95results about How to "Improve fit stability" patented technology

The invention relates to a chassis type automatic brake gap adjusting mechanism of a commercial vehicle and a manufacturing method thereof and belongs to the field of automobile parts. According to the technical scheme adopted by the invention, the adjusting mechanism comprises a cam-shaped pressure arm structure for braking power transmission; a support seat is arranged below a pressure arm; a master adjusting shaft and a slave adjusting shaft are arranged at two sides of the pressure arm structure, respectively; threads are formed in both the master and slave adjusting shafts; adjusting screws with one end exposed are arranged on both the master and slave adjusting shafts; a transmission gear, a return spring and a bottom cover are arranged below the support seat and the bottom cover is fixed on a brake. The adjusting mechanism has the advantages that aiming at potential dangers and problems during braking, returning and gap adjusting processes, an innovative design is performed, the work performance of the adjusting mechanism is greatly improved, the cooperation and work stability of inner parts are enhanced and the multiple problems of non-uniform braking power, gap adjusting failure, adjusting mechanism deformation, braking failure and the like during braking are solved; if the adjusting mechanism is applied to a brake, the safety and stability of the brake can be greatly improved and the service life of the brake can be greatly prolonged.

The invention discloses a joint assembly of a desktop mechanical arm. The joint assembly comprises a big arm, a forearm and two connecting pieces arranged between the big arm and the forearm; the bigarm comprises a big arm main rod and a big arm auxiliary rod which are oppositely arranged; the forearm comprises a forearm main rod and a forearm auxiliary rod which are oppositely arranged; the first end of the big arm main rod is provided with two first hinge parts which are oppositely arranged left and right at intervals; the two connecting pieces are arranged side by side and left and right and are located between the two first hinge parts; the first end of the forearm main rod is provided with a second hinge part; the second hinge part is located between the two connecting pieces; the two first hinge parts, the two connecting pieces and the second hinge part are connected through a first hinge shaft; and the first end of the big arm auxiliary rod and the first end of the forearm auxiliary rod are hinged to the two opposite sides of the two connecting pieces correspondingly. According to the joint assembly of the desktop mechanical arm, the connecting strength is enhanced, the matching stability and the driving effect are improved, the supporting strength is enhanced, and the safety is improved. In addition, the invention further discloses the desktop mechanical arm and a robot.

The invention discloses a juice extraction machine, which comprises a base, a driving unit, a container, a cover, a spiral extraction device and a juice extraction net, wherein the bottom wall of the container 30 is provided with a through hole and a residue outlet, and the peripheral wall of the container 30 is provided with a juice outlet. The cover 40 can be covered and connected onto the peripheral wall of the container 30 and is provided with a material input opening. The spiral extraction device 50 is arranged in the container 30, and the driving unit is connected with the rotating extraction unit 50 for driving the spiral extraction device 50 to rotate relative to the container 30 for realizing the juice extraction. The juice extraction net 60 is arranged in the container 30 and is positioned outside the rotating extraction device 50, the inner wall of the juice extraction net 60 is provided with a plurality of jade cutter ribs 61 capable of realizing the jade cutter effects, and the jade cutter ribs 61 are in inclined arrangement at intervals. The juice extraction machine has the following advantages that the jade cutter ribs are in inclined arrangement at intervals and are matched with the spiral extraction device, the extracted object vortex effect can be generated and enhanced, the extraction time number and the collision time number of the extracted objects are increased, the juice extraction rate is improved, the operation speed of the extracted objects can be accelerated, and the juice extraction speed is accelerated.

A fitted wrap device (10) is provided for covering sides (106 and 108) and ends (10 and 112) of the base unit (102) of an ensemble bed (100). The device is formed of a panel (12) of fabric with joined or adjustable joined ends (22 and 24). The panel provides an opening (17) for slipping over a mattress (104) on the base unit. A retaining arrangement (30) retains the device about the base unit.

