CN108953335B - Open type pin - Google Patents
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- CN108953335B CN108953335B CN201811123535.2A CN201811123535A CN108953335B CN 108953335 B CN108953335 B CN 108953335B CN 201811123535 A CN201811123535 A CN 201811123535A CN 108953335 B CN108953335 B CN 108953335B
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- pin
- stop
- cylinder
- pin body
- stop pin
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- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 11
- 230000000670 limiting effect Effects 0.000 claims description 20
- 238000005096 rolling process Methods 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 5
- 239000011651 chromium Substances 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 239000011572 manganese Substances 0.000 claims description 4
- 239000010936 titanium Substances 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000012535 impurity Substances 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 238000010791 quenching Methods 0.000 claims description 2
- 230000000171 quenching effect Effects 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052717 sulfur Inorganic materials 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- 238000005496 tempering Methods 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 2
- 230000009471 action Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 230000001681 protective effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/12—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes
- F16B21/125—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with locking-pins or split-pins thrust into holes radially resilient or with a snap-action member, e.g. elastic tooth, pawl with spring, resilient coil or wire
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Buckles (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention relates to the technical field of fastener structures, and provides an open type pin which comprises a pin body, a cylinder and a stop pin, wherein the pin body is arranged in a hollow mode, the stop pin is positioned in the pin body, the cylinder is installed in the pin body in a sliding mode, a non-return mechanism is further arranged between the cylinder and the pin body, one end of the cylinder extends to the outer side of the pin body to form a pressing portion, the other end of the cylinder extends to the inner side of the pin body and is in contact with the stop pin, first openings are axially and symmetrically formed in one side face of the pin body, close to the stop pin, and when the stop pin is subjected to external force, two ends of the stop pin penetrate to the outer side. The invention solves the technical problems that the pin opening foot needs to be manually opened after the existing cotter pin is inserted into a fastener, the use is inconvenient, and the working efficiency is low.
Description
Technical Field
The invention relates to the technical field of fastener structures, in particular to an open type pin.
Background
Pins are connecting elements for positioning and fastening fasteners, and have a very important role in the connection of mechanical parts. The pins can be divided into the following parts according to different shapes and functions: cotter pins, taper pins, cylindrical pins, slotted pins, etc. Among them, cotter pins are widely used in connection of daily fasteners, and for example, accessory connection of a running part of a bogie, a wire suspension clamp of a power transmission line, and the like are widely used in cotter pins.
Taking the transmission line as an example, the split pin can prevent the fastener from falling off and can be used on the transmission line in a large range. However, the cotter pin has the following defects in the using process: (1) in the using process of the cotter, the cotter pin needs to be inserted firstly, and then the cotter pin is manually broken, so that the fastening effect can be achieved, the cotter pin is inconvenient to use, and the working efficiency is low; (2) in the process of assembling the power transmission line, due to the large using amount, the problem of missing installation or no open feet easily occurs, and great hidden danger is brought to the safe operation of the power transmission line.
Therefore, the development of the open type pin has urgent research value and also has good economic benefit and industrial application potential, which is the basis and the impetus for the completion of the invention.
Disclosure of Invention
The present inventors have conducted intensive studies to overcome the above-identified drawbacks of the prior art, and as a result, have completed the present invention after having made a great deal of creative efforts.
Specifically, the technical problems to be solved by the present invention are: the utility model provides an open type pin to solve current split pin after inserting the fastener, need manually break the pin and break off with the fingers and thumb, it is inconvenient to use, technical problem that work efficiency is low.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides an open type pin, includes pin body, cylinder and backing pin, the inside cavity of pin body sets up, the backing pin is located inside the pin body, cylinder slidable mounting in inside the pin body, the cylinder with still be equipped with non-return mechanism between the pin body, the one end of cylinder extends to the pin body outside forms presses the splenium, and the other end extends to inside the pin body and with the backing pin contacts, the pin body is close to the one end side axis symmetry of backing pin is equipped with first opening, works as when the backing pin receives external force, the both ends of backing pin are followed first opening wears to the pin body outside.
As an improved scheme, the pin body is composed of a first plate body and a second plate body, and a plurality of stop blocks are further arranged at one end, far away from the stop pin, of the pin body.
