39results about How to "Reduce risk of tipping over" patented technology

A software modification ontrack maintenance and optimization method includes a first step of confirming a last modification point statement of a function which needs ontrack maintenance in an onboard software code, a second step of carrying out operations of recovering a register field and modifying a return address of a novel function after the last modification point statement of the novel function, and modifying the return address of the novel function to an address of a next statement after the last modification point statement of the function which needs ontrack maintenance, a third step of carrying out joint compilation to the new function and an original onboard software code, and a fourth step of extracting a code corresponding to the novel function after the joint compilation and injecting the code onboard to replace the function which needs ontrack maintenance. Through adoption of the software modification ontrack maintenance and optimization method, the optimization design of the ontrack maintenance of software modification is achieved, the injection amount of programs can be obviously decreased, and a risk that the injected programs are overturned by a single particle is reduced.

The invention puts forward a boom system control method, a boom control system and a boom device. The boom system control method comprises the following steps: acquiring the actual support state data of each support leg, and determining the allowed amplitude angle range or scale length range of each boom section of a boom system at different rotation angles according to the actual support state data of each support leg; detecting the amplitude angle or scale length of each boom section; and making each boom section move within the allowed amplitude angle range or scale length range. According to the method, the allowed amplitude angle range or scale length range of each boom section is determined before the boom system moves, so that during movement of each boom section of the boom system, there is no need to calculate the center of gravity of the entire vehicle constantly, and there is only the need to judge whether the amplitude angle or scale length of each boom section of the boom is within the allowed amplitude angle range or scale length range of the boom section through comparison. The existing post-control is changed into pre-control. The safety of the device can be improved, and the risk of tipping can be reduced.

The invention discloses a shielding cabinet which comprises a cabinet body and a shielding door, the shielding door is rotatably connected with the cabinet body through a door shaft, three vertical faces of the cabinet body are cabinet body metal plates formed by bending a complete steel plate, the top of each cabinet body metal plate is fixedly connected with a top plate metal plate, and the bottom of each cabinet body metal plate is fixedly connected with a bottom plate metal plate. Welding a stainless steel shielding edge metal plate on an opening edge formed by the cabinet body metal plate, the top plate metal plate and the bottom plate metal plate; the shielding door comprises a shielding door outer door plate and a stainless steel inner door plate which are sequentially installed from outside to inside, and the stainless steel inner door plate is matched with the stainless steel shielding edge metal plate in shape. Shielding can be achieved through combination of the stainless steel inner door plate and the stainless steel shielding edge metal plate between the cabinet body and the shielding door, a stainless steel plate does not need to be adopted for manufacturing the cabinet body, and a large amount of raw material cost is saved; the shielding door is divided into the shielding door outer door plate and the stainless steel inner door plate, the shielding door outer door plate is independently processed and sprayed with anti-rust paint, and the welding difficulty and sealing requirements of the shielding door outer door plate are reduced.

The invention provides a control method of a boom system, a boom control system and boom equipment. The control method comprises the following steps of: dividing the motion range of each supporting leg into a plurality of motion intervals within a motion range of each of the supporting legs, according to the combination of each of the supporting legs in different motion intervals, establishing a supporting level base, and in the supporting level base, determining an allowable motion range of the boom system under each of the supporting levels and at different revolution angles; detecting the actual supporting state of each of the supporting legs, wherein the actual supporting state comprises the actual extension length and/or the unfolding angle of each of the supporting legs; and according to the detected actual supporting state of each of the supporting legs, in the supporting level base, seeking for the supporting levels corresponding to the actual supporting states of the supporting legs, so that allowable motion ranges of the boom system in different revolution angles are determined, and according to the allowable motion range, controlling the motion of each of the boom system. According to the control method disclosed by the invention, calculating the gravity center of a complete vehicle at all times is not needed, so that the calculation amount is low, and the control error rate is low.

The invention provides a mobile material distribution pump which comprises a base plate, a pumping system, a material distribution arm, a conveying pipe and a first rotary support, wherein the first rotary support is rotatably connected with the base plate; the pumping system is fixedly connected with the base plate; the material distribution arm is arranged on the first rotary support; one end of the conveying pipe is communicated with the pumping system, and the other end of the conveying pipe extends along the material distribution arm; the base plate comprises a base plate upper frame and a traveling part; the base plate upper frame is arranged on the traveling part; and the traveling part can drive the base plate upper frame to move. By utilizing the mobile material distribution pump, under the condition that the material distribution pump is not supported, an effect of distributing materials while pumping the materials is achieved, and a traveling function is realized; moreover, the up-mounted parts of the whole pump and a pumping mechanism can rotate around 360 degrees; a stirring truck does not need to discharge the materials at a fixed point; the flexibility of stirring truck combined work and adaptability to a construction place are improved; meanwhile balance weight blocks are increased to balance torque produced by the material distribution arm during material distribution; and the materials can be stably distributed and prevented from tilting over.

