543results about How to "Open and close smoothly" patented technology

Disclosed is a labor-saving pressure rebound mechanism for furniture. The labor-saving pressure rebound mechanism comprises a pressure rebound device which at least includes a rebound support and a displacement element, the displacement element is positioned on the rebound support and/or slides thereon, a heart-shaped sliding chute is arranged in the rebound support, a sliding part and a sliding element are arranged on the displacement element, and the sliding element is slidably arranged on the displacement element; the sliding part is acted on when the displacement element is positioned on the rebound support and the sliding element slides on the displacement element, and the sliding part slides along the track of the heart-shaped sliding chute in the sequential direction to drive the displacement element to slide on the rebound support. Through improvement of the above structure, the labor-saving pressure rebound mechanism has the advantages of being simple and reasonable in structure, reliable in performance, compact in connection of elements, long in service life, low in manufacturing cost, rapid and convenient in disassembly, highly flexible and the like, and the labor-savingpressure rebound mechanism can be further widely applied to overhead doors, drawers, sliding doors or sliding rails of the furniture, and is wide in use and highly practical.

The invention discloses an air-powered braking roof wing device, which comprises a wing plate and a mounting connecting portion. The mounting connecting portion is connected with a roof, a rotary supporting portion and a hydraulic driving portion are disposed on the mounting connecting portion, the wing plate consists of a left rocker arm and a right rocker arm, the rotary supporting portion consists of a left rocker arm support and a right rocker arm support, the left rocker arm and the right rocker arm of the wing plate are respectively mounted on the left rocker arm support and the right rocker arm support of the rotary supporting portion, the hydraulic driving portion comprises hydraulic cylinders and hydraulic units, the hydraulic cylinders are connected to the hydraulic units by hydraulic pipes and joints, the hydraulic cylinders are mounted on the mounting connecting portion by hydraulic cylinder mounting seats, piston rods of the hydraulic cylinders are connected with the wing plate, the hydraulic units can drive the piston rods of the hydraulic cylinders to expand and retract, and accordingly, the wing plate is driven to rotate around the left rocker arm support and the right rocker arm support. The air-powered braking roof wing device with the structure is stable in opening and closing and fine in safety.

The invention provides a zipper belt and a zipper chain belt, which can prevent reverse wrinkles when a zipper is woven to a product. Moreover, the problems caused by wrinkles in the zipper in the steps such as dyeing, delivering, injection moulding, and the like, are solved. The provided zipper belt (1,1b) comprises a belt main body (2) and a chain installation part (5) provided with a core rope(20). The belt main body (2) comprises an ear part (4) containing a plurality of warps (10) and a basic part (4) arranged between the ear part (3) and the chain installation part (5). The warps (10) of the basic part (4) are arranged in a more released state, compared with the at least one of the warps of the ear part (3) and the core rope (20).

The invention provides multifunctional transplanting equipment which comprises a body, a handle, a field planting head, a movable barrel, a lever and an elastic resetting component. The handle and the field planting head are respectively arranged at two opposite ends of the body, the field planting head comprises a guide sleeve and a plurality of movable sheets, the guide sleeve is connected with the body, each movable sheet is rotationally connected with the end, which is far away from the handle, of the guide sleeve, the multiple movable sheets are arranged around the guide sleeve at intervals, the movable barrel is movably arranged in the guide sleeve, the lever is rotationally connected with the body, the movable barrel and the body are respectively connected with two opposite ends of the elastic resetting component, the movable barrel is compressed by the lever when the lever rotates and can move towards the movable sheets, and the elastic resetting component can be stretched by the movable barrel, so that the multiple movable sheets can be opened to form an opening which is communicated with the movable barrel; the movable barrel is allowed by elastic force of the elastic resetting component to move towards the handle, so that the multiple movable sheets can be gathered to close the opening. The multifunctional transplanting equipment has the advantage that mulching films can be prevented from being suspended when the multifunctional transplanting equipment is lifted.

