KR200289701Y1 - A fixture for preventing bolt from unfastening - Google Patents

Abstract

When the two objects are fixed to each other by using bolts, the present invention prevents permanent dismantling of bolts to secure the stability of the locking state, increase the reliability of the fixing operation, and secure the bolt loosening prevention structure configured to beautify the appearance of the fastening part. It's about a phrase.

The present invention, the cap head to form an inner space to be fitted, the outer surface to form a smooth smooth surface; A slip washer positioned between the bottom of the cap and the bolt head to cause slippage of the cap relative to the bolt; And an auxiliary cap screwed into the space to close the inner space of the cap and having a cutting head which is separated after being coupled to the space. Provide fasteners.

Description

Fastener for preventing bolt loosening {A FIXTURE FOR PREVENTING BOLT FROM UNFASTENING}

The present invention relates to a fastener for preventing bolt loosening that prevents the bolts from being disassembled after the various bolts are fastened, more specifically, when two objects are fixed to each other by using bolts, they can not be dismantled permanently to secure stability of the locked state. And, to increase the reliability of the fixing operation, and relates to a fastener for preventing bolt loosening configured to make the appearance of the fastening portion beautiful.

In general, fasteners such as bolts 100 are mechanical elements that are generally used to couple two objects 130a and 130b together. As shown in FIG. 8A, the bolts 100 have straight grooves or + magnetic grooves 112 formed in the head part 110 to form a space 5 into which the driver 120 is inserted. By rotating the bolt 100 by inserting the blade of the screwdriver 120 into the operator, the operator can easily couple the two objects (130a, 130b) to each other.

And, as shown in Figure 8b, for the bolt 100 having a hexagonal head (110a) by rotating the hexagonal head (110a) using a spanner or various tools 140, the two objects (130a) 130b may be combined with each other.

However, although the conventional bolts 100 as described above can easily fix the two objects 130a and 130b, they cannot be permanently preserved while the two objects 130a and 130b are fixed. . That is, in the case of a work place that requires permanent fastening, the two objects 130a and 130b thus joined may be released by other people differently from the intention of the fastener. That is, since such a conventional structure can be rotated in both directions, anyone can dismantle these bolts 100 with only a simple tool 140, so that the reliability of the coupling state cannot be assured, and various coupling articles There was a risk of theft, and the security of the joint could not be maintained.

The present invention is to solve the conventional problems as described above, the purpose is to secure the stability of the locked state, if the security is necessary to prevent the permanent disassembly of the two objects fixed to each other by using a bolt, It is to provide a fastener for preventing bolt loosening configured to increase the reliability and to beautify the appearance of the fastening portion.

1 is a cross-sectional view showing a coupling state of the fastener for preventing bolt loosening according to the present invention;

2 is a cross-sectional view of the fastener for preventing bolt loosening according to the present invention;

3 is an exploded perspective view of the fastener for preventing bolt loosening according to the present invention;

Figure 4 is a state of use of the fastener for preventing bolt loosening according to the present invention;

5 is an exploded perspective view of a fastener for preventing bolt loosening according to a second embodiment of the present invention;

6 is a cross-sectional view showing a coupling state of the bolt fastening preventing fasteners according to the second embodiment of the present invention;

7 is a perspective view showing the operating state of the bolt head provided in the fastener for preventing bolt loosening according to the second embodiment of the present invention;

8 is a cross-sectional view of the combination of bolts according to the prior art,

a) configuration diagram in which a driver groove is formed in the turning head,

b) is a block diagram which has a hexagonal head part.

