TWI583873B - Anti-loosening bolts - Google Patents

Description

Anti-loose bolt

The invention relates to a threaded element and, in particular, to a bolt that prevents loosening.

The screw assembly is composed of a bolt and a nut, and the bolt and the nut cooperate to fix the member to be fixed. When the screw assembly is subjected to a variable load or is often in a vibration condition, especially in the case of high vibration frequency, high voltage or high heat, it is very easy to cause slack between the bolt and the nut, so that the bolt and the nut are unpredictable. Loose, causing accidents, causing unnecessary troubles and losses. Therefore, how to design a screw joint structure that can prevent loosening has always been one of the problems that the industry wants to overcome.

In order to prevent the bolt and the nut from loosening, the inventors have developed the patent application No. 202221395, as shown in the first figure, which is provided with more than one elastic member 10 in the screw hole of the nut 12, when the bolt After being screwed into the nut 12, the elastic member 10 generates an elastic holding force between the bolt 14 and the nut 12 to prevent the bolt 14 and the nut 12 from loosening. However, this way of preventing loosening only increases the elastic contact between the bolt 14 and the nut 12, and does not achieve the effect of locking between the bolt and the nut, when encountering high vibration frequency, high voltage or high heat. In the case, there is still a chance of causing the bolt 14 or the nut 12 to come loose. In view of the above problems, the inventors have developed the present invention based on the spirit of excellence.

The main object of the present invention is to provide a bolt for preventing loosening, the bolt having at least one engaging member, and controlling the position of the at least one engaging member by a control mechanism to increase the bolting of the bolt and the nut Fastness.

The anti-loose bolt provided by the invention comprises: a head and a screw, the top end of the screw is connected to the head, and the outer peripheral surface thereof is provided with a thread; and an accommodating space is provided on the screw of the bolt And disposed along the axial direction of the screw; an opening disposed at a bottom end of the screw and communicating with the accommodating space; at least one through hole disposed on the outer circumferential surface of the screw and communicating with the accommodating space; The at least one splicing member is disposed in the through hole and is displaceable in the through hole; a control mechanism is disposed in the accommodating space of the screw, and is movable along a longitudinal direction of the accommodating space Displacement between a release position and maintaining the position at the actuating position or the release position after the displacement; when the control mechanism remains positioned at the actuating position, the latch member can be moved out of the accommodating space to make the card connector Protruding on the outer circumferential surface of the screw; when the control mechanism remains positioned in the release position, the latching member is no longer pushed, so that the latching member is moved toward the screw and is no longer exposed to the screw The outer perimeter.

Preferably, the control mechanism has a small diameter portion and a large diameter portion. When the control mechanism is kept in the actuating position, the large diameter portion resists the engaging member, the small diameter portion and the engaging member. There is a one-difference; when the control mechanism is kept positioned in the release position, the small-diameter portion is aligned with the clip, and the large-diameter portion has a difference from the clip.

Thereby, the bolt of the present invention controls the removal or removal of the clip by the control mechanism. The bolts are inserted to increase the joint strength between the bolts and the nuts, and prevent the screw joints from being loosened by high vibration frequency, high voltage or high heat.

Conventional knowledge

10‧‧‧ Elastic objects

12‧‧‧ Nuts

14‧‧‧ bolt

this invention

20‧‧‧ bolt

22‧‧‧ head

24‧‧‧ screw

26‧‧‧ thread

30‧‧‧ accommodating space

32‧‧‧ openings

34‧‧‧ Cover

35‧‧‧Perforation

36‧‧‧through hole

38‧‧‧容沟

40‧‧‧Cards

42‧‧‧ card joint

44‧‧‧Docking section

50‧‧‧Control agency

60‧‧‧ Subject

62‧‧ ‧ ribs

64‧‧‧Slope

66‧‧‧Slide

68‧‧‧Apartment

69‧‧‧ annular flange

70‧‧‧ button

72‧‧‧First ring

74‧‧‧First tooth

76‧‧‧First convex tooth

80‧‧‧ drive parts

81‧‧‧Little Trails Department

82‧‧‧The Great Trails Department

83‧‧‧ Second ring

84‧‧‧second tooth

85‧‧‧second convex teeth

86‧‧‧Bevel

87‧‧‧Receiving Department

88‧‧‧Flexible components

90‧‧‧ nuts

92‧‧‧ screw holes

94‧‧‧ 容容

In order to provide a further understanding of the objects, features and advantages of the present invention, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The first figure is a cross-sectional view of a combination of a bolt and a nut.

