47results about How to "Serve as a buffer" patented technology

The invention relates to the field of hydraulic equipment, and particularly relates to an impact-resistant balance oil cylinder with pressure relief and buffer protection functions. The impact-resistant balance oil cylinder comprises a cylinder body, a piston, a piston rod, a first valve element and a second valve element, wherein the first valve element and the second valve element slide relativeto the cylinder body; a first closed air cavity and a second closed air cavity are formed between the two valve elements and the inner walls of the two opposite ends of the cylinder body correspondingly; a first closed oil cavity and a second closed oil cavity are formed between the two valve elements and the two end faces of the piston correspondingly; and a first oil cavity oil through hole anda second oil cavity oil through hole are formed in the positions, corresponding to the first oil cavity and the second oil cavity, of the cylinder body correspondingly. According to the balance oil cylinder with the buffer and pressure relief functions, a buffer device does not need to be additionally arranged for a hydraulic system of a hydraulic support independently, and the structure is simplified; when the pressure in the cylinder body is too large and a safety valve is not opened, safe and stable pressure relief is achieved through the overflow effect of oil cavity oil drainage holes; and the multi-stage buffer purpose is achieved for the oil cylinder through the cooperation effect of the high-pressure air cavities and disc springs, and the stability and reliability of the buffer process are improved.

The invention discloses a rapid heat dissipating type gearbox housing. The rapid heat dissipating type gearbox housing comprises a housing body, a base and a heat dissipating assembly, wherein the base comprises a left seat and a right seat which are correspondingly fixedly connected to the left side and the right side of the bottom part of the housing body; the base is fixedly mounted at the upper end of a longitudinal beam of a vehicle body; the heat dissipating assembly comprises a power fan, an acceleration air channel, an air draft fan, an air exhausting fan, a heat transferring assembly,air conveying channels and a transmission assembly; the acceleration air channel is fixedly mounted in the middle part of the bottom part of the housing body; the area of an air inlet of the acceleration channel is more than that of an air outlet; the power fan is rotatably mounted at the outer bottom part of the housing body and is positioned in the middle part of the acceleration air channel; the air conveying channels are symmetrically distributed on two inner side surfaces and the inner bottom surface of the housing body; the air conveying channels are provided with a plurality of air inlets, and the air inlets are symmetrically arranged at two ends of the air conveying channels. According to the scheme, the rapid heat dissipating type gearbox housing has the advantage that the heat dissipating efficiency is greatly improved while the size of the gearbox housing remains.

The invention discloses a modular inflatable buffer module rescue flood prevention plate which comprises a main flood prevention plate body and a bottom flood prevention plate body. An arc-shaped connecting corner is arranged between the main flood prevention plate body and the bottom flood prevention plate body; the bottom of the bottom flood prevention plate body can press a whole flood prevention member through the gravity of water flow when a flood comes; inflatable buffer columns are arranged on the front side of the main flood prevention plate body; inner flood flow grooves are formed inthe inner side of the bottom flood prevention plate body, and the multiple inner flood flow grooves and the arc-shaped connecting corner can greatly buffer impacting flood flow; and trapezoidal supporting bases are arranged on the rear side of the main flood prevention plate body. The invention relates to the technical field of flood prevention rescue. By means of the modular inflatable buffer module rescue flood prevention plate, the problems that the buffer effect is poor under the impact of water flow, residents are isolated by the flood and cannot escape when the water flow is too high, and help cannot be provided for emergency rescue are solved; and after rescue inflatable floating blocks are inflated, the rescue inflatable floating blocks float on the water surface to allow the flood victims to escape in emergency.

The invention discloses emergency backpack satellite communication control equipment and a use method thereof, and relates to the technical field of portable satellite equipment. The emergency backpack satellite communication control equipment comprises a box body with an opening in the top and a protection plate used for shielding the opening of the box body, supporting frames are symmetrically installed on the box body, buffering devices are installed on the supporting frames and make contact with the ground, and a portable station is vertically installed in the box body in a sliding mode. Compared with the prior art, the device has the advantages that when the protection plate is moved through the driving assembly, the portable station can be moved out of the box body through the driving assembly and the linkage assembly, and then the multiple folded antenna auxiliary discs are opened through the adjusting part, so that workers do not need to splice the antenna discs, and the device is relatively convenient to use; and through the buffer device in contact with the ground, damage to parts in the portable station caused by aftershock can be reduced, the service life is prolonged, and the portable station is more novel.

The invention discloses a vibrating screen. The vibrating screen comprises a screen body, buckles, a mounting seat and a support. The support is detachably mounted on an external fixed surface. The mounting seat is mounted on the support through elastic connecting structures, so that the mounting seat does reciprocating motion when bearing an external regular vibration source. The screen body is slidably mounted in a groove formed in the top of the mounting seat. The mounting seat is slidably connected with the screen body through the buckles. Each buckle comprises a connecting part, a handle,a rotary shaft, a mounting block, a spring I and a lock nut. The mounting blocks are fixedly mounted on the side faces of the mounting seat and provided with guide grooves penetrating through the upper and lower end faces. The side face of each handle is provided with a cavity. Each mounting block is loosely contained in one end of corresponding cavity, and the end is provided with a bolt which is arranged in the corresponding guide groove. The vibrating screen is simple in structure and more suitable for underground coal screening.

