92results about How to "Effort-saving opening and closing" patented technology

The invention discloses a cold storage door which comprises a door panel (1) and a door frame (2). The door panel (1) is rotationally connected with the door frame (2), and limiting devices (3) and an opening device (4) are arranged between the door panel (1) and the door frame (2). When the cold storage door needs to be closed, clamps are automatically clamped by rollers under actions of springs, so that the door panel is closely connected with the door frame; and the cold storage door is prized up by the lever principle when required to be opened. The cold storage door can be opened and closed simply in a labor-saving manner owing to the limiting devices and the opening device, and the heat-insulation capability of the cold storage door can be improved owing to sealing strips and heat-insulation layers. Besides, the cold storage door has the advantages that the tightness of the door panel and the door frame can be freely adjusted, the cold storage door is smart in structure, and the like.

The invention discloses an integrated dampproof combined medical container.The integrated dampproof combined medical container comprises a cover body and a container body which are connected with each other.The periphery of the lower end face of the cover body extends downwards to form a first extending wall, and an outwards-protruding buckling mechanism is arranged at the edge of the first extending wall.The container body comprises a base body for containing medicine, the base body extends upwards to form a containing cavity, an opening is formed in the top of the containing cavity, the periphery of the upper end of the base body extends upwards to form a second extending wall, and an inwards-concave clamping groove in locking fit with the buckling mechanism is formed in the second extending wall.When the cover body and the container body are combined, the first extending wall is located inside the opening, the outer side wall of the first extending wall is tightly connected with the inner side wall of the second extending wall, the buckling mechanism is in clamped fit with the groove, and therefore sealed connection is formed between the cover body and the container body.The integrated dampproof combined medical container is reasonable in structural design, has the reliable sealing dampproof effect and is convenient to use, use cost can be effectively reduced, and the integrated dampproof combined medical container can be widely applied to storing and packaging medicine and the like prone to dampness absorption.

The invention relates to a furniture damping overturning opening and closing adjusting mechanism which comprises an overturning device. The overturning device comprises a pushing element, a connecting arm assembly and a fixing element; the pushing element is hinged to the fixing element through the connecting arm assembly, a damping assembly is arranged between the pushing element and the fixing element and comprises a level element and a damper, the damper is arranged on the fixing element, and the lever element is rotationally arranged on the fixing element; the two ends of the lever element act with the damper and the pushing element at least when the pushing element is overturned and closed by a section of stroke; the pushing element acts on the damper through the lever element at least when overturned and closed by the section of stroke, the damper is compressed and generates buffer force, and therefore the pushing element is overturned and closed to the fixing element in a damping manner; and an adjusting assembly is arranged on the lever element, the force arm, acting on the damper and/or the pushing element, of the lever element changes through the adjusting assembly by means of tools or manual actions, and therefore the buffer force of the damper is adjusted.

The invention belongs to the field of offshore drilling and particularly relates to an offshore drilling shore-based supporting mud plant system. The offshore drilling shore-based supporting mud plant system comprises a mobile pump skid integrated unit, a movable slurry preparing tank integrated unit, a movable storage tank integrated unit, a waste liquid treatment skid integrated unit and pipes, a control system and the like for connecting the integrated units. The whole system achieves drilling fluid preparation, transfer and recovery treatment functions and the like, the main constituent devices in the system are all designed to be modular, can be quickly transferred and quickly assembled to build a plant, the mobile pump skid integrated unit, the movable slurry preparing tank integrated unit, the movable storage tank integrated unit and the waste liquid treatment skid integrated unit are all designed to be in forms of stackable standard containers, and the capacity of the mud plant can be increased or decreased under the situation that occupied area is not increased. In addition, interfaces are further reserved for the system, and other functional modules can be added on the basis, such as other functional modules for achieving automatic cement delivery, harmless treatment of waste mud and the like.

