33results about How to "Snap firmly" patented technology

A wide-screen power motor stepless speed regulation device for an electric vehicle relates to the technical field of electric vehicle motors and is characterized in that the wide-screen power motor stepless speed regulation device comprises a U-shaped fixed base, two parallel rotating shafts are rotatably arranged between two sides of the fixed base, the rotating shafts are respectively provided with a same speed regulation belt pulley, and the speed regulation belt pulley is connected with the fixed base. The speed regulation belt wheels are conical, the arrangement directions of the two speed regulation belt wheels are opposite, a speed regulation belt is arranged between the two speed regulation belt wheels, clamping blocks are arranged on the two sides, making contact with the speed regulation belt wheels, of the two ends of the speed regulation belt in a sliding mode, and a pushing plate is arranged between the clamping blocks. A lead screw is arranged on the side portion of the pushing plate and connected with the side portion of the fixed base through threads. The speed regulation device is simple in structure and technology, low in production and manufacturing cost, high in speed regulation response speed and convenient to use.

This application relates to the field of smartwatch technology, and provides a smartwatch including: a main unit and a watch band; the main unit has a slide rail with a groove; the watch band has a lead-in structure, the lead-in structure including a lead-in body and an unlocking component, the lead-in body having a groove, and the unlocking component being disposed on the lead-in body; in the connected state, the slide rail is engaged in the groove of the lead-in structure, and the latch of the unlocking component is engaged in the groove to prevent the slide rail from sliding out of the groove; moving the operating part of the unlocking component causes the latch to retract from the groove into a first clearance hole in the lead-in body, so that the slide rail can slide out of the groove. This application has a simple structure, and the watch band and main unit can be quickly separated, realizing quick disassembly and assembly of the watch band and improving the user experience. This application also provides a main unit, a lead-in structure, and a watch band.

The invention discloses a limited space tower reverse construction method construction instrument machining operation table, and particularly relates to the field of machining. A cam is rotationally connected to the interior of an air outlet cavity through a motor, and a piston plate is slidably connected to the position, below the cam, in the air outlet cavity; a plurality of fourth springs are fixedly connected between the piston plate and the air outlet cavity, the lower surface of the air outlet cavity is fixedly connected with a hollow bearing table, and the right side of the interior of the bearing table is fixedly connected with a piston cavity. Through the arrangement of the air outlet cavity, the cam, the piston, the bearing table, the piston cavity, the vent groove, a transverse rod, a first spring, a connecting block, a cleaning strip and a first movable opening, the effect of cleaning the table top of the operating table through the device is achieved, through the arrangement of the cam, the cam rotates, gas extrudes the transverse rod, and the cleaning strip connected through the connecting block is driven to move back and forth on the table top; and dust on the table top can be cleaned.

The utility model relates to an assembly type EPP floor heating module, including one EPP floor heating module and no. Two sides of one end of one EPP floor heating module are all fixedly connected with splicing positioning block, the one end of no. Control connecting frame is fixedly connected with splicing positioning block, the inner wall of splicing positioning block is equipped with through -going positioning hole, and the inner wall of through -going positioning hole is fixedly connected with inner anti -skid and prevent the pad of falling off. The utility model relates to an assembly type EPP floor heating module, and control connecting frame is clamped into the inner side of splicing positioning block, and positioning block is clamped into the inner side of through -going positioning hole through the effect of its rear end damper and elastic member and is positioned, can fast splicing positioning between one EPP floor heating module and no. EPP floor heating module, can greatly shorten construction time, reduce manual cost, accelerate the project progress, and simultaneously, if the failure of certain module appears, can quickly dismantle and replace, need not to dismantle entire floor heating system, reduced maintenance difficulty and cost.

