Flat washer with locking function

Abstract

The utility model provides a flat washer with a locking function, which belongs to the technical field of mechanical manufacturing and comprises a bolt and a locking component arranged outside the bolt, the locking component comprises a first washer, a storage groove, a first connecting rod, a spring, a fixing plate, a second connecting rod and a second washer, the first washer is slidably arranged on the outer wall of the bolt, and the second washer is slidably arranged on the outer wall of the bolt. The storage groove is formed in the inner wall of the first gasket, one end of the first connecting rod is rotationally connected to the inner wall of the storage groove, the other end of the second connecting rod is rotationally connected to the outer wall of the second connecting rod, and the spring is fixedly arranged on the outer wall of the fixing plate. By means of the locking assembly and the gasket with the spring pressure locking function, continuous elastic pressure can be applied to a connected part after installation, when equipment is subjected to vibration or impact or under the action of dynamic loads, the elastic pressure can offset external force enabling the bolt to loosen, and the bolt can be tightly locked through the pressure of the spring, so that the safety risk is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to mechanical manufacturing technical field, and specifically relates to a flat washer with locking function. BACKGROUND

[0002] In many mechanical connection and assembly applications, bolt connection is a common way. However, the bolt is easy to appear loose phenomenon when being influenced by factors such as vibration, impact, temperature change. The traditional flat washer mainly plays the role of dispersing the axial pressure of the bolt, protecting the connection surface. It is usually a simple circular sheet, and the friction between it and the bolt and the connection surface is limited. When facing vibration and impact, this friction is often insufficient to prevent the loosening of the bolt. With the continuous development of industrial technology, the reliability requirement of mechanical connection is higher and higher. In the field of aerospace, the plane will experience complex airflow changes and strong vibration during flight, and the fastening requirement of bolt connection is extremely high. Any loosening of a bolt can cause serious safety accidents.

[0003] The flat washer with locking function has the defects that the flat washer itself is usually rigid and has no elasticity like the spring washer. When subjected to dynamic loads such as vibration and impact, the flat washer cannot provide a sustained elastic restoring force to offset the external force that loosens the connection. The surface of the flat washer is relatively smooth, and the friction generated when it is in contact with the nut, bolt or connected component is limited. In the long-term use process, especially in the environment with vibration or temperature change, this limited friction is easy to be overcome. The flat washer has no elastic deformation ability to compensate for the gap between the connected components or the displacement caused by various factors. In the assembly process, if there is a small gap between the components or a gap is generated due to wear, deformation and other reasons during use, the flat washer cannot deform itself to fill the gap and maintain a tight connection like the elastic washer. SUMMARY

[0004] The utility model aims at providing a flat washer with locking function, which aims at solving the problems proposed in the background art.

[0005] A flat washer with locking function, comprising,

[0006] A bolt;

[0007] The locking assembly is arranged at the outer portion of the bolt, wherein the locking assembly comprises a first washer, a receiving groove, a first connecting rod, a spring, a fixed plate, a second connecting rod and a second washer, the first washer is slidingly arranged at the outer wall of the bolt, the receiving groove is arranged at the inner wall of the first washer, one end of the first connecting rod is rotatably connected to the inner wall of the receiving groove, the other end of the second connecting rod is rotatably connected to the outer wall of the second connecting rod, the spring is fixedly arranged at the outer wall of the fixed plate, the two fixed plates are respectively fixedly arranged at the outer walls of the first washer and the second washer, one end of the second connecting rod is rotatably arranged at the inner wall of the receiving groove, the other end of the second connecting rod is rotatably arranged at the inner wall of the first connecting rod, and the second washer is slidingly arranged at the outer wall of the bolt.

[0008] Further, the outer wall of the second washer is fixedly provided with a first rubber ring.

[0009] Further, the outer wall of the bolt is slidingly provided with a second rubber ring.

[0010] Further, the outer wall of the bolt is threadedly connected with a base.

[0011] Further, the outer wall of the second washer is provided with a toothed groove at the upper portion.

[0012] Further, the receiving groove is matched with the first connecting rod and the second connecting rod.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] Through the locking assembly, the washer with the spring pressure locking function can continuously exert an elastic pressure on the connected components after installation, and the elastic pressure can offset the external force that loosens the bolt when the equipment is subjected to vibration, impact or dynamic load, so that the spring pressure can tightly lock the bolt and reduce the safety risk. BRIEF DESCRIPTION OF DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.

[0016] Fig. 1 It is the first perspective view of the utility model;

[0017] Fig. 2 It is the second perspective view of the utility model;

[0018] Fig. 3 It is the third perspective view of the utility model.

[0019] In the figure: 1, bolt; 2, first washer; 3, receiving groove; 4, first connecting rod; 5, spring; 6, fixed plate; 7, second connecting rod; 8, second washer; 9, first rubber ring; 10, base; 11, second rubber ring. DETAILED DESCRIPTION

[0020] The technical solutions 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. 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 other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do 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. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the utility model can be understood according to the specific circumstances.