The second drawing is a perspective view of a bolt of a preferred embodiment of the present invention.

The third figure is a longitudinal sectional view of the bolt of the second figure.

The fourth figure is the majority of the bolts of the second figure.

The fifth figure is a partial enlarged view of the fourth figure.

The sixth figure is a cross-sectional view of the main body.

Figure 7 is a cross-sectional view showing the structure of the driving member and the button in the main body.

The eighth figure is a perspective view of the nut.

The ninth diagram is a cross-sectional view of the bolt and the nut.

The tenth figure is a cross-sectional view of the bolt and the nut being screwed together.

The eleventh figure is a sectional view taken along line 11-11 of the tenth figure.

The twelfth to fifteenth drawings show the operation of the control mechanism.

Referring to the second to fifth figures, a bolt 20 for preventing release according to a preferred embodiment of the present invention includes:

A head 22 and a screw 24 are attached to the head portion 22 at the top end thereof, and a thread 26 is provided on the outer peripheral surface thereof.

An accommodating space 30 is disposed in the screw 24 of the bolt 20 and disposed along the axial direction of the screw 24. An opening 32 is disposed at a bottom end of the screw 24 and connected to the accommodating space 30. An outer cover 34 is provided with a through hole 35 at the center thereof, and the outer cover 34 is covered by the opening 32 of the screw 24.

At least one through hole 36, the embodiment has a pair of through holes 36, which are disposed on the outer peripheral surface of the screw and are recessed inwardly along the radial direction of the screw 24 to communicate with the accommodating space. A receptacle groove 38 is disposed on the outer peripheral surface of the screw 24, and the two ends thereof are connected to the two through holes 36.

The at least one latching member 40 has a latching member 40 and is generally U-shaped. In practice, the latching member 40 can be slidable in the through hole 36. The latching member 40 can be different. The structural form is not limited to the embodiment. The latching member 40 has a latching section 42 and two latching sections 44. The two ends of the latching portion 42 are connected to the outer ends of the two latching segments 44, and each of the latching segments has an angle with the latching segment. The two insertion holes 44 are inserted into the two through holes 36 , and the inner ends thereof protrude from the accommodating space 30 . The longitudinal direction of the engaging portion 42 of the engaging member 40 has a non-perpendicular angle with the longitudinal direction of the screw 24. Preferably, the longitudinal direction of the groove 38 is parallel to the axial direction of the screw; the longitudinal direction of the engaging portion is parallel to the longitudinal direction of the screw.

a control mechanism 50 is disposed in the accommodating space 30 of the screw 24, and is displaceable along a longitudinal direction of the accommodating space 30 between an actuating position and a releasing position and is maintained at the actuating position or the release after the displacement. position.

Referring to the fourth to sixth figures, the control mechanism 50 includes: a main body 60, which is referred to as a sixth figure, is formed in a circular tubular shape, is fixed in the accommodating space 30, and has an inner circumferential surface along the axial direction of the main body A plurality of ribs 62 are arranged at equal intervals, and a slanted surface 64 is formed at a top end of each of the ribs 62. A slide 66 is formed between the adjacent two ribs 62. The plurality of abutting portions 68 are regularly disposed at the top end of the chute 66 in a manner of a chute 66. In this embodiment, each of the abutting portions 68 is inclined from the ridge 62. The face 64 extends leftward toward the other rib 62 and extends to the side wall of the other rib 62 with the same slope. This embodiment has eight ribs 62 and eight slides 66, and four abutting portions 68 arranged in a regular manner with a slide 66. An annular flange 69 is provided at the bottom end of the body 60 and extends a distance from the inner circumferential surface of the body.

