CN216922769U - Rust-proof high-hardness pin shaft - Google Patents

Abstract

The utility model belongs to the field of pin shafts, and particularly relates to an antirust high-hardness pin shaft which comprises a pin shaft body, a limiting bottom plate and a limiting plate; one end of the pin shaft body is fixedly connected with a limiting bottom plate, two empty grooves are formed in the pin shaft body, and a pair of empty grooves are symmetrically distributed around the central axis of the pin shaft body; through the round pin axle body, spacing bottom plate, and the structural design of limiting plate, slide with the limiting plate on both sides to the direction that is close to the round pin axle body earlier, can extrude the shell fragment and produce elasticity when the limiting plate is gliding, then be close to the articulated department of two parts with the round pin axle body to needs, insert the round pin axle body in the round pin hole, spacing bottom plate laminating is on the surface of object simultaneously, then after the round pin axle passes, the shell fragment can automatic re-setting, can drive the limiting plate when the shell fragment resets and resets, the installation to the round pin axle body is accomplished, cooperation through shell fragment and limiting plate, the completion is with the function of round pin hub fixation in the round pin hole.

Description

Rust-proof high-hardness pin shaft

Technical Field

The utility model relates to the field of pin shafts, in particular to an antirust high-hardness pin shaft.

Background

The pin shaft is a fastener used at a hinged part when the two parts are hinged.

The pin shaft can be fixedly connected statically and can also move relative to a connected piece, the 45 steel is a common material of shaft parts and has the advantages of high strength, toughness and the like, and the antirust high-hardness pin shaft is generally made of the material.

When the existing pin shaft is used, iron wires generally penetrate into the positioning holes to fix the pin shaft, and the iron wires are loosened and fall off after a long time, so that the hinged part is scattered to cause danger; therefore, the rust-proof high-hardness pin shaft is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects of the prior art, and solve the problem that iron wires are loosened and fall off after a long time, and therefore the hinged part is scattered to cause danger, the utility model provides an antirust high-hardness pin shaft.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model relates to an antirust high-hardness pin shaft which comprises a pin shaft body, a limiting bottom plate and a limiting plate; the hinge pin comprises a hinge pin body and is characterized in that one end of the hinge pin body is fixedly connected with a limiting bottom plate, two empty grooves are formed in the hinge pin body, the empty grooves are symmetrically distributed with the center shaft of the hinge pin body, a limiting plate is slidably connected to the inside of each empty groove, an elastic sheet is fixedly connected to one end of each limiting plate, one end of each elastic sheet, which is far away from the limiting plate, is fixedly connected to the side wall of each empty groove, and the hinge pin can be fixed in a hinge pin hole through the cooperation of the elastic sheet and the limiting plate.

Preferably, the transversal "protruding" font of personally submitting of dead slot, the fillet has been seted up on the surface of limiting plate, the spacing fixture block of both sides fixedly connected with of limiting plate can directly block the round pin axle body card in the keyhole through the fillet, and spacing fixture block can prevent that limiting plate roll-off extreme position breaks away from the dead slot.

Preferably, the surface of round pin axle body has seted up the ring channel, the surface cover of ring channel has the snap ring, the ladder groove has been seted up on the surface of limiting plate, overlaps the snap ring on the surface of limiting plate through the fillet, accomplishes spacing to the limiting plate, then extracts the round pin axle body, also can utilize the space that the ladder groove left to dismantle with the screwdriver is supplementary.

Preferably, the oiling groove has been seted up on the surface of round pin axle body, the hexagonal hole has been seted up to the limiting plate one side of keeping away from round pin axle body, can more conveniently pour into the pinhole with rust-resistant liquid through the oiling groove, avoids extravagant.

Preferably, the draw-in groove has been seted up on the surface of round pin axle body, the spout has been seted up on the surface of round pin axle body, the surface of round pin axle body is equipped with the protective cover, the protective cover is the annular, one side fixedly connected with cardboard of protective cover, the spring groove has been seted up to the inside of round pin axle body, the lateral wall fixedly connected with reset spring in spring groove, reset spring's one end fixedly connected with bulb, the diameter of bulb is less than the notch in spring groove, the circular slot has been seted up for the position of bulb on the surface of cardboard, can prevent through the protective cover that foreign matter such as entering dust, water from getting into.

