38results about How to "Few rods" patented technology

A folding mechanism for a folding table is described. The folding table includes a table top, a supporting portion and a leg portion with two legs and a fixing rod mounted between the two legs. The two legs form a rotatable connection with the table top. The supporting portion includes a supporting rod and a locking member. The locking member has a U-shaped sheet and a locking element disposed in the supporting rod. The U-shaped sheet includes a central vertical sheet and two side vertical sheets. The central vertical sheet and the two side vertical sheets are fixed to the fixing rod. The central vertical sheet has a sliding opening for accommodating the supporting rod so that the supporting rod rotates relative to the sliding opening during sliding. One end of the supporting rod is rotatably connected to a lower surface of the table top. The other end passes through the sliding opening. When the folding mechanism is in a locked position, the locking element in the supporting rod engages the two side vertical sheets of the U-shaped sheet fixed to the fixing rod.

A baby pushing cart, the carriage of which comprises underframe. A first front wheel carrier, front-end of which is rotational connected with front-end of the underframe through first rotating joint. A second front wheel carrier, front-end of which is rotationally connected with front-end of the underframe through second rotating joint. A first push-rod, the underpart of which is rotationally connected with back-end of the first front wheel carrier. A second push-rod, the underpart of which is rotationally connected with back-end of the second front wheel carrier. Back wheel bracket is formed by rotational connection of a first back wheel carrier and a second back wheel carrier in place they decussates, which is rotational connected with back of the underframe through fifth rotating joint. Number of the carriage rods is small, and the structure is simple. Volume of the cart folded is small and is convenient for carrying, the transport cost is also reduced.

The invention relates to a folding baby stroller comprising a frame, front wheel components, rear wheel components and locking mechanisms used for locking the frame in an unfolding position. The frame comprises bilaterally symmetrical push rods, front wheel supports, rear wheel supports and support frames. The lower end portions of the push rods are provided with rear wheel support connecting pieces, the rear wheel supports are connected with the rear wheel support connecting pieces in a pivoted manner, first connecting pieces are arranged on the push rods, second connecting pieces are arranged on the front wheel supports, one ends of the support frames are connected with the first connecting pieces in a pivoted manner while the other ends of the same are connected with the second connecting pieces in a pivoted manner, third connecting pieces are arranged on the rear wheel supports, the locking mechanisms are arranged in the third connecting pieces, clamp pin seats are arranged on the front wheel supports, the third connecting pieces are matched with the clamp pin seats and can move relatively to the clamp pin seats, and a four-connecting-rod mechanism is formed by the push rods, the rear wheel supports, the front wheel supports and the support frames. Via a brand new framework design, rods of the frame of the baby stroller are reduced, operation for folding the baby stroller is facilitated, and the folded baby stroller is small in size and convenient to carry.

The invention relates to a trolley for children, comprising a frame. The frame consists of a front wheel rack, a rear wheel rack, a push rod, a sliding element, a support rod of the rear wheel rack and a support rod of the push rod, wherein the lower end part of the rear wheel rack is rotationally connected with the rear end part of the front wheel rack, the front end part of the push rod is rotationally connected with the upper end part of the rear wheel rack, and the sliding element capable of sliding along the rear wheel rack up and down is arranged on the rear wheel rack; one end part of the support rod of the rear wheel rack is rotationally connected with the front part of the front wheel rack, one end part of the support rod of the push rod is rotationally connected with the front part of the push rod, the other end part of the rear wheel rack is rotationally connected with the sliding element, and the other end part of the support rod of the push rod is also rotationally connected with the sliding element. When the frame of the trolley is locked in an unfolding position, the push rod, the rear wheel rack and the support rod of the push rod form a triangle, and the front wheel rack, the rear wheel rack and the support rod of the rear wheel rack form another triangle, therefore, the frame of the trolley has high rigidity in the unfolding position, less rods and simple structure.

A folding mechanism comprising a table top (1), a leg portion (2) and a supporting portion (3), said supporting portion comprising at least a supporting rod (32) and a locking member (31) connected to said leg portion, one end of said supporting rod rotatably connected to the lower surface of the tabled top and the other end connected to the locking member, the supporting rod formed a rotatable and slidable connection with the supporting portion so that a folding mechanism is formed by the table top, leg portion and the supporting portion. A folding table is also disclosed.

The invention relates to a game window frame, comprising open window frame and folded window frame and cloth cover set on said window frame; said window frame comprises upper frame, upper part and a plurality of bracing frame which are set in rotary direction to upper frame, when said window frame is open, the lower parts of said bracing frame are outside of shadow of upper frame on the horizontal surface, when window frame is folded, the lower parts is near to upper frame. The lower parts of bracing frame are outwardly movable when said window frame is open, so the window frame is quite stable and saves frame. The invention is characterized by simple structure, little bar and low cost.

