80 results about "Nail structure" patented technology

The invention discloses a double-nail type nailing control device and a valve ring repair system, and relates to the technical field of medical instruments, and the double-nail type nailing control device comprises a mounting shell, a rotating structure and a nailing structure; the rotating structure is installed on the installation shell, the nailing structures are arranged on the two sides of the rotating structure correspondingly and axially penetrate through the installation shell, and the nailing structures are in transmission connection with the rotating structure; the double-nail type nailing control device is used for controlling the rotating structure to rotate so as to control the nailing structures on the two sides to axially move at the same time to be nailed into the valve ring tissue. According to the arrangement, the axial movement of the two nailing structures is controlled at the same time through the rotating structure, the operation that two anchors are screwed into the annulus tissue can be synchronously achieved through one-time operation, and the nailing efficiency is improved; and meanwhile, the multiple double-nail type nailing control devices are close to one another in the circumferential direction in the mode that a locking wire assembly in the annulus repair system pulls a locking wire from the two ends at the same time, and annulus tissue contraction is achieved.

The invention provides a tail pipe running-in pipe string which comprises a flow dividing mechanism which comprises a shell, a first sleeve arranged in the shell and a first sectioning ball seat arranged in the first sleeve and abutting against the shell, and a sitting and hanging driving mechanism which is arranged on the downstream of the flow dividing mechanism and comprises a second sleeve. The first sleeve is fixed to the inner wall of the first sleeve through a first pin, the second split ball seat is fixed to the inner wall of the second sleeve through a first pin, the pressure building ball can be thrown into the tail pipe tripping-in pipe string, and the first split ball seat is constructed to be capable of expanding under building pressure formed by the pressure building ball, so that the pressure building ball is allowed to move downwards through a flow dividing mechanism; and the first pin is constructed to be capable of being cut off under the further pressure building effect, so that the second sectioning ball seat is expanded, and the pressure building ball is allowed to pass through the seat hanging driving mechanism.

The invention discloses an anchoring enhancement type self-drilling grouting anchor rod with telescopic grouting holes and a using method of the anchoring enhancement type self-drilling grouting anchor rod, and relates to the technical field of roadway supporting, the anchoring enhancement type self-drilling grouting anchor rod comprises a hollow grouting anchor rod body, and a plurality of anchoring grouting assemblies are installed in the length direction of the grouting anchor rod body; each anchoring and grouting assembly comprises a plurality of guide holes formed in the circumferential direction of the grouting anchor rod, the guide holes penetrate through the side wall of the grouting anchor rod, grouting anchoring nails with the tips close to the outside are slidably installed in the guide holes, and the total length of the grouting anchoring nails is larger than the thickness of the side wall of the grouting anchor rod and smaller than the radius of the outer wall of the grouting anchor rod. A pushing ball is installed in an inner cavity of the grouting anchor rod in a rolling mode, and a gap is formed between the pushing ball and the wall of the inner cavity of the grouting anchor rod. Through the innovative telescopic grouting anchoring nail structure, the grouting anchoring nail is inserted into the broken surrounding rock of the roadway under the action of pressure during grouting, so that the friction force between the grouting anchor rod and the surrounding rock is remarkably enhanced, the anchoring effect is improved, and meanwhile, the risk that the grouting anchor rod pops up due to the fact that the grouting pressure is too large is effectively prevented.

The utility model relates to an FEBD seamless bridge deck connecting plate adopting a T-shaped shear nail structure, which comprises a semi-continuous UHPC bridge deck connecting plate arranged on the upper side of a telescopic gap at a beam end in a crossing manner, and a polyurethane pavement layer used for bearing vehicle load is paved on the upper side of the semi-continuous UHPC bridge deck connecting plate. T-shaped shear nails are arranged between the polyurethane pavement layer and the semi-continuous UHPC bridge floor connecting plate. According to the connecting plate, the seamless bridge floor can be realized, and the diseases such as pavement layer disengagement and hemming caused by large deformation difference when wheels pass through the expansion joint are obviously relieved; and in addition, the complex space stress state of the bridge deck can be better adapted, the normal use requirement of the bridge deck continuous structure is met, the construction period is effectively shortened, and the influence on traffic is small.

