20results about How to "Simple limit structure" patented technology

The rotary-cut biopsy needle transmission structure comprises an outer sleeve of a linear structure, the tool bit end of the rotary-cut biopsy needle transmission structure coaxially penetrates through a rotary-cut tool tube in the outer sleeve, and the rotary-cut tool tube is in clearance fit with the outer sleeve; the hollow screw rod is coaxially and fixedly arranged at the position, away from the outer sleeve, of the rotary cutting knife tube in a sleeving mode, the hollow screw rod is coaxially sleeved with a linear driving gear, and the linear driving gear is in threaded fit with the hollow screw rod; one end of the hollow screw is coaxially sleeved with a rotary driving gear, and an inner pipe of the rotary driving gear is in sliding fit with the hollow screw in the axial direction of the rotary driving gear and is fixedly clamped with the hollow screw in the rotating direction of the rotary driving gear; during use, the linear driving gear rotates to drive the hollow screw rod and the rotary cutter pipe to linearly move along the axis of the hollow screw rod and the rotary cutter pipe; and the rotary driving gear rotates to drive the hollow screw rod and the rotary cutter pipe to rotate around own axes. The rotary cutting knife tube is driven to move in the mode, the structure is simple, transmission is stable, the operation risk can be reduced, and the operation success rate is increased.

The present invention discloses a pre-test processing device, medical equipment and a detection method, wherein the pre-test processing device includes a tray having at least one limiting groove; a tray fixing fixture having a structure for installing and fixing the tray; a material supply mechanism having a structure for storing materials in batches and transferring the materials one by one to the tray; a test liquid storage mechanism having a group of containers; and an injection mechanism having a structure that can extend into any of the containers to absorb liquid and inject it into the groove of the material on the tray. This solution installs reagent strips by setting a tray, and stores batches of materials through a material supply mechanism and transfers the stored materials to the tray to meet the test needs. Combined with the injection mechanism, the test liquid in the container is automatically injected into the groove of the reagent strip on the tray, which can meet the needs of large-scale and multi-item testing, create equipment conditions for the automation of various tests, and help improve detection efficiency.

This utility model discloses an anti-accidental activation structure for a stapler, including a stapler body and a cutting blade disposed within the stapler body; a protective lock is rotatably mounted at the tail end of the stapler body; a limiting mechanism is provided on the inner side of the protective lock to limit the tail end of the cutting blade; an anti-rotation mechanism is provided on the protective lock to lock the stapler body; and a reset mechanism is provided between the protective lock and the stapler body for resetting the protective lock after accidental activation. The protective lock, limiting mechanism, anti-rotation mechanism, and reset mechanism of this utility model work together to form a three-layer anti-accidental activation protection; the limiting mechanism directly locks the cutting blade position to prevent accidental activation; the anti-rotation mechanism ensures the protective lock is stably locked; and the reset mechanism automatically restores the protective lock to its initial position after accidental activation, thereby avoiding damage to the stapler due to misalignment of the protective structure after docking with the instrument.

The invention belongs to the field of biological protein gel electrophoresis tanks, and relates to a multi-gel-position electrophoresis tank which comprises a multi-gel-position electrophoresis tank body and at least one gel frame group, the multi-gel-position electrophoresis tank body comprises a tank body, the tank body is provided with a cavity, at least two electrophoresis positions matched with the gel frame group are formed in the cavity, and the gel frame group is arranged in the cavity. A lug boss is arranged between every two adjacent electrophoresis positions; an observation space is formed between the outer part of the lug boss and the tank body; and the rubber frame assemblies are matched with the corresponding electrophoresis positions. After the structure is adopted, the electrophoresis tank has the beneficial effects that the design of the convex part is adopted between the two adjacent electrophoresis positions, and the observation space is formed between the outer part of the convex part and the tank body, so that the electrophoresis state of two rubber plates on the inner side can be intuitively observed through the observation space, and the experiment efficiency is improved.

The utility model belongs to the technical field of power supply output power display, and particularly relates to a power supply output power display device convenient to disassemble, which comprises a base connected with a first power supply interface, a main control board, a power sensor and a display screen. The first power interface is electrically connected with the power sensor, the power sensor is electrically connected with the display screen, the display screen is connected with a moving plate, the moving plate is provided with a limiting hole, the base is connected with a rotating block, the rotating block is connected with a limiting rod, the limiting rod is matched with the limiting hole, the moving plate is connected with a sliding block, and the sliding block is connected with the power sensor. The base is provided with a sliding groove, the sliding block is connected with the sliding groove in a sliding mode, the base is provided with a heat dissipation structure, the heat dissipation structure is used for dissipating heat of the main control board, the display screen is fixed through the limiting and sliding structure, and an operator can take out and replace the power display device more conveniently.