This invention discloses a portable sediment sampler with a multifunctional collection structure for shallow sea use. It includes a connecting cylinder with a T-shaped operating handle fixedly connected to its top. A connecting layer column is movably installed at the bottom of the connecting cylinder, and a sampling mechanism is fixedly installed at the bottom of the connecting layer column. The sampling mechanism comprises a vertical cylinder, a compression spring, a sediment sampling cylinder, a first slot, a second slot, and a folded cylindrical plate. The sampling mechanism also includes a sealing cylinder, a threaded ring, a filter cotton sheet, and a filter plate. This sampler can simultaneously sample seabed sediment and seabed water, and can separate the sediment from the seabed water. During use, the sampler can be fixed to the side plate of a small fishing boat using an N-type mounting bracket, an adjusting rod, and a pressure disc. Furthermore, during the deep-sea sampling process, the support mechanism effectively prevents the sampling mechanism from tilting. The sampler also has an anti-loss function.

The utility model belongs to test fixture technical field especially relates to a double locking's microneedle test fixture. Including lower mould subassembly, the test site for placing the product to be measured is opened in lower mould subassembly, and at least one group of clamping blocks are symmetrically arranged in the both sides of lower mould subassembly, the upper mould subassembly for pressing together to the upside of lower mould subassembly, at least one group of buckle assembly are symmetrically arranged in the both sides of upper mould subassembly, and the buckle assembly is clamped to clamping block and makes upper mould subassembly and lower mould subassembly relative fixation, and the elastic sheet microneedle module is equipped in upper mould subassembly, and the elastic sheet microneedle of elastic sheet microneedle module is used to downwardly abut the product to be measured, a plurality of hand screws are arranged on upper mould subassembly, and hand screw is connected to lower mould subassembly through upper mould subassembly. The utility model discloses a buckle assembly and hand screw's double locking structure, realize upper mould subassembly and lower mould subassembly's quick locking and reinforcing locking, ensure that the elastic sheet microneedle and the product to be measured keep contact pressure stable between, have the advantages such as high test precision, good reliability, convenient operation.

The invention discloses a vagina medicine applying device for gynecological patients. The vagina medicine applying device comprises a pulling medicine applying device and a clamping pushing component. The invention belongs to the field of medical instruments, and particularly relates to a vagina medicine applying device for gynecological patients. The device serves as a gynecological vagina local drug delivery instrument, through optimization of a mechanical structure and integration of functions, technology upgrading and function innovation of a traditional vagina applicator are achieved, the industry current situation that a traditional gynecological drug application instrument is single in function and extensive in operation is broken through, triple improvement of the treatment effect, the use experience and the operation safety is achieved, and the device is worthy of popularization and application. A more efficient, safer and more humanized dosing tool is provided for gynecological clinical nursing, and the overall service quality of gynecological nursing can be improved.

The utility model discloses a fire extinguisher with spray pipe support relates to fire extinguisher technical field, including fire extinguisher body, handle and spray pipe body, the one side of fire extinguisher body is provided with handle. First, the fixed ring is inserted into the inside of fixed frame with the plug -in rod, then rotates the runner to drive T shape locking rod and plug -in rod locking, thereby can fix the plug -in rod, make the fixed ring can set up at the one side of spray pipe body, thereby make the spray pipe body can be more stable through the fixation of support when placing, and then avoid the fire extinguisher when being shaken to cause the spray pipe to be impacted, first, the butt joint rod is inserted into the inside of fixed ring with the protection pad, then rotates the bolt to push the triangular block, make the triangular block can drive the limiting rod and butt joint rod locking, thereby can install the protection pad fast on the one side of fixed ring, make the spray pipe body and fixed ring can be more stable when clamping, avoid the spray pipe body to produce damage or to loosen.