The invention relates to a stirring method and a stirring apparatus thereof. The stirring method is characterized in that: a main shaft is employed; a revolutional support is arranged on the main shaft; a driving gear is arranged on the revolutional support; and the revolutional support is driven by the driving gear to generate revolution; besides, two secondary driving shafts are arranged on the revolutional support; secondary drive motors are arranged at and are connected with the two secondary driving shafts; and the secondary drive motors are driven by the secondary driving shafts to carry out autoroatation. According to the invention, the stirring method is rapid and is highly effective; and the stability is high and the energy consumption is low; besides, autoroatation and revolution of secondary driving shafts can be effectively realized; meanwhile, independent stirring and driving of a single secondary driving shaft are also supported, so that a demand on mixing and stirring of fluid with different viscosities and non fluid can be met. Moreover, the stirring apparatus has advantages of reasonable structure and design as well as uniform and highly efficient stirring performance; on the basis of combination of autoroatation and revolution of the secondary driving shafts, uniform and highly efficient stirring as well as rapid tank cleaning operation can be realized; and time saving and power saving purposes can be achieved; meanwhile, control on autoroatation and revolution of the secondary driving shafts can be adjusted independently; therefore, stirring work that is suitable for different fluid and materials can be realized.

The invention relates to an automatic exhaust and liquid stop and anti-blood backflow high-speed precision intelligent security infusion set, and belongs to the technical field of medical appliances. The infusion set comprises a drip chamber, a lower catheter arranged at the bottom of the drip chamber, a special interface for a positive pressure needle-free connector arranged at the tail end of the lower catheter, and an infusion needle, wherein a drug passing membrane through which all liquid drugs pass is arranged in the drip chamber, and comprises a drug passing membrane fixing belt fixed by the drip chamber, and a drug passing membrane free belt unfixed by the drip chamber, and a partition plate is arranged above the drug passing membrane; and a cavity above the drug passing membrane in the drip chamber is divided into a liquid inlet outer cavity and a liquid inlet inner cavity by the partition plate, and the liquid inlet outer cavity is communicated with the drug passing membrane fixing belt through a channel arranged on the drug passing membrane fixing belt. The infusion set has the advantages of automatic exhaust, automatic liquid stop and blood backflow prevention, high-speed precision filtration, the special interface for the positive pressure needle-free connector, automatic liquid storage and the like, thus realizing the safe and intelligent infusion.

The invention discloses a curved-surface screen protector. The curved-surface screen protector comprises a first PET release film, a first hardening layer, a base material layer, a second hardening layer, a silica gel layer and a fluorinated organosilicone release layer which are stacked sequentially from top to bottom, wherein the first PET release film comprises a PET release film body and a first adhesive layer arranged below the PET release film body. The curved-surface screen protector is high in hardness, high in stability after fitting a curved mobile phone, capable of fitting a curved-surface screen perfectly, durable, resistant to scratch and easy in sticking and offers more stable, effective and comprehensive protection for the curved-surface screen. The invention further discloses a coating and laminating method and a forming method of the curved-surface screen protector. The coating and laminating method is simple in technology, fewer in step and safe to implement. The forming method is simple in technology, safe and simple to implement and low in cost.

The invention provides a household appliance and a door assembly thereof. The door assembly comprises a door plate and a door handle, wherein a handle groove used for containing the door handle is formed in the door plate, the door handle is arranged at the handle groove, is matched with the shape of the handle groove and can move back and forth relative to the door plate so as to extend out of orretract into the handle groove. According to the door assembly, the handle groove is formed in the door plate, the door handle is movably arranged at the handle groove, the door handle can retract into the handle groove when not being used, so that the effect of hiding the door handle is achieved, the whole door board is smooth, attractive and elegant, and the attractiveness of the product is improved; meanwhile, the phenomenon that a user can be easily scratched due to the fact that the two ends of certain door handles are protruded in the prior art is also avoided, and the use experience ofthe user is improved; and when the door handle needs to be used, the door handle can extend out of the handle groove so as to protrude out of the surface of the door plate, it is guaranteed that theuser can hold the door handle by hand to carry out door opening, door closing and the like, so that the corresponding functions of the door handle is realized.

