31results about How to "Large support surface" patented technology

The invention relates to a method for building a foundation for a structure comprising a plurality of segments, in particular for a wind turbine tower, a foundation segment for use in such method, and a wind turbine. In order to create a stable foundation, a method comprising the following steps is proposed on the basis of experience gained:_excavating a foundation bed,_building a stable, substantially level and horizontal subbase in a foundation bed, setting down a foundation segment of the structure on the subbase, wherein at least three vertically adjustable support poles are fixedly attached to said foundation segment by means of a supporting bracket mounted at the end of the support poles in such a way that only the support poles are placed onto predetermined points of support on the subbase,_producing a reinforcement on the subbase,_filling the remainder of the foundation bed with foundation mass, in particular concrete, to a level above the bottom rim of the foundation segment.

A board machine comprises a forming section where a lower wire loop (11) forms a fourdrinier-wire section (Tl) at the beginning of which is located a forming board (200) which consists of at least one stationary, non-pulsating forming shoe (210). In the forming shoe (210), there is a cover (211) provided with thorough holes (212), setting against the inner surface of the lower wire loop (11). A first headbox (100), which is a multi-layer headbox, feeds a pulp suspension jet onto the forming shoe (210). The board machine further comprises a press section (Pl) where a surface (Wa) of the web (W) having been against the lower wire loop (11) is pressed against a smooth surface, a dryer section (Dl) where the web (W) is dried with at least one cylinder-dryer group and a coating section (400) where at least the surface (Wa) of the web (W) having been against the lower wire (11) is coated.

Armchair with a seat surface and a leg rest which can be pivoted out, wherein the armchair can be pivoted between a sitting position and a reclining position, for which purpose the seat surface can be displaced to the rear in relation to a fixed frame and is articulated in the front region via erecting levers. The leg rest is coupled to the seat surface in such a manner that it is pivoted when the seat surface is displaced to the rear. The leg rest is connected to the erecting levers by a first sliding mounting and is articulated on the fixed frame by a second sliding mounting. The first sliding mounting is connected pivotably to the second sliding mounting, and the second sliding mounting is configured in such a manner that its orientation changes during the pivoting operation. The leg rest has a thigh part and a calf part that are connected pivotably to each other in such a manner that, when the seat surface is displaced to the rear, the calf part is pivoted from a position arranged approximately parallel to the seat surface and below the seat surface into an approximately horizontal position.

A foundation for a structure comprises a plurality of segments. To build the foundation, a foundation bed is excavated, and a stable, substantially level and horizontal subbase is built in the foundation bed. A foundation segment of the structure is set down on the subbase, such that at least three vertically adjustable support poles fixedly attached to the foundation segment contact reinforced points of support on the subbase. A remainder of the foundation bed is then filled with foundation mass to a level above a bottom rim of the foundation segment.

The invention relates to a telescopable steering spindle (1) having an inner spindle (2) and an outer spindle (3), which are arranged coaxially in relation to one another and have an out-of-round cross section for torque transmission, wherein an intermediate space is provided between the outer spindle (3) and the inner spindle (2), a sliding sleeve (5) being arranged in the said intermediate space, wherein the sliding sleeve (5) is provided with a surface structuring (11) on at least one surface facing the inner spindle (2) or the outer spindle (3).

A foot-operated door opener, with a foot-operated actuator element is located in the lower region of a door for opening the door, and the foot-operated actuator element has a one foot tread element which, when actuated by a foot, at least partially pivots downwards and inwards. The foot tread element is also guided in a forcibly guided manner by way of a forcibly guided element and one forcibly-guided moving element. The foot tread element is connected rotatably to an articulated element and rotatably connected to the forcibly-guided moving element in such a manner that, upon actuation by a foot, the foot tread element both executes a movement downwards and is also moved as a whole at least partially outwards.

Disclosed is a self-assembly formed by a series of longitudinal members and cross members, all of the longitudinal members being identical to one other and all of the cross members being identical to one other, such that only two types of parts are required to construct the structure. Owing to the shape of the parts, they can be assembled to one another to create a solid structure without requiring any other connecting materials or elements. The longitudinal members comprise a series of slots into which narrowed segments of the cross members are inserted. Once the cross members have been inserted into the slots they are trapped therein by moving the longitudinal members and, in order to prevent this movement occurring in the opposite direction, other cross members are inserted into slots provided in the longitudinal members for this purpose.

An expandable canopy tent frame includes two sets of four-bar linkage with overlapping and staggered central axial lines. The central axial hinge point and the side edge hinge point of the two linkage sets are aligned. The central axial hinge points have a lateral bar. The two ends of the lateral bar pass through the slide bushings on the side edge hinge points, and the slide bushings form the support with both sides of the lateral bar. The main structure has at least one fixed end and can be fixed on objects by utilizing that fixed end.