The universal modular mounting interface comprises an underwater butt joint seat, and a robot butt joint head is inserted into a cavity in the right end of the underwater butt joint seat; the underwater butt joint seat comprises a butt joint seat electrifying unit and an automatic reset water retaining unit, and the automatic reset water retaining unit used for preventing a water source from entering is arranged in an inner cavity of the right end of the butt joint seat electrifying unit. The locking mechanism is driven by the air cylinder, the track caulking groove is precisely matched with the main driving insertion rod, rapid and firm clamping with the butt joint seat locking groove can be achieved, and the locking mechanism bears the impact of underwater strong water flow and is not prone to loosening. Meanwhile, a power connection link adopts a time-delay plugging design driven by an electric push rod, and a power connection plug is driven to be in butt joint with the underwater connector only after the cavity is dry and locked, so that electrical sparks and equipment damage possibly caused by electrifying in a state that the cavity is not in place or has water are avoided. The whole action logic is clear, the control precision is high, and the automation and safety of the docking process are guaranteed.

The utility model relates to the field of sewage residue transportation, and discloses sewage residue transportation equipment which comprises a vehicle body, an axle is movably connected to the bottom end of a buffer structure, wheels are fixedly connected to the two ends of the axle, and a supporting rod is fixedly connected to the other side of the bottom end of the vehicle body. Supporting anti-skid feet are movably connected to the bottom ends of the supporting rods, a push-pull rod is fixedly connected to the top end of the other side of the vehicle body, a damper is fixedly connected to the inner top wall of the buffer box, a buffer block is fixedly connected to the bottom end of the damper, and the bottom end of the buffer block is fixedly connected with the surface of the axle through a bearing seat. And a damping spring is wound on the surface of the damper at the top end of the buffer block. According to the transportation equipment for the sewage residues, jolting vibration generated by rolling of the wheels can enable the axle to ascend, the buffer blocks slide to compress the dampers and the damping springs, then the dampers and the damping springs are used for absorbing and consuming vibration generated by rolling jolting of the wheels, and the stability and smoothness of vehicle body transfer are improved.

The utility model is applicable to the field of carton lock catches, and provides an all-paper carton lock catch and a carton, the all-paper carton lock catch comprises a blocking plate which is in a square structure and is provided with a square through hole in the middle, and sticking plates which are arranged on two sides of the blocking plate, are in a concave shape and are connected with the blocking plate through folding plates, the folding lock units are arranged on the pasting plates on the two sides and arranged in the concave faces of the pasting plates, the locking plates are arranged on the blocking plate and arranged on the two opposite sides in the square through hole, the locking plates and the pasting plates on the two sides are of a right-angle structure on the plane, and the locking plates are provided with locking grooves. The supporting frame is arranged on the locking plates on the two sides in a sleeving mode and is of a square structure; the utility model aims to solve the problems that in the prior art, lock catch plastic materials are frequently used in the market, and along with the trend of packaging plastic removal, the environmental protection property of the plastic lock catch gradually does not meet the market requirement; part of the raw materials are molded by paper pulp, so that the bearing capacity is relatively weak.

The utility model discloses a limb plastic anti-infection protective cover which comprises a positioning ring, a plastic waterproof sleeve is arranged at the bottom of the positioning ring, an elastic rubber sheet is fixedly connected to an inner cavity of the positioning ring, a through hole is formed in the top of the elastic rubber sheet, a clamping assembly is arranged at the bottom of the positioning ring, and the clamping assembly is fixedly connected with the plastic waterproof sleeve. The clamping assembly comprises an annular pressing plate, and an annular pressing groove matched with the annular pressing plate is formed in the bottom of the positioning ring. Through the arrangement of the clamping assembly, the plastic waterproof sleeve is fixedly connected to the bottom of the positioning ring, then the supporting body extends into an inner cavity of the plastic waterproof sleeve, sealing treatment is conducted between the positioning ring and the limb through matched use of the elastic rubber sheet and the through hole, and the plastic waterproof bag serves as a protective cover; and meanwhile, the rubber sheet is matched for waterproof isolation, so that invasion of water and dust is effectively avoided, and the purposes of high waterproof and dustproof performance and convenience in wearing can be achieved.

