34results about How to "Reduce structure cost" patented technology

The invention discloses a method for demounting a prefabricated part without damage in an IMS system Dai nationality dwelling major structure, which selects and marks key points on the IMS system Dai nationality dwelling major structure, and carries out controllable slow release to the prestress of a steel stranded wire in each key point, without impact and damage on the prefabricated part in the prestress release process. After a prefabricated beam and a prefabricated slab of a floor are demounted and hanged back to the ground, open-channel post-cast concrete and the steel stranded wire contained in the concrete are separated out from the prefabricated beam and the prefabricated slab for leading the prefabricated beam and the prefabricated slab to be restored. The method can realize the undamaged recovery and reuse of the prefabricated beam, the prefabricated slab and a prefabricated column when demounting the IMS system Dai nationality dwelling, and is economical and environmentally friendly, thus being suitable to demounting not only the IMS system Dai nationality dwelling but also other IMS system buildings, and having reference function for demounting non-IMS system prestress structures.

The invention provides a self-reset swinging inner barrel shock absorption water tank which comprises a base mounted on a lower support structure, outer barrel walls mounted on the base and inner barrel walls mounted in the outer barrel walls, wherein storage water is mounted between the inner barrel walls and the outer barrel walls; six self-reset swinging bearings are uniformly arranged on the base along each inner barrel wall; each self-reset swinging bearing comprises a lower lug plate mounted on the base via a base embedded part, an upper lug plate connected with the lower lug plate via a bolt and four prestress rods symmetrically arranged between the lower lug plate and the upper lug plate; inner barrel wall embedded parts with the same quantity as that of the self-reset swinging bearings are uniformly arranged at the lower ends of the inner barrel walls; the inner barrel walls are fixedly connected with the corresponding upper lug plates via the inner barrel wall embedded parts; and dampers are further arranged at the upper ends between the inner barrel walls and the outer barrel walls. The water tank has the advantages of stable anti-seismic property, good shock absorption effect, reduced structure cost, factory module production and the like.

The invention relates to a reinforced concrete hollow floor system structure, particularly relates to a prestressed hollow slab with variable rib widths and a method for constructing the prestressed hollow slab, and belongs to the field of common building structures. The prestressed hollow slab comprises upper-layer slab reinforcing steel bars (1), lower-layer slab reinforcing steel bars (2), rib beams (3), prestressed bars (4), filling materials (5) and concrete (6). The filling materials (5) are positioned between the upper-layer slab reinforcing steel bars (1) and the lower-layer slab reinforcing steel bars (2) and are permanently buried in the concrete, the prestressed hollow slab is divided into a rib beam standard region (9) and two rib beam narrowing regions (10) by region boundaries (8), the total width of the rib beam standard region is larger than or equal to 1/3 of the span of the prestressed hollow slab in long-span directions, the widths of the rib beams in the rib beam narrowing regions are smaller than or equal to those of the rib beams in the rib beam standard region, and the quantities of the prestressed bars in the rib beams in the rib beam narrowing regions are smaller than the quantity of the rib beams in the rib beam standard region. The prestressed hollow slab and the method have the advantages that the prestressed hollow slab is wide in span, good in structural reliability and earthquake resistance and excellent in economical efficiency and applicability and is light.

The invention discloses a full-automatic storage battery welding device, and belongs to the field of storage battery production. The full-automatic storage battery welding device comprises a welding machine main body, wherein a welding platform is fixedly connected to the bottom of the welding machine main body; transmission devices are fixedly arranged on the front and back of the top of the welding platform; the opposite sides of the two transmission devices are fixedly connected to rubber fixture blocks; a first conveyor belt and a second conveyor belt are respectively arranged at the leftside and right side of the welding platform; support pillars are integrally formed on the front and back of the top of the welding platform; the two support pillars are respectively located at the left sides of the two transmission devices; the tops of the two support pillars are hinged with guide plates; and two locating slots are formed in the top of the welding platform. The full-automatic welding device has low structure construction cost, is economical and practical, is simple and convenient to use, can effectively achieve the purpose of full-automatic processing, improves the welding efficiency of the storage battery, and reduces the production cost.