Preferably, the diameter of draw-in groove is less than the ring channel, the lateral wall fixedly connected with sealing washer of draw-in groove, the sealing washer is laminated with the protective cover mutually, the one end fixedly connected with rubber pad of protective cover can realize certain sealed effect through sealing washer and rubber pad.

The utility model has the advantages that:

1. according to the utility model, through the structural design of the pin shaft body, the limiting bottom plate and the limiting plates, the limiting plates on two sides slide towards the direction close to the pin shaft body, so that the limiting plates are retracted into the empty grooves, the elastic sheets can be extruded to generate elasticity while the limiting plates slide, then the pin shaft body is close to the hinged position of two parts, the pin shaft body is inserted into the pin hole, meanwhile, the limiting bottom plate is attached to the surface of an object, then, after the pin shaft passes through, the elastic sheets can automatically reset, the elastic sheets can reset while driving the limiting plates to reset, the installation of the pin shaft body is completed, and the function of fixing the pin shaft in the pin hole is completed through the matching of the elastic sheets and the limiting plates.

2. According to the utility model, through the structural design of the protective cover, the rubber pad and the sealing ring, the protective cover moves towards the direction close to the pin shaft body, the clamping plate is driven to move in the same direction while the protective cover moves, so that the clamping plate is attached to the surface of the clamping groove through the sliding groove, then the protective cover is rotated, and the clamping plate is driven to rotate at the same time.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a pin body according to the first embodiment;

fig. 2 is a schematic cross-sectional structure view of a pin body according to the first embodiment;

fig. 3 is a schematic partial sectional view of a pin body according to the first embodiment;

FIG. 4 is a schematic view of a protecting cover according to the first embodiment;

FIG. 5 is a schematic diagram of a structure shown in FIG. 4 according to the first embodiment;

fig. 6 is a schematic structural diagram of a chamfer of the second embodiment.

In the figure: 1. a pin shaft body; 2. a limiting bottom plate; 3. a hexagonal hole; 4. an oil injection groove; 5. a protective cover; 6. A rubber pad; 7. a limiting plate; 8. an annular groove; 9. a limiting clamping block; 10. an empty groove; 11. a spring plate; 12. A stepped groove; 13. a chute; 14. clamping a plate; 15. a circular groove; 16. a ball head; 17. a return spring; 18. a spring slot; 19. a snap ring; 20. a card slot; 21. a seal ring; 22. and (6) chamfering.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1-5, an antirust high-hardness pin comprises a pin body 1, a limiting bottom plate 2, and a limiting plate 7; one end of the pin shaft body 1 is fixedly connected with a limiting bottom plate 2, two empty grooves 10 are formed in the pin shaft body 1, a pair of empty grooves 10 are symmetrically distributed around the central axis of the pin shaft body 1, a limiting plate 7 is slidably connected in the empty grooves 10, one end of the limiting plate 7 is fixedly connected with an elastic sheet 11, and one end, far away from the limiting plate 7, of the elastic sheet 11 is fixedly connected to the side wall of the empty groove 10; during operation, earlier 7 to the direction that is close to round pin axle body 1 of limiting plate on both sides slide simultaneously, make limiting plate 7 withdraw in the dead slot 10, can extrude shell fragment 11 and produce elasticity when limiting plate 7 is gliding, then will sell axle body 1 to needs to be close to two articulated departments of part, it is downthehole to insert round pin axle body 1, spacing bottom plate 2 laminates on the surface of object simultaneously, then after the round pin axle passes, shell fragment 11 can automatic re-setting, can drive limiting plate 7 when shell fragment 11 resets and reset, accomplish the installation to round pin axle body 1, cooperation through shell fragment 11 and limiting plate 7, can fix the round pin axle in the round pin hole.

The cross section of the empty groove 10 is in a convex shape, the surface of the limiting plate 7 is provided with a fillet, and two sides of the limiting plate 7 are fixedly connected with limiting clamping blocks 9; during operation, directly extrude limiting plate 7 through the fillet for cardboard 14 slides to the dead slot 10, can drive spacing fixture block 9 and remove when limiting plate 7 is gliding, can directly block into round pin axle body 1 in the keyhole through the fillet, and spacing fixture block 9 can prevent that limiting plate 7 roll-off extreme position from breaking away from dead slot 10.

