75results about How to "Reliable opening and closing" patented technology

The present invention provides a heat exchange type ventilator in which the size of a flow passage changing unit provided with a damper can be reduced. The ventilator includes a partition plate (211) partitioning an exhaust flow passage (209) from an intake flow passage (210), an exhaust damper receiver (213) having an exhaust opening (212), and an intake opening (214). The ventilator further includes a flow passage changing unit (222) having an intake damper receiver (215), an exhaust damper (216) opening and closing the exhaust opening (212), and an intake damper (217) opening and closing the intake opening (214). A damper side bent part (224) is provided in the exhaust damper (216) and the intake damper (217), and a receiving side bent part (223) is provided near the end parts of the exhaust damper receiver (213) and the intake damper receiver (215) along the damper side bent part (224).

There is disclosed a gas springs, in which a closed air compression system made up of a damping air passage is disposed between main and secondary elastic air cavities formed by separating the cylinder body via the piston. By using the damping force action of the damping air passage on the medium, there is unequal gas pressure in the main and secondary air cavities. When the piston up and down moves under the action of the external force, i.e., the gas spring is expressed externally as compression or extension, it can automatically regulate its rigid change to balance the action adapted to external force.

There is provided a heat exchange type ventilator capable of downsizing of a flow path switching unit in which dampers are provided. A flow path switching unit includes a partition plate (211) that partitions into an exhaust flow path (209) and an air supply flow path (210), an exhaust damper receiver (213) including an exhaust opening (212), and an air supply opening (214). Moreover, the flow path switching unit (222) includes an air supply damper receiver (215), an exhaust damper (216) that opens and closes an exhaust opening (212), and an air supply damper (217) that opens and closes the air supply opening (214), Damper-side bent portions (224) are provided in the exhaust damper and the air supply damper, and receiver-side bent portions (223) are provided along the damper-side bent portions in the vicinity of end portions of the exhaust damper receiver and the air supply damper receiver.

A dual-sealing high-pressure cut-off valve without flush is composed of valve body and dual-sealing unit. Said dual-sealing unit features that the circular valve rod under the upper sealer passes through spring holder, compressed spring and protecting cover of valve flap and then connected to the valve flap. Under the action of spring and valve rod, the outlet channel is controlled by said protecting cover of valve flap and the inlet channel is controlled by valve flap.

The invention discloses an intelligent refrigerator based on identity recognition and management. The intelligent refrigerator based on identity recognition and management comprises a refrigerator body and an intelligent management system based on identity recognition and management. The refrigerator body stores food materials through food material boxes provided with identity recognition marks. A plurality of storage layers are formed in the refrigerator body. A plurality of storage cells are arranged in each storage layer. A lifting conveying mechanism which is used for storing and taking the food material boxes in the storage layers and provided with a storage table located below a storing and taking opening is arranged on the same side of the multiple storage layers. A longitudinal conveying mechanism used for storing and taking the food material boxes in the multiple corresponding storage cells is arranged in each storage layer. A transverse conveying mechanism used for storing and taking the corresponding food material boxes is arranged in each storage cell. The intelligent management system is used for distributing and managing the storage positions of the food material boxes, and the lifting conveying mechanism, the longitudinal conveying mechanisms and the transverse conveying mechanisms are controlled to start or stop for storing or taking. The intelligent refrigerator based on identity recognition and management has the beneficial effects that the refrigerator can store and take food or the food materials automatically according to requirements, the cold loss of the refrigerator is low, energy consumption is low, and the storing and taking efficiency is high.

