44results about How to "Reduced shipping size" patented technology

A car seat is formed with a seat member pivotally connected to a base member for positional adjustment in desired reclined positions controlled by an intuitively operable adjustment mechanism. The seat back is pivotally connected to the seat member to be oriented in a shipping position or an operative position. A latching mechanism secures the seat back to the seat member in the operative position. The seat back is provided with a head rest that is vertically movable relative to the seat back to uncover routing openings in the seat back as the child grows and the head rest is positioned accordingly. The harness is routed through selected routing openings in the seat back before passing over a hanger at the top of the seat back so that the length of the harness remains constant irrespective of the positioning of the harness in conjunction with the size of the child.

The invention relates to a split type reaming bit for large-diameter raising-boring used in mining machinery and an assembly method thereof. The reaming bit for large-diameter raising-boring is of a split type structure by which the bit is split and transport dimension and weight of the bit are controlled after disassembly, which solves the difficulty of transport and assembly in a narrow roadway of a coal mine, and the reaming bit has higher stability and higher reliability under combined action of great torque, tension and impact.

The invention discloses a miniature crane, which comprises a jib and a hook. The hook is hung to the jib top by a lifting rope. The crane also includes a pedestal, a slewing mechanism and a rotary table. The slewing mechanism can slew at any angle within 360 degrees, and includes a slewing shaft and a shaft sleeve in rotation connection. The jib is hinged to the front side of the slewing shaft, the rotary table is fixed to the rear side of the slewing shaft, and the shaft sleeve is fixed on the pedestal. The pedestal and the rotary table both adopt a box structure. The inside of the rotary table is provided with a worm-gear luffing mechanism and a worm-gear hoisting mechanism. The housing of the rotary table is in rotation connection with a crank handle that is connected to the worm-gear luffing mechanism. By setting the slewing mechanism able to slew at any angle within 360 degrees, the miniature crane of the invention realizes expansion of the movement range of heavy objects from two dimensions to three dimensions.

A tension fabric display structure incorporates segmented tubular framework permitting easy on-site assembly and disassembly and includes an integral drive motor coupled to a drive shaft that is supported for rotation within a framework tube. Each one of a plurality of attraction elements suspended from the framework tube housing the drive shaft is rotationally driven by a coupling assembly connected to the drive shaft.

A self-loading and self-unloading type crawler chassis comprises a right crawler beam, a left crawler beam and a middle frame; the middle frame is connected with a main machine structure needing bearing; the middle frame is arranged between the right crawler beam and the left crawler beam and keeps an interval with the ground; the right crawler beam and the left crawler beam are detachably connected with the middle frame; the middle frame is provided with a supporting device having a folding state and an unfolding state; when in the folding state, the supporting device draws back to the middle frame and does not make contact with the ground; and when in the unfolding state, the middle frame is supported on the ground through the supporting device, the supporting device supports the whole crawler chassis and the weight of the upper portion, and the original space between the middle frame and the ground is kept. The crawler chassis and the upper main machine structure are loaded onto or unloaded from a transportation flat car through the self structure, and the self-loading and self-unloading type crawler chassis has the characteristics of being simple in structure, convenient to dismount, high in mechanism stability, low in manufacturing cost and the like.

The invention relates to a connecting joint for a beam, a column and an inclined strut of a box section of a boiler steel frame and a construction method of the connecting joint. The connecting joint comprises a joint plate, a column end plate, a beam end plate and a connecting end plate, wherein the joint plate is fixed with the inclined strut by welding; the column end plate is fixed on the joint plate by welding, and is connected with a column bolt; the beam end plate is fixed on the joint plate by welding, and is connected with a beam bolt; and the connecting end plate is fixed on the beam by welding, and is connected with the column bolt. The construction method comprises the following steps of: welding the joint plate, the column end plate and the beam end plate, and connecting the column end plate and the beam end plate with bolts; and performing welding and bolt connection on the connecting end plate. According to the invention, the joint size is reduced greatly, the requirements of other transportation tools are met, and the transportation cost is reduced.

