Locking screw fixing screw

Abstract

The utility model discloses a locking screw fixing screw, which relates to the technical field of screws and comprises a mounting disc and a screw head fixed on the upper surface of the mounting disc, a screw rod is fixed on the lower surface of the mounting disc, an annular groove is arranged at the outer end of the mounting disc, and a first locking structure is fixed on the lower surface of the mounting disc. The first anti-loosening structure is located on the outer side of the screw rod, a cross hole is formed in the screw head, a mounting ring is mounted at the outer end of the mounting disc, rectangular grooves are formed in the mounting ring at equal angles, a second anti-loosening structure is fixed to the lower surface of the mounting ring, and a connecting ring is integrally connected to the inner end of the mounting ring. The connecting ring is located in the annular groove, the first anti-loosening structures are fixed to the lower surface of the mounting disc at equal angles, and the second anti-loosening structures are fixed to the lower surface of the mounting ring at equal angles. According to the anti-loose screw fixing screw, the anti-loose effect is improved through the first anti-loose structure and the second anti-loose structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw technical field, concretely is a kind of anti-loose screw fixed screw. BACKGROUND

[0002] When connecting between workpieces, it can be fixed by screw, in working process, some workpieces will generate larger vibration, affect the stability of screw connection, long-term use screw will also appear loose condition, thereby needing to use anti-loose screw to connect workpiece, avoid accident occurrence;

[0003] A kind of anti-loose screw is disclosed in Chinese utility model patent with authorized announcement No.CN207554536U, including: screw head, screw rod arranged on the screw head and the fixedly arranged anti-loose structure on the connecting surface of the screw head connecting the screw rod;The anti-loose structure is: the barb that is upturned from the connecting surface;When the screw rod is rotated along the thread on the screw rod and is rotated out from the installation object, the anti-loose structure is rotated into the installation object and is embedded with the installation object;According to the technical scheme provided in the embodiment of the utility model, after the anti-loose screw is installed on the installation object, when the anti-loose screw is rotated out, or when the anti-loose screw is removed from the installation object, the anti-loose structure will be rotated into the installation object, to prevent the anti-loose screw from loosening or being removed;

[0004] In combination with existing scheme and actual production and processing, the existing anti-loose screw fixed screw avoids screw loosening by anti-loose structure such as barb structure, only prevents screw loosening by a group of anti-loose structures, and anti-loose effect needs to be improved, therefore, we propose a kind of anti-loose screw fixed screw to solve the problems raised in the above. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of anti-loose screw fixed screw to solve the problems raised in the above background art that the existing anti-loose screw fixed screw avoids screw loosening by anti-loose structure such as barb structure, only prevents screw loosening by a group of anti-loose structures, and anti-loose effect needs to be improved.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of anti-loose screw fixed screw, including installation disc and the fixed screw head portion on its upper surface, the lower surface of installation disc is fixed with screw rod:

[0007] The outer end of the installation disc is provided with annular groove, the lower surface of the installation disc is fixed with first anti-loose structure, the first anti-loose structure is located on the outer side of screw rod, the inside of the screw head portion is provided with cross hole;

[0008] The outer end of the mounting disc is provided with a mounting ring, a rectangular slot is equiangularly arranged in the inner portion of the mounting ring, the lower surface of the mounting ring is fixed with a second anti-loosening structure, and the inner end of the mounting ring is integrally connected with a connecting ring.

[0009] By the first anti-loosening structure and the second anti-loosening structure, the anti-loosening effect is improved.

[0010] Preferably, the connecting ring is located in the inner portion of the annular slot, and the mounting ring is rotationally connected with the mounting disc.

[0011] Preferably, the first anti-loosening structure is equiangularly fixed on the lower surface of the mounting disc.

[0012] Preferably, the second anti-loosening structure is equiangularly fixed on the lower surface of the mounting ring.

[0013] Preferably, the lower surface of the mounting ring is flush with the lower surface of the mounting disc.

[0014] Compared with the prior art, the anti-loosening screw fixed screw has the advantages that the first anti-loosening structure and the second anti-loosening structure improve the anti-loosening effect.

[0015] 1. The tool is inserted into the inner portion of the cross-shaped hole, the rod tool is inserted into the inner portion of the rectangular slot, two hands are used to rotate the mounting disc and the mounting ring respectively, the first anti-loosening structure and the second anti-loosening structure are screwed into the workpiece, and the anti-loosening effect is improved by the two groups of anti-loosening structures.

[0016] The inner end of the mounting ring is integrally connected with the connecting ring, the outer end of the mounting disc is provided with an annular slot, the connecting ring is located in the inner portion of the annular slot, the mounting ring and the mounting disc form a rotating structure, and when the first anti-loosening structure and the second anti-loosening structure are screwed in different rotating directions, the mounting disc and the mounting ring are reversely rotated respectively.