The utility model discloses a cell culture plate for screening liver cancer drugs, and belongs to the technical field of cell culture. The liver cancer drug screening cell culture plate comprises a plate body, a cover body is arranged at the top end of the plate body, a pair of hinges is installed on one side of the cover body, one end of each hinge is fixedly connected with one side of the plate body, a groove is formed in the top end of the plate body, a plurality of culture cells are installed at the bottom end of the groove, and insertion sleeves are installed at one ends of the two sides of the plate body. The other ends of the two sides of the board body are respectively provided with an inserting mechanism used for being connected with the inserting sleeve, each inserting mechanism comprises an inserting head, the top end and the bottom end of each inserting head are respectively provided with a clamping block, the top end and the bottom end of the inner side of each inserting sleeve are respectively provided with a clamping groove, and one end of each clamping block is connected with the inner side of the corresponding clamping groove in a clamped mode. The waste of the culture plate is reduced, and the practical value is higher.

This utility model relates to the technical field of honeycomb panel ceiling components, specifically to a honeycomb panel ceiling component that is easy to install. It includes a ceiling keel hook mechanism and a honeycomb panel ceiling body. The ceiling keel hook mechanism is composed of a triangular keel frame and ceiling hooks. A mounting base is fixedly installed at the bottom of the triangular keel frame. Symmetrically distributed L-shaped mounting feet are fixedly installed on both sides of the mounting base. A first inclined end face is provided on the side of the L-shaped mounting feet closest to the mounting base. A first mounting groove is provided between the first inclined end face and the mounting base. The honeycomb panel ceiling body is clamped between adjacent sets of the ceiling keel hook mechanism. Through the installation base, L-shaped mounting feet, first inclined end face, first mounting groove, inverted L-shaped mounting feet, second inclined end face, and second mounting groove, the installation structure of the honeycomb panel module is simpler and more stable, while also ensuring tight clamping and easy processing.

The utility model discloses a road anti-collision guardrail base dismounting assembly which comprises a rectangular sleeve welded to the top of a base, a guardrail is arranged above the base, the bottom of the guardrail is fixedly connected with a butt joint, the butt joint is inserted into an inner cavity of the rectangular sleeve, the two sides of an inner cavity of the butt joint are each provided with a pre-locking assembly, and the pre-locking assemblies are fixedly connected with the base. The pre-locking assembly comprises rectangular sliding grooves formed in the two sides of an inner cavity of the butt joint, sliding plates are slidably connected to inner cavities of the rectangular sliding grooves, limiting clamping pieces are fixedly connected to the tops and the bottoms of the opposite sides of the two sliding plates, and two limiting clamping grooves are formed in the two sides of the rectangular sleeve. The base and the guardrail are in butt joint through matched use of the rectangular sleeve and the butt joint, then the butt joint is pre-locked through arrangement of the pre-locking assembly, the butt joint and the guardrail are further locked under matched use of the locking assembly, and therefore the purposes that installation is easy, convenient and rapid, and connection is stable and firm can be achieved.

The invention discloses motor torque detection equipment, and belongs to the technical field of motor detection, the motor torque detection equipment comprises an equipment main body, a first anti-skid block and a second anti-skid block are arranged, and when a torque disc rotates to drive a rope and a connecting rod to ascend to measure the motor torque, the first anti-skid block and the second anti-skid block are connected to the equipment main body after the motor stops; the effect of timely fixing and locking the torque disc is achieved, the situation that the torque disc rotates to cause reduction of motor torque measurement data precision is prevented, after the torque disc stops rotating, a first servo motor is started, a first threaded rod is driven to rotate through rotation of a synchronous belt, and meanwhile a threaded sliding block is driven to slide along the side wall of a connecting frame; the sliding of the threaded sliding block drives the sliding rod to do telescopic motion through the rotation of the rotating rod, so that the first anti-sliding block and the second anti-sliding block are tightly attached to the surface of the torque disc, the effect of reducing the automatic rotation of the torque disc is achieved, and the effect of improving the motor torque data measurement precision is achieved.