As an improved scheme, the connection mode of the first plate body and the second plate body is welding.
As an improved scheme, a first cavity and a second cavity are arranged inside the pin body;
two grooves are formed in the first cavity and are symmetrically distributed along the axis of the pin body; the second cavity is internally provided with a limiting ring, the limiting ring is in clearance fit with the second cavity and is in sliding fit with the cylinder, two second openings are symmetrically arranged on the limiting ring in an axial line mode, and the two second openings are in sliding fit with the stop pin.
As an improved scheme, the non-return mechanisms are symmetrically distributed in two groups by the axis of the cylinder, each non-return mechanism comprises a boss, a stop block and a spring, the bosses are fixedly arranged on the cylinder, the stop blocks are slidably arranged in the grooves, and the springs are compressed between the grooves and the stop blocks.
As an improved scheme, the stop pin is of an inverted V-shaped structure, the stop pin comprises a tip and two bottoms, two stop rings are symmetrically arranged at the center of the tip of the stop pin, the length of the arc between the two stop rings is equal to the diameter of the limiting ring, two rolling rings are arranged at the two bottoms of the stop pin, and the rolling rings are slidably mounted with the first opening of the pin body.
As an improved scheme, the cylinder is in the one end of pressing the splenium is equipped with a round platform, the diameter of round platform with the diameter of pin body equals, the cylinder with the one end terminal surface that the backing pin contacted is equipped with the arc recess, the cambered surface of arc recess with the cambered surface of the point portion of backing pin is corresponding, the cylinder with the one end that the backing pin contacted still be equipped with keep away the position groove that the fender ring corresponds the setting.
As an improved scheme, the first opening of the pin body is in an inverted T-shaped structure type, and the first opening of the pin body is in clearance fit with the stop pin.
Through the technical scheme, the technical problems that after the existing cotter pin is inserted into the fastener, the pin needs to be manually opened, the use is inconvenient, and the working efficiency is low are solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic left side view of FIG. 1;
FIG. 3 is a schematic view of the pin in the open position;
FIG. 4 is a schematic left side view of FIG. 3;
FIG. 5 is a schematic view of the structure of a cylinder;
FIG. 6 is a schematic view of the catch pin;
FIG. 7 is a schematic front view of the pin body;
FIG. 8 is a left side schematic view of the pin body;
FIG. 9 is a schematic top view of the pin body;
FIG. 10 is a schematic front view of a stop collar;
FIG. 11 is a left side view of the stop collar;
FIG. 12 is a schematic representation of the operation of the present invention;
wherein each numerical designation refers to a particular meaning, element, and/or component, respectively, as follows in the figures.
In the figure: 1. the pin comprises a pin body, 101, a first plate body, 102, a second plate body, 103, a stop block, 104, a first cavity, 105, a second cavity, 106, a groove, 107, a first opening, 2, a cylinder, 201, a circular table, 202, an arc-shaped groove, 203, a spacing groove, 3, a stop pin, 301, a tip of the stop pin, 302, two bottoms of the stop pin, 303, a stop ring, 304, a rolling ring, 4, a non-return mechanism, 401, a boss, 402, a stop block, 403, a spring, 5, a limiting ring, 501, a second opening, 6 and a fastening piece.
Detailed Description
The invention is further illustrated by the following specific examples. The use and purpose of these exemplary embodiments are to illustrate the present invention, not to limit the actual scope of the present invention in any way, and not to limit the scope of the present invention in any way.
As shown in fig. 1, 2, 3 and 4, the automatic opening pin includes a pin body 1, a cylinder 2 and a stop pin 3, the pin body 1 is hollow, the stop pin 3 is located inside the pin body 1, the cylinder 2 is slidably mounted inside the pin body 1, a non-return mechanism 4 is further disposed between the cylinder 2 and the pin body 1, one end of the cylinder 2 extends to the outside of the pin body 1 to form a pressing portion, the other end extends to the inside of the pin body 1 and contacts with the stop pin 3, first openings 107 are symmetrically disposed on the side surface of one end of the pin body 1 close to the stop pin 3, and when the stop pin 3 receives an external force, the two ends of the stop pin 3 penetrate to the outside of the pin body 1 along the first openings 107 of the pin body 1.