The invention relates to a silent hinge for furniture, which comprises a movable hinged cup connected with a door plate, a fixed piece connected with a wall plate and a hinged arm connected with the movable hinged cup and the fixed piece; a damper is arranged on the movable hinged cup and at least acts on the hinged arm when the hinge is closed, springs which can generate opening and closing action force to the movable hinged cup at least is arranged on the hinge, and one end of the hinged arm is hinged with the movable hinged cup through a connecting unit; the cross section of at least one ends of the springs are non-circular, a sliding piece is arranged on the spring; a concave cavity is formed in the sliding piece, and at least one end of the spring is arranged in the concave cavity; the bottom surface of the sliding piece acts on a rotating part of the hinged arm through the elasticity of the springs, and the sliding piece moves relative to the rotating part when the hinge is opened and/or closed and generates an opening force or a closing force. Through an improved structure, the silent hinge has the characteristics of simple and reasonable structure, reliable performance, flexibility in operation, long service life, stable and smooth opening and closing process, less effort, low noise and the like, thereby having high practicability.

The invention provides a long-plunger type dual-barrel coal-dust resistant discharging and extracting pump capable of preventing eccentric wear and coal dust from burying pump, blocking pump and prolonging the pump detection period. The pump consists of a centering body, a pump barrel assembly, a piston assembly, a liquid outlet valve and a liquid inlet valve assembly; a centering locking claw is inserted in a lock sleeve of an upper coupling to realize positioning and sealing of the centering body and avoiding eccentric wear between the plunger and the pump barrel; an internal barrel can prevent the deposited coal dust in the annulus of a bar pipe from entering the gap between the plunger and the pump barrel; the coal dust is dropped back to a tail pipe through the annual cavity between the external barrel and the pump barrel to prevent the coal dust from burying the pump; the structure of the long-plunger short pump barrel can promptly discharge the coal dust in the gap between the plunger and the pump barrel, so as to protect the internal and external working surfaces of the pump barrel and preventing the pump from being blocked; the well liquid stored in the coal-dust resistant tank washes the coal dust in the liquid outlet valve cover and the coal dust deposited at the upper part of the liquid outlet valve through a jet orifice, so as to realize an automatic washing function of the liquid outlet valve and preventing the coal dust from jamming the pump; and a spring is cooperated with a liquid inlet valve ball positioning pin, so that the liquid inlet valve ball can be fast reset, and the pump valve under a low submergence can be realized in smooth on and off.

An elastic acting force structure of a furniture upturning device comprises a fixing support, a swing rod and a spring assembly, wherein the swing rod is arranged on the fixing support in a swinging mode and interact with the spring assembly during swinging, so that the spring assembly generates elastic acting force; the spring assembly comprises a front connection part, a rear connection part, a guide shaft and a spring; the guide shaft is sleeved with the spring; the two ends of the spring elastically act on the front connection part and the rear connection part; the two ends of the guide shaft are connected with one end of the front connection part and one end of the rear connection part in a matched mode; the other end of the front connection part is connected with the swing rod in a matched mode; and the other end of the rear connection part is connected with the fixing support in a matched mode. By improvement of the structure, the elastic acting force structure of the furniture upturning device has the characteristics of being simple and reasonable in structure, safe, reliable, easy to produce and achieve, rapid to adjust, convenient to operate, long in service life, smooth in opening and closing process, capable of saving labor, low in collision, low in noise, wide in use range and the like, and practicability is high.

A charged springback structure of drawer slides comprises a main drawer body, fixed slides, drawable slides and a main furniture body, wherein the fixed slides are arranged on the main furniture body; the drawable slides are arranged on the main drawer body; an inductor device is arranged at the rear end of the main furniture body and comprises a fixed element, an inductor element and a clamping element sliding on the fixed element through an elastic element, a clamping fit element is arranged at the rear end of the main drawer body, and springs are arranged between the fixed slides and the drawable slides; the main drawer body overcomes the reacting force of the springs and enables the clamping fit element to be clamped to the clamping element to realize limited closing; the main drawer body triggers the inductor device to enable the clamping element to move elastically and be separated from the clamping fit element and at least opens for a certain distance under the acting force of the springs, and the clamping element resets to the initial position automatically through the elastic element when the main drawer body at least opens for a certain distance and/or the inductor device is not triggered. The charged springback structure of the drawer slides has high practicability.

