63results about How to "Restricted disengagement" patented technology

A capacity varying type rotary compressor comprises a casing (100) that maintains a discharge pressure state; a motor (200) installed in the casing (100) and generating a driving force; one or more cylinder assembly (300,400) fixed in the casing (100) and compressing a refirgerant by a rolling piston (340,430) and a vane (350,440), the rolling piston (340,430) eccentrically coupled to a rotation shaft (230) of the motor (200) and performing a linear motion; and a vane restricting unit (500) for restricting the vane (440) separated from the rolling piston (430) or releasing the vane (440) thereby contacting to the rolling piston (430) according to a difference of pressures applied to the vane (440). In the rotary compressor, an entire structure is simplified thereby to minimize precessing assemblies, resulting in reducing aproduction cost and enhancing a productivity. Furthermore, as the vane (440) is restricted by using a pressure difference of the system, a relibility is enhanced. Especially, in case of using a stopper (550), the reliability of the product can be more enhanced.

The invention discloses a lamp manufacturing and punching device. The lamp manufacturing and punching device comprises a flat plate and bolts, wherein supporting legs are fixedly connected to the twosides of the bottom of the flat plate; sliding grooves are formed in the two sides of the top of the flat plate; sliding blocks are in sliding connection with inner cavities of the sliding grooves; the tops of the sliding blocks extend to the outer parts of the sliding grooves and are fixedly connected with a moving table; transverse grooves are formed in the two sides of the top of the moving table; and first threaded rods are movably connected to the inner walls of the transverse grooves. The lamp manufacturing and punching device has the beneficial effects that the longitudinal position ofa lamp panel can be adjusted, the transverse position of a drill rod can be adjusted, the drilling flexibility is improved, and chippings generated in the drilling process are shielded; and the problems that after an existing lamp panel drilling device fixes the lamp panel, the position of the lamp panel cannot be adjusted, the position of the drill rod cannot be conveniently adjusted, the drilling flexibility is reduced, the chippings cannot be shielded in the drilling process, the chippings are likely to fly to the periphery, and injuries are likely to be brought to operators are solved.

A climbing mechanism used for a comprehensive pipeline routing inspection robot comprises a main walking mechanism and an auxiliary walking mechanism. The main walking mechanism comprises a main platform, a connecting frame and a walking frame which are sequentially and fixedly connected from top to bottom, the walking frame is of an annular structure, a semicircular arc-shaped frame I is arrangedabove the walking frame, a quadrant arc-shaped frame II is arranged below the walking frame, a walking wheel driven by a motor is installed on the inner side of the arc-shaped frame I, and two parallel auxiliary wheels are installed on the inner side of the arc-shaped frame II. The auxiliary walking mechanism comprises two pipe clamping mechanisms. The climbing mechanism can be separated from a track and depend on a pipeline to walk autonomously, and a structural support is provided for the comprehensive pipeline routing inspection robot.

The invention provides a connector, wherein the miniaturization requirement of the connector is met based on the anti-falling structure of a sliding part. The sliding part is arranged on a shell and is movable between a backward position and a forward position. The sliding part is composed of a plate-like sliding part main body capable of sliding along the outer surface of an arm main body. The sliding part main body is provided with an outer clamping portion configured to abut against an outer clamping and supporting portion in the tabling direction when the sliding part is at the backward position, so as to limit the sliding part and prevent the sliding part from disengaging from a locking arm backwards, wherein the outer clamping and supporting portion is arranged on the outside of the rear end portion of the arm main body in the width direction. The sliding part main body is also provided with an inner clamping portion. The inner clamping portion is composed of a part positioned on the inner side of the inner clamping portion in the width direction and arranged forwards than the outer clamping portion, and is capable of being abutted against an inner clamping and supporting portion in the thickness direction during movement so as to limit the sliding part and prevent the sliding part from disengaging towards the outer side of the locking arm along the thickness direction, wherein the inner clamping and supporting portion is formed on the inner side of the arm main body in the width direction.

The invention provides an endoscope tip and an endoscope. The endoscope tip comprises a mounting base, and a camera assembly and an illumination assembly which are arranged on the mounting base; the mounting base is provided with a lens mounting hole, an instrument channel, a chip mounting groove and an illumination mounting groove; the lens mounting hole and the instrument channel are arranged along a Z direction; the lens mounting hole and the chip mounting groove are arranged in the Y direction and communicate with each other the lens mounting hole is aligned with the center of the chip mounting groove; the illumination mounting groove is formed in one side of the lens mounting hole, and the illumination assembly is arranged in the illumination mounting groove; the camera assembly comprises a lens and an image signal transmission unit; the lens is arranged in the lens mounting hole, the image signal transmission unit is arranged in the chip mounting groove, and the lens is connectedwith the image signal transmission unit; and the endoscope comprises an operating handle, an insertion tube and the endoscope tip, wherein the insertion tube is connected between the operating handleand the endoscope tip. The endoscope tip and the endoscope have the advantages of simple and convenient assembly and no need of repeatedly adjusting the position of the lens.