The surface of the pin shaft body 1 is provided with an annular groove 8, the surface of the annular groove 8 is sleeved with a clamping ring 19, and the surface of the limiting plate 7 is provided with a stepped groove 12; during operation, with round pin axle body 1 insert the downthehole back of round pin, make the laminating of ladder groove 12 on the part surface, make part surface and spacing bottom plate 2 leave certain space, conveniently dismantle, when needing to dismantle round pin axle body 1, pass through ring channel 8 earlier snap ring 19 and slide to the direction that is close to limiting plate 7, overlap snap ring 19 on the surface of limiting plate 7 through the fillet, accomplish spacing to limiting plate 7, then extract round pin axle body 1, also can utilize the space that ladder groove 12 left to assist with the screwdriver and dismantle.

An oil injection groove 4 is formed in the surface of the pin shaft body 1, and a hexagonal hole 3 is formed in one side, away from the pin shaft body 1, of the limiting plate 7; the during operation, for preventing that round pin axle body 1 from rustting, in 4 injection pin holes with antirust liquid pass through the oiling groove, then rotate hexagonal hole 3 with the spanner for antirust liquid evenly coats on the surface of round pin axle body 1, can more conveniently inject the pinhole with antirust liquid through oiling groove 4, avoids extravagant.

The surface of the pin shaft body 1 is provided with a clamping groove 20, the surface of the pin shaft body 1 is provided with a sliding groove 13, the surface of the pin shaft body 1 is provided with a protective cover 5, the protective cover 5 is annular, one side of the protective cover 5 is fixedly connected with a clamping plate 14, a spring groove 18 is formed in the pin shaft body 1, the side wall of the spring groove 18 is fixedly connected with a return spring 17, one end of the return spring 17 is fixedly connected with a ball head 16, the diameter of the ball head 16 is smaller than the notch of the spring groove 18, and the surface of the clamping plate 14 is provided with a circular groove 15 corresponding to the position of the ball head 16; the during operation, earlier remove protective cover 5 to the direction that is close to round pin axle body 1, drive cardboard 14 syntropy and remove when protective cover 5 removes, make cardboard 14 pass through the surface of spout 13 laminating at draw-in groove 20, then rotation protective cover 5, it is rotatory to drive cardboard 14 simultaneously, after cardboard 14 contacts bulb 16, can extrude bulb 16 and make bulb 16 slide to the inside near spring groove 18, can extrude reset spring 17 and produce elasticity when bulb 16 is gliding, then after the position of circular slot 15 and bulb 16 is overlapped, reset spring 17 resets, it goes into in the circular slot 15 to drive bulb 16 card simultaneously, cooperation through bulb 16 and circular slot 15, can carry out the joint with protective cover 5, prevent that protective cover 5 from rocking, can prevent to get into the dust through protective cover 5, foreign matter such as water gets into.

The diameter of the clamping groove 20 is smaller than that of the annular groove 8, a sealing ring 21 is fixedly connected to the side wall of the clamping groove 20, the sealing ring 21 is attached to the protective cover 5, and a rubber pad 6 is fixedly connected to one end of the protective cover 5; during operation, can drive rubber pad 6 and remove when protective cover 5 removes for rubber pad 6 laminates on the surface of object, goes into draw-in groove 20 at cardboard 14 card after, and protective cover 5 can laminate on the surface of sealing washer 21, because the diameter of draw-in groove 20 is less than ring channel 8, so can realize certain sealed effect through sealing washer 21 and rubber pad 6.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present invention, a chamfer 22 is formed on a surface of the pin shaft body 1; during operation, when needing hinged joint, need insert the pinhole with round pin axle body 1, if do not have chamfer 22, then inconvenient accurate pinhole with round pin axle body 1 needs the butt joint many times, can assist through chamfer 22 and go into the pinhole with round pin axle body 1 card, realize articulated.

