31results about How to "Close gap" patented technology

Provided is a box-type portable bicycle capable of being pushed and provided with a four-connecting-rod foldable body. The box-type portable bicycle capable of being pushed and provided with the four-connecting-rod foldable body comprises the body, a front fork, a V-shaped foldable handlebar, a saddle, a front wheel, a rear wheel, a bicycle box and a driving mechanism. The body is the four-connecting-rod foldable body which is composed of a front tube fitting, an upper cant beam, a lower cant beam and a rear vertical beam. A bottom blade of a lower saddle tube is connected with the rear end of the upper cant beam in a rotating mode, is connected with the upper end of the rear vertical beam in a rotating mode, and can be connected with the upper cant beam in a locked mode, the front fork is connected with a circular tube hole of the front tube fitting in a rotating mode, the V-shaped foldable handlebar is installed in a front fork tube of the front fork, a left handlebar and a right handlebar of the V-shaped foldable handlebar can be connected with each other in a locked mode, a handle which can be used for lifting is arranged at the front end of the bicycle box, and a swivel hook and a fastener are connected with the rear portion of the bicycle box. After the body is folded, the swivel hook of the bicycle box hooks the fastener of the bicycle box, and the folded body can be limited in a box body. The driving mechanism comprises a center shaft, a secondary shaft, cranks, pedals, a preceding stage chain wheel, a preceding stage small chain wheel, a subsequent stage chain wheel, a flywheel, a preceding stage chain and a subsequent stage chain.

A railcar body comprises at least one panel assembly having a first panel and a second panel, both extending longitudinally along the railcar body and adjacently to each other. The inner wall of the first and second panels, which are longer than their outer wall, respectively have at least a first and a second mating interface which are different from each other and compatible so as to be located at a predetermined distance from each other, thereby creating a gap of a predetermined width between two juxtaposed edges of the panels. This panel assembly is designed to be compatible with a laser welding process.

The invention relates to a production and processing device of a waterproof zipper. The invention solves the problem that a gap is generated between a right waterproof glue layer and a left waterproofglue layer of the zipper when processing waterproof zippers in the prior art. The invention adds an opposite slant hole and a blowing pipe to a pressing board structure of a sewing machine in the prior art; according to aerodynamic principle, the cloth ribbons pasted with waterproof glue layer are pushed to middle by the constant air blowed out from the additionally equipped blowing pipe, thus ensuring that the gap between the waterproof glue layer cloth ribbons at the right half side and the left half side of the zipper is close after sewing; at the same time, a spotted fence on the back ofan upper pressing board can avoid overlapping sewing caused by excessive squeeze when the cloth ribbons are pushed to the middle by wind blowing. The invention can guarantee the smooth sewing of the waterproof zipper cloth ribbons pasted with waterproof glue layers and compact sewing gap after sewing, thereby resulting in excellent waterproof performance of the product.

The invention relates to a stator for an eccentric screw pump, the stator having an inner cavity for accommodating a rotor, the inner cavity having an inner configuration of helical turns. The stator comprises a stator core arranged in a stator housing, the stator core being composed of at least two radially separable core parts. According to the invention, at least two radially separable core parts each consist of a metallic material or a technical ceramic material. The stator housing is a stator tube and consists of a metallic material. The stator casing is shrunk onto the stator core. The invention also relates to a method of manufacturing the eccentric screw pump and the stator.

The present invention relates to a kind of device and method for preparing kelp sauce, the device comprises: a first conveyor belt, a cutting unit, a softening unit, a cleaning unit, a pulping unit, a drying unit and a mixing unit; the cutting unit is used for Cut the dried kelp on the first conveyor belt into pieces; the softening unit is used to soften the dried kelp; the cleaning unit is used to clean the softened kelp; the pulping unit is used to crush the kelp to form Seaweed pulp; the drying unit is used to dry the seaweed pulp to form seaweed blocks; the mixing unit is used to crush the seaweed blocks to form seaweed powder, and mix the seaweed powder with auxiliary materials. The invention realizes the deep processing of kelp, and the prepared kelp sauce is clean, hygienic and unique in flavor, realizes streamlined operation in the production process, has strong continuity, does not need manual participation, and has high production efficiency.

The invention discloses a novel anti-oxidation multi-component alloy solder and a preparation method thereof. The solder is composed of the following metal elements in weight percent: Ag 40-55%, Cu 43-55%, Ni 1-2%, Si 0.5% ~ 1.5%, Ce 0.2 ~ 0.5%, Y 0.1 ~ 0.5%, Nd 0.2 ~ 0.5%; the metal elements are smelted, cast, solid solution, aging, turning, cold rolling, tempering, annealing, finishing process, Prepare the solder. The sealing material prepared by the invention has the advantages of high cleanliness, good corrosion resistance, good oxidation resistance, low cost, strong tensile performance and the like.

Provided is a box-type portable electric bicycle capable of being pushed and provided with a four-connecting-rod foldable body. The box-type portable electric bicycle capable of being pushed and provided with the four-connecting-rod foldable body comprises the body, a front fork, a V-shaped foldable handlebar, a saddle, a front wheel, a rear wheel, a bicycle box, a manpower driving mechanism and an electric driving system. The body is the four-connecting-rod foldable body which is composed of a front tube fitting, an upper cant beam, a lower cant beam and a rear vertical beam. A bottom blade of a lower saddle tube is connected with the rear end of the upper cant beam in a rotating mode, is connected with the upper end of the rear vertical beam in a rotating mode, and can be connected with the upper cant beam in a locked mode, the front fork is connected with the front tube fitting in a rotating mode, the V-shaped foldable handlebar is installed in a front fork tube of the front fork, a left handlebar and a right handlebar of the V-shaped foldable handlebar can be connected with each other in a locked mode, and a swivel hook and a fastener are connected with the rear portion of the bicycle box. After the body is folded, the swivel hook of the bicycle box hooks the fastener of the bicycle box, and the folded body can be limited in a box body. The manpower driving mechanism is installed on a five-way tube and an secondary shaft base of the body, and the electric driving system comprises a hub motor, a battery, a controller and a control switch, wherein the hub motor is configured on the front wheel, and the battery and the controller are both arranged in a rectangular tube hole of the front tube fitting.