Hexagonal flange face half-thread bolt fastening structure

Abstract

The utility model provides a hexagonal flange face half-thread bolt fastening structure, which belongs to the technical field of fastening bolts, and comprises a stud and a thread sleeve, one end of the stud is fixedly connected with a bolt head, the inner side face of the bolt head is fixedly connected with a gasket, and the other end of the bolt head is fixedly connected with a nut. A plurality of sets of flexible clamping protrusions are arranged on one end face of the inner side of the gasket, a reinforcing cap is fixedly installed at one end of the outer side of the gasket through a clamping buckle, an anti-disengaging mechanism is arranged on the reinforcing cap, an extending sleeve is arranged at one end of the threaded sleeve, and a contact ring is arranged at the other end of the threaded sleeve. The end, close to the contact ring, of the stud is of a smooth cylinder structure with the cylinder diameter gradually decreased, and a threaded structure matched with the inner wall of the threaded sleeve is arranged in the middle section of the stud. The bolt structure can solve the problems that a common bolt structure is insufficient in tolerance and prone to loosening after being vibrated, and consequently parts lose the fastening effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of fastening bolts, and in particular relates to a hexagonal flange surface semi-threaded bolt fastening structure. Background Art

[0002] Bolts and nuts are a common fastening connection element, widely used in various engineering and mechanical devices. In many cases, this traditional bolt device can meet the basic needs of fastening connection, but in some special occasions, such as precision instruments and high-frequency devices, higher strength and durable fixed connection effects are required.

[0003] At present, common bolt devices include bolts and nuts, which are mainly used to connect two parts with through holes. In traditional use, the bolt can be tightened by passing it through the part and tightening it with the nut. However, in some specific occasions, a certain axial rotational clearance between the two parts needs to be considered. In addition, when the equipment fixed with bolts is affected by external conditions such as active vibration or shaking, one end of the nut is prone to loosening. In this way, the nut screwed on the bolt may gradually loosen, or even fall off at both ends, causing the two parts to lose the fastening effect, thereby reducing the stability of the entire system. Utility Model Content

[0004] In view of this, the utility model proposes a hexagonal flange surface semi-threaded bolt fastening structure that can solve the problem that ordinary bolt structures have insufficient tolerance and are easily loosened by vibration, resulting in parts losing their fastening effect.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a hexagonal flange semi-threaded bolt fastening structure, comprising a stud and a threaded sleeve, wherein one end of the stud is fixedly connected to a bolt head, the inner side surface of the bolt head is fixedly connected to a gasket, a plurality of groups of toughness convexities are arranged on an inner end surface of the gasket, an outer end of the gasket is fixedly installed with a reinforcement cap through a snap-fit ​​buckle, an anti-slip mechanism is arranged on the reinforcement cap, an extension sleeve is arranged at one end of the threaded sleeve, a contact ring is arranged between the threaded sleeve and the extension sleeve, an end of the stud close to the contact ring is a smooth cylindrical structure with a cylindrical diameter gradually becoming thinner, and a middle section of the stud is provided with a threaded structure adapted to the inner wall of the threaded sleeve.

[0007] The technical effects of a hexagonal flange surface semi-threaded bolt fastening structure provided by the utility model are as follows: by setting a stud, one end of the bolt head can be adapted to the threaded structure of the threaded sleeve and the inner wall of the extension sleeve through the threaded structure on the stud, so as to lock and fix the workpiece; by setting a gasket on the inner side of the bolt head, it is used to strengthen the contact firmness between the bolt head and the workpiece to prevent loosening due to vibration; by setting a reinforcement cap, it is used to further strengthen the contact firmness between the bolt head and the workpiece, play a role in protecting the bolt head and preventing the bolt head from loosening; by setting one end of the stud as a gradually tapering smooth cylinder, one end of the stud can be more conveniently aligned with the extension sleeve for screwing in, thereby improving the efficiency of blind spot fastening and assembly; by setting a contact ring, it is used to strengthen the contact firmness between the threaded sleeve and the workpiece.

[0008] On the basis of the above technical solution, the hexagonal flange semi-threaded bolt fastening structure of the utility model can also be improved as follows:

[0009] Wherein, a groove is provided in the middle of the reinforcement cap, and the groove is matched with the size of the bolt head.

[0010] Furthermore, a slot adapted to the snap buckle is provided at the outer end of the reinforcement cap, and the slot is used to cooperate with the snap buckle to install the reinforcement cap.

[0011] Furthermore, the anti-slip mechanism includes an internal anti-slip layer and an external adhesive layer, and the internal anti-slip layer is arranged on the inner wall of the groove.

