CN220337247U

CN220337247U - Anti-drop nut

Info

Publication number: CN220337247U
Application number: CN202322068277.5U
Authority: CN
Inventors: 阮新林
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-01-12
Anticipated expiration: 2033-08-03

Abstract

The utility model discloses an anti-falling nut, which comprises a nut body, wherein the nut body is used for being matched with a bolt thread; the nut body is provided with a locking component; the bolt is provided with a plurality of locking grooves which are used for being matched with the locking assembly; the locking assembly comprises a limiting plate, a limiting plug and a lock hole arranged on the nut body, wherein the limiting plate is arranged in the locking groove, an external thread is arranged on the outer surface of the limiting plug, an internal thread is arranged in the lock hole, the lock hole is used for being detachably connected with the limiting plug, a spring is arranged between the limiting plug and the limiting plate, one end of the spring is fixedly connected with the limiting plate, and the other end of the spring is rotationally connected with the limiting plug. The utility model aims to solve the problems that the anti-loose nut in the prior art cannot limit the nut and cannot radically solve the anti-loose problem of the nut.

Description

Anti-drop nut

Technical Field

The utility model relates to the technical field of nuts, in particular to an anti-falling nut.

Background

And (3) a bolt: a mechanical part, a cylindrical threaded fastener for use with a nut. A fastener consisting of a head part and a screw rod (a cylinder with external threads) needs to be matched with a nut for fastening two parts with through holes. This form of connection is called bolting. If the nut is screwed off the bolt, the two parts can be separated, so the bolt connection belongs to the detachable connection.

The application number is: CN201710020986.2, publication number: the utility model patent of CN106545561A (hereinafter referred to as "prior art 1") discloses a locking nut and a locking nut assembly, a groove is formed on one end face of a slotted nut of the locking nut along the axial direction of the nut, a nylon locking ring is arranged in the groove, the height of the nylon locking ring is smaller than the depth of the groove, the sum of the heights of the nylon locking ring and the metal clamping ring is larger than the depth of the groove, the outer diameters of the nylon locking ring and the metal clamping ring are the same as the diameter of the groove, and the inner diameters of the locking ring and the metal clamping ring are both larger than the nominal diameter of the slotted nut.

The specification of the prior art 1 discloses a locking stop nut and locking stop nut subassembly, when locking stop nut or locking stop nut subassembly is to bolt head or gasket, thereby through the elasticity between grooving nut and the bolt head, gasket or the hexagonal nut to increase the elastic counter force between grooving nut and the bolt head, gasket or the hexagonal nut, remain stable pretightning force throughout between messenger's grooving nut and the bolt head, gasket or the hexagonal nut, thereby ensure that enough frictional force is produced behind the metal clamp ring compressing the nylon stop ring, but in practical application, solve nut loosening and only through increasing frictional force this description nut and still can take place to rotate under vibrations, only the amplitude of rotation diminishes, therefore prior art 1 does not solve the not loose problem of nut from the root.

Disclosure of Invention

The utility model provides an anti-drop nut, and aims to solve the problems that the anti-loose nut in the prior art cannot limit the nut and cannot radically solve the anti-loose problem of the nut.

In order to solve the technical problems, the utility model adopts the following technical scheme:

an anti-drop nut comprises a nut body, wherein the nut body is used for being matched with a bolt in a threaded manner; the nut body is provided with a locking component;

the bolt is provided with a plurality of locking grooves which are used for being matched with the locking assembly;

the locking assembly comprises a limiting plate, a limiting plug and a lock hole arranged on the nut body, wherein the limiting plate is arranged in the locking groove, an external thread is arranged on the outer surface of the limiting plug, an internal thread is arranged in the lock hole, the lock hole is used for being detachably connected with the limiting plug, a spring is arranged between the limiting plug and the limiting plate, one end of the spring is fixedly connected with the limiting plate, and the other end of the spring is rotationally connected with the limiting plug.

Further, a first installation bulge is arranged on the limiting plate, a second installation bulge is arranged at the end part of the limiting plug, a spring is arranged between the first installation bulge and the second installation bulge, the spring is sleeved on the first installation bulge and the second installation bulge, one end of the spring is fixedly connected with the first installation bulge, and the other end of the spring is rotationally connected with the limiting plug.

Further, the number of the locking grooves is two, three or four.

Further, a cross slot is arranged on the limiting plug.

Further, the spring is a strong spring.

Further, an anti-slip pad is arranged in the locking groove.

