Eccentric bolt structure convenient to adjust

Abstract

The utility model discloses an eccentric bolt structure convenient to adjust, which comprises a bolt main body, and the bolt main body comprises an eccentric hexagonal head and a screw rod; the eccentric hexagonal head is arranged at one end of the screw rod, and the eccentric hexagonal head and the axis of the screw rod are arranged in an offset mode; a bidirectional thread is arranged at one end, far away from the eccentric hexagonal head, of the screw rod; a group of eccentric gaskets are arranged in the middle of the screw rod; an eccentric nut and a locking nut are sequentially arranged at the tail part, far away from the eccentric hexagonal head, of the screw rod; and the thread lines of the eccentric nut and the locking nut are opposite. According to the eccentric bolt structure convenient to adjust, the two-way threads are matched with the locking nut, so that axial locking in the adjusting process is guaranteed, and large-angle deviation is prevented; meanwhile, the inclination angles of the two ends can be adjusted, the application range is greatly widened, and the adjusting flexibility is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to eccentric bolt field, especially relate to a convenient eccentric bolt structure of adjusting. BACKGROUND

[0002] The eccentric bolt adjusting structure is a kind of adjusting component widely used in mechanical field, due to its unique design and function, the accurate adjustment of the angle or position of mechanical component can be realized.For example, in the automobile suspension system, the eccentric bolt adjusting structure is often used to adjust the angle of inclination of wheel, so as to optimize the handling performance and driving stability of vehicle.

[0003] However, the existing eccentric bolt adjusting structure has some deficiencies in practical application;On the one hand, its assembly process involves multiple steps, and the assembly process is relatively complex, which not only increases the production cost, but also may lead to low assembly efficiency;On the other hand, the existing eccentric bolt adjusting structure can only be adjusted from one end, which cannot meet the demand of adjusting from both ends at the same time, which limits its application range and adjustment flexibility to some extent.

[0004] Therefore, the above problems need to be solved. INVENTION CONTENTS

[0005] The utility model aims at overcoming the above-mentioned shortcomings, and provides a kind of eccentric bolt structure of adjusting conveniently, by the setting of two-way thread cooperation lock nut, ensure axial locking in the process of adjusting, prevent the emergence of large angle deviation;At the same time, the inclination of both ends can be adjusted, which greatly improves the application range and adjustment flexibility.

[0006] Technical scheme: in order to realize the above-mentioned purpose, the utility model provides a kind of eccentric bolt structure of adjusting conveniently, including bolt main part, the bolt main part includes eccentric hexagonal head and screw rod;The eccentric hexagonal head is located at one end of screw rod, and the eccentric hexagonal head is arranged with the axial center of screw rod;The end of screw rod away from eccentric hexagonal head is provided with two-way thread;The middle part of screw rod is provided with a group of eccentric washers;The tail of screw rod away from eccentric hexagonal head is sequentially provided with eccentric nut and lock nut;The thread pattern of eccentric nut and lock nut is opposite.

[0007] Further, the sequence is bolt main part, eccentric washer, structure needing eccentric adjustment in external environment, eccentric washer, eccentric nut and lock nut in order when installing.By the cooperation of two-way thread and lock nut, the bolt can realize axial locking in the process of adjusting, which can effectively prevent large angle deviation caused by external force or vibration, ensure the stability and reliability of bolt connection;At the same time, the double design of eccentric nut and lock nut provides additional stability for bolt, even in extreme conditions, the bolt can maintain its adjusted angle and position, avoid mechanical failure caused by loosening.

[0008] Further, the eccentric washer is provided with a buckle at the opening. The buckle structure can resist vibration and impact during mechanical operation, preventing the eccentric washer from loosening or falling off; at the same time, the design of the buckle will not significantly reduce the connection strength due to repeated disassembly and reassembly, and the convenience of maintenance and replacement of the eccentric washer is increased.

[0009] Further, the buckles of the set of eccentric washers are oppositely arranged. The symmetrical buckle design can reduce the friction and stress concentration between the eccentric washer and the screw rod, prolonging the service life of the components.