The invention discloses a mechanical button coded lock which finishes locking and unlocking through an external button driving an internal connected column hook, comprising a support saddle (1), cipher buttons (2), an upper cover plate (10), a lower cover plate (11), a lock plunger (5), a bolt (6) and a lock catch (20), wherein, a knob (16) is opened, cipher column hooks (4) are arranged inside the support saddle (1), the cipher column hooks (4) are in one to one correspondence with the cipher buttons (2); two clamped and hung hook plates (8), (9) are arranged inside the support saddle (1); the cipher column hook (4) penetrates the two clamped hook plates (8), (9); the clamped hook plate (8) and the clamped hook plate (9) are parallel; the cipher buttons (2) totally have 11 buttons, including zero to nine and a 'full stop'. The invention has the advantages of multilayer clamping and hanging, multiple group ciphers, reusing availability of the same button, concealed inputted buttons, etc. The invention is further improved in the aspects of cipher group quantity and security.

The invention provides a water-circulation heating system for a furniture pad and a furniture pad which is provided with such a heating system. The heating system comprises a water storing shell and a serpentine coil. The water inlet port and the water outlet port of the water storing shell are respectively communicated with two ends of the serpentine coil, forming a circulation loop. One end of the water storing shell, at which the water outlet port is arranged, is provided with a water transporter used to drain the water from the water outlet port, and the other end on which the water inlet port is arranged is provided with an electrical conductive conduit pipe which extends to certain length into the inner cavity of the water storing shell. The electrical conductive conduit pipe and the water storing shell are insulated with one another and are respectively electrically connected with a DC electrical source, forming a pair of electrodes to heat the water transported to the water storing shell by the electrical conductive conduit pipe. Adopting the electrodes to heat, which are constituted by the water storing shell and the electrical conductive conduit pipe in the inner cavity of the water storing shell, the heating system can not radiate electromagnetic waves during the heating process. Therefore, the heating system is safe and healthy, with high heating efficiency and good effect. Meanwhile, the heating system is dispensed with the parts particularly used to construct the electrodes, therefore the heating system has the advantages of simple and compact structure, small volume and light weight.

A composite radiating disk bonnet cryogenic adjusting valve comprises a main valve and a bonnet. An actuator is disposed on the bonnet. A valve element is disposed in the middle of the valve body of a main valve. A seal valve seat is disposed below the valve element. A sleeve cage is disposed on the periphery of the valve element. A valve rod is connected above the valve element. The upper section of the valve rod is matched with the seal filler in the stuffing box on the upper portion of the bonnet to extend out to be connected with the actuator component. The actuator drives the valve element to perform up-down linear travel movement. A composite radiating disk structure formed by a large-piece large-diameter radiating disk and a plurality circles of small-diameter radiating disks is disposed outside the bonnet, average temperature conductivity is increased, cold temperature on the periphery of the neck and convection radiating area and temperature differences of surrounding environments are increased, excellent radiating effects are achieved, freezing adhesion of the slide fit part of the valve rod and the filler can be avoided when the temperature is above 0 DEG C, reliable opening and closing and adjusting of the valve is guaranteed, the valve rod and the filler are prevented from being scratched by frozen hard objects, the overall strength of the bonnet and the valve are increased, cost is lowered, and economical benefits and reliability are increased.

The invention discloses a reclosing device of a circuit breaker. The device comprises a driving structure, a gear set and a clutch structure arranged between a driving gear and the driving structure,and the clutch structure comprises a mounting groove arranged in the gear set, a clutch wheel, a limiting piece and an elastic piece, wherein the clutch wheel and the limiting piece are arranged in the mounting groove, and the elastic piece is arranged on a top surface of the clutch wheel in an abutting mode; a one-way positioning structure is arranged between the mounting groove and the clutch wheel so that a pre-positioning effect on a ratchet wheel in the mounting groove is achieved; a triggering distance between the clutch wheel and a pawl can be greatly shortened; and when a power structure drives the gear set to carry out one-way closing rotation through the clutch structure, a long idle stroke between the clutch wheel and the pawl can be avoided, waiting time is greatly reduced, closing time of the circuit breaker is shortened, closing time is ensured to be within a reclosing prescribed range, and use performance of products is improved.