[0023] Please refer to Figs. 1-3 The technical solutions provided by the embodiment are as follows:

[0024] A flat washer with locking function, comprising,

[0025] Bolt 1;

[0026] The locking assembly is arranged at the outer portion of the bolt 1, wherein: the locking assembly comprises a first washer 2, a receiving groove 3, a first connecting rod 4, a spring 5, a fixed plate 6, a second connecting rod 7 and a second washer 8, the first washer 2 is slidingly arranged at the outer wall of the bolt 1, the receiving groove 3 is arranged at the inner wall of the first washer 2, one end of the first connecting rod 4 is rotatably connected to the inner wall of the receiving groove 3, the other end of the second connecting rod 7 is rotatably connected to the outer wall of the second connecting rod 7, the spring 5 is fixedly arranged at the outer wall of the fixed plate 6, the two fixed plates 6 are fixedly arranged at the outer walls of the first washer 2 and the second washer 8 respectively, one end of the second connecting rod 7 is rotatably arranged at the inner wall of the receiving groove 3, the other end of the second connecting rod 7 is rotatably arranged at the inner wall of the first connecting rod 4, and the second washer 8 is slidingly arranged at the outer wall of the bolt 1.

[0027] In the embodiment of the utility model, the washer with spring 5 pressure locking function can exert a continuous elastic pressure on the connected parts after installation, which can offset the external force that loosens the bolt 1 under the action of vibration, impact or dynamic load, and the pressure of the spring 5 can tightly lock the bolt 1 to reduce the safety risk. First, when the bolt 1 is installed on the base 10, the second washer 8 will be pressed down in this process, and the first washer 2 and the second washer 8 coincide under the pressure of the spring 5, at which time the installation of the bolt 1 is completed. When the bolt 1 is tightened, the pressure will be concentrated in the local area of the connecting parts, and the first washer 2 and the second washer 8 with spring 5 pressure locking function can disperse this concentrated pressure to a larger area, the first rubber ring 9 can increase the friction between the bolt 1 and the second washer 8, and can play a buffering and shock-absorbing role, and the second rubber ring 11 can reduce the risk of loosening of the bolt 1 caused by vibration.

[0028] Specifically, the outer wall of the second washer 8 is fixedly provided with the first rubber ring 9.

[0029] In the embodiment of the utility model, the first rubber ring 9 can increase the friction between the bolt 1 and the second washer 8, and can play a buffering and shock-absorbing role.

[0030] Specifically, the outer wall of the bolt 1 is slidingly provided with the second rubber ring 11.

[0031] In the embodiment of the utility model, the second rubber ring 11 can reduce the risk of loosening of the bolt 1 caused by vibration.

[0032] Specifically, the outer wall of the bolt 1 is threadedly connected with the base 10.

[0033] In the embodiment of the utility model, the base 10 ensures the stability of the connection.

[0034] Specifically, the outer wall of the second washer 8 is provided with a toothed groove.

[0035] In the embodiment of the utility model, the tooth pattern can increase the friction between the second gasket 8 and the bolt 1.

[0036] Specifically, the receiving groove 3 is matched with the first connecting rod 4 and the second connecting rod 7.

[0037] In the embodiment of the utility model, the matching between the receiving groove 3 and the first connecting rod 4 and the second connecting rod 7 can make the first gasket 2 and the second gasket 8 coincide.

[0038] Working principle:

[0039] Through the locking assembly, the gasket with the spring 5 pressure locking function can exert a continuous elastic pressure on the connected components after installation, and this elastic pressure can offset the external force that loosens the bolt 1 when the equipment is subjected to vibration, impact or under the action of dynamic load. The pressure of the spring 5 can tightly lock the bolt 1 to reduce the safety risk. First, when the bolt 1 is installed on the base 10, the second gasket 8 will be pressed down in this process. Under the pressure of the spring 5, the first gasket 2 and the second gasket 8 coincide, and at this time, the installation of the bolt 1 is completed. When the bolt 1 is tightened, the pressure will be concentrated in the local area of the connected components. The first gasket 2 and the second gasket 8 with the spring 5 pressure locking function can disperse this concentrated pressure to a larger area. The first rubber ring 9 can increase the friction between the bolt 1 and the second gasket 8, which can play a buffering and shock-absorbing role. The second rubber ring 11 can reduce the risk of loosening of the bolt 1 due to vibration.

[0040] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A flat washer with a locking function, characterized in that, include, Bolt (1); A locking assembly is provided on the outside of the bolt (1), wherein: the locking assembly includes a first washer (2), a receiving groove (3), a first connecting rod (4), a spring (5), a fixing plate (6), a second connecting rod (7), and a second washer (8). The first washer (2) is slidably disposed on the outer wall of the bolt (1). The receiving groove (3) is opened on the inner wall of the first washer (2). One end of the first connecting rod (4) is rotatably connected to the inner wall of the receiving groove (3). The second connecting rod (7) The other end of the spring (5) is rotatably connected to the outer wall of the second connecting rod (7). The spring (5) is fixedly set on the outer wall of the fixing plate (6). The two fixing plates (6) are respectively fixedly set on the outer walls of the first washer (2) and the second washer (8). One end of the second connecting rod (7) is rotatably set on the inner wall of the storage groove (3). The other end of the second connecting rod (7) is rotatably set on the inner wall of the first connecting rod (4). The second washer (8) is slidably set on the outer wall of the bolt (1).

2. A flat washer with locking function according to claim 1, characterized in that, The outer wall of the second washer (8) is fixedly provided with a first rubber ring (9).

3. A flat washer with locking function according to claim 2, characterized in that, The outer wall of the bolt (1) is provided with a second rubber ring (11).

4. A flat washer with locking function according to claim 3, characterized in that, The outer wall of the bolt (1) is threaded with a base (10).

5. A flat washer with locking function according to claim 4, characterized in that, The upper part of the outer wall of the second washer (8) is provided with toothed patterns.

6. A flat washer with locking function according to claim 5, characterized in that, The storage slot (3) is matched with the first connecting rod (4) and the second connecting rod (7).

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