The invention discloses a non-shaft-core dual-ball hinge. A middle hinge pipe of one connecting sheet of the hinge is located between an upper hinge pipe and a lower hinge pipe of the other connecting sheet, and an upper gap and a lower gap are formed; a lower ball bearing is contained in the lower gap and comprises a pair of ball discs and a plurality of balls, where an annular groove with the semi-circular cross section is formed in each ball disc, the two ball discs are oppositely combined, a channel with the round cross section is formed by the two annular grooves, and a plurality of balls are contained in the channel and are matched with the wall part of the channel; and an upper ball bearing is contained in the upper gap and comprises an upper ball disc, a lower ball disc and a plurality of balls, the upper ball disc and the lower ball disc are each provided an annular groove with the semi-circular cross section, the upper ball disc and the lower ball disc are oppositely combined, a channel with the round cross section is formed by the two annular grooves, the multiple balls are contained in the channel and are matched with the wall part of the channel, the lower ball disc is tightly matched to the middle hinge pipe through steps of the lower ball disc, a blind hole is formed in the top of the upper ball disc, and a connecting pin penetrates the upper hinge pipe and is in tight fit to the interior of the blind hole of the upper ball disc.

The invention discloses an adjustment and optimization mechanism for furniture tilt-up doors. The adjustment and optimization mechanism comprises a fixed part, a first spring, a second spring, a connection arm component and a lock-off adjustment device, wherein one ends of the first and second springs are respectively matched and connected with the fixed part and the other ends of the first and second springs are respectively matched and connected with one end of the connection arm component; the other end of the connection arm component is matched and connected with the lock-off adjustment device; the lock-off adjustment device is opened and closed on the fixed part in an overturning manner through the matching between the connection arm component and the first spring; and a damping and buffering device, a first spring adjustment device which is used for adjusting the acting force of the first spring and a second spring adjustment device which is used for adjusting the acting force of the second spring are arranged on the fixed part. Through structure improvement, the adjustment and optimization mechanism has the characteristics of being simple and reasonable in structure, safe, reliable, easy to produce, easy to realize, rapid to adjust, convenient to operate, long in service life, labor-saving and smooth in opening/closing process, small in collision and low in noise, and high practicability.

The invention discloses a manual/electric integrated PE ball valve opening and closing device. The manual/electric integrated PE ball valve opening and closing device comprises a support, a first rotation shaft, a power source, a first tooth piece, a second tooth piece, first helical teeth and second helical teeth. The second helical teeth are connected with an output shaft assembly, and the output shaft assembly is connected with a valve element of a PE ball valve through a transmission rod. The transmission rod is parallel to the first rotation shaft, and the other end of the first rotationshaft is connected with the valve rod. At least part of the valve rod stretches out of the outer portion of the support and is used for rotating of the first rotation shaft through manual applicationof external force. The manual/electric integrated PE ball valve opening and closing device is simple in structure, a ball valve can be manually and electrically driven to be opened and closed, the labor field operation can be replaced, the field maintaining and checking operation requirements can be combined, the small-torque manual operation is achieved through an inner mechanism, opening and closing are conducted in a labor-saving manner, the ball valve pipeline convenience, safety and reliability are improved, and the waterproof and anti-explosion characters are good; and the size is small,starting and stopping are efficient, the labor intensity is relieved, the service life is long, and the usage cost is reduced.

The invention relates to an automotive ventilation window. A top cover (4) and a main frame part (9) are connected into a whole by using stainless iron screws to form a complete ventilation window, a push-pull device (15) and an opening device are respectively fixed at the front ends and the rear ends of the top cover (4) and an inner cover (1), a ventilation fan (14) is fixed at the center of a wind scooper (6), one end of the wind scooper (6) is connected with the top cover (4), the inner cover (1), an auxiliary frame (3) and a decorative sheet (2) are arranged at an inner ring of the main frame part (9), the rear end of the top cover (4) is provided with a rain cover (5), the wind scooper (6) is connected with the rain cover (5), and an air inlet is designed in hand clasping profiles (10). The automotive ventilation window is characterized in that a rain shielding rib I (7) and a rain shielding rib II (8) are arranged in the wind scooper (6) to form double waterproof effects in cooperation with the rain cover (5). The structure provided by the invention has the advantages of strong air exhaust, low noise, high airtightness, labor saving in opening and closing operation, and inward/outward bidirectional opening.

