Anti-loosening bolt fastener for engine

Abstract

The utility model relates to the technical field of bolt fasteners, and discloses an anti-loosening bolt fastener for an engine, which comprises a bolt body, the bolt body is in threaded connection with a fastening nut, the inner wall of the fastening nut is fixedly provided with a mounting plate, the fastening nut is provided with a brake mechanism, and the brake mechanism is fixedly connected with the mounting plate. A clamping mechanism is arranged in the fastening nut, the stopping mechanism comprises a sliding block, and the sliding block is used for driving the connecting rod to slide on the mounting plate. According to the anti-loosening bolt fastener for the engine, the end of the supporting rod is extruded through the push rod in the braking mechanism, the sliding block can drive the braking block at the end of the connecting rod to extrude the outer wall of the bolt body, and meanwhile, the bolt body cannot rotate and is prevented from loosening through extrusion and attachment of the fastening nut and the installation position; and the clamping ring is clamped on the side part of the clamping block, so that the bolt body can be stably clamped by the stopping block.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt fastener technical field, concretely is a bolt fastener for engine of anti loosening. BACKGROUND

[0002] The connecting mode of bolt and nut cap is the most basic form in fastening connector, is widely used in mechanical equipment, car, train, aerospace and other fields, especially for engineering machinery assembly factory, the fastener of bolt and nut cap has the advantages of convenient standardization mass production, simple structure, low cost, convenient installation, easy disassembly etc.But in the actual use process, because of vibration, high and low load change, impact or long-term in working condition, the nut cap is extremely easy to produce loosening phenomenon, directly influences the running performance of equipment and reduces its safety reliability, light influences the normal work of equipment and causes economic loss, heavy will influence personal safety.

[0003] In the process of engine operation, the existing bolt fastener is prone to looseness in the process of use, and once the bolt loosens, the stability of the engine will be affected, which may cause damage to the engine and cause dangerous accidents. In view of this, we need a bolt fastener for engine that can prevent loosening. UTILITY MODEL CONTENTS

[0004] The utility model discloses a bolt fastener for engine that can prevent loosening to solve the problems in the above background.

[0005] To achieve the above object, the utility model provides the following technical scheme: a bolt fastener for engine that can prevent loosening, including bolt body, the bolt body is connected with the fastening nut on the screw thread, the inner wall of fastening nut is fixedly installed with the mounting plate, the fastening nut is provided with the stop mechanism, the inside of fastening nut is provided with the clamping mechanism.

[0006] The stop mechanism includes:

[0007] The sliding block is used to drive the connecting rod to slide on the mounting plate.

[0008] The connecting rod is used to install the stop block.

[0009] The stop block is used to stop the bolt body.

[0010] Preferably, the sliding block is in sliding connection with the outer wall of the mounting plate, the outer wall of the sliding block is fixedly connected with one end of the connecting rod, the other end of the connecting rod is fixedly installed with the stop block, and the outer wall of the bolt body is extruded by the stop block, so that the bolt body cannot rotate to prevent loosening.

[0011] Preferably, the inside of the fastening nut is slid through a push rod, one end of the push rod is hinged to one end of a support rod, the other end of the support rod is hinged to a sliding block, a bearing spring is sleeved on the outer wall of the push rod, one end of the bearing spring is fixedly connected with the outer wall of the push rod, the other end of the bearing spring is fixedly connected with the inner wall of the fastening nut, and the elastic force of the bearing spring can drive the push rod to reset.

[0012] Preferably, the end of the push rod is fixedly provided with a snap ring, the outer wall of the fastening nut is fixedly provided with an elastic plate, the outer wall of the elastic plate is fixedly provided with a clamping block, the side wall of the clamping block is in an arc shape, and the clamping block is located at the side of the snap ring.

[0013] Preferably, the clamping mechanism comprises a rotating rod, the rotating rod is rotationally connected with the inner wall of the fastening nut, an extrusion plate is fixedly installed on the outer wall of the rotating rod, the outer wall of the extrusion plate is extruded by the extrusion rod on the outer wall of the push rod, the extrusion plate drives the extrusion block to extrude the outer wall of the bolt body, an extrusion block is fixedly installed on the outer wall of the extrusion plate, an arc-shaped groove is formed in the extrusion block, the bolt body cannot be reversely rotated through the arc-shaped groove in the extrusion block, one end of the rotating rod is fixedly connected with a torsion spring, and the other end of the torsion spring is fixedly connected with the inner wall of the fastening nut.

[0014] Preferably, the outer wall of the push rod is fixedly provided with an extrusion rod, and the end of the extrusion rod is located at the side of the extrusion plate.

[0015] Compared with the prior art, the utility model provides a screw fastener for engine with anti-loosening function, which has the following advantages:

[0016] 1. The screw fastener for engine with anti-loosening function extrudes the end of the support rod through the push rod in the stop mechanism, extrudes the outer wall of the bolt body through the stop block at the end of the connecting rod driven by the sliding block, and extrudes the fastening nut and the mounting part, so that the bolt body cannot be rotated and loosened.