The invention relates to the technical field of batteries, and provides a battery cover plate assembly, a preparation method thereof and a preparation method of an electrode terminal. The preparationmethod of the electrode terminal comprises the following steps: providing a flat plate; placing the flat plate on a supporting piece with a recess; and punching flat plate to form an electrode terminal having a recess. The electrode terminal can be obtained by stamping the flat plate placed on the supporting piece, the whole preparation process is efficient and simple, and the quality of the electrode terminal can be guaranteed.

The invention discloses a press type blood collection needle device which comprises a shell, a sliding sleeve and a needle body. A needle head is arranged at the front end of the needle body. A first guide limiting channel where the sliding sleeve axially moves is arranged in an inner cavity of the shell and enables the front end of the sliding sleeve to stretch out of the shell. A second guide limiting channel where the needle body axially moves is arranged in the sliding sleeve and enables the needle head to stretch out of the front end of the sliding sleeve. The needle body is provided with an elastic expanding arm which expands towards the front end of the inner cavity of the shell. The rear wall of the sliding sleeve is provided with a notch groove used for limiting the end of the elastic expanding arm during assembling. A disengagement rod which is used for enabling the elastic expanding arm on the needle body to be disengaged from the notch groove and to enter the second guide limiting channel when the front end of the sliding sleeve retracts into the shell is arranged in the shell. A spring used for pushing the needle body to move forwards so as to enable the needle head to pierce out of the shell from the front end of the sliding sleeve is arranged between the needle body and the bottom of the inner cavity of the shell. The press type blood collection needle device is simple in structure, easy to obtain, convenient to assemble and safe to use, and is provided with a small number of components.

The invention discloses a card seat, a card insertion device, and a mobile terminal. The card seat is used for the sliding fit with a card holder, and the card holder is sequentially provided with a first card slot and a second card slot in a sliding direction. The first card slot is used for accommodating a storage card, and the second card slot is used for accommodating an intelligent card. Thecard seat is provided with a slot, and the slot is provided with an opening. The slot is also provided with a top surface and a bottom surface opposite to the top surface. The top surface is providedwith two first bosses, and the two bosses are arranged at an interval. The opened end of the first card slot and the opened end of the second card slot face the top surface. When the card holder is inserted into the slot, the tops of the two bosses are used for pressing the edge of the intelligent card. The interval is used for allowing a storage card to pass, thereby guaranteeing that the storagecard and the intelligent card can be successfully inserted into the slot, and improving the stability of the card insertion device.

The invention discloses a fireproof bus duct, and relates to the field of bus ducts, and the fireproof bus duct comprises a busbar, an upper cover plate, a lower cover plate and two side plates, and the lower cover plate is provided with a plurality of groups of protection assemblies at intervals along the length direction of the lower cover plate. The protection assembly comprises a mounting plate arranged on the outer side wall of the lower cover plate and two protection plates tightly attached to the outer side walls of the two side plates respectively, the two protection plates are hinged to the two sides of the mounting plate respectively, and supporting pieces used for limiting overturning of the protection plates are arranged on the two sides of the lower end face of the mounting plate. When a fire disaster occurs, the lower cover plate and the side plate can be protected by the mounting plate and the protection plate, so that the influence of the fire disaster on the bus duct is reduced, and the normal use of the bus duct is ensured; in addition, the mounting plate and the protection plate can reduce damage to the bus duct caused by accidental collision of external objects, and the service life of the bus duct is prolonged.

The invention relates to the field of construction engineering, in particular to a prefabricated building balcony. The prefabricated building balcony comprises a pedal, wherein a fence is arranged above the pedal, the fence is detachably connected with a wall through a limiting assembly, and a support frame which is used for supporting the pedal is arranged below the pedal. The prefabricated building balcony has the effect of effectively improving the balcony construction efficiency.

