62results about How to "Achieve retraction" patented technology

The invention belongs to the technical field of shopping trolley lock equipment, and particularly provides an intelligent supermarket shopping trolley lock and a control system thereof. The lock mainly comprises an electronic lock shell, a shopping trolley lock two-dimensional code, a display screen, a chain lock insertion hole, a control chip, an insertion head, a chain, a mobile phone supermarket shopping APP and the like; information transmission between the mobile phone supermarket shopping APP and the control chip are achieved through wireless connection, so that the opening and closing of the shopping trolley lock can be controlled; and the intelligent supermarket shopping trolley lock controlled by using the mobile phone supermarket shopping APP comprises a code scanning verification module, a verification success unlocking shopping trolley module, a shopping completed locking shopping trolley module and a supermarket shopping credit record and a value-added service module. Theintelligent supermarket shopping trolley lock and the control system thereof have the advantages that the lock body is reasonable in structure, the principle is reliable, it is convenient and fast that the shopping trolley can be unlocked through the mobile phone APP, and the mobile phone supermarket shopping APP is provided with the functions of providing a series of services such as a supermarket map, goods positions, supermarket discounted goods, supermarket free shuttle bus situations and the like, thereby greatly satisfying the shopping needs of customers.

The invention discloses an end-control type internal expansion type mechanical locking hydraulic oil cylinder and an operation method thereof. The oil cylinder comprises a cylinder barrel and a piston rod, and three blind oil passages which are independent from one another and provided with sealed tail portions are formed in the piston rod; three oil guide rods are arranged on a left end cover, and the three oil guide rods are arranged in corresponding blind oil passages respectively; a spiral pipe sleeve is limited and clamped between a left end cover piston and a right end cover piston; a spiral groove cavity is formed in the outer circumference of the spiral pipe sleeve; a first radial oil passage makes the spiral groove cavity communicated with the first oil guide rod, and a second radial oil passage makes the spiral groove cavity communicated with the second oil guide rod. Under the drive of only two inlet and outlet oil passages, early mechanical unlocking of the hydraulic oil cylinder and subsequent telescopic movements of a piston and the piston rod assembly can be achieved; mechanical self-locking of the hydraulic oil cylinder can be achieved under the condition that a driving oil passage is cut off, and the position locking precision can be guaranteed under the effect of long-term loading.

The invention discloses a power device for a bladder activity auxiliary device. The power device comprises a storage cavity and a power pump, the storage cavity is used for storing highly-compressed power gas, the power pump is arranged in the storage cavity, a circulation opening is formed in the wall of the storage cavity, connected to an external air bag through a guide pipe and communicated with the air bag each other, straining signals inputted by the outside of the power pump drives power gas to be injected into the air bag, so that the air bag is expanded towards a detrusor to extrude and contract the detrusor, the storage cavity comprises an elastic air storage bag, one surface of the elastic air storage bag wraps the outer wall of a bladder, and the circulation opening is an opening of the air storage bag. According to the power device for the bladder activity auxiliary device, the storage cavity is set into a contracted air storage bag, the volume of the storage cavity is effectively and uniformly dispersed onto the outer wall of the bladder by the air storage bag, excessive space of a pelvic cavity cannot be occupied, and the power device is effectively applicable to auxiliary contraction of the bladder detrusor.

The invention relates to the field of cable connectors, in particular to a cable connector protection structure which comprises a pressure transmission device, a shell and a telescopic connector, moving holes are formed in the left side and the right side of the shell, indicator lamps are arranged in the moving holes, a sealing pipe is installed on the pressure transmission device, a pressing block is arranged at the top end of the sealing pipe, and a telescopic block is arranged on the side face of the sealing pipe. The top of the telescopic joint is provided with a connecting plug, the frontend face of the connecting plug is provided with a plug hole, the rear end face of the connecting plug is provided with a connecting shaft, twenty-five conduits are installed on the connecting shaftin a circumferential array mode, the tail ends of the conduits are provided with a connecting table,two parallel pipes are symmetrically mounted on the left side and the right side of the bottom of each indicator lamps,a fixed table is arranged outside the connecting table, and twenty-five connecting holes are formed in the fixed table in a circumferential array mode; and the protection structureof the cable connector has the beneficial effects that the protection structure of the cable connector optimizes the structure of a traditional cable connector, so that the cable connector has a protection function.