The invention discloses a passive-trigger-type space debris capturing device. The passive-trigger-type space debris capturing device comprises two capturing storage bins, a trigger system and a base, wherein the trigger system and the base are connected between the two capturing storage bins, and the trigger system and the base are connected. The capturing storage bins comprise storage bin bodies and storage bin connecting rod assemblies connected with the storage bin bodies; and storage bin openings are formed in the storage bin bodies, the storage bin connecting rod assemblies are connected with the base, and the trigger system comprises a motor, a lead screw driving system, a sliding-block-type opening and closing system and a spring trigger. The passive-trigger-type space debris capturing device has the beneficial effects that the space debris capturing device belongs to a passive cleaning method, space debris can be effectively acquired through an integral enveloped-type structure of the two capturing storage bins, and the debris is acquired passively by arranging the trigger system; and because the debris is cleaned mainly depending on natural factors of the outside world, the consumed energy is extremely little, and the cost is reduced.

The present invention provides an expanding bottom excavator bucket which can form peg easily even though in hard stratum. The expanding bottom excavator bucket (1) is used to form a expanding bottom part (60b) which diameter is larger than the axis part (60a) in the bottom of the peg. The bucket comprises a cylindrical main body part (11) and an amplifying range wing part (12) to enlarge the diameter of the main body part (11), moreover, setting multiple rotary cutting devices (121) on the side end part of the amplifying range wing part (12) in the extending direction of the side end part.

The invention discloses an airbag type ventilation and drainage positive and negative pressure water hammer control valve group. The airbag type ventilation and drainage positive and negative pressure water hammer control valve group is arranged on an infusion pipeline or a container system and comprises a water hammer relief valve, a trace exhaust valve, a high-speed exhaust valve, a rear regulating valve, a negative pressure air suction valve, a manual venting and draining valve and a monitoring pressure gauge; the rear regulating valve is arranged at the outlet end of the high-speed exhaust valve; the water hammer relief valve is directly connected with the top or the lateral side of the negative pressure air suction valve through threads or a flange; the trace exhaust valve is connected with a hole which is formed in the front of the water hammer relief valve; the high-speed exhaust valve is directly connected with the top or the lateral side of the negative pressure air suction valve through threads or a flange; the negative pressure air suction valve is connected with the external infusion pipeline. According to the airbag type ventilation and drainage positive and negative pressure water hammer control valve group which is integrated and omni-directional, the structure is compact and firm, the conveying and the installation are convenient, the reliability is strong, the positive pressure water hammer can be relieved, the relief speed is high, and the water hammer of cavities collapsing due to the negative pressure can be inhibited.

The invention discloses a damping limit adjusting mechanism of a furniture side sliding door. The damping limit adjusting mechanism comprises a damping device and a fixed frame; an elastic piece is arranged between the damping device and the fixed frame; the damping device elastically slides on the fixed frame through the elastic piece; a limit adjusting device is arranged on the damping device or the fixed frame, and at least includes an adjusting element; and an acting part of the adjusting element is acted manually or through a tool, so that relative positions of the damping device and the fixed frame are changed to limit and adjust the elastic sliding travel between the damping device and the fixed frame. Through structural improvement, the damping limit adjusting mechanism has such characteristics as simple and reasonable structure, reliable performance, quick adjustment, convenience for operation, accurate positioning, strong bearing capacity, smooth opening/closing process and less force, and is strong in practicability.

