52results about How to "Accurate and stable connection" patented technology

The invention discloses an OCV valve for a VVT engine. The OCV valve for the VVT engine comprises a valve body and a plurality of oil leakage ports formed in the surface of the valve body. A filter mesh piece is wound on the position, corresponding to the oil leakage ports, of the surface of the valve body. A ring of fixing pieces are fixedly connected to the outer side of the filter mesh piece. Aplurality of positioning rods are uniformly and fixedly connected to the position, corresponding to the oil leakage ports, of the surface of the valve body and are symmetrical with respect to the oilleakage ports. Positioning holes corresponding to the positioning rods are arranged in the surfaces of the fixing pieces. A plurality of positioning blocks and correspondingly positioning frames areuniformly and fixedly connected to the two ends of the fixing pieces. Cylindrical grooves are separately arranged in the two opposite walls of the positioning bock. A thrust spring is arranged insideeach cylindrical groove. One end of each thrust spring is fixedly connected with the inner wall of the corresponding cylindrical groove, and the other end of each thrust spring is fixedly connected with a limiting rod; and the inner walls of the positioning frames are provided with limiting holes corresponding to the limiting rods. By means of the OCV valve for the VVT engine, the filter mesh piece is convenient to disassemble and assemble, so that the valve is convenient to use.

The invention discloses an orthodontic bracket mounting structure with an auxiliary mounting tool, and the technical problem to be solved is to provide an orthodontic bracket mounting structure with an auxiliary mounting tool which has a simple structure, convenient operation and firm connection. In order to solve the technical problem, the invention adopts the following technical scheme: an orthodontic bracket mounting structure with an auxiliary mounting tool comprises an orthodontic bracket; the orthodontic bracket is detachably connected with an auxiliary mounting tool; two side plates of the auxiliary mounting tool are provided with parallel long edges; and the long edges are engaged with a guide slot of the orthodontic bracket. The invention has the characteristics of being easy for operation, simple in design, and convenient for production; and a precise and firm connection can be formed between two elements with a small using amount of materials, and the invention is applicable to various orthodontic brackets available in the current market.

The invention provides a pit structure mounting method which comprises the following steps: supplying a second upright column, and embedding the second upright column into the bottom of a foundation pit; supplying a bottom plate, and arranging the bottom plate at the bottom of the foundation pit to cover the second upright column; supplying a first upright column, enabling the first upright column to penetrate through the bottom plate, and inserting the first upright column into the second upright column; supplying a supporting plate, and horizontally arranging the supporting plate at the top end of the first upright column; fixedly arranging a pit bearing platform on the top of the supporting plate; and supplying a connecting mechanism, and fixedly connecting the connecting mechanism with the top of the pit bearing platform. When the pit structure mounting method is used for excavating the foundation pit, a fixing mechanism is arranged in a reserved space at the lower part of the pit bearing platform, and the pit bearing platform is supported by the supporting plate, so that the lower part of the pit bearing platform is effectively supported, steadiness of the pit structure mounting method is guaranteed, the pit is prevented from collapsing, the safety hidden dangers are eliminated and the like.

The invention discloses a device and method for mounting a wire rope of an architectural veneer. The device for mounting the wire rope of the architectural veneer comprises the veneer and is characterized in that: a connecting groove with a small opening and a large inside is arranged on the back of the veneer, not close to the edge; a connecting piece can be arranged in the connecting groove with a small opening and a large inside arranged on the back of the veneer, not close to the edge; the shape and the size of the cross section of the connecting piece are matched with those of the cross section of the connecting groove arranged on the back of the veneer, not close to the edge; the connecting piece is transversely inserted into the connecting groove; the direction of the connecting piece is changed from transverse to vertical so as to reach the top position of the connecting piece; the top position of the connecting piece is just positioned at a position with largest width in the connecting groove, and thus the connecting piece is buckled into the connecting groove; and one end of the wire rope is fixedly connected with the connecting piece, and the other end of the wire rope is connected with a building body. Therefore, perforating positions of the veneer and the building body do not need to be too precise and can be subjected to fine adjustment through the deformation ofthe wire rope when the veneer and the building body are connected with each other, thereby the accurate positioning and the firm connection between the veneer and the building body can be achieved. Moreover, the device for mounting the wire rope of the architectural veneer has the characteristics of simple structure, convenient construction and installation, and the like.