[0017] 2. The screw fastener for engine with anti-loosening function extrudes the outer wall of the extrusion plate through the extrusion rod in the clamping mechanism, extrudes the outer wall of the bolt body through the extrusion block driven by the extrusion plate, and reversely rotates the bolt body through the arc-shaped groove in the extrusion block, thereby further preventing loosening. BRIEF DESCRIPTION OF DRAWINGS

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

[0019] Figure 2 It is part of the utility model overhead structure schematic diagram;

[0020] Figure 3 It is part of the utility model side structure schematic diagram;

[0021] Figure 4 It is the utility model Figure 1 A structure amplification schematic diagram;

[0022] Figure 5 It is the utility model Figure 2 B structure amplification schematic diagram;

[0023] Figure 6 It is the utility model Figure 3 C structure amplification schematic diagram.

[0024] In the figure: 1, bolt body;2, fastening nut;3, mounting plate;4, stop mechanism;41, sliding block;42, connecting rod;43, stop block;44, push rod;45, support rod;46, bearing spring;47, snap ring;48, elastic plate;49, clamping block;5, clamping mechanism;51, rotating rod;52, extrusion plate;53, extrusion block;54, torsional spring;55, extrusion rod. Specific implementation

[0025] As Figures 1-6 Indicated, the utility model provides a kind of technical scheme: a loosening-preventable bolt fastener for engine, including bolt body 1, bolt body 1 is threadedly connected with fastening nut 2, and fastening nut 2 is fixedly installed with mounting plate 3 on its inner wall, and fastening nut 2 is provided with stop mechanism 4, and the inside of fastening nut 2 is provided with clamping mechanism 5.

[0026] In the embodiment, stop mechanism 4 is provided on fastening nut 2, the end of support rod 45 is extruded by push rod 44 in stop mechanism 4, sliding block 41 can be extruded to the outer wall of bolt body 1 by stop block 43 of the end of connecting rod 42, while fastening nut 2 is extruded and fitted with mounting, bolt body 1 cannot be rotated to prevent loosening, and clamping ring 47 is clamped in the side of clamping block 49, stop block 43 can be stably clamped to bolt body 1.

[0027] In the embodiment, clamping mechanism 5 is provided in the inside of fastening nut 2, the outer wall of extrusion plate 52 is extruded by extrusion rod 55 in clamping mechanism 5, extrusion plate 52 can be extruded to the outer wall of bolt body 1 by extrusion block 53, while the arc-shaped groove provided on extrusion block 53 can prevent bolt body 1 from being reversely rotated, further preventing loosening.

[0028] The stop mechanism 4 comprises a sliding block 41, which is in sliding connection with the outer wall of the mounting plate 3. The outer wall of the sliding block 41 is fixedly connected with one end of a connecting rod 42. The other end of the connecting rod 42 is fixedly provided with a stop block 43. The stop block 43 is used to extrude the outer wall of the bolt body 1, so that the bolt body 1 cannot rotate and loosen. A push rod 44 is slidably arranged in the fastening nut 2. The end of the push rod 44 is hingedly connected with one end of a supporting rod 45. The other end of the supporting rod 45 is hingedly connected with the sliding block 41. The push rod 44 is used to extrude the end of the supporting rod 45, so that the sliding block 41 drives the stop block 43 at the end of the connecting rod 42 to move towards the bolt body 1. A bearing spring 46 is sleeved on the outer wall of the push rod 44. One end of the bearing spring 46 is fixedly connected with the outer wall of the push rod 44. The other end of the bearing spring 46 is fixedly connected with the inner wall of the fastening nut 2. The elastic force of the bearing spring 46 can drive the push rod 44 to reset. The end of the push rod 44 is fixedly provided with a clasp ring 47. The outer wall of the fastening nut 2 is fixedly provided with an elastic plate 48. The outer wall of the elastic plate 48 is fixedly provided with a clamping block 49. The side wall of the clamping block 49 is in arc shape. The clamping block 49 is located at the side of the clasp ring 47. The clasp ring 47 is clamped at the side of the clamping block 49, so that the stop block 43 can stably clamp the bolt body 1.