The invention belongs to the field of hardware fittings of doors and windows and provides a hinge. The hinge is used for being installed on a door and window leaf and a door and window frame. The hinge comprises a gear and rack unit and an inclined draw bar. The gear and rack unit is installed on the door and window frame. A gear is installed on the door and window frame in a rotatable mode. A rack is located on one side of the gear. The gear is meshed with the rack. A gear installation portion is arranged on one side of the gear. The two ends of the inclined draw bar are installed on the door and window leaf and the door and window frame respectively. The door and window leaf can be smoothly opened and closed on the door and window frame through the gear and rack unit on the premise that the number of hinge parts is reduced, and the gear and rack unit can form a force arm outside the gear installation portion. A part of the weight of the door and window frame is borne by the gear installation portion, most gravity of the door and window can be counteracted by the force arm formed by the gear and rack unit, and therefore most of the weight of the door and window is greatly shared; in this way, the problems that an existing hinge is unreasonably stressed and prone to damage are solved.

The present invention provides a curtain plate type rolling shutter, capable of quickly processing open-close action to the decreasing mobile force application, and capable of easing the pressing against fault when the grounding part presses against the jointing object. The invention relates to the improvement of the curtain plate type rolling shutter, characterized in that the grounding part setting of the curtain plate has flexible core material having flexibility and processing elasticity deformation, the upper of the flexible core material partitioning a pressing against buffer interval shorter than the core material configuration is parallelly mounted with a counterweight core material approximately which is more weight than the flexible core material and having rigidity. And the whole length of the counterweight core material is shorter than the core material inserting in and supporting the groove and the flexible core material, the two ends of the curtain plate of the two sides of the counterweight core material of the curtain plate is provided with a side part having flexibility and supporting width of the core material, the side part in inserted in the groove to liftedly support and guide.

The invention discloses an anti-jumping stable adjusting structure for a furniture sliding door. The anti-jumping stable adjusting structure comprises a stable adjusting device, wherein the stable adjusting device comprises a fixed seat, a shifting element and an adjusting element; the shifting element and the adjusting element are arranged on the fixed seat. The anti-jumping stable adjusting structure is characterized in that rollers are arranged on the fixed seat; an acting part is arranged on the adjusting element; a tool acts on the acting part of the adjusting element; the adjusting element rotates in a positioned way, and is used for driving the rollers and the shifting element to slide upwards and downwards in a positioned way relative to the fixed seat simultaneously and/or synchronously. Through the structural improvement, the anti-jumping stable adjusting structure has the characteristics of simple and reasonable structure, reliable performance, rapidness in adjustment, convenience in operation, long service life, high connection compactness among members, silence, stability and smoothness in an opening/closing process, small force and the like, and has high practicability.

The invention belongs to the technical field related to a submersible, which discloses a buoyancy regulation system based on a two-way seawater pump, The buoyancy regulating system comprises an adjustable ballast tank, two valve groups and a two-way seawater pump, wherein the two valve groups are a first valve group and a second valve group respectively; the two-way seawater pump is formed with anI port and an II port; the first valve group is connected with the adjustable ballast tank and the I port; the second valve group is connected with the II port and is communicated with seawater; Thebuoyancy regulation system adjusts the volume of sea water in the adjustable ballast tank adaptively through the positive and negative reversal of the two-way seawater pump, thereby realizing the buoyancy regulation; the valve group includes a one-way valve and balance valve connected in parallel; The one-way balance valve comprises a valve body, a one-way valve assembly and a balance valve assembly, wherein the one-way valve assembly and the balance valve assembly are respectively embedded at opposite ends of the valve body, and the one-way valve assembly and the balance valve assembly are mutually valve seats. The invention simplifies the structure, reduces the volume, and further reduces the complexity and cost of the buoyancy regulation system of the submersible.

A hinge device capable of locking a buffer switch position comprises a movable hinge cup and a hinge joint arm, wherein the movable hinge cup and the hinge joint arm are in hinge joint connection. A buffer mechanism is arranged on the movable hinge cup, the hinge joint arm at least acts on the buffer mechanism when a hinge is closed, the buffer mechanism comprises a damper and a gland, the damper is arranged in a concave position of the movable hinge cup, the gland is arranged on the damper, and the damper can slide back and forth on the gland. A damp switch component is arranged on the gland in a rotating or swing mode, and the limiting and/or restoration of a buffering stroke of the damper are/is achieved by rotating or swinging the damp switch component when the hinge is opened and/or closed. The gland and/or the damp switch component are/is made of plastic having certain elasticity, a limiting part is arranged between the gland and the damp switch component, and the damp switch component achieves position locking and the limiting and /or the restoration of the buffering stroke of the damper through the limiting part. The hinge device capable of locking the buffer switch position has the advantages of being simple and reasonable in structure, reliable in performance, long in service life, low in manufacturing cost, fast and convenient to adjust and accurate and firm in locating.

