43results about How to "Meet replacement needs" patented technology

The invention relates to a stent vessel for interventional therapy and a dedicated traction tool for implanting the stent vessel into a human body. The stent vessel comprises an artificial or animal vessel and support rings, wherein the support rings in three structures are used for fixation and respectively arranged at the outlet end and the inlet end of the artificial or animal vessel, and in the support rings, a detachable support ring with radial resilience force is further provided. The dedicated traction tool is especially suitable for dragging a Y-shaped stent into circuitous or narrow parts of the human body. The stent vessel provided by the invention is extremely flexible and easy to be implanted into a branch vessel until to the circuitous part. Because the main part and the branch of the stent vessel are integrated, the stent vessel is easy to position and safe and reliable without leakage after being implanted into the human body; and as the structure is simple and the cost is low, stent vessels in various diameters, variable diameters and lengths are be made, and the application range is wide because of no limit to lengths.

The invention discloses an air purification device with a replaceable filter screen. The purification device comprises a substrate (8), wherein the inner space of the substrate (8) comprises a bottom storage area (82), an upper front-side air purification area (81) and an upper rear-side filter screen sliding path area (83), wherein the bottom storage area (82) is used for containing a plurality of filter screen components (88); the upper front-side air purification area (81) is used for installing the selected filter screen; a sliding driving component (84) which extends in a front-back direction is arranged in the filter screen sliding path area (83) for enabling the selected filter screen to slide in a front-back direction; each filter screen component (88) comprises a filter screen installation plate (7), lifting driving screw rods (51) and a lifting rack (6), wherein the lifting driving screw rods (51) of each filter screen component (88) are positioned on two sides of the corresponding filter screen installation plate (7); each lifting rack (6) is driven by the corresponding lifting driving screw rods (51).

The invention discloses a bridge shock absorber which comprises an inner hoop, an outer hoop, a shock absorption support and a flange ring, and the inner hoop and the outer hoop are each formed by splicing a left semi-arc piece and a right semi-arc piece; the left semi-arc piece of the inner hoop and the left semi-arc piece of the outer hoop are connected into a whole through the shock absorption support; the right semi-arc piece of the inner hoop and the right semi-arc piece of the outer hoop are connected into a whole through the shock absorption support; and the flange ring is vertically fixed to the top end of the outer hoop. The invention discloses a bridge shock absorber which can meet the requirement for support replacement, has a good energy dissipation capacity, can respond to 360-degree displacement of a beam body, enables sliding piers to participate in cooperative shock resistance, is beneficial to preventing the beam body from sliding off and is suitable for new construction and seismic reinforcement of railway bridges, highway bridges, urban viaducts and various continuous beam bridges.

The invention provides a building letter box device capable of achieving selectable storage and safe. The device comprises a shell. Internal space of the shell comprises a storage region used for containing multiple letter box assemblies and located at the bottom, an operating region used for installation of selected letter boxes and located on the front side of the upper portion, and a letter box sliding path region located on the rear side of the upper portion. Sliding driving assemblies stretching in the front-and-back direction are arranged in the letter box sliding path region and used for enabling the selected letter boxes to slide in the front-and-back direction, a lighting lamp device is arranged in the operating region and used for lighting the operating region at night or in dark natural light, and the lighting lamp device is an LED light lamp. Each letter box assembly comprises a letter box installing plate, lifting driving screws located on the two sides of the letter box installing plate, and a lifting rack driven by the lifting driving screws.

An air purification device capable of replacing filter screens, comprising a base body (8), wherein the inner space of the base body (8) includes a bottom storage area (82) for accommodating multiple filter screen assemblies (88), an upper The air purification area (81) on the front side for installing the selected filter screen and the filter screen sliding path area (83) on the upper rear side, the filter screen sliding path area (83) is provided with slides extending in the front and rear directions The drive assembly (84) is used to make the selected filter screen slide in the front and back directions; wherein, each of the filter screen assemblies (88) includes a filter screen installation plate (7) and a screen located on the filter screen installation plate (7) The lifting drive screw (51) on both sides and the lifting frame (6) driven by the lifting drive screw (51).

The invention discloses an injection mold frame matched with an inclined top. The injection mold frame comprises a top mold frame and a bottom mold frame; a top mold base is arranged on the top mold frame; a bottom mold base is arranged on the bottom mold frame; a top mold core is arranged on the top mold base; a bottom mold core is arranged on the bottom mold base; two bottom mold core injectionmolding stations are arranged on the bottom mold core; each bottom mold core injection molding station at least comprises an inclined top movable mold block; an inclined top cavity groove is formed ineach bottom mold core injection molding station; an inclined top matching cavity groove is formed in the bottom mold base; each inclined top cavity groove and the inclined top matching cavity grooveare spliced to form a guide sliding groove; a top mold core injection molding station is arranged on the top mold core; an avoiding guide groove is formed in the top mold core injection molding station; and an inclined top driving block is arranged on the top mold base. According to the injection mold frame, the design that the guide groove is spliced by the mold base and the mold core is adopted,the size of the mold core is reduced, guide driving of the movable mold block is easy to achieve, the cost of the injection mold frame is reduced, and the mold core replacement requirements of products in different specifications are met. The injection mold frame is provided with a pneumatic pin telescopic structure, the demolding matching requirement of the specific tubular buckling end can be met, and the design is ingenious.