The invention discloses a traditional Chinese medicine composition with effect of removing acne and a preparation method and application of the traditional Chinese medicine composition. The traditional Chinese medicine composition is prepared from the following components in percentages by weight: 10-20% of Radix Pulsatillae, 10-20% of Radix Gentianae, 5-10% of Radix Sophorae Flavescentis, 5-10% of Herba speranskiae tuberculatae, 5-10% of Herba Pogostemonis, 5-10% of Herba Taraxaci, 5-10% of Herba Artemisiae Scopariae, 5-10% of Radix Et Rhizoma Rhei, 5-10% of Cortex Phellodendri, 1-5% of Radix Berberidis soulieanae and 1-5% of Radix Scutellariae. The traditional Chinese medicine composition has the beneficial effects that the traditional Chinese medicine composition is matched with other raw materials of cosmetics stably and is lasting in effect; and by synergistic effect of traditional Chinese medicine ingredients, the effect of preventing and removing acne is achieved in the aspects of oil control, bacterial resistance, heat clearing-away and toxic substances removing, blood stasis dispelling and stagnation eliminating, and the like.

The invention relates to an anti-puncturing tyre and a preparation method of the anti-puncturing tyre. The anti-puncturing tyre is sequentially provided with an air-tight layer, a curtain cloth layer, a belted layer and a tread from inside to outside, wherein a rubber self-sealing layer is arranged between the air-tight layer and the curtain cloth layer; the rubber self-sealing layer is composed of more than one layer of rubber sheets by an adhesive. The thickness of the rubber self-sealing layer is 0.2mm-5.0mm and the thickness of the air-tight layer is 0.5mm-3.0mm. The anti-puncturing tyre is simple in structure and reasonable in design and has the characteristics of high production efficiency, low cost, good anti-puncturing effect, high safety performance and the like.

The invention discloses a modified BOPP composite film, and a preparation method of the composite film and an optical glue. The modified BOPP composite film comprises an upper protective layer, an using layer, an upper optical glue layer, a BOPP composite film, a lower optical glue layer, and a lower protective layer which are overlapped successively from top to bottom. The modified BOPP compositefilm is skillful and reasonable in structure design; the light transmittance rate reaches 90 to 97%; the haze degree is low; the light transmittance adjustable performance is excellent; bending resistance and excellent flexibility are achieved; folding mark is not easily cause; the comprehensive performance is excellent; function requirements of different liquid crystal display screens are satisfied; it is beneficial for production of flexible fixing of curved display screens, flexible coiled display screens, flexible folding display screens, and whole flexible display screens; and the suitable range is wide.

The invention relates to a sliding bearing assembly of a magnetic pump and a magnetic pump, wherein the sliding bearing assembly consists of a bearing seat (1), a sliding bearing (2) and anti-rotationkey panels (3a, 3b) ; circular notch planes (21a, 21b) are symmetrically arranged on the outer circle (20) of the sliding bearing (2), a male end (24) is arranged at the outer side end of the slidingbearing (2), the outer circle (20) of the sliding bearing is matched with the inner hole of the bearing seat (1), anti-rotation key panels (3a, 3b) for complementing the outer circle (20) of the sliding bearing are respectively arranged on circular notch planes (21a, 21b) symmetrically arranged on the outer circle (20) of the sliding bearing, and the anti-rotation key panels (3a, 3b) are fixedlyconnected with the bearing seat (1) through locking screws (15). According to the sliding bearing assembly of a magnetic pump, the anti-rotation fit between the sliding bearing (2) and the bearing seat (1) is formed through the anti-rotation key panels (3a, 3b), and meanwhile, the sliding bearing (2) is matched with the axial spigot of the bearing seat (1), so that the sliding bearing (2) is prevented from moving to the outer side of the bearing seat in the axial direction so that the sliding bearing is not easy to get damaged, the installation is stable, and the running stability of the shaftsystem of the magnetic pump is improved.

