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42results about How to "Avoid vulnerable situations" patented technology

Full-automatic two-sided deburring machine

The invention relates to a full-automatic two-sided deburring machine, and belongs to machining machinery of metal plate flat workpieces. The full-automatic two-sided deburring machine comprises a machine frame, a feeding mechanism, a forward-direction rolling brush device, a reverse-direction rolling brush device and a compressing device. The feeding mechanism comprises three sections of conveying belts and two supporting pieces, the first conveying belt, the first supporting piece, the second conveying belt, and the second supporting piece and the third conveying belt are sequentially arranged on the machine frame in the conveying direction of a metal plate flat workpiece; the forward-direction rolling brush device and the reverse-direction rolling brush device each comprises a set of steel wire rolling brushes arranged up and down, the forward-direction rolling brush device is installed to correspond to the first supporting piece, and the reverse-direction rolling brush device is installed to correspond to the second supporting piece; and in one set of steel wire rolling brushes, two steel wire rolling brushes are located above and below the supporting pieces correspondingly, the metal plate flat workpiece passing through the supporting pieces is cut jointly, the compressing device comprises compressing rollers, and the compressing rollers are arranged on the front side andthe rear side of each set of steel wire rolling brushes correspondingly. According to the full-automatic two-sided deburring machine, the efficiency is improved, and the product quality is ensured.
Owner:GUANGZHOU RUISU INTELLIGENT TECH CO LTD

Light emitting diode (LED) lamp with front and rear cavity structures

The invention discloses a light emitting diode (LED) lamp with front and rear cavity structures, and belongs to the technical field of lighting devices. The LED lamp comprises a lamp cap shell, a bottom cover and a rear cover, wherein the front part of the lamp cap shell and the upper part of the bottom cover form a front cavity; the rear part of the lamp cap shell and the rear cover form a rear cavity; an LED aluminum substrate and a plurality of LED lamp beads are arranged in the front cavity; a power supply is arranged in the rear cavity; the back surface of the LED aluminum substrate is directly attached to the inner surface of a shell main body; a cooling fin is arranged outside the front part of the lamp cap shell; the LED lamp beads are longitudinally arranged to form a plurality of straight bodies and are aligned with straight cooling ribs of the cooling fin; a water-proof structure which consists of a seal ring, a pressing strip and a pressing strip screw is also arranged in the front cavity; and adjusting steps capable of adjusting elevation angle alpha of an LED street lamp are also arranged in the rear cavity. The LED lamp has the advantages of good cooling effect and high water-proof capacity, connection angle of the LED lamp and a connecting rod is convenient to adjust, the LED lamp is convenient to use and is not required to be frequently maintained, and a powerincoming line is stably connected.
Owner:宁波亿鑫诚电器有限公司

Medical suture zipper

The invention provides a medical suture zipper. The medical suture zipper comprises medical adhesive blocks 1 and 1', a long strip 2 and convex teeth 4, wherein the medical adhesive blocks are pasted on skin on both sides of a wound needing to be sutured respectively, and are made of a transparent medical plastic material; the adhesive blocks 1 and 1' have a plurality of porous structures; the long strip 2 is connected to the adhesive blocks, and is made of a flexible material; the convex teeth 4 are continuously arranged on the long strip 2 at intervals; one side of the medical adhesive block 1 and one side of the medical adhesive block 1' are coated with an adhesive; the sides coated with the adhesive are covered with a peeling layer 8; the long strip 2 is connected to the adhesive block 1; a lock catch 5 for fixing the convex teeth is fixed on the adhesive block 1'. According to the medical suture zipper provided by the invention, only one of the adhesive blocks is provided with a tape with the convex teeth, and the other adhesive block is provided with the lock catch, so that the problem of too tight or too loose traction can be avoided, the operation accuracy is increased, the appearance of scars after wound healing is ensured as far as possible, and twisted curved scars left between suture zipper units are avoided.
Owner:BOZHOU CITY THE NEW HEALTH TECH CO LTD

