3295results about "Building braking devices" patented technology

A furniture drive can move a furniture part movably supported relative to a furniture carcass. The furniture drive includes a housing configured to be at least partially received within a recess of a furniture panel of the furniture carcass in a mounted condition, and an actuating arm arrangement for moving the movable furniture part. A cover is provided on the housing of the furniture drive, and the cover has at least one laterally protruding, substantially hoop-shaped flange.

Hydraulic damper(1000) for furniture doors or drawers. Damper(1000) comprises housing(1) having a closed first end(14) and a second end provided with lid(7); and piston(2) movable in housing(1) along longitudinal piston axis(A). Piston(2) defines first and second chambers(11,12) inside housing(1), respectively at first and second end-sides of piston(2). Piston(2) comprises circumferential groove(24) defined between circumferential first and second shoulders(241,242). Groove(24) is provided with annular collar(5) axially movable between first and second shoulders(241,242). Collar(5) is formed from elastic material to reversibly contact inner surface(13) of housing(1) when radially expanded when subjected to hydraulic-pressure forces parallel to axis(A). First shoulder(241) is arranged allowing hydraulic fluid to flow on collar(5) when collar(5) contacts first shoulder(241). Second shoulder(242) is arranged blocking hydraulic fluid from flowing on collar(5) when collar(5) contacts second shoulder(242). Piston(2) is provided with channel(21) arranged to provide fluid flow communication between first and second chambers(11,12).

The present invention relates to a structurally novel eccentric cam action door closer for a glass door. The matching of the first and second rollers on the piston pressing assembly with the eccentric cam on the cam shaft realizes the door closer stably keeps the door in the opened or closed state. When the door is clockwise opened in place, the first roller is embedded in the first opening arc recess, thereby fixed to the eccentric cam. When the door is counterclockwise opened in place, the second roller is embedded in the second opening arc recess, thereby fixed to the eccentric cam. When the door is closed in place, the first and second rollers are embedded in the first and second closing arc recesses, thereby fixed to the eccentric cam. Thus, the cam shaft is stopped from rotating, achieving door angle fixing effect and stopping the door.

The present invention relates to a novel cam action hydraulic door closer wherein gear and rack structure is excluded, that greatly simplifies the structure and volume of the door closer. The bidirectional piston is consistently flexibly abutted against the outer peripheral surface of the transmission camshaft by the drive spring. The transmission camshaft, when working, drives the bidirectional piston to tightly press the drive spring, making it store force. Meanwhile, the overload valve realizes hydraulic oil flowing between the main shaft chamber and the spring chamber. Therefore, during the door closer housing rotates, the transmission camshaft receives the damping effect from the bidirectional piston and the hydraulic oil, lowering the transient door closing speed, so that the cam action hydraulic door closer achieves sufficient buffering when the door closes. The present invention has simple structure, convenience in assembly, high production efficiency, low failure rate and stable performance.

A hinge comprising: a first hinge member (110) comprising a cylinder barrel (117) having a longitudinal direction (118); a second hinge member (111) pivotably mounted on the first hinge member (110); and a dashpot interposed between said hinge members (110, 111) and configured for damping a closing movement of said closure member. The dashpot comprises a closed cylinder cavity formed within the cylinder barrel (117); a damper shaft (124) which extends into the cylinder cavity and is connected to the second hinge member (111); and a piston (147) within said cylinder cavity. The hinge members (110, 111) are made of a synthetic material and the damper shaft (124) is made of metal.

A damping device includes a cylinder having a damping fluid, and a piston to be actuated via a piston rod and movable through the damping fluid during a damping stroke. A flow channel allows the damping fluid to pass through the piston during the damping stroke. A control piston is mounted in / on the piston to be movable, and a cross section of the flow channel is changeable by a movement of the control piston relative to the piston. A force accumulator can move the control piston relative to the piston with a return force counteracting a flow force exerted by the damping fluid on the control piston during the damping stroke. A control aperture allows a pressure drop proportional to the flow force and the speed of the piston to occur, and a target speed for the piston is dependent on a position of the piston relative to the cylinder.

The present invention relates to a 360-degree rotational cam hydraulic door closer for a narrow frame door. The cam shaft is 360-degree rotatably supported in the door closer housing. The matching of the damping roller rotationally disposed on the bidirectional piston with left and right closing arc recesses on the outer peripheral surface of the eccentric cam keeps a closed status when the door is rotated to 0°, 180° and 360°, wherein the damping roller is embedded in the left or right closing arc recess, fixed relative to the eccentric cam, achieving door angle fixing and door stopping. The cam shaft receives the damping effect generated from the damping roller to the eccentric cam, that lowers the transient door opening and closing speed, achieving sufficient buffering. The open angle of 0°-360° is realized, which meets revolving doors' requirement, facilitating the door to be opened to both sides.

