CN219587934U - Knob with locking function that takes off - Google Patents

Abstract

The utility model discloses a knob with an anti-loosening function, which comprises a knob body and a screw positioned at one side of the knob body, wherein the screw comprises a first thread section and a second thread section, the second thread section is closer to the knob body, and the first thread section deviates from the knob body; the first thread section is a thread which is normally screwed in and screwed out, and the second thread section is a locking thread, wherein the length ratio of the first thread section to the second thread section is 16:3; the thread lead angle of the second thread section is smaller than that of the first thread section; the thread lead angle of the second thread section is 101% -102% of the thread lead angle of the first thread section; the anti-loosening knob disclosed by the utility model can be used for avoiding loosening or falling of the knob caused by vibration in the long-term use process of the knob; simultaneously, when the knob needs to be unscrewed, the knob can be unscrewed by applying a little force.

Description

Knob with locking function that takes off

Technical Field

The utility model relates to a knob, in particular to a knob with an anti-loosening function.

Background

The knob has the functions of screwing and unscrewing, so that the threaded part of the knob and the internal thread matched with the threaded part of the knob have mutual rotation and reciprocation. The quality of the product is mainly expressed in terms of service life from the use point of view, and the use smoothness, such as the appearance of obvious shaking clearance between a knob and an internal thread matched with the knob, or the appearance of a clamping shell, or tightness or even incapability of screwing in or screwing out of the knob in the screwing process, belongs to unqualified products.

The knob in the current market has no loosening function or needs to be combined with other accessories for locking, so that the knob is always in a continuous vibration process or falls off; or a knob with a locking function requires laborious unscrewing.

For example, patent application number CN202221128053.8 discloses a locking hexagon socket screw, which relates to the technical field of hexagon socket screws. The countersunk head screw comprises a countersunk head screw body, wherein a hexagonal groove is formed in the upper surface of the countersunk head screw body, two symmetrically-arranged grooves are formed in the peripheral side face of the countersunk head screw body, a spring is sleeved in the grooves, a clamping block is sleeved at the other end of the spring, and the length of each groove is larger than that of each clamping block.

According to the patent, the clamping block is arranged, when the countersunk head screw body is arranged in the screw hole, the spring can pop up the clamping block, so that the clamping block is clamped in the screw hole, and the situations that the countersunk head screw body loosens or falls off from the screw hole due to the impact, vibration and the like can be prevented; the anti-loosening effect depends on the matching of the clamping block and the spring, so that the cost and the complexity of the screw are increased,

Therefore, there is a need for an improvement in such a structure to overcome the above-mentioned drawbacks.

Disclosure of Invention

The utility model aims to provide a knob with an anti-loosening function, so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the knob with the anti-loosening function comprises a knob body and a screw positioned at one side of the knob body, wherein the screw comprises a first thread section and a second thread section, the second thread section is closer to the knob body, and the first thread section deviates from the knob body; the first thread section is normally screwed in and screwed out, the second thread section is a locking thread, and the length ratio of the first thread section to the second thread section is 16:3.

Further, the thread lead angle of the second thread section is smaller than the thread lead angle of the first thread section; and the thread lead angle of the second thread section is 101% -102% of the thread lead angle of the first thread section.

Further, the pitch of the second thread segments is smaller than the pitch of the first thread segments; and the pitch of the second thread section is 98% -99% of the pitch of the first thread section.

Further, the axis of the second thread section is not coincident with the axis of the first thread section.

Further, the thread lead angle of the second thread section is smaller than the thread lead angle of the first thread section; the thread lead angle of the second thread section is 101% -102% of the thread lead angle of the first thread section;

the pitch of the second thread section is smaller than that of the first thread section; and the pitch of the second thread section is 98% -99% of the pitch of the first thread section;

the axis of the second thread section is not coincident with the axis of the first thread section.

Compared with the prior art, the anti-loosening knob disclosed by the utility model has the advantages that loosening or falling of the knob caused by vibration in the long-term use process of the knob is avoided; simultaneously, when the knob needs to be unscrewed, the knob can be unscrewed by applying a little force.

