Crown type slotted nut with self-locking function

Abstract

The utility model relates to the technical field of nuts, in particular to a crown-shaped slotted nut with a self-locking function, which comprises a slotted nut, a wheel shaft screw main body is in threaded connection with the inside of the slotted nut, an anti-dropping hole is arranged inside the wheel shaft screw main body, a notch is arranged at the top of the slotted nut, and the anti-dropping hole is arranged at the bottom of the slotted nut. A nut claw is formed between the two sets of notches, and a cotter pin mounting assembly is arranged in the nut claw. Each cotter pin mounting assembly comprises a mounting plate mounted on the corresponding nut claw, a mounting hole is formed in the middle of each mounting plate, a cotter pin body is arranged in each mounting hole in a penetrating mode, and the two cotter pin mounting assemblies are arranged in a notch symmetrical about the axis of the slotted nut. According to the split pin, the mounting plate is arranged, the mounting hole with the small diameter is formed in the mounting plate, and even if the pin head of the split pin body can enter the notch, the mounting hole with the small size cannot penetrate through the anti-disengaging hole of the axle screw body.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field especially is related to a crown type slotted nut with self -locking function. BACKGROUND

[0002] The slotted hexagonal nut is based on the hexagonal nut, a plurality of grooves are turned out through the lathe, the main function of the slotted nut is fixed through the screw rod penetrating the front and rear wheel shafts, so that the front and rear wheel shafts of the vehicle are fixed, and the frame and the tire are stably fixed together.

[0003] Generally speaking, in order to prevent the nut from loosening during driving, the cotter pin is inserted into the hole drilled in the middle of the wheel shaft screw rod through the groove of the slotted nut.

[0004] But this loosening mode depends on the fixation of the cotter pin, the size of the cotter pin needs to be matched with the slot of the slotted hexagonal nut and the hole drilled in the middle of the wheel shaft screw rod, once the diameter of the hole drilled in the middle of the wheel shaft screw rod is small, and the end of the cotter pin is easy to be out of the slot of the slotted hexagonal nut with large size in order to be able to penetrate into the hole drilled in the middle of the wheel shaft screw rod, so that the cotter pin cannot be clamped outside the slot of the slotted hexagonal nut, which affects the loosening effect. SUMMARY

[0005] The utility model discloses a kind of crown type slotted nuts with self -locking function, can be entered slot by being set installation plate, the pin head of installation hole of smaller diameter that installation plate is set, the pin head of installation hole of smaller diameter also cannot pass through the anti-loosening hole of wheel shaft screw body, to solve the problem raised in above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of crown type slotted nuts with self -locking function, including slotted nut, the inside thread connection of the slotted nut has wheel shaft screw body, and the inside of wheel shaft screw body is equipped with anti-loosening hole, the top of the slotted nut is equipped with slot, and nut claw is formed between two groups of slots, the inside of the nut claw is provided with cotter pin installation component;

[0007] The cotter pin installation component includes installation plate installed on the nut claw, and the middle part of installation plate is equipped with installation hole, the inside of the installation hole is provided with the cotter pin body.

[0008] Preferably, the inside of the slotted nut is also installed with anti-loosening component, and the anti-loosening component includes anti-loosening gasket, and the surface of the anti-loosening gasket is equipped with several equidistantly and uniformly distributed matching grooves.

[0009] Preferably, the matching groove is adapted to the nut claw in size, the inner diameter of the anti-loose washer is smaller than the inner diameter of the slotted nut, and the outer diameter of the anti-loose washer is smaller than the outer diameter of the slotted nut.

[0010] Preferably, the anti-loose washer is clamped with the nut claw through the matching groove.

[0011] Preferably, the open pin mounting assembly further comprises a mounting T-shaped groove formed in the sidewall of the nut claw, and the mounting T-shaped groove is internally provided with a mounting clamping block.

[0012] Preferably, the mounting clamping block is integrally formed with the mounting plate, and the mounting plate and the mounting clamping block form an H-shaped structure.