The invention relates to the technical field of a crawler-type chassis, in particular to a cylinder slideway double-limiting telescopic crawler-type chassis. The cylinder slideway double-limiting telescopic crawler-type chassis comprises a left crawler frame, a left sliding assembly, a right crawler frame, a right sliding assembly, a center rotating frame and hydraulic oil cylinders; the left crawler frame is fixedly connected with the left sliding assembly; the right crawler frame is fixedly connected with the right sliding assembly; the left sliding assembly and the right sliding assembly are respectively connected with the center rotating frame; and the hydraulic oil cylinders are arranged between the center rotating frame and the left crawler frame as well as the right sliding assembly. According to the cylinder slideway double-limiting telescopic crawler-type chassis, the structure is easy to process; when the processing difficulty is reduced, the machining quantity is also reduced; and when the integral cylinder slideway double-limiting telescopic crawler-type chassis works, the crawler frames extend to the greatest extent to increase the earthing width so as to improve the stability of the integral cylinder slideway double-limiting telescopic crawler-type chassis in the working process; when the integral cylinder slideway double-limiting telescopic crawler-type chassis travels and transports, the crawler frames retract to the greatest extent, so that the cylinder slideway double-limiting telescopic crawler-type chassis can pass through a narrow channel, the transportation size of a drilling machine can be reduced and the cylinder slideway double-limiting telescopic crawler-type chassis is easy to use and popularize.

The invention discloses a two-prop shielding type electro-hydraulic-control top-coal caving hydraulic support. By the aid of the hydraulic support, the problems that existing four-prop hydraulic supports are stressed unevenly, damaged easily and moved slowly are solved. A top beam is in an integrated structure, two upright props which are arranged on the left and right sides are arranged between the top beam and a base, tops of two upright props are inclined forwards, an electro-hydraulic control system which is communicated with a cavity of each of the upright props is arranged inside the cavity, electro-hydraulic control systems comprise double-inlet double-return quick liquid inlet and return systems, upright props are communicated with a quick-liquid-supply hydraulically-controlled one-way valve and a hydraulically-controlled one-way valve, the quick-liquid-supply hydraulically-controlled one-way valve is communicated with an electro-hydraulic-control reversing valve, the return disconnection valve is communicated with the electro-hydraulic-control reversing valve and the hydraulically-controlled one-way valve, an automatic back-flushing filter is communicated with the quick-liquid-supply hydraulically-controlled one-way valve and the electro-hydraulic-control reversing valve, and the electro-hydraulic-control reversing valve is communicated with the hydraulically-controlled one-way valve. The hydraulic support is reasonable and reliable in structural design, the working resistance reaches 17000kN, and the automatic exploitation of fully mechanized caving units with 10-20m super high seams can be achieved.

The invention discloses a split absorbing-type heat exchange unit and a heat exchange method thereof and belongs to the field of heating, ventilating and air conditioning. The split absorbing-type heat exchange unit is composed of a hot-water absorbing-type heat pump, a conventional water-water heat exchanger and a waterway system, the hot-water absorbing-type heat pump is composed of two parts, a generator and a condenser form one part, and an absorber and an evaporator form another part; the waterway system is divided into a primary-side waterway system and a secondary-side waterway system, the primary-side waterway system is sequentially connected with the generator, a high-temperature side of the water-water heat exchanger and the evaporator and then returns to a concentrated heat source, the secondary-side waterway system is divided into two ways, one way is connected with a low-temperature side of the water-water heat exchanger while the other way of the same is connected with the absorber and the condenser, and then the two ways of secondary water join to form one way to supply heat to a user. A split structure is adopted, so that transport size of the unit is reduced effectively, convenience is brought to transporting and mounting, and comprehensive cost is lowered.

A hydraulic thruster for vessel. The hydraulic thruster is intended for incorporation into a modular vessel thruster system, and is easily installed onto, and removed from, a vessel having such system. A housing is tiltably attached to a bracket, which in turn is removably mounted to a vessel. A cylinder is rigidly attached to the housing, and a tube is extensibly and rotatably disposed within the cylinder. A thrust means is disposed at a lower end of the tube. The instant thruster incorporates positive redundant down-tilt stop means, increased extension/retraction range, reduced shipping size, and means for securely and removably attaching the thruster to a vehicle deck.