The invention provides a pop-up camera module and a terminal, and relates to the technical field of terminals. The pop-up camera module comprises a module shell, a camera shell, n coils, a first magnet and a second magnet, wherein n is an integer greater than 1; a pop-up hole of the camera shooting shell is formed in the module shell, and a camera is arranged in the upper portion of the camera shooting shell. The n coils are arranged in parallel and axially surround the outer wall below the camera shell; the first magnet and the second magnet are arranged in the module shell, and the n coils are located between the first magnet and the second magnet. Compared with the relevant art, the pop-up camera module provided by the embodiment of the invention has the advantages that pop-up and retraction are realized by using mechanical devices such as the motor, the gear set and the lead screw, so that the structural complexity of the pop-up camera module is reduced, and occupied space is saved.

The invention discloses an automatic seal machine. The automatic seal machine comprises a machine core and a machine frame; the machine core is suspended on a sliding shaft of the machine frame through a linear bearing; a machine core power assembly and a seal box are arranged on the machine core; a seal rotary table module is arranged in the seal box; a seal pressing window is arranged on the seal box; the seal rotary table module comprises a seal pressing assembly for seal pressing; the machine core power assembly comprises a displacement driving part for driving the machine core to move along the sliding shaft, a seal pressing driving part driving the seal pressing assembly to act and a seal changing driving part for driving the seal rotary table module to rotate. According to the automatic seal machine provided by the invention, consecutive steal use actions such as seal selection, oil filling of an ink pad and sealing completion by use of seals can be realized continuously; in the whole seal use process, the actions can be completed by closing the seals in the seal box, potential safety hazards during seal management are better solved, closed management of the seal use process can be realized, modern office requirements are met greatly, and an excellent marketable value is provided.

The invention provides a car coupler automatic control system. The car coupler automatic control system comprises a main air pipe and an uncoupling pipeline; the main air pipe is divided into two paths; the first path comprises a first limiting switch connected with the main air pipe and a second limiting switch connected with the first limiting switch and communicated to a contact of a two-position five-way pneumatic control valve; the other path is communicated with an air inlet of the two-position five-way pneumatic control valve; the uncoupling pipeline is connected with a uncoupling cylinder; and a working port of the two-position five-way pneumatic control valve is connected with the pushing cylinder. According to the coupler automatic control system, under the single-coupler state, stretching out of the electrical coupler can be achieved through triggering of the first limiting switch, and retracting of the electrical coupler can be achieved through triggering of the second limiting switch.

The invention discloses a pen for correcting sitting postures for students. The pen comprises a pen holder, a pen refill and a correcting component; and the pen refill is placed in the pen holder, andthe pen holder is fixedly connected with the correcting component. The correcting component comprises a shell, an infrared receiving tube, an infrared transmitting tube, a controller, an electromagnet, a rotating blocking piece and a battery; the infrared receiving tube, the infrared transmitting tube and the electromagnet are electrically connected to the controller; the rotating blocking pieceis rotated by the electromagnet; and the battery supplies power to the controller and the magnet. The pen for correcting the sitting postures for the students can be used for correcting the sitting postures of the students, and reduces myopia problems caused by incorrect sitting postures.