The utility model provides a positioning device for tower drum connection, which comprises an upper connecting piece and a lower connecting piece, and the upper connecting piece and the lower connecting piece are connected in a clamping way; the lower connecting piece comprises a lower shell sleeve and a pin structure arranged in the lower shell sleeve, the upper portion of the pin structure is an arc-shaped connector, and an annular groove is formed in the middle of the arc-shaped connector. The upper connecting piece comprises an upper shell sleeve, a plurality of circumferentially distributed hook teeth are arranged on the end face of the upper shell sleeve, and the hook teeth are matched with the annular groove; the upper shell is embedded in the through hole of the upper section of tower drum in a sleeved mode, the lower shell is embedded in the lower section of tower drum in a sleeved mode, the upper connecting piece and the lower connecting piece are self-locked through meshing of the hook teeth and the annular grooves, and the upper section of tower drum and the lower section of tower drum are positioned. The steel cone has good mechanical strength and stability, the positioning and connecting efficiency of the tower drum can be effectively improved in the actual construction process, and the problem that a connector is difficult to connect due to errors when the steel cone is used is solved.

The utility model discloses a fluororubber sealing rubber nail structure of a power battery. The fluororubber sealing rubber nail structure comprises a rubber nail and an aluminum nail, the plastic nail is inserted into the liquid injection hole, and the end part of the plastic nail is positioned in the countersunk groove of the liquid injection hole; the aluminum nail is welded and fixed in the countersunk groove of the liquid injection hole, the aluminum nail and the countersunk groove of the liquid injection hole clamp the end of the rubber nail, and the compression amount of the end of the rubber nail is 25%-40%. According to the fluororubber sealing glue nail structure of the power battery, double sealing of the glue nail and the aluminum nail has a better sealing effect, the compression amount of the glue nail is 25%-40%, the glue nail has a better sealing effect on a liquid injection hole, welding slag can be prevented from permeating into a battery cell when the aluminum nail is welded, and the sealing effect is good. And when the welding of the aluminum nail fails, the sealing can be ensured by the rubber nail.

The utility model discloses a sintering tray with a sintering nail structure, which comprises a sintering tray body, the top of the sintering tray body is provided with uniformly distributed insertion holes, two insertion rods are arranged above the sintering tray body, the bottom ends of the two insertion rods are respectively connected with the inner walls of the two insertion holes in a sliding manner, and the sintering nail structure is arranged on the sintering tray body. Sintering nail bodies are fixedly connected to the top ends of the two inserting rods correspondingly, and sliding cavities are formed in the tops of the two sintering nail bodies correspondingly. According to the sintering nail, the distance between every two adjacent sintering nail bodies can be finely adjusted, and then the inserting rods on the sintering nail bodies can be smoothly inserted into the inserting holes, so that the stability and efficiency of connection of the sintering nail bodies are improved; a user can fix the porcelain teeth on the mounting blocks at the tops of the sintering nail bodies without considering the distance between the two sintering nail bodies, so that the processing efficiency is effectively improved.

The utility model provides a cabinet door cable lock which comprises a lock shell, a conical guide groove is formed in the lock shell, the lock shell is provided with a cable channel which passes through the narrow end and the wide end of the conical guide groove and penetrates through the lock shell, an extrusion block is arranged in the conical guide groove, and the cable channel passes through the tooth surface of the extrusion block. One end of each extrusion block is provided with an elastic piece which enables the extrusion block to be tightly pressed towards the narrow end direction of the conical guide groove, the lock further comprises a driving block used for pushing the extrusion blocks to move towards the wide end direction of the conical guide groove, the number of the extrusion blocks is one or two symmetrically-arranged extrusion blocks, and the lock shell is provided with a first fixing piece; and a cable is further included, a second fixing piece is arranged at one end of the cable, the other end of the cable penetrates through the cable channel of the lock shell to be locked with the tooth face of the extrusion block in a matched mode, and when the driving block pushes the extrusion block to move towards the wide end of the conical guide groove, the tooth face is away from the cable to unlock the cable. The utility model has the advantages of being applicable to the cabinet body with nail structures on both sides of the cabinet door, and utilizing the nail structures on both sides of the cabinet body as attachment points to limit the opening of the cabinet door.