Wire clamp of grounding wire

InactiveCN102456957APrevent accidents in violation of regulations caused by mistakenly electrified and connected to the ground wireAvoid dangerous accidentsElectric connection structural associationsClamped/spring connectionsCopper wireEngineering
The invention discloses a wire clamp of a grounding wire. A reverse-U-shaped insulating outer bracket is arranged on an insulating outer bracket fixing base; a probe aluminum strip is arranged outside the insulating outer bracket; a flexible copper wire is arranged inside the insulating outer bracket; the insulating outer bracket and the flexible copper wire are fixed on the insulating outer bracket fixing base through fixing pins; and an electrification alarm device is arranged in the insulating outer bracket fixing base and connected with the probe aluminum strip. In the wire clamp of the grounding wire, the probe aluminum strip is connected with an acoustic-optical electrification alarm device, and when an operator performs grounding operation, if a grounding part is electrified, an acoustic-optical alarm can be given to timely remind the operator of a dangerous condition, so that a dangerous accident in electrified hanging of the grounding wire by the operator can be avoided, and a violation accident in electrified hanging of the grounding wire caused by error entering of an operation interval and error climbing of a pole by the operator during operation can be prevented.
Owner:PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER

Multi-damping protection type medium adsorption type decoration engineering material crushing equipment

The invention discloses multiple damping protection type medium adsorption type decoration engineering material crushing equipment. The equipment comprises a top anti-ejection type crushing assembly, an embedded damping shock absorption screening assembly, an impact type medium adsorption type dust suppression and collection assembly and a lifting and conveying assembly. The invention belongs to the technical field of building material decoration, and particularly relates to multiple damping protection type medium adsorption type decoration engineering material crushing equipment which is high in reliability, environmentally friendly and wide in application range. The buffering and damping effects of the buffering movable plate are improved through repulsive force between the first permanent magnet and the second permanent magnet, flexible blocking of splashing fragments is achieved in the brittle decoration material crushing process under the condition that no driving unit or sensor exists, the materials are rapidly crushed, meanwhile, the splashing fragments are prevented from damaging equipment, and the service life of the equipment is prolonged. And workers are accidentally injured.
Owner:江苏微雀信息科技有限公司

Invitation code generation method and device, invitation code verification method and device, electronic device and storage medium

The invention discloses an invitation code generation method and device, an invitation code verification method and device, an electronic device and a storage medium and the method comprises the steps: generating a character string according to a preset rule, and generating a first redundancy check code according to the character string; generating a reference characteristic value of the characterstring according to the first redundancy check code; generating an identification code which is used for uniquely representing the reference characteristic value, and storing the reference characteristic value and the identification code into a database according to a corresponding relation between the reference characteristic value and the identification code; generating a first characteristic value according to the first redundancy check code, the identification code and a preset private key; generating a second redundancy check code according to the first feature value; and generating invitation code information according to the first redundancy check code, the identification code and the second redundancy check code. Therefore, part of character strings in the invitation code are stored in the database in the form of feature values (namely ciphertext), so that the security and the stability of the system are improved, and the verification efficiency and the performance of the invitation code can be effectively improved.
Owner:BEIJING KINGSOFT INTERNET SECURITY SOFTWARE CO LTD

Power device capable of receiving torsion by wireless sensor

The invention relates to the technical field of power devices, in particular to a power device for power assistance. The device comprises a drive wheel, a driven wheel, an electric hub and a control module, wherein the drive wheel is arranged on a power shaft, and a wireless sensor is arranged on a stress deformation area of the drive wheel; the driven wheel is connected with the drive wheel through a chain or a belt, and is linked with a load; the electric hub and the driven wheel are coaxially arranged and drive the load together; and the control module controls the electric hub to work, a wireless receiver is arranged on the control module, and the wireless receiver and the wireless sensor cooperate with each other to work. The device realizes that manpower and electric power are integrated into a whole through a structurally scientific and reasonable design so as to optimize drive; the input volume of manpower is transmitted to the control module through the wireless sensor, the control module drives the electric hub to output power with the same volume according to the manpower volume to the driven wheel so as to achieve multiply increased power. The device is lighter and more convenient to use, improves the power effect, and has the advantages of simple structure, long service life and good safety.
Owner:DONGGUAN ZHONGQIANG IND