<Description of the symbols for the main parts of the drawings>

5 ..... inner space 10 .... cap

12 .... Smooth surface 15 .... Hole

17 .... 25 .. Assistant cap

27 .... Female thread 35 .... Slip washer

38 .... Jaw 42 .. Disc body

45 .... diameter reduction 52 .... cutting head

55 .... Connecting neck 60 .... One-way rotating part

62 .... Hanging wall 65 .... Slope

100 ... bolt 110 ... head

112 .... Home 120 .... Screwdriver

140 ... tools

In order to achieve the above object, the present invention, in the fastener for preventing bolt loosening to prevent the bolts to fasten the two objects, then dismantle it, to form an inner space in which the bolt head is fitted, the outer surface is a smooth smooth surface A cap forming a; A slip washer positioned between the bottom of the cap and the bolt head to cause slippage of the cap relative to the bolt; And an auxiliary cap screwed into the space to close the inner space of the cap, and having a cutting head that is separated after being coupled to the space. By providing a fastener for preventing bolt loosening.

And, in order to achieve the above object, the present invention, in the fastener for preventing bolt loosening to prevent the bolts to fasten the two objects, then dismantle it, to form an inner space in which the bolt head is fitted, the outer surface is A cap forming a smooth smooth surface; A slip washer positioned between the bottom of the cap and the bolt head to cause slippage of the cap relative to the bolt; And a plurality of locking walls formed in the bolt head inserted into the space, and inclined surfaces connecting the locking walls to enable one-way locking rotation of the bolt through the locking wall, and an unwinding rotation on the opposite side is directed to the inclined surface. Due to the one-way rotating portion that is not possible due to; by providing a fastener for preventing bolt loosening, characterized in that the bolt to fasten the two objects to prevent it from being released again.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Fastening fastener 1 for preventing bolt loosening according to the present invention, as shown in Figures 1 and 2, as the bolt 100 is fastened to two objects (130a, 130b), and then used to prevent disassembly, The present invention forms an inner space 5 into which the bolt head 110 is fitted, and the outer surface has a cap 10 that forms a smooth smooth surface 12. The cap 10 forms a smooth surface 12 of a hemispherical outer surface, and a hole 15 through which the bolt 100 penetrates is formed at the center thereof, and a head of the bolt 100 is formed at the lower end of the hole 15. A stepped portion 17 is formed on which the portion 110 is caught, and an internal thread portion 27 for screwing the auxiliary cap 25 to be described later is formed on the inner surface of the hole 15.

Therefore, when the bolt 100 is inserted into the inner space 5, the cap 10 is wrapped around it, so that the outer smooth surface 12 of the cap 10 is the head 110 of the bolt 100 It is exposed to the outside instead of). In this case, the smooth surface 12 is to be caused to slip due to the hemispherical smooth surface 12 structure when the tool 140 such as the forceps picks up.

And, having a slip washer 35 is located between the lower surface of the cap 10 and the bolt head 110 to cause the sliding of the cap 10 with respect to the bolt 100, the slip washer 35 ) Forms a locking jaw 38 on the upper end of the cap 10, and the disc-shaped body 42 is an object to which the lower surface of the cap 10 and the bolt 100 are coupled ( It is disposed between the outer surface of the 130a to cause a slip, the diameter reducing portion 45 between the locking jaw 38 and the body 42 is the space of the lower surface of the bolt head 110 and the cap 10 (5) It is disposed between the inner surface and causes a slip between the cap 10 and the bolt head 110. Therefore, the cap 10 is smoothly rotated independently of the outer surface of the bolt head 110 and the two objects 130a and 130b to which the bolt 100 is coupled due to the slip washer 35. It has a structure that can be done.

In the coupling process of the cap 10 and the slip washer 35, the cylindrical member extending to the same diameter in the reduction portion 45 in the state that does not form the engaging jaw 38 of the slip washer (not shown) Inserting into the inner diameter of the step 17 of the cap 10, and pressing the cylindrical member of the slip washer 35 from the top to form a latching jaw 38 while the diameter of the cylindrical member is enlarged to form the slip. The washer 35 can be hooked to the cap 10. Since this working process is a simple thing known in the art, a detailed description thereof will be omitted.