The invention discloses a throwing mouth of a vacuum refuse system aiming at the disadvantages existing in the prior art. The throwing mouth of the vacuum refuse system comprises a box body with an opening, a skip bucket doorframe arranged on the opening surface of the box body, a skip bucket door hinged on one side of the box body and a doorknob fixed on the skip bucket door, wherein a plurality of shock absorption devices which can weaken impact force in the process of closing a skip bucket are arranged on the skip bucket doorframe; each shock absorption device consists of a plurality of spring dampers and is arranged on the edge of one side opposite to the hinge of the skip bucket door; and rubber strips for weakening the impact force in the process of closing the skip bucket are embedded at the periphery of the skip bucket doorframe. The invention is characterized in that: the throwing skip bucket can be closed lightly, so that noise and the impact force in the process of closing the skip bucket are effectively reduced; and the throwing mouth of the vacuum refuse system can be used conveniently and reliably.

The invention provides a drainage pipeline silt removing device with the flow distribution function. The device comprises a first installing unit and a second installing unit which are arranged in the silt entering direction, and an installing body of the first installing unit is the same as that of the second installing unit; a pushing cylinder used for changing the distance between the first installing unit and the second installing unit and a silt discharging unit used for discharging silt are arranged between the first installing unit and the second installing unit; the drainage pipeline silt removing device further comprises driving units corresponding to the installing bodies, and each driving unit comprises a driving cylinder and a gate; piston end heads of the driving cylinders are connected with the gates, and the gates are arranged in the corresponding installing bodies. By means of power flow distribution of the driving cylinders, the silt removing device can be accurately and reliably opened and closed in the working process of a drainage pipeline, and the slit removing work efficiency is improved.

The invention discloses an opening device for an end socket. The opening device comprises the end socket arranged on a device barrel, a supporting column is fixedly installed outside the device barrel, a hinge shaft is installed on the top of the supporting column, a balance rod is hinged to the hinge shaft, one end of the balance rod is fixedly connected with the top of the end socket, and a balance weight is arranged at the other end of the balance rod. Under the effect of external force, the balance weight can rotate downwards, so that the end socket is made to rotate upwards until the end socket is completely opened or the balance weight can rotate upwards, so that the end socket is made to rotate downwards until the end socket completely covers the device barrel. When the end socket is completely opened, the gravity center of the end socket, the gravity center of the balance weight and the gravity center of the balance rod are located outside the hinge shaft. A locking device for locking the end socket to cover the device barrel is arranged between the end socket and the device barrel. The opening device has the advantages that the structure is simple, opening and closing of the end socket are very convenient and reliable, the end socket cannot occupy horizontal space after being opened, and therefore horizontal space needed for installation of the device barrel is greatly reduced.

The invention discloses an automatic backwashing water purifier which comprises electromagnetic valves, a circulating pressure pump, an RO (reverse osmosis) device and a water storage tank. One electromagnetic valve is arranged on a producing water pipeline at a producing water end of the RO device, the producing water end of the RO device is connected with the water storage tank through the electromagnetic valve on a water inlet pipeline of the water storage tank and connected with a circulating pressure pump through the electromagnetic valve on a producing water pipeline of an RO film, one electromagnetic valve for controlling a water source is arranged on a water inlet pipeline of the RO device, the water source enters the RO device through the electromagnetic valve on the water inlet pipeline of the RO device and is purified and filtered, the electromagnetic valve is arranged on the water inlet pipeline of the water storage tank, producing water of the RO film enters the water storage tank through the electromagnetic valve on the water inlet pipeline of the water storage tank, the water storage tank is provided with a TDS (total dissolved solid) sensor, the other end of the circulating pressure pump is connected with the producing water pipeline of the water storage tank, and the electromagnetic valve for controlling water discharge is arranged at the tail end of the producing water pipeline of the water storage tank. The automatic backwashing RO water purifier is clear in structure, and the service life of a water purifying filter element is greatly protected.

