Shock-resistant locknut for automobile

Abstract

The utility model discloses an anti-shock locknut for an automobile, which comprises a part, and a screw hole penetrates through the part. According to the shock-resistant locknut for the automobile, when parts of the automobile are fixed, the bolt head drives the bolt rod to be inserted into the screw hole, then the disc spring and the nut are sequentially arranged on the bolt rod in a sleeving mode, and due to the fact that the inclined faces of the anti-loosening tooth grooves and the anti-loosening teeth face the same direction as the screwing direction of the nut, when the nut is screwed, the anti-loosening tooth grooves abut against the anti-loosening teeth; after the nut is screwed, the nut can continue to be screwed through the elasticity of the disc spring till the anti-loosening teeth are aligned with the anti-loosening tooth grooves, the anti-loosening teeth abut against the interior of the anti-loosening tooth grooves through the spring, and when the nut is stressed in the unscrewing direction due to vibration, the anti-loosening teeth abut against the vertical faces of the anti-loosening tooth grooves, so that the nut can be screwed smoothly. According to the anti-loosening nut, the nut can be limited to rotate in the unscrewing direction, then nut loosening caused by automobile vibration is effectively avoided, and parts with different thicknesses can be fastened through the anti-loosening structure of the nut.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field, concretely is an automobile anti -vibration lock nut. BACKGROUND

[0002] The automobile nut is an important fastener for fixing and connecting parts on the automobile. In order to avoid the loosening of the nut due to vibration, an automobile anti-vibration lock nut is needed.

[0003] In the patent application with the name of "an automobile anti-vibration lock nut" and the authorization publication number CN221921637U and the authorization publication date of October 29, 2024, a screw rod body and a nut body are included, the nut body is threadedly sleeved on the screw rod body, a connecting strip block is fixedly installed at one end of the nut body, a clamping type clamping connection assembly is installed in the limiting sliding groove, one end of the clamping type clamping connection assembly is clamped in the annular clamping groove formed in the screw rod body, an arc-shaped mounting block is fixedly installed at the other end of the nut body, an arc-shaped limiting groove is formed in the inner wall of the arc-shaped mounting block, a connecting plate is inserted into the arc-shaped limiting groove, and a lubricating oil temporary storage assembly is fixedly installed at the other end of the connecting plate; the utility model can slowly release the lubricating oil into the space between the nut body and the screw rod body, avoid the situation that the lubricating oil falls off when the lubricating oil is directly added between the nut body and the screw rod body, and effectively improve the stability of the nut body during use.

[0004] The existing automobile anti-vibration lock nut can effectively improve the stability of the nut body during use, but in use, it is found that the lock nut achieves the effect of preventing loosening through the clamping type clamping connection assembly, and the installation position of the clamping type clamping connection assembly is limited by the annular clamping groove on the screw rod body, so that the clamping type clamping connection assembly can only be installed at the position of the annular clamping groove, resulting in that when the thickness of the connected parts changes, the lock structure of the nut cannot be installed, which is not convenient to use. Therefore, we propose an automobile anti-vibration lock nut to solve the problems mentioned above. UTILITY MODEL CONTENTS

[0005] 1. The technical problem to be solved by the utility model is:

[0006] The utility model aims to provide an automobile anti-vibration lock nut to solve the problems in the above background technology.

[0007] 2. Technical scheme:

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an automobile anti-vibration lock nut, including a part, a screw hole is penetrated through the part, a bolt rod is penetrated through the inside of the screw hole, wherein,

[0009] The bottom end of the bolt rod is fixedly connected with a bolt head, a disc spring is sleeved outside the bolt rod above the part, a nut is threadedly connected on the bolt rod above the disc spring, anti-loose tooth grooves are equidistantly arranged on the ring side of the bolt rod, a base is fixedly connected on the top of one side of the nut, and a fixed support is fixedly connected on the top of the base away from the bolt rod.