The invention belongs to the technical field of cosmetics and particularly discloses a use of tangerine peel active extract. The tangerine peel active extract is added to a cosmetic product to prepare a sebum-control cosmetic product capable of inhibiting skin sebum secretion. The sebum-control cosmetic product containing the tangerine peel extract can inhibit the skin from producing mass sebum, can keep skin dry and cool instantly and constantly, can reduce sebum secretion and control skin sebum secretion for long time, is mild, and has lasting effect. The sebum-control cosmetic product also has moisturizing and skin barrier restoring effects and can condition and remediate oily skin and combination skin.

The invention belongs to the technical field of cosmetics, and particularly discloses a composition with a whitening function, which can be applied to whitening cosmetics. The composition with the whitening function comprises propolis extract, dried orange peel extract and epidermal growth factor in a weight ratio of (1 to 5): (0.5 to 3): (0.01 to 0.5). The natural non-irritating substance is usedas a raw material of the whitening composition, by virtue of the synergistic effect of ingredients, the skin can be conditioned and maintained, the composition has the effect for resisting the inflammation and allergy, resisting the oxidation, inhibiting the tyrosinase activity, regulating the structure of cuticle, and promoting the cell regeneration, thereby achieving an efficacy for whitening the skin and improving the glossiness and smoothness of the skin, and improving the skin problems of people such as dryness, discoloration, wax yellow color and no glossiness.

The invention provides a starter, belongs to the technical field of machinery and solves the problems that an existing starter is matched with a start cup unstably and is stressed unevenly. The starter comprises a machine body, a rotating shaft and a clutch mechanism, wherein the rotating shaft is arranged inside the machine body; the clutch mechanism is connected to the rotating shaft; the clutchmechanism comprises a claw base and a plurality of start claws, wherein the claw base is axially fixed to one end of the rotating shaft; the start claws are distributed inside the claw base in the circumferential direction; each start claw is hinged with the claw base; one side of the claw base is provided with a friction plate and an elastic part; a driving gear is fixed to one end of the rotating shaft and is positioned inside the claw base; the inner side of each start claw is provided with an engaging part which is engaged with the driving gear; the friction plate always leans against onesidewall of the machine body under the effect of the elastic force of the elastic part; the friction plate is provided with a stop part toward the claw base; and when the rotating shaft rotates in the direction where the start claws extend out of the claw base, the stop part leans against the inner sidewall of one start claw. The starter has the advantages of being better in stability, stressed more uniformly, long in service life, simple in structure and the like.

The invention relates to a chassis type automatic brake gap adjusting mechanism of a commercial vehicle and a manufacturing method thereof and belongs to the field of automobile parts. According to the technical scheme adopted by the invention, the adjusting mechanism comprises a cam-shaped pressure arm structure for braking power transmission; a support seat is arranged below a pressure arm; a master adjusting shaft and a slave adjusting shaft are arranged at two sides of the pressure arm structure, respectively; threads are formed in both the master and slave adjusting shafts; adjusting screws with one end exposed are arranged on both the master and slave adjusting shafts; a transmission gear, a return spring and a bottom cover are arranged below the support seat and the bottom cover is fixed on a brake. The adjusting mechanism has the advantages that aiming at potential dangers and problems during braking, returning and gap adjusting processes, an innovative design is performed, the work performance of the adjusting mechanism is greatly improved, the cooperation and work stability of inner parts are enhanced and the multiple problems of non-uniform braking power, gap adjusting failure, adjusting mechanism deformation, braking failure and the like during braking are solved; if the adjusting mechanism is applied to a brake, the safety and stability of the brake can be greatly improved and the service life of the brake can be greatly prolonged.

The invention discloses a corner stamping and blanking rough die for a metal cutting part top block frame air defence stress marks, and the structure comprises an air pipe inserting hole, a rubber ring, a top cover plate block, a mold locking column, a parting stamping groove, a centre groove and a base. According to the invention, the matching of the parting stamping groove and the centre grooveis realize, a traditional single-part ejector sleeve is converted into a four-position ejector pin barrel body and a top block separating frame mechanism, the center end of a mold plate surface at thefour sides can be conveniently positioned, the corner deviation during stamping of a top plate can be prevented, stable inclined surface centralizing treatment phenomenon, stopping work of mold equipment after the ejector sleeve damage is also prevented, then a needle bottom sliding seat plate is used for pulling and positioning from a four-position cross to a three-position Y-shaped supporting track, replacement of the ejector sleeve loss is realized and the work is continuous, the effect that the ejector sleeve can be displaced and the top block can be clamped can be formed under the stamping internal environment, the probability of the stress mark in the product can be reduced, so that the top pressure position of the plate is continuously and effectively reset, when the ejector pin groove is conveniently discharged, the single performance of the ejector sleeve structure is optimized, and the multi-direction pressure-resisting pushing effect is improved.

