32results about How to "Firmly restrained" patented technology

A fixing mechanism includes a first engaging portion, a base, a first latch and a resilient component. The first engaging portion is disposed on a frame, the base is disposed on a casing, and the first latch is slidably disposed on the base. The first latch includes a first body, a second engaging portion and an inclined structure. The second engaging portion is disposed on the first body to engage with the first engaging portion, so as to constrain a movement of the frame relative to the casing. The inclined structure is disposed on the first body. The first engaging portion can slide relative to the inclined structure, so as to move the frame away from the casing. Two ends of the resilient component are respectively connected to the first latch and the base. The resilient component drives the second engaging portion to engage with the first engaging portion.

The invention discloses a vegetable greenhouse with ventilation and buffer functions. The vegetable greenhouse comprises a greenhouse back wall, a greenhouse framework and greenhouse thin film, the greenhouse framework comprises a greenhouse front arc frame and a greenhouse back arc frame, and a ventilation bracket is fixed to the upper end of a greenhouse back wall; the outer side of the ventilation bracket is sleeved with a wind shielding quit, the outer side of the greenhouse front arc frame is fixedly covered with the greenhouse thin film, and the outer side of the greenhouse back arc frame is sleeved with a ventilation quit. According to the vegetable greenhouse, a ventilation structure in a bonnet shape is arranged, cold and warm air go in and go out of the ventilation structure in abuffer manner during the process of letting in fresh air by utilizing the ventilation structure, during the process of letting in the fresh air, the cold air entering into the ventilation structure is firstly mixed with the warm air discharged from the ventilation structure in the ventilation structure, and after the cold air is heated, the heated cold air enters inside the greenhouse, thereby effectively solving the problems that letting in the fresh air causes growth and nutrition problems of the vegetable located at the draught positions.

The invention relates to the field of garden construction, in particular to a positioning auxiliary device for garden flower bed construction, which comprises a positioning column for coaxially positioning the center of a flower bed to be built; the rotating ring is coaxially and rotatably arranged on the positioning column; one end of the adjusting rod piece is fixedly arranged on the outer circumferential surface of the rotating ring in the radial direction; the center position of the inner arc face of the limiting arc plate is fixedly connected with the other end of the adjusting rod piece, the limiting arc plate is coaxial with the to-be-built flower bed, the equipment can assist in building of circular flower beds with different diameters, it can be guaranteed that projections of all layers of bricks and stones coincide in the vertical direction, and compared with existing auxiliary equipment, the construction precision is higher, operation is convenient, and the construction efficiency is improved. The structure is simple, and the use cost is lower.

The invention provides a boron carbide ceramic plate which is formed by splicing ceramic chips. Graphene highly dispersed in the ceramic chips has excellent electroconductive, heat-conducting and mechanical performance and is a two-dimensional material, so that mutual attraction among graphene layers can be remarkably lowered through surface modification to avoid aggregation; graphene has high dispersity and stability in some liquid media, so that a graphene solution stable in dispersion can be prepared; a graphene-ceramic mixed raw material having good implanting effect can be obtained by mixing graphene with ceramic matrix size; graphene plays a role in strengthening and toughening through mechanisms of ceramic interface pinning, crack deflection inducing, bifurcating and crack bridging,graphene breaking and extracting and energy absorbing.

The invention discloses an unmanned grabbing segmental beam lifting appliance and a construction method thereof. The unmanned grabbing segmental beam lifting appliance comprises a lifting beam; the distribution beam is arranged right below the hoisting beam in parallel; the transverse moving mechanisms are arranged at the bottom of the distribution beam at intervals, and any transverse moving mechanism slides in the length direction of the distribution beam; the longitudinal moving mechanisms are arranged on the corresponding transverse moving mechanisms at intervals, and any longitudinal moving mechanism slides in the width direction of the distribution beam; the plurality of padlock hanging rods are respectively connected with the plurality of longitudinal moving mechanisms, and any padlock hanging rod is used for automatically locking the segmental beam hanging hole; contact wheels of the multiple sets of auxiliary alignment devices press the side walls of the segmental beams inwards from the two sides. The hoisting stability is guaranteed through cooperation of the distribution beam and the multi-point hoisting structure, rapid alignment adjustment of the padlock hoisting rod and a segmental beam hoisting hole is achieved through cooperation of the transverse moving mechanism, the longitudinal moving mechanism and the auxiliary alignment device, the padlock hoisting rod and the segmental beam can be automatically locked or unlocked, the manual operation amount is greatly reduced, and the hoisting efficiency is improved. And the hoisting efficiency and the hoisting quality are improved.