Meanwhile, the present invention has a cutting head 52 which is screwed into the space 5 to close the inner space 5 of the cap 10 and separated after being coupled to the space 5. With the auxiliary cap 25, the auxiliary cap 25 is formed on the outer surface of the male screw 54 to be screwed to the female screw 27 of the cap 10, the upper cutting head 52 ), But the upper surface of the cutting head 52 is-or + -shaped groove 52a is formed. In addition, the auxiliary cap 25 is formed between the cutting head 52 and the connection neck portion 55 is reduced in diameter, the diameter of the connection neck portion 55 by the driver 120 Rotating the cutting head 52 transmits the rotation to the main body through the connecting neck 55, so that the auxiliary cap 25 can be screwed into the space 5 of the cap 10, the coupling After this is completed, if the operator gives a little force, the cutting is made in the connection neck 55 has a size that can be separated from the auxiliary cap 25 and the cutting head 52.

Therefore, the diameter of the connecting neck 55 may be appropriately calculated by design according to the material used may be made to the appropriate size.

The present invention configured as described above is a groove 112 formed in the head 110 of the bolt 100 after inserting the bolt 100 into the space 5 of the cap 10 as shown in FIG. The two objects 130a and 130b are screwed together to tighten.

Tightening the two objects (130a, 130b) using the bolt 100 in this way, and then coupled to the male screw (54) of the auxiliary cap (25) to the female screw (27) of the cap 10, the cap Since the inner space 5 of the 10 is closed by the auxiliary cap 25, the bolt head 110 is not exposed to the outside. In this state, when the operator further rotates the cutting head 52, the cutting head 52 is cut at the connecting neck 55 to separate the cutting head 52 from the auxiliary cap 25. This state is illustrated in FIG. 4. Thus, when fastened in this way, the head 110 of the bolt 100 is not exposed to the outside, only the smooth hemispherical outer surface of the cap 10 and the cutting head 52 are removed and inserted into the space 5. Part of the auxiliary cap 25 is exposed to the outside.

In such a state, even if someone other than the worker tries to loosen the bolt 100, the tool 10 such as a screwdriver or a forceps cannot be disassembled unless the cap 10 is damaged. This is because the outer surface of the cap 10 is made of a hemispherical smooth surface 12 can not be picked up by tools 140 such as tongs, there is no groove that can take the blade of the driver 120 anywhere. In addition, even if the outer surface of the cap 10 is picked up with a special forceps to rotate it, the rotation of the cap 10 is not transferred to the bolt 100 due to the slip washer 35 and the cap 10 Only idle.

Therefore, the present invention is such that the bolt 100 can not be loosened through the rotation of the cap 10, the bolt 100 can be permanently fastened.

And, the present invention can be made of a structure different from the above, as shown in Figs. That is, the fastener for preventing bolt loosening 1 ′ according to the second embodiment of the present invention has a similar structure to the fastener 1 shown in FIGS. 1 to 4, and the same reference numerals are assigned to the same parts. And it is identified by subscript (').

The fastener 1 'forms an inner space 5' into which the bolt head 110 is fitted, and an outer surface thereof has a cap 10 'that forms a smooth smooth surface 12'. The cap 10 'forms a smooth surface 12' of the conical outer surface, and a hole 15 'through which the bolt 100 penetrates is formed at the center thereof, and a bolt 100 is formed at the lower end of the hole 15'. A step 17 'is formed on which the head 110 of the) is caught, and the inner surface of the hole 15' forms a smooth circular cross section.

Accordingly, when the bolt 100 is inserted into the inner space 5 ', the cap 10' surrounds it, so that the outer conical smooth surface 12 'of the cap 10' is the bolt 100. In place of the head 110 is exposed to the outside. In this case, when the smooth surface 12 'is picked up using a tool 140 such as a forceps, the smooth surface 12' is caused to slip due to the conical smooth surface 12 'structure.

