263 results about "Fixed hinge" patented technology

The invention discloses a roller screw external thread grinding force measuring method. The method comprises the steps that a to-be-measured screw is installed on an external thread grinding machine tool in the mode that the to-be-measured screw is clamped by tips at the two ends of the machine tool; the two mechanical sensors are installed at the center position right facing the lead screw to be measured and face the normal grinding force direction and the tangential grinding force direction respectively; a to-be-measured lead screw clamped by double tips is regarded as a simply supported beam structure of which one end is fixed and hinged and the other end is movable and hinged, a mechanical sensor is regarded as an elastic support, a mechanical model is established, and the relationship among the measurement result of the mechanical sensor, an actual method and tangential grinding force at different grinding positions is obtained; and according to the measurement result of the mechanical sensor, the actual method and the tangential grinding force are obtained by utilizing the relation between the measurement result of the mechanical sensor at different grinding positions and the actual method and the tangential grinding force, and the actual grinding force is obtained after vector superposition. The device has the characteristics of clear and definite measurement principle, accurate and reliable measurement result, simple structure and convenience in assembly.

The utility model discloses a shallow sea seaweed planting platform and relates to the technical field of marine ecological restoration. Comprising a traction ship, an offshore platform, a mesh belt reel, a seed mesh belt, compression rollers, degradable nails and supporting rods. The traction ship is connected with the offshore platform and can drive the offshore platform to move; the mesh belt reel is fixedly mounted on the offshore platform, the seed mesh belt is wound on the mesh belt reel, and the degradable nails are used for fixing one end of the seed mesh belt on the seabed in a needle pricking manner; one end of each supporting rod is in hinged connection with the offshore platform through a fixed hinge point, so that the supporting rods can rotate around the corresponding hinge points, the supporting rods rotate in a plane, and the net belt reel and the rotating plane are coplanar; and a compression roller is arranged at the other end of the supporting rod and can rotate on the corresponding end point of the supporting rod. The planting efficiency is improved, manual operation is partially replaced, and the operation process is simplified.

The invention relates to the technical field of hinge assembly, and discloses a hinge assembly system and process, and the hinge assembly system comprises a first jig, a second jig, a third jig and a fourth jig. The first jig is provided with a lower-layer clamping mechanism and an upper-layer clamping mechanism and is used for clamping a hinge part; the second jig is provided with a first clamping mechanism and a second clamping mechanism which are arranged in a sliding mode and used for clamping and assembling the hinge. The third jig is provided with an inclined pushing mechanism and a side pushing mechanism and is used for positioning and turning over the product; the fourth jig is provided with an inclined pushing mechanism and an upper pressing plate, and the first jig, the second jig, the third jig and the fourth jig are sequentially distributed according to the assembly sequence. The assembling technology comprises the steps that the hinge products are clamped, assembled, positioned and fixed in sequence through the jigs, and finally the final assembly of the hinge is completed in the reserved space through the mechanical arm. All the steps are independent and cooperate with one another, automatic assembly of the hinge is achieved, manual intervention is reduced, and the assembly efficiency and precision are improved.

Provided relates to a hinge-type connector for connecting one-touch folding tent frame members that comprise: at least 4 base frame members and at least 2 frame members on the free end of each base frame that is connected in a line by a hinge-type connector; a spring that presses the sleeve toward the locking direction of the fixed hinge and a spring seat for supporting the lower end of the spring.

The utility model discloses a working face belt conveyor telescopic conveying device which comprises a plurality of belt telescopic devices, a guide rail pushing device and a machine body traction device and is connected with two parallel bearing guide rails through lifting oil cylinders, idler wheels and guide rail hydraulic clamping devices. Adjacent fuselage telescopic devices are connected and fixed through multiple pairs of telescopic hinges, the number of the hinges is adjustable, and different telescopic distance requirements are met. The belt telescopic device is provided with an upper carrier roller assembly, a lower carrier roller assembly, and an oil cylinder, a roller and a guide rail hydraulic clamp which are used for the guide rail pushing device; the guide rail pushing device comprises a pushing oil cylinder, a pushing oil cylinder sliding end, a bearing guide rail and a guide rail hydraulic clamping device. The machine body traction device is mainly composed of a traction mechanism connecting frame, a hydraulic motor, a traction roller, a traction rope and the like and used for unfolding the belt conveyor folding machine body.