The utility model discloses a continuous downhill road surface anti-skid structure which comprises a pre-buried trough plate pre-buried in a concrete cushion layer, a concrete buried layer is poured on the top of the concrete cushion layer, the pre-buried trough plate is buried in the concrete buried layer, an anti-skid assembly is arranged on the top of the pre-buried trough plate, and the anti-skid assembly is arranged on the top of the pre-buried trough plate. The anti-skid assembly comprises a connecting plate clamped to the top of the pre-buried trough plate, rubber protruding strips are fixedly connected to the two sides of the top of the connecting plate, a positioning plate is clamped to the top of the connecting plate, a cement mortar leveling layer is poured to the top of the concrete burying layer, and a plurality of anti-skid grooves are formed in the top of the cement mortar leveling layer in a cutting mode. The concrete cushion layer, the concrete burying layer and the positioning screws are matched for use, the pre-buried trough plate is pre-buried and fixed, under the matched use of the anti-skid groove and the anti-skid coating, the road has the anti-skid capacity, meanwhile, the anti-skid assembly is matched for use, an emergency anti-skid vehicle is formed, and the anti-skid effect is good. Therefore, the purposes of strong anti-skid capability and emergency anti-skid braking can be achieved.

The application discloses a back folding locking mechanism and a wheelchair. The back folding locking mechanism adopts a linkage mechanism, and a user can operate the back to be unlocked and folded by one hand, and the operation is convenient. The back folding locking mechanism comprises a lock hook assembly, a blocking buckle assembly, a back and a seat main frame. The back and the seat main frame are rotationally connected. The lock hook assembly is rotationally installed on the back. The blocking buckle assembly is installed on the seat main frame. The lock hook assembly comprises a pull rod, a first lock hook assembly and a second lock hook assembly which are installed at two ends of the pull rod. The first lock hook assembly and the second lock hook assembly are respectively rotationally installed on the back. The lock hook assembly and the blocking buckle assembly are clamped to be capable of limiting the back to rotate relative to the seat main frame.

This utility model relates to the field of pressure head mold technology, and discloses a pressure head mold suitable for rapid liquid absorption of makeup remover pads. It includes an operating table, an adjustment and fixing mechanism installed inside the operating table, a pressure cap mechanism installed on the top of the operating table, a pressure head block installed at the bottom of the pressure cap mechanism, a replacement mechanism installed inside the pressure head block, and multiple circulation holes fixedly connected to the bottom of the pressure head block. The adjustment and fixing mechanism includes a motor, a rotating rod fixedly connected to the drive end of the motor, and a follower rod rotatably connected to one end of the rotating rod. In this utility model, after the motor is started, the rotating rod drives the follower rod 1 and follower rod 2 to rotate synchronously, causing the limiting blocks at both ends to move to a size suitable for the makeup remover pad. The hydraulic cylinder is then activated, driving the moving block to move. The limiting rods 1 and 2 inside the moving block move within the L-shaped groove of the limiting block, causing the moving block to cause the pressure plate to flip.

The application discloses a snow plough machine cabin locking device, which comprises two lock units capable of being locked with each other, the two lock units are respectively arranged on a machine cabin cover and a chassis, the two lock units are a first lock unit and a second lock unit, the first lock unit comprises a magnetic lock main lock capable of generating magnetism by power supply and a main lock mounting base for fixing the magnetic lock main lock, the magnetic lock main lock is connected with a power supply unit and a power-on switch; the second lock unit comprises a suction plate and a suction plate mounting base for fixing the suction plate, the suction plate is attracted to the magnetic lock main lock after being powered on; a limiting component capable of being engaged with each other is arranged between the first lock unit and the second lock unit, the limiting component comprises oppositely arranged limiting plates and a limiting seat, the limiting seat is provided with a protrusion, and the limiting plate is provided with a groove capable of being engaged with the protrusion. The application solves the problems that the existing locking device occupies large space, is difficult to arrange, cannot be applied to the reset of a small and medium-sized machine cabin turnover mechanism, and the machine cabin cover is easy to be displaced, thereby reducing the locking reliability.