Integrated breast pump

The invention provides an integrated breast pump, and belongs to the technical field of breast pumps. The breast pump comprises a trumpet cover used for sucking breast milk, a breast pump host, and abreast milk storage container. A breast milk outlet of the trumpet cover is communicated with a mouth portion of the breast milk storage container in a closed manner. The trumpet cover comprises a deformation portion made by an elastic material. The breast pump host is provided with a concave portion. Space in the concave portion is communicated with an air channel of the breast pump host. When the trumpet cover is arranged on the breast pump host, the deformation portion is in the concave portion. The trumpet cover seals the mouth portion of the concave portion. Through arranging the trumpetcover 1, the breast milk storage container 3, and the breast pump host 2 in an integrated manner, volume of the integrated breast pump is effectively reduced, an external pipe used to connect the trumpet cover with the breast pump host in the prior art is completely not needed, and a condition that the external pipe is easily damaged in use and storage processes is prevented, service life of the breast pump is prolonged, and the breast pump is convenient to store.
Owner:江苏新贝电器有限公司

Face picture encryption method and device thereof, computer equipment and storage medium

The invention relates to a face picture encryption method and a device thereof, computer equipment and a storage medium, and belongs to the technical field of artificial intelligence. The method comprises the following steps: acquiring N face pictures with a time sequence; performing feature extraction on the N face pictures, and obtaining picture features corresponding to the N face pictures; sequentially inputting the picture features into a recursive network in an image prediction model according to a time sequence, and outputting respective prediction information of the N face pictures; using the prediction information is used for indicating a prediction result of the corresponding face picture; wherein the recursive network is a network for predicting the input picture features through state information, and updating the state information based on the picture features of the input face picture; and encrypting the N face pictures based on the respective prediction information of the N face pictures. According to the scheme, the condition that the encryption format of the face image is easy to crack is avoided, and the security of the encrypted face image is improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Display panel assembly and electronic equipment

The invention discloses a display panel assembly and electronic equipment; the display panel assembly comprises a first substrate, a second substrate, and a cover plate; the cover plate is attached to one side, far away from the first substrate, of the second substrate; a first projection zone is arranged in a second projection zone; the first projection zone is the first substrate projection on the cover plate; the second projection zone is the second substrate projection on the cover plate. The display panel intensity can be enhanced, thus reducing the display screen fragmentation probability in falling.
Owner:SHENZHEN TINNO WIRELESS TECH

Integrated hand-free breast pump

The invention provides an integrated hand-free breast pump, and belongs to the field of breast pumps. The integrated hand-free breast pump comprises a horn cover for breast pumping, a breast pump hostand a milk storage container. The breast pump host is provided with a three-way member. The horn cover is fixed on the three-way member. The milk storage container is arranged inside the breast pumphost. The breast pump host provides suction force to the horn cover through the three-way member. The horn cover can be communicated with the milk storage container. The horn cover, the breast pump host and the milk storage container are arranged as a whole so that the volume of the breast pump can be effectively reduced, the external pipe connecting the horn cover and the breast pump host in theprior art can be completely eliminated, the situation that the external pipe is liable to be damaged in the use and storage process can be avoided and storage is facilitated. Meanwhile, the milk storecontainer is arranged inside the breast pump host so that the trouble of needing the hand to support during the breast pumping process can be avoided, the hands of the mother are freed and other affairs can be handled conveniently by the nursing mother.
Owner:江苏新贝电器有限公司

Floating garbage fishing device and method for water conservancy project

The invention discloses a floating garbage fishing device and method for a water conservancy project, and belongs to the technical field of environmental protection. The floating garbage fishing device comprises a salvaging ship, wherein two sets of supporting bearing seats with the same structure are arranged on the right side of the top of the salvaging ship, the two sets of supporting bearing seats are connected with a mounting shaft, and a conveying belt is arranged on the mounting shaft; and fixing seats are arranged on the front side and the rear side of the top of the conveying belt, hydraulic cylinders are hinged to the bottoms of the fixing seats, and the bottom ends of the hydraulic cylinders are connected to the salvaging ship. According to the floating garbage fishing device and method, garbage on the shore is sprayed through two rows of uniformly arranged spray heads, the garbage on the shore is separated from winding of plants on the shore through the impact force of spraying, so that the garbage on the shore can be conveyed through the conveying belt, during conveying, a driving motor works so that a cutting disc can be driven to rotate, then the garbage conveyed tothe conveying belt can be prevented from being wound together and being not prone to moving, moreover, the effect of upwards stirring the garbage can be achieved, and then the conveying belt can be conveniently assisted to convey the garbage.
Owner:李慧