A damper opening and closing angle varying mechanism of a hinge comprises a blocking element, a connection element and a lever element which are in hinge fit with one another. A damper is arranged between the blocking element and the connection element. One end of the damper is rotationally arranged on the blocking element, and the other end of the damper abuts against the connection element. The connection element, the lever element and the damper are linked with one other relative to the blocking element when the hinge is opened or closed. When the hinge is closed by at least one certain angle, the lever element acts on the damper and drives the damper to slide on the connection element in a limited mode, the damper is compressed and generates damping force, and thus, damped closing of the hinge is achieved. Through the structure improvement, the damper opening and closing angle varying mechanism of the hinge has the characteristics that the structure is simple and reasonable, safety and reliability are achieved, production and implementation are easy, adjustment is fast, operation is convenient, the service life is long, practicability is high, and the opening and closing process is labor-saving, smooth, small in collision and low in noise.

The invention relates to a cab of engineering machinery, which comprises a main body, a front window and a door. Wherein, said door comprises a door body connected to one switch device; said switch device comprises a rotating axle and a connecting rod transmission device; the connecting rod transmission device is formed by parallel first upper and lower connecting rods and parallel second upper and lower connecting rods; the rotating axle is fixed inside the cab; one end of first upper and lower connecting rods is connected to the rotating axle, while another end is connected to the top and bottom of vehicle door; one of second upper and lower connecting rods is connected to the main body of cab, while another end is connected to the top and bottom of vehicle door. The invention has simple structure and beautiful appearance, while it uses closed window to obtain better operation stability and easy pushing-drawing, with long service life.

The invention provides a double-segment seal gate valve which comprises a valve body, a valve deck, a flashboard and a switch body, wherein the valve body is cylindrical and comprises an upstream valve body, a valve body middle cavity, a gate valve slot and a downstream valve body; the gate valve slot is formed between the valve body middle cavity and the downstream valve body, and the flashboard axially perpendicular to the valve body and a sealing device are arranged between the upstream valve body and the downstream valve body; the sealing device comprises cylindrical valve seat supporting rings, a front cover, a packing ring, a spring supporting seat, a spring and a rear cover; the valve seat supporting rings are arranged in an inner wall groove of the valve body middle cavity, the internal diameters of the valve seat supporting rings are equal, and the external diameters of the valve seat supporting rings are progressively increased in an upstream direction to a downstream direction; the front cover, the packing ring, the spring supporting seat, the spring and the rear cover are sequentially arranged in gaps between the valve seat supporting rings and the groove of the valve body middle cavity; the switch body is arranged at one end of the flashboard and axially perpendicular to the valve body. Under the condition that the pressure of the gate valve slot abnormally rises, the gate valve can quickly discharge pressure from an upstream pipeline to realize safety protection.

The invention provides a steel and wood heat-insulating fireproof door, which comprises a door frame and a door leaf. The door frame is hinged with the door leaf through fireproof hinges; the door leaf includes a skeleton; the skeleton is filled with expanded perlite fireproof board; the surface of the expanded perlite fireproof board is wrapped with the first magnesium silicon fireproof board in turn, and a L Shaped fireproof expansion seal; the door frame is fixed with a second magnesium-silicon fireproof board on the inner side of the fire-receiving surface; a door gap seal is also set between the door leaf and the door frame. The door leaf is 2214mm high, 55mm thick and 914mm wide. The expanded perlite fire-proof board is installed inside the door leaf to improve the fire-proof effect, and the magnesium-silicon fire-proof board is installed to further improve the fire-proof effect and at the same time improve the strength and impact resistance of the door leaf. By properly installing the L-shaped fireproof expansion seal on the door frame, the effect of sealing and fire prevention can be improved and the noise generated between the door leaf and the door frame can be reduced when the door leaf is closed.