The invention provides a charging port cover and a vehicle, and relates to the technical field of vehicle charging port covers. The charging port cover comprises a base which is fixed on a vehicle body and is provided with a peripheral port; the outer plate rotates relative to the base, and the outer plate is configured to cover and expose the base on the vehicle body; the hinge arm is rotationally connected with the base and fixed to the outer plate, and the hinge arm comprises a connecting part rotationally connected with the base; the main body part is fixed with the connecting part, and when the outer plate covers the base, the main body part is inserted into the peripheral opening; the soft rubber part is arranged on the periphery, close to the outer plate side, of the main body part, and when the outer plate covers the base, the soft rubber part abuts against the peripheral side of the peripheral opening; the soft rubber part abuts against the outer plate in an interference mode, and a drainage groove surrounding the main body part by a circle is formed between the soft rubber part and the outer plate. The soft rubber part abuts against the outer plate in an interference mode, water flow is blocked on the outer side of the soft rubber part, in other words, water cannot enter the main body part through the gap between the outer plate and the main body part, and therefore water absorption deformation of the main body part is effectively reduced.

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 auxiliary support comprises a bottom plate, one end in the bottom plate is rotationally connected with a fixed hinge shaft, the two sides of the fixed hinge shaft are hinged to one ends of movable connecting rods respectively, and the other ends of the movable connecting rods are rotationally connected with the two ends of a movable hinge shaft respectively. The middle of the supporting shaft is fixedly connected with a connecting base, one end of the connecting base is fixedly connected with one end of a threaded rod, and the other end of the threaded rod is connected with one end of an inner threaded cylinder in a sleeved mode through a threaded structure. The other end of the internal thread cylinder is rotationally connected with a clamping block, the clamping block is clamped and matched with a clamping groove, and the clamping groove is concavely formed in the middle of the top surface of the bottom plate; sliding openings are formed in the two sides of the bottom plate respectively, adjusting bases are slidably arranged in the sliding openings, one ends of the adjusting bases are hinged to one ends of supporting connecting rods, and the other ends of the supporting connecting rods are hinged to one sides of movable connecting rods respectively.

The utility model discloses a hinge mechanism for a window and a ship window, which comprises a fixed hinge seat and a movable hinge plate, the fixed hinge seat is fixedly connected with a window frame, the movable hinge plate is fixedly connected with a window leaf, the movable hinge plate is rotatably connected to the fixed hinge seat through a pin shaft, and the hinge mechanism also comprises a locking assembly, the locking assembly is used for achieving locking of the window sash. Compared with the prior art, through the arrangement of the locking assembly, the window sash can be effectively locked, the situation that the window sash is blown by wind to be collided and damaged is avoided, the structure is simple, and operation is convenient.

This utility model relates to the technical field of vehicle protection devices, specifically disclosing a folding bracket for a protective grille. It includes fixed hinges, a locking mechanism, a folding post, and a folding crossbeam. Several fixed hinges are fixedly installed on the vehicle body surface, with a locking mechanism hinged to each hinge. A folding post is installed on the locking mechanism, and a folding crossbeam is provided above the folding post, hinged to the folding post. By providing the locking mechanism and fixed hinges, the protective grille can be folded down when needed by the folding action of the folding post, thereby lowering the position of the folding crossbeam and the protective grille on it. The folding post and locking mechanism are connected by a socket joint, allowing for quick replacement if the folding post, folding crossbeam, or protective grille is damaged.

The utility model relates to a tension test device for detecting the bonding strength of a concrete block. The utility model is suitable for the technical field of tension test equipment. The technical problem to be solved by the utility model is to provide the tension test device for detecting the bonding strength of the concrete block. According to the technical scheme, the tension test device for detecting the bonding strength of the concrete block comprises a support, a tension test device and a tension test device, the horizontal hydraulic cylinder is arranged on the support, the output end of the horizontal hydraulic cylinder is connected with a lifting lug through a lifting shaft, and the horizontal hydraulic cylinder is connected with a first test concrete block through the lifting lug; the fixed hinged support is arranged on the support, the fixed hinged support is connected with the lifting lug through the lifting shaft, the fixed hinged support is connected with a second test concrete block through the lifting lug, and the first test concrete block and the second test concrete block are bonded through a binder; the control cabinet is arranged on the adjacent side of the support and used for controlling opening and closing of the horizontal hydraulic cylinder.