The invention discloses a rotary remote controller for a lifting platform. The remote controller includes a base, an encoder arranged on the base and a turn button in rotation connection with the basethrough the encoder, wherein the encoder includes an input shaft, an elastic connection member is connected between the input shaft and the turn button, the elastic connection member is in interference fit with the input shaft and the turn button, the elastic connection member is in interference fit with the encoder and the turn button, the turn button is prevented from spontaneously falling offthe encoder while the turn button is turned and pressed, so connection between the encoder and the turn button is made to be more stable. When a cell is replaced, only pulling the turn button with force from the base is needed to replace the cell, requirements for firmly mounting the remote controller and replacing the cell can be both met through the structure, and the remote controller is more convenient to use. The invention further provides a control method of the rotary remote controller for the lifting platform, and the control method is more convenient to use.

The switching mechanism of the present invention includes: a housing, the housing is a hollow structure with an opening at one end; a base plate, the base plate is arranged at the opening of the housing, the housing and the base plate form the main body of the smart plug-in board, and an object is arranged in the main body of the smart plug-in board space; an interface, the interface is set on the base plate; an electric bolt hole, the electric bolt hole is set on the base plate; a positioning mechanism, the positioning mechanism is set on the base plate. Compared with the prior art, the present invention has the following advantages: due to the complicated mechanical, electrical and thermal connections between the stand-alone module and the satellite, usually the stand-alone module and the satellite platform can only be assembled on the ground, and cannot be directly assembled to the satellite platform through on-orbit plugging and unplugging. on the satellite. The present invention provides a transfer mechanism for on-rail replacement of single-machine modules, which converts the problem of on-rail replacement of stand-alone modules into the replacement problem of the combination of the transfer mechanism and healthy single-machine modules, and avoids the direct on-rail replacement of single-machine modules. Assembly is beneficial to the engineering realization of on-orbit replacement of stand-alone modules.

The invention discloses an air purifying device with a replaceable filter screen and being stable in structure. The air purifying device comprises a substrate (8), wherein the inner space of the substrate (8) comprises a storage area (82) which is located at the bottom part and is used for allowing a plurality of filter screen assemblies (88) to be accommodated, an air purifying area (81) which is located on the upper front side and is used for allowing a selected filter screen to be mounted, and a filter screen sliding path area (83) on the upper rear side; slide driving assemblies (84) extending in a front-rear direction are arranged in the filter screen sliding path area (83), and are used for enabling the selected filter screen to slide in the front-rear direction; and each of the filter screen assemblies (88) comprises a filter screen mounting plate (7), elevating driving screw rods (51) located on the two sides of the filter screen mounting plate (7), and elevator frames (6) driven by the elevating driving screw rods (51).

The invention discloses a stable shooting training device easy to replace shooting targets. The device comprises a shell (8), wherein internal space of the shell (8) includes a storage area (82) at the bottom for accommodating multiple shooting target modules (88), a display area (81) on the front side of the upper part for displaying selected shooting targets, and a shooting target slide path area (83) on the back side of the upper part; a slide driving module (84) extending in the front-back direction is arranged in the shooting target slide path area (83) for sliding the selected shooting targets in the front-back direction; and each of the multiple shooting target modules (88) includes a shooting target mounting plate (7), lift driving screw rods (51) positioned on two sides of the shooting target mounting plate (7), and lift support frames (6) driven by the lift driving screw rods (51).

Provided is a public paper roll device capable of optional replacement. The public paper roll device includes a shell, wherein, the inside space of the shell includes a bottom storage area used to withhold a plurality of paper roll frame components, an upper front operation area used to install the selected paper roll frame and an upper back side sliding route area for paper roll frame, a sliding and driving component that extends along the front and back direction is placed in the sliding route area of the paper roll frame and is used to make the selected paper roll frame to slid along the front and back direction, a lighting lamp device is placed in the operation area, the lighting lamp device is used for lighting use during the night or when the natural light is dim, the lighting lamp device is an LED lighting lamp; wherein, each of the plurality of paper roll frame components includes a paper roll installation board, and a lifting and driving screw rod located on two sides of the paper roll installation board, and a lifting body frame driven by the lifting and driving screw rod.

The invention discloses a large wind tunnel test section replacement method. The purpose is to solve the problem that according to an existing wind tunnel test section transportation mode, travellingmechanisms turn inconveniently or positioning is not accurate during replacement. According to the large wind tunnel test section replacement method, test section transportation vehicles are adopted for conducting test section transportation and replacement, a test section is not provided with travelling mechanisms, and through lifting, 90-degree turning of wheels and freely parallel operation ofthe multiple vehicles of the test section transportation vehicles, turning of the wind tunnel test section is achieved; meanwhile, a V-flat slideway mode is adopted for positioning wind tunnel test stations of the test section, round liquid hydrostatic bearings are arranged on the test section transportation vehicles and are used for reducing transverse friction force when the test section falls into a slideway, and through cooperation of the V-flat slideway, the wind tunnel test section and the round liquid hydrostatic bearings, the wind tunnel test section is precisely positioned. By means of the large wind tunnel test section replacement method, the problems that during wind tunnel test section transportation and replacement, positioning is not accurate, and the travelling mechanisms need to turn can be effectively solved, so that the large wind tunnel test section replacement method has a high application value.

The invention discloses a drawer type switch cabinet. The drawer type switch cabinet comprises a drawer body provided with electronic components; an observation window is formed at the movable front panel of the drawer body; the drawer body is provided with a movable multi-functional board assembly for mounting multi-functional meters and signal lamps; and the movable multi-functional board assembly is hinged to the drawer body. The drawer type switch cabinet of the invention has the advantages of simple structure, convenient operation and flexible movement. The multi-function board of the drawer type switch cabinet can be replaced, and therefore, device installation and maintenance can be facilitated.