It can be understood that the ribs 62, the slides 66, the abutting portions 68 and the annular flanges 69 can also be directly disposed in the accommodating space 30.

A button 70 has a first ring body 72 at its top end. The top surface of the first ring body 72 has a plurality of first tooth portions 74, and a plurality of first protruding teeth 76 are disposed on the outer peripheral surface thereof. The top end of the button 70 is inserted into the main body 60 from the bottom end of the main body 60, and the first ring body 72 is blocked by the annular flange 69 of the main body 60, and cannot be separated from the inside of the main body 60. A male tooth 76 is received in the runner 66 such that the button 70 is displaced up and down within the body 60 without angular displacement, as shown in FIG. The bottom end of the button 70 protrudes from the bottom end of the main body 60 and protrudes through the through hole 35 of the outer cover 34 of the screw 24 to the bottom end of the screw 24, but is not limited to this embodiment. The button 70 may not protrude from the bottom end of the main body 60. The user can press the button 70 with a finger or an elongated article, and the operation of the present invention can also be completed.

A driving member 80 is provided with a small diameter portion 81, a large diameter portion 82 and a receiving portion 87. The large diameter portion 82 is disposed at a bottom end of the driving member 80. The receiving portion 87 is disposed at a top end of the driving member 80. The small diameter portion 81 is located between the large diameter portion 82 and the receiving portion 87. The large diameter portion 82 and the receiving portion 87 are connected. The bottom end of the large diameter portion 82 is further provided with a second ring body 83. The top surface of the second ring body 83 has a second tooth portion 84, and the outer peripheral surface thereof is provided with a plurality of second protruding teeth 85, each of which is second. The bottom surface of the convex tooth 85 is provided with a slope 86 which can cooperate with the slope 64 of the rib 62. The second ring body 83 of the large diameter portion 82 is inserted into the main body 60 from the top end of the main body 60, and the second protruding teeth 85 are displaceable in the slide rail 266, so that the driving member 80 is displaced. It can move up and down in the accommodating space 20, as shown in the seventh figure.

An elastic member 88 is disposed in the accommodating space 30, and a top end thereof is disposed on a top wall of the accommodating space 30, and a bottom end thereof is abutted against the receiving portion 87 of the driving member 80, so that the driving member 80 is kept downward. Displacement.

When the control mechanism 50 remains positioned in the release position, the second protruding teeth 85 are received in the runners 66. When the button 70 is pressed to displace and maintain the control mechanism 50 in the actuating position, the second protruding teeth 85 move out of the slides 66, and a difference is generated between the second ridges 62 and the ridges 62. The inclined surface 86 of the bottom end of the second convex tooth 85 is in contact with the inclined surface 64 of the top end of the ridge 62, and the second convex tooth 85 is moved in by the guiding of the inclined surface 64 and the pushing of the elastic member 88. The abutting portions 68 further cause the driving member 80 to rotate. When the button 70 is pressed and the control mechanism 50 is restored and held in the release position, the second protruding teeth 85 are removed from the abutting portions 68 and again caused a difference between the ridges 62 and the ridges 62. Then, the inclined surface 86 of the bottom end of the second protruding teeth 85 is in contact with the inclined surface 64 of the top end of the protruding strip 62, and the second convex portion is guided by the guiding of the inclined surface 64 and the pushing of the elastic member 88. The teeth 85 are moved into the other slides 64 and drive the drive member 80 to rotate.

The state of use of the present invention will be described below. Referring to the eighth figure, the bolt is used in conjunction with a nut 90 having a screw hole 92. The inner wall surface of the screw hole 92 is equally spaced apart from the one or more slots 94. In this embodiment, The inner wall surface of the screw hole 92 is provided with twelve pockets 94.