[0017] 2. The lower surface of the mounting ring is flush with the lower surface of the mounting disc, after the screw is installed, the lower surfaces of the mounting ring and the mounting disc are uniformly and closely attached to the outer surface of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view axial side structural schematic view of the utility model;

[0019] Figure 2 It is a bottom view axial side structural schematic view of the utility model;

[0020] Figure 3 It is an axial side sectional structural schematic view of the utility model;

[0021] Figure 4 It is an axial side structural schematic view of the mounting ring of the utility model;

[0022] Figure 5The utility model discloses a mounting disc shaft side structure schematic diagram.

[0023] In the drawing: 1, mounting disc; 2, annular groove; 3, first anti-loose structure; 4, screw rod; 5, screw head; 6, cross hole; 7, mounting ring; 8, rectangular groove; 9, second anti-loose structure; 10, connecting ring. DETAILED DESCRIPTION

[0024] 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 and not 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 the utility model.

[0025] Please refer to Figures 1-5 The existing anti-loose screw fixing screw avoids screw loosening through the anti-loose structure such as barb structure, only prevents screw loosening through a group of anti-loose structures, and the anti-loose effect needs to be improved. In order to solve this technical problem, the embodiment discloses the following technical content.

[0026] An anti-loose screw fixing screw, comprising a mounting disc 1, an annular groove 2, a first anti-loose structure 3, a screw rod 4, a screw head 5, a cross hole 6, a mounting ring 7, a rectangular groove 8, a second anti-loose structure 9 and a connecting ring 10.

[0027] The upper surface of the mounting disc 1 is fixed with the screw head 5, the lower surface of the mounting disc 1 is fixed with the screw rod 4, the outer end of the mounting disc 1 is provided with the annular groove 2, the lower surface of the mounting disc 1 is fixed with the first anti-loose structure 3, the first anti-loose structure 3 is located at the outer side of the screw rod 4, the inside of the screw head 5 is provided with the cross hole 6, when the screw is installed, the tool is inserted into the inside of the cross hole 6, the screw head 5, the mounting disc 1 and the screw rod 4 are rotated, the screw rod 4 is inserted into the workpiece, and the equiangular first anti-loose structure 3 is rotated into the outer end of the workpiece, and the first anti-loose structure 3 is embedded with the workpiece.

[0028] The outer end of the mounting disc 1 is provided with the mounting ring 7, the lower surface of the mounting ring 7 is flush with the lower surface of the mounting disc 1, the inside of the mounting ring 7 is provided with the equiangular rectangular groove 8, the lower surface of the mounting ring 7 is fixed with the second anti-loose structure 9, and the inner end of the mounting ring 7 is integrally connected with the connecting ring 10, and the connecting ring 10 is located in the inside of the annular groove 2.

[0029] The rod is inserted into the rectangular slot 8, one hand holds the rod, and the other hand holds the tool inserted into the cross hole 6, when the first anti-loosening structure 3 and the second anti-loosening structure 9 are rotated in the same direction, the two hands are rotated in the same direction, when the first anti-loosening structure 3 and the second anti-loosening structure 9 are rotated in different directions, the two hands are rotated in opposite directions, the first anti-loosening structure 3 and the second anti-loosening structure 9 are rotated into the workpiece, the anti-loosening effect of the two groups of anti-loosening structure strips is improved, and the stability of the screw is improved;

[0030] The above completes a series of operations of the anti-loosening screw fixed screw, and the contents not described in detail in the description belong to the prior art known to those skilled in the art.

[0031] The standard parts used in the utility model can be purchased from the market, the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here.

[0032] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or replace part of the technical features equivalently, and any modification, equivalent replacement, improvement, etc. within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A locking screw fixing screw, comprising a mounting disc (1) and a screw head (5) fixed on the upper surface thereof, and a screw rod (4) fixed on the lower surface of the mounting disc (1), characterized in that: an annular groove (2) is formed on the outer end of the mounting disc (1), a first locking structure (3) is fixed on the lower surface of the mounting disc (1), the first locking structure (3) is located on the outer side of the screw rod (4), and a cross hole (6) is formed in the interior of the screw head (5); a mounting ring (7) is mounted on the outer end of the mounting disc (1), a rectangular groove (8) is formed in the interior of the mounting ring (7) at equal angles, a second locking structure (9) is fixed on the lower surface of the mounting ring (7), and a connecting ring (10) is integrally connected to the inner end of the mounting ring (7).

2. A captive screw fastening screw according to claim 1, wherein: The connecting ring (10) is located in the annular groove (2), and the mounting ring (7) is rotationally connected to the mounting disc (1).

3. The locking screw of claim 1, wherein: The first locking structure (3) is fixed on the lower surface of the mounting disc (1) at equal angles.

4. The locking screw of claim 1 wherein: The second locking structure (9) is fixed on the lower surface of the mounting ring (7) at equal angles.

5. The locking screw of claim 1 wherein: The lower surface of the mounting ring (7) is flush with the lower surface of the mounting disc (1).

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