The utility model discloses a self-locking steel nail structure which comprises a steel nail body, an assembling groove is formed in the end face of the steel nail body, a side hole is formed in the side wall of the assembling groove, a movable rod is connected to the interior of the assembling groove in a sliding mode, a movable groove is formed in the surface of the movable rod, and the movable groove is connected with the side hole in a sliding mode. A locking block is jointly arranged in the movable groove and the side hole, and a driving hole is formed in the surface of one end of the locking block; by means of the movable rod, the assembling groove, the movable groove, the driving hole and the driving shaft, the locking block and the movable rod are movably assembled in the steel nail body, after the steel nail body is nailed into an object, the movable rod is knocked to push the driving shaft to move, the driving shaft is matched with the driving hole, and therefore the steel nail can be conveniently assembled. When the steel nail is used, one end of the locking block is pushed to slide out of the side hole, so that the end of the locking block is embedded into an object, the steel nail body is locked, the steel nail cannot be loosened, and the fixing firmness is improved.

The utility model relates to the technical field of noise reduction nails, in particular to a hollow shock absorption and noise reduction nail structure. The hollow shock absorption and noise reduction nail structure comprises a nail body, an inner cavity is formed in the nail body, and a nail cap is installed at the tail of the nail body in a sliding connection mode. An inner cavity formed in the nail body is filled with metal sand and is provided with a steel ball, and the metal sand is distributed in the inner cavity on the two sides of the steel ball; a protruding part is arranged at the tail of the nail body, and a plurality of outwards-inclined inserting cavities distributed in an annular mode are formed in the protruding part. A plurality of annularly-distributed inserting pieces are fixedly embedded in the inner wall of the nail cap. According to the hollow shock-absorbing and noise-reducing nail structure, the nail cap is knocked by a hammer, so that the inserting column slides along the inner cavity and tightly compresses the metal sand, and the metal sand can be plastically deformed to absorb vibration energy, so that the metal sand on the two sides of the steel ball can be deformed and the impact amplitude on the steel ball is reduced; therefore, internal stress generated when the nail body is impacted is effectively reduced, and the effect of reducing noise generated when the nail body is knocked by a hammer is achieved.

The present invention discloses a double-nail nailing control device and a valve ring repair system, which relates to the field of medical device technology. The scheme includes: a mounting shell, a rotating structure and a nailing structure; the rotating structure is mounted on the mounting shell, the nailing structures are respectively arranged on both sides of the rotating structure, and axially penetrate the mounting shell, and the nailing structure is transmission-connected to the rotating structure; the double-nail nailing control device is used to control the rotation of the rotating structure to simultaneously control the axial movement of the nailing structures on both sides to nail into the valve ring tissue. With such a configuration, the present invention controls the axial movement of the two nailing structures simultaneously through the rotating structure, and can synchronously realize the screwing of two anchor nails into the valve ring tissue in one operation, thereby improving the nailing efficiency; at the same time, by tightening the locking wire from both ends of the locking wire assembly in the valve ring repair system, multiple double-nail nailing control devices are made to approach each other in the circumferential direction, thereby realizing the contraction of the valve ring tissue.

This invention discloses a deformation analysis method for multi-bolt structural connections based on displacement field equivalence and machine learning, relating to the field of advanced aircraft connection technology, and aimed at solving the technical problems of high computational load and low efficiency in existing technologies. The method includes: establishing a refined model of a single bolt connection process; analyzing the deformation of the connected components during the connection process based on the refined model; obtaining the equivalent load based on the deformation displacement field; constructing a multi-bolt connection deformation analysis model and creating connection elements within the analysis model; simulating the overall component by inputting the equivalent load to obtain a sample dataset; training a machine learning model using the sample dataset and learning the mapping relationship between load boundary conditions and deformation response from the simulation samples; and predicting the deformation of the multi-bolt structural connection based on the trained machine learning model.

