presses against the flipped edge of the tray, and the flipping of the bearing plane can make the tray opening face the rice fluffing unit. By setting the flipping unit to include the clamping component and the flipping component, this application can realize the integrated operation of automatic tray feeding, inverted unloading, automatic unloading, and rice fluffing, reducing transfer steps and improving the production efficiency of self-heating rice.

The utility model relates to the technical field of automobile connectors, in particular to an anti-seismic shielding automobile connector structure. According to the technical scheme, the connector comprises a first connecting piece and a second connecting piece, the connecting portion of the first connecting piece and the connecting portion of the second connecting piece are provided with a connecting end and a contact end respectively, and a first shielding layer and a second shielding layer are arranged between the connecting end and the contact end and used for shielding electromagnetism; a fastening connecting part used for assisting fastening connection of the first connecting piece and the second connecting piece is further arranged between the first connecting piece and the second connecting piece. The fastening connecting part comprises a connecting arm connected with the upper surface of the second connecting piece and a second hook clamping head connected with one side of the first connecting piece. According to the utility model, high-efficiency electromagnetic shielding is realized, shock resistance is realized by means of an elastic assembly and a hook clamping structure in the fastening connection part, and signal transmission stability and connection reliability are guaranteed in an omnibearing manner by means of cooperative fastening connection of multiple components in the fastening connection part.

A frame, a bogie, and a rail vehicle. The frame comprises two side beams and two cross beams connected between the two side beams; air springs of the bogie are mounted on the side beams; at least one auxiliary beam is connected between the two cross beams; the inner cavity of the auxiliary beam is divided into a first cavity and a second cavity; the first cavity is communicated with the inner cavity of one of the cross beams so as to jointly serve as an additional air chamber of one of the air springs, and the second cavity is communicated with the inner cavity of the other of the cross beams so as to jointly serve as an additional air chamber of the other of the air springs. In the present solution, the auxiliary beam of the bogie frame is used as a connecting member for connecting the front and rear two cross beams and is also divided into the first cavity and the second cavity, and the first cavity and the second cavity can be communicated with the inner cavities of the cross beams so as to serve as the additional air chambers of the air springs mounted on the bogie frame, such that the volume of the additional air chambers is increased, and the structure of the frame is simplified.

The utility model relates to a connector device capable of reducing connection space, and belongs to the technical field of battery connectors. The device comprises a wiring terminal, a conductive nut and a pressing rivet nut, a bent strip main body of the wiring terminal is laterally provided with a wire interface connected with a first wire, the bottom of the wiring terminal fixes a fuse and the pressing rivet nut through a bolt, and the pressing rivet nut is connected with a second wire. Through the integrated design of the bending structure of the wiring terminal and the fuse and the nut, the vertical layout of the two wires is realized, and the occupation of the transverse space is reduced by more than 50%. The device solves the problem of insufficient wiring space of the upper sealing cover of the sodium battery due to limitation of the bending radius of the lead, improves the space utilization rate and the connection reliability, and reduces the risk of short circuit through partition protection of the insulating layer.

The utility model discloses a detachable right-angle hanging plate structure which comprises a right-angle hanging plate body, an upper mounting hole is formed in the straight plate face of the right-angle hanging plate body, a bottom bending groove is formed in the bottom bending portion, below the upper mounting hole, of the right-angle hanging plate body, and the detachable right-angle hanging plate structure further comprises an external compensation mechanism. The outer compensation mechanism comprises a U-shaped main plate, a U-shaped auxiliary plate, a bottom bent main plate, a bottom bent auxiliary plate, a main mounting plate and an auxiliary mounting plate, the detachable outer compensation mechanism is arranged on the outer plate face of the right-angle hanging plate body for improvement, the outer compensation mechanism forms an outer frame protection structure outside the right-angle hanging plate body, and the outer compensation mechanism can conduct matched stress outside the right-angle hanging plate body; the stress strength of the right-angle hanging plate body is improved, and after the bent part of the right-angle hanging plate body is broken, the outer repairing mechanism is still protected outside the right-angle hanging plate body for stress, so that the right-angle hanging plate body cannot be separated from the broken part after being broken, the service life of the right-angle hanging plate body is prolonged, and the connection reliability and firmness of the right-angle hanging plate body are guaranteed.

