1192results about "Building braking devices" patented technology

A wire-rope-system includes a guide-cylinder, compression-spring, plunger and wire-rope for reducing a tailgate's opening-speed in a vehicle / trailer having a side-board-wall-or-tailgate. The guide-cylinder arranged within the sideboard-wall-or-tailgate has front-end-and-back-end-portions. The compression-spring arranged within the guide-cylinder has front-and-back-ends. The compression-spring's front-end attaches to the guide-cylinder's front-end-portion and its back-end attaches to the plunger that moves axially within the guide-cylinder. The wire-rope extends through the front-end-portion's opening, and has backend-and-front-ends attached to the plunger and the side-board-wall-or-tailgate. The plunger's slide-membrane's circumferential-edge abuts the guide-cylinder's inner-wall, separating the guide-cylinder's inner-space into a back-air-chamber between the slide-membrane's rear-side and guide-cylinder's back-end-portion, and into a front-air-chamber between the slide-membrane's front-side and guidecylinder's front-end-portion. The back-air-chamber's air-flow-regulating-opening connects to the guide-cylinder's exterior-side. The slid-membrane's configuration blocks / reduces movement towards the front-end-portion and air-flow between the front-air-chamber's circumferential-edge and the guide-cylinder's inner-wall to the back-air-chamber, damping the wire-rope's movement and reducing the tailgate's opening-speed.

A slow open hinge assembly for an associated appliance door includes an arm and a channel including a first end that is pivotally connected to the arm at a first location for pivoting about a first pivot axis. A slide link includes an inner end that is pivotally connected to the arm at a second location for pivoting about a second pivot axis that is offset from the first pivot axis. A fluid damped spring rod assembly includes a cylinder body supported on the channel and includes a spring-biased piston rod assembly engaged with the slide link. A control spring assembly can be connected to the channel and includes a reciprocally movable spring rod assembly including a follower, wherein the follower is engaged with a cam profile defined by a contoured edge of the arm for some but not all angular positions of the channel relative to the arm.

To provide a reinforcing structure for a profile that allows accessory parts to be easily fixed to the profile and the reinforcing member. [Solution] A reinforcement structure (10) for a profile includes a bottom frame (16), a reinforcement member (36), a friction stay (34), a screw (78) with a head (78a), and a screw (70) with a head (70a). A central hollow section (42) includes opposing upper and lower walls (42a and 42b). The reinforcement member (36) includes a first reinforcement wall (36a) facing the upper wall (42a) and a second reinforcement wall (36b) facing the lower wall (42b). A screw hole (74) is provided in the first reinforcement wall (36a), a screw insertion hole (76) is provided in the upper wall (42a), a screw hole (82) for fastening the screw (70), and a screw insertion hole (84) is provided in the lower wall (42b) at a position corresponding to the screw hole (82), through which a portion of the screw (70) is inserted and whose periphery is pressed by the head. The head (78a) is positioned with a gap within an area (80) surrounded by the inner circumferential surface of the screw insertion hole (76).

The utility model relates to the technical field of armrest box damping supports, and discloses an automobile armrest box damping adjustable support which comprises an armrest box connecting piece, a first installation hole is formed in the side face of the armrest box connecting piece, and through holes are formed in the front face and the back face of the armrest box connecting piece. And the rotary opening mechanism is arranged on the armrest box connecting piece, and the rotary opening mechanism is used for enabling the armrest box and the cover body to be rotationally connected. Through the integral design of the adjustable damping assembly, a user can manually rotate the rotating handle to promote the supporting pad to translate relative to the supporting block and adjust the attaching force of the damping block and the armrest box connecting piece in the maintenance process, namely the function of adjusting the damping effect of the structure is achieved; in this way, the opening speed of the cover body can be controlled, the using requirements of different users are met, through the design of the limiting assembly, the rotating handle can be attached and fixed through the second rotating disc, and the stability of the rotating handle when the rotating handle is idle is improved.

The present invention relates to an automatic door closer device comprising: a lead screw having one side hinged to a vehicle body and the other side hinged to a door; an opening / closing operation assembly that enables the lead screw to open and close the vehicle door; and a brake assembly provided in the opening / closing operation assembly and providing a predetermined pressure to the lead screw to provide a holding force.