The utility model relates to the technical field of mobile phone supports, in particular to a magnetic type card-carrying mobile phone support, which mainly solves the problem that a mobile phone support sleeve in the prior art is too thick and single in function, and is provided with a support body consisting of a supporting hinge and a fixed hinge, the top ends of the supporting hinge and the fixed hinge are connected through any stop hinge, and the fixed hinge can be adsorbed on the back of a mobile phone. The support page can be turned over to be away from the fixed page and suspended, and forms an eave structure capable of supporting a mobile phone to obliquely stand on a horizontal plane with the fixed page, thereby playing a role of a mobile phone support, not sacrificing the holding hand feeling of the mobile phone, enriching the functions of the support body, and being provided with a card carrying bag which can be used for containing cards, thereby being convenient to use. The mirror surface layer can provide a cosmetic mirror for a female user, and has the advantages of simple and fast installation, good mobile phone supporting effect, comfortable holding hand feeling, rich functions and capability of identifying true and false.

A refrigerator door mountable for swinging movement between opened and closed positions at the front opening of a refrigerator cabinet by a left-side hinge and a right-side hinge. A left-side handle is associated with the left-side hinge and may be manipulated to release a hinge catch to free a hinge pin of the left-side hinge from a captured condition to allow a left-hand swing opening and closing of the refrigerator door about a hinge pin of the right-side hinge while in a captured condition. A right-side handle is associated with the right-side hinge and is manipulable to release a hinge catch to free the hinge pin of the right-side hinge from a captured condition to allow a right-hand swing opening and closing of the refrigerator door about the hinge pin of the left-side hinge while in a captured condition. A removable hinge block may be positioned to place the hinge pin of the right-side hinge in the captured condition to allow the left-hand swing opening and closing of the refrigerator door or may alternatively be positioned to place the hinge pin of the left-side hinge in the captured condition to allow the right-hand swing opening and closing of the refrigerator door.

The water-rich tunnel water inflow dynamic monitoring device comprises a water guide pipe, a supporting rod and a horizontal rod, a fixed hinge shaft is arranged on the pipe wall of the water outlet end of the water guide pipe, the first end of the supporting rod is hinged to the water guide pipe through the fixed hinge shaft, and the first end of the supporting rod is further fixedly connected with an angle measuring scale. A sliding groove is formed in the supporting rod in the length direction, a sliding hinge shaft is connected into the sliding groove in a sliding mode, and one end of the horizontal rod is hinged to the supporting rod through the sliding hinge shaft. When the water inflow of different positions is monitored, the angle of the water guide pipe can be flexibly adjusted, the adjusted angle can be directly read through the angle measuring scale, the device can be rapidly suitable for monitoring the water inflow of drill holes in different positions in a tunnel, especially the water inflow which is difficult to measure such as non-horizontal drill holes, the water inflow is dynamically monitored in real time, the flexibility is high, and the measurement accuracy is high. Operation is simple, and the application range is wide.

A folding sliding door system is applied to a cabinet body with an opening, an upper guide rail is installed at the top of the opening of the cabinet body, and the system comprises a first door body, a second door body and a sliding door, one side of the second door body is connected with the other side of the first door body through a hinge in a swinging mode, and the guide pulley block is installed on the top of the other side of the second door body and connected with the upper guide rail in a sliding mode. The sliding type sliding door has the beneficial effects that the advantages of two opening and closing modes of a sliding door and a sliding type sliding door are combined. By means of the linkage mode of folding first and then sliding, the opening of the whole cabinet body can be completely exposed, and the full-opening effect of the cabinet door is achieved. According to the core advantage, the problem that the opening degree of a traditional sliding door is limited is thoroughly solved, a user does not need to be limited by half or less opening width any more, and objects, including large objects, at any position in the cabinet can be easily stored and taken out without obstacles.

The utility model relates to the technical field of electronic sphygmomanometers, in particular to a rotating shaft structure for an electronic sphygmomanometer, which comprises a base, a rotating shaft component and a movable component, a hinge groove is arranged on one side of the base, hinge mounting tables are arranged on two sides of the hinge groove, and the rotating shaft component comprises a fixed hinge, a movable hinge and a damping rotating shaft. The fixed hinge is connected with the movable hinge through a damping rotating shaft, and the fixed hinge is arranged on the hinge mounting table; the movable assembly comprises a movable shell and a movable connecting base, the movable shell is provided with a rotating shaft connecting table, one end of the movable connecting base is connected with the movable hinge, and the other end of the movable connecting base is connected with the rotating shaft connecting table. Multiple technical effects of stable supporting, stable movement, accurate control, high flexibility, high stability and the like are achieved.

