41results about How to "Improve fastening effect" patented technology

Disclosed is a plug electric connector. The plug electric connector comprises an insulation body, two terminal groups, a shielding grounding sheet and a shielding housing, wherein the insulation body is provided with a top plate and a base plate, and a plug space disposed among the top plate, the base plate and two side walls is formed at the front end of the insulation body; the two terminal groups are respectively arranged on the inner surface of the top plate of the insulation body and the inner surface of the base plate of the insulation body, and the terminal groups are respectively provided with a plurality of conductive terminals; the shielding grounding sheet is arranged at the rear end of the insulation body and is provided with a shielding sheet body and two elastic bucking arms, the shielding sheet body is arranged at the rear end of the insulation body and is disposed between the two terminal groups, and the two elastic bucking arms respectively project forwards from the two sides of the shielding sheet body and are disposed in the plug space of the insulation body; and the shielding housing accommodates the insulation body, and the shielding grounding sheet effectively reduces overhearing interference between the two terminal groups.

The invention provides a Huff-type pipeline emergency repair joint, which includes two first shells and second shells that are matched with each other, the first shell and the second shell are semicircular shells, and the two shells of the first shell are There is a lock on the side and the joint with the second shell, and the second shell is provided with a groove that is fastened with the lock, the edge of the groove is provided with a sealing film, and the axial direction of the first shell is The edges on both sides are provided with corrugations, and the corrugations of the second shell corresponding to the first shell are provided with grooves matching and fastening with the corrugations. The two shells of the Benhoff-type pipeline repair joint are provided with locks and grooves that are fastened together to make installation and disassembly simple and fast. Road, to avoid leakage during the repair process.

The invention relates to the technical field of pipeline connection, in particular to an efficient pipeline connection buckle. An efficient pipeline connecting buckle comprises a first pipeline, a second pipeline and a female buckle. A plurality of sub-buckles are arranged at the right end of the first pipeline; an auxiliary buckle is also arranged between the two sub-buckles; the female buckle comprises a sealing cover and an adjusting structure; the side wall of the mounting hole is also provided with a secondary buckling groove; a movable secondary buckle lock is also arranged in the secondary buckle groove; an auxiliary buckle groove is further formed in the side wall of the mounting hole, and an auxiliary buckle lock used for clamping the auxiliary buckle to achieve locking is further arranged in the auxiliary buckle groove. The adjusting structure is configured in a manner that when the first pipeline and the mother buckle are sleeved and inserted and reach a preset first position, the son buckle and the son buckle lock quickly contact and abut against each other; and when the first pipeline continues to move and extrude the son buckle lock to pass and reach a preset second position, the son buckle and the son buckle lock are slowly locked and matched, and clamping connection of the son buckle and the mother buckle is completed. According to the invention, the stability and the space sealing performance of pipeline connection are improved, and the working efficiency and the use value of pipeline construction connection operation are greatly improved.

The invention discloses a clamping device for workpiece fastening, which includes a working platform and a pressing mechanism. The pressing mechanism includes a support frame, a pressing block I, a pressing block II, and a buffer member. The supporting frame includes a lifting rod assembly and a horizontal The support beam, the pressing block I, the pressing block II, and the buffer are fixed at the bottom of the middle of the horizontal support beam. There are two pressing blocks I and are symmetrically arranged on both sides of the buffer. The top blocks are respectively located directly below the corresponding briquetting blocks I, and the opposite sides of the lower ends of the two briquetting blocks I are respectively provided with arc-shaped notches. At the bottom of the cross support beam, the lower end is provided with a ball head II, and the top surface of the working platform is provided with a concave cavity. The invention can not only realize high-efficiency and fast buckling of workpieces, improve production efficiency and reduce cost, but also realize stamping operation, and meanwhile, the overall structure is simple, and it is convenient for installation and replacement.

The invention discloses a bolt for a mixing machine. The bolt comprises a bolt head and a screw. The bolt head and the screw are integrated. At least two fixing grooves are in annular array on the upper surface of the bolt head and are communicated with the outside. Fixing blocks are arranged in the fixing grooves. One ends of the fixing blocks extend out of the bolt head. Fixing columns are arranged on the lower surfaces of the portion, extending out of the bolt head, of the fixing blocks. Fastening blocks are arranged in the fixing grooves and above the fixing blocks. The upper surfaces of the fastening blocks are flush with the upper surface of the bolt head. A retaining block is arranged on the upper surface of the bolt head. The area of the lower surface of the retaining block is larger than or equal to the area of the upper surface of the bolt head. The bolt does not shake due to large mechanical vibration caused during working of the mixing machine, thread abrasion and weakening of bolt fastening effect are avoided, and accordingly, working performance and stability of the mixing machine are improved.