The invention provides a shell structure, an electronic endoscope image processor and an assembling method, the shell structure comprises a lower shell, an upper shell and a panel, the lower shell comprises a bottom plate and first side plates connected to the two sides of the bottom plate in the width direction and perpendicular to the bottom plate, and the tops of the inner side faces of the first side plates are connected with bent plates; the panels are connected to the two ends of the lower shell in the length direction, and the end faces of the panel assembling parts make contact with the end faces of the first side plates and the end faces of the bent plates. The upper shell comprises a top plate and second side plates connected to the two sides of the top plate in the width direction and perpendicular to the top plate. The second side plate of the upper shell is in sliding fit with the assembling part of the panel in the height direction, after the upper shell slides in place, the bottom face of the second side plate makes contact with the top face of the first side plate, and the inner side face of the second side plate makes contact with the outer side face of the bent plate. On one hand, the shell structure has the advantage of being simple in structure, on the other hand, assembling among shell parts is easy to align, and rapid assembling of the shell can be achieved.

The present invention discloses a gas timing valve, which relates to the technical field of valve equipment, including a valve mounting seat and also a valve support seat, wherein the valve support seat is mounted on the bottom of the valve mounting seat. The present invention is provided with a valve mounting seat, a valve support seat, a sealing flange, a limit locking mechanism and a sealing mechanism, wherein a first limit plug rod is used to lock a connecting shaft inside a valve control compartment in a non-operating state, the control valve is opened, and lubricating oil is added to the inside of an adsorption pad through a refueling pipeline, thereby ensuring the normal operation of the limit locking mechanism and extending the service life of the equipment; the present invention is provided with a supporting installation mechanism, and at the same time, a large amount of electronic equipment is not used for auxiliary installation, thereby saving installation costs, facilitating effective cost control, and realizing the integration of normal use and control of the valve, valve mounting support and convenient adjustment, and valve sealing connection functions, thereby improving the overall flexibility of use.

The utility model discloses a brush with a rotatable brush head, which comprises a brush handle, and one end of the brush handle is connected with the brush head. Bristles are arranged on the upper side or the lower side of the brush head, a rotating shaft is arranged on the brush head, a connecting base is arranged at one end of the brush handle and provided with a rotating hole used for containing the rotating shaft, and the brush head can rotate around the rotating shaft, so that the angle of the brush head is adjusted to adapt to cleaning faces of different positions of shoes. A movable connecting structure and an elastic clamping assembly are arranged between the brush head and the connecting seat; the movable connecting structure is used for enabling the rotating shaft to rotate and not to be separated from the rotating hole; the elastic clamping assembly can lock the brush head after the brush head rotates to a use angle; when the brush head is subjected to external force larger than the external force driving the brush head to rotate, it is ensured that the brush head is locked after rotating, and the brush head can stably wash shoes.

The application discloses a rotary joint and a drilling machine, and the rotary joint comprises a rotating shaft, a bearing, a limiting shell, a packing seal box assembly, a wear-resistant mandrel body, a flange assembly and a mud input joint; the rotating shaft is rotatably installed in the limiting shell through the bearing which is axially limited; the first end part of the wear-resistant mandrel body is located in the rotating shaft, and the outer ring of the first end part of the wear-resistant mandrel body and the inner ring of the rotating shaft are rotatably sealed through the packing seal box assembly, and the packing seal box assembly is axially and circumferentially limited relative to the rotating shaft; the second end part of the wear-resistant mandrel body is connected with the mud input joint through the packing assembly in a static sealing mode; the flange assembly comprises a first flange, a flange connecting part and a second flange which are sequentially connected, the first flange is fixedly connected with the limiting shell, the second flange is fixedly connected with the mud input joint, and the wear-resistant mandrel body is axially adjustably connected with the flange connecting part through a connecting piece. The sealing effect is guaranteed, and the service life of the rotary joint is improved.