Combined gardening seedling planting and breeding support

The invention relates to a combined gardening seedling planting and breeding support which comprises a base, a supporting main pipe, a plurality of supporting branch pipes and a plurality of plant planting and breeding container; the supporting main pipe is vertically installed in the middle of the upper end of the base and is hollowed; a plurality of water outlets communicated with the interior of the supporting main pipe are formed in the side wall of the supporting main pipe; the supporting branch pipes are hollow pipes with one open ends, and the hollow pipes correspond to the multiple water outlets one to one, and the open end of each supporting branch pipe is communicated with the corresponding water outlet; the multiple plant planting and breeding containers are installed at the upper ends of the supporting branch pipes at intervals, each plant planting and breeding container is internally provided with a water absorbing strip, and the lower end of each water absorbing strip penetrates through the upper end of the corresponding supporting branch pipe and stretches into the supporting branch pipe; a water tank is arranged at the upper end of the supporting main pipe, the water tank is communicated with a water outlet pipe, and the water outlet pipe is communicated with the interior of the supporting main pipe. The support has the advantages of being simple in structure, convenient to use, capable of achieving seedling planting, breeding and protecting, and quite convenient to operate, and no water needs to be added manually.
Owner:HUBEI ENG UNIV

Light-weight high-strength prefabricated slab for building

The invention belongs to the technical field of building slabs, and particularly relates to a light-weight high-strength prefabricated slab for a building. The light-weight high-strength prefabricatedslab for the building comprises a prefabricated slab frame, wherein a prefabricated slab filling cavity is arranged in the prefabricated slab frame; cement slabs, reinforcing ribs, wire reinforcementmeshes and circular cavity pipes are sequentially arranged at the top end of the inner part of the prefabricated slab filling cavity; and the cement slabs, the reinforcing ribs and the wire reinforcement meshes are symmetrically distributed at the top ends and the bottom ends of the circular cavity pipes. The double-layer reinforcing ribs and the wire reinforcement meshes are combined, so that the manufactured prefabricated slab has favorable hardness and strength, the overall strength of the distribution positions of the circular cavity pipes can be improved, the overall stability of the prefabricated slab is improved, the occurrence of the phenomenon that the prefabricated slab is locally weak due to the distribution of the circular cavity pipes is avoided, and the overall firmness of the prefabricated slab is improved; and the reinforcing ribs and the wire reinforcement meshes are made of cold-drawing low-carbon steels, and high-strength light-weight aggregate cores additionally arranged in the cement slabs are combined, so that the overall firmness of the prefabricated slab is improved.
Owner:湖南中富杭萧建筑科技股份有限公司

Earphone with excellent winding prevention effect

InactiveCN109672953AExcellent anti-winding effectAvoid entanglementEarpiece/earphone attachmentsWear resistantEngineering
The invention relates to an earphone with an excellent winding prevention effect. The earphone comprises a control shell, wherein an earphone wire I is arranged at the right side of the control shell;an earphone plug is arranged at the right side of the earphone wire I; two earphone wires II are arranged on the left side of the control shell; and an earplug is arranged at one end, away from the control shell, of each second earphone wire. A rubber protection head, earphone wire positioning columns, an aluminum alloy layer, a wear-resistant layer, a TPE layer, a damping sleeve I and a dampingsleeve II are matched with each other, so that a problem that the earphone wire of a traditional earphone is easily wound is solved; the earphone with the excellent winding prevention effect has the advantages of being excellent in winding prevention effect, simple in structure and convenient to operate, a user can quickly take up the earphone wire, the situation that the earphone wire is wound isavoided, the earphone wire is conveniently untied after winding, convenience is brought to the user, and the service life of the earphone is prolonged.
Owner:惠州今科电子有限公司

