CN213575086U

CN213575086U - Fastener assembly capable of preventing falling off

Info

Publication number: CN213575086U
Application number: CN202022579940.4U
Authority: CN
Inventors: 刘楠
Original assignee: Wicken Tianjin Machinery Parts Co ltd
Current assignee: Wicken Tianjin Machinery Parts Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-06-29
Anticipated expiration: 2030-11-10

Abstract

The utility model discloses a prevent fastener component that drops, concretely relates to fastener component technical field, including the bolt body, bolt body outer peripheral face top is connected with fixed disc, bolt body outer peripheral face middle part cover is equipped with movable disc, activity disc both sides all run through and are provided with the screw, just activity disc bottom is connected with the annular chamber, annular chamber inner chamber top activity is provided with four pivots, four the pivot outer peripheral face all is connected with the pawl, the annular chamber inner chamber is connected with four risers. The utility model discloses a nut body drives annular chamber and activity disc rebound simultaneously for fixed disc and activity disc and two components paste tightly mutually, all twist two screws and realize fixed with the activity disc in the component of bottom, and ratchet anticlockwise rotation is avoided to four pawls, and then avoids nut body anticlockwise rotation, thereby avoids bolt body and nut body not hard up, drops.

Description

Fastener assembly capable of preventing falling off

Technical Field

The utility model relates to a fastener subassembly technical field, concretely relates to prevent fastener subassembly that drops.

Background

The fastener is also called a standard part in the market, is a general name of a type of mechanical parts adopted when two or more parts (or components) are fastened and connected into a whole, and is characterized by various varieties and specifications, different performance and purposes, extremely high standardization, serialization and universalization degrees, the fastener is a mechanical basic part which is most widely applied, the demand is very large, and the fasteners which are used more in the market at present are bolts and nuts.

The prior art has the following defects: the existing bolt and nut are easy to loosen and even fall off after being used for a long time, and in some important occasions, irreparable loss can be caused, so that a bolt and nut fastener capable of preventing the fall off is needed at present.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a prevent fastener subassembly that drops, drive annular chamber and activity disc rebound simultaneously through the nut body, make fixed disc and activity disc paste tightly mutually with two components, all twist two screws and realize fixing the activity disc in the component of bottom, ratchet anticlockwise rotation is avoided to four pawls, and then avoid nut body anticlockwise rotation, thereby avoid bolt body and nut body not hard up, drop, after using for a long time with solving current bolt and nut, it is not hard up to appear easily, the condition that drops even, in some important occasions, can cause the problem of irreparable loss.

In order to achieve the above object, the embodiment of the present invention provides the following technical solutions: the utility model provides a prevent fastener subassembly that drops, includes the bolt body, bolt body outer peripheral face top is connected with fixed disc, bolt body outer peripheral face middle part cover is equipped with movable disc, activity disc both sides all run through and are provided with the screw, just activity disc bottom is connected with the annular chamber, annular chamber inner chamber top activity is provided with four pivots, four the pivot outer peripheral face all is connected with the pawl, the annular chamber inner chamber is connected with four risers, four all be connected with the spring between riser and the pawl that corresponds the position, bolt body outer peripheral face bottom threaded connection has the nut body, nut body top is connected with the ratchet.

Further, a rubber pad is fixedly arranged at the bottom of the fixed disc.

Furthermore, counter bores are fixedly arranged on two sides of the bottom of the movable disc, and the two screws respectively penetrate through the counter bores in the corresponding positions.

And further, the joints of the four rotating shafts and the annular cavity are provided with bearings, and the four rotating shafts are rotatably connected with the annular cavity through the bearings at the corresponding positions.

Furthermore, a round hole is fixedly formed in the top of the movable disc, and the diameter of the round hole is larger than that of a threaded rod at the bottom of the bolt body.

Further, a regular hexagonal hole is fixedly formed in the top of the bolt body.

The embodiment of the utility model provides a have following advantage:

through inserting the ratchet to the annular chamber, make four pawl card in two ratchets that the ratchet is adjacent, clockwise rotation nut body, under four pawl spacing effects, the nut body drives annular chamber and activity disc rebound simultaneously, when the nut body rotates to fixed disc and activity disc and pastes tightly with the component homogeneous phase that corresponds the position, stop rotating the nut body, all twist two screws in the component to the bottom, realize being connected the component of activity disc and bottom through two screws, and then realize fixing the activity disc, thereby realize fastening two components through bolt body and nut body, under the limiting displacement of four pawls, avoid ratchet anticlockwise rotation, and then avoid nut body anticlockwise rotation, thereby avoid bolt body and nut body not hard up, drop.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a bottom view of the ring cavity of the present invention.

Fig. 3 is a partial structural sectional view of the movable disk of the present invention.

Fig. 4 is an enlarged view of a portion a of fig. 2 according to the present invention.

Fig. 5 is a top view of the partial structure of the ratchet and nut body of the present invention.