A device for the forced locking of two elements oriented orthogonally to one another, especially suitable for steadily connecting and constraining two tubular elements with quadrangular or polygonal section which are partly delimited by a U-shaped band and which have, on at least one face, a plurality of pairs of shaped recesses, whereas the band is correspondingly provided with pairs of complementary projections developed projecting on the inner front of the opposite vertical and parallel branches thereof. The device further includes a bush, extending between the branches of band and fitted, at one end, on a collar which develops projecting along the inner front of branches, whereas the opposite end of bush constitutes the inlet for a screw the end whereof engages in a threaded hole delimited by the collar, bush being extended transversally in the tubular element, provided with aligned holes along two opposite faces, starting from a hole of the band.

The invention provides a pit structure mounting method. The pit structure mounting method comprises the following steps: providing a foundation pit, pouring concrete into the foundation pit, and setting up a first bearing platform; providing multiple supporting rods, and fixedly connecting the bottom ends of multiple supporting rods with the first bearing platform; providing a second bearing platform, and fixedly connecting the second bearing platform with the top ends of multiple supporting rods; providing a pit connecting frame, and fixedly connecting the pit connecting frame with the top of the second bearing platform; and pouring the concrete into the foundation pit, so that a concrete surface covers the pit connecting frame. The pit structure mounting method has the advantages that the second bearing platform and the supporting rods connecting the first bearing platform and the second bearing platform are additionally arranged on the first bearing platform, and each supporting rod has a telescopic structure, so that the levelness of the second bearing platform can be adjusted, and the problems that the foundation pit is sunken and the bearing platforms are deformed as an elevator pit structure is used for too long time can be solved.

The invention relates to a material transfer device. The device includes a transfer platform, a lifting mechanism, a fork, a material transfer mechanism and an electrical control module. A driving wheel for walking and a supporting wheel for supporting are arranged under the transfer platform. The driving wheel consists of Driven by a power source; the lifting mechanism is telescopically arranged in the vertical direction and includes a fixed part and a climbing part. The fixed part is vertically installed on the upper end of the transfer platform, and the climbing part is slidingly connected to the fixed part; The transmission mechanism includes a transfer material barrel arranged on the fork and a feeding pipe arranged under the fork. The transfer material barrel is provided with a material inlet and a material outlet. The feeding pipe is fixed on the transfer platform through the first bracket. The feeding pipe A first opening and a second opening are provided, and the first opening is located directly below the discharge port. The invention can realize automatic transfer of granular materials, reduce labor intensity, improve work efficiency, avoid dust pollution, and improve work environment quality.

The invention discloses a shallowly-buried-in-surface type pipe connection structure. The structure comprises a pipe connection piece and a buried pipe, wherein the buried pipe is a double-layer metal pipe and comprises an inner pipe and an outer pipe; the outer pipe sleeves the outer edge of the inner pipe; the inner pipe is a steel pipe; the outer pipe is a copper-chromium alloy pipe; the inner wall of the inner pipe is coated with an anti-corrosion resin coating; a progressive protrusion part is arranged at the outer edge of the end part of the outer pipe, gradually extends outwards from a position, and is progressively protruded to the end part all the time, and certain distance exists between the position and the end part; the pipe connection piece at least comprises a tight holding piece and an elastic compression ring; the tight holding piece is of an opening ring shape, and the section of the tight holding piece is of a U shape shown as a figure; the elastic compression ring is positioned at the inner edge of the tight holding piece; a first recess and a second recess are formed in the inner edge of the elastic compression ring. Therefore, the shallowly-buried-in-surface type pipe connection structure has the advantages of simple structure, convenience in mutual matching and convenience in operation; pipes can be quickly connected; moreover, the connection performance and the sealing performance of the pipes are better, so that the connection piece is prevented from being corroded and destroyed, and the service life is prolonged.

The invention provides a pit structure mounting method which comprises the following steps: supplying a second upright column, and embedding the second upright column into the bottom of a foundation pit; supplying a bottom plate, and arranging the bottom plate at the bottom of the foundation pit to cover the second upright column; supplying a first upright column, enabling the first upright column to penetrate through the bottom plate, and inserting the first upright column into the second upright column; supplying a supporting plate, and horizontally arranging the supporting plate at the top end of the first upright column; fixedly arranging a pit bearing platform on the top of the supporting plate; and supplying a connecting mechanism, and fixedly connecting the connecting mechanism with the top of the pit bearing platform. When the pit structure mounting method is used for excavating the foundation pit, a fixing mechanism is arranged in a reserved space at the lower part of the pit bearing platform, and the pit bearing platform is supported by the supporting plate, so that the lower part of the pit bearing platform is effectively supported, steadiness of the pit structure mounting method is guaranteed, the pit is prevented from collapsing, the safety hidden dangers are eliminated and the like.