Referring to the ninth figure, when the bolt 20 is connected to the nut 90, the control mechanism 50 is kept in the release position, so that the engaging portion 42 of the clip 40 is received in the receiving groove 38. So that the bolt 20 and the nut 90 are not obstructed. At this time, the elastic member 88 is abutted against the driving member 80. The driving member 80 is located at a position, and the small diameter portion 81 of the driving member 80 is Aligning the card connector 40 The two insertion sections 44 are configured to be received in the accommodating space 30, and the splicing section 42 is immersed in the accommodating groove 38. The driving member 80 is abutted by the elastic member 88 and is also pushed against the button 70, so that the first ring body 72 of the button 70 abuts against the annular flange 69 of the main body 60, and the bottom of the button 70 The end protrudes from the opening 32 of the accommodating space 30 and protrudes through the through hole 26 of the outer cover 34 to the bottom end of the screw 24. Referring to FIG. 12, each of the second protruding teeth 85 of the driving member 80 is received in the sliding passage 64 of the main body 60, so that the driving member 80 can be vertically displaced in the main body 60. When the control mechanism 50 is in the release position, each of the first tooth portions 74 of the button 70 and the second tooth portions 84 of the driving member 80 are not tightly engaged with each other, and have a gap therebetween.

Referring to the tenth and eleventh figures, when the bolt 20 and the nut 90 are screwed to the position, and any one of the slots 94 of the nut 90 is aligned with the latch 40 of the bolt 20, the button is pressed. 70, the driving portion 80 is displaced upward to another position, and the large-diameter portion 82 pushes the two insertion portions 44 of the engaging member 40 out of the accommodating space 30 to make the engaging portion of the engaging member 40 42 protrudes from the outer peripheral surface of the screw 24 and is locked in the recess 94 of the nut 90. At this time, the driving member 80 compresses the elastic member 88, and the second protruding teeth 85 move out of the sliding passages 64 of the main body 60, and generate a difference with the convex strips 62; The one tooth portion 74 and the second tooth portions 84 of the driving portion 80 are in close contact with each other, and the driving portion 80 is rotated by a distance along the axial direction of the main body 60, as shown in FIG. Then, the button 70 is released, and the elastic force of the elastic member 88 pushes the driving portion 80 downward. The inclined surface 86 of the second protruding teeth 85 of the driving portion 80 and the inclined surface 64 of the protruding strips 62 Contacting and moving along the inclined faces 64 into the abutting portions 69 and engaging therein to maintain the control mechanism 50 in the actuating position, and the first teeth of the button 70 The second teeth 84 of the drive member 80 are returned to a state of intimate engagement with a plurality of backlashes therebetween, as shown in FIG.

Thus, even in the case of a variable load or frequent vibration, the bolt 20 and the nut 90 can maintain a strong screw-locking property, which significantly improves the safety of the bolt 20 and the nut 90.

When the nut 90 is to be unloaded, the button 70 is pressed again, so that the driving member 80 is displaced downward to the original position by the elasticity of the elastic member 88, and the small diameter portion 81 is also restored to the engaging member. The position of the latching section 44 is directly opposite to the position of the latching section 44, and the latching section 42 of the latching member 40 is moved into the pocket 38 as shown in the ninth figure. At this time, the second protruding teeth 85 of the driving portion 80 are removed from the abutting portions 69, and a difference is made between the protruding portions 62 and the inclined surfaces 86 of the bottom ends of the second protruding teeth 85. In contact with the inclined surface 64 of the top end of the rib 62, the first tooth portions 74 of the button 70 are in close contact with the second tooth portions 84 of the driving member 80, and the driving member is angularly displaced by a distance. As shown in the fifteenth figure. Then, the button 70 is released again, and the inclined surface 86 of the second protruding teeth 85 is moved by the guiding of the inclined surface 68 of the protruding strip 62 and the pushing of the elastic member 88 to move the second protruding teeth 85 into the In the other slide 66, the driving member 80 is driven to rotate, and the control mechanism 50 is returned and held in the releasing position, that is, in the state as shown in the twelfth figure.