This application discloses a seat lateral movement state switching mechanism and a bus seat including the same. The mechanism is mounted on a seat frame and used to switch the seat's state. It includes: a connecting plate disposed between parallel and opposite seat frames, with a limiting stop on the connecting plate; a switching plate disposed on the connecting plate, comprising a pressing plate and an unlocking plate, with a non-zero included angle between the pressing plate and the unlocking plate; the pressing plate protruding relative to the seat frame; the unlocking plate extending between adjacent seat frames; and a limiting hole corresponding to the limiting stop on the unlocking plate, which engages with the limiting stop; the pressing plate, when pressed, can disengage the unlocking plate from the limiting stop; and an elastic element disposed on the unlocking plate, having an abutting end that abuts against the seat to provide a force for engaging the unlocking plate with the limiting stop when the pressing plate is released, thereby achieving convenient unlocking and locking of the seat.

The utility model relates to automatic bending foot device technical field discloses automatic bending foot shaping device, including organism, organism side wall fixedly connected with a plurality of U-shaped mould, organism side wall fixedly connected with a plurality of bending foot push table, every bending foot push table output all fixedly connected with the connecting platform, every connecting platform top all is provided with bending foot cutter head, bending foot cutter head lower surface fixedly connected with the fixed part, the fixed part lower surface fixedly connected with the card station, the connecting platform inside is provided with the connecting assembly, the connecting assembly includes a plurality of fixed shafts. In the utility model, by pulling operation shaft can quickly remove the limiting, separate fixed part, and automatic clamping reset is realized with the help of spring restoring force, without complex tools or tedious steps, greatly reduce the equipment downtime, make the production line can quickly respond to different process demand, flexible switching processing mode, effectively improve the flexibility and overall efficiency of production organization.

The invention discloses a photovoltaic module used for supporting a photovoltaic panel, and belongs to the technical field of photovoltaic equipment. The core structure comprises a rigid elastic piece and a flexible elastic piece, and the rigid elastic piece basically surrounds the flexible elastic piece and is in close contact with the flexible elastic piece. The rigid elastic piece is composed of a right-angle V-shaped part, a seat part and a C-shaped part, the right-angle V-shaped part is used for supporting the photovoltaic panel, the seat part is used for fixing the rigid elastic piece, and the C-shaped part is connected with the right-angle V-shaped part and the seat part and can generate elastic deformation; a gap is formed between the bottom end of the right-angle V-shaped part and the seat part, the gap can be expanded or shrunk when the C-shaped part deforms, the C-shaped part and the gap are always in close contact, and the gap does not disappear. According to the invention, through nesting cooperation of the rigid and flexible elastic members, the problems that a metal support member is easy to fatigue and fracture and poor in damping effect are solved, the defects that a flexible support member is insufficient in strength and easy to age are overcome, firm and elastic support of a photovoltaic panel is realized, the service life of an assembly is prolonged, and the operation stability of a photovoltaic system is improved.

The utility model relates to walking mechanism technical field discloses a robot walking structure, including the shell, the bottom fixedly connected with the top plate of shell, the top fixedly connected with two motor housings of top plate, the inside fixedly connected with drive assembly of motor housing, the outside mounted with the gyro wheel of drive assembly, the outside fixedly connected with the installation shell of motor housing, the inside fixedly connected with the fixed plate of installation shell, the inside slidingly connected with the sliding rod of fixed plate, the outside fixedly connected with the fixed ring of sliding rod, the outside fixedly connected with the limit ring of sliding rod. In the utility model, sliding rod is pulled to fixed plate direction through fixed ring, makes the inside recess of sliding rod and gyro wheel to separate, sliding rod slides in the inside fixed plate at this moment, spring is extruded, gyro wheel moves outward and separates with rotating shaft, and gyro wheel can be taken out, and after the hair wound by gyro wheel is cleaned.