The invention discloses a retaining rivet and an antenna. According to the technical scheme of the retaining rivet, the retaining rivet is characterized by comprising a pin and a pin bush, wherein a pin hole capable of allowing the pin to penetrate therethrough is formed in the pin bush, the outer wall of one end of the pin bush protrudes to form an extending part, the other end of the pin bush can be elastically folded outwards and the extending part jointly form a tensioning part with a clamping effect, the inner wall of the tensioning part protrudes to form a retaining part capable of enabling the tensioning part to be folded outwards when the pin is inserted into the pin hole, and the outer side wall of the pin is provided with a locking part matched with the retaining part in a clamped mode so as to prevent the pin from retreating from the pin hole. When the pin is inserted into the pin hole, the pin interacts with the retaining part, so that the tensioning part is folded outwards, the locking part on the outer wall of the pin and the retaining part on the pin bush form the clamping effect, and the retaining part and the locking part are kept in a clamping state through the interaction force of the tensioning part and a plate and the elastic recovery force of the tensioning part, so that the pin is prevented from being separated from the pin bush, and the stability of therivet fixing effect is improved.

The invention discloses a climbing belt type climbing safety facility for a tower crane, and belongs to the technical field of construction machines. The climbing belt type climbing safety facility comprises a climbing belt, climbing belt retaining frames and a climbing claw restraint device, wherein the climbing belt maintaining frames are arranged at the two ends of a jacking cross beam of the tower crane and the positions, close to supporting climbing claws, of the two sides of a climbing joint of the tower crane; the climbing belt penetrates through the climbing belt retaining frames, theclimbing belt retaining frames slide along the climbing belt in the climbing process of the tower crane, and it is ensured that the climbing belt and rotating support shafts of the climbing claws havea relatively fixed horizontal distance; and the climbing claw restraint device is arranged on the climbing belt, and the climbing claws are restrained on climbing belt steps. According to the climbing belt type climbing safety facility, it can be guaranteed that the climbing claw steps can be accurately treaded onto the climbing belt steps every time, and the climbing claws are prevented from disengaging from the climbing belt steps during working; and when a hydraulic cylinder of a tower crane hydraulic system is in misoperation, a blocking effect is generated on the movement of the hydraulic cylinder, and the potential safety hazard of the climbing belt type tower crane in the climbing process is solved.

The invention discloses a construction waste recycled aggregate treatment device. The device comprises a base, a crusher, an iron remover and a vibrating screen are sequentially arranged on the upper end face of the base in the length direction of the base, a conveying belt used for conveying materials is arranged between the crusher and the vibrating screen, a conveying belt is also arranged at the position, on the side, deviating from the iron remover, of the crusher, on the base, a spraying frame is installed at the position, on the side, away from the iron remover, of the crusher, on the base, a water storage tank is installed on the upper end face of the spraying frame, a spraying pipe is connected to the inner side wall of the spraying frame in the circumferential direction, multiple spraying heads are connected to the outer side wall of the spraying pipe at intervals in the length direction of the spraying pipe, a connecting pipe is connected between the water storage tank and the spraying pipe, a connecting hole allowing the connecting pipe to be inserted is formed in the bottom wall of the water storage tank, and a sealing assembly used for controlling opening and closing of the connecting hole is installed in the water storage tank. When construction waste passes through the spraying frame, water is sprayed out from the spraying heads, so that the surface of the construction waste is wet, and therefore dust generated during crushing is less, and the construction environment is kept clean and tidy.

The invention discloses an engine assembly rack, which comprises a frame and further comprises at least one quick-change module detachably connected with the frame; and the quick-change module is provided with a first supporting module and a second supporting module, and the second supporting module comprises a supporting block used for supporting an engine assembly and an adjusting part used for adjusting the height of a supporting block. An existing engine assembly rack is generally and directly welded on a cross beam, so that the position and the height of the existing engine assembly rack are fixed, and the existing engine assembly rack can only be applied to single engine models and is poor in overall flexibility and practicability. According to the rack provided by the invention, the quick-change module is quickly replaced only through a screw connection mode, the universality of the frame can be realized, the rack is used for storing different engine models, and when the rack is used, only the corresponding supporting blocks of the engine assembly needing to be stored need to be designed in advance, and then the quick-change module is replaced according to actual requirements, so that the overall flexibility is extremely high, and the universality and the practicability are relatively high.

