41results about How to "Fast support" patented technology

The invention discloses a plastic-coated wooden building template and a preparation method thereof, which relate to a building template and a preparation method thereof and mainly solve the problems that a high-cost performance building template prepared by the current preparation method is low in turnover times and poor in mechanical properties. The preparation method comprises the following steps: firstly, manufacturing a core plate by using a waste template; secondly, manufacturing a polyolefin veneer coated with non-woven fabric; thirdly, gluing double sides of a wood veneer, putting the wood veneer between the polyolefin veneer coated with the non-woven fabric and the core plate, with the same operation for upper and lower surfaces; and finally, pressing. The turnover times of the plastic-coated wooden building template is as high as 30-35 times, which is 10-17% higher than that of the current building template, so that the using cost of the plastic-coated wooden building template is reduced; the plastic-coated wooden building template has the bending strength of 52-55 MPa and an elasticity modulus of 6050-6210 MPa; the plastic-coated wooden building template is high in strength and good in toughness; the preparation method is simple, low in cost and easy to implement, and is applicable to large-scale popularization and application; and the plastic-coated wooden building template has relatively high economic and social benefits and can be applied to the building engineering.

The invention relates to a concrete support and fish-belly sill combined supporting system of a special-shaped foundation pit. The system comprises concrete supports, assembled fish-belly sills, section steel diagonal supports, corner supports and middle stand columns, wherein the first pass and the third pass of supports of the foundation pit adopt the concrete supports, and the second pass and the fourth pass of supports adopt the fish-belly sill supports; and the concrete supports and the fish-belly sill supports are vertically connected through steel stand columns in the foundation pit to form a space system. The invention additionally discloses a construction method for the concrete support and fish-belly sill combined supporting system of the special-shaped foundation pit. The construction method comprises the steps of constructing the first pass of concrete supports, roadway slabs and trestle slabs after foundation pit enclosure and stand column piling are completed; after the strength meets the requirement, downwards excavating the foundation pit to the position of the second pass of supports, i.e. the fish-belly sill supports, sequentially installing corbels, brackets, purlins, the corner supports and the fish-belly sills, and finally installing the diagonal supports. The concrete support and fish-belly sill combined supporting system of the special-shaped foundation pit and the construction method provided by the invention have the advantages that the foundation pit is ensured to be safely and quickly constructed; a larger operating space can provided, the speed of installing and removing the supports is fast and the deformation control of the foundation pit is facilitated.

The invention belongs to the technical field of underground equipment in a coal mine and particularly relates to an anchor rod transloading set which solves the problem that existing underground equipment in the coal mine cannot be suitable for mines with small section roadways and mines with coal beds in poor geological conditions. The anchor rod transloading set comprises a chassis, a transloading mechanism and a scraper conveyer. The bottom disc is provided with the transfer mechanism and comprises a main frame, a left crawler frame, a right crawler frame and a tail frame. Lifting mechanisms are respectively arranged at the top parts of the left crawler frame and the right crawler frame. The top parts of the lifting mechanisms are connected with a worktable, and the front part of the worktable is connected with a front anchor protector. A rear anchor protector is arranged at the rear part of the main frame. Temporary supports are further hinged on the left crawler frame and the right crawler frame. The invention has the beneficial effects that the anchor rod transloading set can be used for mines with small section roadways and mines with coal beds in poor geological conditions, the complete machine is arranged compactly, the structure is reasonable, the anchor protector part has high degree of automation and fast support speed, and the anchor rod transfer set has large loading capacity, strong climbing ability and can protect and transfer at the same time.

The invention discloses an anti-falling wheelbarrow with labor-saving unloading, which comprises a barrow plate, a bucket, a single wheel, a supporting rod, handles, a sliding device, a locking device and anti-falling devices, wherein the bucket is positioned above the barrow plate; the single wheel is fixed below the barrow plate through a wheel plate; the supporting rod and the handles are fixed at the same end of the barrow plate; the sliding device is used for making the bucket move back and forth on the barrow plate; the locking device is used for fixing the bucket; the anti-falling devices are arranged on two sides of the barrow plate and can be downwards unfolded and folded towards the bottom of the barrow plate. By the adoption of the structure, the wheelbarrow makes unloading labor-saving and convenient, is unlikely to turn to one side and can adapt to a complicated terrain, so that toppling of the wheelbarrow can be avoided in a process of transporting cargoes, and injury to a worker pushing the wheelbarrow is avoided.

The invention provides a building template with a high cost performance and a preparation method thereof, relates to the building template and the preparation method thereof and mainly solves the problems that the existing waste template cannot be regenerated and reused, a wood template is not easy to de-mould in a use process and the turnover time is low. The product is formed by respectively sticking one layer of a sticking layer on each one of upper and lower surfaces of a core plate. The method comprises the following steps of: taking nails and sorting the waste templates; vertically cutting; leveling; transversely combing, and vertically connecting and combing; transversely splicing; filling holes; drying; sanding double faces with a fixed thickness to prepare the core plate; preparing a non-woven fabric polyolefin sticking face; coating an adhesive on a non-woven fabric of the non-woven fabric polyolefin sticking face; and coating on the upper and lower surfaces of the core plate, and pressing to finish. The building template with the high cost performance disclosed by the invention adopts the core plate made of the waste template, solves the regeneration and reutilization problems of the waste templates, and greatly improves the cost performance of the building template; and the property that the surface activity of the polyolefin sticking face is low is utilized, the template is easy to de-mould, and the turnover time is high.

The invention relates to a heading machine, in particular to a heading machine provided with a cantilever type front canopy supporting protection device, aiming at solving the problem that the existing heading machine is not provided with the supporting protection device. The heading machine comprises a front cantilever and a speed reducing device positioned on the front cantilever, wherein the outer wall of the speed reducing device is sheathed with a canopy base, the left and the right sides of which are articulated with telescopic racks, and each telescopic rack consists of a support plate and two support legs fixed under the support plate; the front end on the upper surface of the canopy base is articulated with a rotary beam, the other end of which is penetrated with a rotating shaft vertical to the rotary beam, and the two ends of the rotating shaft are fixed with support beam bases which are provided with grooves that are internally articulated with support beams; jacks of the telescopic racks are respectively articulated between the bottoms at the two sides of the canopy bases and the telescopic racks, jacks of the rotary beams are articulated between the support plates of the telescopic racks and the rotary beams, and jacks of the support beams are articulated between the rotary beams and the rotating shafts. The heading machine can reduce the time for supporting protection, lighten the labor intensity, and effectively improve the safety factor.