CN217735986U

CN217735986U - Locking nut

Info

Publication number: CN217735986U
Application number: CN202221159006.XU
Authority: CN
Inventors: 弗拉维奥·拉德里察尼
Original assignee: QINGDAO ADR AXLES MANUFACTURING CO LTD
Current assignee: QINGDAO ADR AXLES MANUFACTURING CO LTD
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-11-04
Anticipated expiration: 2032-05-16

Abstract

The utility model relates to a fastening part's technical field, a lock nut, including retaining member and the bolt that is used for preventing the retaining member not hard up, the retaining member is provided with the locking hole with the junction of bolt, and the locking hole is passed to the screw rod one end of bolt, and terminal surface and outside plane looks butt, press from both sides between the retaining member and the bolt the gasket that is used for preventing the bolt not hard up that is equipped with between the two. The utility model prevents the processing of the bolt by processing the nut, and avoids the potential safety hazard of the bolt when in use; in addition, the locking can be realized only by screwing the nut during the locking, and the operation is convenient; the gasket is arranged, so that the bolt can be prevented from loosening, the pretightening force of the bolt is improved, and the bolt is more reliably installed; the utility model discloses processing is simple, reduction in production cost.

Description

Locking nut

Technical Field

The utility model relates to a fastening part's technical field specifically is a lock nut.

Background

The nut is also called a nut and is a fixing tool, the center of which is provided with a hole, and the inner side of the hole is provided with threads. Nuts are often used in conjunction with appropriately sized screws to secure the associated joint. If the nut is loosened by vibration or other environmental factors, the relevant part can be further reinforced by using glue or pins. The nut is hexagonal in shape and square in shape.

The locking part of the existing nut consists of three parts, namely a nut, a check ring and a bolt. When the spindle head is locked for use, the nut and the bolt are firstly locked according to the specified torque, the retainer ring is placed on the outer side of the nut, and then the retainer ring and the nut are locked by the bolt. In this case, certain potential safety hazards exist in bolt processing, and the locking structure is complex, high in cost and low in efficiency, so that improvement and development are needed for the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a locking nut, concrete embodiment is as follows:

the utility model provides a locking nut, includes retaining member and is used for preventing the not hard up bolt of retaining member, and the retaining member is provided with the locking hole with the junction of bolt, and the locking hole is passed to the screw rod one end of bolt, and terminal surface and external plane looks butt, presss from both sides between the retaining member and the bolt the two and is equipped with and is used for preventing the not hard up gasket of bolt.

The locking piece consists of a washer and a ring nut axially and fixedly arranged on the end face of the washer, grooves are uniformly distributed on the outer circle of the washer at equal intervals, and the grooves are arc-shaped.

The ring nut comprises an open slot, the outer circle of the ring nut is longitudinally provided with the open slot, the open slot extends to the position of the central axis of the ring nut, and the locking hole is arranged at the position of the open slot.

Furthermore, the locking hole comprises unthreaded hole and screw hole, and the one end that ring nut kept away from the packing ring sets up to the unthreaded hole, and the other end sets up to the screw hole.

Furthermore, the outer wall of the gasket is provided with a tooth part, and the tooth part is abutted against the end face of the bolt.

Furthermore, the bolts are arranged in a plurality of numbers, and the bolts are respectively arranged corresponding to the open grooves.

Furthermore, the ring nut is a hexagonal nut, and the outer edge of the ring nut is tangent to the washer.

Owing to adopted above technical scheme, the beneficial technological effect of the utility model is that:

1. the utility model prevents the processing of the bolt by processing the nut, thereby avoiding the potential safety hazard of the bolt when in use; in addition, the locking can be realized only by screwing the nut during the locking, and the operation is convenient;

2. the utility model has the advantages that the gasket is arranged, so that the bolt can be prevented from loosening, the pretightening force of the bolt is improved, and the bolt is more reliably installed;

3. the utility model discloses processing is simple, reduction in production cost.

Drawings

Fig. 1 is an exploded view of a lock nut of the present invention;

fig. 2 is a left side view of a lock nut of the present invention;

fig. 3 is a front view of the locking nut of the present invention.

Description of reference numerals:

1. a locking piece, 2, a bolt, 3, a gasket, 4 and a locking hole,

11. the combination of the washer, 12, the ring nut,

111. the groove is arranged on the upper surface of the shell,

121. an open slot.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings and examples:

it should be noted that the structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the efficacy that the present invention can produce and the purpose that the present invention can achieve.

Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

Embodiment 1, with reference to fig. 1 to 3, this embodiment provides a lock nut, including retaining member 1 and bolt 2 for preventing retaining member 1 from becoming flexible, the junction of retaining member 1 and bolt 2 is provided with locking hole 3, the screw rod one end of bolt 2 passes locking hole 3, and the terminal surface butts with the external plane, wherein press from both sides between retaining member 1 and the bolt 2 and be equipped with the gasket 4 that is used for preventing bolt 2 from becoming flexible, specifically, retaining member 1 is connected with external spindle nose screw-thread fit, bolt 2 passes gasket 4 and is connected with retaining member 1, screw up to the locking hole 3 of retaining member 1 according to the regulation moment of torsion, make retaining member 1 play locking effect.

Retaining member 1 comprises packing ring 11 and the ring nut 12 that the axial set firmly located 11 terminal surfaces of packing ring, and in order to cooperate the outside spindle nose to use, the excircle of packing ring 11 is equidistant circumference equipartition recess 111, and recess 111 is the arc form to cooperate with outside spindle nose.

Ring nut 12 includes open slot 121, and open slot 121 has vertically been seted up to ring nut 12's excircle, and open slot 121 extends to ring nut 12's axis position department, and locking hole 3 is located open slot 121 department and sets up, specifically, is provided with open slot 121 on the ring nut 12, and bolt 2 passes open slot 121 and is connected with locking hole 3, increases bolt 2 torsional forces, and then plays locking effect through the screw thread deformation.

Locking hole 3 comprises unthreaded hole and screw hole, and ring nut 12 keeps away from the one end of packing ring 11 and sets up to the unthreaded hole, and the other end sets up to the screw hole, and specifically, the screw rod tip of bolt 2 passes unthreaded hole and screw hole threaded connection, and the setting of unthreaded hole can be convenient for make the screw rod tip pass, plays the purpose of the construction bolt 2 of being convenient for, and the setting of screw hole can play fixing bolt 2's purpose.

The outer wall of gasket 4 is equipped with tooth portion, and tooth portion and the terminal surface looks butt of bolt 2 increase tooth portion and the frictional force of bolt 2, and then prevent that bolt 2 from becoming flexible.

The bolts 2 are provided in plural, and the plural bolts 2 are respectively provided corresponding to the opening grooves 121, specifically, the number of the bolts 2 can be selected according to actual conditions.

In one embodiment, the number of the locking holes 3 is three along the ring nut 12 at equal intervals, and the opening grooves 121 are processed corresponding to the locking holes 3, so that three M8 bolts 2 and metal gaskets of the same specification are required to be mounted, and the locking capability of the locking member 1 is further improved.

The ring nut 12 is a hexagonal nut, and the outer edge of the ring nut 12 is tangent to the washer 11, so that the diameter of the ring nut 12 is prevented from exceeding the washer 11, and the appearance is prevented from being influenced.

When using, at first lock retaining member 1 to outside spindle nose according to the prescribed moment of torsion earlier, then pass bolt 2 gasket 4 and locking hole 3, make the terminal surface looks butt of its bolt 2 and the terminal surface of outside spindle nose, according to the screw hole screw-thread fit connection of prescribed moment of torsion and locking hole 3, play locking effect, simultaneously, gasket 4 is in the state of flattening, plays the not hard up effect of preventing bolt 2.

Claims

1. A lock nut, characterized by comprising a locking member (1) and a bolt (2) for preventing the locking member (1) from loosening,

the junction of retaining member (1) and bolt (2) is provided with locking hole (3), and locking hole (3) are passed to the screw rod one end of bolt (2), and terminal surface and external plane looks butt, wherein press from both sides between retaining member (1) and bolt (2) and be equipped with and be used for preventing not hard up gasket (4) of bolt (2).

2. The locking nut as claimed in claim 1, characterized in that the locking member (1) is composed of a washer (11) and a ring nut (12) axially fixed on the end face of the washer (11), the outer circle of the washer (11) is uniformly provided with grooves (111) at equal intervals on the circumference, and the grooves (111) are arc-shaped.

3. The lock nut according to claim 2, characterized in that the ring nut (12) comprises an open slot (121), the open slot (121) is longitudinally opened on the outer circle of the ring nut (12), the open slot (121) extends to the central axis of the ring nut (12), and the locking hole (3) is disposed at the open slot (121).

4. A lock nut according to claim 1, characterised in that said locking hole (3) consists of a unthreaded hole and a threaded hole, the end of the ring nut (12) remote from the washer (11) being provided as a unthreaded hole and the other end being provided as a threaded hole.

5. Lock nut according to claim 1, characterized in that the outer wall of the washer (4) is provided with teeth which abut against the end face of the bolt (2).

6. A lock nut according to claim 3, characterized in that said bolt (2) is provided in plurality, and a plurality of bolts (2) are provided respectively corresponding to the open grooves (121).

7. Lock nut according to claim 2, characterized in that said ring nut (12) is a hexagonal nut, the outer edge of the ring nut (12) being tangent to the washer (11).