Deep thread anti-loosening bolt structure

Abstract

The utility model relates to the technical field of bolt structures, and discloses a deep thread anti-loosening bolt structure, which comprises a bolt main body, the bolt main body comprises a top part, a polished rod part and a thread part, and the top part, the polished rod part and the thread part are integrally connected; the outer surface of the threaded part is sleeved with a nut, a clamping ring assembly is arranged in one end of the nut, and the nut is limited and prevented from loosening through the clamping ring assembly. A blocking piece is arranged on the outer surface of the thread part and located on the outer side of the nut, and the friction force of nut installation is increased through the blocking piece. The separation blade is installed on the outer side of the nut, the anti-skid lines are arranged on the surface of the side, making contact with the nut, of the separation blade, the friction force between the separation blade and the nut is increased, the nut is prevented from loosening due to vibration, meanwhile, the clamping ring is installed at one end in the nut, the inclined clamping teeth are arranged in the clamping ring, and the clamping teeth are of an elastic structure; the position of the nut is clamped, and the anti-loosening capacity of the nut is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt structure technical field, concretely is a kind of deep thread anti-loosening bolt structure. BACKGROUND

[0002] Bolt is the mechanical part, cylindrical threaded fastener with nut. By head and screw rod (cylindrical body with external thread) two parts consisting of a class of fasteners, need to cooperate with nut, for fastening connection two parts with through hole.

[0003] For example, a bolt structure disclosed in Chinese patent CN220816221U, the head includes stepped block and top block, the side of top block away from screw rod is equipped with elastic member;When installing, the head is passed through the through hole of part, then rotates a certain angle, the elastic member is outwards to the head and screw rod, makes block clamping tight through hole inner wall, top block is in contact with part side, and then nut is rotated into it. The structure of the bolt is simple, convenient to operate, the bolt and nut can be operated from the same side, the connection between parts is avoided due to the shape structure, volume or installation environment, the connection between parts is realized, and the connection strength between parts can be improved. However, the traditional bolt is mostly fixed on mechanical equipment, and the mechanical equipment will produce certain vibration when in use. Long-term vibration can cause loosening of the bolt, affect the fastening effect of the bolt, so a deep thread anti-loosening bolt structure is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0004] (I) technical problem solved

[0005] In view of the deficiencies in the prior art, the utility model provides a deep thread anti-loosening bolt structure, which has the advantages of anti-loosening effect, and solves the problem that the traditional bolt is prone to loosening.

[0006] (II) technical scheme

[0007] To achieve the above anti-loosening effect, the utility model provides the following technical scheme: a deep thread anti-loosening bolt structure, comprising:

[0008] Bolt body, the bolt body includes top, light rod part and threaded part, and the top, light rod part and threaded part are integrally connected;

[0009] The outer surface of the threaded part is provided with a nut, one end of the nut is provided with a snap ring assembly inside, and the snap ring assembly is limited to prevent loosening;

[0010] The outer surface of the threaded part is provided with a baffle outside the nut, and the baffle increases the friction force of the nut installation.

[0011] Preferably, the nut and the baffle are both screwed with the threaded part, and the nut and the baffle are installed by rotating.

[0012] Preferably, the outer surface of one end of the top is sleeved with a metal gasket, and the outer surface of the other end of the top is sleeved with a spring gasket on the inner side of the nut, so that the metal gasket and the spring gasket increase the firmness of bolt installation.

[0013] Preferably, the outer surface of the other end of the top is sleeved with a spring gasket on the inner side of the nut, and the contact surface of the nut and the baffle is provided with anti-skid lines, so that the anti-skid lines increase the friction of the nut and prevent loosening.

[0014] Preferably, the clamping ring assembly comprises a mounting groove formed in the outer surface of one end of the nut, and the clamping ring is mounted in the mounting groove, and the inner wall of the clamping ring is provided with a plurality of clamping teeth which are all inclined, so that the clamping teeth clamp the threaded position to limit and prevent loosening of the nut.

[0015] Preferably, the inner wall of the mounting groove is provided with a protrusion, and the outer surface of the clamping ring is provided with a groove matched with the protrusion, so that the protrusion is inserted into the groove to limit and install the clamping ring.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a deep thread anti-loosening bolt structure which has the following beneficial effects:

[0018] The baffle is installed on the outer side of the nut, the side surface of the baffle in contact with the nut is provided with anti-skid lines, the friction of the baffle and the nut is increased, the nut is prevented from loosening due to vibration, a clamping ring is installed at one end in the nut, the clamping ring is provided with inclined clamping teeth, the clamping teeth are of an elastic structure, the clamping teeth clamp the position of the nut after the nut is fixed, and the anti-loosening capability of the nut is further increased. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is an overall explosion view of the utility model;

[0021] Figure 3 It is an explosion view of the nut installation structure of the utility model;

[0022] Figure 4 It is an explosion view of the overall structure of the nut of the utility model.