The invention discloses an absorbent article and a manufacturing method thereof. The absorbent article is provided with an elastic outer coating layer and interior decoration; the elastic outer coating layer comprises a first stretchable sheet and a second stretchable sheet which are overlapped in an up and down mode and an elastic adhesive which is coated between the two sheets and at least extends in the longitudinal direction. The manufacturing method of the absorbent article comprises the steps that the outer coating layer is formed by applying the elastic adhesive between the first sheet and the second sheet and at least in the longitudinal direction, and the interior decoration and the outer coating layer are composited. According to the absorbent article and the manufacturing method thereof, by means of adhesion of the elastic adhesive at high temperature and an elastic stretching property at room temperature, bonding of the first sheet and the second sheet is achieved, no additional elastic material is needed between the first sheet and the second sheet, retraction of the two sheets can be achieved, a rubber band adding device and a steering device are omitted, therefore, the structure is simple, and the cost is reduced.

The invention provides a variable-diameter back reaming device and a process method. According to the variable-diameter back reaming device, a central rod is connected with a body by a spline pair, through holes are formed in the body, a bearing end cover is arranged on the upper part of the body, the middle part of the body is of a three-ledge or four-ledge structure, two oil injection holes are symmetrically formed above the ledges and an oil injection plug head is installed, and a cutting block is arranged on each ledge; and a balance piston rod, a balance piston, a spring and a bevel barrel are installed in an annular space of the central rod and the body, the balance piston rod is connected with the central rod through a thread, the balance piston is installed in an annular space of the balance piston rod and the body, and the spring is installed between the balance piston rod and the central rod. The variable-diameter back reaming device and the process method provided by the invention are used for safe drilling and completion for complex formations.

The invention discloses a communication engineering cable bridge with stable performance, include support rods, both sides of the bottom of the support bar are fixedly connected with vertical plates,A shell is fixedly connected at the bottom between the vertical plates on both sides, A mount cavity is arranged in the middle of the opposite side of the vertical plates on both sides, A fixing rod is vertically fixedly connected with the mounting cavity, the upper end and the lower end of the sliding sleeve are both sleeved with a first spring on the fixed rod, one side of the sliding sleeve isfixedly connected with a connecting rod, one end of the connecting rod away from the sliding sleeve extends to the outside of the mounting cavity and is fixedly connected with the bridge frame body, The bottom of the first cushion block is fixedly connected with a first movable rod, and the lower end of the first movable rod penetrates into the interior of the shell and is connected with a secondcushion block, so that the stability performance of the support is good, and the shock absorbing effect is guaranteed and the stability performance of the support is strengthened.

The invention discloses a deep hole automatic boring head and belongs to the field of machining. The deep hole automatic boring head is a machining tool of a deep hole and the inner surface of a steel pipe. According to the boring head, a main shaft is used as a foundation, the front end is a boring part, and the back end is a rolling part. A front end knife base and an advance-retreat knife cone block are connected integrally in a hooking mode to be embedded into the main shaft. The advance-retreat knife cone block has concentric reducer taper, so that an advance-retreat knife device which can achieve retreating knife stretching and advancing knife storing is formed. An advance-retreat knife pulling rod penetrates through the middle portion. Through alternating effects of compressed air and a backspring, a retreating knife cone block is driven to slide front and back, and automatic knife stretching and storing are achieved. The position of the retreating knife cone block is defined by the position of a knife adjusting nut, and the rotating machining diameter of a knife is determined. Accordingly, the knife adjusting nut, a locking nut, the advance-retreat knife pulling rod and the advance-retreat knife cone knife block form a precision knife adjusting device. The back end main shaft is connected with a rolling knife formed by a rolling adjusting nut, a supporting sleeve, a pressure bearing, a roller way retaining device, a pin roller and the like in a sleeved mode. The deep hole automatic boring head for front boring and back rolling is formed.