[0012] Furthermore, the external adhesive layer is spaced apart from one end of the reinforcement cap close to the card slot, and a base glue layer is provided on the outer wall of the external adhesive layer.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are: by setting an internal anti-slip layer, the reinforcement cap is installed more firmly at the position corresponding to the bolt head, and by setting an external adhesive layer, the outer end of the reinforcement cap can be adhered and fixed to the workpiece through the bottom glue layer, thereby fixing the bolt head and preventing the bolt head from loosening.

[0014] Furthermore, one end of the contact ring is fixedly connected to the screw sleeve, and an inclined angle between the contact ring and the screw sleeve is 105 to 120 degrees.

[0015] The beneficial effect of adopting the above-mentioned improvement scheme is that the extension sleeve and the contact ring are provided to strengthen the connection firmness between the screw sleeve and the stud and prevent the screw sleeve from loosening.

[0016] Furthermore, the other end of the contact ring is a contact plane, and an anti-slip contact layer is provided on the contact plane.

[0017] Furthermore, the external adhesive layer is fan-shaped, and the thickness of the base glue is 0.8 to 1 mm.

[0018] Furthermore, the number of the tough retaining protrusions is four groups, which are arranged in a ring shape and equidistantly at one end of the inner side of the gasket.

[0019] Furthermore, a group of the tough clamping protrusions includes tough bands on both sides and a contact protrusion in the middle, and a trapezoidal pad is provided at the inner corner of the contact protrusion, and the inner angle of the contact protrusion has an inclination angle of 90 to 110 degrees.

[0020] The beneficial effect of adopting the above-mentioned improvement scheme is: by setting the tough bands on both sides, when the contact protrusion contacts the workpiece, it gradually drives the trapezoidal pad to deform backward according to the degree of tightening. At the same time, the tough bands on both sides are deformed and squeezed toward the middle, so that the tough bands and the contact protrusion squeeze the contact surface of the workpiece at the same time, thereby improving the tightening effect and preventing the bolt head from loosening.

[0021] Compared with the prior art, the beneficial effects of the hexagonal flange semi-threaded bolt fastening structure provided by the utility model are as follows: by setting a stud, one end of the bolt head can be adapted to the threaded structure of the threaded sleeve and the inner wall of the extension sleeve through the threaded structure on the stud, so as to lock and fix the workpiece; by setting a gasket on the inner side of the bolt head, it is used to strengthen the contact firmness between the bolt head and the workpiece to prevent loosening due to vibration; by setting a reinforcement cap, it is used to further strengthen the contact firmness between the bolt head and the workpiece, play the effect of protecting the bolt head and prevent the bolt head from loosening; by setting the screw One end of the column is set as a gradually tapering smooth column, so that one end of the stud can be more conveniently aligned with the extension sleeve for screwing in, thereby improving the efficiency of blind area fastening and assembly, and by setting a contact ring, it is used to strengthen the firmness of the contact between the screw sleeve and the workpiece; by setting tough bands on both sides, when the contact convexity contacts the workpiece, and gradually drives the trapezoidal pad to deform backward according to the degree of tightening, at the same time, the tough bands on both sides are deformed and squeezed toward the middle, so that the tough band and the contact convexity squeeze the contact surface of the workpiece at the same time, so as to improve the tightening effect and prevent the bolt head from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the description of the embodiments of the utility model will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of a hexagonal flange semi-threaded bolt fastening structure;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 10. Stud; 11. Screw sleeve; 12. Bolt head; 13. Gasket; 14. Tough clamping cam; 15. Reinforcement cap; 16. Extension sleeve; 17. Contact ring; 18. Internal anti-slip layer; 19. External adhesive layer; 20. Tough belt; 21. Contact cam. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation mode of the present invention clearer, the technical solution in the implementation mode of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the implementation mode of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1 , shown in FIG2 , is a first embodiment of a hexagonal flange semi-threaded bolt fastening structure provided by the utility model. In this embodiment, it includes a stud 10 and a threaded sleeve 11, wherein one end of the stud 10 is fixedly connected to a bolt head 12, and the inner side surface of the bolt head 12 is fixedly connected to a gasket 13, and a plurality of groups of toughness protrusions 14 are arranged on an inner end surface of the gasket 13, and a reinforcement cap 15 is fixedly installed on the outer end of the gasket 13 through a snap buckle, and an anti-slip mechanism is arranged on the reinforcement cap 15, an extension sleeve 16 is arranged at one end of the threaded sleeve 11, and a contact ring 17 is arranged between the threaded sleeve 11 and the extension sleeve 16, and the end of the stud 10 close to the contact ring 17 is a smooth cylindrical structure with a cylindrical diameter gradually tapering, and the middle section of the stud 10 is provided with a threaded structure adapted to the inner wall of the threaded sleeve 11.