The invention relates to a suspended ceiling component and a mounting method of the suspended ceiling component, and the suspended ceiling component comprises a suspended ceiling component which is characterized by comprising a suspender, a keel assembly, a connecting piece and a decorative plate; the keel assembly can be fixed to a ceiling through the suspender. A plurality of clamping parts are arranged on the keel assembly at intervals in the length direction of the keel assembly, and each clamping part comprises a clamping hole and a clamping groove which communicate with each other; the connecting piece comprises a connecting part and a clamping piece, the connecting part is used for being connected with the decorative plate, the clamping piece protrudes out of the surface of the connecting piece, the clamping piece can penetrate through the clamping hole and slide to the clamping groove, and the clamping groove can limit the clamping piece to be separated from the clamping part. The installation operation of the suspended ceiling component can be simplified, the technical requirement for operators is lowered, meanwhile, the site construction environment is purified, construction waste is reduced, and economical efficiency is improved.

The invention discloses a conveniently-disassembled / assembled bed frame and solves the technical problem of disassembly / assembly inconvenience caused by disassembling / assembling the existing bed frame by virtue of a tool. The technical scheme for solving the technical problem lies in that the conveniently-disassembled / assembled bed frame mainly comprises a first bed frame and a second bed frame; the first bed frame is provided with a first connecting end; the second bed frame is provided with a second connecting end; the first connecting end is detachably connected with the second connecting end by a connecting assembly; and the connecting assembly comprises a first connecting plate, a second connecting plate, a third connecting plate and a fixed pin, the first connecting plate is fixedly arranged at the first connecting end, the second connecting plate is fixedly arranged at the second connecting end, the third connecting plate is fixedly arranged at the lower end of the first connecting plate, a first pin hole is formed in the first connecting end, a second pin hole is formed in the second connecting plate, the first connecting end is connected with the second connecting plate by the fixed pin penetrating into the first pin hole and the second pin hole, a locating hole is formed in the third connecting plate, and the lower end of the second connecting plate is provided with a bulge which is inserted into the locating hole to lock the first bed frame and the second bed frame.

The invention relates to the field of air conditioning equipment, in particular to a water cold storage system for central air conditioning. The water cold storage system for central air conditioningcomprises a cooling tower, and a lifting mechanism and a rotating mechanism arranged on a cover body cooling tower which covers a cooling tower. The lifting mechanism is used for driving a cover bodyto slide in a vertical direction and the rotating mechanism is used for driving the cover body to rotate; the lifting mechanism comprises a mounting block, a lifting rod, a lead screw and a first driving part, the mounting block comprises a carrying part, a connecting part and a guiding part, the guiding part is located above the carrying part, the lower surface of the connecting part is fixedly connected to the upper surface of the carrying part, and the upper surface of the connecting part is fixedly connected to the lower surface of the guiding part; the lifting rod is arranged in the guiding part in a penetrating manner, and is matched with the guiding part in a sliding manner; the bottom end of the lead screw is rotatably connected to the carrying part, the top end of the lead screw is in threaded fit with the bottom end of the lifting rod, and a first driving part is mounted on the carrying part and is used for driving the lead screw to rotate. The water cold storage system is convenient for staff to repair an interior of the cooling tower.

In a webbing take-up device, a housing chamber is provided integrally at an axial-direction end portion of the spool, and opens to an outer-side in a radial-direction of the spool. A lock plate is housed in the housing chamber, and a side surface of the housing chamber is engaged with the lock plate at a predetermined occasion, and rotation of the spool in a drawing-out direction is regulated. An opening-side end portion of the side surface is arranged at a position away from a slit in a circumferential-direction of the spool. Thus, a wall part passing the side surface and being along the axial-direction becomes larger, so strength of the spool can be enhanced. Further, an outer-side of the housing chamber in the axial-direction is closed, so strength of the housing chamber can be enhanced, with the result that the strength of the spool can be further enhanced.

The invention provides a card inserting device and electronic equipment. The card inserting device comprises a housing, a card tray and a locking member, wherein the card tray is slidably connected tothe housing; the housing is provided with an inserting hole and a sliding groove which are arranged side by side; the card tray comprises a door panel which covers the inserting hole; the side, close to the sliding groove, of the door panel is provided with a limiting part; the locking member comprises a sliding part and a clamping part which is fixedly connected to the sliding part; the slidingpart is slidably connected to the sliding groove; the sliding direction of the sliding part is perpendicular to the orientation of the inserting hole; the clamping part slides towards the direction close to the door panel along with the sliding part until being jointed with the limiting part so as to prevent the door panel from being disengaged from the inserting hole. According to the card inserting device, the locking member is arranged on the housing, the door panel is locked or unlocked by sliding the locking member, and the locking member does not occupy the internal space of the housing.

