191results about How to "Effective fastening" patented technology

A LC-typed duplex connector includes a connecting head assembly, a boot assembly and a handle. The handle includes a first elastic structure portion, a second elastic structure portion and a hand shank portion. When the second elastic structure portion is detached from the boot assembly, the first elastic structure portion is detached from the connecting head assembly under the action of the hand shank portion, achieving the detachment and alternate side operation of the LC-typed duplex connector. The detachable handle can efficiently fasten the connecting head assembly with the boot assembly together. The first and second elastic structure portions are easier to detach from the connecting head assembly and the boot assembly respectively under the action of the hand shank portion. Moreover, the hand shank portion is matched with the tail end of the boot assembly, thereby improving efficiently the space utilization of the panel.

A fastening mechanism for fastening a module and a second module in the housing of an electronic device is disclosed. The fastening mechanism includes a lid body and a positioning member disposed in the housing. The first module is fixed in the housing by the lid body and the lid body is fastened by the positioning member, which is coupled to and overlaps the second module on the lid body, thereby using a shared common space for concurrently holding the lid body, the first module and the second module in place to save the layout space of the electronic device.

A window frame (7, 8, 8′) for a window (4, 5, 6, 5′, 6′) of a passenger car, has at least one seal having one or a plurality of sealing profiles (17.1, 17.2, 17.3, 17.4, 18.1, 18.4) that abut one another at seams in the longitudinal direction of the seal, and further have a fastening profile cooperating with the seal and comprising one or more fastening profile pieces (13.1, 13.2, 13.3, 13.4) that abut one another on at least one seam in the longitudinal direction of the fastening profile. The fastening profile pieces (13.1, 13.2, 13.3, 13.4) have a metal ornamental moulding (9, 10, 10.1, 10.2, 10.3) attached to them and a moulding flange (14.1, 14.2, 14.3, 14.4) fastened with at least one fastening element (15.1, 15.2, 15.3, 15.4) to secure the fastening profile to the passenger car. The ornamental moulding (9, 10) is crimped on the moulding flange (14.1, 14.2, 14.4) of the fastening profile piece or pieces (13.1, 13.2, 13.3, 13.4) such that it covers the seam in one piece. The invention additionally relates to a method of producing such a window frame.

A fastener comprised a plurality of elongate, threaded studs which are connected to a common anchor portion for securing a frame member to a foundation. Attached to the anchor portion is a receiving element adapted to receive a positioner. The studs, anchor and receiving element comprise of a one-piece integral assembly constructed of steel or high tensile strength steel. In addition, the fastener is adapted to receive a template and positioner for stability during the pouring and curing of the foundation.

The invention relates to a method for mounting at least one electronic or mechanical component on a printed board comprising the steps of: surface-mounting at least one guide element on the printed board or placing the at least one guide element in a dead end hole in the printed board, fastening the at least one guide element to the printed board by soldering before guiding the at least one electronic or mechanical component towards the printed board, and placing the at least one electronic or mechanical component on the printed board with the help of the at least one guide element. The invention also relates to a guide element and a electronic or mechanical component to be used in the method.

A terminal assembly (100) for multiple connection in an electrical apparatus comprises a protection plate (10) arranged with a resilient portion (12) and a base part provided with with a gripping profile on its surface. A clamp (103) is formed with a passage (104) for receiving and securing multiple electrical conductors. A fixed connector (6) is placed inside the clamp (103) in such a way that the passage of the clamp (103) is divided into an upper and lower housing portions to provide separate lodging for clamping the electrical conductors. A fastening means (105) is secured within the clamp (103) with its cylindrical or non-threaded tip contacting the base part of the protecting plate (10) and the fastening means (105) passing through a hole of a cooperating plate of said protecting plate (10), which is introduced into the passage of the clamp (103) in such a way that the resilient portion (12) of the protection plate (10) faces away from the clamp (103). The fastening means (105) is fastened on the clamp to press down the protection plate (10) such that the passage of the clamp (103) is adjusted in accordance with dimensional variations of the electrical conductors. Such assembly provides highest reliability and flexibility to achieve uniform and larger space for insertion of multiple electrical conductors.