The utility model provides an anastomat which comprises a nailing structure, a plurality of fixing structures and a plurality of fixing structures, the nailing structure comprises a plurality of anastomosis nails, and the anastomosis nails are distributed in the target direction of the nailing structure; the cutting assembly comprises a cutting knife body and a cutting knife head, a blade part is arranged on the cutting knife head, and the cutting knife head is movably connected to the cutting knife body; the driving mechanism is connected with the cutting knife body; during cutting, the driving mechanism drives the cutting assembly to move in the target direction; and meanwhile, the cutting tool bit generates angular displacement in the target direction. The angular displacement of the cutting tool bit improves the cutting effect, the target cutting tissue is prevented from being torn under the pressure of the cutting tool bit, the damage to the blade part in the cutting process is reduced, and the safety in the operation process is improved.

The invention discloses a method suitable for fixing a high-temperature bar product identifier, and relates to the field, and the method comprises the following components: adjusting a label structure, optimizing a welding stud structure and an intelligent temperature control self-curing coating; by adjusting the position of the hanging hole of the label, optimizing the structure of the welding stud and combining the intelligent temperature control self-curing coating technology, the problem that the high-temperature bar identification is prone to falling off is solved from the two aspects of the physical structure and the material characteristics, the anti-tearing strength of the label is improved through the inward movement design of the hanging hole, and the service life of the label is prolonged. The welding stud structure is optimized, so that the risks of direct searing, deformation and falling of the sign caused by high temperature are reduced, the intelligent coating is automatically cured to form a high-strength wrapping layer in the cooling process, the sign falling rate is reduced from 63% to 1% or below through the synergistic effect of the welding stud structure, the intelligent coating and the high-strength wrapping layer, and by means of the improvement, the steel mixing accident caused by sign missing is avoided; repeated consumption of labels and welding nails and repair cost are reduced, and the probability that identification is difficult for downstream users is reduced.

The femoral multi-dimensional interlocking intramedullary nail structure comprises an aiming support, the top of the aiming support is connected to one end of a connecting handle, the other end of the connecting handle is connected to an intramedullary nail, and the two sides of the top of the aiming support are connected to one end of a left support and one end of a right support respectively; a left sleeve is inserted into the other end of the left support, a right sleeve is inserted into the other end of the right support, a left cross nail is connected to the end of the left sleeve, a right cross nail is connected to the end of the right sleeve, an aiming tube is inserted into the bottom of the aiming support, and a blade nail is connected to the end of the aiming tube. According to the internal fixation device, proximal femur fracture accompanied by split fracture of the outer side wall of greater trochanter of femur and small fracture blocks around the greater trochanter are held, so that firmer internal fixation is achieved, and internal fixation failures such as nail withdrawing and nail breaking caused by poor holding can be effectively prevented.

The utility model discloses a pivoting shaft nail structure for pressing and pivoting umbrella ribs, and belongs to the technical field of umbrellas. The umbrella comprises a main umbrella rib and a branch umbrella rib, the main umbrella rib and the branch umbrella rib are both provided with pivoting holes, a pivoting nail penetrates through the pivoting holes, the main umbrella rib and the branch umbrella rib are rotationally connected through the pivoting nail, the pivoting nail comprises a contact part serving as a rotating axis, one end of the contact part is provided with a limiting part, and the limiting part abuts against the branch umbrella rib or the main umbrella rib. According to the utility model, the elastic part on the pivoting nail is utilized, so that one end of the pivoting nail, which is provided with the clamping part, can sequentially penetrate through the pivoting holes in the main umbrella rib and the branch umbrella rib through deformation, and the contact part can be kept in the pivoting holes through the limiting of the clamping part and the limiting part; in this way, the main umbrella ribs and the branch umbrella ribs can be assembled more conveniently.