A working machine includes a machine body, tank(s) provided in the machine body and including a fluid supply port, a cover body to cover the tank, the cover body including a main wall portion and an opening provided in a portion of the main wall portion to expose the fluid supply port, a fluid supply port cover to open and close the opening, and a hinge to support the fluid supply port cover in a rotatable manner. The hinge includes an abutting portion to abut on an abutted portion at an opening peripheral edge portion that is a peripheral edge portion of the opening of the cover body or in a vicinity of the opening peripheral edge portion from an inner side of the machine body, to limit rotation in an opening direction of the fluid supply port cover when the fluid supply port cover is rotated and opened.

An actuating apparatus (1) for opening and closing a cover in or on a vehicle, having a locking and / or arresting kinematics that cooperate with the cover. The actuating apparatus includes a housing (2) and an actuating part (3) received in the housing (2) and movably supported relative to the housing (2). The actuating part (3) cooperates with the cover in such a way that the actuating part (3) performs a movement relative to the housing (2) between a first position and a second position upon a movement of the cover between a closed position and an open position, wherein, in the first position, the actuating part (3) is in a locked state. The actuating apparatus (1) further includes an elastically deformable spring system (4) associated with the actuating part (3), in particular having a progressive spring characteristic.

To provide a novel cam action hydraulic door closer particularly, in a technical field of a door closer.SOLUTION: Omitting a gear and a rack structure greatly simplifies the structure and volume of a door closer. A bidirectional piston always abuts in an elastic manner on an outer circumferential surface of a transmission camshaft through a driving spring. When the transmission camshaft operates, the bidirectional piston moves in conjunction therewith, the driving spring is compressed, and the driving spring stores force. At the same time, an overload valve realizes a circulation of hydraulic oil between a spindle chamber and a spring chamber. Therefore, when the transmission camshaft rotates in a door closer housing, the bidirectional piston is subjected to damping effect on the transmission camshaft and the damping effect of hydraulic oil. This reduces the instantaneous speed when the door is closed, and a new cam action hydraulic door closer provides a sufficient cushioning effect when the door is closed. In this way, the new cam action hydraulic door closer of the present invention has the advantages including simple structure, easy assembly, high production efficiency, low failure rate, and stable performance.SELECTED DRAWING: Figure 1

A fluid damper is provided including a cylinder filled with a damping fluid, a piston base body shiftably guided in the cylinder along a stroke axis, and a valve disk spaced apart from a shell wall of the cylinder. The piston base body divides an inner space of the cylinder into a front space and a rear space along the stroke axis. In the piston base body, there is at least one channel connecting the front space to the rear space in a fluid-conducting manner. The valve disk is shiftably guided along the stroke axis between an opening position unblocking the at least one channel and a closing position closing the at least one channel. The valve disk has a central area extending radially outward from the stroke axis, the central area being free of apertures.

The present invention belongs to the technical field of door closers, and particularly relates to an eccentric cam action door closer for a glass door, which is novel in structure. The door body of the door is installed on the housing (100). By the matching of the first roller (410) and second roller (420) equipped on the piston pressing assembly (400) with the eccentric cam (210) on the cam shaft (200), it is realized that the door closer stably keeps the door in the opened or closed state. When the door is clockwise opened in place, the first roller (410) is embedded in the first opening arc recess (240) and thereby fixed relative to the eccentric cam (210). When the door is counterclockwise opened in place, the second roller (420) is embedded in the second opening arc recess (250) and thereby fixed relative to the eccentric cam (210). When the door is closed in place, the first roller (410) and the second roller (420) are embedded in the first closing arc recess (220) and the second closing arc recess (230) respectively and thereby fixed relative to the eccentric cam (210). Thus, the cam shaft (200) is stopped from continuing rotating in the housing (100), achieving the effect of fixing the door opening and closing angle in a stuck point positioning manner, at last achieving the purpose of positionally stopping the door, that has high reliability.