Free-range cattle multifunctional restraining device

PendingCN113558810AEasy to sense gravity informationEasy to achieve weighingAnimal feeding devicesAnimal fetteringAgricultural engineeringEngineering
The invention discloses a free-range cattle multifunctional restraining device, and relates to the technical field of agricultural and pastoral machinery manufacturing. The technical scheme of the invention has the key points that the free-range cattle multifunctional restraining device comprises a bottom plate and a top plate, and two feeding lifting devices are arranged at one end of the top of the bottom plate at intervals; a restraining rod is transversely arranged between the two feeding lifting devices, and the restraining rod is perpendicular to the conveying direction of a conveying chain; first restraining ropes are arranged at the two ends of the restraining rod, a connecting rod is arranged in the middle of the restraining rod, the connecting rod is of a like L shape, and a food groove is fixedly connected to the end, away from the restraining rod, of the connecting rod; a cow head fixing plate is arranged at the end part of the top plate, and a first arc-shaped groove is formed in the bottom end of the cow head fixing plate; and telescopic baffle device are arranged at the two ends of the top of the bottom plate, and each telescopic baffle device comprises a first protection baffle, a second protection baffle, a third protection baffle and a sliding device. According to the restraining device, the head of a cattle can be restrained when the cattle eat food so as to achieve the labor-saving effect; and meanwhile, the lengths of the baffle devices can be adjusted according to different body types of cows so as to implement improvement of the restraining effect.
Owner:袁子龙

Non-shoulder-carrying device for school supplies

The invention provides a non-shoulder-carrying device for school supplies. The non-shoulder-carrying device comprises an upper folding bag, universal wheels, inner buckles, side buckles, reinforcing rods, an upper clamping plate and a lower clamping plate. A lower folding bag is hinged to the lower part of the upper folding bag; an upper chain seam is vertically formed in the middle of the upper folding bag; the upper sliding groove is divided into a left position and a right position and is formed in the two sides of the front lower portion of the upper folding bag, a lower chain seam is vertically formed in the middle of the lower folding bag, the two sides of the front portion of the upper surface of the lower folding bag are provided with locking block grooves respectively, a lower sliding groove is formed in the upper portion of the lower folding bag, and lower locking handles are fixedly connected to the two sides of the lower folding bag. The upper folding bag and the lower folding bag can be unfolded and thus the upper folding bag and the lower folding bag form a high double-layer bag body. The lower end of the lower folding bag is provided with the universal wheels; aftera telescopic rod is unfolded, a student can pull the telescopic rod to walk, so that situations that the spine protrudes backwards, protrudes laterally, inclines forwards or twists because the knapsack is too heavy, muscles are possibly fatigued due to extreme tension, and the neck, shoulders and the back are easily injured are avoided.
Owner:SUZHOU WEITENG ENTERPRISE MANAGEMENT CONSULTING SERVICE CO LTD

Drilling tool effectively avoiding damage of cutting edge

The invention discloses a drilling tool effectively avoiding damage of a cutting edge, relates to the field of machining cutters, and provides the drilling tool capable of effectively avoiding damage of the cutting edge. The drilling tool comprises a drill bit body, an inner edge blade and an outer edge blade, wherein the inner edge blade and the outer edge blade are connected with the drill bit body. The inner edge blade is provided with an inner edge, and the outer edge blade is provided with an outer edge. The inner edge comprises a first inner edge section, a second inner edge section and a third inner edge section. The part, located at the foremost position, of the first inner edge section is a centering point, and the first inner edge section extends outwards to the rear portion from the centering point. The third inner edge section extends outwards to the front portion from the center of the drill bit body. The second inner edge section is located between the first inner edge section and the third inner edge section. The second inner edge section extends outwards to the front portion from the third inner edge section. The outer end of the second inner edge section is located behind the outer end of the first inner edge section. The second inner edge section is in smooth transition with the first inner edge section and the third inner edge section. According to the drilling tool, the situation that the inner edge cutting edge is prone to breakage can be effectively avoided.
Owner:CENTRIX EG