The invention discloses a retractable suspension bracket. One end of each of upper cross arms and lower cross arms is hinged with a vehicle body, the other end of each of the upper cross arms and the lower cross arms is correspondingly hinged with two ends of a supporting bracket, one end, hinged with the supporting bracket, of each lower cross arm is used for being fixedly connected with a walking mechanism and further hinged with one end of a shock absorber , the other end of the shock absorber is hinged with one end of an active arm, the other end of the active arm can be rotationally hinged with the vehicle body through a rotary driving part; amphibious equipment is transferred from land to water, the rotary driving part drives the active arm to rotate earthward for driving all of the upper cross arms and the lower cross arms to rotate upwards through the hinged shock absorber, so that the walking mechanism is upwards overturned to be lifted, when the amphibious equipment is transferred from water to land, the rotary driving part drives the active arm to rotate reversely so as to release the walking mechanism, and further make each of the upper cross arms, the shock absorber and each of the lower cross arms support the walking mechanism in a double wishbone manner. The retractable suspension bracket disclosed by the invention has the advantages of scientific and reasonable design, simple and compact structure, good shock absorption effect and good retraction effect.

A method, system and storage device are generally directed to determining for each of a plurality of data points, a neighborhood of data points about each such data point. For each such neighborhood of data points, a projection set of polynomials is generated based on candidate polynomials. The projection set of polynomials evaluated on the neighborhood of data points is subtracted from the plurality of candidate polynomials evaluated on the neighborhood of data points to generate a subtraction matrix of evaluated resulting polynomials. The singular value decomposition of the subtraction matrix is then computed. The resulting polynomials are clustered into multiple clusters and then partitioned based on a threshold.

The invention relates to the field of rehabilitation assistance devices, in particular to a turnover prevention walking aid. The turnover prevention walking aid comprises a support. The support comprises two front supporting rods, two back supporting rods, a front gear lever and a grip. The bottoms of the front supporting rods and the bottoms of the back supporting rods are provided with trundles. Side reinforcing ribs are fixedly arranged between the bottoms of the front supporting rod and the back supporting rod on the same side. Counter weights are arranged on the side reinforcing ribs. According to the turnover prevention walking aid, the dead weight of the support is increased, and the center of gravity is lowered, so that the resisting moment generated when the support is likely to turn over is effectively increased, the overall stability of the support is improved effectively, the trip reliability of a user is improved through the support, and the turnover prevention walking aid is suitable for the old, some cripple patients and the disabled.

The invention relates to a modularized layering support device for a multi-container system. The multi-container system comprises a pressure container, at least two steam generators and at least two main pumps, wherein the steam generators are arranged around the pressure container in a center-symmetric way; the main pumps are arranged around the pressure container in a center-symmetric way; the steam generators and the main pumps are alternatively arranged around the pressure container, and are uniformly distributed around the pressure container at intervals; the steam generators are respectively connected with the pressure container through first pipelines; the main pumps are respectively connected with the pressure container through second pipelines; the modularized layering support device comprises a first support unit and a third support unit. The modularized layering support device has the advantages that the first support unit and the third support unit are used for supporting the main equipment of a reactor loop by layers, the load on the main equipment is transferred to a foundation supporter, the heat displacement produced by a reactor is released, the inertial load produced by the periodical alternating load of marine environment is resisted, and the reliability is improved.

The invention relates to a pump truck. The pump truck comprises an arm support (1), a plurality of supporting legs and a control system, wherein the arm support is hinged to a rotary table (2) througha horizontal shaft and can horizontally rotate around a vertical axis along with the rotary table (2); each supporting leg is provided with a storage device used for storing a liquid medium (4), andat least two storage devices which are arranged at intervals in the longitudinal direction of the pump truck and located on different sides in the transverse direction of the pump truck communicate with each other through a communicating pipeline and a pumping device; and the control system is used for controlling the liquid mediums (4) to flow into the storage devices on the opposite side of thearm support (1) through the pumping device in the rotating process of the arm support (1). By means of the technical scheme, the pump truck can effectively reduce the tipping risk of the pump truck and improve the stability of the pump truck.

The invention discloses a tile connecting device, and belongs to the technical field of buildings. The device comprises a first connecting part (11) which is of a plate-shaped structure, and used forconnecting two tiles (2) on the lower layer, a second connecting part (12) which is of a groove-shaped structure, is opposite to the first connecting part (11) and is used for connecting two tiles (2)on the upper layer, a connecting line (13) and locking parts (14), wherein one end of the connecting line extends out of the first connecting part (11), and the other end of the connecting line extends out of the second connecting part (12); and the locking parts (14) are arranged on the two ends of the connecting line (13) and used for locking the connecting line (13) so as to lock the first connecting part (11) and the second connecting part (12) to preset positions, and the connecting line is kept tensioned at the mounting position. The tile connecting device is small in weight, long in service life, good in seal property, high in wind resistance capacity, meanwhile, easy to mount, easy to operate and capable of greatly improving the tiled roof mounting efficiency.

The invention provides an electric wheelchair driving control method and system. According to the method, the current speed of an electric wheelchair and the intention of a user for operating a handleare detected; the possible yaw velocity of the electric wheelchair is calculated according to a target speed and a target turning radius; when the possible yaw velocity exceeds a preset value, the actual yaw velocity is controlled not to exceed the preset value by automatically controlling the rotating speeds of a left driving wheel motor and a right driving wheel motor; therefore, the control stability of the electric wheelchair is improved; the steering safety during high-speed driving is improved; and the tipping risk of the electric wheelchair is reduced. Automatic control is completed through a control algorithm set by a controller; the hardware cost does not need to be increased; and the electric wheelchair is easy to operate by a user and easy to popularize.

An invention relating to a cooker is disclosed. The disclosed invention is characterized in that the front and upper portions of a housing are opened together when a door is opened, and a tray is pulled out forward in conjunction with the opening of the door.