The utility model relates to the technical field of stationery, in particular to a flat staple stapler which comprises a base, a nailing structure, a pressing plate, a flat staple structure and a swing part. The nailing structure comprises a nail channel structure and a nail pressing structure hinged to the nail channel structure, the nail channel structure is provided with a nail groove and a nail outlet communicated with the nail groove, the nail pressing structure comprises a nail pressing plate, and the nail pressing plate is used for pressing staples out of the nail outlet; the pressing plate is hinged to the base and used for driving the nail pressing structure to press nails. The flat nail structure is arranged on the base and has an initial form, a paper penetrating form and a flat nail form; the swing part is provided with a connecting end and a swing end, the connecting end is hinged to the nail pressing structure, and the swing end is used for driving the flat nail structure to be switched from the paper penetrating state to the flat nail state; the swing piece further comprises an abutting portion, and the abutting portion is matched with the nail channel structure in an abutting mode. According to the flat staple stapler, the structure of the swinging part is changed, so that the swinging part stably drives the flat staple structure, and the file stapling smoothness is improved.

The utility model discloses a sleeve type bone nail structure which comprises a guide part and a bone nail part, the guide part comprises an upper sleeve and a lower sleeve, and the upper sleeve and the lower sleeve are connected through a connecting piece; the first connecting assembly is arranged between the upper sleeve and the connecting piece; the second connecting assembly is arranged between the connecting piece and the lower sleeve; the top end of the upper sleeve is connected with a handheld positioning end used for determining the direction. The bottom end of the lower sleeve is connected with an extension sleeve for connection and fixation; the bone nail part comprises a bone nail rod and an expansion arm, and the bone nail rod is connected with the expansion arm through an adjusting part; and the expansion arm is movably connected with a bone plate positioning end through a pivoting shaft. The sleeve positioning structure is designed, the nail holder and the bone nail are integrated, adjustment is convenient, the occupied space size is effectively reduced, good stability is achieved, the position of a bone plate can be accurately positioned, and practicability is high.

The utility model relates to a coil nail structure for stably installing a metal wire, which comprises a nail body structure and a metal wire connecting wire group, and the nail body structure comprises a nail cap, a nail body structure and a nail point. The nail body structure comprises an upper extending section connected with the nail cap, a nail body section arranged on the lower portion of the upper extending section and a nail point connecting section arranged on the lower portion of the nail body section, and the upper end and the lower end of the nail body section are each provided with a connecting wire limiting installation groove set. And the connecting wire limiting mounting groove at the inner end of each connecting wire limiting mounting groove group is larger than the connecting wire limiting mounting groove at the upper part. According to the coil nail structure, the upper end and the lower end of the nail body section at the upper part of the nail body are respectively provided with the connecting wire limiting mounting groove group, so that the problem of looseness during mounting of the nail body and a metal wire is avoided, and the phenomenon of dislocation after mounting of the nail body is avoided. Meanwhile, the upper end connecting body is arranged to ensure that the nail can be conveniently taken out during nail pulling, and a pneumatic contact point is additionally arranged at the upper end of the nail cap body to ensure that the nail body structure is smoothly nailed into an object during pneumatic operation.

The utility model relates to the technical field of climbing frames for planting radix tinosporae, in particular to a climbing frame for planting radix tinosporae, which comprises two supporting arch frames, and is characterized in that a climbing frame structure is arranged between the two supporting arch frames and comprises a supporting curved bar, a plurality of fixing ring frames are arranged below the supporting curved bar, and the fixing ring frames are arranged on the supporting curved bar. A limiting ring groove is formed in the lower side of the fixing ring frame, a first connecting ring is slidably arranged in the limiting ring groove in a limiting mode, a second connecting ring is arranged below the second connecting ring, two screw rods are fixed between the first connecting ring and the second connecting ring, a clamping structure is arranged between the climbing frame structure and the supporting curved rod, a supporting plate is fixed to the bottom of the supporting arch frame, and a round hole is formed in the upper side of the supporting plate. And a fixing nail structure is rotationally arranged in the circular hole. The traction rope structure solves the problems that an existing traction rope structure for radix tinosporae planting is waste, the length is fixed, the traction rope structure cannot adapt to radix tinosporae plants with different heights, and a traction rope supporting frame body is troublesome to assemble and disassemble.