[0013] Preferably, the open pin mounting assembly is provided with two groups, and the open pin mounting assembly is arranged in the slot about the axis of the slotted nut.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. By setting the mounting plate, the open pin body can be inserted into the anti-loose hole of the axle screw body through the mounting hole, and even if the pin head of the open pin body can enter the slot, it will not pass through the anti-loose hole of the axle screw body due to the smaller size of the mounting hole, thereby further reinforcing the axle screw body and the slotted nut.

[0016] 2. By setting the anti-loose washer, the inner diameter of the anti-loose washer is slightly smaller than the inner diameter of the slotted nut, the axle screw body can lift the anti-loose washer upward, so that the anti-loose washer changes its shape and forms an inverted T-shaped structure, so that the top of the anti-loose washer is clamped into the thread of the axle screw body to realize the self-locking function of the slotted nut. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0018] Figure 1 It is the overall structure view of the utility model;

[0019] Figure 2 It is the structure schematic view of the slotted nut of the utility model;

[0020] Figure 3 It is the structure schematic view of the anti-loose assembly and the slotted nut of the utility model;

[0021] Figure 4 The utility model discloses an installation plate structure schematic view.

[0022] Mark explanation:

[0023] 1, wheel axle screw main part;2, slotted nut;3, nut claw;4, slot;5, split pin installation component;501, installation plate;502, installation hole;503, installation T -shaped groove;504, installation clamping block;6, anti -drop component;601, anti -drop gasket;602, matching groove;7, split pin main part. Specific implementation

[0024] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0025] The utility model provides a technical scheme:

[0026] Please refer to Figures 1 to 4 A crown type slotted nut with self -locking function, including slotted nut 2, the inside thread of slotted nut 2 is connected with wheel axle screw main part 1, and the inside of wheel axle screw main part 1 is provided with anti -drop hole, the top of slotted nut 2 is provided with slot 4, and the nut claw 3 is formed between two groups of slot 4, the inside of nut claw 3 is provided with split pin installation component 5;

[0027] Split pin installation component 5 includes installation plate 501 installed on nut claw 3, and the middle part of installation plate 501 is provided with installation hole 502, and the inside of installation hole 502 is provided with split pin main part 7;

[0028] Split pin installation component 5 still includes installation T -shaped groove 503 set up in the side wall of nut claw 3, and installation T -shaped groove 503 is provided with installation clamping block 504 in the inside, and installation clamping block 504 is integrally formed with installation plate 501, and installation plate 501 and installation clamping block 504 form H -shaped structure, split pin installation component 5 is provided with two groups, and split pin installation component 5 is arranged in the inside of the slot 4 about the axis symmetry of slotted nut 2.

[0029] By adopting the above technical scheme, when the open pin body 7 needs to be used, if the size of the open pin body 7 is small, the mounting plate 501 can be additionally arranged on the slotted nut 2, the mounting clamping block 504 on the mounting plate 501 is inserted into the inside of the T-shaped groove 503, at this time, the open pin body 7 can be inserted into the anti-disengagement hole of the axle screw body 1 through the mounting hole 502, because the diameter of the mounting hole 502 is smaller than the size between the notches 4, at this time, the position of the pin head of the open pin body 7 is located on one side of the mounting hole 502, even if the pin head of the open pin body 7 can enter the notch 4, it will not pass through the anti-disengagement hole of the axle screw body 1 through the smaller size mounting hole 502, thereby the axle screw body 1 and the slotted nut 2 are secondarily reinforced.

[0030] Specifically, as shown in Figure 3 The inside of the slotted nut 2 is also provided with an anti-disengagement assembly 6, and the anti-disengagement assembly 6 comprises an anti-disengagement gasket 601, a plurality of matching grooves 602 are uniformly distributed on the surface of the anti-disengagement gasket 601, the shape size of the matching grooves 602 is matched with the nut claw 3, the inner diameter of the anti-disengagement gasket 601 is smaller than the inner diameter of the slotted nut 2, and the outer diameter of the anti-disengagement gasket 601 is smaller than the outer diameter of the slotted nut 2, and the anti-disengagement gasket 601 is clamped with the nut claw 3 through the matching grooves 602.