The present invention provides a friction brake device capable of appropriately applying rotational resistance, and a vehicle door support member equipped therewith. [Solution] The brake 40 comprises a rotor pair 43 including a brake rotor 45 connectable to a first rotating element and a slip rotor 44 connectable to a second rotating element, a torsion coil spring 47 having a wound portion 47a wound around the outer circumference of the rotor pair 43, a ring member 48 surrounding the wound portion 47a, a brake case 41 rotatably housing the rotor pair 43, the torsion coil spring 47, and the ring member 48, and a friction generating element 49 non-rotatably housed in the brake case 41. When one rotor is driven to rotate, the wound portion 47a presses against the inner circumferential surface 48a of the ring member 48, and the ring member 48 rotates integrally with the rotor pair 43 and slides against the friction generating element 49. When the other rotor is driven to rotate, the wound portion 47a releases or reduces its pressure against the inner circumferential surface 48a of the ring member 48.

A retracting and extending device for sliding doors or drawers includes a housing in which at least one retracting device having a combined acceleration and deceleration device is arranged and in which at least one extending device is arranged. The retracting device and the extending device can be coupled together by means of at least one switchable axial coupling on the basis of the stroke range. A carriage includes such a retracting and extending device. A door guide rail includes a carriage inserted therein. The retracting and extending device has a second retracting device arranged in the aforementioned housing. The combined acceleration and deceleration device is both a part of the first retracting device and a part of the second retracting device. The compact retracting and extending device enables an expanded range of possible applications.

A bidirectional buffering hardware hinge comprises a base, a hinge cup, an upper connecting rod and a lower connecting rod, and the two ends of the upper connecting rod and the two ends of the lower connecting rod are hinged to the base and the hinge cup through corresponding hinge shafts respectively. A first extrusion cambered surface and a second extrusion cambered surface are arranged at the end, close to the end hinged to the hinge cup, of the upper connecting rod in the direction of the hinge cup; a slidable linkage plate is arranged in the hinge cup, and a stress end matched with the first extrusion cambered surface and the second extrusion cambered surface is arranged on the linkage plate; a buffer is arranged between the hinge cup and the linkage plate; when the upper connecting rod swings in the closing direction, the first extrusion arc face abuts against the stress end to push the linkage plate to slide and compress the buffer. When the upper connecting rod swings in the opening direction, the second extrusion arc face abuts against the stress end to push the linkage plate to slide and compress the buffer, and bidirectional buffering is achieved.

The invention relates to a brake 1, 31 for braking a relative movement between two components 3, 6, in particular a first component 3 is a flap, for example a door of a motor vehicle, and a second component 6 is a chassis component, for example a pillar of a motor vehicle, to which the flap is hinged, the brake 1, 31 comprising:-a support section 10, 11, 38 for supporting the brake 1, 31 on the first component 3, and-a braking device 15, 35 for braking the brake lever 4, 34 connected to the second part 6 by means of a braking force 8 directed in the direction of the brake lever 4, 34.

The invention relates to a hinge assembly designed to prevent uncontrolled slamming of cabinet doors.

This utility model discloses an improved automotive door hinge assembly, including a fixed hinge, an opening hinge, an elastic element, and a pivot. The fixed hinge has a connecting seat, the opening hinge has a connecting arm, and the pivot is located at the connection between the connecting arm and the connecting seat. The fixed hinge has a limiting element that restricts the rotation angle of the opening hinge, and the limiting element includes a connecting rod. The connecting seat has an arc-shaped groove that slides with the connecting rod. The beneficial effects are as follows: When the protrusion of the sliding block slides with the groove, a large force is required to make the relative displacement between the sliding block and the damping block occur because the sliding block and the damping block are tightly engaged. When the sliding block and the damping block are disengaged, the resistance experienced by the sliding block is reduced, so the sliding of the sliding block in the sliding cavity is smoother. This application achieves that the resistance is large when the car door is first opened, and the resistance decreases when the car door is opened to a certain angle.

The utility model provides an electric hinge and an electric door and a steaming oven comprising the electric hinge, the electric hinge comprises a transmission assembly, the transmission assembly comprises a first connecting rod and a second connecting rod, the electric hinge further comprises a flexible connecting part, the first connecting rod and the second connecting rod are connected through the flexible connecting part, and the first connecting rod is connected with the second connecting rod through the flexible connecting part. The electric hinge further comprises a damping part, one end of the damping part is arranged on a support of the electric hinge, an output shaft of the damping part is hinged to the second connecting rod, and when the electric hinge is locked, the output shaft of the damping part provides resistance larger than reset elastic force of the electric hinge. And the resistance is smaller than the reset pulling force of the electric hinge. According to the electric hinge, the damping part is arranged and used for absorbing kinetic energy of the second connecting rod, so that the second connecting rod and the first connecting rod cannot directly abut against each other, and the situations of pause, collision and abnormal sound occurring in the door closing process of a door body connected with the electric hinge are reduced.