The bolt 20 of the present invention may also be provided with more than one clip 40, and the bolt 20 is lifted by the pair of through holes to enhance the coupling of the bolt 20 to the nut 90.

Moreover, the nut that is matched with the bolt 20 does not have to have a receiving groove. When the bolt 20 is screwed with the nut without the receiving groove, the engaging member 40 can directly abut the hole wall of the nut. The effect desired by the present invention can be achieved.

The bolt of the present invention is displaced by the control mechanism between the release position and the actuating position and remains positioned after displacement, and the snap-fit section of the clip is adjusted to move outward or inward into the pocket. When the bolt is screwed to the nut, the control mechanism is adjusted and held in the release position to make the snap portion of the clip Did not enter the gap. When the bolt and the nut are screwed to the position, and the engaging portion is aligned with the nut of the nut, the control mechanism can be adjusted and maintained in the actuating position, and the second connecting portion of the engaging member By pushing the control mechanism, the card joint is removed from the pocket and is engaged in the cavity of the nut to strengthen the connection strength between the bolt and the nut, thereby exerting a stop effect. Even if the bolt and the nut are in a high vibration frequency, high voltage or high heat environment, the connection between the bolt and the nut can be ensured, so that the bolt and the nut are not easily loosened, and the bolt and the nut are increased. Safety.

The above examples are merely illustrative of the invention and not to be limiting. The anti-loose bolt provided by the invention is the first structure of the same kind of articles, and improves the lack of existing speakers, and is progressive, and is applied according to law.

20‧‧‧ bolt

22‧‧‧ head

24‧‧‧ screw

26‧‧‧ thread

34‧‧‧ Cover

40‧‧‧Cards

42‧‧‧ card joint

50‧‧‧Control agency

70‧‧‧ button

Claims (10)