The invention relates to a power supply fixing box. The power supply fixing box comprises a box cover and a box bottom, and the power supply fixing box further comprises a PCB board arranged between the box bottom and the box cover, wherein an input end and an output end are arranged on the left side and the right side of the PCB board respectively; an output guide groove is formed in the position, corresponding to the output end, of the box cover; positioning ribs and positioning buckles are arranged on the positions, corresponding to the edge of the box cover, of the box bottom; a PCB grooveis formed in the middle of the box bottom; an input end wire groove is formed in the position, corresponding to the input end, of one side of the box bottom, and an output end wire groove is formed in the position, corresponding to the output end, of the other side of the box bottom; two positioning columns are arranged on the input end wire groove; an inwards-concave wire groove is formed in theoutput end wire groove; a plurality of L-shaped supporting plates are arranged on the PCB groove; an input port is formed in the position, corresponding to the position between the two positioning columns, of the side wall of the input end wire groove; the input port and the two positioning columns are H-shaped; and the input port enables an input wire of the input end to be connected with the PCB board and to penetrate through the power supply fixing box. The power supply fixing box is compact in structure, free of wire breakage, low in cost, smooth in wire body passing and convenient and rapid to install and fix.

The invention discloses a temporary wire clamping hook installation tool and method. The diameter difference between a hexagonal prism and a lead screw on a temporary wire clamping hook fastening rod is utilized, a 7-shaped opening fork is arranged, and the hexagonal prism is limited to be separated from a fastening sleeve. When the hexagonal prism on the fastening rod moves towards the interior of the sleeve, outward thrust is generated on the movable tongue, the movable tongue pushes the force arm of the 7-shaped opening fork under the action of the connecting rod, the force arm drives the opening fork to leave the opening of the fastening sleeve, limitation on the hexagonal prism on the fastening rod is eliminated, the force arm of the 7-shaped opening fork enables the opening of the fastening sleeve to be in an open state all the time under the action of the ejector block, so the hexagonal prism of the fastening rod of the temporary wire clamping hook can be separated conveniently.

A climbing belt type climbing safety device for a tower crane belongs to the technical field of construction machinery. It includes a climbing belt, a climbing belt cage and a climbing claw restraint device. The climbing belt cage is arranged at the two ends of the tower crane jacking beam and the two sides of the tower crane climbing section near the supporting climbing claws. The climbing belt passes through the climbing belt and is kept During the climbing process of the tower crane, the climbing belt cage slides along the climbing belt to ensure that the climbing belt and the climbing claw rotation support shaft have a relatively fixed horizontal distance; Climb on the steps. The invention can ensure that the climbing claws can step on the treads of the climbing belt accurately every time, and can also prevent the crawling claws from detaching from the treads of the climbing belt during work; moreover, when the hydraulic cylinder of the hydraulic system of the tower crane is misoperated , to block the movement of the hydraulic cylinder, which solves the safety hazards in the climbing process of the climbing belt tower crane.

The invention provides a door and window frame assembly, a building wall and a building body, and relates to the technical field of buildings. The door and window frame assembly comprises a frame component used for forming a door frame or window frame, the frame component comprises a top frame, a bottom frame and at least one side frame which are connected, a first inserting structure is arrangedon the outer side face of the side frame, the outer side face of the top frame and / or the outer side face of the bottom frame are / is provided with second inserting structures, the second inserting structure of the bottom frame is used for being in inserted fit with a preset bottom table plate, and a first limiting part is arranged on the outer side face of the side frame. According to the technical scheme, the first limiting part on the outer side face of the side frame can be connected with a preset end wall protection plate in a limited connection manner, the end wall protection plate can belimited from being separated from the side frame, and it is ensured that after the side frame and the end wall protection plate are in inserted assembly through the first inserting structure, the first limiting part can be used for ensuring the assembly stability.

The invention discloses a wire winding structure and a clothes hanger hand cranking device. The wire winding structure comprises a wire winding wheel and a steel wire rope, wherein an accommodating groove with an outward opening is formed in the peripheral wall of the wire winding wheel, and a guide groove communicating with the accommodating groove is formed in the side wall of the wire winding wheel; the steel wire rope enters the accommodating groove in the depth direction of the guide groove, and one end of the steel wire rope is rotationally connected with the wire winding wheel; a limiting structure is further arranged on the wire winding wheel and is used for limiting the steel wire rope from being disengaged from the wire winding wheel from the guide groove; and when the wire winding wheel rotates, the wire winding wheel is released or rolled. According to the winding structure and the clothes hanger hand cranking device, the service life of the steel wire rope can be prolonged, winding of the steel wire rope is smoother and more natural, and the use experience of a user is good.