This utility model provides a novel sliding rail-type air-raid shelter door, relating to the technical field of air-raid shelter door equipment. It includes a fixed base plate, on the top of which are installed a first security wall and a second security wall. By setting up the fixed base plate, the first security wall, and a limiting mechanism, and using auxiliary lighting with a lamp, it facilitates nighttime operations. The second limiting frame contains an installation clamp plate and a limiting roller of the same structure. The limiting roller limits the sliding trajectory of the air-raid shelter door. A third positioning bolt positions the installation sleeve plate and the movable slider, ensuring that when the air-raid shelter door slides, it drives the fixed block to slide to one side. With the connection of the connecting rod, the movable slider slides outside the installation frame, the limiting roller rolls on one side of the installation frame, and the movable slide plate slides inside the positioning frame. This achieves normal security while facilitating remote monitoring of the site. Multiple limiting sliding mechanisms prevent excessive speed during sliding, thus avoiding safety hazards, and also facilitate subsequent normal resetting.

The utility model discloses a heavy buffering door closer which comprises a shell, a cavity, a rack and a hook part. A mounting groove is formed in the shell, and a top cover is arranged at the top of the shell; the cavity is formed in the shell and located on one side of the mounting groove, and a buffer is arranged in the cavity; the buffer has the advantages that the transmission gear set drives the rack and the drag hook to control the buffer to be opened and closed, the stable buffering effect can be provided in the door opening and closing process, when the door is closed, the door can be automatically, slowly and stably closed from 80 degrees, and large impact force generated when the door is rapidly closed is avoided; the maximum door opening angle of the product is limited to be 94 degrees, and the door can be freely stopped between 85 degrees and 94 degrees, so that the design can meet the use requirements of daily passage and the like; the whole transmission structure is more stable through the fact that a positioning pin connected in the shell penetrates through a plurality of driven gears, a positioning block of a driving gear is matched with a positioning part of the shell, the sliding connection effect of a tooth groove on a rack is achieved, and the like.

The utility model relates to the technical field of intelligent fingerprint locks, in particular to a sliding cover assembly of an intelligent fingerprint lock, which comprises a sliding cover main body, the sliding cover further comprises a sliding rail, an elastic piece, a sliding cover accessory and an auxiliary structure, the sliding rail is fixed to the inner side of the sliding cover body, and the elastic piece is arranged on the inner side of the sliding cover body. Smooth and flat surfaces are guaranteed by the aid of the sliding rails and the guide strips which are manufactured by means of polishing, so that friction and noise between the sliding rails and the guide strips are reduced, abrasion of the sliding cover and the lock body can be effectively avoided by the aid of the first protection strip and the second protection strip, the service life of the fingerprint lock is prolonged, and the fingerprint lock is convenient to use. According to the lock, the sliding cover accessory is arranged, the auxiliary structures are arranged on the two sides of the sliding cover accessory, multi-stage buffering is formed through cooperation of the elastic protection pad and the multiple sets of springs, and therefore impact force and noise generated by collision are greatly reduced, the durability of the lock is further improved, the noise level is further reduced, and then the lock can provide quiet and convenient use experience for a user.

The utility model relates to the technical field of iron art doors, and discloses a household courtyard double-opening baking varnish iron art door which comprises stand columns, door bodies are rotationally connected to the adjacent sides of the two stand columns, mounting plates are fixedly connected to the lower portions of the two door bodies, and mounting grooves are formed in the front sides of the mounting plates. Two limiting blocks are fixedly connected to each of the two sides in the mounting groove, a flower piece plate is arranged in the mounting groove, two limiting grooves are formed in each of the two sides of the flower piece plate, inserting holes are formed in the tops and the bottoms of the two sides of the flower piece plate, and telescopic grooves are formed in the upper portions and the lower portions of the two sides in the mounting groove. A pull rod penetrates through and is slidably connected into the telescopic groove, and the outward end of the pull rod penetrates through and extends out of the mounting plate. According to the anti-collision door, the buffering base, the sliding groove, the sliding block, the movable rod, the connecting rod, the anti-collision block, the spring damper, the connecting block and the screw are matched to work, and when the anti-collision block collides with a wall body, the anti-collision assembly plays a role in protecting the door body and reducing the collision impact force between the anti-collision assembly and the wall body.