The utility model discloses a sliding wheel assembly and a door and window system comprising the same. The pulley assembly includes: a housing; the first inner shell is vertically and movably connected to the outer shell; the second inner shell is vertically and movably connected to the outer shell; the first pulley is arranged in the first inner shell; the second pulley is arranged in the second inner shell, and the first pulley and the second pulley are used for sliding along the track; the damping assembly comprises a first shifting block, a second shifting block and a damping tube, the first shifting block and the second shifting block are rotationally connected to the two ends of the damping tube respectively, the first shifting block is slidably connected to the first inner shell, and the second shifting block is slidably connected to the second inner shell. Therefore, the height positions of the first shifting block, the second shifting block, the first pulley and the second pulley can be adjusted, so that the first shifting block and the second shifting block can be ensured to be stably matched with the check block in the track when the door body and the track are inclined, and the first pulley and the second pulley can be ensured to stably slide along the track.

The invention relates to the technical field of hardware fittings, in particular to a crabapple angle hinge which comprises a fixed seat fixed to the side of a cabinet body and a movable seat fixedly installed on the side of a door plank, a main hinge arm is installed on the fixed seat in a hinged mode through a first pin shaft, and the other end of the main hinge arm is connected with a first sliding block. The first sliding block slides in a first sliding groove in the movable base. A receding groove is formed in the middle of the main hinge arm in a hollowed-out mode, the receding groove is hinged to the middle of the auxiliary hinge arm through a second pin shaft, one end of the auxiliary hinge arm is hinged to the movable base through a third hinge shaft, the other end of the auxiliary hinge arm is hinged to a second sliding block, and the second sliding block slides in a second sliding groove in the fixed base. The main hinge arm and the auxiliary hinge arm swing relative to the fixed base and the movable base, and opening and closing of the hinge are achieved.

The present invention belongs to the technical field of door closers, and particularly relates to a novel cam action hydraulic door closer wherein gear and rack structure is excluded, that greatly simplifies the structure and volume of the door closer. The bidirectional piston (200) is consistently flexibly abutted against the outer peripheral surface of the transmission camshaft (300) by the drive spring (400). The transmission camshaft (300), when working, drives the bidirectional piston (200) to tightly press the drive spring (400), thereby realizing the force storing of the drive spring (400). Meanwhile, the overload valve (500) realizes hydraulic oil flowing between the main shaft chamber (111) and the spring chamber (112). Therefore, during the rotation of the door closer housing (100), the transmission camshaft (300) receives the damping effect generated from the bidirectional piston (200) to the transmission camshaft (300) and the damping effect of the hydraulic oil, that lowers the transient door closing speed, thereby realizing that the cam action hydraulic door closer achieves sufficient buffering when the door closes. It can be seen that the cam action hydraulic door closer of the present invention is simple in structure, convenient in assembly, and has the advantages of high production efficiency, low failure rate and stable performance.

The present invention relates to a door opening pressing rebounder, comprising a bracket, a pressing assembly and a swing rod that are elastically movable on the bracket, the swing rod being hinged on the bracket, a transmission mechanism being provided between the pressing assembly and the swing rod, an elastic locking device being provided between the swing rod and the transmission mechanism, the swing rod being locked on the bracket through the elastic locking device, and an elastic locking component that is locked with the swing rod being provided on the bracket; the pressing assembly drives the transmission mechanism to move by pressing, the transmission mechanism drives the elastic locking device to release the lock on the swing rod, the elastic locking component causes one end of the swing rod to be separated from the locking of the elastic locking component by pressing, so that the unlocked swing rod reacts with the elastic locking component that has been released and reset under the action of elasticity. The bracket is provided with an elastic locking component that is locked with the swing rod, even if the pressing assembly is pressed, the swing rod will not pop out of the bracket, effectively preventing the swing rod from being easily popped out of the bracket due to external forces such as vibration during transportation, and preventing the product from being damaged during transportation.

A furniture drive system includes: a support for mounting the system on a furniture carcass; an actuating arm device movably mounted on the support and to be connected to the movable furniture part; an electric motor to be connected to the actuating arm device to move sections of the actuating arm device; a drive device separate from the electric motor for exerting a force on the actuating arm device; an adjusting device for adjusting the force to be exerted by the drive device; and a control device for controlling the electric motor. The control device has a determining device for determining the force to be exerted on the actuating arm device, and the drive device has a damping device to dampen a closing movement and / or an opening movement of the actuating arm device. The determining device is designed to perform a damper analysis of the damping device.