[0031] By adopting the above technical scheme, the anti-disengagement gasket 601 is welded in the inside of the slotted nut 2, the inner diameter of the anti-disengagement gasket 601 is slightly smaller than the inner diameter of the slotted nut 2, when the slotted nut 2 is installed on the axle screw body 1, the slotted nut 2 is lowered, the head of the axle screw body 1 can be in contact with the anti-disengagement gasket 601, thereby the anti-disengagement gasket 601 is lifted upwards, so that the anti-disengagement gasket 601 changes its shape and forms an inverted T-shaped structure, so that the top of the anti-disengagement gasket 601 is clamped into the inside of the thread of the axle screw body 1, so that the slotted nut 2 can only move downward along the axle screw body 1, and cannot be disengaged upward from the slotted nut 2, thereby realizing the self-locking function of the slotted nut 2.

[0032] Working principle: the inner diameter of the anti-falling gasket 601 is slightly smaller than the inner diameter of the slotted nut 2, when the slotted nut 2 is installed on the axle screw body 1, the slotted nut 2 is lowered, the head of the axle screw body 1 can be in contact with the anti-falling gasket 601, thereby lifting the anti-falling gasket 601 upwards, so that the anti-falling gasket 601 changes its shape and forms an inverted cone structure, so that the top of the anti-falling gasket 601 is clamped into the inside of the threads of the axle screw body 1, so that the slotted nut 2 can only move downward along the axle screw body 1, and cannot be separated upward from the slotted nut 2, thereby realizing the self-locking function of the slotted nut 2, when the opening pin body 7 needs to be used, if the size of the opening pin body 7 is small, the installation plate 501 can be added on the slotted nut 2, the installation clamping block 504 on the installation plate 501 is inserted into the inside of the T-shaped groove 503, at this time the opening pin body 7 can be inserted into the anti-falling hole of the axle screw body 1 through the installation hole 502, since the diameter of the installation hole 502 is smaller than the size between the slots 4, at this time the pin head position of the opening pin body 7 is located on one side of the installation hole 502, even if the pin head of the opening pin body 7 can enter the slot 4, it will not pass through the anti-falling hole of the axle screw body 1 through the smaller size installation hole 502, thereby reinforcing the axle screw body 1 and the slotted nut 2 twice.

[0033] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A slotted crown nut with self-locking function, comprising a slotted nut (2), characterized in that: The slotted nut (2) is internally threaded to a wheel axle screw body (1), and the wheel axle screw body (1) is provided with an anti-dislodgement hole. The top of the slotted nut (2) is provided with a slot (4), and a nut claw (3) is formed between the two sets of slots (4). A cotter pin mounting assembly (5) is provided inside the nut claw (3). The cotter pin mounting assembly (5) includes a mounting plate (501) mounted on a nut claw (3), and a mounting hole (502) is provided in the middle of the mounting plate (501), and a cotter pin body (7) is inserted through the mounting hole (502).

2. A slotted crown nut with self-locking function according to claim 1, characterized in that: The slotted nut (2) is also equipped with an anti-detachment component (6), and the anti-detachment component (6) includes an anti-detachment washer (601), and the surface of the anti-detachment washer (601) is provided with several evenly distributed matching grooves (602).

3. A slotted crown nut with self-locking function according to claim 2, characterized in that: The outer dimensions of the matching groove (602) are adapted to the nut claw (3), the inner diameter of the anti-loosening washer (601) is smaller than the inner diameter of the slotted nut (2), and the outer diameter of the anti-loosening washer (601) is smaller than the outer diameter of the slotted nut (2).

4. A slotted crown nut with self-locking function according to claim 3, characterized in that: The anti-detachment pad (601) engages with the nut claw (3) through the matching groove (602).

5. A slotted crown nut with self-locking function according to claim 1, characterized in that: The cotter pin mounting assembly (5) further includes a mounting T-slot (503) formed on the side wall of the nut claw (3), and a mounting block (504) is provided inside the mounting T-slot (503).

6. A slotted crown nut with self-locking function according to claim 5, characterized in that: The mounting block (504) and the mounting plate (501) are integrally formed, and the mounting plate (501) and the mounting block (504) form an H-shaped structure.

7. A slotted crown nut with self-locking function according to claim 6, characterized in that: The cotter pin mounting assembly (5) is provided in two sets, and the cotter pin mounting assembly (5) is located inside the slot (4) which is symmetrical about the axis of the slotted nut (2).

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