[0010] Further, the eccentricity of the eccentric nut is equal to the eccentricity of the eccentric hexagonal head. Due to the equal eccentricity, the eccentric nut and the eccentric hexagonal head can uniformly apply the pre-tightening force during tightening, avoiding local stress concentration caused by inconsistent eccentricity.

[0011] Further, the locking nut is coaxial with the screw rod. The coaxial design ensures that the axis of the locking nut and the screw rod completely coincides, so that the pre-tightening force is uniformly distributed, cooperating with the bidirectional thread, and ensuring the axial locking strength.

[0012] Further, the eccentric hexagonal head is provided with an adjusting groove near the central axis of the screw rod. The design of the adjusting groove allows the eccentric hexagonal head to achieve more flexible angle position adjustment during installation and use.

[0013] Further, the tail end surface of the screw rod is also provided with an adjusting groove. The adjusting groove of the screw rod tail provides a tail force point for installation, making the installation more convenient and fast.

[0014] The above technical solution can be seen, the utility model has the following beneficial effects:

[0015] 1. The utility model discloses a convenient eccentric bolt structure, through the setting of bidirectional thread cooperation locking nut, guarantee axial locking in the adjustment process, prevent appearing large angle deviation;

[0016] 2. The utility model discloses a convenient eccentric bolt structure, the symmetrical buckle design can reduce the friction and stress concentration between the eccentric washer and the screw rod, prolongs the service life of component;

[0017] 3. The utility model discloses a convenient eccentric bolt structure, the both ends of bolt main part can carry out the inclination adjustment, has improved the application range and the flexibility of adjustment greatly. DRAWINGS

[0018] Figure 1 The utility model discloses a convenient eccentric bolt structure's structural schematic diagram;

[0019] Figure 2 A partial structure enlarged schematic view of the eccentric bolt structure buckle convenient to adjust of the utility model is disclosed in the application.

[0020] Figure 3 For Figure 1 side view;

[0021] In the figure,

[0022] 1-bolt body; 11-eccentric hexagonal head; 12-screw rod;

[0023] 111-adjusting groove; 121-bidirectional thread;

[0024] 2-eccentric washer; 21-buckle;

[0025] 3-eccentric nut;

[0026] 4-locking nut. DETAILED DESCRIPTION

[0027] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the utility model, and cannot be understood as a limitation of the utility model. EMBODIMENT

[0028] In this embodiment, as Figure 1 The utility model discloses a kind of eccentric bolt structures of convenient adjustment, including bolt body 1, the bolt body 1 includes eccentric hexagonal head 11 and screw rod 12;The eccentric hexagonal head 11 is located at screw rod 12 one end, and eccentric hexagonal head 11 is arranged with the axial center of screw rod 12 offset;The screw rod 12 is equipped with bidirectional thread 121 in the end away from eccentric hexagonal head 11;The middle part of the screw rod 12 is equipped with a set of eccentric washer 2;The tail of the screw rod 12 is away from eccentric hexagonal head 11 and is sequentially equipped with eccentric nut 3 and locking nut 4;The thread pattern of eccentric nut 3 and locking nut 4 is opposite.

[0029] Specifically, the sequence is sequentially bolt body 1, eccentric washer 2, structure needing eccentric adjustment in external environment and eccentric washer 2 when installing, finally eccentric nut 3 and locking nut 4 are tightened in sequence to complete installation.

[0030] Particularly, eccentric hexagonal head 11 is only a preferred, can be replaced with eccentric round head or eccentric flat head according to specific use scene.

[0031] In this embodiment, as Figure 1 And Figure 2 Buckle 21 is equipped at the opening of eccentric washer 2.

[0032] Specifically, such as Figure 2 The buckle 21 is set to fit tightly against the screw 12, and the radius of curvature is the same as that of the screw 12.

[0033] In particular, several buckles 21 can be set to further enhance stability.

[0034] In this embodiment, as Figure 1 and Figure 2 The buckles 21 of the set of eccentric gaskets 2 are arranged opposite to each other.

[0035] Specifically, the clip 21 is engaged with the external structure that requires eccentric adjustment during installation, providing structural stability.