The invention relates to the technical field of well repair fishing tools, and discloses an internal cutting self-locking type well repair fishing tool which solves the problem of poor stability and comprises a main body, a core executing mechanism is arranged outside the main body, a core locking mechanism is arranged at the lower end of the core executing mechanism, and a reset mechanism is arranged at the lower end of the core locking mechanism; the main body comprises an alignment drilling barrel, the core executing mechanism comprises a rotary inner cutting device, the core locking mechanism comprises a self-locking latch device, and the resetting mechanism comprises a tooth pushing spring; the rotary internal cutting device comprises a tooth pushing lantern ring; the self-locking latch device comprises a plurality of self-locking latches; the tool is stable in cutting, firm in self-locking, high in operation safety and stable in cutting, the tool drives the sliding push tooth ball to slide stably through threaded connection of the push tooth lantern ring and the thrust trapezoidal teeth and a trapezoidal guide structure, and cooperation of stretching and retracting of the inner cutting teeth and rotary cutting is achieved in cooperation with bidirectional elastic supporting of the push tooth spring.

This invention relates to the field of medical devices and discloses a multifunctional postoperative instrument moisturizing cabinet, comprising a moisturizing box, an electromechanical cabinet, a first connecting pipe, a second connecting pipe, a second controller, a humidity sensor, and a temperature sensor. The moisturizing box and the electromechanical cabinet are connected by the first and second connecting pipes. The second controller is fixedly installed on the left side of the electromechanical cabinet. The humidity sensor and the temperature sensor are fixedly installed sequentially from top to bottom on the left side inside the moisturizing box. This invention uses a moisturizing box to store surgical instruments. By using a water pump, a vacuum pump, and a moisturizing agent storage tank installed inside the electromechanical cabinet, in conjunction with the first and second connecting pipes connecting the electromechanical cabinet and the moisturizing box, moisturizing agent can be sprayed inside the moisturizing box for moisturizing while vacuuming the box, further enhancing the moisturizing effect.

The utility model discloses an indoor advisement player base device which comprises four embedded columns embedded in the ground, advisement players are arranged on the surfaces of the four embedded columns in a sleeved mode, limiting plates are arranged on the tops of the embedded columns, sliding grooves are formed in the tops of the embedded columns, and the limiting plates are connected with the sliding grooves. And the bottom of the limiting plate is fixedly connected with a fixing column penetrating into an inner cavity of the sliding groove, the bottom end of the fixing column is fixedly connected with a hemispherical clamping block, and the surface of the fixing column is slidably connected with a fusiform piece. Through the arrangement of the four embedded columns, the advertising machine is limited on the ground for the first time, through the cooperative use of the fixing columns, the hemispherical clamping blocks, the fusiform pieces, the rectangular grooves, the clamping blocks and the springs, the limiting plate is limited or released from limiting, and then the effect of limiting or releasing the limiting of the advertising machine is achieved; therefore, the advertising machine can be placed more stably, and the base limiting device is easy to assemble and disassemble.

The utility model discloses a kind of anti-falling denture tongue side invisible clasp structure, it is related to denture technical field, including memory alloy and antiskid mechanism, the side of memory alloy is equipped with docking groove;The inside of the docking groove is hingedly connected with docking block, and the inside of memory alloy is provided with the installation mechanism for fixing docking block, the installation mechanism includes screw groove, and the screw groove is located at the intermediate position of memory alloy top end. The anti-falling denture tongue side invisible clasp structure, by the docking block is passed through docking groove, so that docking block and docking groove keep hinged state, a certain pressure is applied to docking block, so that limit plate generates deformation and passes through docking groove, connecting rod is connected with the side of docking block, so that two clasp can be stably hinged in molar outside, so that clasp can be stably installed and fixed, and the shape and length of connecting rod can be adjusted according to different installation needs.