A highly adaptable wheelset belongs to the field of material handling equipment technology. This invention includes a wheelset frame, wheel plates, and load-bearing wheels. Two load-bearing wheels are rotatably connected between two wheel plates. The two wheel plates are rotatably connected to opposite sides within the wheelset frame. The wheelset frame is provided with a limiting structure to restrict the maximum upward swing angle of at least one wheel plate. This invention effectively avoids jamming when driving on uneven ground, resulting in higher maneuverability.

The utility model discloses a portable moxibustion heater which comprises a shell, the center of the shell is fixedly connected with a heating assembly, the upper end of the heating assembly is provided with a top cover assembly, the lower end of the heating assembly is provided with a ventilation cover, and a wormwood piece is arranged above the ventilation cover. According to the portable moxibustion heater, the arc-shaped decoration edge is arranged on the outer side of the shell, the shell is of a circular structure, the appearance is novel and attractive, the decoration effect is good, a hanging ring is arranged, a rope penetrates through the hanging ring to fix the moxibustion heater, carrying is convenient, a top cover assembly is arranged, and when a wormwood piece is placed in, the wormwood piece is placed in a heating pipe and falls at the upper end of a placing plate, and the moxibustion piece is placed in the heating pipe. The top cover assembly covers the upper end of the heating assembly, the spring and the pressing plate apply pressure to the wormwood sheet to tightly press the wormwood sheet at the upper end of the placing plate, the fixing effect is good, the lower end of the heating assembly is in threaded connection with the ventilation cover, the ventilation cover is convenient to disassemble, and the interior of the heating pipe is cleaned.

The present application relates to a kind of end point clamping mechanism and straightening device for correcting after aluminum alloy profile extrusion molding, belong to aluminum alloy profile processing equipment field.For the problem that existing inner expansion type clamping mechanism is easy to slip when traction straightening, the present application sets up split type anti-slip self-locking structure outside movable block: support block is connected with movable block by inclined surface sliding, and support block clamping surface is provided with anti-slip structure.Support block is abutted to profile inner wall after initial expansion;When traction force, the large friction force of support block and profile drives it to slide along inclined surface and further expands outward, and forms self-locking clamping that is more and more tight.Moreover, universal transmission joint can be arranged in driving shaft, so that clamping mechanism is self-adaptive to the direction of special-shaped end face.The present application realizes the self-locking mechanism that clamping force is strengthened with pulling force during traction, completely solves the problem of slipping, and can adapt to the change of end face orientation, applicable to the efficient straightening of multi-cavity thin-walled aluminum alloy profile.

The present invention discloses a wire-reeling mechanism and bathroom equipment with the wire-reeling mechanism, comprising a wire-reel wheel, a first elastic reset component and a limiting body, wherein the wire is wound around the wire-reel wheel, and the wire-reel wheel rotates forwardly under the action of an external force of the wire, overcoming the elastic force of the first elastic reset component; the external force of the wire drives the wire-reel wheel so that the wire-reel wheel reciprocates between a first position and a second position; and / or the external force of the wire drives the wire-reel wheel and drives the limiting body through the wire-reel wheel so that the limiting body reciprocates between a third position and a fourth position; when in the first position and / or the third position, the limiting body cooperates with the wire-reel wheel to prevent the wire-reel wheel from rotating in the opposite direction; when in the second position and / or the fourth position, the limiting body is separated from the wire-reel wheel, and the wire-reel wheel automatically rotates in the opposite direction and resets under the action of the first elastic reset component and drives the wire to be automatically reeled in, so that the wire is pulled and fixed once, and the wire-reel wheel is automatically recovered after the wire is pulled again, thereby simplifying the operation.

The utility model belongs to the technical field of food processing devices, and discloses a food processor which comprises a cup body, a smashing cutter arranged at the bottom of the cup body, a cup cover arranged above the cup body in a covering mode and a discharging assembly installed on the cup cover. The bottom of the baffle is provided with a blade driven by liquid flow, the blade drives the baffle to move so as to open the discharging port, one side of the cup cover is provided with a cover opening portion protruding outwards, the discharging assembly further comprises a limiting structure, the limiting structure limits the blade at the cover opening position so that cover opening operation can be conducted, and the connecting line of the center of the cup cover and the center of the cover opening portion is located on a vertical plane L; when the blades are located at the cover opening position close to one side of the cover opening part, the deflection angle A relative to the vertical plane L is larger than or equal to 5 degrees. Furthermore, in the cover opening process, the avoiding distance between the outer end of the blade and the side wall of the cup body is increased, and the cover can be easily opened under the condition of ensuring that the blade has enough impact surface and driving force.