A stowage bin assembly includes a bin bucket assembly having a bin bucket which includes at least one sidewall, the at least one sidewall including a notch and the at least one sidewall having an interior surface. The stowage bin assembly also includes at least one hinge assembly. The at least one hinge assembly includes a housing which is received in the notch, the housing having an interior surface, wherein the interior surface of the housing is substantially flush with the interior surface of the at least one sidewall when the housing of the at least one hinge assembly is received in the notch. The stowage bin assembly also includes a stowage bin door pivotably coupled to the bin bucket assembly via the at least one hinge assembly, the stowage bin door moveable between an open position and a closed position. Related components, assemblies, and devices are also provided.

The utility model discloses an automatic window opening machine, and relates to the field of window opening equipment. The automatic window opening machine comprises a box body, a driving assembly, a speed reduction chain assembly, a transmission chain assembly, an electromagnetic clutch component and a fluid damping component, the speed reduction chain assembly is jointly driven by the first driving part and the second driving part, so that the power and the cruising ability of the window opening machine are improved; during window opening work, the electromagnetic clutch component is switched to be in the state that the input end of the transmission chain assembly and the speed reduction end of the speed reduction chain assembly are connected and combined so as to implement window opening work. The acting force of transmission of the transmission chain assembly is damped by the fluid damping part, so that the force transmission effect of the transmission chain assembly is relieved, and the risk that the speed reduction chain assembly and the transmission chain assembly are damaged is reduced. According to the automatic window opening machine, buffering damping is provided for power attenuation or power reverse change through the fluid damping component, damage to a transmission structure can be reduced, the service life of the window opening machine can be prolonged, and operation stability of the window opening machine can be improved.

The utility model provides a spring steel inhaul cable assembly structure for doors and windows, and relates to the technical field of doors and windows, the spring steel inhaul cable assembly structure comprises a steel inhaul cable and an elastic assembly, one end of the steel inhaul cable is provided with a first limiting piece, and one end, far away from the first limiting piece, of the steel inhaul cable is provided with a second limiting piece; the steel inhaul cable is sleeved with the elastic combination body, one end of the elastic combination body is fixedly connected with the first limiting piece, and the end, away from the first limiting piece, of the elastic combination body is fixedly connected with the second limiting piece. According to the spring steel inhaul cable assembly structure for the door and the window, the steel inhaul cable is tightly matched with the elastic assembly, elasticity and support are provided to relieve impact of an earthquake on the door and the window, and powerful guarantee is provided for safety of a building and life safety of personnel.

A power closure actuator for powering a movable closure includes a shaft situated between an electric motor and an output member. A brake device along the shaft is configured for actuation via an electric brake actuator to apply braking. An active brake clamp is movable by the electric brake actuator. An axially floating rotor is rotatable with the shaft and has a first axial side facing the active brake clamp a second axial side providing a second braking surface. A passive backing brake clamp is positioned adjacent the second braking surface. The axially floating rotor is biased away from the passive backing brake clamp by a first biasing member. Deflection of the first biasing member coupled with axial movement of the active brake clamp and the axially floating rotor enables braking by pinching action of the axially floating rotor between the active brake clamp and the passive backing brake clamp.

The present invention belongs to the technical field of door closers, and particularly relates to a 360-degree rotational cam hydraulic door closer for a narrow frame door. The cam shaft (200) is 360-degree rotatably supported in the door closer housing (100). By the matching of the damping roller (310) rotationally disposed on the bidirectional piston (300) with the left closing arc recess (220) and the right closing arc recess (240) provided on the outer peripheral surface of the eccentric cam (210), keeping a closed status when the door is rotated to 0 degree, 180 degrees and 360 degrees is realized. In this status, the damping roller (310) is embedded in the left closing arc recess (220) or the right closing arc recess (240), thereby fixed relative to the eccentric cam (210), achieving the effect of fixing the door opening and closing angle, at last achieving the purpose of positionally stopping the door. At the same time, the cam shaft (200) receives the damping effect generated from the damping roller (310) to the eccentric cam (210) during the rotation of the door closer housing (100), that lowers the transient door opening and closing speed, thereby achieving sufficient buffering. It can be seen that the present invention realizes the open angle from 0 degree to 360 degrees, which meets the usage requirement of revolving doors, facilitating the door to be opened to both sides.

A refrigerator includes: a cabinet having a storage space; a hinge bracket coupled to the cabinet; a door which is rotatably coupled to the shaft provided at the hinge bracket and which open / close the storage space; and an automatic closing device which is provided on the door at a position spaced away from the rotational center line of the door, and which is operated together with the hinge bracket when the door is being closed to automatically close the door. The automatic closing device includes a lever and an elastic member for elastically supporting the lever, and the hinge bracket includes: a bracket body including the shaft; and a cam member which is separably coupled to the bracket body and which has a contact surface that comes in contact with the lever when the door is being closed.