Further, the anti-slip pad is a rubber anti-slip pad.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model mainly comprises a nut body, wherein the nut body is used for being matched with a bolt in a threaded manner; the nut body is provided with a locking component; in the actual use process, a worker cooperates the nut body with the bolt, after the nut body is matched with the bolt, the worker installs the spring between the limiting plate and the limiting plug, then adjusts the direction of the limiting plate to enable the direction of the limiting plate to correspond to the direction of the locking groove, then screws the limiting plug into the lock hole, the spring is compressed at the moment, the reaction force of the spring presses the limiting plate at the bottom of the locking groove to enable the limiting plate to be attached to the bottom of the locking groove, when the position of the nut body needs to be adjusted, the nut body needs to be rotated, at the moment, the limiting plate rotates together with the nut body, and the limiting plate is in clearance fit with the sealing groove, at the moment, after the limiting plate compresses the spring, the limiting plate contacts with threads on the bolt until the limiting plate is placed in the next sealing groove, and the spring rebounds to enable the limiting plate to be attached to the locking groove again; the advantage that sets up like this is spacing with the locking groove, can effectually prevent that the nut body from taking place to rotate, and then prevent that the nut body from taking place not hard up, can guarantee that the nut body is difficult for not hard up can also rotate the nut body when motionless spacing end cap, and it is more convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model.

FIG. 2 is a second schematic diagram of the structure of the present utility model.

Fig. 3 is a front view of the present utility model.

Fig. 4 is an enlarged view of a portion of fig. 1a of the present utility model.

In the figure, a 101-nut body, a 102-bolt, a 103-locking groove, a 104-limiting plate, a 105-limiting plug, a 106-locking hole, a 107-spring, a 108-first mounting protrusion, a 109-second mounting protrusion, a 110-cross-shaped slot, a 111-first guide surface and a 112-second guide surface.

Detailed Description

The present utility model is further described below in conjunction with embodiments, which are merely some, but not all embodiments of the present utility model. Based on the embodiments of the present utility model, other embodiments that may be used by those of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

Example 1

Referring to fig. 1-4, the embodiment discloses an anti-falling nut, which comprises a nut body 101, wherein the nut body 101 is used for being in threaded fit with a bolt 102; the nut body 101 is provided with a locking component;

the bolt 102 is provided with a plurality of locking grooves 103, and the locking grooves 103 are used for being matched with the locking assembly;

the locking assembly comprises a limiting plate 104, a limiting plug 105 and a locking hole 106 arranged on the nut body 101, wherein the limiting plate 104 is arranged in the locking groove 103, external threads are arranged on the outer surface of the limiting plug 105, internal threads are arranged in the locking hole 106, the locking hole 106 is used for being detachably connected with the limiting plug 105, a spring 107 is arranged between the limiting plug 105 and the limiting plate 104, one end of the spring 107 is fixedly connected with the limiting plate 104, and the other end of the spring 107 is rotationally connected with the limiting plug 105;

the utility model mainly comprises a nut body 101, wherein the nut body 101 is used for being in threaded fit with a bolt 102; the nut body 101 is provided with a locking component; in the actual use process, a worker cooperates the nut body 101 with the bolt 102, after the nut body 101 is matched with the bolt 102, the worker installs the spring 107 between the limiting plate 104 and the limiting plug 105, then adjusts the direction of the limiting plate 104 to enable the direction of the limiting plate 104 to correspond to the direction of the locking groove 103, then screws the limiting plug 105 into the locking hole 106, at the moment, the spring 107 is compressed, the reaction force of the spring 107 presses the limiting plate 104 on the bottom of the locking groove 103 to enable the limiting plate 104 to be attached to the bottom of the locking groove, when the position of the nut body 101 needs to be adjusted, the nut body 101 needs to be rotated, at the moment, the limiting plate 104 is in clearance fit with the sealing groove due to the fact that the limiting plate 104 rotates along with the nut body 101, at the moment, after the limiting plate 104 compresses the spring 107, the limiting plate 104 contacts with the threads on the bolt 102 until the limiting plate 104 is placed in the next sealing groove, the spring 107 rebounds, and the limiting plate 104 is attached to the locking groove 103 again; the advantage that sets up like this is that limiting plate 104 and locking groove 103 form spacingly, can prevent effectively that nut body 101 from taking place to rotate, and then prevent nut body 101 from taking place not hard up, can guarantee that nut body 101 is difficult not hard up can also rotate nut body 101 when not moving spacing end cap 105, and it is more convenient to use.