On opening and closing the louvers, provided at the air suction port in the front panel of the interior-side heat exchange unit, an arm is provided on the side of the rear surface of each of the louvers, and each of those arms is collectively driven by an interlocking plate which is reciprocatively moved linearly through the driving lever by a motor, whereby each louver is accurately interlocked to reliably open and close without the aid of the gear mechanism of pinion-rack.

The invention belongs to the technical field of power transformation equipment and intelligent assemblies, and particularly relates to an electric key of a switch cabinet door lock. The electric key comprises an electric assembly, a key head arranged on an output shaft of the electric assembly and a positioning mechanism arranged at the end of the electric assembly and used for positioning a cabinet door lock. The self-resetting type positioning mechanism is adopted, the positioning mechanism is rapidly and tightly attached to a base of the cabinet door lock, and closing and opening efficiencyof the cabinet door lock can be improved.

The invention discloses a bottle clamping mechanism used for clamping a bottle opening. The bottle clamping mechanism comprises a pair of clamping pieces arranged on an installing base. Each clampingpiece comprises a clamping piece connecting part and a clamping piece clamping part. Each clamping piece connecting part is provided with a rack. The racks of a pair of clamping piece connecting partsare meshed with the two sides of a gear correspondingly. The gear is fixed to a main shaft. The main shaft is movably installed on a connecting plate. The connecting plate is fixed to the installingbase. The upper end of the main shaft extends out of the connecting plate and is fixedly connected with a swing rod. The swing rod is driven by a swing drive mechanism. A resetting tension spring is connected between a pair of clamping piece connecting parts. Under driving of the swing drive mechanism, the swing rod drives the gear on the main shaft to rotate, and thus the clamping piece connecting parts are driven to get away from each other until the bottle opening can be clamped in or drop out. After the swing rod and the swing drive mechanism are separated, under the effect of the resetting tension spring, the clamping piece clamping parts get close to each other until the bottle opening is clamped. The bottle clamping mechanism has the beneficial effects of being simple and ingeniousin structure and feeding and discharging bottles reliably.

The invention relates to a reverse boring cutter, and belongs to the technical field of a machining cutter. The reverse boring cutter comprises a cutter bar (1), a cutter body, a slide valve (2), a mandril (4), a blanking cap (5), a spring (6) and a hinge pin (8), wherein the tail part of the cutter bar is provided with a high through cooling fluid through hole (101), the middle part of the cutter bar is provided with a cavity (102) for holding the slide valve and a cavity (103) for holding the cutter body, and the head of the cutter bar is provided with a cavity (104) for holding the mandril, a spring and the blanking cap and a hole for installing the hinge pin (8); the slide valve is arranged in the cavity (102), and can slide axially along the cutter bar, the cutter body is installed in the cavity (103) through the hinge pin and can rotate freely by taking the hinge pin as a shaft in the cavity, the mandril sliding axially along the cutter bar and the spring fixedly connected with the cutter bar are arranged in the cavity (104). According to the reverse boring cutter provided by the invention, the problems that the reverse boring cutter is complicate in structure, high in manufacturing cost and low in durability, and cooling equipment needs to be installed additionally at work can be solved.

The present invention provides an air leakage mending set. The air leakage mending set can reliably open and close a flow path. Furthermore jointing between an inner cover and a cover body according to the prior art is not required, thereby improving finished product rate when an extraction cover is formed. In a bottom unit for the air leakage mending set which mounts the extraction cover on the mouth part of a bottle container, the extraction cover is provided with the following components: a cover body which is provided with a guiding hole with an open end at a taking-in opening; and an air conveying feeding pipe which is held to the cover body slidably in a vertical direction and is provided with a central hole. The lower end side of the central hole is connected with the other end of the guiding hole and cooperates with the guiding hole for forming a first flow path. A first plugging unit is composed of a plugging sealing member which is equipped at the upper end of the air conveying feeding pipe, and furthermore the bottom surface of the bottle container is provided with an unsealing projection. The unsealing projection breaks the plugging sealing member along with rise of an air connecting pipe.

