34 results about "Short foot" patented technology

The invention relates to the field of fowl breeding, in particular to the matching technical field of low-speed type extra-superior broiler chickens. The method relates to progenitor generations, parent generations and commodity generations. The method comprises the steps that as for the progenitor generations, cocks and hens of Guangxi sanhuang chickens are selected, and cocks of short-foot yellow chickens and hens of low-speed recessive white-feather chickens are selected for constituting first male lines and female lines; as for the parent generations, the cocks of the short-foot yellow chickens and the hens of the recessive white-feather chickens hybridize, and F1-generation yellow-feather chickens are obtained; as for the commodity generations, the cocks of the Guangxi sanhuang chickens and the hens of the F1-generation yellow-feather chickens hybridize, and the F2-generation slow-speed extra-superior yellow-feather local chickens are obtained. The yellow-feather local chickens bred in the method not only can keep body types and appearances of traditional yellow-feather local chickens, but also can keep taste of chicken and eggs, and production cost can be greatly reduced. Compared with the traditional yellow-feather local chickens, growth speed is increased by more than 30%, egg laying capacity of the parent generations is increased by more than 26%, the rate of survival is increased by more than 3.5%, the feed conversion ratio is reduced by more than 0.17%, and the defects that breeding hens have high brooding capacity and the low laying rate are overcome. In addition, the yellow-feather local chickens bred in the method has delicate meat quality and good mouth feel, breeding profits are increased, and further development of the low-speed type extra-superior chicken industry in China is promoted.

A foot rest for a post-hole digger and post-hole diggers using the foot rest are disclosed. The foot rest includes two portions, one attached to each shaft of the post-hole digger. The two portions have structure that allows them to engage one another when the two shafts of the post-hole digger are vertical. The foot rest does not extend beyond the bore diameter of the post-hole digger. Thus, in order to keep the user's feet on the relatively short foot rest, the contact surface of the foot rest may be angled. In some embodiments, the foot rest may be symmetrical, so that either side may be used as the upper surface. A post-hole digger including the foot rests typically includes at least two foot rests, spaced from one another and facing different directions along the shafts of the tool.

The invention discloses a foot roll support frame with multi-section short-side foot rolls. The inner wall surface (3) of a bracket side wall (11) is provided with more than three foot roll components (g) in sequence from up to down; each foot roll component comprises a short side foot roll (1), a foot roll bracket part (5) and a buffer spring (4); the foot roll bracket part (5) consists of two oppositely parallel root roll support arms (6), a cross frame (5a) and a strut (5b); one end of the buffer spring is fixed on the inner wall surface; the other end of the buffer spring is connected with the strut; the strut deviates from the center of the cross frame and is formed on one end of the cross frame; the short side foot roll comprises a short foot roll (1a), a medium foot roll (1b) and along foot roll (1c) which are respectively connected into a whole body by two shaft necks; the shaft necks are respectively, rotatably and freely arranged on the other ends of the two foot roll support arms, and are mounted as follows: the shaft necks in each pair of foot roll components are staggered with the shaft necks of the neighboring foot roll component. The foot roll support frame with the multi-section short-side foot rolls can inhibit the exceeding corners at the side surface of a casting blank shell, improve the angle quality of the casting blank, avoid bleed-out accident, and improve the production safety.

The invention provides a method for preventing a climber from falling in the process of climbing a tower. The method has the advantages that the structure is simple, operation is convenient, and safety precautions are taken. The method comprises the steps that a row of short foot nails which are evenly arranged in an up-down mode are fixedly welded to the surface of one side of angle steel of the iron tower to be climbed, and a row of long foot nails and short foot nails are fixedly welded to the surface of the other side of the angle steel, wherein the row of long foot nails and short foot nails are evenly and alternately arranged in an up-down mode; the foot nails on the two side faces of the angle steel are arranged alternately; a safety rod is mounted at the top ends of the long foot nails through fixtures; a protection rope is fixedly arranged at the back side of a climbing protection safety belt and provided with two lead-out ends which are respectively provided with a snap ring; a worker ties the safety belt well, buckles the first snap ring to the first section of the safety rod and then starts to step on the foot nails to climb the tower upwards; the worker buckles the second snap ring to the second section of the safety rod when arriving at the second long foot nail, and simultaneously picks off the first snap ring; the worker repeats the steps again and again until the worker arrives at a designated position; the worker can conduct reverse operation to get to the ground after maintenance; the worker unties the safety belt after going back to the ground.

