14results about How to "Solve the gap problem" patented technology

The invention relates to the technical field of gas meters, in particular to an ultrasonic gas meter which comprises a shell, an ultrasonic pipe, an ultrasonic receiver, a reading module, a gas outlet pipe and a gas inlet pipe. The shell is installed on a wall, the ultrasonic pipe is transversely installed in the shell, the ultrasonic receivers are symmetrically installed on the two sides of the ultrasonic pipe, the reading module is installed at the front end of the shell, and the air outlet pipe and the air inlet pipe are symmetrically installed on the two sides of the top of the shell. The transmission mechanism and the adjusting mechanism are both installed on the inner wall of the upper cavity of the shell, and the transmission mechanism is connected with the adjusting mechanism through a clamping ring. The transmission mechanism drives the half gear to rotate through the motor, the half gear can drive the eccentric gear to rotate, due to the fact that the number of teeth of the half gear is half of that of the eccentric gear, the half gear rotates one circle to drive the eccentric gear to rotate a half circle, and the adjusting mechanism is opened to adjust the gas flow speed after the eccentric gear rotates a half circle.

This utility model relates to the field of machining center technology, specifically a quick-change tool chuck for CNC machining centers. It includes a spindle motor and a cutting tool. The spindle motor is mounted on the top of the spindle housing, and a Z-axis motor is fixedly connected to the back of the spindle housing. A motor is mounted on the top of the Z-axis motor, and a guide rail is mounted on the back of the Z-axis motor. The guide rail is mounted on the front of the column. This utility model significantly reduces tool runout and improves radial runout accuracy. The tapered hole design around the spindle port simplifies the mechanical structure and achieves synchronous positioning of the end face and the tapered surface, avoiding the gap problem of traditional tapers and reducing manufacturing costs. The built-in spring and pull stud assembly of the chuck can be disassembled separately, reducing maintenance costs. It overcomes the limitations of traditional chucks in terms of quick tool change, accuracy maintenance, and cost control, providing a better solution for efficient and precise machining in CNC machining centers.

The application provides a connecting lock mechanism of an LED display device and the LED display device, wherein the connecting lock mechanism of the LED display device comprises a connecting lock, the connecting lock comprises a base, a lock body, a core body part has an insertion position of making a lock pin protrude from the base, a locking position of rotating a preset angle relative to the insertion position and a tension position of retracting a preset distance relative to the insertion position, a first driving piece, a transmission piece and a second driving piece movably arranged on the core body part, the second driving piece drives the first driving piece to rotate, on one hand, drives the transmission piece to rotate to drive the core body part to rotate from the insertion position to the locking position, on the other hand, drives the core body part to move from the insertion position to the tension position through the push-up structure and the push-up cooperation with the base, and when the core body part rotates to the locking position, the transmission piece is switched from being driven by the first driving piece to being static. The technical scheme of the application effectively solves the problem of obvious gaps between two adjacent LED boxes in the related art.

The utility model belongs to the technical field of large-scale wind driven generator stator core lamination, and particularly relates to a large-scale wind driven generator stator core lamination device which comprises a stator supporting seat, a lower pressing plate is arranged at the top of the stator supporting seat, an upper pressing plate is arranged at the top of the lower pressing plate, and the upper pressing plate is arranged at the bottom of the stator supporting seat. A stator core is arranged between the lower pressing plate and the upper pressing plate. According to the utility model, the eight mechanical jacks are uniformly arranged, then the lower pressing plate of the large-scale pre-pressing tool is hung on the jacks, each jack is adjusted, then the stator iron cores are stacked on the lower pressing plate, when the stator iron cores are stacked to a fixed height, the groove type of the stator iron cores is adjusted, then the upper pressing plate of the large-scale pre-pressing tool is hung, and after the hanging is completed, the stator iron cores are placed on the lower pressing plate. The two ends of the inner ring screw rod and the two ends of the outer ring screw rod penetrate through the lower pressing plate and the upper pressing plate to be connected with the nuts, and therefore the problem that tiny inter-piece gaps are possibly generated after scattered pieces are installed can be solved through the structure, and the iron core length requirement and the iron core overlying coefficient are guaranteed.