The invention provides a bidirectional orthohexagonal grid structure, and further provides a construction method of the bidirectional orthohexagonal grid structure. The bidirectional orthohexagonal grid structure is a spatial grid structure and comprises a plurality of chord members, web members and joints, and the chord members and the web members intersect at the joints and are the same in length; the chord members, the web members and the joints constitute regular hexagons, and the multiple regular hexagons constituted by the chord members, the web members and the joints are tightly arranged to form honeycomb plane layers; and the multiple plane layers which are parallel at equal intervals exist in the two mutually-perpendicular directions of the spatial grid structure correspondingly.The bidirectional orthohexagonal grid structure has the beneficial effects that compared with a traditional grid structure, joint structures of the bidirectional orthohexagonal grid structure are simple, member bars at the joints are few, one joint is only connected with the corresponding five member bars, thus the using amount and the self-weight of materials are decreased, the mounting labor intensity is relieved, and the cost is lowered.

The double-wire bow collector type trolleybus collecting pole used in city public traffic includes bottom frame, collecting pole, pull rod, bow raising spring, balance rod, head seat cross rod, cylinder, top cross rod, electrically conducting top sliding board, insulating seat, insulating rod and top spring. The four parts including bottom frame, collecting pole, pull rod, balance rod and head seat cross rod constitute one parallelogram link rod mechanisms. The electrically conducting top sliding board is separated by the middle insulating rod into two current collectors fixed via the insulating seat on the top cross rod; and the top cross rod is connected flexibly to the head seat cross rod, with two ends being connected via the top spring. When the low arm rod is oscillated by the cylinder on the bottom frame and the pantograph raising spring, the electrically conducting top sliding board will ascend or descend. The present invention has less network restriction to trolleybus, good contact performance, etc.

The invention relates to a collapsible child cart, a cart frame of which comprises side brackets positioned on both sides, and a seat, wherein, the side brackets are symmetrical; each bracket comprises a front wheel bracket, a rear wheel bracket and a cart handle rod; the end part of the rear wheel bracket, and the lower end part of the cart handle rod are both connected with the rear end part ofthe front wheel bracket in a rotary form; the two side brackets are connected by a cross supporting frame; a sliding member is arranged on the front wheel bracket along the length direction in a sliding form; the cross supporting frame is formed by crossing a first rod member and a second rod member and through pivot joint at a crossing position; the two front end parts of the cross supporting frame are respectively connected with the sliding member in a rotary form, and the two rear end parts are respectively connected with the two side brackets in a rotary form; the end part of the cart handle rod is fixedly connected with the sliding member through a first connection rod; the end part of the rear wheel bracket is fixedly connected with the sliding member through a second connection rod;the rear end part of the seat rod at the side part, which forms the seat, is connected with the side brackets in a rotary form; and the seat rod is fixedly connected with the first connection rod which is on the same side. The invention has the advantages of convenient folding, small folding volume and low cost.

The invention relates to a trolley for children, comprising a frame. The frame consists of a front wheel rack, a rear wheel rack, a push rod, a sliding element, a support rod of the rear wheel rack and a support rod of the push rod, wherein the lower end part of the rear wheel rack is rotationally connected with the rear end part of the front wheel rack, the front end part of the push rod is rotationally connected with the upper end part of the rear wheel rack, and the sliding element capable of sliding along the rear wheel rack up and down is arranged on the rear wheel rack; one end part of the support rod of the rear wheel rack is rotationally connected with the front part of the front wheel rack, one end part of the support rod of the push rod is rotationally connected with the front part of the push rod, the other end part of the rear wheel rack is rotationally connected with the sliding element, and the other end part of the support rod of the push rod is also rotationally connected with the sliding element. When the frame of the trolley is locked in an unfolding position, the push rod, the rear wheel rack and the support rod of the push rod form a triangle, and the front wheel rack, the rear wheel rack and the support rod of the rear wheel rack form another triangle, therefore, the frame of the trolley has high rigidity in the unfolding position, less rods and simple structure.