A positioning device includes a positioning element that is situated movably in a first direction and a second direction, the first and the second directions being opposed to one another, and a first piezoelectric actuator and a second piezoelectric actuator, the first piezoelectric actuator moving the positioning element in the first direction and the second piezoelectric actuator moving the positioning element in the second direction.

The invention relates to an axial-flow type air control balance stop valve and belongs to the field of air control stop valves. The axial-flow type air control balance stop valve comprises a shell 1, a valve seat assembly 2, a joint head 3 and a sealing gasket 4. An air source is controlled to enter the valve from a control port 5 and push a piston 6 and a reset spring 21 on a movable valve seat 7, the movable valve seat 7 and the sealing gasket 4 are disengaged, and then the valve is opened; after the air source is controlled to stop supplying air, the movable valve seat 7 makes contact with the sealing gasket 4 again and is sealed under the action of the reset spring 21, air flow in a system is cut off, and the valve is closed. The axial-flow type air control balance stop valve is small in size, low in flow resistance, convenient to install, capable of saving installation space, mainly applicable to a high-pressure fluid system and suitable for large-range popularization.

The invention discloses a motorbike tire segmental mold structure for a plate vulcanizing machine. The structure is composed of an upper cover plate, an upper cover, an upper side plate, a T-shaped block, a pattern block, a guide bar, a pattern block locking wedge, a pedestal, a distance determining rod, an order pull rod and an order pull rod limiting device. The pattern block locking wedge is asingle block structure and embedded in the upper cover plate for locating; the distance determining rod is fixed on the upper cover plate and passes through the upper cover, when primary mold openingis executed, the distance determining rod guides, limits and supports the upper cover; the T-shaped block is connected above the pattern block through a bolt, and can move radially in a T-shaped blockgroove of the upper cover; the pattern block is connected with the pattern block locking wedge through the guide bar; the order pull rod is fixed on the pedestal; and a semicircular groove is designed at a head part of the order pull rod and cooperates with a spring pin in the order pull rod limiting device to play a role in secondary mold opening. The mold structure provided by the invention realizes segmental mold movement actions on a tire shaping vulcanizer, and can make the plate vulcanizing machine perform vulcanizing production for a meridian motorbike tire.

The invention relates to an emergency operation device of a battery driven mobile type hydraulic opening and closing machine and a working method thereof. The device comprises a power supply driving assembly and a hydraulic control system. The power supply driving assembly comprises a battery pack and a direct current motor. A first quick connecting hose and a second quick connecting hose connected to rod cavities of two hydraulic cylinders of the hydraulic opening and closing machine separately, a fifth quick connecting hose and a sixth quick connecting hose connected to a hydraulic oil tankof the hydraulic opening and closing machine and a third quick connecting hose connected to control pipelines of the hydraulic cylinders of the hydraulic opening and closing machine are arranged on the hydraulic control system, the first and second quick connecting hoses are separately connected to oil dividing ports at two ends of a dividing and collecting valve through pipelines, a pressure sensor and a branch pipeline are arranged on an oil dividing port pipeline of the dividing and collecting valve, the outer end of the branch pipeline is connected to an oil unloading oil tank, and an electromagnetic switch valve is arranged on the branch pipeline. In an emergency operation, the emergency operation device can synchronously control the two hydraulic cylinders of the hydraulic opening and closing machine with high precision so as to start a gate stably and reliably.

A positioning device includes a positioning element that is situated movably in a first direction and a second direction, the first and the second directions being opposed to one another, and a first piezoelectric actuator and a second piezoelectric actuator, the first piezoelectric actuator moving the positioning element in the first direction and the second piezoelectric actuator moving the positioning element in the second direction.