The invention relates to a node fastening device, in particular to a bottom chord node fastening device of a multi-suspend structure for a building steel structure and a fastening tension method thereof. The upper end of a support rod connecting piece is a support rod transition step; a groove with downward opening is arranged in the middle of the support rod connecting piece; a cableway fixing seat is matched with and firmly fixed to the support rod connecting piece; a cable passing vertical rod is arranged in the middle of the cableway fixing seat; the upper end of the cable passing vertical rod is a downward-concave groove; the cable passing vertical rod is matched with the groove; the groove and the downward-concave groove form a cable passing pore path; and the dragging of primary and secondary cables is realized in the way of fastening and then fastening prestressing cables. The bottom chord node fastening device of multi-suspend structure and the fastening tension method thereof are reasonable in structure, high in construction precision and construction efficiency and low in construction cost, and enhance the safety of steel structure.

The invention discloses a double-row chain tightener which comprises a primary shaft (1), a secondary shaft (3), a left hook body (2) and a right hook body (4), wherein the left hook body (2) and the right hook body (4) are arranged on the primary shaft (1) and the secondary shaft (3) at the same time; and a washer (5) and a cotter pin (6) are arranged on the primary shaft (1). According to the double-row chain tightener provided by the invention, the parts needing tightening can be effectively tightened, the processing is simple and the materials are saved.

The present invention pertains to a versatile fastener essentially comprising at least two flat areas formed on a cutting part, and an accommodating area disposed between any two of the flat areas. Wherein, at least two cutting faces are convergent to form the accommodating area, a first and a second cutting edges are respectively formed at a connection between each cutting face and flat area. In operation, the flat areas facilitate the first and the second cutting edges to promote a stable balance with the object, thereby allowing the debris to be swiftly guided out of the accommodating areas. Consequently, it is difficult to crack the object while imparting forces thereon so as to lower the screwing resistance and the fastening torque as well as preferably increase the combining efficiency.

The invention belongs to the technical field of pipeline connection, and provides a pipeline anti-seismic connection structure, which is installed at the junction of two transmission pipelines, including a connection pipeline, an anti-seismic clamp, a sealing ring and a connecting rod; the connection end of the transmission pipeline is inserted into the connection pipeline The anti-seismic clamps include two corresponding half clamps, the half clamps are semi-circular structures with different inner diameters on both sides, and the two half clamps are fitted on the conveying pipeline and connected by sealing rings. In the connection part of the pipeline, both ends of the half hoop body are provided with ear seats, and bolt holes for locking bolts are opened on the ear seats, and the two half hoop bodies are connected and fastened by the locking bolts and the first nut; the connecting rod There are at least two connecting rods, and the two ends of the connecting rod are detachably fixedly connected to the conveying pipe and the connecting pipe respectively through the connecting mechanism. The invention can make the pipeline connection maintain good connection sealing performance under the influence of earthquake and other external stresses, and improve the anti-seismic sealing performance of the pipeline connection.

A valve with spherical wedge flap has an opening-closing set of spherical wedge flap and a sealing set of spherical wedge. The diameter of spherical wedge is slightly greater than that of spherical seat and the center of said spherical seat is slightly higher than reference plane, so controlling the valve easily. Its fastening hoop connection method features that the joint, sealing hoop, grasp hoop and nut are used. Its advantages are efficiency sealing and reliable joint.

The invention discloses a pier-encircling clamp device, which comprises a mounting frame, a traversing frame, a bracket, anchor block racks, anchor blocks, connecting rods, a traversing hydraulic cylinder, a rotary hydraulic cylinder and a support hydraulic cylinder, wherein the mounting frame is connected with a mounting base on a support leg hydraulic cylinder of a to-be-clamped device, the traversing frame is installed below the mounting frame, the bracket is suspended below the traversing frame, the anchor block racks which are provided with the anchor blocks at the bottoms are respectively installed on the two sides of the bracket in groups of twos, the connecting rods are respectively connected with two anchor blocks at the same side, one end of the traversing hydraulic cylinder is fixed on the traversing frame and the other end thereof is fixed on the bracket for pushing the bracket to traverse horizontally, one end of the rotary hydraulic cylinder is connected with the bracket and the other end thereof is connected with the connecting rods for enabling the anchor block racks to rotate around the bracket, the support hydraulic cylinder is arranged below the bracket for jacking up the bracket and further clamping wedges. The pier-encircling clamp device can be used for effectively fastening the support leg of the to-be-clamped device with a pier without arranging embedded parts on the pier.