[0030] When in use, the ends of the stud 10 and the ends of the screw sleeve 11 are respectively aligned with the bolts on the workpiece, so that the stud 10 is screwed into the position corresponding to the extension sleeve 16. At the same time, as the tightening degree becomes higher and higher, the contact force between the bolt head 12 through the tough clamping protrusion 14 and the screw sleeve 11 through the contact ring 17 and the workpiece is stronger. After locking to the highest degree, the reinforcement cap 15 is installed at the position corresponding to the snap buckle at one end of the bolt head 12, so that the base glue at the outer end of the reinforcement cap 15 is fitted and fixed to the workpiece.

[0031] Among them, in the above technical solution, a groove is opened in the middle of the reinforcement cap 15, and the groove is adapted to the size of the bolt head 12.

[0032] Furthermore, in the above technical solution, a slot adapted to the snap buckle is provided at the outer end of the reinforcement cap 15 , and the slot is used to cooperate with the snap buckle to install the reinforcement cap 15 .

[0033] Furthermore, in the above technical solution, the anti-slip mechanism includes an internal anti-slip layer 18 and an external adhesive layer 19, and the internal anti-slip layer 18 is arranged on the inner wall of the groove.

[0034] Furthermore, in the above technical solution, the external adhesive layer 19 is spaced apart from one end of the reinforcing cap 15 close to the card slot, and a base glue layer is provided on the outer wall of the external adhesive layer 19 .

[0035] Furthermore, in the above technical solution, one end of the contact ring 17 is fixedly connected to the screw sleeve 11, and the inclined angle between the contact ring 17 and the screw sleeve 11 is 105 degrees.

[0036] Furthermore, in the above technical solution, the other end of the contact ring 17 is a contact plane, and an anti-slip contact layer is provided on the contact plane.

[0037] Furthermore, in the above technical solution, the external adhesive layer 19 is fan-shaped, and the thickness of the base glue is 0.8 mm.

[0038] Furthermore, in the above technical solution, the number of the tough locking protrusions 14 is four groups, which are arranged in a ring shape and equidistantly at one end of the inner side of the gasket 13 .

[0039] Furthermore, in the above technical solution, a group of tough locking protrusions 14 includes tough bands 20 on both sides and a contact protrusion 21 in the middle, and a trapezoidal pad is provided at the inner corner of the contact protrusion 21, and the inner angle of the contact protrusion 21 is inclined at 90 degrees.

[0040] Specifically, the principle of the utility model is: when in use, the ends of the stud 10 and the ends of the screw sleeve 11 are respectively aligned with the bolts on the workpiece, so that the stud 10 is screwed into the position corresponding to the extension sleeve 16. At the same time, as the degree of tightening becomes higher and higher, the contact force between the bolt head 12 through the tough clamping protrusion 14 and the screw sleeve 11 through the contact ring 17 and the workpiece is stronger. After locking to the highest degree, a reinforcement cap 15 is installed at the position corresponding to the snap buckle at one end of the bolt head 12, so that the base glue at the outer end of the reinforcement cap 15 is fitted and fixed to the workpiece.

[0041] Embodiment 2:

[0042] In this embodiment, a stud 10 and a threaded sleeve 11 are included, wherein one end of the stud 10 is fixedly connected to a bolt head 12, the inner side surface of the bolt head 12 is fixedly connected to a gasket 13, a plurality of groups of tough clips 14 are arranged on an inner end surface of the gasket 13, an outer end of the gasket 13 is fixedly installed with a reinforcing cap 15 through a snap-fit ​​buckle, an anti-slip mechanism is arranged on the reinforcing cap 15, an extension sleeve 16 is arranged at one end of the threaded sleeve 11, a contact ring 17 is arranged between the threaded sleeve 11 and the extension sleeve 16, the end of the stud 10 close to the contact ring 17 is a smooth cylindrical structure with a cylindrical diameter gradually becoming thinner, and the middle section of the stud 10 is provided with a threaded structure adapted to the inner wall of the threaded sleeve 11.

[0043] Among them, in the above technical solution, a groove is opened in the middle of the reinforcement cap 15, and the groove is adapted to the size of the bolt head 12.

[0044] Furthermore, in the above technical solution, a slot adapted to the snap buckle is provided at the outer end of the reinforcement cap 15 , and the slot is used to cooperate with the snap buckle to install the reinforcement cap 15 .