The present invention discloses a metal bend high-voltage connector. The high-voltage connector comprises a plug module and a socket module, the plug module comprises a bend housing, a front rubber core, a signal pin, a rear rubber core, a plug waterproof loop, a jack piece, a fastening handle, a position determination part, a shielding pressing ring module, a cable waterproof loop and a rear cover. The socket module comprises a socket housing, a socket rubber core, a wave washer, a connection pin, an anti-contact hand hat, a socket waterproof lop and a signal jack piece. The metal bend high-voltage connector is ingenious in structure design, an ensure the accurate connection of the plug module and the socket module, is good in connection effect, is closer in coupling, cannot be easily fell off, increases the matching stability, is firm in connection and good in shielding effect, reduces the outside interference, is good in seal effect, can effectively ensure the work reliability and is long in service life; besides, the jack piece is embedded into a connection plug, the end portion of the connection pin is provided with the anti-contact hand hat, and therefore, people's hands areprevented from touching the jack sleeve or the connection pin due to misoperation and the usage safety is greatly improved.

The invention relates to the technical field of cushion packages and discloses a cushion structure used for the inside of a package box and a package structure. The cushion structure used for the inside of the package box comprises a first component and a second component, wherein the second component is matched with the box body of the package box; the first component is prepared from a flexible anti-static material and contacts with a liquid crystal product in the package box; the first component and the second component can be detachably inserted and matched. In the cushion structure used for the inside of the package box, the first component contacting with the liquid crystal product is capable of reducing the generation of static electricity in the package box, the second component is matched with the box body of the package box, so as to exert positioning and cushioning effects; the first and second components can be detachably inserted and matched, and matching stability is high; when one of the first and second components is damaged, the component which is not damaged is combined with other components again. Thus, matching fastness among various parts of the cushion structure in the package box is good, and use cost is low.

The invention discloses a guarding device for building construction used for a fence of a building construction site. The guarding device comprises a device main body which is of a boot-shaped structure and with the hollow interior. A first water inlet and a first water outlet are formed in the two sides of the length direction of the lower part of the device main body, wherein the first water inlet and the first water outlet communicate with the interior of the device main body. The first water inlet and the first water outlet are in detachable and inserted connection with first pipe plugs. The side of the width direction of the device main body is a flat side, and the upper part of the flat side is rotationally provided with a connecting plate. One end of the connecting plate is rotationally connected with the edge of the horizontal direction of the flat side of the device main body. The other end of the connecting plate is provided with a pair of opposite connecting holes. The otherside, adapted to the arranged height of the connecting plate, of the flat side is provided with a connecting column, wherein the size of the connecting column is adapted to the size of the connectingholes. After a plurality of device main bodies are arranged in rows, the connecting holes of each connecting plate can be in inserted and connected fit with the corresponding connecting column of theadjacent device main body by overturning the corresponding connecting plate, so that the device main bodies are connected and fixed to one another side by side.

The invention relates to a bolt containing device which comprises a storage rack and a bolt containing plate set. The storage rack comprises supporting frame plates, a first side plate and a second side plate. A plurality of first sliding rails are arranged on the first side plate, a plurality of second sliding rails are arranged on the second side plate, a first limiting plate and a second limiting plate are arranged on the two sides of each first sliding rail and the two sides of each second sliding rail respectively, convex plates are arranged on the first limiting plates and the second limiting plates, and a sliding groove is formed between each first sliding plate and the corresponding second limiting plate. The bolt containing plate set is composed of a plurality of containing plates, mounting grooves are formed in the two sides of the containing plates, a first mounting plate and a second mounting plate are arranged at the two sides of each mounting groove respectively, top plates are arranged at the tops of the mounting grooves, and a plurality of bolt containing holes are formed in the containing plates. The bolt containing device is firm in structure, reasonable in design, small in occupied space and large in bolt storage number, storage and taking operation is convenient, centralized management of bolt storage is facilitated, and the machining efficiency of a heat exchanger is improved.