[0023] In the drawing: 1, bolt main body; 11, top; 12, light rod part; 13, threaded part; 2, metal gasket; 3, nut; 31, clamping ring; 32, clamping tooth; 33, mounting groove; 4, baffle; 5, spring gasket. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] Please refer to Figures 1-4 The utility model provides the following technical scheme: a kind of deep thread anti-loose bolt structure, it include: bolt main body 1, the bolt main body 1 includes top 11, light rod portion 12 and threaded portion 13, and top 11, light rod portion 12 and threaded portion 13 integrally connected;

[0026] In the present example, the outer surface of the threaded portion 13 is sleeved with a nut 3, one end of the nut 3 is internally provided with a snap ring assembly, which limits and prevents loosening through the snap ring assembly. Preferably, the snap ring assembly includes a mounting groove 33 opened on the outer surface of one end of the nut 3, the mounting groove 33 is internally mounted with a snap ring 31, the inner wall of the snap ring 31 is provided with a plurality of clamping teeth 32, and the clamping teeth 32 are all inclinedly arranged. The clamping teeth 32 are of elastic structure, and after the nut 3 is fixed, the nut 3 is clamped to further increase the anti-loosening capability of the nut 3.

[0027] Among them, the inner wall of the mounting groove 33 is mounted with a protrusion, the outer surface of the snap ring 31 is provided with a groove matched with the protrusion, and the snap ring 31 is inserted into the mounting groove 33 of the nut 3. When the internal clamping teeth 32 are worn, the snap ring 31 can be taken out from the mounting groove 33 for replacement, which is more convenient.

[0028] In the present embodiment, the outer surface of the threaded portion 13 is provided with a baffle 4 on the outer side of the nut 3, which increases the friction force of the nut 3 installation. The outer surface of the other end of the top 11 is sleeved with a spring washer 5 on the inner side of the nut 3. The contact surface of the nut 3 and the baffle 4 is provided with anti-skid lines to increase the friction force of the baffle and the nut 3.

[0029] In the present embodiment, the nut 3 and the baffle 4 are both threadedly connected with the threaded portion 13. The outer surface of one end of the top 11 is sleeved with a metal washer 2, and the outer surface of the other end of the top 11 is sleeved with a spring washer 5 on the inner side of the nut 3.

[0030] The working principle of the present embodiment is as follows:

[0031] In use, the bolt body 1 is installed to the position needing fastening, the metal washer 2 and the spring washer 5 are arranged on both sides of the fastening part before installation, the nut 3 is installed on the threaded part to fix;

[0032] By installing the stopper on the outside of the nut 3, the surface of the side of the stopper in contact with the nut 3 is provided with anti-skid lines to increase the friction between the stopper and the nut 3, prevent the nut 3 from loosening due to vibration, and install the snap ring 32 at one end inside the nut 3, the snap ring 32 is provided with the inclined clamping teeth 32, the clamping teeth 32 are of elastic structure, the position of the nut 3 is clamped after the nut 3 is fixed, and the anti-loosening ability of the nut 3 is further increased.

[0033] The snap ring 31 is inserted into the installation groove 33 of the nut 3, when the internal clamping teeth 32 are worn, the snap ring 31 can be taken out from the installation groove 33 for replacement, which is more convenient.

[0034] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or action from another entity or action, without necessarily requiring or implying that there is any such actual relationship or order between these entities or actions. Moreover, the terms "comprises", "comprising" or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article or apparatus including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0035] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A deep thread anti-loosening bolt structure, comprising: a bolt body (1) comprising a top portion (11), a rod portion (12) and a threaded portion (13), and the top portion (11), the rod portion (12) and the threaded portion (13) being integrally connected; characterized in that: an outer surface of the threaded portion (13) is sleeved with a nut (3), an inner portion of one end of the nut (3) is provided with a snap ring assembly, and the snap ring assembly is used for limiting and preventing loosening; an outer surface of the threaded portion (13) located outside the nut (3) is provided with a baffle (4), and the baffle (4) is used for increasing friction of the nut (3) during installation.

2. A deep thread locking bolt structure according to claim 1, wherein: The nut (3) and the baffle (4) are in threaded connection with the threaded portion (13).

3. A deep thread locking bolt structure according to claim 1, wherein: An outer surface of one end of the top portion (11) is sleeved with a metal gasket (2), and an outer surface of the other end of the top portion (11) located inside the nut (3) is sleeved with a spring gasket (5).

4. A deep thread locking bolt structure according to claim 1, wherein: An outer surface of the other end of the top portion (11) located inside the nut (3) is sleeved with the spring gasket (5), and a contact surface of the nut (3) and the baffle (4) is provided with anti-skid lines.

5. A deep thread locking bolt structure according to claim 1, wherein: The snap ring assembly comprises a mounting groove (33) opened in an outer surface of one end of the nut (3), the mounting groove (33) is internally mounted with a snap ring (31), an inner wall of the snap ring (31) is provided with a plurality of clamping teeth (32), and the clamping teeth (32) are all arranged in an inclined manner.

6. A deep thread locking bolt structure according to claim 5 wherein: A convex block is mounted on an inner wall of the mounting groove (33), and a recess groove matched with the convex block is opened in an outer surface of the snap ring (31).

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