The invention discloses a limiting mechanism used for furniture turning, pushing-pulling and opening-closing. The limiting mechanism comprises a furniture door body, a furniture cabinet body, a hingecup, a connecting arm, a hinge arm assembly, a synchronizing bar, a movable slide rail and a fixed slide rail, wherein the movable slide rail synchronously slides on the fixed slide rail through the synchronizing bar, so that the furniture door body is transversely and movably opened and/or closed and stored on the furniture cabinet body; the hinge cup is hinged and opened through the hinge arm assembly and/or closed on the connecting arm, so that the furniture door body longitudinally rotates and is opened and/or closed on the furniture cabinet body during transverse movement; a longitudinalopening, limiting and combining position is arranged among the hinge cup, and/or the connecting arm, and/or the hinge arm assembly; when the furniture door body is longitudinally and movably opened relative to the furniture cabinet body, a movable opening position between the two is limited through the longitudinal opening, limiting and combining position; a storage auxiliary limiting part is arranged on the furniture cabinet body, and/or the fixed slide rail; and the furniture door body is at least limited and transversely closed and stored on the furniture cabinet body through the storage auxiliary limiting part while transversely closed and stored to certain position.

The invention discloses an adjustable damping hovering structure of a flap-up door of furniture. The adjustable damping hovering structure comprises a fixing seat, a spring, a connecting arm assembly and a stopping and butting element. The connecting arm assembly at least comprises a first connecting arm, a second connecting arm and a middle arm; the first connecting arm and/or the second connecting arm are hinged to the fixing seat, the middle arm is hinged to the fixing seat and/or the stopping and butting element, the stopping and butting element can be opened or closed on the fixing seat under the effect of the spring, a damping hovering device is arranged on the stopping and butting element, the stopping and butting element can be hovered at any time when the damping hovering device carries out opening and closing activities outside a certain acute angle range, an adjusting assembly is arranged on a displacement element, and the displacement element can be repositioned relative to the stopping and butting element by the aid of the adjusting assembly, so that damping force of a hovering damper can be ultimately adjusted. The adjustable damping hovering structure has the advantages that the improved adjustable damping hovering structure is simple, reasonable, safe and reliable, is easy to manufacture and implement, convenient to operate, wide in service range, low in noise and high in practicality, can be quickly adjusted, can be opened and closed smoothly and is low in collision when opened and closed, and the like.

The invention discloses an elastic force manipulating structure of a tilt-up door of furniture, which comprises an upturning device, wherein the upturning device comprises a fixed seat, a hinge arm, a spring, a connecting arm assembly and an adjusting assembly which is used for adjusting the magnitude of opening and close force of the upturning device; the connecting arm assembly at least comprises a first connecting arm and a second connecting arm; one end of the first connecting arm is hinged to the fixed seat; the other end of the first connecting arm is hinged to one end of the second connecting arm; the other end of the second connecting arm is hinged to the fixed seat and/or the hinge arm; the first connecting arm and the second connecting arm are hinged by a first pin shaft; a groove is formed in the first pin shaft; one end of the spring acts on the groove; the other end of the spring acts on the second pin shaft of the adjusting assembly; the spring generates displacement relative to the fixed seat by the adjusting assembly under the effect of a tool, and finally, the magnitude adjustment of opening and closing force of the upturning device can be realized. The elastic force manipulating structure of the tilt-up door of furniture has the characteristics that the structure is simple and reasonable, the performance is reliable, the production is easy, the implementation is easy, the adjustment is rapid, the operation is convenient, the use range is wide, the opening and closing are smooth, the collision is small, the noise is low and the like.