12results about How to "Less prone to damage" patented technology

The utility model relates to the technical field of silicon powder heating, specifically relates to a heating device for powder purification of direct pulling method, including heating block, the lower part of heating block is provided with the footboard, the footboard is connected with heating block through the connecting device, the connecting device includes the connecting hole of setting at the top of footboard, the bottom of connecting hole is provided with the plug pipe, a plurality of expansion joints are provided on the pipe body of plug pipe, improve the fixed effect of connection, guarantee the safe use, prolong the life, reduce the production cost.

This utility model discloses a robustly installed PCBA structure and server. The robustly installed PCBA structure includes a PCBA board and mounting screws. The PCBA board has mounting holes. Each mounting screw, from one end to the other, includes a threaded section, a tapered guide section, and a screw head. The tapered guide section passes through the mounting hole to secure the PCBA board to the server. The threaded section is used for threaded connection to the server. The tapered guide section is used to push and correct the position of the PCBA board. The screw head presses against the PCBA board. An elastic sealing ring is fitted around the outer periphery of the mounting screw, located between the outer periphery of the mounting screw and the inner periphery of the mounting hole. This utility model facilitates installation and ensures stability after installation.

This application relates to a rice sieve device for processing high-nutrition grains, belonging to the field of grain screening technology. The rice sieve device includes a frame, on which a feeding hopper and an elevator are mounted; multiple sieve plates are mounted on the frame, with different aperture specifications and arranged along the height direction, and each sieve plate has multiple screening sections along its length direction; multiple collection hoppers are fixed to the frame, and each collection hopper has a conveyor belt below it; multiple vibrating devices are mounted below the sieve plates along the length direction of the sieve plates; and a self-switching mechanism is located between the frame and the vibrating devices, used to separate or connect the sieve plates and the vibrating devices, as well as to drive the sieve plates to move laterally and lock their position. This application reduces the space requirement of purchasing multiple rice sieve devices, reduces the floor space occupied, improves space utilization, and simultaneously achieves the effect of automatic and rapid switching of sieve plates.

The utility model provides a kind of folding heightening device applied to box, comprising: harvesting box;Front baffle, hinged to the front side wall top of harvesting box;Rear baffle, hinged to the rear side wall top of harvesting box;Reset piece is equipped on the front baffle and rear baffle, and reset piece drives itself to recover vertical state;Connecting rod assembly, its both ends are movably connected on the same end upper portion of front baffle and rear baffle, and connecting rod assembly lower side is equipped with suspension curtain;Shielding component, it is equipped in the top of the side wall opposite to suspension curtain of harvesting box.Using the utility model, front baffle can be under the pressure of external component, rear baffle is pulled forward by connecting rod assembly and is turned over, and then folding is completed;It can return to vertical state under the action of reset piece, and it is convenient to increase the volume of box;Front baffle, rear baffle and reset piece and other components are not easy to scratch and damage, and the service life of device is increased.

This utility model discloses a combined structure of sheet piles and I-beams, relating to the field of civil engineering technology. It includes an I-beam body, a sheet pile body, a fixing block, and a protective cover. A sliding rod is fixedly connected to the back of the protective cover, and a locking hole is provided in the middle of the protective cover. A positioning plate is fixedly connected to the middle of the cavity of the locking hole, and telescopic springs are fixedly connected to both sides of the positioning plate. This utility model, by setting up a protective cover, can effectively protect the connection between the I-beam body and the sheet pile body. The sliding rod on the back of the protective cover cooperates with the sliding groove, slider, and sliding rod on the inner side of the I-beam body, allowing for flexible adjustment of the protective cover's position to better adapt to different working scenarios and protection requirements. Simultaneously, the locking structure composed of the positioning plate, telescopic springs, movable plate, and locking plate within the locking hole ensures that the protective cover is stably fixed in the appropriate position, preventing it from sliding or falling off.

This invention discloses a lifting device for seed processing and transportation. It utilizes multiple dust removal modules instead of a single dust removal device in existing technologies, resulting in a smaller size and less noise. Furthermore, in the event of a single dust removal module failure, the other modules can assist in controlling dust concentration without requiring the main body of the elevator to be shut down for maintenance, thus increasing the safety of the elevator and facilitating the maintenance of the dust removal module's detection accuracy and efficiency. The invention also incorporates buffer steps and buffer supports, using the impact between the buffer steps and buffer supports to control the speed of the sliding inner frame, preventing it from sliding directly out of the fixed outer frame and thus reducing the risk of damage to the inner frame and dust collection unit. Additionally, pressure relief holes and sealing bolts provide new pressure relief locations for the dust removal modules, further enhancing the safety of the elevator.