The support comprises a vertical rod assembly and a supporting leg assembly, a vertical rod of the vertical rod assembly is arranged in a vertical rod sleeve in a sliding and penetrating mode, the upper end of the vertical rod is connected with a reading frame panel, and fixing supporting legs of the supporting leg assembly comprise a left fixing supporting leg, a right fixing supporting leg and a reinforcing cover which is arranged above the left fixing supporting leg and the right fixing supporting leg in a covering mode and enables the left fixing supporting leg and the right fixing supporting leg to be connected into a whole. The middle of the reinforcing cover is connected with the bottom of the vertical rod sleeve, a rotating supporting leg of the supporting leg assembly comprises a front rotating supporting leg, a rear rotating supporting leg and a disc portion, the front rotating supporting leg and the rear rotating supporting leg are arranged in parallel in a staggered mode, the disc portion is located below the reinforcing cover and integrally connected with the reinforcing cover, and the lower end faces of the left fixing supporting leg, the right fixing supporting leg, the front rotating supporting leg and the rear rotating supporting leg are located on the same plane. The height of the panel can be adjusted through sliding of the vertical rods, a larger supporting plane can be provided through rotation of the rotating supporting feet, the stability during use is enhanced, the use effect is good, the supporting force is high, the stability is good, the application range is wide, the number of rod pieces is small, and the structure is simple.

The invention relates to a bidirectional folding vehicle. The trammer frame comprises a first front wheel support; a second front wheel support, of which the lower part set with the lower part of the first front wheel support in rotation; a first pushing bar and a second pushing bar, of which lower parts are connected with the upper of the first front wheel support and the upper the second front wheel respectively; rear wheel support formed by cross rotary connection of a first rear wheel support and a second rear wheel support; connecting seat connected with the first rear wheel support and the second rear wheel support in rotation respectively; a first bottom frame and a second bottom frame, of which rear ends are connected with the connecting seat in rotation respectively; and locking device. The upper of the first pushing bar is set with the upper of the second pushing bar in rotation. The upper of the first rear wheel support is set with the lower of the first pushing bar in rotation. The upper of the second rear wheel support is set with the second pushing bar in rotation. The front end of the first bottom frame is set with the first front wheel support in rotation. The front end of the second bottom frame is set with the second front wheel support in rotation. The bar number of trammer frame is few and the cost is low.

The invention relates to a folding release joint and a stroller for children. The folding release joint includes a shell, a base plate fixed in the shell, a first driving piece and a second driving piece pivotally connected to the base plate and arranged on the base plate. The locking mechanism on the substrate, the first driving piece is provided with a first rotating shaft, the first driving piece is provided with a first shaft hole for installing the first rotating shaft, and the second driving piece is provided with a second rotating shaft , the second driving piece is provided with a second shaft hole for installing the second rotating shaft, a connecting piece is connected between the first rotating shaft and the second rotating shaft, and corresponding openings are opened on the first driving piece and the second driving piece There are overlapping first locking grooves and second locking grooves, the locking mechanism is installed on the base plate, and the locking mechanism can be inserted into the first locking groove and the second locking groove simultaneously to realize the folding release joint locking.

The invention relates to a folding baby stroller comprising a frame, front wheel components, rear wheel components and locking mechanisms used for locking the frame in an unfolding position. The frame comprises bilaterally symmetrical push rods, front wheel supports, rear wheel supports and support frames. The lower end portions of the push rods are provided with rear wheel support connecting pieces, the rear wheel supports are connected with the rear wheel support connecting pieces in a pivoted manner, first connecting pieces are arranged on the push rods, second connecting pieces are arranged on the front wheel supports, one ends of the support frames are connected with the first connecting pieces in a pivoted manner while the other ends of the same are connected with the second connecting pieces in a pivoted manner, third connecting pieces are arranged on the rear wheel supports, the locking mechanisms are arranged in the third connecting pieces, clamp pin seats are arranged on the front wheel supports, the third connecting pieces are matched with the clamp pin seats and can move relatively to the clamp pin seats, and a four-connecting-rod mechanism is formed by the push rods, the rear wheel supports, the front wheel supports and the support frames. Via a brand new framework design, rods of the frame of the baby stroller are reduced, operation for folding the baby stroller is facilitated, and the folded baby stroller is small in size and convenient to carry.

The invention discloses a baby stroller capable of single and double persons changing, which comprises a front wheel support, a rear wheel support, a push rod and a U-shaped cushion frame, wherein front branch pipes at two sides of the front wheel support are inserted in rear branch pipes at two sides of the rear wheel support, a first locking device is arranged in the front branch pipe, a first upper locking hole and a second upper locking hole for the first locking device to be locked are arranged on the rear branch pipe, the front part of the side pipe of the U-shaped cushion frame is fixed on the front wheel support, the rear part of the side pipe is arranged in a locking piece of the rear wheel support in a sliding and penetrating manner, a second locking device is arranged in the locking piece, the side pipe of the U-shaped cushion frame is provided with a first lower locking hole and a second lower locking hole for the second locking device to be locked, an unlocking device for simultaneously unlocking the first and second locking devices is arranged on the front wheel support, a cushion plate is connected between two locking pieces by pins, and a rear transverse pipe of the U-shaped cushion frame is provided with a fastener for fastening the cushion plate. The baby stroller can adjust the number of seats as required, and is very convenient for changing operation.