In the figure: 1. a bolt body; 2. fixing the disc; 3. a movable disc; 4. a screw; 5. an annular cavity; 6. a rotating shaft; 7. a pawl; 8. a vertical plate; 9. a spring; 10. a nut body; 11. a ratchet wheel; 12. a rubber pad; 13. and a bearing.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings 1-5 in the specification, the fastener assembly for preventing falling comprises a bolt body 1, wherein a fixed disc 2 is connected to the top of the outer peripheral surface of the bolt body 1, a movable disc 3 is sleeved in the middle of the outer peripheral surface of the bolt body 1, screws 4 are arranged on two sides of the movable disc 3 in a penetrating mode, an annular cavity 5 is connected to the bottom of the movable disc 3, four rotating shafts 6 are movably arranged at the top of the inner cavity of the annular cavity 5, pawls 7 are connected to the outer peripheral surfaces of the rotating shafts 6, four vertical plates 8 are connected to the inner cavity of the annular cavity 5, springs 9 are connected between the vertical plates 8 and the pawls 7 corresponding to the positions, a nut body 10 is in threaded connection with the bottom of the outer peripheral surface of the bolt body.

Further, the bottom of the fixed disc 2 is fixedly provided with a rubber pad 12, and under the action of the rubber pad 12, relative sliding between the top component and the fixed disc 2 is avoided, so that the fixing effect is further improved.

Furthermore, counter bores are fixedly arranged on two sides of the bottom of the movable disc 3, and the two screws 4 penetrate through the counter bores in corresponding positions respectively, so that nuts of the two screws 4 can sink conveniently.

Further, four bearings 13 are arranged at the joints of the rotating shafts 6 and the annular cavity 5, and the rotating shafts 6 are rotatably connected with the annular cavity 5 through the bearings 13 at the corresponding positions, so that the four pawls 7 can rotate conveniently.

Further, a round hole is fixedly formed in the top of the movable disc 3, the diameter of the round hole is larger than that of a threaded rod at the bottom of the bolt body 1, and the movable disc 3 can move up and down conveniently.

Further, regular hexagon holes are fixedly formed in the top of the bolt body 1, and rotation of the bolt is facilitated.

The implementation scenario is specifically as follows: when two components are connected, a threaded rod of a bolt penetrates through the two components, a ratchet wheel 11 is inserted into an annular cavity 5, four pawls 7 are clamped in two adjacent ratchets of the ratchet wheel 11, a nut body 10 is rotated clockwise, four springs 9 enable the four pawls 7 to limit the ratchet wheel 11, under the limiting action of the four pawls 7, the nut body 10 drives the annular cavity 5 and a movable disc 3 to move upwards simultaneously, when the nut body 10 rotates until a fixed disc 2 and the movable disc 3 are tightly attached to the components at corresponding positions, the nut body 10 stops rotating, two screws 4 are screwed into the components at the bottom (the components at the bottom are fixed, the components at the top are movable, the components at the top are connected with the components at the bottom through fasteners), the movable disc 3 is connected with the components at the bottom through the two screws 4, and then realize fixing movable disc 3, thereby realize fastening two components through bolt body 1 and nut body 10, under the effect of movable disc 3 and fixed disc 2, the fixed area is bigger, fixed effect is better, simultaneously under the effect of rubber pad 12, avoid relative slip between the component at top and fixed disc 2, further improve fixed effect, under the limiting displacement of four pawls 7, avoid ratchet 11 anticlockwise rotation, and then avoid nut body 10 anticlockwise rotation, thereby avoid bolt body 1 and nut body 10 to become flexible, drop, this embodiment has specifically solved the current bolt and nut that exists among the prior art and has used the back for a long time, the easy appearance is become flexible, the condition that drops even, in some important occasions, can cause the problem of irrecoverable loss.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A fastener subassembly that prevents to drop, includes bolt body (1), its characterized in that: bolt body (1) outer peripheral face top is connected with fixed disc (2), bolt body (1) outer peripheral face middle part cover is equipped with activity disc (3), activity disc (3) both sides all run through and are provided with screw (4), just activity disc (3) bottom is connected with annular chamber (5), annular chamber (5) inner chamber top activity is provided with four pivots (6), four pivot (6) outer peripheral face all is connected with pawl (7), annular chamber (5) inner chamber is connected with four riser (8), four all be connected with spring (9) between riser (8) and pawl (7) that correspond the position, bolt body (1) outer peripheral face bottom threaded connection has nut body (10), nut body (10) top is connected with ratchet (11).

2. A drop-resistant fastener assembly as claimed in claim 1, wherein: the bottom of the fixed disc (2) is fixedly provided with a rubber pad (12).

3. A drop-resistant fastener assembly as claimed in claim 1, wherein: counter bores are fixedly arranged on two sides of the bottom of the movable disc (3), and the two screws (4) penetrate through the counter bores in corresponding positions respectively.

4. A drop-resistant fastener assembly as claimed in claim 1, wherein: the connecting parts of the four rotating shafts (6) and the annular cavity (5) are provided with bearings (13), and the four rotating shafts (6) are rotatably connected with the annular cavity (5) through the bearings (13) in corresponding positions.

5. A drop-resistant fastener assembly as claimed in claim 1, wherein: the top of the movable disc (3) is fixedly provided with a round hole, and the diameter of the round hole is larger than that of the threaded rod at the bottom of the bolt body (1).

6. A drop-resistant fastener assembly as claimed in claim 1, wherein: the top of the bolt body (1) is fixedly provided with a regular hexagonal hole.