A device with weighing and automatic blanking functions comprises a control device, a conveying device, a blanking door, communication lines, push rod hinge parts, an electric push rod, a door hinge, a hopper, a short foot plate, a weighing sensor, a hopper seat, foot wheels, a long foot plate and a connection plate. The device with the weighing and automatic blanking functions is characterized in that the short foot plate and the long foot plate are arranged at the bottom of the hopper, the weighing sensor is connected to the lower portions of the short foot plate and the long foot plate and connected with the hopper seat, the connection plate is arranged on the long foot plate, the foot wheels are arranged on the hopper seat, the conveying device is arranged below the hopper and positioned on the hopper seat, the hopper is connected with the blanking door through the door hinge, the blanking door is connected with the electric push rod through the push rod hinge part, the electric push rod is connected with the connection plate through the push rod hinge part, and the control device is connected with the weighing sensor and the electric push rod through the communication lines. The device has the weighing and automatic blanking functions, no material is lost in use, and labor intensity of operators is reduced.

The invention provides an LED wick welding method. The LED wick welding method includes the following steps: fixing the LED stem in the stem clip of the stem clamping device, performing a shaping process on the four short-leg guide wires and the four long-leg guide wires of the LED stem; The LED stem clip is inclined downward to a predetermined angle, so that a long-leg guide wire and a staggered short-leg guide wire of the LED stem are located on a horizontal straight line, and the LED light bar is positioned between the long-leg guide wire and the short-leg guide wire. Between; reset the LED stem clamp to the horizontal position, and then use the unloading mechanism to remove the welded LED wick. In the above-mentioned LED wick welding method, since the stem clamping device is tilted during the welding process so that the long-leg guide wire and the staggered short-leg guide wire are located on the same horizontal plane, the welding process for the spiral LED wick is realized, and the automatic welding operation is realized. The working efficiency is greatly improved, and the production cost of the whole LED wick is reduced.

The invention discloses a retractable straightedge, which comprises a ruler body with scales, and the ruler body is composed of at least two short rulers nested with each other, and the ruler body is coated with a fluorescent layer. The advantages of the present invention are: (1) The ruler of the present invention is composed of at least two short rulers that are nested with each other. The short rulers can be stretched and contracted, which is convenient for use and storage, and is convenient and practical. (2) The body of the ruler is coated with a fluorescent layer, so that when in use, even in a dark environment, people can still observe the scale on the ruler board through the light emitted by the fluorescent strip, so as to achieve the effect of accurate measurement. Convenient and practical.

The invention relates to shoe pads and a method for assorting the shoe pads with shoes. The shoe pad comprises a shoe pad body, a shoe cavity and a boat-shaped shoe sole. The shoe pad body is a novel one including an instep pad and a shock pad; the shoe is a double-height-correction shoe formed by connecting the boat-shaped shoe sole with an upper and provided with a high sole and a high cavity, and the boat-shaped shoe sole is arranged in a manner that the outer sole is higher than the inner sole; the instep pad is fitted under a shoe upper and above the instep of the double-height shoe capable of accommodating the longer foot, and the shock pad is fitted above the inner sole of the upper and under the sole of foot of the double-height shoe capable of accommodating the shorter foot; therefore, the double-height shoes assorted with the shoe pads are mainly suitable for the crowd with two feet different in length, feet balance can be corrected, shoes appearance can be improved, disabled limb defects can be shielded, board feet walking can be alleviated, comfortableness and stability in wearing can be achieved, and production cost can be lowered.

