37results about How to "For a solid connection" patented technology

The invention relates to the field of buildings and particularly relates to a precise building mold support frame system for reinforcing building templates and a use method thereof. The precise building mold support frame system for reinforcing the building templates comprises a line frame unit, a beam bottom support frame, a stress clamping device, a loquat support frame, a cable stayed frame and a moving device capable of being braked. The precise building mold support frame system for reinforcing the building templates can conveniently realize the support and fixing effects on various templates built in the building construction, simultaneously, the structure is simple, the efficiency is high, and the practicability is realized.

The invention discloses a hot air head with the long life. The hot air head comprises a hot air head body, an air cylinder and an output shaft arranged on the air cylinder. The upper end of the hot air head body is fixedly connected with a connecting cylinder used for communicating with a hot air pipe, the side wall of the hot air head body is fixedly connected with a fixing cylinder, the output shaft is inserted into the fixing cylinder, and two cylindrical grooves are symmetrically formed in the rod wall of the end, located in the fixing cylinder, of the output shaft; and thrust springs arearranged in the cylindrical grooves, one ends of the thrust springs are fixedly connected with the inner walls of the cylindrical grooves, the other ends of the thrust springs are fixedly connected with limiting rods, and limiting holes corresponding to the limiting rods are formed in the side wall of the fixing cylinder. The hot air head body is low in weight, so that the load of the air cylinderof a power source is greatly reduced, the service life of the air cylinder can be prolonged, and needed power is reduced; and the hot air head body is high in surface hardness and good in abrasion resistance, thus, compared with an original hot air head, the service life of the hot air head is long, and the quality of products is stable in the production process.

The invention relates to the technical field of cotton crushers, and discloses an efficient cotton crusher used for producing cellulose acetate butyrate. The efficient cotton crusher comprises a bottom plate. The upper end of the bottom plate is fixedly connected with a crushing box through a support. The upper end of the crushing box communicates with a feeding hopper. The inner wall of the bottom of the crushing box is fixedly connected with a triangular guide block. The upper end of the triangular guide block and the inner wall of the top of the crushing box are rotationally connected withthe same first crushing rod through a ball bearing. The upper end of the first crushing rod penetrates through the upper end of the crushing box and is fixedly connected with a first driven bevel gear. The upper end of the crushing box is fixedly connected with a crushing motor in a clamped manner. An output shaft of the crushing motor is fixedly connected with a first driving bevel gear engaged with the first driven bevel gear. The efficient cotton crusher used for producing cellulose acetate butyrate has the advantages that multi-stage gradual cotton crushing operation can be achieved, and the cotton crushing efficiency is greatly improved.

The invention discloses a device to prevent the door closed, and particularly to a locator for positioning a sliding door. The agricultural machinery blade fixing frame includes a bottom plate and an elastic rod, and the elastic rod includes a first end, a middle part and a second end, and the first end, the middle part and the second end are connected in turn from back to front. The first end is fixed to the rear end of the bottom base through bolts, and the middle part is inclined upwards to form an elevation. The bolt includes a bolt head and a thread column, and the thread column is connected to the bottom plate by means of threaded connection, and a spring washer, a compression spring and a flat washer are orderly sheathed on the thread column between the bolt head and the bottom plate. The first end is clamped between the spring washer and the compression spring, and the second end bends downwards to form an arc structure. The disclosure overcomes the defects of inconvenient disassembly and damages to door body existing in prior art, and provides an agricultural machinery blade fixing frame which can enhance the friction of door body relative to the ground by elastic pressing.

The invention relates to a membrane-free partially degradable left atrial appendage occluder, and belongs to the technical field of medical instruments. The occluder comprises an upper disc surface, a bracket body and a lower disc surface, a bracket body is arranged between the upper disc surface and the lower disc surface; the plugging device is cylindrical or drum-shaped; and the upper disc surface is of a closed structure. Due to the closed plug type design, the oppression of the plugging device on the peripheral structure tissue of the left auricle is reduced; complications caused by auricle puncture are reduced; and the requirement for the depth of the implanted left auricle is low, and the application range is wide. The occluder is woven with a dense net, the effect of blocking blood flow is achieved, a traditional flow blocking film is replaced, the occluder can pass through a smaller conveying sheath, and iatrogenic atrial septal defects are avoided. The degradable high polymer material is adopted, so that the metal implantation amount of the left auricle plugging device and the load on the heart of a patient are reduced. Through the design of the forming ring in the plugging device, the radial supporting force of the plugging device is enhanced, and the stability of the plugging device in the body is improved.