[0010] A guide rod slot is penetrated through the middle of the fixed support, a guide rod is penetrated through the guide rod slot, a baffle is fixedly connected on the end of the guide rod away from the bolt rod, a movable top plate is fixedly connected on the end of the guide rod close to the bolt rod, a spring is sleeved on the guide rod between the movable top plate and the fixed support, and an anti-loose tooth is fixedly connected on the end of the fixed support away from the guide rod.

[0011] Preferably, the external dimensions of the bolt head and the disc spring are greater than the internal dimension of the screw hole.

[0012] Preferably, the same side of the anti-loose tooth groove and the anti-loose tooth is an inclined surface, and the internal dimension of the anti-loose tooth groove is consistent with the internal dimension of the anti-loose tooth.

[0013] Preferably, the base is fixedly connected with the nut by welding.

[0014] Preferably, the guide rod is a rectangular column, and the external dimension of the guide rod is consistent with the internal dimension of the guide rod slot.

[0015] Preferably, the external dimension of the spring is greater than the internal dimension of the guide rod slot, and the internal dimension of the spring is smaller than the external dimensions of the fixed support and the movable top plate.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the anti-shock anti-loose nut for automobile has the following specific contents:

[0018] (1) When the part of the automobile needs to be fixed, the bolt head drives the bolt rod to be inserted into the screw hole, then the disc spring and the nut are sleeved on the bolt rod in sequence, because the inclined surfaces of the anti-loose tooth groove and the anti-loose tooth are in the same direction as the tightening direction of the nut, when the nut is tightened, the anti-loose tooth groove and the anti-loose tooth abut each other, so that the nut can be smoothly tightened, after being tightened, the nut can continue to be tightened by the elasticity of the disc spring, until the anti-loose tooth is aligned with the anti-loose tooth groove, the anti-loose tooth is abutted in the anti-loose tooth groove by the spring, when the nut is stressed in the loosening direction due to vibration, because the perpendicular surfaces of the anti-loose tooth and the anti-loose tooth groove abut each other, the rotation of the nut in the loosening direction is limited, thereby effectively avoiding the loosening of the nut caused by the vibration of the automobile, and the anti-loose structure of the nut can fasten parts with different thicknesses.

[0019] (2) when the nut rotates to cause the anti-loose tooth to move, the anti-loose tooth drives the guide rod to move in the guide rod groove, and the guide structure formed by the guide rod and the guide rod groove guides the movement of the anti-loose tooth, so that the movement of the anti-loose tooth is prevented from deviating. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of the utility model;

[0021] Figure 2 It is a structure schematic view of the utility model from the top;

[0022] Figure 3 It is a structure schematic view of the utility model from the top;

[0023] Figure 4 It is a structure schematic view of the utility model from the top; Figure 1 It is a structure schematic view of the utility model from the top;

[0024] Figure 5 It is a structure schematic view of the utility model from the top; Figure 2 It is a structure schematic view of the utility model from the top.

[0025] In the figure: 1, part; 2, screw hole; 3, bolt rod; 4, bolt head; 5, disc spring; 6, nut; 7, anti-loose tooth groove; 8, base; 9, fixed support; 10, guide rod groove; 11, guide rod; 12, baffle; 13, movable top plate; 14, spring; 15, anti-loose tooth. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a 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 belong to the scope of protection of the utility model.

[0027] In the description of the utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0028] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implying the number of the technical features indicated. Therefore, the features defined as "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited.

[0029] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing", "providing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiment

[0030] Please refer to Figures 1 to 5 A shockproof and anti-loose nut for automobile, comprising a part 1, a threaded hole 2 penetrating through the part 1, a bolt shaft 3 penetrating through the threaded hole 2, wherein,

[0031] The bottom end of the bolt shaft 3 is fixedly connected with a bolt head 4, a disc spring 5 is sleeved on the outer side of the bolt shaft 3 above the part 1, a nut 6 is threadedly connected on the bolt shaft 3 above the disc spring 5, anti-loose tooth grooves 7 are equidistantly arranged on the ring side of the bolt shaft 3, a base 8 is fixedly connected on the top of one side of the nut 6, and a fixed support 9 is fixedly connected on the top of the base 8 away from the bolt shaft 3.