An automatic flip-top device for a rolled sample bar insulation box is used to automatically flip the insulation box of the rolled sample bar at the sampling station of the bar rolling production line. The device includes a fixed hinge motor (1), a dual output shaft reducer (2), a first connecting rod (3), a power mounting base (4), a movable hinge motor (5), a reducer (6), a clutch (7), a joint shaft (8), a second connecting rod (9), an electromagnet mounting base (10), and an electromagnet (11). The beneficial technical effects of the automatic flip-top device for a rolled sample bar insulation box of the present invention include: (1) By energizing and de-energizing the clutch, the joint can be switched between an active joint and a passive compliant joint, so that the flip-top device has better adaptability to the size and placement error of different insulation boxes, and the flip-top action is more stable and smooth; (2) The entire flip-top device can be folded and stored to reduce space occupation when waiting for work or when idle.

The invention discloses a broadband piezoelectric energy harvesting system based on multi-frequency cooperative resonance and a power generation method. The system comprises a fixed support, a main resonance subsystem and at least two secondary resonance subsystems. The main resonance subsystem comprises a main elastic beam component and a first piezoelectric conversion element fixedly coupled to the main elastic beam component; each secondary resonance subsystem comprises a secondary elastic beam member and a second piezoelectric conversion element fixedly coupled to the secondary elastic beam member. The near end of the main resonance subsystem is connected to the fixed support through a fixed hinge; the near ends of the sub-resonance subsystems are connected to the fixed support in parallel through movable hinges. The far end of the secondary resonance subsystem can be selectively connected to the fixed support through a fixed hinge or a movable hinge. And the main resonance subsystem and each secondary resonance subsystem are independently configured with inherent frequencies to form a multi-frequency-point resonance structure. Through the main-secondary multi-frequency-point parallel cooperative resonance design, the system can effectively respond under wide-spectrum fluid excitation, and the working frequency band range of energy capture is remarkably widened.

A push-pull folding cabinet door system comprises a cabinet body, the front end of the cabinet body is provided with an opening, the top of the opening is provided with an upper hanger rail, and the bottom of the opening is provided with a lower guide rail; one side of the first door body is mounted on the cabinet body through a fixed hinge, so that the first door body can swing to be opened and closed relative to the cabinet body; the other side of the first door body is connected with one side of the second door body through a hinge, and the first door body and the second door body can swing relative to each other and be folded to open the cabinet door. The top of the other side of the second door body is provided with a hanging door pulley block connected with the upper hanging rail, and the bottom of the other side of the second door body is provided with a guide pulley block connected with the lower guide rail. The beneficial effect of the invention is that the full-open effect of the cabinet door is realized. The problem that the opening degree of a traditional sliding door is limited is thoroughly solved, a user can easily store and take articles at any position in the cabinet without obstacles, and the utilization efficiency of the space in the cabinet and the taking and taking convenience are greatly improved.

The invention provides an adjustable optical aiming auxiliary device for a geological compass, which comprises a fixed seat, a movable seat is movably mounted at the top of the fixed seat, the movable seat is hinged to the fixed seat through a fixed hinge, fixed rods are fixed at the top of the movable seat, a movable block is movably mounted between the fixed rods, and the movable block is hinged to the fixed seat through a fixed hinge. A movable plate is movably mounted at one end of the movable block, a fixing groove is formed in one end of the movable plate, a fixing block is rotatably mounted in the fixing groove, and a mounting plate is welded to one end of the fixing block. When the device is used, the movable plate moves through the fixed block, the mounting plate is rotated after the movable plate moves, the aiming mechanism is mounted in the mounting hole after the mounting plate is rotated, the aiming mechanism and the marking arrow are vertically distributed in the same circle center straight line, and long-distance measurement is achieved through the aiming mechanism; and the limiting columns are matched with the mounting holes to realize limiting and fixing between the movable seat and the fixed seat.

The present application relates to a kind of large-scale icebreaking structure model with floating ice simulation test device, including base platform, several pressurizing mechanisms are fixed with interval on the top of base platform, pressure is applied to typical icebreaking structure by pressurizing mechanism;The structure of single pressurizing mechanism is as follows: including electro-hydraulic servo loading actuator, the output end of electro-hydraulic servo loading actuator is connected with the working end surface of input pressure head, input pressure head is rotatably installed with the one end of lever beam, the other end of lever beam is rotatably installed with output pressure head, the working end surface of output pressure head is fixed with the top end surface of distribution beam, the two ends of distribution beam bottom end surface are respectively matched with fixed hinge support and sliding support installation.Can be used to simulate the stress state of typical icebreaking structure of underwater vehicle under the condition of floating ice, collect the strain response data and deformation response data of typical icebreaking structure under the action of distributed ice load, obtain the ultimate bearing capacity failure pressure and failure mode of typical icebreaking structure.