The invention relates to a lunch box hand barrow, which comprises a base, side surrounding frames and lifting handles, wherein the lower ends of the side surrounding frames are respectively hinged with the base and can rotate around a hinging point of the base; a sliding chute and a sliding rod which are away from the hinging point are respectively arranged on the joints of the side surrounding frames and the base; under the limiting of the sliding chute, turning type anti-toppling and upright positioning structures of the left side surrounding frame and the right side surrounding frame are formed; due to the limiting of the sliding chute, a fastening and releasing structure of a cover buckle of a lunch box rail to a lunch box is formed; a button is directly formed on a top cover; a ]-shaped gap is formed between the button and a main body of the top cover, so that a structure for driving the button to move up and down is formed; a sliding hook and a clamping slot which are respectively arranged on the button and the top cover of the left surrounding frame form an automatic locking structure of the left side surrounding frame and the right side surrounding frame; and locking ends between the left side surrounding frame and the right side surrounding frame are separated under the pressing of the button, and the gravity centers of the left side surrounding frame and the right side surrounding frame are away from the hinging point of the base, so that automatic turning structures of the left side surrounding frame and the right side surrounding frame are formed. The lunch box hand barrow has the advantages of being convenient to use, easy to open and close and capable of saving opening and closing strength, preventing toppling of the lunch box.

A damping, muting and limiting mechanism of a furniture turnover device comprises a movable element, a fixed element, a lever element, a damper and a connection arm assembly; the connection arm assembly at least comprises a first connection arm and a second connection arm; the movable element is hinged to the fixed element in a matched mode at least through the first connection arm and the second connection arm; the fixed element is provided with an elastic assembly; the movable element is arranged on the fixed element in an open and closed mode through elastic turning over of the elastic assembly; the lever element is rotationally arranged on the fixed element, one end of the lever element is interacted with the damper, and the other end of the lever element is provided with a damper closing area, a first damper opening area and a second damper opening area; and the first connection arm is provided with a service portion, the second connection arm is provided with a limiting portion, and a notch is formed between the service portion and the limiting portion. According to the damping, muting and limiting mechanism of the furniture turnover device, through structure improvement, no matter when a flap-up door of a piece of furniture is changed from an open state to a closed state, or from the closed state to the open state, the lever element can be forced to move on the fixed element according to the factory preset position, and the practicability is high.

A plate-type heat exchanger unit comprises a plate-type heat exchanger, a circulation water pump and a standby circulation water pump. The plate-type heat exchanger comprises a first medium inlet, wherein a water supply pipeline and a standby water supply pipeline are connected to the first medium inlet in parallel. The circulation water pump is arranged in the water supply pipeline. An electric butterfly valve is arranged between the circulation water pump and the first medium inlet. The standby circulation water pump is arranged in the standby water supply pipeline. A standby electric butterfly valve is arranged between the standby circulation water pump and the first medium inlet. The control end of an electric actuator on the electric butterfly valve and the control end of an electric actuator on the standby electric butterfly valve are both connected with a controller. The control end of the circulation water pump and the control end of the standby circulation water pump are both connected with the controller. The electric butterfly valves are adopted to control the pipelines, starting and closing are convenient, labor is saved, fluid resistance is small, the starting and closing speed is lower than that of a check valve, the water hammer phenomenon can be avoided, and at the same time, high-pressure water at outlets of the water pumps can be well blocked off. The electric butterfly valves are the same as manual butterfly valves in fluid resistance, resistance can be reduced for a system, and operation cost is lowered.

The invention provides a movable locating and assembling structure for a furniture up-turning folding door. The movable locating and assembling structure comprises an up-turning device and a movable locating device. The up-turning device comprises a connecting arm. The movable locating device comprises a moving element, a connecting element and a locating element. The locating element is providedwith a groove part. One end of the moving element is connected with the connecting arm, and the other end of the moving element extends into the groove part and is connected with the connecting element. The moving element moves on the groove part through the connecting element. An elastic pre-tightening part is arranged between the moving element and/or the connecting element and the locating element. The moving element and/or the connecting element are/is located on the locating element elastically in advance in a moving manner through the elastic pre-tightening force of the elastic pre-tightening part. The elastic pre-tightening part is further provided with an adjusting part. The elastic pre-tightening part achieves adjustment of the size of the elastic pre-tightening force through theadjusting part. The movable locating and assembling structure has the beneficial effects of being simple and reasonable in structure, safe, reliable, easy to produce, easy to realize, convenient to operate, long in service life, fast to assemble, smooth in the opening and closing process, small in collision and low in noise, and saving force, and practicality is high.