In this embodiment, as shown in fig. 1 and fig. 2, the pin body 1 is hollow, the stop pin 3 is located in the pin body 1, the cylinder 2 can slide in the pin body 1, one end of the cylinder 2 extends out of the pin body 1, and the other end extends to the position of the stop pin 3, the pin body 1 is symmetrically provided with the first opening 107 at the position axis of the stop pin 3, the first opening 107 can be directly processed by wire cutting, when the pressing portion of the cylinder 2 is pressed, the cylinder 2 moves downwards and applies force to the stop pin 3, so that the two bottoms 302 of the stop pin penetrate from the two first openings 107 of the pin body 1 to the outside of the pin body 1, thereby realizing automatic pin opening and preventing the pin from falling off, as shown in fig. 3 and fig. 4, the non-return mechanism 4 is used for clamping the cylinder 2 at a fixed position, and simultaneously, pressing the stop pin 3, so that the stop pin 3 cannot move freely, when the pin is installed, only the cylinder 2 needs to be pressed forcibly, the stop pin 3 can be extended out of the pin body 1, so that the two bottoms 302 of the stop pin are automatically opened, and the technical problems that the existing split pin needs to be manually opened after a fastener is inserted, the use is inconvenient, and the working efficiency is low are solved.
In this embodiment, as shown in fig. 6, the stop pin 3 is made of spring steel, and the spring steel contains carbon C: 0.53 to 0.59% by weight, silicon Si: 2.5 to 3.0 wt%, manganese Mn: 0.75 to 0.95% by weight, phosphorus P: 0.000 to 0.010 wt%, sulfur S: 0.000 to 0.010 wt%, chromium Cr: 0.60 to 0.80 wt%, copper Cu: 0.00 to 0.25 wt.%, vanadium V: 0.15 to 0.25 wt%, titanium Ti: 0.020 to 0.030 wt%, molybdenum Mo: 0.05 to 0.10 wt%, nickel Ni: 0.21 to 0.25% by weight, with the balance being Fe and unavoidable impurities to make up 100%, and by quenching and tempering, the spring steel is mainly elastic and sufficiently ductile to enable the two bases 302 of the stop pin to extend well outside the pin body 1 when subjected to external forces from the cylinder 2, so that the pin can be free.
In this embodiment, as shown in fig. 7, 8 and 9, the pin body 1 is composed of a first plate 101 and a second plate 102, a plurality of stoppers 103 are further disposed at one end of the pin body 1 away from the stop pin 3, the first plate 101 and the second plate 102 are connected by welding, when in use, the pin body 1 is made into a split structure, as shown in fig. 9, the installation of each component in the pin body 1 is more convenient, the connection of the pin body 1 is more firm by welding, the end of the pin body 1 away from the stop pin 3 is provided with the plurality of stoppers 103, in this embodiment, the number axes of the stoppers 103 are symmetrically provided with 2 sets, when in use, the stoppers 103 can be tightly attached to the surface of the fastener 6, so that only the inner cylinder 2 moves when the pin is under pressure, the pin body 1 cannot move, and two bottoms 302 of the stop pin are more conveniently pressed to the outer side of the pin body 1, the foot opening is realized without manual opening.