The utility model relates to the technical field of die manufacturing, in particular to a limiting structure and a die suitable for optocoupler product forming, which comprise a base and a limiting piece arranged on the base, the limiting piece extends towards the direction far away from the base to form a limiting support column, and the limiting support column is provided with a limiting groove. One end of the limiting pillar is provided with a limiting part used for limiting the placing position of the optocoupler product. According to the limiting structure, the base is installed on a forming die of the optocoupler product, the placing position of the optocoupler product in the forming process is accurately limited through the limiting part on the limiting piece, the optocoupler product is not prone to position deviation, accurate machining in the follow-up procedure is facilitated, the machining precision is improved, the product quality is improved, and the limiting structure is integrally simple and convenient to use. The device is easy to install and produce, can be applied to an optocoupler product production line on a large scale, and improves the production efficiency and the production quality.

The invention discloses a fuel gas timing valve, and relates to the technical field of valve equipment, the fuel gas timing valve comprises a valve mounting seat and further comprises a valve supporting seat, the valve supporting seat is mounted at the bottom of the valve mounting seat, and the fuel gas timing valve is provided with the valve mounting seat, the valve supporting seat, a sealing flange plate, a limiting locking mechanism and a connecting sealing mechanism; a connecting shaft in a valve control bin in a non-operation state is locked through a first limiting insertion rod, a control valve is opened, lubricating oil is supplemented into an adsorption pad through an oil filling pipeline, normal operation of a limiting locking mechanism is guaranteed, and the service life of equipment is prolonged; the supporting installation mechanism is arranged, meanwhile, a large number of electronic devices are not used for auxiliary installation, the installation cost is saved, the cost can be effectively controlled conveniently, the functions of normal use and control of the valve, valve installation supporting and convenient adjustment and valve sealing connection are integrated, and therefore the overall use flexibility is improved.

The utility model relates to the technical field of automatic track running trolley conveying, in particular to a balance beam device of an electrified box, which comprises a balance beam fixedly provided with a sliding component extending out of the side edge of the balance beam. The electric box is arranged on the sliding assembly in a manner of sliding along the axial direction of the sliding assembly; and the balance beam is provided with a limiting structure for limiting the sliding of the electric box in a matched manner. According to the device, the sliding assembly laterally extends out of the side face of the balance beam, the electric box is arranged on the sliding assembly and can axially slide along the sliding assembly, the electric box slides to the end close to the maintenance channel during installation and maintenance, and the problem that the electric box is inconvenient to install and maintain is solved; the electric box can be stably fixed on the sliding assembly through the limiting structure, and the potential safety hazard of sliding production of the electric box in the running process of the train set is prevented; the device is simple in structure and convenient to use, and has great popularization value.

The application discloses a kind of electric control brake system transmission mechanism, including motor, motor includes rotor, rotor is connected with rotor cover, motor is equipped with motor base, rotor cover one end is fixedly connected with motor base;Motor is further equipped with ball screw, ball screw includes screw shaft and nut, screw shaft is cooperated with nut, screw shaft one end is located in motor base and is contacted with motor base;Motor base and screw shaft are equipped with the limiting structure that keeps ball screw from loosening, nut is connected with plunger, plunger extends from motor, the electric control brake system transmission mechanism of the application is used, and the number of parts is less, and the limiting effect is reliable, and the application cost is low.

The embodiment of the application provides a heating device, which comprises a main ring shell, a plurality of support plates, a first heating wire and a first heat insulation plate, each support plate is installed on the main ring shell, each support plate is sequentially and spacedly arranged along the circumference direction of the main ring shell, one side of part of the support plates along the center line direction of the main ring shell is provided with an opening, the other side of part of the support plates along the center line direction of the main ring shell is provided with an opening, the first heating wire is arranged through the openings of each support plate, the first heat insulation plate is arranged on each support plate, the first heat insulation plate extends along the circumference direction of the main ring shell, and the first heating wire is located between the main ring shell and the first heat insulation plate. In the heating device, two kinds of support plates are provided, the opening positions of the two kinds of support plates are different, the two kinds of support plates are limited on the two sides of the first heating wire respectively, the position of the first heating wire is limited, the first heating wire is prevented from being separated, the limiting structure of the first heating wire is relatively simple, and the assembly efficiency of the heating device is improved.