The invention discloses a platform for propelling a blasting nail to attach a load, and belongs to the technical field of unmanned equipment deployment. Comprising a propelling part, a blasting nail structure and a load platform, the propelling part is used for propelling the device to move in one direction, the blasting nail structure is arranged at the front end of the propelling part in the advancing direction, the blasting nail structure can be fixed to the outer vertical face of a vertical object in a puncturing mode, and the blasting nail structure can act on the load platform in the direction opposite to the advancing direction. The whole device is pushed to the outer vertical face of a target at a high speed through thrust generated by the propelling part, the explosion nail structure punctures and is fixed to the surface of a vertical object at the moment of impact, and meanwhile the load platform is stably deployed at the target position through counter-acting force. The problems that a traditional attachment mode is high in attachment failure rate and prone to falling off on complex surfaces such as rough surfaces, nonmetal surfaces and high hardness surfaces are solved.

The utility model relates to the technical field of stage lamp equipment, in particular to a silica gel nail structure which is made of silica gel and used for connecting a fan and a fixing plate of a fan, and when a nail tail is subjected to acting force towards a nail head, the acting force is transmitted to the nail head through a connecting rod. Meanwhile, the liquid in the first cavity of the nail tail moves towards the third cavity of the nail head through the second cavity of the connecting rod to force the nail head to deform, that is, along the height direction of the silica gel nail structure, the section of the nail head is reduced to pass through the mounting groove of the fan and the through hole of the fixing plate, the nail head does not need to be pulled, and after the acting force is relieved, the nail head recovers to the original state; the projection area of the nail tail and the projection area of the nail head are larger than the projection area of the connecting rod, so that the nail tail is located on the side, away from the fixing plate, of the fan, the nail head is located on the side, away from the fan, of the fixing plate, and the connecting rod is located in the mounting groove and the through hole. And the disassembly is simple.

The utility model discloses a bead nailing structure which comprises a bead punching mechanism and a nail punching mechanism, the bead punching mechanism pushes beads to move downwards, and the nail punching mechanism pushes nails to move upwards; the bead punching mechanism comprises a first motor, a first transmission mechanism, a first push rod and a bead punching seat, the first transmission mechanism comprises a first transmission shaft, the first motor drives the first transmission shaft to rotate, and the first transmission shaft is connected with the first push rod through a first cam or a first crank connecting rod; the nail punching mechanism comprises a second motor, a second transmission mechanism, a second push rod and a nail punching rod, the second transmission mechanism comprises a second transmission shaft, the second motor drives the second transmission shaft to rotate, and the second transmission shaft is connected with the second push rod through a second cam or a second crank connecting rod; the electric beading machine comprises the beading mechanism. The beading machine has the beneficial effects that air cylinder driving is not used any more, driving is achieved through the motor, the motor has the advantages of being high in precision, good in stability and convenient to adjust, the requirements for impact force and stability during beading can be met, and the beading error rate is low.

The present invention relates to a coil nail gun, comprising a nail guide structure fixedly connected to a nail gun body and used for guiding nails to be driven, and a nail storage structure capable of storing coil nails; further comprising a nail feeding mechanism fixedly connected between the nail guide structure and the nail storage structure, the nail feeding mechanism comprising a nail feeding plate for guiding and limiting the moving direction of the coil nails, a pushing structure for pushing the coil nails toward the nail guide structure is provided on one side of the nail feeding plate, and a non-return assembly is provided on both sides of the pushing structure in the same direction to prevent the coil nails from moving back to the nail storage structure; a clamping structure capable of pressing one end of the nail storage structure is provided above the nail feeding mechanism, and the clamping structure is also provided with a lever capable of moving the pushing structure and the non-return assembly away from the nails. The present invention can smoothly push the nails bonded in a row by a flexible belt into the nail guide structure, avoid the nail jamming phenomenon when driving the nails, and also improve the qualified rate of the product.