And a slip washer 35 'positioned between the bottom surface of the cap 10' and the bolt head 110 to cause slippage of the cap 10 'with respect to the bolt 100. The washer 35 'forms a blackened jaw 38' on the upper end of the cap 10 ', and the disc-shaped body 42' has a lower surface and the cap 10 '. The bolt 100 is disposed between the outer surfaces of the object (130a) to be coupled to cause a slip, the diameter reducing portion 45 'between the locking jaw 38' and the body 42 'is the bolt head ( It is disposed between the lower surface of the 110 and the inner surface of the space 5 'of the cap 10' to cause slippage between the cap 10 'and the bolt head 110.

Therefore, the cap 10 'is smoothly independently of the outer surface of the bolt head 110 and the object 130a or 130b to which the bolt 100 is coupled due to the slip washer 35'. It has a rotatable structure.

The combination of the cap 10 ′ and the slip washer 35 ′ is as described with reference to FIGS. 1 to 4, and thus a detailed description thereof will be omitted.

Meanwhile, the one-way rotation part 60 is formed in the bolt head 110 inserted into the space 5 ', and the one-way rotation part 60 includes a plurality of locking walls 62 and the locking wall 62. The one side locking rotation of the bolt 100 through the engaging walls 62 is possible with the inclined surfaces 65 connecting each other, and the unlocking rotation on the opposite side is impossible due to the inclined surface 65.

As shown in FIG. 7, the inclined surfaces 65 are inclined from the lower end of the one locking wall 62 toward the upper end of the other locking wall 62, and the locking walls 62 are coaxial with each other. By constructing the '-' structure, the worker can rotate the bolt 100 using the locking walls 62, but the bolt 100 is turned to the opposite side of the direction of rotation thereof, that is, using the inclined surface 65. It cannot be rotated.

In the second embodiment of the present invention configured as described above, as shown in FIG. 6, the bolt 100 is inserted into the space 5 ′ of the cap 10 ′, and then the head of the bolt 100 is inserted. The two bolts 130a and 130b are screwed together by rotating the bolt 100 in one direction by using the locking walls 62 formed at the 110.

When the two objects 130a and 130b are tightened by using the bolt 100, the bolt head 110 is positioned in the inner space 5 ′ of the cap 10 ′. In this state, the bolt head 110 is wrapped in the cap 10 to be protected from the outside, it is only allowed to rotate in one direction, that is, the bolt lock direction, it is impossible to rotate in the opposite direction. It is possible to rotate only in the locking direction through the driver 120 due to the combination structure of the locking wall 62 and the inclined surface 65, the rotation in the opposite direction is the driver 120 blade is the inclined surface 65 This is because it is impossible to transfer the rotational force to the bolt 100 by idling.

In addition, when fastened in this way, the head 110 of the bolt 100 is not exposed to the outside, only the smooth conical outer surface 12 'of the cap 10' is exposed to the outside, in this state other than the worker Even if someone tries to loosen the bolt 100, unless the cap 10 'is damaged, it is impossible to disassemble it with a tool 140 such as a screwdriver 120 or a tong. Since the outer surface of the cap 10 'is made of a conical smooth surface 12' which cannot be easily picked up with tongs, it cannot be picked up by a tool 140 such as tongs, and the blade of the screwdriver 120 is bolted ( There is no groove to rotate 100) in the opposite direction.

In addition, even if the outer surface of the cap 10 'is picked up by a special forceps and the like, and rotates it, as described with reference to FIGS. 1 to 4, the rotation of the cap 10' is a slip washer 35. Due to ') is not delivered to the bolt 100, only the cap (10') is to idle.

Therefore, the present invention is such that it is not possible to disassemble the bolt 100 through the rotation of the cap (10 ') is to be able to permanently fasten the bolt (100).

According to the present invention as described above, when the two objects (130a, 130b) is fixed to each other by using the bolt 100, it is not possible to dismantle it permanently to secure the stability of the locked state when security is required, the reliability of the fixing Cap 10, 10 ', which is exposed to the outside by surrounding the bolt head 110, has a hemispherical or conical smooth surface 12, 12', and is manufactured by using a stainless material, etc. It can be beautiful in appearance.