In this embodiment, as shown in fig. 7, 10 and 11, a first cavity 104 and a second cavity 105 are provided inside the pin body 1;
two grooves 106 are arranged in the first cavity 104, and the two grooves 106 are symmetrically distributed on the axis of the pin body 1; the limiting ring 5 is arranged in the second cavity 105, the limiting ring 5 is in clearance fit with the second cavity 105 and is in sliding fit with the cylinder 2, two second openings 501 are symmetrically arranged on the axis of the limiting ring 5, the two second openings 501 are in sliding fit with the stop pin 3, when the pin is used, the movement range of the cylinder 2 can be limited by the arranged first cavity 104, the cylinder 2 cannot be separated from the pin body 1, the groove 106 is arranged in the first cavity 104, the groove 106 is symmetrically arranged on the axis of the pin body 1 and is symmetrically provided with balanced stress, the groove 106 facilitates installation of the stop block 402 in the non-return mechanism 4, the cylinder 2 can be clamped when being pressed down through the non-return mechanism 4, and the cylinder 2 is prevented from moving; the limiting ring 5 is arranged in the second cavity 105, as shown in fig. 10 and 11, the limiting ring 5 is in clearance fit with the second cavity 105, so that the limiting ring 5 can be placed in the second cavity 105, and the limiting ring 5 is in sliding fit with the cylinder 2, so that the cylinder 5 can freely slide under the action of external force, and large resistance cannot be generated, two second openings 501 are symmetrically arranged on the axis of the limiting ring 5, the second openings 501 are in sliding fit with the stop pins 3, so that the stop pins 3 cannot randomly shake in the second cavity 105, meanwhile, the stop pins 3 can move along the direction of the second openings 501 by the second openings 501 when the external force is applied, the positions of the second openings 501 of the limiting ring 5 are consistent with the positions of the first openings 107 of the pin body 1, and two bottoms 302 of the stop pins can penetrate to the outer side of the pin body 1 through the second openings 501 and the first openings 107 when the external force is applied.
In this embodiment, as shown in fig. 1 and 3, two sets of backstop mechanisms 4 are symmetrically distributed along the axis of the cylinder 2, each backstop mechanism 4 includes a boss 401, a stop block 402 and a spring 403, the boss 401 is fixedly mounted on the cylinder 2, as shown in fig. 5, the stop block 402 is slidably mounted in the groove 106, the spring 403 is compressed between the groove 106 and the stop block 402, when in use, the two sets of backstop mechanisms 4 symmetrically distributed along the axis enable the cylinder 2 to be clamped at one position more firmly and to be stressed more uniformly, the stop block 402 is placed in the groove 106 of the pin body 1, the spring 403 is placed between the stop block 402 and the groove 106, the stop block 402 can be slidably contracted in the groove 106 when being subjected to an external force, the boss 401 is fixed on the cylinder 2, the contact position between the boss 401 and the stop block 402 is chamfered, so that the boss 401 on the cylinder 2 can be contracted in the groove 106 by pressing the inclined plane in the downward moving process, when the boss 401 moves below the stop 402, the stop 402 ejects the catching boss 401 from the groove 106 under the action of the spring 403, so that the stop pin 3 is in an extended open leg state, and the pin is prevented from falling.
In this embodiment, as shown in fig. 1, 3 and 6, the stop pin 3 is of an inverted "V" structure, the stop pin 3 includes a tip portion and two bottom portions, the tip portion 301 of the stop pin is centrally and symmetrically provided with two stop rings 303, the arc-shaped extended length between the two stop rings 303 is equal to the diameter of the limit ring 5, the two bottom portions 302 of the stop pin are both provided with a rolling ring 304, the rolling ring 304 is slidably mounted with the first opening 107 of the pin body 1, when in use, the stop pin 3 is of an inverted "V" structure, the stop pin 3 is integrally formed, as shown in fig. 6, when the stop pin 3 is acted by the cylinder 2, the two bottom portions 302 of the stop pin are forced to extend and extend to the outside of the pin body 1 through the limit ring 5 and the first opening 107 on the pin body 1, so that the pin automatically opens, the tip portion 301 of the stop pin is centrally and symmetrically and fixedly welded with the two stop rings 303, the arc-shaped extended length between the two stop rings 303 is equal to the diameter of the limit ring, the diameter ratio of the baffle ring 303 is larger than the second opening 501 arranged on the limit ring 5, so that the baffle pin 3 is under the action force of the cylinder 2, because the limit ring 5 and the baffle ring 303 block the movement of the baffle pin 3 can be limited in time, the phenomenon that the force is uneven and the side is inclined to one side is avoided, in addition, the baffle ring 303 can also ensure that the baffle pin 3 still cannot fall off from the first opening 107 and the second opening 501 even under the broken condition, the limiting effect can still be achieved, the pin is further prevented from falling off, two bottoms 302 of the baffle pin are provided with the rolling ring 304, the rolling ring 304 and the baffle pin 3 are of an integrated structure, the rolling ring 304 is in sliding fit with the first opening 107 of the pin body 1, and the baffle pin 3 can extend to the outside of the pin body 1 more smoothly when being under the action force.