The invention discloses a folding magnetic type sweeping mop. The folding magnetic type sweeping mop includes a mop head, wherein the bottom end of the mop head is fixed with mopping cotton, and the top end of the mop head is hinged with a lower towbar through a rotating pin; the top end of the lower towrod is hinged to an upper towbar by a hinge; an upper fixing block is fixed at the left bottomof the upper towbar; a lower fixing block is fixed at the upper part of the left side of the lower towbar; a moving plate is arranged in the upper fixing block; the top end of the moving plate penetrates the top wall of the upper fixing block; the bottom end of the moving plate penetrates the bottom wall of the upper fixing block and the top wall of the lower fixing block in order and extends intothe lower fixing block; the left side of the lower fixing block is fixedly connected to the moving plate by a fixing bolt; the left upper part of the moving plate is connected and a moving block; a spring is connected to the right side of the top end of the moving block; and the top end of the spring is fixed on the top wall in the upper fixing block. The folding magnetic type sweeping mop has the advantages of being convenient to operate and use, being foldable, occupying small space, and being able to prevent potential risks caused by unconscious touch.

The invention relates to the technical field of automobile accessories, and discloses a wiring harness connector terminal plugging device for automobile wiring harness production, which comprises a fixed end. A binding post is fixedly mounted in the middle of the inner wall of the fixed end, a conductive post is movably mounted in the middle of the binding post, and a reset spring is movably mounted on the inner wall of the binding post. One end of the reset spring is fixedly installed on the conductive post, the other end of the reset spring is fixedly installed on the inner wall of the binding post, and a wire is fixedly installed on the inner wall of the fixed end. The driving column is arranged on the binding post, so that in the clamping process of the movable end and the fixed end, the driving column is locked on the locking groove and the guide groove, self-locking is formed, the driving column can lock the locking groove and the binding post, and therefore what is guaranteed is that in the current flowing process, the phenomenon of poor contact caused by separation of the power transmission sleeve and the binding post due to vibration is prevented, and the purpose of stable connection of the end is finally achieved.

The invention discloses an underground support pile glass fiber rib-steel reinforcement cage and a connecting method thereof. The technical problem that in the prior art, glass fiber ribs cannot be stably connected, and the glass fiber ribs and steel reinforcements cannot be stably connected is solved. The glass fiber rib-reinforcement cage comprises a glass fiber rib cage and a reinforcement cage, wherein the glass fiber rib cage comprises glass fiber rib main ribs, annular glass fiber rib reinforcing ribs and spiral glass fiber rib stirrups; the steel bar main reinforcements and the glass fiber reinforced plastic main reinforcements are connected through buckle mechanisms. The connecting method mainly comprises the steps that the glass fiber rib main ribs and the steel bar main ribs are connected through the buckle mechanisms, and the glass fiber rib main ribs are fixedly bound with the annular glass fiber rib reinforcing ribs, the spiral glass fiber rib stirrups and the horizontal glass fiber rib reinforcing ribs through 10 # iron wires respectively. The steel bar main reinforcements and the glass fiber reinforced plastic main reinforcements are connected through the buckle mechanisms, the whole structure is stable and firm, and the requirement for smooth crossing of a shield in the later period can be met.

The invention provides a liquid level sensor. The liquid level sensor comprises a threaded connector and an outer pipe used as an outer electrode, wherein threads are arranged on the outer wall of the upper end of the threaded connector, the upper end of the outer pipe extends into an inner cavity of the threaded connector, the outer diameter of the outer pipe fits the diameter of the inner cavity of the threaded connector, and the outer wall of the upper end of the outer pipe is directly welded to the inner wall of the inner cavity of the threaded connector, or a fastening and connecting structure is arranged between the outer wall of the upper end of the outer pipe and the inner wall of the inner cavity of the threaded connector. The invention further provides a connecting and fixing method of the outer pipe of the liquid level sensor. The liquid level sensor is simple in structure, the connecting and fixing method of the outer pipe of the liquid level sensor is easy and convenient to operate, and the liquid level sensor is firmly installed so that safety and reliability of the liquid level sensor in the process of actual use can be guaranteed.

The invention discloses a concrete filled steel tube support connecting device. The concrete filled steel tube support connecting device can facilitate in-site construction casting and achieve stablyconnection of a concrete filled steel tube support. During connecting construction, a worker only needs to mount parts such as anchor rods of a positioning and tensioning module I and a positioning and tensioning module II, then extends the positioning and tensioning module I and the positioning and tensioning module II into the steel tubes of the concrete filled steel tube support respectively, clamps a connecting module between the positioning and tensioning module I and the positioning and tensioning module II, welds axial connecting modules and fills in concrete grout to complete a connection process. The concrete filled steel tube support connecting device is good in connecting stability, high in bearing capacity, stable and reliable in axial and radial connection and tensioning and capable of effectively ensuring the connecting safety and firmness of the concrete filled steel tube support and facilitating construction.