The anti-loose bolt comprises: a head and a screw, the top end of the screw is connected to the head, and the outer peripheral surface thereof is provided with a thread; and an accommodating space is disposed in the screw of the bolt and along the An axial direction of the screw; an opening disposed at a bottom end of the screw and communicating with the accommodating space; at least one through hole disposed on the outer circumferential surface of the screw and communicating with the accommodating space; at least one snapping The device is disposed in the through hole and is displaceable in the through hole; a control mechanism is disposed in the accommodating space of the screw, and is movable between an actuating position and a releasing position along the longitudinal direction of the accommodating space Displacement and maintaining the position in the actuating position or the releasing position after the displacement; when the control mechanism is kept in the actuating position, the latching member can move the latching member out of the receiving space, so that the latching member is exposed to the The outer peripheral surface of the screw; when the control mechanism remains positioned in the release position, the engaging member is no longer pushed, so that the engaging member is moved into the screw and is no longer exposed to the outer circumferential surface of the screw. The bolt of claim 1, wherein: the control mechanism has a small diameter portion and a large diameter portion, and when the control mechanism is maintained in the actuating position, the large diameter portion opposes the engaging member, the small The diameter portion and the clip have a one-step difference; when the control mechanism is kept in the release position, the small-diameter portion is aligned with the clip, and the large-diameter portion has a difference from the clip. . The bolt of claim 2, wherein the control mechanism further comprises: a button disposed in the accommodating space and movable in the accommodating space, so that the control mechanism is at the release position or the Switching between the actuating positions; a driving member disposed in the accommodating space and movable up and down along the accommodating space, the bottom end of the driving member contacting the top end of the button; the large diameter portion and the small diameter portion The elastic component is disposed in the accommodating space, and the elastic energy is configured to keep the driving component downwardly displaced; when the control mechanism is kept in the actuating position, the button drives the driving component Displacement to a position such that the large diameter portion contacts and opposes the latching member; when the control mechanism remains positioned in the released position, the driving member is displaced by the elastic energy of the elastic member to be displaced to another position The small diameter portion of the driving member is aligned with the engaging member. The bolt according to claim 3, wherein the control mechanism further comprises: a plurality of ribs disposed on the inner circumferential surface of the accommodating space at equal intervals along the axial direction of the screw, and the top end of each ridge A slope is formed; a slide is formed between the adjacent two ridges; a plurality of abutments are regularly disposed at the top of the slide at intervals of a slide; an annular flange is provided at The bottom end of the accommodating space extends a distance from the inner circumferential surface of the accommodating space; the top end of the button is provided with a first ring body, and the top surface of the first ring body has a plurality of first tooth portions, The outer peripheral surface is provided with a plurality of first convex teeth; the top end of the button is placed in the accommodating space, and the first ring body is blocked by the annular flange of the accommodating space, and cannot be separated from the accommodating space; The first convex tooth system is located in the slide rails, so that the button moves up and down in the accommodating space without angular displacement; the driving member is further provided with a receiving portion; the large diameter portion is disposed at the bottom of the driving member The receiving portion is disposed at a top end of the driving member, and the small diameter portion is located at the large diameter portion and the receiving portion Between the portions, the large diameter portion and the receiving portion are connected; the bottom end of the large diameter portion is further provided with a second ring body, and the bottom surface of the second ring body has a plurality of second tooth portions, and a plurality of outer peripheral surfaces thereof are provided a second convex tooth, a bottom surface of each of the second protruding teeth is also provided with a slope; the second tooth portion of the driving member is the same as the button a toothed portion is engaged with each other; the driving member driving member is placed in the sliding track when the control mechanism is in the releasing position; pressing the button causes the control mechanism to be displaced and kept positioned When the position is actuated, the second protruding teeth are moved out of the sliding rails, and a difference is generated between the second protruding teeth and the inclined surfaces of the bottom ends of the second protruding teeth, and the inclined surfaces of the top ends of the protruding strips are in contact with each other, and The guiding of the inclined surface and the pushing of the elastic element, the second protruding teeth are moved into the abutting portions, thereby causing the driving member to rotate; and pressing the button to restore and maintain the control mechanism When the position is released to the release position, the second protruding teeth are moved out of the abutting portions, and a difference is generated between the second protruding teeth and the ridges of the bottom ends of the second protruding teeth. The inclined surfaces are in contact with each other, and the guiding of the inclined surfaces and the pushing of the elastic members cause the second protruding teeth to move into the other sliding passages and drive the driving members to rotate. The bolt according to claim 4, wherein: a main body is formed into a circular tubular shape and is fixed in the accommodating space, and the ridges, the sliding passages and the abutting portions are along the axial direction of the main body The annular flange is disposed on the inner peripheral surface of the main body, and the annular flange is disposed at the bottom end of the main body; the top end of the button is inserted into the main body from the bottom end of the main body; the bottom end of the driving member is from the bottom end The top end of the body is threaded into the body. A bolt according to any one of claims 4 to 5, wherein each of the abutting portions extends from the oblique direction of each of the ribs toward the other rib and extends to the side wall of the other rib at the same slope. The bolt according to claim 1, wherein: at least one groove is disposed on a peripheral surface of the screw of the bolt, and communicates with the through hole; the card member has at least one plug portion and a snap portion, the card The connecting portion is connected to the connecting portion; the connecting portion of the engaging member is installed in the through hole; the engaging portion is received in the receiving groove. A bolt according to any one of claims 3 to 5, wherein: an outer cover, the center thereof The utility model has a perforation, the outer cover is disposed on the bottom surface of the screw, and the bottom end of the button passes through the opening. The bolt of claim 7, wherein: the two through holes are disposed at two ends of the receiving groove and communicate with the receiving space; the engaging member is U-shaped, has a snap portion and two plugs The two insertion sections are inserted into the two through holes, and the inner ends thereof protrude from the accommodating space. The bolt according to claim 1, wherein: further comprising: a nut having a screw hole, wherein the inner wall surface of the screw hole is equidistantly provided with one or more slots, and the nut is screwed to the bolt When the card connector is removed from the bolt, the card is connected to one of the nut slots.