In this embodiment, as shown in fig. 5, a circular truncated cone 201 is disposed at one end of a pressing portion of a cylinder 2, the diameter of the circular truncated cone 201 is equal to the diameter of a pin body 1, an arc groove 202 is disposed at an end surface of the cylinder 2 contacting with a stopper pin 3, an arc surface of the arc groove 202 corresponds to an arc surface of a tip portion 301 of the stopper pin, a clearance groove 203 corresponding to a stopper ring 303 is further disposed at one end of the cylinder 2 contacting with the stopper pin 3, when in use, the circular truncated cone 201 is disposed at one end of the pressing portion of the cylinder 2, so as to increase an action area of the pressing portion and save more labor when the pin is in use, the arc groove 202 is disposed at an end surface of the cylinder 2 contacting with the stopper pin 3, the arc surface of the arc groove 202 corresponds to the arc surface of the tip portion 301 of the stopper pin, and the arc groove 202 enables an action force of the cylinder 2 to be uniformly, the avoiding groove 203 corresponding to the blocking ring 303 is formed in the cylinder 2, so that the blocking ring 303 and the cylinder 2 are prevented from interfering to block the movement of the blocking pin 3 in the process that the blocking pin 3 is stressed to move.
In this embodiment, as shown in fig. 7, 8 and 11, the first opening 107 of the pin body 1 is in an inverted "T" shape, the first opening 107 of the pin body 1 is in clearance fit with the stop pin 3, when in use, the first opening 107 of the pin body 1 is in an inverted "T" shape, as shown in fig. 8, the second opening 501 of the limit ring 5 is also in an inverted "T" shape, as shown in fig. 11, the second opening 501 of the inverted "T" shape makes the stop pin 3 more easily get stuck in two notches perpendicular to the acting force when receiving the acting force of the cylinder 2, so as to perform the functions of limiting and fixing.
For ease of understanding, the working of the embodiments of the present invention is given below:
when the pin is in use, as shown in connection with figure 12, the pin body 1 is first inserted into the through bore of the fastener 6, at this time, the stopper 103 arranged on the pin body 1 is close to one end surface of the fastener 6, the other end of the pin body 1 passes through the fastener 6 and reaches the other end of the fastener 6, and the first opening 107 of the pin body 1 is exposed to the outside of the fastener 6, as shown in figure 9, when the cylinder 2 on the pin is pressed hard, the cylinder 2 is moved downwards, simultaneously, the cylinder 2 presses the stop pin 3, so that two bottoms 302 of the stop pin penetrate out of the limiting ring 5 and the first opening 107 of the pin body 1, the pin automatically starts, in the process that the cylinder 2 moves downwards under the action of external force, the backstop mechanism 4 between the cylinder 2 and the pin body 1 can clamp the cylinder 2, so that the pin is always kept in a fastened state and cannot fall off, and the fastening effect of the pin is realized.
In conclusion, the pin can be automatically opened through the embodiment of the invention, manual opening is not needed, and the technical problems that the pin opening is required to be manually opened after the fastener 6 is inserted into the existing cotter pin, the use is inconvenient, and the working efficiency is low are solved.
It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should also be understood that various alterations, modifications and/or variations can be made to the present invention by those skilled in the art after reading the technical content of the present invention, and all such equivalents fall within the protective scope defined by the claims of the present application.