Light emitting diode (LED) lamp with front and rear cavity structures

The invention discloses a light emitting diode (LED) lamp with front and rear cavity structures, and belongs to the technical field of lighting devices. The LED lamp comprises a lamp cap shell, a bottom cover and a rear cover, wherein the front part of the lamp cap shell and the upper part of the bottom cover form a front cavity; the rear part of the lamp cap shell and the rear cover form a rear cavity; an LED aluminum substrate and a plurality of LED lamp beads are arranged in the front cavity; a power supply is arranged in the rear cavity; the back surface of the LED aluminum substrate is directly attached to the inner surface of a shell main body; a cooling fin is arranged outside the front part of the lamp cap shell; the LED lamp beads are longitudinally arranged to form a plurality of straight bodies and are aligned with straight cooling ribs of the cooling fin; a water-proof structure which consists of a seal ring, a pressing strip and a pressing strip screw is also arranged in the front cavity; and adjusting steps capable of adjusting elevation angle alpha of an LED street lamp are also arranged in the rear cavity. The LED lamp has the advantages of good cooling effect and high water-proof capacity, connection angle of the LED lamp and a connecting rod is convenient to adjust, the LED lamp is convenient to use and is not required to be frequently maintained, and a powerincoming line is stably connected.
Owner:宁波亿鑫诚电器有限公司

Anti-theft nut structure

The invention relates to an anti-theft nut structure. The anti-theft nut structure comprises an anti-theft nut structure body, a groove, a soft cushion and a key hole, wherein a threaded strip is mounted on the outer surface of the ant-theft nut structure body; a nut is mounted at the left side of the anti-theft nut structure and is fixedly connected to the anti-theft nut structure; a nut sleeve is mounted in the periphery of the nut and is in threaded connection with the nut; and an outer frame is mounted in the nut sleeve and is in welding connection with the outer frame. The anti-theft nutstructure has the beneficial effects that the threaded strip is arranged at the outer wall of the anti-theft nut structure, and the threaded strip is capable of increasing the frictional force betweenthe nut structure and a dismounting tool while unscrewing or mounting the nut structure, and thus the nut structure can be simply and conveniently dismounted; an irregular hole is formed in the top part of the anti-theft nut structure, thus the nut structure can only be rotatably dismounted through an irregular tool fitting the irregular hole, and as a result, the problem that a theft simply dismounts with a normal tool can be avoided.
Owner:FOSHAN UNIVERSITY

Antibacterial ceramic soup bowl structure

The invention discloses an antibacterial ceramic soup bowl structure. The structure comprises a ceramic soup bowl body (1), a ceramic bottom pad (2), an anti-oxidation layer (3) and a photocatalyst layer (4). A reinforcement ceramic ring (5) is arranged at the outer side of a bowl opening of the ceramic soup bowl body, the ceramic bottom pad is arranged at the lower end of the ceramic soup bowl body, and the ceramic soup bowl body and the ceramic bottom pad are integrally formed; two or more edge lugs (6) are arranged at the outer side of the ceramic soup bowl body, a water collection groove (7) is formed in the edge of the upper end face of the ceramic bottom pad, and a rubber pad (8) is arranged at the lower end of the ceramic bottom pad; an anti-skid thread (9) is formed in the lower end of the rubber pad, the outer side wall of the ceramic soup bowl body is coated with a thermosensitive color-change coating (10), an inner cavity of the ceramic soup bowl body is coated with the anti-oxidation layer (3), and one side of the anti-oxidation layer is coated with the photocatalyst layer. The antibacterial ceramic soup bowl structure is reasonable in structural design.
Owner:江苏中千碧华新材料有限公司

Wire clamp of grounding wire

InactiveCN102456957BPrevent accidents in violation of regulations caused by mistakenly electrified and connected to the ground wireAvoid dangerous accidentsElectric connection structural associationsClamped/spring connectionsCopper wireEngineering
The invention discloses a wire clamp of a grounding wire. A reverse-U-shaped insulating outer bracket is arranged on an insulating outer bracket fixing base; a probe aluminum strip is arranged outside the insulating outer bracket; a flexible copper wire is arranged inside the insulating outer bracket; the insulating outer bracket and the flexible copper wire are fixed on the insulating outer bracket fixing base through fixing pins; and an electrification alarm device is arranged in the insulating outer bracket fixing base and connected with the probe aluminum strip. In the wire clamp of the grounding wire, the probe aluminum strip is connected with an acoustic-optical electrification alarm device, and when an operator performs grounding operation, if a grounding part is electrified, an acoustic-optical alarm can be given to timely remind the operator of a dangerous condition, so that a dangerous accident in electrified hanging of the grounding wire by the operator can be avoided, and a violation accident in electrified hanging of the grounding wire caused by error entering of an operation interval and error climbing of a pole by the operator during operation can be prevented.
Owner:PUYANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER

Tunnel energy pipe piece prefabrication and connection method applied to shield construction

The invention discloses a tunnel energy pipe piece prefabrication and connection method applied to shield construction. The problems that in the prior art, capillary pipes are prone to being damaged,blocking is prone to happening inside, and the construction period is long are solved. A capillary pipe heat exchanger is prefabricated, operation is simple, manual consumption is reduced, and construction quality is reliable. According to the technical scheme, the method comprises the following steps that the set position of a reinforcement cage is welded, and the reinforcement cage is used for fixing steel bars of the capillary pipe heat exchanger; the capillary pipe heat exchanger matched with the sizes of the steel bars is placed in the reinforcement cage and is fixed; inlets and outlets of dry pipes of the capillary pipe heat exchanger are closed under pressure, the reinforcement cage is placed in a mold, concrete is poured, and standing is carried out for a set time so that concreteis solidified; and seepage and blocking detection is carried out on the capillary pipe heat exchanger, and after it is confirmed that the capillary pipe heat exchanger is free of seepage and blocking,the exposed water supply and return dry pipes of the capillary pipe heat exchanger are sealed.
Owner:QINGDAO TECHNOLOGICAL UNIVERSITY

Remote telemetering switch for industrial Internet of Things

ActiveCN107516620ATo overcome the problem of only dialing openAvoid vulnerable situationsElectromagnetic relay detailsCapacitanceComputer module
The invention belongs to the technical field of information automation, and particularly relates to a remote telemetering switch for industrial Internet of Things. The remote telemetering switch for the industrial Internet of Things comprises a mobile phone module, a ringing connector, a diode, a capacitor, a relay, a transverse-T-shaped armature, springs, a plug and a socket. The ringing connector is arranged in the mobile phone module. After one end of the ringing connector is connected with the diode through a guide line, the end and the other end of the ringing connector are connected with the capacitor and the relay in parallel through a guide line to form a circuit. The wide portion of the transverse-T-shaped armature is close to the relay, and the springs are connected to the upper end and the lower end of the transverse-T-shaped armature. The narrow portion of the transverse-T-shaped armature is located between series connection guide lines of the plug and the socket. By the attraction action of the relay and the subsequent spring retraction action, the transverse-T-shaped armature can move leftwards and rightwards, and the two guide lines contact with alternate conducting materials or insulating materials at the same time. Compared with the prior art, the mobile phone signal based switch for the informationized Internet of Things has the advantages of simple structure and turn-on and turn-off instantaneity.
Owner:南京采薇且歌信息科技有限公司

A high anti-loosening spin riveting blind rivet

The invention provides a blind rivet. The blind river comprises a core rod, a rivet sleeve, a screw nut and an U-shaped spring, wherein the tail part of the core rod is provided with a thread section, and the screw nut is sheathed on the tail part of the thread section; the end surface of the tail part of the core rod is inwards provided with a cavity along the axial direction, clamping holes are symmetrically formed in the inner wall of the cavity and are communicated with outside, the U-shaped spring is fixedly arranged in the cavity in a compressing way, the two end parts of the U-shaped spring are outwards provided with clamping pins, and the clamping pins are respectively clamped into the clamping holes of the core rod; the inner wall of the screw nut is symmetrically provided with a concave groove or a through groove around the axis; the end surface of the head part of the screw nut is provided with a first sawtooth section around the axis; the rivet sleeve is sheathed on the core rod, the end surface of the tail part of the rivet sleeve is provided with a second sawtooth section around the axis, and the second sawtooth section is engaged with the first sawtooth section; the part, near the end surface of the tail part, of the rivet sleeve is provided with a local annealing section. The blind rivet has the advantage that the installation reliability without loosening is realized.
Owner:AEROSPACE PRECISION PROD INC LTD
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