[0029] The clamping mechanism 5 comprises a rotating rod 51, which is in rotating connection with the inner wall of the fastening nut 2. The outer wall of the rotating rod 51 is fixedly provided with an extrusion plate 52. The push rod 44 drives the extrusion rod 55 on the outer wall to extrude the outer wall of the extrusion plate 52, so that the extrusion plate 52 drives the extrusion block 53 to extrude the outer wall of the bolt body 1. The outer wall of the extrusion plate 52 is fixedly provided with the extrusion block 53. The extrusion block 53 is provided with an arc-shaped groove. The arc-shaped groove of the extrusion block 53 can prevent the bolt body 1 from rotating in the opposite direction and further prevent loosening. The outer wall of the rotating rod 51 is fixedly connected with one end of a torsional spring 54. The other end of the torsional spring 54 is fixedly connected with the inner wall of the fastening nut 2. The outer wall of the push rod 44 is fixedly provided with an extrusion rod 55. The end of the extrusion rod 55 is located at the side of the extrusion plate 52.

[0030] In this embodiment, first, the fastening nut 2 is attached to the upper part of the bolt body 1 by rotating, and then the motor mounting part is fixed by screwing the fastening nut 2. After tightening, the bolt body 1 drives the fastening nut 2 to be pressed and attached to the mounting part. At this time, the push rod 44 is pushed into the fastening nut 2, and then the end of the support rod 45 is pressed by the push rod 44. The sliding block 41 drives the stop block 43 at the end of the connecting rod 42 to move in the direction of the bolt body 1 through the hinge between the support rod 45 and the sliding block 41, and then the stop block 43 presses the outer wall of the bolt body 1. At the same time, the fastening nut 2 is pressed and attached to the mounting part, so that the bolt body 1 cannot rotate to prevent loosening. At the same time, the extrusion rod 55 on the outer wall is pressed against the outer wall of the extrusion plate 52 by the push rod 44, so that the extrusion plate 52 drives the extrusion block 53 to press the outer wall of the bolt body 1. The bolt body 1 cannot be reversed by the arc-shaped groove on the extrusion block 53, further preventing loosening. At the same time, the arc surface of the clamping block 49 is pressed by the snap ring 47, so that the clamping block 49 drives the elastic plate 48 to deform. Finally, the snap ring 47 is clamped on the side of the clamping block 49, so that the stop block 43 stably clamps the bolt body 1. When the bolt body 1 needs to be disassembled, the clamping block 49 is released from the limit by pushing the elastic plate 48, and then the push rod 44 is reset by the elastic force of the bearing spring 46, and then the disassembly work of the bolt body 1 is completed.

[0031] The above is a detailed description of the general utility model, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.

Claims

1. A bolt fastener for an engine that prevents loosening, comprising a bolt body (1), characterized in that: The bolt body (1) is threaded with a fastening nut (2), and an mounting plate (3) is fixedly installed on the inner wall of the fastening nut (2). The fastening nut (2) is provided with a braking mechanism (4), and the fastening nut (2) is provided with a snap-fit ​​mechanism (5). The braking mechanism (4) includes: A slider (41) is used to drive the connecting rod (42) to slide on the mounting plate (3); A connecting rod (42) is used to install the braking block (43); A stop block (43) is used to stop the bolt body (1).

2. The anti-loosening bolt fastener for an engine according to claim 1, characterized in that: The slider (41) is slidably connected to the outer wall of the mounting plate (3), the outer wall of the slider (41) is fixedly connected to one end of the connecting rod (42), and a stop block (43) is fixedly installed on the other end of the connecting rod (42).

3. The anti-loosening bolt fastener for an engine according to claim 2, characterized in that: A push rod (44) slides through the inside of the fastening nut (2). The end of the push rod (44) is hinged to one end of the support rod (45), and the other end of the support rod (45) is hinged to the slider (41). A bearing spring (46) is sleeved on the outer wall of the push rod (44). One end of the bearing spring (46) is fixedly connected to the outer wall of the push rod (44), and the other end of the bearing spring (46) is fixedly connected to the inner wall of the fastening nut (2).

4. The anti-loosening bolt fastener for an engine according to claim 3, characterized in that: A retaining ring (47) is fixedly installed at the end of the push rod (44), an elastic plate (48) is fixedly installed on the outer wall of the fastening nut (2), a retaining block (49) is fixedly installed on the outer wall of the elastic plate (48), the side wall of the retaining block (49) is set in an arc shape, and the retaining block (49) is located on the side of the retaining ring (47).

5. The anti-loosening bolt fastener for an engine according to claim 4, characterized in that: The snap-fit ​​mechanism (5) includes a rotating rod (51), which is rotatably connected to the inner wall of the fastening nut (2). A pressing plate (52) is fixedly installed on the outer wall of the rotating rod (51), and a pressing block (53) is fixedly installed on the outer wall of the pressing plate (52). An arc-shaped groove is provided on the pressing block (53). The outer wall of the rotating rod (51) is fixedly connected to one end of a torsion spring (54), and the other end of the torsion spring (54) is fixedly connected to the inner wall of the fastening nut (2).

6. The anti-loosening bolt fastener for an engine according to claim 5, characterized in that: A pressing rod (55) is fixedly installed on the outer wall of the push rod (44), and the end of the pressing rod (55) is located on the side of the pressing plate (52).

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