The invention relates to the technical field of pavement, and provides a construction method for building pavement on soft foundation. The construction method solves the problem that when strength offoundation is insufficient, the pavement is liable to sink and deform and even crack and be damaged. The construction method comprises the following steps that (1), the sludge depth is detected; (2),a mold pipe is sunk; (3), cement slurry is poured; (4), pile sinking is conducted; (5), the mold pipe is disassembled; (6), the sludge is reinforced; (7), a concrete base and subgrade on two sides arepoured; and (8), a cushion layer and a surface layer are laid. Pile bodies are adopted to provide pressing resistance and bending resistance. Cement piers are fixedly connected to lithosphere. The connecting area between the cement piers and the sludge is large, then the stone blocks are sunk in a matched mode, the gravity of the stone blocks is adopted to generate high friction with the lithosphere, and the gravity of the stone blocks is adopted to generate inertia for in-situ retaining. The pile bodies are constrained stably, displacement of the pile bodies is avoided, the pile bodies are guaranteed to stably support the concrete base, and the pavement structure is stable.

The invention discloses a fine four-face planing-milling machine. A rough planing lower plane cutter, a finish planing lower plane cutter and an upper plane cutter of the fine four-face planing-milling machine are sequentially arranged along a wood feed channel from front to back. Follow-up press wheel air cylinders are mounted on a feeding rack cross beam. The ends of piston rods of the follow-uppress wheel air cylinders are connected with follow-up press wheel racks. The follow-up press wheel racks stride over corresponding upper feeding rollers, and follow-up press wheels are rotationallysupported on the follow-up press wheel racks. A follow-up press wheel sliding seat is supported on a front press foot seat in a sliding manner, and follow-up press wheels are rotationally supported atthe lower end of the follow-up press wheel sliding seat. Multiple wood guide side vertical rollers are rotationally mounted at the front end of a machine body through a side vertical roller mountingseat. A guide support is further mounted on the machine body. Multiple guide chain wheels and a guide drive chain wheel are mounted on a guide sliding plate. A guide chain is tensioned on the guide chain wheels and the guide drive chain wheel. A wood guide channel is formed between the guide chain and guide side vertical rollers. According to the fine four-face planing-milling machine, high-speedplaning of wood of various lengths can be achieved, the machining quality is good, and the planing precision is high.

The invention relates to a vehicle seat belt pretensioner. The vehicle seat belt pretensioner includes: a displacement generator to generate a linear displacement in a seat frame; and a webbing guide that receives the linear displacement generated by the displacement generator and pulls a webbing. In particular, the webbing extends from a retractor fixed to the seat frame to the outside of the seat.

The invention discloses a transfer device of a superlift device. The transfer device of the superlift device comprises a support main body (110), a vehicle connecting part (140) and a superlift device fixing part (130), wherein the support main body (110) is used for supporting the superlift device (200); the vehicle connecting part (140) is used for fixedly connecting the support main body (110) to a transport cart; the superlift device fixing part (130) is used for fixing the superlift device (200) to the support main body (110). By utilizing the transfer device, the superlift device can be stably and compactly constrained together with the transport cart so as to prevent the phenomena of bumping, scratching, sliding-off, toppling and the like of the superlift device in the transfer process.

The invention discloses a large-span bridge vortex vibration wind tunnel test model system and a test method thereof.According to the test model system, a plurality of adjusting parts are arranged on a base, each adjusting part is provided with a cantilever rod, all the cantilever rods are arranged in a cantilever mode in the same direction, and cantilever end portions of all the cantilever rods are provided with beam body models; the displacement measuring part is arranged below the cantilever rod, the horizontal distance between the displacement measuring part and the beam body model exceeds two times of the width value of the beam body model, the displacement measuring part is far away from the surface of the beam body model and the position under the beam body model, and state response data of the position of the cantilever rod can be collected in real time; the method effectively reduces the damping of a model system, improves the precision of technical parameters of the model, is simple and convenient to operate, is reliable, improves the real reliability of wind tunnel test data, and is suitable for large-scale popularization and application. And the requirement of a large-span bridge high-order vortex vibration wind tunnel test can be effectively met.

The invention discloses a secondary structure pipeline burying building block drilling device comprising a sizing base, an upright and a water drill. The outer side of the upright is sleeved with a sliding sleeve. The water drill is fixed to one side of the sliding sleeve. An upper sliding seat on the lower portion of the sliding sleeve is hinged to a lower sliding seat through a push-pull rod anda hinge pin. A movable connecting rod is fixed to the lower end of the lower sliding seat. A front top seat and a rear top seat are fixed to the front and back of the lower side of the movable connecting rod correspondingly. A front base and a rear base are fixed to the front and back of the upper side of the sizing base correspondingly. A front oscillating rod is hinged between the front top seat and the front base. A rear oscillating rod is hinged between the rear top seat and the rear base. A handle or a pedal is connected to one side of the movable connecting rod. Through the guide relation between the sliding sleeve and the upright, the water drill can be controlled to rise, fall and slide. Lifting translation of the water drill is controlled through the linkage structure of the handle or the pedal. Operation is simple and convenient, labor is saved, quickness is achieved, work efficiency can be improved significantly, drilling precision is improved, and construction quality is improved.