[0032] A guide rod slot 10 penetrates through the middle of the fixed support 9, a guide rod 11 penetrates through the guide rod slot 10, a baffle 12 is fixedly connected on the end of the guide rod 11 away from the bolt shaft 3, a movable top plate 13 is fixedly connected on the end of the guide rod 11 close to the bolt shaft 3, a spring 14 is sleeved on the guide rod 11 between the movable top plate 13 and the fixed support 9, and an anti-loose tooth 15 is fixedly connected on the end of the fixed support 9 away from the guide rod 11.

[0033] When the part 1 of the automobile needs to be fixed, the bolt head 4 drives the bolt rod 3 to be inserted into the screw hole 2, and then the disc spring 5 and the nut 6 are sequentially sleeved on the bolt rod 3. Since the inclined surfaces of the anti-loose tooth groove 7 and the anti-loose tooth 15 are in the same direction as the tightening direction of the nut 6, when the nut 6 is tightened, the anti-loose tooth groove 7 and the anti-loose tooth 15 are in abutment, so that the nut 6 can be tightened smoothly. After being tightened, the nut 6 can continue to be tightened due to the elasticity of the disc spring 5, until the anti-loose tooth 15 is aligned with the anti-loose tooth groove 7. The anti-loose tooth 15 is abutted in the anti-loose tooth groove 7 by the spring 14. When the nut 6 is subjected to force in the loosening direction due to vibration, the nut 6 is limited to rotate in the loosening direction due to the abutment of the vertical surface of the anti-loose tooth 15 and the anti-loose tooth groove 7, thereby effectively avoiding the loosening of the nut 6 caused by the vibration of the automobile. And through the anti-loose structure of the nut 6, the parts 1 of different thicknesses can be fastened. When the nut 6 needs to be disassembled, the anti-loose tooth 15 is moved out of the inside of the anti-loose tooth groove 7 by overcoming the elastic force of the spring 14 by the baffle 12, so that the nut 6 can be rotated in the loosening direction.

[0034] Please refer to Figures 1 to 5 , the external dimensions of the bolt head 4 and the disc spring 5 are greater than the internal dimensions of the screw hole 2, the same side of the anti-loose tooth groove 7 and the anti-loose tooth 15 is an inclined surface, and the internal dimensions of the anti-loose tooth groove 7 and the anti-loose tooth 15 are matched, and the base 8 is fixedly connected with the nut 6 by welding.

[0035] Please refer to Figures 1 to 5 , the guide rod 11 is a rectangular column, and the external dimensions of the guide rod 11 are matched with the internal dimensions of the guide rod groove 10. The external dimensions of the spring 14 are greater than the internal dimensions of the guide rod groove 10, and the internal dimensions of the spring 14 are smaller than the external dimensions of the fixed support 9 and the movable top plate 13. When the nut 6 rotates to cause the anti-loose tooth 15 to move, the anti-loose tooth 15 drives the guide rod 11 to move in the guide rod groove 10. The guide structure formed by the guide rod 11 and the guide rod groove 10 guides the movement of the anti-loose tooth 15 to avoid the movement of the anti-loose tooth 15 from deviating.