The invention discloses a cell preservation device for cell engineering, which comprises a storage assembly, the bottom of which is provided with a buffer assembly, the storage assembly includes a first storage box, and the top of the first storage box is fixed with a There is a second storage box. In the present invention, when the device passes through a bumpy road section and causes the first storage box to tilt, at this time, under the action of the counterweight, the first fixed block is always vertically arranged, so that the tilt of the first storage box will not cause The cell test tube in the storage chamber in the first fixed block is inclined, and the movable plate drives the first telescopic rod and the first damping spring in the inclined direction to stretch, and the first telescopic rod and the first damping spring in the opposite direction are compressed to avoid The inclination of the movable plate has a great impact on the first storage box, and the first fixed block is always arranged vertically, so as to avoid the cell damage caused by the vibration of the cell test tube during transportation.

The invention discloses a container with a folding telescopic structure and a using method, and belongs to the technical field of containers. The container with the folding telescopic structure comprises a frame body and a box body, and further comprises a first rotating plate rotationally connected to the periphery of the bottom of the box body, a second rotating plate and a connecting plate. The second rotating plate is rotationally connected to the periphery of the top of the box body; the connecting plate is connected to the second rotating plate in a sliding manner and is connected with the first rotating plate through a hinge; a buffer mechanism for supporting the box body is arranged at the bottom of the frame body; and a control mechanism used for preventing the first rotating plate and the connecting plate from being automatically folded is arranged on the side wall of the frame body. An air pressure assembly capable of generating air when the buffer mechanism works is arranged at the bottom of the frame body and is used for driving the control mechanism to work. In the using process, the container can be protected from being damaged, when not used, the container can be folded, the occupied space is saved, and practicability is greatly improved.

The invention discloses a water surface self-generating floating communication base station, which comprises a buoy base, a bottom float is arranged under the buoy base, a spherical universal joint is arranged on the bottom of the buoy base, and the buoy base passes through a spherical The universal connector is movably connected with the bottom float, and there is a buffer zone between the float base and the bottom float, and a buffer device is installed inside the buffer zone, and an inner ring groove is opened on the upper side of the float base. The invention relates to the technical field of communication engineering. The self-generating floating communication base station on the water surface solves the problem that it is very difficult to establish a base station on the water surface on the island and some locations, and the signal resources are poor. Through the purpose of self-generating reset, the device can be freed from floating on the water surface If there is no power supply, the device will stop working. The device can effectively use wave energy to deform the internal dielectric elastic body, so as to achieve the purpose of continuous power generation, and the signal will not be deteriorated due to the movement of the device.

The invention discloses a stone carving device capable of achieving taking and placing conveniently, and relates to the field of stone carving equipment. The stone carving device aims to solve the problems that stone feeding and discharging are inconvenient, and multi-angle carving cannot be achieved. The stone carving device specifically comprises a base and a clamping frame, winding mechanisms are arranged on the two sides of the outer wall of the top of the clamping frame correspondingly, each set of winding mechanism comprises two ropes, two pulleys and a winding roller, the two pulleys ofeach winding mechanism are rotationally connected to the outer wall of the top of the clamping frame correspondingly, and the winding rollers are rotationally connected to the outer wall of the top of the clamping frame. The clamping frame is arranged, ropes are arranged on the two sides of the clamping frame correspondingly, the bottoms of the four ropes are connected with the same supporting plate, when stone needs to be moved, clamping mechanisms are fixed to the two sides of the upper portion of the stone, then the stone is inclined, the supporting plate is placed at the bottom of the stone, then the four ropes are contracted at the same time to be fixed to the two sides of the stone, and therefore the aim of fixing the stone is achieved; and then the clamping frame is moved, and thestone is moved to a workbench to be carved.

The invention discloses a multi-type waste shredding and separating device for archives, which comprises a work box, a feed port seat is arranged on the top of the work case, a feed pipe is fixedly connected above the feed port seat, and an internal conveying pipe is provided in the middle of the feed pipe box, the top of the working box and the top of the inner delivery box are equipped with a connecting rod seat, the top of the working box is installed with the main connecting rod through the installation of the connecting rod seat, the top of the inner delivery box is installed with a connecting sub-rod through the installation of the connecting rod seat, and the main connecting rod It is rotatably connected with the end of the connecting sub-rod away from the installation link seat. The invention relates to the technical field of paper and paper shell waste shredding. This device solves the problems that the existing paper and carton waste shredding device is very troublesome to actively convey paper and carton waste, it is troublesome to adjust when shredding, and the later separation is relatively cumbersome, ensuring that the paper and carton waste can be Quickly enter the shredding work box, double-adjust shredding wheels to shred paper and carton waste to ensure the cleanliness of the feeding pipe.

The invention discloses a discharging structure of a tobacco leaf loosening humidifier and belongs to the technical field of the tobacco leaf loosening humidifier. The discharging structure of the tobacco leaf loosening humidifier is technically characterized by comprising a machine body, wherein a humidifying cylinder is arranged in the machine body, a vibrating groove is arranged below a discharging end of the humidifying cylinder, a humidity discharging hood is arranged at the side of the humidifying cylinder which is in the length direction of the vibrating groove, wherein a guiding hood is arranged on the machine body at the discharging end of the humidifying cylinder, and the lower end of the guiding hood stretches into the vibrating trough; the space a between a discharging port of the guiding hood and the rear end of the vibrating trough is 400-700mm; and one end of the guiding hood, opposite to the humidity discharging hood, stretches into the humidity discharging hood, and the space b between the upper end face of the guiding hood in the humidity discharging hood and an opening part of the humidity discharging hood is 250-400mm. The leakage-proof discharging structure of the tobacco leaf loosening humidifier, provided by the invention, is compact in structure and good in use effect and is used for loosening and humidifying the tobacco leaf.