The invention discloses a cooperation structure for a medium container and a footrest of a motorcycle and the motorcycle. The medium container is provided with a locating part with a first spacing hole; and the footrest is provided with a mounting base which matches the first spacing hole. By using the cooperation structure, the working personnel can temporarily fix the medium container with the footrest through the cooperation of the first spacing hole and the mounting base, install the medium container and the footrest which are fixed together onto the motorcycle frame, and finally fix the medium container and the footrest onto the motorcycle frame through bolts and other fixing devices. Since the medium container and the footrest can be fixed together, the structure can avoid the trouble of installation difficulty; and since the medium container and the footrest are installed onto the motorcycle frame after being fixed together, the problem of bad buckling effect of the medium container and the footrest is solved. Therefore, the invention has the advantages of convenient installation, favorable buckling effect and the like.

The invention belongs to the technical field of dedusting equipment, and discloses a dust removal cylinder fastening device. The dust removal cylinder fastening device is characterized by comprising aplurality of dust removal cylinder fastening device assemblies (10), wherein the dust removal cylinder fastening device assemblies (10) are in end-to-end series connection so as to form a loop and used for locking dust removal cylinders (9) in the same circumferential direction. The invention also discloses a bag-type dust remover. The bag-type dust remover comprises a dust remover (7), wherein an air inlet (8) is formed in the dust remover (7), a plurality of the dust removal cylinders (9) are arranged in the dust remover (7), and the upper ends of the dust removal cylinders (9) are fixed. The bag-type dust remover is characterized in that the dust removal cylinders (9) in the same circumferential direction are connected with the dust removal cylinder fastening devices, so the dust removal cylinders (9) in the same circumferential direction are locked. The dust removal cylinder fastening device of the invention is simple in structure, convenient to install, high in applicability andcapable of being directly used for transformation of an existing bag-type dust remover.

The invention discloses a method for fastening a member with high strength and low riveting force and a 10.9-level short-tail pulling rivet. The method comprises the following steps that: 1) the rivet consists of a rivet head, an unloading groove, a polished rod, a locking ring groove section, a threaded section and a tail thin short ring groove section; the radius of the inner curved surface of a locking groove is reduced from front to back; the angle of the inner inclined plane of the tail is reduced from front to back; a lantern ring is provided with a convex point, and a latch is arranged in an inner hole; 2) the rivet penetrates, the latch is screwed into the threaded section, and the lantern ring is hooked with the rivet; 3) the rivet extends into a riveting device, and a clamping jaw clamps the tail; 4) the riveting device is started, the lantern ring is extruded to deform to lock a ring groove, and the lantern ring moves forwards to break the convex point; and 5) the riveting device retreats, and fastening is finished. The unloading groove can eliminate stress concentration in riveting and use. The locking groove promotes metal flowing of the lantern ring during riveting and blocks metal flowing of the lantern ring in vibration or separation after riveting, so that fastening property and loosening resistance are improved. Due to the tail groove shape, the clamping jaw is engaged with the tail without releasing, and riveting with low riveting force is promoted. Due to the latch, the lantern ring is convenient to hook, install and operate. The rivet is applied to railway vehicles and heavy trucks with high requirements for fastening property and reliability.

The invention discloses a production process of an outer buckle type paper cup lid, which is characterized in that it comprises the following steps: a. preparing a circular sheet material for producing a paper cup lid; b. bending the periphery of the circular sheet material downward to form The outer edge of the cup lid, the unbent part in the middle of the circular piece becomes the lid body; c. The bottom of the outer edge of the cup lid is bent upwards to form the folded bottom of the lid; d. The middle of the lid body is bent downwards forming a sunken step; e. making a circular inner buckle paper piece; f. pasting the inner buckle paper piece on the bottom of the sunken step, the inner buckle paper piece and the cup lid body have a certain eccentricity. The outer buckle paper cup lid produced by the above process can effectively prevent the cup lid from falling off and ensure reliable sealing inside the cup when used in combination with the paper cup with inner sill.

The invention discloses an adjustable clamping device for fastening workpieces, which includes a working platform and a pressing mechanism. The support frame of the pressing mechanism includes a lifting rod assembly and a horizontal support beam, and a pressure block II and a buffer member are fixed in the middle of the horizontal support beam. There are two briquetting blocks 1, which are respectively slidably arranged on the cross support beam along the transverse direction. The cross support beam is provided with two sliding mechanisms, and the top surface of the working platform is provided with two top blocks. It is located directly below the corresponding pressing block I, and the two top blocks are respectively slidably arranged on the working platform along the transverse direction. The lower end of the block II is provided with a ball head II, and the top surface of the working platform is provided with a concave cavity. The invention can not only realize high-efficiency and fast fastening of workpieces, improve production efficiency, reduce costs, but also realize stamping operation, and the overall structure is simple, easy to assemble and disassemble, and can be freely adjusted according to the size of workpieces. It has a wide range of applications and is easy to use .