Drawings

Fig. 1 is a top view of a knob with anti-loosening function.

Fig. 2 is a schematic structural view of a knob with anti-loosening function.

Fig. 3 is a schematic view showing a cross section of a first thread segment and a second thread segment in a knob with a loosening prevention function according to a third embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a knob with anti-loosening function includes a knob body 1 and a screw 2 located at one side of the knob body 1, the screw 2 includes a first thread section 3 and a second thread section 4, the second thread section 4 is closer to the knob body 1, and the first thread section 3 is away from the knob body 1; the first thread section 3 is normally screwed in and out, the second thread section 4 is a locking thread, and the length ratio of the first thread section 3 to the second thread section 4 is 16:3;

the thread lead angle of the second thread section 4 is smaller than that of the first thread section 3; the thread lead angle of the second thread section 4 is 101% -102% of the thread lead angle of the first thread section 3;

1-2, a knob with anti-loosening function includes a knob body 1 and a screw 2 located at one side of the knob body 1, the screw 2 includes a first thread section 3 and a second thread section 4, the second thread section 4 is closer to the knob body 1, and the first thread section 3 is away from the knob body 1; the first thread section 3 is normally screwed in and out, the second thread section 4 is a locking thread, and the length ratio of the first thread section 3 to the second thread section 4 is 16:3;

the pitch of the second thread segments 4 is smaller than the pitch of the first thread segments 3; and the pitch of the second thread section 4 is 98% -99% of the pitch of the first thread section 3;

referring to fig. 1-3, a knob with anti-loosening function includes a knob body 1 and a screw 2 located at one side of the knob body 1, the screw 2 includes a first thread section 3 and a second thread section 4, the second thread section 4 is closer to the knob body 1, and the first thread section 3 is away from the knob body 1; the first thread section 3 is normally screwed in and out, the second thread section 4 is a locking thread, and the length ratio of the first thread section 3 to the second thread section 4 is 16:3;

the axis of the second thread section 4 is not coincident with the axis of the first thread section 3;

referring to fig. 1-3, a knob with anti-loosening function includes a knob body 1 and a screw 2 located at one side of the knob body 1, the screw 2 includes a first thread section 3 and a second thread section 4, the second thread section 4 is closer to the knob body 1, and the first thread section 3 is away from the knob body 1; the first thread section 3 is normally screwed in and out, the second thread section 4 is a locking thread, and the length ratio of the first thread section 3 to the second thread section 4 is 16:3;

the thread lead angle of the second thread section 4 is smaller than that of the first thread section 3; the thread lead angle of the second thread section 4 is 101% -102% of the thread lead angle of the first thread section 3;

the pitch of the second thread segments 4 is smaller than the pitch of the first thread segments 3; and the pitch of the second thread section 4 is 98% -99% of the pitch of the first thread section 3;

the axis of the second thread section 4 is not coincident with the axis of the first thread section 3;

according to the scheme, a large amount of data are collected and analyzed according to the plasticity and deformation characteristics of the materials in the manufacturing process, so that the size and the precision of a semi-finished product of the locking section are finally determined, the precision of a thread of the final locking section is ensured, the locking force of the thread is ensured, and the locking force of the thread can be tested through a torque wrench.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "left", "right", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in place when the inventive product is used, or are directions or positional relationships conventionally understood by those skilled in the art, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance. In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, terms such as "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (1)

1. The knob with the anti-loosening function comprises a knob body and a screw positioned at one side of the knob body, and is characterized in that the screw comprises a first thread section and a second thread section, the second thread section is closer to the knob body, and the first thread section deviates from the knob body; the first thread section is a thread which is normally screwed in and screwed out, and the second thread section is a locking thread, wherein the length ratio of the first thread section to the second thread section is 16:3;

the thread lead angle of the second thread section is smaller than that of the first thread section; the thread lead angle of the second thread section is 101% -102% of the thread lead angle of the first thread section;

the pitch of the second thread section is smaller than that of the first thread section; and the pitch of the second thread section is 98% -99% of the pitch of the first thread section;

the axis of the second thread section is not coincident with the axis of the first thread section.