The utility model discloses a battery equalization module with expansion ports, and relates to the field of battery equalization modules, the battery equalization module with expansion ports comprises two symmetrically arranged intermediate shells, a left end cover and a right end cover, and the two intermediate shells, the left end cover and the right end cover are detachably connected with each other; according to the battery equalization module with the expansion ports, the first grooves and the second grooves are formed in the end parts of the inner and outer walls of the intermediate shell, and the effect of adjusting the length of the shell by breaking off with hands is achieved by weakening the strength of the grooves. The notch is kept straight through the design of the groove position, the complete sealing performance of the shell can be maintained after the groove position is matched with the end cover, the problem of interface gaps caused by traditional cutting is effectively avoided, and the convenience of length adjustment and the structural reliability of the shell are remarkably improved.

The utility model relates to a tool holder technical field discloses a kind of stable tool holder, including two clamping claws, center positioning block and spring, two described clamping claws are left-right symmetrical and each other can open or close and install on tool disc, the center positioning block is fixed on the edge surface of tool disc and is located between two clamping claws, the spring is connected between the rear end of two clamping claws and is located in the rear side of center positioning block, the inside of two described clamping claws is provided with the clamping block for clamping handle, detachably mounted on the center positioning block is handle positioning block.The utility model can realize quick replacement different specifications handle positioning block (such as NBT30 / BT30 module) by the detachable design of handle positioning block, realize double handle standard compatibility, avoid the gap problem of traditional conversion sleeve, directly utilize the precision machining surface of positioning block and handle cooperation, improve clamping rigidity;And modular design reduces maintenance cost, handle positioning block can be replaced individually after wearing, without overall scrapping tool holder.

This invention provides a centrifugal pump sealing structure and a centrifugal pump, including a sealing ring mounted on a pump shaft and a support ring mounted inside the pump body. The sealing ring is concentrically arranged inside the support ring. The invention is characterized by a sealing assembly disposed between the support ring and the sealing ring. The sealing assembly includes: a plugging member with horizontally symmetrical sides extending into the interior of both the support ring and the sealing ring, and vertically symmetrical sides deformed and extending into the gap between the support ring and the sealing ring; and an adjusting member disposed between the sealing ring and the plugging member, which compresses the plugging member. This invention, through its designed sealing assembly, achieves a double seal, avoiding gap problems caused by wear between the sealing ring and the pump shaft.

The utility model discloses a barrier gate machine core motor which comprises a machine case, a machine core motor and a supporting plate are arranged in the machine case, a plurality of first screws are movably arranged on the machine core motor, the machine core motor is fixed in the machine case through the first screws, a support is arranged in the machine case, two second screws are movably arranged on the supporting plate, and the second screws are fixed in the machine case through the second screws. The supporting plate is fixed on the support through a second screw, a bearing is arranged on the supporting plate, a transmission shaft is arranged on the machine core motor, one end of the transmission shaft extends into the bearing, and the transmission shaft of the machine core motor can be limited and supported through the supporting plate and the bearing, so that the gap problem of the transmission shaft of the machine core motor of the barrier gate is solved. Abrasion of the transmission shaft is reduced, stability is improved, the service life of the whole barrier gate is prolonged, meanwhile, the phenomena of movement track deviation and noise generation of the lamp box rod are avoided, and potential safety hazards are reduced.

The application relates to a haunch body generation method based on a catch basin building model, wherein the method comprises the following steps: acquiring geometric information of the catch basin and extracting a basic component associated with the catch basin; based on the geometric information, filtering side edges meeting a haunch condition from the catch basin as candidate haunch edges, and performing adaptive verification on boundaries of the candidate haunch edges and boundaries of the basic component to obtain a target haunch edge set; based on the target haunch edge set, determining a generation direction and a haunch section parameter of each haunch edge, and generating an initial haunch body based on the generation direction and the haunch section parameter; adjusting the initial haunch body to obtain a target haunch body, and fusing the target haunch body with the catch basin to generate a catch basin building model with the haunch body. The method solves the problem of how to improve generation efficiency and accuracy in the related art.