[0036] In this embodiment, as Figure 1 The eccentricity of the eccentric nut 3 is equal to the eccentricity of the eccentric hexagonal head 11.

[0037] In particular, an eccentric plate can be added to facilitate the adjustment of the eccentricity.

[0038] In this embodiment, as Figure 1 The locking nut 4 is coaxial with the screw 12.

[0039] In particular, the locking nut 4 is slightly thinner than the eccentric nut 3, and has the same cross-sectional area, which increases the space utilization rate.

[0040] In this embodiment, as Figure 1 An adjustment groove 111 is provided on the eccentric hexagonal head 11 near the central axis of the screw 12.

[0041] Specifically, hexagonal grooves are preferred for adjusting groove 111.

[0042] In this embodiment, as Figure 1 and Figure 3 The tail end face of the screw 12 is also provided with an adjustment groove 111.

[0043] Specifically, the adjustment groove 111 on the tail end face of the screw 12 is used to assist in installation and improve installation efficiency.

[0044] The working principle of the above embodiments is as follows:

[0045] This utility model discloses an eccentric bolt structure that is easy to adjust. During installation, the screw 12 passes through an eccentric washer 2, and then through the external structure that needs to be eccentrically adjusted. Then, the eccentric washer 2, the eccentric nut 3, and the locking nut 4 are installed in sequence. The buckle 21 of the eccentric washer 2 is engaged with the external structure that needs to be eccentrically adjusted. The eccentric nut 3 and the locking nut 4 are tightened in sequence to complete the installation.

[0046] When the inclination angle needs to be adjusted, the locking nut 4 needs to be loosened slightly; from the eccentric hex head 11 end, adjustment is made by rotating along the central axis of the eccentric hex head 11, the eccentric washer 2 is driven by the screw rod 12, and the inclination angle adjustment of the structure which needs to be eccentrically adjusted to the outside world is completed in cooperation with the buckle 21; when adjustment is made from the tail end of the screw rod 12, adjustment is made by rotating along the central axis of the eccentric nut 3, at this time, due to the double thread setting, the locking nut 4 provides axial locking force, thereby driving the screw rod 12 to rotate to adjust the inclination angle; after the inclination angle adjustment is completed, the locking nut 4 is tightened to complete the adjustment operation.

[0047] The preferred embodiments of the present application are described above, it should be noted that, for those skilled in the art, without departing from the principles of the present application, a number of improvements can be made, these improvements should also be considered as the protection scope of the present application.

Claims

1. A conveniently adjustable eccentric bolt structure, characterized by: Include: The bolt body (1) includes eccentric hexagonal head (11) and screw rod (12); The eccentric hexagonal head (11) is located at one end of the screw rod (12), and the eccentric hexagonal head (11) is offset from the axis of the screw rod (12); The screw rod (12) is provided with a two-way thread (121) at one end away from the eccentric hexagonal head (11); The middle part of the screw rod (12) is provided with a group of eccentric gaskets (2); The tail of the screw rod (12) is provided with an eccentric nut (3) and a locking nut (4) in sequence away from the eccentric hexagonal head (11); The thread of the eccentric nut (3) and the locking nut (4) is opposite.

2. The easily adjustable eccentric bolt structure of claim 1, wherein: The eccentric gasket (2) is provided with a buckle (21) at the opening.

3. The easily adjustable eccentric bolt structure of claim 2, wherein: The buckles (21) of the group of eccentric gaskets (2) are oppositely arranged.

4. The easily adjustable eccentric bolt structure of claim 1, wherein: The eccentricity of the eccentric nut (3) is equal to the eccentricity of the eccentric hexagonal head (11).

5. The easily adjustable eccentric bolt structure of claim 1, wherein: The locking nut (4) is coaxial with the screw rod (12).

6. The easily adjustable eccentric bolt structure of claim 1, wherein: The eccentric hexagonal head (11) is provided with an adjusting groove (111) near the central axis of the screw rod (12).

7. The easily adjustable eccentric bolt structure of claim 1, wherein: The tail end surface of the screw rod (12) is also provided with an adjusting groove (111).

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