The invention discloses a composite press-fitting press machine, which relates to the field of press-fitting equipment, and comprises a box body, a pressure cylinder A, a lower press plate and a press-fitting seat, a shell is fixed on the top of the box body, a top plate is fixed on the top of the pressure cylinder A, the top plate is fixed on the inner wall of the shell, and the lower press plate is fixed on the end surface of an output shaft of the pressure cylinder A; a guide rod is vertically fixed between the top of the box body and the top plate, the lower pressing plate is movably connected to the surface of the guide rod in a sleeving mode, and the press-fitting seat is fixed to the middle of the top of the box body and located at the bottom of the lower pressing plate. By arranging the adjusting structure and the clamping device, the adjusting structure is used for finely adjusting the clamping device in the clamping state, the situation that the press-fitting position of the workpiece is irregular is mainly handled, press-fitting is convenient, and the effect of finely adjusting the press-fitting workpiece to prevent press-fitting problems is achieved. And by arranging a connecting port A, a pressure cylinder B and a contraction positioning column structure, the effect of pressing bearing workpieces of different sizes is achieved.

The invention discloses an orthopedic nursing walking aid facilitating walking aid of orthopedic patients, and relates to the technical field of walking aids, the orthopedic nursing walking aid comprises two symmetrical supporting cross rods and a supporting column, the supporting cross rods are provided with connecting bent rods, the connecting bent rods are provided with supporting discs, the supporting discs are provided with support chassis, the supporting discs are provided with two stacked rotating discs, each rotating disc is provided with a roller support, each roller support is connected with a one-way roller, the top end of the side column is provided with a retractable groove, the second rotating shaft penetrates through the folding and unfolding groove and is connected with a rotating column, the rotating column is fixedly provided with a fixing hook, the supporting column is provided with a lifting column, the lifting column is provided with symmetrical clamping rings, the clamping rings are connected through a propelling shaft and provided with propelling threads, and the lifting column is provided with a fixing groove. The orthopedic nursing walking aid facilitating walking aid is simple in structure, a user can select walking stick type walking aid or pushing type walking aid according to the specific rehabilitation condition, the operation of changing the walking aid mode is easy, the structure is stable, risks such as slipping are not likely to happen in the walking aid process, practicability is high, and the walking aid is suitable for popularization.

A board machine comprises a forming section where a lower wire loop (11) forms a fourdrinier-wire section (Tl) at the beginning of which is located a forming board (200) which consists of at least one stationary, non-pulsating forming shoe (210). In the forming shoe (210), there is a cover (211) provided with thorough holes (212), setting against the inner surface of the lower wire loop (11). A first headbox (100), which is a multi-layer headbox, feeds a pulp suspension jet onto the forming shoe (210). The board machine further comprises a press section (Pl) where a surface (Wa) of the web (W) having been against the lower wire loop (11) is pressed against a smooth surface, a dryer section (Dl) where the web (W) is dried with at least one cylinder-dryer group and a coating section (400) where at least the surface (Wa) of the web (W) having been against the lower wire (11) is coated.

The invention provides a device for preventing a negative ring duct piece from floating upwards in a steel sleeve. The device comprises a negative ring duct piece in the steel sleeve; a plurality of compression bags are arranged between the steel sleeve and the negative ring duct piece; the plurality of compression bags are uniformly arranged on the top of the inner wall of the steel sleeve; filling pipes are arranged on the two sides of the compression bags; the filling pipes penetrate through fixing hole seats on the steel sleeve and are hermetically connected and fixed through three-way pipes; a pressure one-way valve is fixedly arranged at one end of each three-way pipe, and a pressure gauge is fixedly arranged at the other end of each three-way pipe; the compression bags are filled with filling materials through the pressure one-way valves, so that the multiple compression bags are expanded to fill the top gap between the steel sleeve and the negative ring duct piece, and the situation that the negative ring duct piece floats upwards due to buoyancy generated when grout is used for pouring the gap between the steel sleeve and the negative ring duct piece is avoided; and the compression bags can be filled with air, water or inert slurry according to the buoyancy pressure change, so that the position of the negative ring duct piece can be better controlled, the axis of the negative ring duct piece is ensured to be centered, the posture of a shield tunneling machine is better controlled, normal operation of operation is ensured, and the device is suitable for being popularized and used.

A trocar sleeve includes a distal tubular section, a section which connects to the distal tubular section at a proximal side of the distal tubular section and which is widened proximally, and at least one spiral with a circular outer contour, arranged helically on a periphery of the distal tubular section. The distal tubular section includes a rounded polygonal cross section so that maximal degrees of freedom of the applied instruments result.

The invention discloses a composite pressing machine, which relates to the field of pressing equipment, and comprises a box body, a pressure cylinder A, a lower pressure plate and a press-fitting seat. The top of the box body is fixed with a shell, and the top of the pressure cylinder A is fixed with a top plate. The top plate is fixed on the inner wall of the shell, the lower pressure plate is fixed on the end face of the output shaft of pressure cylinder A, a guide rod is vertically fixed between the top of the box and the top plate, the lower pressure plate is movably socketed on the surface of the guide rod, and the press-fitting seat is fixed on The middle position of the top of the box body, and the press-fitting seat is located at the bottom of the lower pressing plate. By setting the adjustment structure and the clamping device, the adjustment structure is used to fine-tune the clamping device in the clamping state, mainly to deal with the irregular position of the workpiece press-fitting, to facilitate the press-fitting, and to achieve fine-tuning of the press-fitted workpiece to prevent The effect of pressing problems. By setting the connection port A, the pressure cylinder B, and the contraction positioning column structure, the effect of pressing bearing workpieces of different sizes is achieved.