Claims (7)
1. An open type pin, which is characterized in that: the pin comprises a pin body, a cylinder and a stop pin, wherein the pin body is hollow, the stop pin is positioned in the pin body, the cylinder is installed in the pin body in a sliding manner, a non-return mechanism is further arranged between the cylinder and the pin body, one end of the cylinder extends to the outer side of the pin body to form a pressing part, the other end of the cylinder extends to the inner side of the pin body and is in contact with the stop pin, first openings are symmetrically formed in the side surface of one end, close to the stop pin, of the pin body, and when the stop pin is subjected to external force, two ends of the stop pin penetrate to the outer side of the pin body along the first openings;
the stop pin is of an inverted V-shaped structure and comprises a tip part and two bottom parts, two stop rings are symmetrically arranged at the center of the tip part of the stop pin, rolling rings are arranged at the two bottom parts of the stop pin, and the rolling rings are slidably mounted with the first opening of the pin body;
the stop pin is made of spring steel, and the components of the spring steel comprise carbon C: 0.53 to 0.59% by weight, silicon Si: 2.5 to 3.0 wt%, manganese Mn: 0.75 to 0.95% by weight, phosphorus P: 0.000 to 0.010 wt%, sulfur S: 0.000 to 0.010 wt%, chromium Cr: 0.60 to 0.80 wt%, copper Cu: 0.00 to 0.25 wt.%, vanadium V: 0.15 to 0.25 wt%, titanium Ti: 0.020 to 0.030 wt%, molybdenum Mo: 0.05 to 0.10 wt%, nickel Ni: 0.21 to 0.25 wt%, and the balance of Fe and inevitable impurities to make up 100%, and quenching and tempering, when subjected to an external force of the cylinder, the two bottom portions of the stopper pin are spread and protruded to the outside of the pin body.
2. The split pin of claim 1, wherein: the pin body comprises a first plate body and a second plate body, and a plurality of stop blocks are further arranged at one end, far away from the stop pin, of the pin body.
3. The split pin of claim 2, wherein: the first plate body and the second plate body are connected in a welding mode.
4. The split pin of claim 1, wherein: a first cavity and a second cavity are arranged in the pin body;
two grooves are formed in the first cavity and are symmetrically distributed along the axis of the pin body; the second cavity is internally provided with a limiting ring, the limiting ring is in clearance fit with the second cavity and is in sliding fit with the cylinder, two second openings are symmetrically arranged on the limiting ring in an axial line mode, and the two second openings are in sliding fit with the stop pin.
5. The split pin of claim 4, wherein: the check mechanism is symmetrically distributed with two groups by the axis of the cylinder, the check mechanism comprises a boss, a stop block and a spring, the boss is fixedly arranged on the cylinder, the stop block is slidably arranged in the groove, and the spring is compressed between the groove and the stop block.
6. The split pin of claim 1, wherein: the cylinder is in the one end of pressing the splenium is equipped with a round platform, the diameter of round platform with the diameter of pin body equals, the cylinder with the one end terminal surface that the backing pin contacted is equipped with the arc recess, the cambered surface of arc recess with the cambered surface of the point portion of backing pin is corresponding, the cylinder with the one end that the backing pin contacted still be equipped with keep away the position groove that the fender ring corresponds the setting.
7. The split pin of claim 1, wherein: the first opening of the pin body is of an inverted T-shaped structure type, and the first opening of the pin body is in clearance fit with the stop pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123535.2A CN108953335B (en) | 2018-09-26 | 2018-09-26 | Open type pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811123535.2A CN108953335B (en) | 2018-09-26 | 2018-09-26 | Open type pin |
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| CN108953335A CN108953335A (en) | 2018-12-07 |
| CN108953335B true CN108953335B (en) | 2020-10-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109936942A (en) * | 2019-01-11 | 2019-06-25 | 万向一二三股份公司 | A kind of compact light type battery management system shell |
| CN112303093B (en) * | 2020-11-03 | 2022-05-24 | 广东电网有限责任公司 | Cotter bolt and coupling assembling |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201475135U (en) * | 2009-04-30 | 2010-05-19 | 陈文浩 | Nut anti-off structure |
| CN102619836A (en) * | 2012-03-29 | 2012-08-01 | 苏州新凌电炉有限公司 | Locating pin |
| US8987612B2 (en) * | 2012-11-26 | 2015-03-24 | The Boeing Company | Bushings, apparatuses including bushings, and associated methods |
| CN204344620U (en) * | 2014-12-23 | 2015-05-20 | 温州市胜隆标准件制造有限公司 | Theftproof self-locking type tapping screw |
| CN105402230A (en) * | 2015-11-23 | 2016-03-16 | 重庆万斯金属特种成形有限公司 | Metal bar swing block mechanism |
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