The utility model discloses a small-number movable point rail frog for urban rail transit. The small-number movable point rail frog comprises lateral wing rails, straight wing rails, an integrated point rail, lateral fork heel rails, straight fork heel rails and pivot assemblies. The integrated point rail is of an axially symmetrical structure, is sleeved on the pivot assembly through a stepped hole formed in the heel end of the integrated point rail and can rigidly rotate; the center of the pivot assembly is located on the intersection point of the sharp angle bisector of the integrated point rail and the frog angle bisector. The heel end of the integrated point rail is in butt joint with the front ends of the lateral heel forking rail and the straight heel forking rail in a small clearance fit mode through convex-concave arc surfaces. The point rail can be universally used in left-opening and right-opening turnouts, the pulling force is reduced, insufficient displacement is avoided, the rotating center of the heel end of the point rail is located in the middle of the straight direction and the lateral direction, when the point rail is pulled by electric service conversion equipment to open the straight or lateral rail, the rotating angle is basically consistent, and the straight strand pulling force and the lateral strand pulling force are balanced.

The application discloses a kind of high tower body bolt construction and operation robot, belong to high tower body construction maintenance technical field, comprising: connecting seat, both ends are provided with climbing module, for climbing along the main rod of high tower body, and two groups of climbing module are crossed through the flange connection of main rod by alternative climbing;Climbing module includes openable and closable clamping mechanism and moving mechanism;Bolt operation module is installed on climbing module, and bolt operation module includes screwing mechanism, adjusting mechanism and visual positioning unit;The application realizes efficient and stable automation operation by double climbing module cooperation architecture, when meeting flange connection node, through the action of alternative holding, loosen, smoothly complete obstacle crossing, without manual high-altitude intervention throughout, eliminate safety hazard from the source;Solve the problem of large manual screwing error, uneven quality, effectively guarantee tower body structure precision and connection reliability.

The utility model relates to the technical field of generator, and disclose a kind of wiring terminal applied to generator temperature element lead-out wire, including fixed structure, the outer wall of fixed structure is connected with assembly structure, the inside of assembly structure top is clamped with fastening structure, the fixed structure includes fixed wallboard, the inside of fixed wallboard is installed with bolt, the top of bolt outer wall is equipped with wire slot, the assembly structure includes nut, by simplifying installation into two-step operation of "thread connection+clamping pressing".First, the basic assembly is completed by the thread rotation of nut and bolt, then press down the pressing cylinder after inserting the wire end into the placement hole, fastening can be realized;When disassembling, only need to press down the pressing ring, the clamping block can be separated from the snap ring without additional tool assistance.This design greatly shortens the installation time, significantly reduces the operation difficulty, even non-professionals can quickly get started, effectively improves the efficiency and convenience of wiring work.

A kind of self-adapting fastening method and system based on substation bolt torque, the method comprises: real-time acquisition bolt image and the temperature of the electrical connection point corresponding to bolt position and pre-processing, obtain bolt loosening angle, connecting plate offset angle and connection point temperature;Calculate bolt connection loosening index, when bolt connection loosening index is not less than predetermined loosening threshold, corresponding bolt is as pre-tightening bolt;Based on the rated current of bolt electrical connection node and predefined maximum safety temperature, determine target contact resistance;Based on target contact resistance and bolt contact interface material, calculate target pretightening force and correct, determine target torque;The torque of pre-tightening bolt is adjusted to target torque, and the contact resistance under target torque is obtained;When the contact resistance is not less than reference resistance, the target torque is adaptively adjusted.The present application improves the long-term operation safety and reliability of substation bolt connection by constructing adaptive closed-loop fastening control mechanism.

The invention discloses a control method of hot rivet welding connecting equipment, the hot rivet welding connecting equipment is used for connecting a first connecting piece and a second connecting piece, the first connecting piece is provided with a prefabricated hole, the hot rivet welding connecting equipment comprises a hot rivet welding gun body and electrode assemblies, and the electrode assemblies comprise a first electrode assembly and a second electrode assembly. The distance between the first electrode assembly and the second electrode assembly is adjustable, and the control method comprises the steps that the hot riveting welding gun body is controlled to move, so that the first electrode assembly and the prefabricated hole are oppositely arranged; controlling the first electrode assembly and the second electrode assembly to clamp the first connecting piece and the second connecting piece; placing a rivet in the first electrode assembly; and the first electrode assembly is controlled to drive the rivet to move towards the second electrode assembly, current is introduced into the first electrode assembly and the second electrode assembly, and connection between the rivet and the second connecting piece is achieved. According to the control method of the hot rivet welding connection equipment, the operation complexity can be reduced, the machining efficiency can be improved, the production cost can be reduced, and the quality problem can be avoided.