The invention relates to a supporting structure for a plastic part hot melting welding column. The supporting structure is fixedly connected with a turning edge of a matching part. The supporting structure is composed of a supporting platform, a column platform and reinforcing ribs, wherein the supporting platform is composed of a straight stretching section and an outwards-extending section which are connected to form a whole body; the column platform is fixedly arranged in the center of the outwards-extending section of the supporting platform; the column platform is composed of a cylinder wall and an upper cover connected with the cylinder wall; a cavity structure is formed by the cylinder wall and the upper cover; a circular hole is formed in the center of the upper cover; the lower surface of the upper cover is vertical to the axis of a cylinder defined by the cylinder wall; the reinforcing ribs are fixedly connected with the left and right sides of the upper surface of the outwards-extending section; the reinforcing ribs extend to the outer appearance of the matching part from the front end of the outwards-extending section of the supporting platform and are connected with the straight stretching section of the outwards-extending section, the lower surface of the turning edge of the matching part and the outer appearance of the matching part. According to the supporting structure for the plastic part hot melting welding column, the contact area between the welding column and the supporting structure is enlarged and the supporting strength is improved; the supporting structure has the good assembling adaptability on a product with the large appearance curvature change.

The invention discloses an OLED display device. The OLED display device comprises a bottom plate and a cover plate which are opposite, and the bottom plate is provided with a first surface and a second surface which are opposite. The OLED display device further comprises a display area, a non-display area, an OLED light-emitting assembly, first electrodes, second electrodes, conductive protrusionsand a flexible printed circuit board, wherein the OLED light-emitting assembly is arranged on the first surface of the bottom plate; the first electrodes are arranged on the first surface of the bottom plate and located in the non-display area; the second electrodes are arranged on the cover plate and located in the non-display area; the conductive protrusions are arranged between the bottom plate and the cover plate and are electrically connected with the first electrodes and the second electrodes respectively; the flexible printed circuit board is provided with a first end and a second endwhich are opposite, the first end is electrically connected with the second electrodes, and the second end extends to the side, wherein the second surface is located, of the bottom plate. According tothe OLED display device, the risk that the flexible printed circuit board is peeled off is reduced, and the fitting stability of the flexible printed circuit board is improved.

The invention discloses a tread layer bonding device. The tread layer bonding device comprises a tread conveying frame, a guide rail, a sliding block, omni wheels, side stop rollers, a tread pressingconnecting rod, a tread pressing roller, a tread pressing cylinder and a tread conveying cylinder. When a tread layer is bonded, the tread conveying cylinder pushes the tread conveying frame to slidein the direction close to a forming drum, and the tread pressing cylinder pushes the tread pressing connecting rod to rotate so that the tread pressing roller can press against the outer peripheral surface of the forming drum. The invention further discloses a tire forming machine. According to the tread layer bonding device, the movement of the air cylinders and the guide rail is adopted, accurate control is facilitated, the bonding stability is good, and the precision is high. According to the tire forming machine, only one forming drum is adopted, maintenance is easy, and the operation is convenient; and corresponding conveying devices are designed for the four layers of materials of an airtight layer, an inner cord fabric layer, an outer cord fabric layer and the tread layer, the fourlayers of materials only need to be fed once, no waiting and material change are needed, the materials do not interfere with each other and can be conveyed at the same time, the working intensity of workers is greatly reduced, and the production efficiency is improved.