A mobile short-wave antenna system includes: an expandable antenna assembly for transmitting signals; a boom assembly hinged to the antenna assembly at one end; a rotation assembly hinged to the boomassembly; a push arm mechanism connected to the boom assembly and the rotation assembly; a push line mechanism connected to the antenna assembly and the boom assembly; and a traction assembly locatedon the other side of the rotation assembly and connected to the rotation assembly. In the mobile short-wave antenna system, the push arm mechanism drives the boom assembly to rotate and the push linemechanism drives the antenna assembly to rotate, such that the antenna assembly can be lifted to a specified height when required without the need to build a large scaffold or dismantle the built large scaffold, thereby reducing the cost. Further, the antenna assembly can be lowered back to its original position when not in use, and kept in a horizontal state under the driving of the push line mechanism, thereby effectively reducing a transportation size, facilitating transportation, and avoiding the need for aerial maintenance of the antenna assembly.

The invention relates to an internally-movable photovoltaic power station array group, including at least one photovoltaic power station array unit. A support is provided with fixing screw holes in the bottom and is fixed on the ground by fixing screws. The support is provided with connection screw holes in the bottom and is connected by connection screws, forming lower connection points between the array unit and the array group. A support plate is welded on a middle framework, has a through hole in the middle, and is connected to a through hole nut welded on the top of the support with a rotating shaft screw, forming an upper connection point between the array unit and the array group. An upper framework and a lower framework are hinged to the middle framework through a hinge. A photovoltaic assembly is placed in the upper framework, the middle framework and the lower framework and is connected with screws, so as to form the photovoltaic power station array unit or array group. The upper framework and the lower framework in the array unit and the photovoltaic assembly therein can be unfolded or folded around the middle framework, the photovoltaic assembly can be unfolded to adjust the light angle for improving the power generation efficiency, and the photovoltaic assembly can be folded to reduce the size for achieving the whole transport.

The invention belongs to the technical field of substation equipment, and particularly relates to an intelligent vehicle-mounted mobile transformer substation. The transformer substation comprises a power transformation vehicle and a power distribution vehicle connected with the power transformation vehicle, and the power transformation vehicle comprises a power transformation vehicle body, an HGIS and a main transformer, and the HGIS is installed on the vehicle body; the power distribution vehicle comprises a power distribution vehicle body, a prefabricated cabin, an electrical secondary protection chamber and a medium-voltage power distribution chamber; a control cubicle is arranged on the HGIS of the power transformation vehicle; the control cubicle is provided with an in-situ protection and measurement and control device sub-machine I; the instrument terminal box is provided with an in-situ protection and measurement and control device sub-machine II; and a medium-voltage switch cabinet in the medium-voltage power distribution room is provided with an in-situ protection and measurement and control device sub-machine III, a measurement and control device sub-machine IV, a measurement and control device sub-machine V, a measurement and control device sub-machine VI and a measurement and control device sub-machine VII. The number of cables and the number of screen cabinets between two vehicles are effectively reduced, products are highly integrated, the transportation size is reduced, safety and reliability are achieved, field installation is easy, and the intelligence andreliability of the products are improved.

A combination typed middle lamp holder comprises a front and back shell lamp holders (1) and (1a), a front bolt (2), a back plug (3), an internal core of (4) of the lamp holder and a protection cover (6), wherein the front and back shell lamp holders (1) and (1a) fix the internal core of (4) of the lamp holder through the front bolt (2) and the back plug (3); the protection cover (6) sticks the internal core (4) of the lamp holder on the front and back shell lamp holders (1) and (1a). The combination typed middle lamp holder is characterized in that: the internal core of (4) of the lamp holder is provided with a sheet contacting a spring (5). By adopting the structure of the invention, the super-long lighting fitting can be separated into two branches with the equal lengths in transportation, therefore the transported size is reduced to a half. By adopting the middle lamp holder in arranging and using, two branches of 4 feet can be very conveniently spliced into 8-feet lighting fittings and two 3-feet branches can be spliced into 6-feet lighting fittings, therefore, the long-distance transportation of the lighting fittings is not only safe, but also convenient, solving the contradictions between use and transportation.