Claims (7)

In the bolt fastening prevention fasteners to prevent the bolts 100 to fasten the two objects (130a, 130b), then dismantled, A cap 10 forming an inner space 5 into which the bolt head 110 is fitted, and an outer surface of which forms a smooth smooth surface 12; A slip washer (35) positioned between the lower surface of the cap (10) and the bolt head (110) to cause the cap (10) to slip against the bolt (100); And An auxiliary cap 25 having a cutting head 52 which is screwed into the space 5 so as to close the inner space 5 of the cap 10 and is separated after being joined to the space 5. Fasteners for preventing bolt loosening, characterized in that the bolt 100 to fasten the two objects (130a) (130b), including the; 2. The cap (10) according to claim 1, wherein the cap (10) forms a smooth surface (12) of a hemispherical outer surface and is exposed to the outside in place of the head (110) of the bolt (100) to tool the smooth surface (12). Fasteners for preventing bolt loosening, characterized in that, when picked up (140), characterized in that the sliding due to the hemispherical smooth surface 12 structure is configured to occur. According to claim 1, wherein the slip washer 35 is formed in the upper engaging jaw 38 to be caught on the step 17 of the cap 10, the disc body 42 and the lower surface of the cap 10 and The bolt 100 is disposed between the outer surface of the object 130a to be coupled to cause a slip, the diameter reducing portion 45 formed between the locking jaw 38 and the body 42 is the bolt head 110 ) Is disposed between the lower surface of the cap 10 and the inner surface of the space 5 of the cap 10 to induce a slip between the cap 10 and the bolt head 110, thereby causing the slip washer 35 to Cap 10 is fastening bolt fastening prevention, characterized in that the bolt head 110 and the bolt 100 is smoothly rotated independently of the outer surface of the two objects (130a, 130b) to be coupled. According to claim 1, wherein the auxiliary cap (25) is formed on the outer surface of the male thread (54) is screwed to the female screw (27) formed in the hole 15 of the cap 10, the upper cutting head Fasteners for preventing bolt loosening, characterized in that 52 is formed on the upper surface of the groove (52a) is formed on the upper surface. In the bolt fastening prevention fasteners to prevent the bolts 100 to fasten the two objects (130a, 130b), then dismantled, A cap 10 'which forms an inner space 5' into which the bolt head 110 is fitted, and an outer surface of which forms a smooth smooth surface 12 '; A slip washer 35 'positioned between the bottom surface of the cap 10' and the bolt head 110 to cause slippage of the cap 10 'with respect to the bolt 100; And A plurality of engaging walls 62 formed in the bolt head 110 inserted into the space 5 'and inclined surfaces 65 connecting the engaging walls 62 are provided through the engaging wall 62. One-way locking rotation of the bolt 100 is possible, and the reverse rotation of the bolt 100 is one-way rotating part 60 which is impossible due to the inclined surface 65. The bolt that fastens the two objects 130a and 130b ( Fasteners for preventing bolt loosening, characterized in that the 100 is not to be released again. The smooth surface (12 ') according to claim 5, wherein the cap (10') forms a smooth surface (12 ') of the conical outer surface and is exposed to the outside in place of the head (110) of the bolt (100). Fasteners for preventing bolt loosening, characterized in that when the pick up using a tool 140, such as tongs, the sliding occurs due to the conical smooth surface (12 ') structure. The method of claim 5, wherein the one-way rotating part 60 is inclined toward the top of the other locking wall 62, the respective inclined surface 65 from the lower end of the one locking wall 62, the locking wall 62 By forming a coaxial -shaped structure with each other, the operator can rotate the bolt 100 using the locking walls 62, but the bolt 100 can be used by using the inclined surface 65 opposite to the rotation direction. Fasteners for preventing bolt loosening, characterized in that configured to not rotate.