The invention relates to the technical field of health monitoring, and discloses a middle-aged and elderly people cardiovascular and cerebrovascular disease real-time evaluation watch, which comprisesa watch body, two clamping plates are symmetrically and fixedly connected to the two ends of the watch body, and the side walls of the opposite sides of the two clamping plates are rotationally connected with the same rotating block through pin shafts. A watchband is fixedly connected to the side wall of the rotating block, a medicine storage box is fixedly connected to the side wall of the watchbody, an opening is formed in one side of the medicine storage box, and a cover plate is rotatably connected to the side wall of the lower end, corresponding to the opening, of the medicine storage box through a rotating shaft. The watch body can monitor the physical state of the elderly in real time to give an alarm, so that a user can rapidly take out corresponding medicine from the medicine storage box to take the medicine for timely treatment, and the safety can be greatly improved.

The invention relates to the technical field of vacuum arc-extinguishing chambers, and particularly discloses an improved vacuum arc-extinguishing chamber, which comprises an insulating shell, a static contact and a movable moving contact. A corrugated pipe and a shielding cylinder are positioned in the insulating shell, the corrugated pipe sleeves the outer side of the moving contact, and a firstsolder ring is welded to seal a gap between one end of the corrugated pipe and the insulating shell; the second welding flux ring is used for welding and sealing a gap between the other end of the corrugated pipe and the moving contact; the shielding cylinder surrounds and sleeves the outer side of the first contact and the outer side of the second contact; the third solder ring is welded with the shielding cylinder and the insulating shell; the fourth solder ring is used for welding and sealing a gap between the static contact and the insulating shell. By means of the arrangement of the first solder ring, the second solder ring and the fourth solder ring, welding sealing of the first contact, the second contact and the insulating shell is achieved, and the vacuum sealing performance of the first contact and the second contact is fully guaranteed. By means of the arrangement of the third solder ring, stable connection between the shielding cylinder and the insulating shell is achieved, and the electromagnetic shielding performance of the first contact and the second contact is fully guaranteed.

The invention provides a positioning pin with the improved structure, and belongs to the technical field of machinery. The positioning pin solves the problem that an existing positioning pin is poor in stability. The positioning pin with the improved structure comprises a pin body, a main oil hole is formed in the pin body in the axial direction of the pin body, a plurality of auxiliary oil holescommunicating with the main oil hole are formed in the side wall of the pin body in the radial direction, a positioning groove is further formed in the side wall of the pin body, nitrile butadiene rubber is installed in the positioning groove, a fastener is fixedly arranged on the nitrile butadiene rubber, a part of the fastener protrudes out of the side wall of the pin body, the fastener comprises a fastening part and guide parts, wherein the two ends of the fastening part extend outwards to form the guide parts, the end surfaces of the two guide parts are both planes, one ends of the guide parts are provided with guide-in corners, the outer ends of the guide-in corners are slightly lower than the side wall of the pin body, and round angles are formed between the other ends of the guide parts and the fastening part. The positioning pin has the advantages of being simple in structure and good in stability.

The invention relates to the technical field of financial payment, and discloses an internet supply chain financial credit payment transaction tool comprising a POS machine body. Two L-shaped clampingplates are symmetrically and fixedly connected to the side wall of the POS machine body, and the same wire fixing box is clamped between the two L-shaped clamping plates. Fixing plates clamped in theL-shaped clamping plates are fixedly connected to the two opposite sides of the end, close to the POS machine body, of the wire fixing box, and the fixing plates and the L-shaped clamping plates arefixedly clamped through clamping mechanisms. According to the POS machine, the whole POS machine body has good storage performance, and a charging wire is convenient to carry and use.

The invention relates to the technical field of trackside equipment installation, in particular to a trackside equipment installation structure suitable for a U-shaped beam, which comprises a trackside equipment installation part and a retaining part thereof, the retaining part is used for connecting a sound barrier embedded part on the top surface of a side wing of the U-shaped beam, and the trackside equipment installation part and the retaining part form a space for accommodating a sound barrier; according to the trackside equipment installation structure, the sound barrier embedded part is fully utilized, punching of a beam body or a sound barrier stand column is not needed, and the influence caused by whether the sound barrier is installed or not is avoided.

The invention relates to the technical field of fire prevention of buildings, and discloses an efficient fire prevention device of an intelligent building. The efficient fire prevention device comprises a steel pipe, a manual signal butterfly valve held switch, DN100 plastic-coated steel, a water flow indicator, a solenoid valve, a fire monitor fire-extinguishing device, a fixing support, a steelpipe fixing piece, an electric valve, a water flow indicator fixing frame, a fixing nut, an anti-skid screw slice, a manual signal butterfly valve and a fixing seat fixedly connected to the wall surface; a T-shaped groove is formed in the inner wall of the fixing seat; a positioning block is clamped in the T-shaped groove and is fixedly connected with the fixing seat through a positioning mechanism; the lower end of the positioning block is fixedly connected with a first semi-circular plate through a supporting rod; and the lower end of the first semi-circular plate is connected with a secondsemi-circular plate through a hinge. The efficient fire prevention device of the intelligent building has the advantages that the steel pipe can be mounted and dismounted quickly and conveniently andthe cushioning performance is good.