It is a sort of sewing thread and yarn with self-lock function and its manufacturing method. A special fusible compound was coated on the sewing yarn in certain conditions and this compound can be activated to gain self-lock function. Blare retaining property and smooth surface character could be optimized by this method. Enhanced cohesion can also be obtained by the yarn.

A torque wrench for an implant procedure is provided, wherein only a single torque wrench according to the present invention is necessary to first tighten a screw and finally firmly fasten the screw with a desired force or to first loosen the screw and finally completely remove the screw, even without the use of a separate hand driver. A torque wrench for an implant procedure includes: a first body part having a predetermined length, and including a head portion having an end to which a torque wrench driver bit is coupled; at least one second body part having a predetermined length, provided at one side of the first body part, and including a coupling portion formed in a longitudinal direction thereof; and a second shaft rotatably coupled to the coupling portion of the second body part, including a second gear provided at one end thereof and a knob provided at the other end thereof, and configured such that, in response to rotation of the knob, the second shaft transmits torque to the torque wrench driver bit through the first gear engaged with the second gear.

The invention discloses a buried anti-floating box and pump integrated water tank and a construction method thereof. The water tank comprises a water inlet pipe, a water storage tank and a water outlet pipe, wherein the water inlet pipe and the water outlet pipe are installed on the two sides of the water storage tank, and the water inlet pipe and the water outlet pipe are communicated with the water storage tank. The water tank further comprises a first supporting column and a second supporting column, and the first supporting column and the second supporting column are used for fixedly supporting the water storage tank; the water storage tank comprises a plurality of moulded boards, the moulded boards are assembled to form a plurality of splice plates, and the splice plates comprise upper bottom plates, lower bottom plates, a plurality of first lateral plates and a plurality of second lateral plates. The structural design is reasonable, the operation is simple, the compressive strength, the anti-floating capacity and the anti-seismic effect of the water storage tank are improved, and moreover, the service life of the whole device is prolonged. The concrete moulded boards are assembled to form the plates with the required size, so that the application range is wide, the water tank is easy and convenient to use, and the water tank is high in practicability.

A plug connector includes a main body, a protecting assembly and an outer shell. The main body includes a connecting element for an electrical connection, a circuit board electrically connected with the connecting element, a soldering element fastened to a rear end of the circuit board, and an inner shell surrounding the circuit board. The protecting assembly is fastened to the main body. The protecting assembly includes a combination element surrounding the inner shell, and a protecting element fastened with the combination element. The outer shell surrounds the inner shell. The protecting element is fastened to a junction among the connecting element, the inner shell and the outer shell. The combination element has a first buckling assembly and a second buckling assembly. The first buckling assembly is buckled with the inner shell. The second buckling assembly is buckled with the outer shell.

The invention relates to the field of the material sieving technology, in particular to a method for rapidly replacing a strained sieve net and a vibration sieve. The vibration sieve comprises a sieve frame, a net frame, the sieve net and a net straining strake. The net frame is arranged in the sieve frame. The vibration sieve is characterized in that the net straining strake is arranged on the inner wall of the sieve frame, a through hole is formed in the position, corresponding to the net straining strake, of the sieve frame, and an end portion of the net straining strake is penetrated out of the through hole; when the sieve net is replaced, the sieve net is horizontally placed on the net frame, the sieve frame is placed on another sieve net and falls off, and the sieve net is attached to the outer wall of the net frame after the sieve frame bends the sieve net downwards; an end portion of the net straining strake is linked with a straining device, and the net straining strake can be tightened by operating the straining device. As the sieve frame and the net straining strake are of an integral structure, when the sieve net is replaced, the sieve net just needs to be flatly placed at the upper end of the net frame, and then the sieve frame is placed on the sieve net and falls off at a time. The sieve frame vertically falls off to bend the sieve net so that the sieve net can be attached to the outer wall of the net frame. The sieve net does not need to be manually bent and the requirement for the skill proficiency of an operator does not exist.