[0036] Working principle: when the anti-vibration anti-loose nut for the automobile is used, if Figures 1 to 5As shown, first, when the part 1 of the automobile needs to be fixed, the bolt head 4 drives the bolt rod 3 to be inserted into the screw hole 2, then the disc spring 5 and the nut 6 are sequentially sleeved on the bolt rod 3, since the anti-loose tooth groove 7 and the inclined surface of the anti-loose tooth 15 are in the same direction as the tightening direction of the nut 6, when the nut 6 is tightened, the anti-loose tooth groove 7 and the anti-loose tooth 15 are in abutment, so that the nut 6 can be tightened smoothly, after being tightened, the nut 6 can continue to be tightened by the elasticity of the disc spring 5, until the anti-loose tooth 15 is aligned with the anti-loose tooth groove 7, the anti-loose tooth 15 is abutted in the anti-loose tooth groove 7 by the spring 14, when the nut 6 is stressed in the loosening direction due to vibration, since the anti-loose tooth 15 and the vertical surface of the anti-loose tooth groove 7 are in abutment, the rotation of the nut 6 in the loosening direction can be limited, thereby effectively avoiding the loosening of the nut 6 caused by the vibration of the automobile, and through the anti-loose structure of the nut 6, the parts 1 of different thicknesses can be fastened, when the nut 6 needs to be disassembled, the anti-loose tooth 15 is moved out of the inside of the anti-loose tooth groove 7 by the baffle 12 driving the anti-loose tooth 15 to overcome the elastic force of the spring 14, so that the nut 6 can be rotated in the loosening direction, when the nut 6 is rotated to cause the anti-loose tooth 15 to move, the anti-loose tooth 15 drives the guide rod 11 to move in the guide rod groove 10, the movement of the anti-loose tooth 15 is guided by the guide structure formed by the guide rod 11 and the guide rod groove 10, so as to avoid the deviation of the movement of the anti-loose tooth 15.

[0037] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced equivalently, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A shock-resistant and anti-loosening nut for automobiles, characterized in that, Including parts (1), the part (1) is threaded through the screw hole (2), the screw hole (2) is threaded through the screw rod (3), wherein, The bottom end of the screw rod (3) is fixedly connected with the screw head (4), the outer side of the screw rod (3) above the part (1) is sleeved with the disc spring (5), the screw rod (3) above the disc spring (5) is threadedly connected with the nut (6), the ring side of the screw rod (3) is equally provided with the anti-loosening tooth groove (7), one side of the nut (6) top is fixedly connected with the base (8), the top of the base (8) away from the screw rod (3) is fixedly connected with the fixed support (9); The middle part of the fixed support (9) is threaded through the guide rod groove (10), the guide rod (11) is threaded through the guide rod groove (10), the guide rod (11) is fixedly connected with the baffle (12) away from the screw rod (3) one end, the guide rod (11) is fixedly connected with the movable top plate (13) close to the screw rod (3) one end, the spring (14) is sleeved on the guide rod (11) between the movable top plate (13) and the fixed support (9), the fixed support (9) is fixedly connected with the anti-loosening tooth (15) away from the guide rod (11) one end.

2. The anti-shock and anti-loose nut according to claim 1, characterized in that: The external dimensions of the screw head (4) and the disc spring (5) are greater than the internal dimensions of the screw hole (2).

3. The anti-shock and anti-loose nut according to claim 1, characterized in that: The same side of the anti-loosening tooth groove (7) and the anti-loosening tooth (15) is an inclined surface, and the internal dimensions of the anti-loosening tooth groove (7) and the anti-loosening tooth (15) are consistent.

4. The anti-shock and anti-loose nut according to claim 1, characterized in that: The base (8) is fixedly connected with the nut (6) by welding.

5. The anti-shock and anti-loose nut according to claim 1, characterized in that: The guide rod (11) is a rectangular column, and the external dimensions of the guide rod (11) are consistent with the internal dimensions of the guide rod groove (10).

6. The anti-shock and anti-loose nut according to claim 1, characterized in that: The external dimensions of the spring (14) are greater than the internal dimensions of the guide rod groove (10), and the internal dimensions of the spring (14) are smaller than the external dimensions of the fixed support (9) and the movable top plate (13).

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