The invention provides an external enclosure weight-reduction pre-fabricated wall connecting joint and a construction method thereof. The external enclosure weight-reduction pre-fabricated wall connecting joint comprises a first pre-fabricated double-sided composite wall and a second pre-fabricated double-sided composite wall; the first pre-fabricated double-sided composite wall and the second pre-fabricated double-sided composite wall are spliced in the vertical direction and are connected and fixed through a cast-in-situ beam; inserting ribs and partition boards are disposed at the upper endof the first pre-fabricated double-sided composite wall; the inserting ribs are buried in the first pre-fabricated double-sided composite wall and are partially exposed out of the upper end of the first pre-fabricated double-sided composite wall; the portions, exposed out of the first pre-fabricated double-sided composite wall, of the inserting ribs penetrate through the partition boards to extend into the cast-in-situ beam; a first pre-buried part is buried in the lower end of the second pre-fabricated double-sided composite wall; a second pre-buried part is buried in the upper end of the cast-in-situ beam; the second pre-fabricated double-sided composite wall is fixed to the cast-in-situ beam in a matched mode through the first pre-buried part and the second pre-buried part; and accordingly construction and popularization of a pre-fabricated enclosure wall are facilitated.

The invention discloses a rail type fish collection tank dam feeding system. The system comprises a fish collection tank, a lifting car, a winch, a pulling cable, rails, a lifting platform, an inclined table and anchor blocks; the inclined table is located between the lifting platform and the anchor blocks, and the fish collection tank is arranged on the lifting car; the winch is mounted on the lifting platform and is connected with the lifting car through the pulling cable; the two symmetric rails are arranged and are arranged on the inclined table in a manner of being symmetric about the pulling cable; and an overhauling steel ladder is further arranged on one side of the inclined table, and the anchor blocks used for supporting the pulling cable are arranged on the lifting platform and the inclined table. A rail type fish collection tank lifting structure is adopted, rapid and stable lifting and dam feeding of the fish collection tank at the downstream position of a high-dam large reservoir under the large-fall condition can be achieved, and therefore the aims of fish passing of the upstream position and the downstream position of a high dam and fish gene exchange are achieved; and the adverse effect of development of water conservancy and hydropower engineering on the aquatic environment is effectively relieved, and the powerful technology support is provided for building the green environment-friendly water conservancy and hydropower engineering.

The invention discloses a self-centering pre-stressed concrete framework floor slab structure, which comprises spans with the quantity of N which are horizontally arranged, wherein each span comprises four main beams, secondary beams with the quantity of M, four framework columns and floor slabs, wherein the main beams are arranged between two adjacent framework columns through a pre-stressed steel stranded wire, each secondary beam is arranged between two opposite main beams, and the floor slab is arranged above the main beams and the secondary beams; every two adjacent spans share one main beam and two framework columns, in one of the spans, the secondary beams and the two main beams which are connected with the secondary beams are respectively and fixedly connected with the floor slab through a tightening device, and the rest two main beams are connected with the floor slab through a sliding device; and in each span of the rest spans, the main beams and the secondary beams are respectively connected with the floor slab through the sliding device. Under the action of single-direction earthquake, due to the adoption of the concrete framework floor slab structure, the damage to the self-centering pre-stressed concrete framework caused by the restriction effect of the floor slab can be reduced.

The invention discloses a detachable high-temperature oil pump bracket. The detachable high-temperature oil pump bracket comprises a fixing plate; a mounting body is mounted on the fixing plate, a placement frame is mounted on the mounting body, and the placement frame is used for mounting a high-temperature oil pump; the placement frame is mounted on the mounting body, and a driving shaft is horizontally mounted on the mounting body in an inserted mode; a driving piece is fixedly mounted on the driving shaft, and the driving piece is of a circular sheet structure; a circular hole is formed inthe center of the driving piece, and a plurality of spike-shaped teeth are arranged on the circumference of the driving piece; and the driving shaft runs through the circular hole in the center of the driving piece and is fixedly connected with the circular hole, and one end of the driving shaft is the connecting end which is used for being connected with a wrench. The detachable high-temperatureoil pump bracket has the beneficial effects that a bracket structure can be easily and rapidly dismounted and mounted.

The invention relates to a permanent magnet capable of axially adjusting a uniform field, which is characterized in that the permanent magnet comprises base plates and magnetic rings, the base plate is annular, N + 1 layers of base plates and N layers of magnetic rings are alternately overlapped from bottom to top, the first layer of base plate is used as a bottom plate and is positioned at the lowest part of the magnetic ring, and the N + 1 layer of base plate is used as a cover plate and is positioned at the uppermost part of the magnetic ring; the N + 1 layers of base plates are fixedly connected in sequence from bottom to top, so that the N layers of magnetic rings are stacked to form a column type permanent magnet with an internal cavity, the internal cavity of the column type permanent magnet is a uniform magnetic field, and N>2 . According to the structure, only the heights of part of the magnetic blocks need to be finely adjusted, less magnetic materials are used, the weight and manufacturing cost of the permanent magnet structure are reduced, and the phenomenon of excessive compensation is prevented. Therefore, the permanent magnet provided by the invention can generate a magnetic field with high magnetic field intensity and high uniformity in a miniaturized instrument.