The utility model relates to the technical field of logistics equipment, in particular to a code scanning frame for counting of an ERP inventory system, which comprises a base, a host, a rotating plate and a sleeve plate, a support is connected onto the base, a supporting table is horizontally connected onto the support and above the base, a weighing table is mounted at the top of the supporting table, and the rotating plate and the sleeve plate are arranged on the base. The top of the support is provided with a code scanning camera corresponding to the weighing platform, the code scanning camera and the weighing platform are both in communication connection with the host, a plurality of fixed hinge lugs are arranged at the front end of the supporting platform in the left-right direction, and the fixed hinge lugs are arranged close to the front side edge of the weighing platform. One side of the rotating plate is fixedly connected with a plurality of movable hinge lugs, the plurality of fixed hinge lugs are respectively hinged with the plurality of movable hinge lugs, and the sleeve plate is sleeved on the periphery of the rotating plate in a sliding mode. According to the utility model, the conventional code scanning weighing machine is improved, heavy objects are convenient to push, and the occupied area is not increased.

A multi-level adjustment bottom box structure used in office chairs includes a base, a rocker component for connecting to a chair back frame, and a support plate component for connecting to a chair seat frame. The base is provided with a reset mechanism for elastically resetting the chair back after the inclination angle is adjusted, and a locking mechanism for locking the chair back in the adjusted position. The reset mechanism and the locking mechanism both cooperate with the support plate component. The bottom box structure of the present invention hinges the rear end of the base and the rear end of the support plate component to the rocker component, so that the base, the rocker component and the support plate component are hinged to form a movable component that can be flipped open and closed, which facilitates the installation of the reset mechanism and the locking mechanism, and can be installed without disassembling the fixed hinge shaft and the movable hinge shaft. It has a simple structure, is easy to install, and has good industrial development prospects.

The adjustable door and window hinge comprises a fixed hinge, a movable hinge is arranged at the top of the fixed hinge, a rotating assembly used for rotating the movable hinge is arranged on the side, opposite to the movable hinge, of the fixed hinge, and a sliding block is hinged to the bottom of the movable hinge. A limiting piece used for limiting the moving direction of the sliding block is arranged at the joint of the sliding block and the fixed hinge. Through the design of the sliding block, the limiting piece, the stopping block and the adjusting assembly, when the movable hinge rotates at the top of the fixed hinge through the rotating assembly, the movable hinge drives the sliding block to slide towards one side of the stopping block at the top of the fixed hinge, and the arranged stopping block is used for limiting the moving distance of the sliding block; therefore, the rotating angle of the movable hinge is limited by limiting the moving distance of the sliding block, the opening angle of the movable hinge and the door and window is adjusted by adjusting the position of the stopping block, and when a child exists in a family, the angle is directly adjusted to the angle where the child cannot penetrate through the door and window.

The application discloses a portable fluorescence detector for rapid detection, which comprises a box body and a top cover. A fixed hinge is arranged between the box body and the top cover. A control panel and an observation port are arranged on the outer surface of the top cover. The observation port is provided with an upper filter, which is used for observing the inside of the box body. A hole plate is arranged in the box body. The front end of the hole plate is provided with a guide rail. The surface of the guide rail is provided with a first sliding block and a second sliding block. The fluorescence of the sample in the sample cell can be directly detected through the dichroic mirror, the filter support and the laser structure. The detection method is simple and convenient to adjust. The structure is divided into three parts. When the position is wrong, the user can adjust it by himself without repeated maintenance and fine adjustment.

The utility model relates to a flap door hinge which comprises a fixed seat and a movable seat, a fixed hinge seat is arranged on the fixed seat, a hinge assembly is connected between the fixed hinge seat and the movable seat, and the hinge assembly comprises a hinge seat, a connecting rod and a swing arm. The rear end of the fixed hinge seat is movably hinged to the rear end of the hinge seat through a connecting rod, a movable hinge seat is arranged in the middle of the hinge seat, and the movable hinge seat is movably hinged to the front end of the fixed hinge seat through a swing arm; a transverse adjusting structure and a longitudinal adjusting structure are arranged at the front end of the hinge seat, an adjusting matching part matched with the transverse adjusting structure is arranged on the movable seat, and the longitudinal adjusting structure acts on and abuts against the movable seat; when the hinge is installed, the position of the flap door can be flexibly adjusted, so that the flap door can be tightly matched with the cupboard, and the quality and the grade of the cupboard are improved.