The present invention discloses a folding baby cart, which comprises a cart frame, front wheel assemblies and back wheel assemblies, wherein the cart frame comprises an upper push rod, eudipleural lower push rods which are respectively arranged eudipleurally, a front support frame, a back support frame, a bottom frame pipe, a front connecting rod and a back connecting rod, the front connecting rod is connected between the two front wheel assemblies, the back connecting rod is connected between the two back wheel assemblies, a connecting element is fixed on the lower push rod, an upper joint of the back support frame at the upper end of the back support frame is in pin connection with the connecting element, a lower joint of the back support frame at the lower end of the back support frame is in pin connection with the back end of the bottom frame pipe, the front end of the bottom frame pipe is fixedly connected with the front connecting rod, the front part of the bottom frame pipe is in pin connection with the lower joint of the front support frame at the lower end of the front support frame, the upper end of the front support frame is provided with an upper joint of the upper support frame, the lower end of the lower push rod is provided with a lower joint of the push rod, and the lower joint of the push rod is in pin connection with the upper joint of the front support frame. The folding baby cart provided by the present invention has the advantages that the structure is very simple, the whole cart has few rods, the interference caused by too many rods during folding is avoided, and at the same time, the production cost is reduced.

The invention discloses a one-time cantilevered construction method for the full section of a box girder of a long-span girder bridge, belonging to the technical field of bridge construction. The construction method comprises the steps of installing a hanging basket in place; setting up a mold for the hanging basket; binding steel bars, prestressed steel bars and pipes Installation; installation and reinforcement of inner formwork; concrete warehousing and material distribution system installation beam section concrete cantilever symmetrical pouring; The invention solves the drawbacks of the previous step-by-layer pouring process that construction joints between layers need to be provided and the construction period is too long, and ensures the construction quality of the box girder.

The invention discloses a shuttle-type rocker arm suspension mechanism for a four-wheel detection vehicle, which relates to a suspension mechanism for a four-wheel detection vehicle, and aims at the problems of a moving system of a passive rocker arm type rhombic four-wheel moon vehicle, namely coupling influence of terrain where a front wheel, a left wheel and a right wheel are positioned to thepose of a vehicle body, poor stability of the vehicle body, and limited moving direction. A longitudinal rod is positioned right above a first wheel and a third wheel, two ends of the longitudinal rod are fixedly connected with a first steering device and a third steering device which are hinged with the wheel shafts of the first wheel and the third wheel respectively, two ends of a transverse rod are positioned right above a second wheel and a fourth wheel and positioned below the longitudinal rod, the two ends of the transverse rod are fixedly connected with a second steering device and a fourth steering device which are hinged with the wheel shafts of the second wheel and the fourth wheel respectively, and the transverse rod and the longitudinal rod are hinged with a chassis respectively. The shuttle-type rocker arm suspension mechanism has isotropy characteristics, eliminates coupling influence of the terrain where each wheel is positioned to the pose of the vehicle body, has goodstability of the vehicle body, and can be used for a planet probe vehicle, an unmanned probe vehicle under severe environment and a superior toy car.

The invention provides a baby carrier which can be folded breadthwise. A go-cart bracket of the baby carrier comprises a first front wheel bracket, a second front wheel bracket rotationally arranged with the first front wheel bracket, a first handspike with the lower end part rotationally connected with the upper end part of the first front wheel bracket, a second handspike with the lower end partrotationally connected with upper end part of the second front wheel bracket, a first rear wheel bracket with the upper end part rotationally connected with the lower end part of the first handspike,a second rear wheel bracket with the upper end part rotationally connected with the lower end part of the second handspike, a first seat post arranged between the first front wheel bracket and the first rear wheel bracket, and a second seat post arranged between the second front wheel bracket and the second rear wheel bracket, wherein, the first handspike and the second handspike are arranged ina rotational way, the first rear wheel bracket and the second rear wheel bracket are intersected and rotationally connected at the intersecting position. Due to the reasonable design of the go-cart bracket, the number of post members is small, therefore, the structure of the baby carrier is simple, the production cost is low and the appearance is concise and beautiful.