In this embodiment, a guiding and limiting groove is disposed in the lock hole 106, and the limiting plate 104 is slidably matched with the guiding and limiting groove, and the main purpose of the guiding and limiting groove is to prevent the limiting plate 104 from rotating when the limiting plug 105 rotates.

In some embodiments, a first mounting protrusion 108 is disposed on the limiting plate 104, a second mounting protrusion 109 is disposed at an end of the limiting plug 105, the spring 107 is disposed between the first mounting protrusion 108 and the second mounting protrusion 109, the spring 107 is sleeved on the first mounting protrusion 108 and the second mounting protrusion 109, one end of the spring 107 is fixedly connected with the first mounting protrusion 108, and the other end of the spring 107 is rotatably connected with the limiting plug 105.

The purpose of the first mounting projection 108 and the second mounting projection 109 is to better mount the spring 107 during actual use.

In some embodiments, the number of locking grooves 103 is two, three or four, and as an alternative embodiment, in this embodiment, four locking grooves 103 are provided, and four locking groove 103 arrays are provided on the bolt 102.

In some embodiments, the limiting plug 105 is provided with a cross slot 110, and the purpose of the cross slot 110 is to facilitate matching with a cross screwdriver, and when in use, a worker holds the cross screwdriver so that the central axis of the cross screwdriver is collinear with the central axis of the cross slot 110, and then inserts the screwdriver into the cross slot 110.

In some embodiments, the spring 107 is a strong spring 107, and the purpose of using the strong spring 107 is to increase the reaction force of the limiting plate 104 against the spring 107, so that the limiting plate 104 can more stably engage with the locking groove 103.

In some embodiments, a non-slip mat is disposed in the locking groove 103, and the purpose of the non-slip mat is to increase the friction force of the limiting plate 104, so that the matching relationship between the limiting plate 104 and the locking groove 103 is more stable.

In some embodiments, the cleat is a rubber cleat that can create a high friction with the stop plate 104.

Example two

Referring to fig. 1-4, this embodiment is further optimized based on the first embodiment, in this embodiment, a first guiding surface 111 is disposed on the locking slot 103, and a second guiding surface 112 is disposed on the limiting plate 104, where the first guiding surface 111 and the second guiding surface 112 have the same inclination.

In the actual use process, in order to make the limiting plate 104 be more easily disengaged from the locking groove 103, the first guide surface 111 is arranged to be matched with the second guide surface 112, and when the nut body 101 is screwed, the limiting plate 104 is disengaged from the locking groove 103 along with the rotation of the nut body 101 after the first guide surface 111 is attached to the second guide surface 112.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An anti-drop nut comprises a nut body (101), wherein the nut body (101) is used for being in threaded fit with a bolt (102); the method is characterized in that: a locking component is arranged on the nut body (101);

the bolt (102) is provided with a plurality of locking grooves (103), and the locking grooves (103) are used for being matched with the locking assembly;

the locking assembly comprises a limiting plate (104), a limiting plug (105) and a locking hole (106) arranged on the nut body (101), wherein the limiting plate (104) is arranged in the locking groove (103), external threads are arranged on the outer surface of the limiting plug (105), internal threads are arranged in the locking hole (106), the locking hole (106) is used for being detachably connected with the limiting plug (105), a spring (107) is arranged between the limiting plug (105) and the limiting plate (104), one end of the spring (107) is fixedly connected with the limiting plate (104), and the other end of the spring is rotationally connected with the limiting plug (105).

2. The anti-drop nut as claimed in claim 1, wherein: be provided with first installation arch (108) on limiting plate (104), the tip of spacing end cap (105) is provided with second installation arch (109), is provided with between first installation arch (108) and second installation arch (109) spring (107), spring (107) cover are established on first installation arch (108) and second installation arch, spring (107) one end and first installation arch (108) fixed connection, the other end and the spacing end cap (105) of spring (107) rotate to be connected.

3. The anti-drop nut as claimed in claim 1, wherein: the number of the locking grooves (103) is two, three or four.

4. The anti-drop nut as claimed in claim 1, wherein: a cross slot (110) is arranged on the limiting plug (105).

5. The anti-drop nut as claimed in claim 1, wherein: the spring (107) is a strong spring.

6. The anti-drop nut as claimed in claim 1, wherein: an anti-slip pad is arranged in the locking groove (103).

7. The drop nut as claimed in claim 6, wherein: the anti-slip pad is a rubber anti-slip pad.