The working principle is that when two parts need to be hinged, the limiting plate 7 slides towards the direction close to the pin shaft body 1, the limiting clamping block 9 is driven to move when the limiting plate 7 slides, the elastic sheet 11 is extruded to generate elasticity, then the pin shaft body 1 is close to the hinged position of the two parts, the pin shaft body 1 is inserted into the pin hole, the stepped groove 12 is attached to the surface of the part, a certain gap is reserved between the surface of the part and the limiting bottom plate 2, when the pin shaft passes through the rear elastic sheet 11 to reset, the limiting plate 7 is driven to reset when the elastic sheet 11 resets, the installation of the pin shaft body 1 is completed, in order to prevent the pin shaft body 1 from rusting, antirust liquid is injected into the pin hole through the oil injection groove 4, then the hexagonal hole 3 is rotated by a wrench, the antirust liquid is uniformly coated on the surface of the pin shaft body 1, when the pin shaft body 1 needs to be disassembled, the clamping ring 19 slides towards the direction close to the limiting plate 7 through the annular groove 8, the clamping ring 19 is sleeved on the surface of the limiting plate 7 through a round angle to complete the limiting of the limiting plate 7, then the pin shaft body 1 is pulled out, and the gap reserved in the stepped groove 12 can be used for assisting in dismounting by a screwdriver; then the protective cover 5 is moved towards the direction close to the pin shaft body 1, the protective cover 5 is moved while driving the clamping plate 14 to move in the same direction, and simultaneously the protective cover 5 also drives the rubber pad 6 to move, so that the rubber pad 6 is attached to the surface of an object, meanwhile, the clamping plate 14 drives the protective cover 5 to be attached to the surface of the sealing ring 21 after passing through the sliding groove 13, then the protective cover 5 is rotated while driving the clamping plate 14 to rotate, after the clamping plate 14 contacts the ball head 16, the ball head 16 is extruded to enable the ball head 16 to slide towards the inner part close to the spring groove 18, the ball head 16 can extrude the return spring 17 to generate elasticity while sliding, then after the circular groove 15 and the ball head 16 are overlapped, the return spring 17 is reset, and simultaneously the ball head 16 is driven to be clamped into the circular groove 15, the protective cover 5 can be clamped through the matching of the ball head 16 and the circular groove 15, the protective cover 5 is prevented from shaking, and dust can be prevented from entering through the protective cover 5, Water and other foreign matters enter.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims (6)

1. The utility model provides an antirust high rigidity round pin axle which characterized in that: the hinge pin comprises a hinge pin body (1), a limiting bottom plate (2) and a limiting plate (7); the utility model discloses a hinge pin, including round pin axle body (1), the one end fixedly connected with of round pin axle body (1) limit bottom plate (2), two dead slots (10) have been seted up to the inside of round pin axle body (1), and is a pair of dead slot (10) are with the center pin symmetric distribution of round pin axle body (1), the inside sliding connection of dead slot (10) has limiting plate (7), the one end fixedly connected with shell fragment (11) of limiting plate (7), the one end fixed connection of keeping away from limiting plate (7) of shell fragment (11) is at the lateral wall of dead slot (10).

2. The rust-preventive high-hardness pin shaft according to claim 1, characterized in that: the cross section of the empty groove (10) is in a convex shape, the surface of the limiting plate (7) is provided with a fillet, and two sides of the limiting plate (7) are fixedly connected with limiting clamping blocks (9).

3. The rust-preventive high-hardness pin shaft according to claim 2, characterized in that: the pin shaft is characterized in that the surface of the pin shaft body (1) is provided with an annular groove (8), the surface of the annular groove (8) is sleeved with a clamping ring (19), and the surface of the limiting plate (7) is provided with a stepped groove (12).

4. The rust-preventive high-hardness pin shaft according to claim 3, characterized in that: an oil filling groove (4) is formed in the surface of the pin shaft body (1), and a hexagonal hole (3) is formed in one side, away from the pin shaft body (1), of the limiting plate (7).

5. The rust-preventive high-hardness pin shaft according to claim 4, characterized in that: draw-in groove (20) have been seted up on the surface of round pin axle body (1), spout (13) have been seted up on the surface of round pin axle body (1), the surface of round pin axle body (1) is equipped with protective cover (5), protective cover (5) are the annular, one side fixedly connected with cardboard (14) of protective cover (5), spring groove (18) have been seted up to the inside of round pin axle body (1), the lateral wall fixedly connected with reset spring (17) of spring groove (18), the one end fixedly connected with bulb (16) of reset spring (17), the diameter of bulb (16) is less than the notch of spring groove (18), circular slot (15) have been seted up for the position of bulb (16) on the surface of cardboard (14).

6. The rustproof high-hardness pin shaft according to claim 5, characterized in that: the diameter of draw-in groove (20) is less than ring channel (8), the lateral wall fixedly connected with sealing washer (21) of draw-in groove (20), sealing washer (21) and protective cover (5) laminate mutually, the one end fixedly connected with rubber pad (6) of protective cover (5).

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