This invention provides a vacuum composite LNG cryogenic pipeline, comprising four functional layers from the inside out: an inner composite pipeline layer, a vacuum layer, an outer composite pipeline layer, and an outer sheath layer. The inner composite pipeline layer consists of an inner spiral wire layer, a sealing layer, a braided layer, another sealing layer, and an outer spiral wire layer, arranged sequentially from the inside out. The vacuum layer is formed by an annular area between the inner and outer composite pipeline layers, supported by an insulating gasket ring, providing vacuum insulation. The outer composite pipeline layer consists of inner and outer spiral wire layers as its innermost and outermost layers, a sealing layer as its second layer, and a braided layer as its third layer. The outer sheath layer comprises an outer sheath. This invention offers superior bending flexibility and low bending stiffness, making it less prone to fatigue damage under external tensile and bending cyclic loads. It also provides excellent insulation, more rational stress transmission in cryogenic pipelines, and a wider range of applications.

The utility model relates to the technical field of PCB production, disclose a kind of PCB board production dust removal device, including device cavity;Suction mechanism is connected in the device cavity, to the gas of outside miscellaneous dust is inhaled into the device cavity;And filter mechanism, it is set in the device cavity, located above the suction mechanism, to filter the miscellaneous dust inhaled gas;Wherein, the filter mechanism includes the spiral filter assembly being set in the top or middle part of the device cavity, and the horizontal filter assembly being set below the spiral filter assembly.The utility model provides a kind of PCB board production dust removal device, not only can be filtered to polluted air multiple times, to effectively improve the quality of device whole to air filtration and purification, and filter mechanism whole is not prone to damage, effectively reduce the probability that device is delayed due to filter mechanism damage and the overall production efficiency of PCB production line.

The utility model relates to a kind of instrument quick dismounting structure, including base (1) and control box (2) installed on base (1), the top surface of base (1) is symmetrically provided with left clamping hook (1.1) and right clamping hook (1.2), the bottom surface of control box (2) two sides is respectively provided with left clamping groove (2.1) and right sliding slot (2.2), left clamping hook (1.1) is inserted in left clamping groove (2.1), buckle piece (3) is slidably arranged in right sliding slot (2.2), and the left end of buckle piece (3) is provided with the right clamping groove (3.6) for the insertion of right clamping hook (1.2).The utility model relates to a kind of instrument quick dismounting structure, easy to operate and long service life.

The utility model is suitable for steel structure technical field provides a kind of steel structure column beam connecting structure, including steel pipe column and steel pipe beam, the upper portion of steel pipe column is provided with a corbel and passes through, the upper portion of the outer end of corbel is provided with an opening, the both ends of steel pipe beam inner chamber are respectively fixedly connected with a connecting pipe, when depositing steel pipe beam, the connecting pipe is placed into the inner chamber of corbel and overlaps with the corbel by the opening downward.This steel structure column beam connecting structure, when depositing steel pipe beam, connecting pipe can be embedded into the inner chamber of corbel by opening, and the connecting pipe is supported and positioned by corbel, so that the end of steel pipe beam is accurately aligned with the end of corbel, facilitating subsequent welding operation, and the corbel and steel pipe beam are connected into a whole by welding, the steel pipe beam, corbel and steel pipe column form an integral whole, which can better support the steel pipe beam, has better connection strength, more stable connection and better force transmission effect, and is less likely to deform or damage when bearing load, with higher reliability.

The probe for the computerized flat knitting machine is an elastic probe, and the elastic structure with the automatic reset function and the buffering function is integrally arranged on the probe. The utility model also relates to a broken needle alarm device, which comprises two probes arranged on the left and right of the machine head through insulating bases, an alarm control assembly, the probe is an elastic probe, the elastic structure with the automatic reset function and the buffering function is integrally arranged on the probe, the upper portion of the probe is connected with a weak current lead, and the machine head moves left and right on the needle plate to realize knitting. When the probe lower portion and the broken needle needle foot falling from the needle plate contact, the circuit of the alarm control assembly is connected to realize the broken needle alarm. The elastic probe can effectively reduce the impact force of the needle foot contact and automatically reset after the broken needle alarm is removed. In addition, the probe is arranged at the inner bottom plate of the machine head of the computerized flat knitting machine and located between the left and right sides of the needle lifting cam and the needle returning cam, so that the detection of the broken needle is more timely and accurate, and the knitting product quality is improved.

The application discloses a kind of plug-in connector quick unlocking structure, including socket and plug, and the plug-in end of plug can be inserted in the socket mouth to realize electric connection conduction, first buckle is equipped on the outer side wall of socket, second buckle is movably equipped on the side wall of plug, the second buckle reciprocating motion can be buckled with first buckle and be disconnected, a plurality of passive transmission teeth are equipped on the second buckle, and unlocking handle and handle reset elastic element are further equipped, the unlocking handle can be reciprocating motion and be installed on plug, active transmission tooth is equipped on the unlocking handle, active transmission tooth is engaged with passive transmission tooth and is driven, handle reset elasticity is installed on plug, handle reset elasticity provides the elastic reset force of the unlocking handle to the direction of making second buckle and first buckle buckle, the application can be unlocked while plugging in plug, it is favorable to improve construction efficiency, unlocking transmission mechanism is high in strength, and is not easy to be clamped and damaged.