[0045] Furthermore, in the above technical solution, the anti-slip mechanism includes an internal anti-slip layer 18 and an external adhesive layer 19, and the internal anti-slip layer 18 is arranged on the inner wall of the groove.

[0046] Furthermore, in the above technical solution, the external adhesive layer 19 is spaced apart from one end of the reinforcing cap 15 close to the card slot, and a base glue layer is provided on the outer wall of the external adhesive layer 19 .

[0047] Furthermore, in the above technical solution, one end of the contact ring 17 is fixedly connected to the screw sleeve 11, and the inclined angle between the contact ring 17 and the screw sleeve 11 is 120 degrees.

[0048] Furthermore, in the above technical solution, the other end of the contact ring 17 is a contact plane, and an anti-slip contact layer is provided on the contact plane.

[0049] Furthermore, in the above technical solution, the external adhesive layer 19 is fan-shaped, and the thickness of the base glue is 1 mm.

[0050] Furthermore, in the above technical solution, the number of the tough locking protrusions 14 is four groups, which are arranged in a ring shape and equidistantly at one end of the inner side of the gasket 13 .

[0051] Furthermore, in the above technical solution, a group of tough locking protrusions 14 includes tough bands 20 on both sides and a contact protrusion 21 in the middle, and a trapezoidal pad is provided at the inner corner of the contact protrusion 21, and the inner angle of the contact protrusion 21 is inclined at 110 degrees.

Claims

1. A hexagonal flange semi-threaded bolt fastening structure, comprising a stud (10) and a threaded sleeve (11), characterized in that: One end of the stud (10) is fixedly connected to a bolt head (12), the inner side surface of the bolt head (12) is fixedly connected to a gasket (13), a plurality of groups of toughness protrusions (14) are arranged on an inner end surface of the gasket (13), a reinforcement cap (15) is fixedly installed on an outer end of the gasket (13) through a snap-fit ​​buckle, and an anti-slip mechanism is arranged on the reinforcement cap (15), one end of the screw sleeve (11) is provided with an extension sleeve (16), a contact ring (17) is arranged between the screw sleeve (11) and the extension sleeve (16), one end of the stud (10) close to the contact ring (17) is a smooth cylindrical structure with a cylindrical diameter gradually tapering, and the middle section of the stud (10) is provided with a threaded structure adapted to the inner wall of the screw sleeve (11).

2. A hexagonal flange semi-threaded bolt fastening structure according to claim 1, characterized in that: A groove is provided in the middle of the reinforcement cap (15), and the groove is adapted to the size of the bolt head (12).

3. A hexagonal flange semi-threaded bolt fastening structure according to claim 2, characterized in that: The outer end of the reinforcement cap (15) is provided with a slot adapted to the snap buckle, and the slot is used to cooperate with the snap buckle to install the reinforcement cap (15).

4. A hexagonal flange semi-threaded bolt fastening structure according to claim 3, characterized in that: The anti-slip mechanism comprises an internal anti-slip layer (18) and an external adhesive layer (19), and the internal anti-slip layer (18) is arranged on the inner wall of the groove.

5. A hexagonal flange semi-threaded bolt fastening structure according to claim 4, characterized in that: The external adhesive layer (19) is spaced apart from one end of the reinforcing cap (15) close to the card slot, and a base glue layer is provided on the outer wall of the external adhesive layer (19).

6. A hexagonal flange semi-threaded bolt fastening structure according to claim 5, characterized in that: One end of the contact ring (17) is fixedly connected to the screw sleeve (11), and an inclined angle between the contact ring (17) and the screw sleeve (11) is 105 to 120 degrees.

7. A hexagonal flange semi-threaded bolt fastening structure according to claim 6, characterized in that: The other end of the contact ring (17) is a contact plane, and an anti-slip contact layer is arranged on the contact plane.

8. A hexagonal flange semi-threaded bolt fastening structure according to claim 7, characterized in that: The external adhesive layer (19) is fan-shaped, and the thickness of the base glue is 0.8-1 mm.

9. A hexagonal flange semi-threaded bolt fastening structure according to claim 8, characterized in that: The number of the tough locking protrusions (14) is four groups, which are arranged in a ring shape and at equal distances at one end of the inner side of the gasket (13).

10. A hexagonal flange semi-threaded bolt fastening structure according to claim 9, characterized in that: A group of the tough clamping protrusions (14) comprises tough bands (20) on both sides and a contact protrusion (21) in the middle, and a trapezoidal pad is provided at the inner corner of the contact protrusion (21), and the inner corner of the contact protrusion (21) has an inclination angle of 90 to 110 degrees.

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