The utility model provides a civil air defense construction door which comprises a door leaf arranged in a rotatable mode and a push-pull mechanism used for pulling the door leaf, and the push-pull mechanism comprises an adjusting rail piece fixedly installed on a wall body, a sliding seat adjustably arranged on the adjusting rail piece and a pull rod installed on the sliding seat in a rotatable mode. The side, away from the sliding base, of the pull rod is rotationally installed on a support, and the support is fixedly arranged on the door leaf. According to the device, the door leaf is rotationally connected with the sliding seat through the pull rod, when the door leaf is opened, the sliding seat can gradually move forwards, the second clamping teeth elastically move and are sequentially clamped with the first clamping teeth in a matched mode, so that the sliding seat is prevented from moving backwards, the stability of the door leaf in the opening state is guaranteed, movement caused by collision or airflow driving is avoided, and it is guaranteed that people go out conveniently. The door leaf can be parallel to the wall body in the open state, in the forward moving process of the sliding base, the hand rod can be gradually pushed to stretch out of the inner groove space between the door leaf and the wall body, and personnel can conveniently pull the door leaf.

The utility model relates to the technical field of adjusting support, concretely to a high airtightness civil air defence door device. The utility model discloses door frame and door leaf, the inside of door leaf is equipped with adjusting device, the adjusting device includes flange bearing and two racks, the circular arc surface of flange bearing is fixedly connected with door leaf, the inboard fixedly connected with the shaft of flange bearing, one end fixedly connected with the gear of the shaft, the outside of gear is engaged with two racks, one end fixedly connected with the connecting plate of rack, one end fixedly connected with the moving plate of connecting plate, one side of two moving plates is connected with door leaf slidingly. The traditional high airtightness civil air defence door device basically adopts single point locking structure, when single point locking, impact force (such as explosion shock wave) concentrates on single locking point, causes door leaf to bear non-uniform load, and the problem that partial door leaf is easily caused to be recessed or locking point welding place fatigue fracture.

Door drive (1), in particular a door closer, with hydraulic damping, in particular for a fire door, wherein the door drive (1) comprises: a housing (3) with a housing interior in which a hydraulic fluid is provided, a functional element (7, 9) which is inserted into an opening (5) of the housing (3), and a sealing element (11) which seals the housing (3) to the outside in the area of ​​the opening (5), wherein the sealing element (11) consists at least partially of a material which has a defined melting temperature, characterized in that that the sealing element (11) is a sealing ring, that the functional element (7) comprises a circumferential outer groove (13) which receives the sealing element (11), and that the outer groove (13) of the functional element (7) has an outwardly directed support surface (15) with at least one recess (17) which acts as a flow contour for the hydraulic fluid.

The invention discloses a buffering hinge capable of buffering when being opened and closed, which comprises a hinge cup and a hinge arm, and a rocker arm assembly is arranged between the hinge cup and the hinge arm to realize hinged opening and closing; a groove is formed in the hinge cup, and the groove is configured to contain at least part of the rocker arm assembly when the hinge cup is closed; the rocker arm assembly comprises an outer rocker arm, a transmission shaft penetrates through one end of the outer rocker arm, and the two ends of the transmission shaft penetrate out of the two side walls of the groove respectively to form a first extending part and a second extending part. In addition, the hinge further comprises a first buffering assembly and a second buffering assembly which are arranged on the hinge cup and arranged on the two outer side portions of the groove respectively, the first extending part is used for being in transmission fit with the first buffering assembly, and the second extending part is used for being in transmission fit with the second buffering assembly. Thus, the transmission shaft is arranged on the outer rocker arm in a penetrating mode to drive the first buffering assembly and the second buffering assembly to act, the structure is simple, the number of needed parts is small, installation is easy, and practicability is high.

The invention relates to an adjustment device (14) for a movable element (12) with at least one adjustment element (16, 18) pivotally connected to the element (12) for adjusting it, wherein the at least one adjustment element (16) comprises at least one spring element (24) and two guide elements (26, 28) that are telescopically extendable relative to each other. According to the invention, one or more absorption elements (76, 78) are provided, which are designed to absorb the kinetic energy of the adjustment element (16) in the event of an overload, in particular an overload occurring at an end stop. The invention further relates to an arrangement (10) with a movable element (12) and an adjustment device (14) associated with the movable element (12).