The invention provides a hydraulic energy-saving system. The hydraulic energy-saving system comprises a stretching and contracting oil cylinder and a main valve and furthermore comprises an oil supplementary valve; the stretching and contracting oil cylinder is a single-piston-rod oil cylinder; the main valve is connected with the stretching and contracting oil cylinder, the main valve comprises a work oil opening A, a work oil opening B, an oil inlet P connected with a hydraulic oil source and an oil return opening T connected with an oil tank; the work oil opening A is connected with a rodless cavity oil opening of the stretching and contracting oil cylinder (6), the work oil opening B is connected with a rod cavity oil opening of the stretching and contracting oil cylinder, the oil supplementary valve is connected between the hydraulic oil tank and the rod cavity oil opening of the stretching and contracting oil cylinder, and one-way communication from the hydraulic oil tank to a rod cavity of the stretching and contracting oil cylinder is achieved; and the main valve comprises an A-opening oil feeding throttling slot, an A-opening oil return throttling slot, a B-opening oil feeding throttling slot and a B-opening oil return throttling slot, and the B-opening oil feeding throttling slot comprises a throttling segment and an interception segment. The invention furthermore provides a reach stacker. According to the hydraulic energy-saving system provided by the invention, retraction of an arm frame is achieved through the gravitational potential energy of a stretching and contracting arm, and system energy consumption is lowered.

The invention relates to a pneumatic-type body-building massage instrument. The pneumatic-type body-building massage instrument comprises an air cylinder, a steel wire and a massage device; two pistons are slidably arranged inside the air cylinder; the end parts, close to each other, of the two pistons are connected through a spring; the sidewall of the air cylinder is connected with the massage device through an air pipe; the massage device is provided with expandable and retractable air bubbles; one end of the steel wire is connected to the pistons; the other end of the steel wire extends to the outer side of the air cylinder and is connected with a handle; and when the pistons are driven by the handle to move towards the direction where the spring is tensioned, the pistons can compress the air inside the air cylinder into the air bubbles through the air pipe so that the air bubbles can be expanded to stimulate corresponding acupuncture points. The pneumatic-type body-building massage instrument provided by the invention has the beneficial effects that the pistons can be pulled by the handle to realize physical body building, the air bubbles can be expanded and retracted continuously to stimulate the acupuncture points of a human body so as to realize a massaging effect, body-building is realized, and the human body can be massaged as well, so the body-building effect is improved.

The invention discloses a hydraulic system for hinging of a shield tunneling machine. The system comprises a hydraulic oil tank, a hydraulic pump and a hinge oil cylinder. An oil inlet of the hydraulic pump is connected with the hydraulic oil tank, wherein an oil outlet of the hydraulic pump is connected with a port P of a first electromagnetic valve through a pipeline; a port T of the first electromagnetic valve is connected with the hydraulic oil tank through a pipeline; a port A of the first electromagnetic valve is connected with a port A1 of a hydraulic lock through a pipeline; a port B of the first electromagnetic valve is connected with a port B1 of the hydraulic lock through a pipeline; a port A2 of the hydraulic lock is connected with a rodless cavity of the hinge oil cylinder through a pipeline; a port B2 of the hydraulic lock is connected with a rod cavity of the hinge oil cylinder through a pipeline; a floating loop and a backpressure loop are arranged between the hinge oilcylinder and the hydraulic oil tank in parallel and connected through a pipeline; an unloading loop is arranged between the hydraulic lock and the hydraulic oil tank and connected through a pipeline;and a locking loop is arranged between the hydraulic pump and the hydraulic oil tank and connected through a pipeline. The shield tunneling machine hinge hydraulic system is mainly applied to a shield tunneling machine hinge device, and the functions of stretching, retracting, deflecting, following, locking and the like of the hinge device can be achieved.