The utility model discloses a mounting bracket for a vacuum booster pump, which relates to the technical field of mounting brackets and comprises a booster pump body, a frame plate is provided with a through hole and a mounting hole, one end of a support screw tube penetrates through the mounting hole and extends to one side of the frame plate, and the mounting hole is provided with a sealing hole. A fixing assembly used for installing the supporting screw tube on a frame plate is arranged on the supporting screw tube, and the supporting sleeve is connected to the other end of the supporting screw tube in a threaded mode. The vacuum booster pump is reasonable in design structure, the supporting screw tube, the supporting sleeve and the abutting plate are arranged in a matched mode, the two-way locking structure of the fixing ring and the limiting nut is matched, the installation stability of the vacuum booster pump on a vehicle frame is obviously enhanced, the supporting nut further limits displacement of the supporting sleeve, and the service life of the vacuum booster pump is prolonged. The shaking of the booster pump when a vehicle runs on a bumpy road is effectively reduced, and the vibration transmission problem caused by the elastic buffer sleeve is avoided, so that the reliability of connection with a brake structure is guaranteed, and the brake safety is improved.

The utility model discloses a modularization is used for battery cooling's joint, and this joint is constituted by male head, female head and replaceable external joint, realizes modularization design, reduces maintenance cost, and external joint is connected with female head thread, guarantees sealing performance. The cooperation of the locking assembly and the plug assembly, the former contains L-shaped clamping head, pivot etc, realizes male head flexible clamping separation, the latter automatically controls the cavity on-off when male head is plugged, avoids medium leakage. The adjustable limiting column is equipped in the handle part of the clamping head, improves the connection stability and adaptability, and the ring groove and sealing ring of female head inner side wall constitute sealing assembly, enhance sealing effect. In addition, the pull ring design of handle part, convenient male head pulls out, reduces the operation difficulty, and the reliability and maintenance efficiency of battery cooling system are improved as a whole.

This invention relates to the field of intelligent distribution cabinet technology, specifically to an intelligent power grid distribution cabinet and its protection method with real-time monitoring and interlocking protection. The cabinet includes: a distribution cabinet body containing a circuit breaker and a disconnecting switch; an intelligent execution module installed on the circuit breaker; the disconnecting switch comprising: multiple sets of insulation groups, each set including two sets of insulating posts; a conductive arm group rotatably connected to one of the insulating posts; an elastic conductive component including two sets of elastic abutment structures and a clearance structure disposed between the two sets of elastic abutment structures; when the conductive arm group extends or retracts along its length, it can push the clearance structure aside and fit against the elastic abutment structure; and an energy storage structure with a trigger plate on a follower plate. The trigger plate cooperates with the energy storage structure to enable the energy storage structure to have a first state and a second state that are switched by being pulled, thereby driving the conductive arm group to move rapidly and shortening the time of arc generation and duration.

The utility model discloses a 3D printing ejector pin structure which comprises a base and an exhaust ejector pin connected to one end of the base, and the base is provided with an exhaust channel. The exhaust ejector pin comprises an ejector pin body, a lattice structure and an exhaust structure, the lattice structure is supported in the ejector pin body, and the exhaust structure is located at the end, away from the base, of the lattice structure; a plurality of hole channels are formed in the exhaust structure, and the hole channels in the exhaust structure are communicated with the exhaust channel through gaps in the lattice structure. When a product is subjected to injection molding in the molding cavity of the injection mold, one end of the ejector pin structure extends into the molding cavity, and air in the molding cavity is exhausted outwards through the exhaust ejector pin, so that air is effectively prevented from being accumulated in the mold, the air in the molding cavity of the mold is efficiently and accurately exhausted, and the appearance defect of the product caused by local air trapping is reduced.

This utility model discloses an anti-loosening AC connector locking structure, belonging to the technical field of locking structures. It includes a socket connector, one end of which is fixedly connected to an AC connector socket, and an AC connector plug is inserted into the AC connector socket. This utility model, by setting a positioning locking strip and a positioning locking groove, provides precise axial positioning guidance during connection, ensuring coaxial docking of the plug and socket. Simultaneously, the second tangential groove on the surface of the positioning locking strip provides a mechanical engagement point for the locking block, forming a stable force-bearing support surface to resist radial vibration. As the plug penetrates deeper, the locking block embeds into the second tangential groove under the action of a spring, utilizing friction and spring force to form a bidirectional locking force, resisting axial separation and ensuring connection stability. Furthermore, during unlocking, the limiting block can drive the locking block to precisely exit, reducing frictional wear.