The utility model provides a kind of microwave radar mounting structure of bridge inspection unmanned aerial vehicle, it is related to unmanned aerial vehicle microwave radar installation technical field, the present application is in view of the problem that the surface non-planar of unmanned aerial vehicle causes poor microwave radar installation adhesion, uneven stress of bolt, by installing first frame and second frame again cooperation horizontal limiting assembly and elastic limiting assembly, microwave radar and the adhesion (arm surface is plane) of unmanned aerial vehicle frame body, stable connection are achieved, the clearance problem generated due to uneven installation surface is avoided, simultaneously make each connecting part stress more uniform, effectively prevent bolt wire slip, fracture and so on occur.

The utility model discloses an anti-unbalance loading three-section lifting column structure with double-screw synchronous thrust, and relates to the technical field of mechanical transmission and control. According to the utility model, the power of the motor is transmitted to the reduction gearbox, and after speed reduction and torque increase, the power is transmitted to the gearbox through the transmission gear set to drive the left-handed ball screw and the right-handed ball screw which are horizontally parallel to each other to rotate synchronously. The ejector rod is in threaded connection with the outer wall of the right-handed rotation ball screw, the screw rods rotate to enable the ejector rod to do linear motion, the two screw rods synchronously and reversely rotate to achieve simultaneous lifting and load pushing or pulling on the two sides, compared with a screw rod and chain structure, the double-screw-rod structure is free of chains, the gap problem caused by chain abrasion is avoided, stable operation of the lifting column can be guaranteed, and the service life of the lifting column is prolonged. And the cargo falling risk is reduced. Meanwhile, the design of a hollow lead screw is abandoned, the two solid lead screws are adopted, the strength is higher, the size and weight are smaller, the transmission efficiency is higher, continuous work can be achieved in an automatic production line, and the production efficiency is improved.

A foundation for a cellar bottom includes, from bottom to top, a compacted soil layer, a clay layer, a waterproof and breathable membrane, a neutral cellar mud layer, and a cellar bottom cultivation mud layer. The waterproof and breathable membrane includes a fixed frame, a breathable membrane body, and positioning patches. The fixed frame is U-shaped, including a rectangular frame and rectangular membrane body limiting holes located within the rectangular frame. The shape of the breathable membrane body is adapted to the shape of the rectangular membrane body limiting holes. Several positioning patches are laid horizontally and vertically at intervals on the top surface of the breathable membrane body, and both ends of each positioning patch are adhered to the top surfaces of both sides of the fixed frame, so that the breathable membrane body and the fixed frame are fixed together. In this application, the waterproof and breathable membrane has countless ultra-fine tortuous channels formed between the fibers, which block liquid water and diffuse gaseous water, while achieving waterproofing and breathability. It forms a continuous waterproof layer at the bottom of the cellar, which can effectively prevent the penetration of liquid water.

The utility model discloses a plug-in type special-shaped magnesite brick, and relates to the technical field of magnesite bricks. The plug-in type special-shaped magnesite brick comprises a first magnesite brick and a second magnesite brick, the first magnesite brick comprises a first brick body, and a front bayonet and a rear bayonet are formed in the two sides of the first brick body respectively; according to the plug-in type special-shaped magnesite brick, the first magnesite brick and the second magnesite brick are arranged, and the two types of magnesite bricks in different forms can be connected in different modes, so that quick and accurate plug-in connection between the magnesite bricks can be realized, the masonry process of the magnesite bricks is simplified, the construction efficiency is improved, and the connection strength and stability between the magnesite bricks are improved; according to the heat storage boiler, deviation and collapse of parts are avoided, the service life of the heat storage boiler is effectively prolonged, the maintenance cost and the operation risk are reduced, the problem of gaps possibly occurring in a traditional masonry mode is avoided, heat loss is reduced, and the heat efficiency of the heat storage boiler is improved.