A door opener includes a mount seat having a bottom wall. A reinforcing seat is fixed to the bottom wall. A driving device for opening or closing the door is detachably coupled to the reinforcing seat and includes a motor. A quick-release device includes a quick-release seat fixed to the bottom wall, a first coupling portion, a movable member slidably coupled to the quick-release seat and a movable coupling portion. A control device includes a protective housing and a control panel coupled to the protective housing. The protective housing is detachably coupled with the first coupling portion and the movable coupling portion. The driving device is selectively mounted to make the motor face or face away from the control device. An outer cover covers the driving device and the control device and includes a window in which the control panel is located.

The invention relates to a cabin door connecting rod mechanism, a cabin door assembly, an unmanned aerial vehicle garage and a vehicle, the cabin door connecting rod mechanism is used for opening and closing a cabin door installed on the unmanned aerial vehicle garage, and the cabin door connecting rod mechanism comprises a first connecting rod and a second connecting rod, the base is suitable for being rotationally connected to the base of the unmanned aerial vehicle garage through a second hinge point F; the second connecting rod is suitable for being rotationally connected to the first connecting rod through a third hinge point C; the third connecting rod is suitable for being rotationally connected to the cabin door through a fourth hinge point B and is suitable for being rotationally connected to the base through a fifth hinge point G; wherein a first virtual connecting line AF is defined as a virtual line segment connected between the first hinge point A and the second hinge point F, and the orthographic projection of the third hinge point C on the first virtual connecting line is located between the midpoint M of the first virtual connecting line and the second hinge point F.

The embodiment of the utility model provides a cup-shaped blind hinge. The cup-shaped blind hinge comprises a hinge arm, a connecting piece, a hinge cup, a damping device and an adjusting device. The connecting piece is hinged between the hinge arm and the hinge cup and comprises a first connecting piece and a second connecting piece; the damping device is slidably positioned in the hinge arm; the adjusting device is inserted into one side of the hinge arm; a tail hook is arranged on the side edge of the tail end of the second connecting piece, and the tail hook is used for rotating around the shaft and abutting against the damping device when the hinge is within the preset angle range, so that the damping device is used for reducing the opening and closing speed of the hinge. The adjusting device is used for adjusting the maximum stroke position of the damping device in the hinge arm so as to adjust the maximum damping stroke. According to the technical scheme, the maximum stroke position of the damping device in the hinge arm can be adjusted through the adjusting device, then the maximum damping stroke is adjusted, the damping angle when the hinge is closed is changed, the hinge closing time is changed accordingly, and different requirements of users for the cabinet door closing time are met.

The utility model discloses a door and window rubber strip with a buffer structure, which belongs to the technical field of building doors and windows, and comprises a rubber strip body and a bonding layer coated on the lower surface of the rubber strip body, the inner side of the rubber strip body is of a hollow structure and is provided with a buffer cavity, and the buffer cavity is provided with a buffer layer. A buffer cavity is formed in the upper surface of the rubber strip body, partitions are arranged on the inner side of the buffer cavity at equal intervals, a boss is annularly arranged on the edge of the upper surface of the rubber strip body, a plurality of energy absorption protruding blocks connected with the rubber strip body are arranged on the inner side of the boss at equal intervals, and a pressure relief groove is formed between every two adjacent energy absorption protruding blocks. The rubber strip has good energy dissipation and buffering effects on impact force generated in the door and window closing process, and large vibration caused by the resilience force generated by the rubber strip body acting on the door and window is avoided.

The present invention relates to the technical field of hinges, and discloses a damper and a damping hinge including the same, wherein the damper includes: a cylinder body, an inner chamber of which is provided; a piston, which is provided in the inner chamber and divides the inner chamber into a first chamber and a second chamber; an elastic member, which is provided in the first chamber, and the elastic member is respectively connected to the front end of the piston and the cylinder body; and a piston rod, the front end of which is provided in the second chamber and connected to the piston, and the rear end of the piston rod passes through the rear end of the cylinder body and is provided outside the cylinder body; wherein a protrusion and a groove are provided on the front end outer wall of the cylinder body with the central axis of the cylinder body as the center, and the front end outer wall of the cylinder body is uneven as a whole. The beneficial effects of the present invention are: it can effectively enhance the strength of the cylinder body and improve the service life of the damper; and it saves the internal space and service life of the damping hinge including the damper.