A disc brake lock comprises a lock body, an outer fastening piece, an inner fastening piece, a gasket, socket head cap screws, and hexagonal socket set screws. The disc brake lock is characterized in that the outer fastening piece and the inner fastening piece are fixed to a frame via the socket head cap screws; the gasket is arranged among the outer fastening piece, the inner fastening piece and the frame; the lock body is installed on the outer fastening piece and the inner fastening piece by being connected with T-shaped grooves of the outer fastening piece and the inner fastening piece, and is located via the hexagonal socket set screws. The lock body comprises a lock shell, a keyhole and a lock pillar, wherein the keyhole is formed in the outer end face of the lock shell and the lock pillar is located in the lock shell. The lock pillar can be made to extend out or retreat back by rotating a key, so that the disc brake lock can be locked or unlocked.

A two-stage oil cylinder solves the problems that according to an existing multi-stage telescopic cylinder, pistons of all stages can only stretch out and retract step by step, the requirement for independent action of the pistons of all stages cannot be met, and applicability is poor. The two-stage oil cylinder comprises an outer cylinder body with one end provided with an outer cylinder bottom, and is characterized in that a first-stage inner cylinder body is movably inserted into an opening in the other end of the outer cylinder body, an inner cylinder bottom is arranged at the end, located in the outer cylinder body, of the first-stage inner cylinder body, and a second-stage plunger is movably inserted into an opening in the other end of the first-stage inner cylinder body; a piston is arranged at the end, located in the first-stage inner cylinder body, of the second-stage plunger, and a second-stage liquid inlet and return opening is formed in the other end of the second-stage plunger; and first-stage liquid inlet and return opening is formed in the outer cylinder body. The two-stage oil cylinder is reasonable in design, compact in structure, capable of achieving independent stretching or retracting of pistons of all stages of the oil cylinder, capable of meeting the requirements of various different use working conditions and wide in application range.

The invention discloses a two-degree-of-freedom clothes airing device which comprises a bracket, a guide part, a driving part, a lifting part, a translation part and a control part. The guide part isarranged on the bracket. According to the embodiment, the guide part is arranged on the bracket, the lifting part is slidably connected to the guide part, the translation part is slidably connected tothe lifting part, the lifting part is driven by the driving part, and when the lifting part drives the translation part to ascend to the highest position, the driving part can be connected with the translation part and drives the translation part to horizontally move relative to the lifting part, so that clothes airing units are stretched and retracted. The two degrees of freedom of lifting and stretching of the clothes airing device can be achieved through one driving part, meanwhile, the driving part is installed on the bracket and does not ascend and descend along with the lifting part, and therefore the problem that a motor and other driving parts of an existing clothes airing device ascend and descend along with a clothes hanger, and consequently faults are prone to occurring is solved.

The invention discloses a storage cabinet which comprises a cabinet body and a plurality of drawers, the drawers are mounted in the cabinet body and can be drawn out to be operated by a user to take and place articles, and telescopic driving assemblies are arranged below the drawers and used for driving the drawers to automatically complete front-back sliding. The storage cabinet has the advantages of simple and compact structure, convenience in operation, high automation degree and the like.

The invention discloses an off-road chassis generator car which comprises a carrying vehicle and a carriage. A bottom plate is arranged at the bottom in the carriage; a top bin is arranged at the topin the carriage; a storage battery is arranged at the end, close to the head of the carrying vehicle, of the bottom of the bottom plate; cover plates are symmetrically arranged on the two sides of thetop of the carriage; racks are symmetrically arranged at the two ends of the bottom of each of the cover plates; and gears engaged with the racks are symmetrically arranged on the two sides of the tops of the two ends in the top bin. Through cooperative use of an electric lifting rod A, hinge plates, photovoltaic modules, a mounting plate, photovoltaic inverters, a sliding block B and a mountingframe, the inclination angles of the multiple groups of hinge plates are adjusted, so that the photovoltaic modules on the hinge plates can face the sun at the best angle; and the solar energy is converted into electric energy through cooperation of the photovoltaic modules and the photovoltaic inverters, the electric energy is stored in the storage battery, fuel energy consumption of a generatorset is reduced to a certain extent, and therefore the generator set is more environmentally friendly.