The application discloses a kind of eccentric hinge arc door support hinge pre-assembly methods, belong to eccentric hinge arc door technical field, including selecting site, burying foundation plate, installation adjustment pre-assembly device and detection qualified, install auxiliary support, assemble two fixed hinge bases, check each reference edge, center line and hole position deviation qualified, connect fixed hinge base and main base bolt, detect the coaxiality deviation qualified of the center of four shaft holes of two hinge bases without bearing cover, assemble hinge base bearing cover, detect the coaxiality deviation qualified of the center of four shaft holes of two hinge bases, make the alignment mark of hinge base and pre-assembly device, remove hinge base bearing cover and assemble movable hinge base, eccentric shaft and bearing, assemble movable hinge base, adjust eccentric angle of eccentric shaft consistent, install crank arm and coupling, adjust movable hinge base and detect center line qualified, eccentric action test.The application can solve the problem of positioning precision of eccentric hinge device assembly without support girder, and can improve the safety, accuracy and one-time qualified rate of assembly work.

The utility model discloses an automatic hose discharging device, which relates to the technical field of hose filling and sealing machines and comprises a machine body, a turntable and a hose discharging mechanism, the turntable and the hose discharging mechanism are arranged on the machine body, a plurality of hose storage blocks are arranged on the turntable, a support is arranged in the machine body, a first motor is arranged on the support, and a second motor is arranged on the first motor. The center of the rotating disc is connected to an output shaft of the first motor, at least three sets of fixed hinged supports are arranged in the machine body, a second motor is arranged on one set of fixed hinged supports, rotating shafts are arranged on the other sets of hinged supports, a driving chain wheel is arranged on an output shaft of the second motor, and an ejection mechanism is arranged on each rotating shaft. The ejection mechanism and the driving chain wheel are connected with a chain in a matched mode. According to the automatic hose discharging device provided by the utility model, at least two groups of ejection mechanisms are arranged, so that hoses in two adjacent hose storage blocks are ejected to the hose discharging mechanism and then are conveyed out of the device.

The present invention discloses a sanitation cleaning vehicle capable of achieving deep cleaning, comprising a cleaning device and a lifting mechanism thereof. The cleaning device comprises a support seat, a first mounting seat being provided on the side of the support seat for lifting, a second mounting seat being provided on the side of the first mounting seat for transverse movement, an extension frame being connected to the side of the second mounting seat by means of an ear shaft, a protective shell being provided on the lower side of the extension frame, a shell cover being provided on the top of the protective shell, two brush cylinders being symmetrically provided on the lower side of the protective shell, the upper ends of the brush cylinders being installed in a reinforcement member by bolts, a linear groove being provided on the lower inner wall of the protective shell corresponding to the position of the reinforcement member, the extension frame driving the protective shell and the brush cylinder to rotate as a whole by means of an internal revolution mechanism, thereby collaboratively solving the blind spot problem of unidirectional brushing of traditional cleaning devices. The lifting mechanism comprises a fixed frame, a connecting plate, a fixed hinged plate, a lower hinged plate, an upper hinged plate, a vertical hinged plate, an oil cylinder and a lifting fixed frame, thereby achieving smooth lifting and lowering of the cleaning device.

The present application relates to a movable seat unit, comprising a handrail side plate (1) supported on the ground; a mechanical stretching device (2) comprising a seat frame (21) for attaching a seat part, a backrest assembly (22) arranged at the rear of the seat frame (21) for attaching a backrest, and a leg stretching device (23) pivotally connected to the front of the seat frame (21), wherein a guide rail (11) extending in the front-rear direction of the seat unit is arranged on the handrail side plate (1), and the seat frame (21) is slidingly connected with the guide rail (11); the lower end of the backrest mounting member is pivotally connected with the rear of the seat frame (21), and the lower end of the follow-up connecting rod (222) is pivotally connected to a fixed hinge point relative to the position of the handrail side plate (1), so that when the seat frame (21) slides forward, the pivot point of the lower end of the backrest mounting member and the rear of the seat frame moves forward. In addition, the present application also relates to a movable seat.