The invention relates to a movement swing conveying device for a mining drill pipe and belongs to the technical field of geological drilling. The device comprises a base rack and a containing plate, afront end assembly rod is arranged on the base rack, and the front end of the containing plate is assembled on the front end assembly rod through a shaft; a supporting plate is fixed to the bottom ofthe containing plate, an inclined driving hydraulic cylinder is assembled at the bottom of the supporting plate through a shaft, and a lifting plate is arranged on the portion, located at the front side of the front end assembly rod, of the base rack; an overturning arc supporting plate is arranged on the lifting plate, a horizontal sliding module is further arranged on the base rack, and a horizontal driving module and a lateral sliding module are arranged in the horizontal sliding module; a lateral driving module and a vertical sliding module are arranged in the lateral sliding module, a vertical driving module and an overturning module are arranged in the vertical sliding module, and a clamping module is arranged on the overturning module. The problem of low flexibility of an existingmovement swing device for drilling pipe arrangement and placement is solved, an arrangement and placement device of a multi-layer structure is adopted, the clamping module has three sliding degrees offreedom, the clamping selection range of the drill pipe to the space position where the drill pipe is located is effectively increased, and the flexibility and practicability are improved.

The invention relates to a marine crane hook pulley fixing device and fixing method and belongs to the technical field of machinery. The marine crane hook pulley fixing device comprises a control mechanism and a performing mechanism. The control mechanism comprises an automatic reset hydraulic cylinder and a control device thereof. The performing mechanism comprises a locking pin and a poking rod which is fixed to the end of the locking pin and located on the outer side of connection plates. The locking pin is arranged in an installation hole in a penetrating-inserting mode. The tail end of the poking rod is hinged to the tail end of a piston rod of the automatic reset hydraulic cylinder. The locking pin is provided with a buckle part. A locking buckle plate is fixed to the upper portion of the pulley and is provided with a clamping groove matched with the buckle part of the locking pin. A limiting plate and a baffle are fixed between the two connection plates. The limiting plate is abutted against the side, far away from the locking pin, of the locking buckle plate. The baffle is arranged at the top of the locking buckle plate and is abutted against the locking buckle plate. The fixing method comprises the steps that the control mechanism is started to drive the performing mechanism to act, and the control mechanism is stopped. Compared with the existing manual locking mode, the safety is ensured, the operation efficiency is improved significantly, and locking fixation can be achieved fast.

The invention discloses a life escape device of a rail vehicle, the rail vehicle with the life escape device, and a rail traffic system. The life escape device comprises a body and a plurality of telescopic pedals, wherein a plurality of pedals arranged at intervals in the length direction of the body are arranged on the body, and form a passage used for life escape; the telescopic pedals are connected onto one end of the body in the length direction, and can move between an extension position and a contraction position in the length direction of the body; the plurality of telescopic pedals are distributed in the width direction of the body; when the telescopic pedal is positioned in the extension position, multi-stage steps are suitable for be constructed with the plurality of pedals. Thelife escape device has the advantages that the plurality of telescopic pedals distributed in the width direction are arranged at one end of the body, the telescopic pedals can extend into a life escape passage formed in the rail; the passengers enter the life escape passages through the telescopic pedals; convenience is provided for the passengers to escape; the telescopic pedals extend into thelife escape passage, so that the matching stability of the life escape device and the rail can be improved; the safe life escape of the passengers can be ensured.

The invention provides a thread trimming mechanism of a sewing machine and belongs to the technical field of machines. The problem that the cooperative stability of an existing tread trimming mechanism of the sewing machine is poor is solved. The thread trimming mechanism of the sewing machine comprises a thread trimming knife, a swing rod driving piece, a swing rod and a thread trimming cam, wherein the swing rod is hinged to the sewing machine, and the thread trimming cam can rotate. The swing rod is located between the thread trimming cam and the swing rod driving piece, a transmission structure is arranged between the swing rod and the thread trimming knife, and the transmission structure can drive the thread trimming knife to swing and trim thread when the swing rod swings. The thread trimming cam is in a sleeve shape or in a columnar shape, a cam surface is arranged at one end of the thread trimming cam, the swing rod abuts against the cam surface, and when the thread trimming cam rotates, the swing rod can swing around the hinged point under the action of the cam surface.