The invention discloses a cage door locking structure which comprises a door holder (2), door screen jug lines (6), a baffle (7) and a cage door (8), wherein double lug pieces (1) are arranged on the door holder (2); a lug piece clearance (4) is formed between the two lug pieces (1); a pair of clamping legs (3) is further arranged at the lower end of the door holder (2); a clamping leg clearance (5) is formed between the two clamping legs (3); the door holder (2) is used for fixing the baffle (7) and the cage door (8) into a whole through the lug piece clearance (4) and the clamping leg clearance (5). According to the invention, the cage door locking structure is made of plastics, the mounting is simple, the use is convenient, besides, the cage door locking structure further has a certain protecting function on a door screen steel wire to prolong the service life of the door screen steel wire, the cost is low, and the performance is excellent.

The invention discloses a cooperation structure for a medium container and a footrest of a motorcycle and the motorcycle. The medium container is provided with a locating part with a first spacing hole; and the footrest is provided with a mounting base which matches the first spacing hole. By using the cooperation structure, the working personnel can temporarily fix the medium container with the footrest through the cooperation of the first spacing hole and the mounting base, install the medium container and the footrest which are fixed together onto the motorcycle frame, and finally fix the medium container and the footrest onto the motorcycle frame through bolts and other fixing devices. Since the medium container and the footrest can be fixed together, the structure can avoid the trouble of installation difficulty; and since the medium container and the footrest are installed onto the motorcycle frame after being fixed together, the problem of bad buckling effect of the medium container and the footrest is solved. Therefore, the invention has the advantages of convenient installation, favorable buckling effect and the like.

The invention discloses a workpiece fastening and clamping mechanism. The workpiece fastening and clamping mechanism comprises a working platform, a support frame and a hold-down component, wherein the support frame comprises uprights and a transverse support beam; the hold-down component comprises a lift cylinder, a connecting plate, pressure blocks I, a pressure block II and a buffer piece; thelift cylinder is fixed at the bottom of the transverse support beam; the connecting plate is fixed to the end part of a piston rod of the lift cylinder; the pressure blocks I, the pressure block II and the buffer piece are fixed at the bottom of the connecting plate; the two pressure blocks are symmetrically arranged on two sides of the buffer piece; two jacking blocks are arranged on the top surface of the working platform and respectively located right below the corresponding pressure blocks; an arc-shaped notch portion is formed in the lower end of each of the two pressure blocks I; a bulbI matched with the corresponding arc-shaped notch portion is arranged at the upper end of each the two jacking blocks; a bulb II is arranged at the lower end of the pressing block II; and the workingplatform is provided with a concave cavity matched with the bulb II. The workpiece fastening and clamping mechanism is simple in structure and convenient to use, realizes efficient and quick fasteningof a workpiece, and can achieve stamping operation, the production efficiency is improved, and the cost is lowered.

The invention discloses an adjustable clamping device for fastening workpieces, which includes a working platform, a support frame and a pressing assembly. The support frame includes a door-shaped bracket and a horizontal support beam. At the bottom of the middle of the support beam, the connecting plate is fixed on the end of the piston rod of the vertical cylinder. There are two pressing blocks I, which are respectively located at the two ends of the connecting plate. The buffer and the buffer are fixed on the bottom of the connecting plate. Two top blocks are arranged on the top surface of the working platform, and the two top blocks are respectively slidably arranged on the working platform along the transverse direction. The opposite sides of the lower ends of the two pressing blocks 1 are respectively provided with arc-shaped gaps. The upper ends of the two top blocks have ball heads I respectively, the lower ends of the pressure block II have ball heads II, and the top surface of the working platform is provided with concave cavities. The invention can not only realize high-efficiency and fast buckling of workpieces, but also can freely adjust according to the size of the workpieces, has a wide application range, can also realize punching operations, improve production efficiency and reduce costs.

The invention discloses a preset building wall connecting device and a using method thereof. The preset building wall connecting device comprises a first wall. A second wall is arranged on one side ofthe first wall. Second T-shaped sliding grooves are formed in the sides, adjacent to the second wall, of the first wall, and second T-shaped sliding blocks are slidably connected to the interiors ofthe two second T-shaped sliding grooves. A first connecting plate and a second connecting plate are welded to the adjacent sides of the two second T-shaped sliding blocks correspondingly, through cooperation of first U-shaped rods, second U-shaped rods and third U-shaped rods, the first connecting plate and the second connecting plate are connected in a fastened mode, and the stabilizing effect between the first wall body and the second wall body is improved; and the connection between vertical plates, a transverse plate, the first connecting plate and the second connecting plate is dispersedly reinforced through U-shaped plates, so that the fastening effect of the connection between the first wall and the second wall is further improved, the strength of the connection between the walls ishigh, the situation that the whole structure is unstable due to long-term use is avoided, and the use safety of the walls is improved.