A door closer comprising a hydraulic damping assembly in which an adjuster, for adjusting a damping action of the hydraulic assembly in a door closing motion, is located at one end of a fluid-filled chamber. The adjuster comprises a head part comprising first and second members assembled together with an elongate adjuster bore extending through the first and second member. The elongate adjuster bore comprises an annular recess containing an annular lip seal member. A rotatable elongate valve member is received within the elongate adjuster bore. The rotatable elongate valve member comprises a sealable portion which extends through, and is sealingly engaged by, the annular lip seal member. A needle valve element extends along a restrictor valve region of the elongate adjuster bore. Rotation of the rotatable valve member is configured to adjust a maximum rate of hydraulic fluid flow between first and second chambers of the hydraulic damping assembly.

A hinge for the controlled movement of a closing element, for example a door, a door leaf or the like, anchored to a stationary support structure, for example a frame or counter-frame or a floor. The hinge comprises a hinge body (10) and a pivot (20) which coaxially and rotationally coupled to each other to mutually rotate around an axis (X) between an open position and a closed position of the closing element. The hinge body (10) internally includes a working chamber (11) which comprises at least one first and one second actuator element (50, 60) which are mutually in contact with each other and elastic counteracting means (17). The first and the second actuator element (50, 60) are mutually coupled to each other and integrally joined respectively to the one and to the other hinge body (10) and pivot (20) to mutually move away along the axis (X) upon the mutual rotation of the latter to load the elastic counteracting means (17).

The utility model belongs to the technical field of door and window opening and closing, and discloses a door and window opening and closing angle limiting and buffering device which comprises a door and window frame, a door and window body is hinged to the surface of the door and window frame through hinges, an angle limiting assembly is installed on the surface of the door and window frame, and the angle limiting assembly comprises a hinge rod. A hinge rod is hinged to the bottom of the door and window body, an adjusting block is arranged on the surface of the door and window frame, one end of the hinge rod is hinged to the adjusting block, a receding groove matched with the adjusting block is formed in the surface of the door and window body, and the adjusting block is slidably connected into the receding groove. The door and window has the advantages that the opening and closing angle of the door and window can be effectively limited, safety accidents caused by out-of-control angle due to the fact that the door and window cannot be limited after being opened and closed are avoided, buffering treatment can be carried out during opening and closing, and the service life of the door and window is prolonged.

The present application discloses a door lock device and a cooking appliance. The door lock device of the present application is configured to lock a door body and a housing of the cooking appliance. The door lock device comprises an engagement member and a locking assembly. The engagement member is configured to be mounted on the door body, and the engagement member comprises a first engagement portion. The locking assembly comprises a holder, a first locking mechanism, a driven member, and a first microswitch. The holder is configured to be mounted on the housing. The driven member and the first locking mechanism are both movably connected to the holder. The first microswitch is provided on the holder. The first locking mechanism is provided with a first engagement groove, and the holder is provided with an engagement end. The first engagement portion has a first locked state in which the first engagement portion enters from the engagement end to be engaged with the first engagement groove. When an abnormal engagement occurs between the first engagement portion and the first engagement groove and the first engagement portion does not enter the first engagement groove, as the first engagement portion and a first abutting portion are in a separated state, a probability that the driven member is driven by the first engagement portion to trigger the first microswitch is reduced, thereby reducing a probability of erroneous triggering of the first microswitch.

The utility model discloses a close door with damping buffer, including main body casing, the main body casing is connected with base through connecting rod, the piston is slidably connected in the main body casing inner chamber, the piston engages and connects gear, is provided with the spring between piston and main body casing inner wall, one -way valve is installed in both ends of the piston, the main body casing inner chamber is divided into three cavities by the piston, relate to the technical field of close door, through setting up the piston in the main body casing, the piston divides the main body casing inner chamber into three cavities, and sets up one -way valve at both ends of the piston, and left -hand chamber is provided with hydraulic oil, thereby when opening the door board, at this moment under the damping effect of hydraulic oil, avoid the quick opening of door board and hit the wall, simultaneously when spring drive piston resets, the hydraulic oil reduces the speed of piston reset, thereby reduce the intensity of door board and hit the door frame, thereby weaken the noise.

The invention relates to a monitoring system (100) comprising a door closer (1) for closing a door (200), with a housing (2) and an output shaft (3) mounted therein, designed for attaching a lever arrangement (103), with a mechanical energy storage device (4) in the housing (2) which acts the output shaft (3) to rotate in a closing direction (12), wherein the energy storage device (4) is preferably designed as a spring, wherein the output shaft (3) is rotatable into a first angular range (8) usable for opening and closing the door (200) and into a second angular range (9), with a sensor unit (20) for detecting an actual rotation angle (11) which depends on the rotation angle of the output shaft (3), and an evaluation unit (101), wherein the evaluation unit (101) is designed to generate a message when the actual rotation angle (11) lies in the second angular range (9).