A storage box connecting piece for an instrument board is composed of a shaft component (1) and a clamping piece (2). The features are that the shaft component (1) is an integrated injection molding part and is composed of a mounting plane (3) and a shaft arm (4); the shaft arm (4) is arranged in the middle of the plane (3), and mounting holes (5) are formed in the four corners of the plane (3); ashaft hole (6) is formed in the top end of the shaft arm (4), and a clamping piece (2) is arranged in the shaft hole (6) in a tight fit mode. The shaft arm (4) is L-shaped, and the L-shaped short foot is arc-shaped; the shaft hole (6) is arranged at the top end of the L-shaped long foot of the shaft arm (4), and the shaft hole (6) and the arc share the center of a circle. The storage box connecting piece is simple in structure, convenient to install and machine, and high in forming rate; direct contact between the shaft hole and the storage box in the using process is prevented through the clamping piece, and the service life of the shaft component is prolonged.

The invention discloses a brake retaining device of an electric sweeper, which comprises a bracket, a long foot bar, a short foot bar, a spring and an inhaul cable. A right end of the long foot bar is connected with the inhaul cable, and the long foot bar is hinged with the bracket through a pin to form a lever type brake mechanism. The short foot bar is installed on the long foot bar through a mandrel and a hinge pin, the downside of the short foot bar is provided with a ratchet to mesh with a fan-shaped ratchet wheel raised on the long foot bar; and the short foot bar of a cantilever keeps the position under the action of the inhaul cable and locks the long foot bar, therefore the purpose of parking after brake is realized. The integrative installing structure of the long foot bar and the short foot bar is located in the same one foot control scale, when the long foot bar is stepped to carry out the brake, the short foot bar also can be stepped; the brake retaining device is convenient to operate, good in timeliness, likely to lock, and stable and reliable in parking. The invention is applicable to be matched with various sized sweepers as well as ordinary locomotives.

The invention provides a foot rest component, which is used for placing a pressing plate of a hot press in production line of fire-proof plates. The foot rest component comprises a long foot plate, a medium foot plate and a short foot plate, wherein the long foot plate is arranged close to a machine plate frame; the medium foot plate is arranged on the outer side of the long foot plate; and the short foot plate is arranged on the outer side of the medium foot plate. The foot rest component has the advantages of operation stability, good effect, safety, reliability and the like.

The invention discloses a manufacturing process for a wooden tray. The manufacturing process comprises the following steps that boards and foot piers are selected, wherein the boards and the foot piers are checked by a board flaw detector to be qualified; the boards which are used as a supporting board are placed on a workbench in sequence, two parallel connecting boards are placed below the boards and perpendicular to the boards, and gun nails are used for fixation from top to bottom; the supporting board is taken up, the foot piers are placed on the corresponding positions of the workbench in sequence, and the long foot piers are fixed under the supporting board through the gun nails; and then the short foot piers are fixed under the connecting boards through the gun nails, V-shaped grooves are formed in the back faces of the two ends of a reinforcing surrounding board so that the two ends of the reinforcing surrounding board can form a square frame capable of containing the short foot piers in a surrounding mode, and the two short foot piers on the same side of each connecting board are correspondingly accommodated in the square frame of the reinforcing surrounding board and aretransversely fixed through the gun nails. The wooden tray made by the manufacturing process for the wooden tray is strong and firm, and good in bearing performance.

The invention discloses an efficient extending posture adjusting movable trestle. To overcome the defects that the existing tunnel construction span is small, moving is difficult and the efficiency is low, each row of main bridges of the efficient extending posture adjusting movable trestle comprises main bridge front sections and main bridge rear sections. Main bridge connecting mechanisms are arranged on the upper portions of the connecting positions of the main bridge front sections and the main bridge rear sections, posture adjusting arms are arranged on the lower portions of the connecting positions of the main bridge front sections and the main bridge rear sections, and the posture adjusting arms are connected with arm oil cylinders. The front portions of the main bridge rear sections are provided with long supporting feet and short supporting feet, and the long supporting feet and the short supporting feet are connected with long-foot oil cylinders and short-foot oil cylinders correspondingly. Movable supports are arranged between the two rows of main bridges. The efficient extending posture adjusting movable trestle is used for tunnel construction, large span line production and continuous construction can be achieved, automatic architecture moving and posture automatic adjusting and controlling are achieved, installation and moving are easy, moving is flexible, architecture is rapid, the efficiency is high, the structure is compact, the occupied area is small, the manufacturing and using cost is low, and the efficient extending posture adjusting movable trestle is particularly suitable for construction of a single track tunnel with a narrow space under a complex geology condition.