The present invention provides an intramedullary nail structure comprising a first fixing nail, a second fixing nail, and a first flexible connector. The first end of the first flexible connector is disposed within and connected to the first fixing nail, and the second end of the first flexible connector is disposed within and connected to the second fixing nail. The first and second fixing nails are movable relative to each other via the first flexible connector. The technical solution provided in this application can address the prior art issue of joint immobility after fusion therapy.

The utility model relates to a sealing nail structure and a battery, and relates to the technical field of new energy batteries. The utility model provides a sealing nail structure which is arranged in a liquid injection hole of a top cover, and the liquid injection hole is communicated with a first through hole and a second through hole. The sealing nail structure comprises a sealing nail and a sealing rubber nail, the sealing nail is arranged in the first through hole, and the sealing rubber nail is arranged in the second through hole; a protrusion is arranged at the bottom of the sealing nail and abuts against the top face of the sealing rubber nail. The bottom of the sealing nail is provided with the protrusion, the protrusion abuts against the top face of the sealing rubber nail, and the sealing rubber nail is ejected out through the protrusion at the bottom of the sealing nail, so that whether the situation that the sealing performance does not conform to a standard product due to poor welding exists or not can be checked in helium detection, and the subsequent production problem caused by missed welding is avoided.

The utility model relates to the technical field of pins, and discloses a pin structure convenient to pull out, which comprises a pin, a sliding groove is arranged on the inner wall of the pin, a circular groove is arranged on the inner wall of the pin, a pin pulling mechanism convenient to pull a pin is arranged in the pin, the pin pulling mechanism comprises a pull rod, and the pull rod is connected with the sliding groove and the circular groove. According to the pin structure convenient to pull out, the grooves and the protruding strips are kept in a coincident state by rotating the rotating disc, at the moment, the pull rods and the pull blocks can be pushed out of the pins through cooperation of the springs and the limiting discs, and therefore the pin structure convenient to pull out can be conveniently pulled out. The protruding pull block can be used as an acting point, at the moment, the pull block is pulled to be matched with the pull rod and the limiting disc to apply pulling force to the pin, and therefore the installed pin can be conveniently pulled out, the pin can be conveniently pulled out without tools, and use is more convenient.

The invention discloses an anti-skid nail structure and an outdoor product, and relates to the technical field of outdoor product accessories. The anti-skid nail structure comprises a mounting part and a nail body part, and the first end of the mounting part is used for being connected with the outdoor goods; the nail body part is detachably connected with the second end of the mounting part, and a diamond coating is arranged on the surface of the nail body part. According to the technical scheme, the abrasion resistance of the anti-skid nail structure can be improved, and therefore the service life of the anti-skid nail structure is guaranteed.

The invention discloses a bead nailing structure which comprises a bead punching mechanism and a nail punching mechanism, the bead punching mechanism pushes beads to move downwards, and the nail punching mechanism pushes nails to move upwards; the bead punching mechanism comprises a first motor, a first transmission mechanism, a first push rod and a bead punching seat, the first transmission mechanism comprises a first transmission shaft, the first motor drives the first transmission shaft to rotate, and the first transmission shaft is connected with the first push rod through a first cam or a first crank connecting rod; the nail punching mechanism comprises a second motor, a second transmission mechanism, a second push rod and a nail punching rod, the second transmission mechanism comprises a second transmission shaft, the second motor drives the second transmission shaft to rotate, and the second transmission shaft is connected with the second push rod through a second cam or a second crank connecting rod; the electric beading machine comprises the beading mechanism. The beading machine has the beneficial effects that air cylinder driving is not used any more, driving is achieved through the motor, the motor has the advantages of being high in precision, good in stability and convenient to adjust, the requirements for impact force and stability during beading can be met, and the beading error rate is low.