CN201202768Y - Filament Locking Fixture - Google Patents

Abstract

The utility model discloses a filament locking fixture, aiming to provide a filament locking mechanical device which can be disassembled and reused, and can provide large locking force after tightening. The main point of the technical solution is that the fixture is composed of a fixing bolt, a clamping sleeve and a locking cap; The thread runs through the central axis of the locking device; the fixing bolt is used to accommodate the locking cap and the clamping sleeve, and fix the whole device, the clamping sleeve guides and clamps the filament, and the three cooperate with each other to lock the filament; through the rotation lock Tighten the cap so that each part of the locking device and the filament form a force interaction to realize the locking of the filament. The locking force produced by this locking fixture is large, and it can lock wires of different diameters; in addition to locking a single filament, it can also lock multiple filaments at the same time; the structure is simple, the installation is convenient, and it is easy to process and manufacture. Easy to disassemble and reusable.

Description

Filament Locking Fixture

technical field

The utility model relates to a fastening mechanical device, in particular to a detachable filament locking method and a mechanical device with threads and a tapered sleeve which can provide large locking force after tightening.

Background technique

At present, the locking methods of filaments mainly include winding method and top wire method. The winding method is to wind the filament on a fixed object, tie the filament into a knot, adjust the tightness of the knot, change the locking force, and realize the fastening of the filament. The locking force generated by the locking method mainly depends on the tightness of the knot. The tighter the knot, the greater the locking force. Therefore, it is difficult to obtain a larger lock for the rigid filament because it is not easy to produce a large twist. and easy to fall off; the locking method is cumbersome to operate, and the locking force is affected by human factors.

The jackscrew method primarily involves bolts or screws and fixtures. The locked filament is interposed between the bolt or screw and the fixing device, and the bolt or screw and the fixing device cooperate with each other through threads to compress the filament. The thread to be locked is in line contact with the bolt or screw. The locking force of the locking method is small, and sliding and misalignment are likely to occur between the bolt or screw and the filament.

Contents of the invention

The purpose of this utility model is to overcome the deficiencies in the above-mentioned prior art, and to provide a filament locking fixture with simple structure, convenient installation and reusability. The wire is not easy to fall off from it, and the locking force provided is large.

In order to solve the above technical problems, the utility model can be realized by adopting the following technical solutions:

The utility model filament locking fixture is made up of fixing bolt, clamping sleeve 102 and locking cap 103. The inside of the fixing bolt 101 contains a circular threaded through hole, which is used to accommodate the clamping sleeve 102 and the locking cap 103; The circular filament clamping hole 402, the clamping sleeve 102 is used to guide and clamp the locked filament 104; the inside of the locking cap 103 contains a frustum-shaped through hole 305, and its outer surface is distributed with the inside of the fixing bolt 101 Threads that match the threaded hole pattern. The clamping sleeve 102 is located inside the locking cap 103, and the locking cap 103 is located at the upper end of the fixing bolt 101. The locking cap 103 cooperates with the fixing bolt 101 and the clamping sleeve 102 to lock the locked filament 104.

The fixing bolt 101 includes a bolt shank 201 and a bolt cap 202 , the interior of the bolt shank 201 includes a circular through hole; the exterior of the bolt cap 202 is cylindrical, and two parallel clamping planes 211 are included on both sides thereof. The material of the clamping sleeve 102 is spring steel, the filament clamping hole 402 is located at the central axis of the clamping sleeve 102, and one side of the central axis of the clamping sleeve 102 includes a rectangular through hole 404, and the rectangular through hole 404 is connected with the filament The clamping holes 402 are connected. The locking cap 103 includes a bolt shank 302 and a bolt cap 303. On the bolt shank 302, four rectangular slots 301 are evenly distributed around the circumference of the bolt shank 302. The bolt cap 303 has a regular hexagonal structure.

Changing the shape of the thread clamping hole in the clamping sleeve without changing the shape of the fixing bolt and the locking cap can realize the locking of multiple filaments.

The clamping sleeve 501 includes two filament clamping holes 504 and two rectangular through holes 505 . The two filament clamping holes 504 are symmetrically located on both sides of the center of the clamping sleeve 501 . The two rectangular through holes 505 communicate with the two filament clamping holes 504 respectively. The locking fixture can lock two non-adjacent filaments.

The clamping sleeve 601 includes three filament clamping holes 604 and three rectangular through holes 605 . Three filament clamping holes 604 are evenly distributed around the center of the clamping sleeve. Three rectangular through holes 605 are evenly distributed around the center of the clamping sleeve 601 , and the three rectangular through holes 605 communicate with the three filament clamping holes 604 respectively. The locking fixture can lock three non-adjacent filaments.

The clamping sleeve 701 includes two filament clamping holes 704 and two rectangular slots 705 . The outer diameters of the two filament clamping holes 704 are tangent to the center of the clamping sleeve 701 . Two rectangular slots 705 are symmetrically located on both sides of the center of the clamping sleeve 701 , and the two rectangular slots 705 communicate with the two filament clamping holes 704 respectively. The locking fixture can lock two filaments with tangential outer diameters.

The clamping sleeve 801 includes three filament clamping holes 804 and three rectangular slots 805 . The three filament clamping holes 804 are evenly distributed around the center of the clamping sleeve 801 , and the three filament clamping holes 804 are circumscribed in pairs. Three rectangular slots 805 are evenly distributed around the center of the clamping sleeve 801 , and the three rectangular slots 805 communicate with the three filament clamping holes 804 respectively. The locking fixture can lock three filaments with tangential outer diameters.

The clamping sleeve 901 is divided into an outer shell part 904 and a movable inner core 905 . The shell part 904 includes a quincunx-shaped filament clamping hole 1001 and two rectangular slots 1002 . The quincunx-shaped clamping hole 1001 is located at the center of the shell part 904 . The quincunx-shaped filament clamping hole 1001 includes a plurality of vertical grooves 1003 , and the vertical grooves 1003 are semicircular and tangent to each other. The rectangular slots 1002 are symmetrically located on both sides of the center of the shell part 904 , and the two rectangular slots 1002 communicate with the quincunx-shaped filament clamping holes 1001 . The movable inner core 905 is cylindrical in shape, and the outer surface of the movable inner core 905 includes a plurality of vertical grooves 1101 , the vertical grooves 1101 are semicircular, and the outer diameters of each vertical groove 1101 are tangent. The locking fixture can lock a plurality of outer diameter tangential filaments.

The method for locking filaments comprises the steps:

(1) One or more filaments are passed through the fixing bolt 101, and drawn from the bolt cap 202 of the fixing bolt 101;

(2) Make the filament pass through the filament clamping hole of the clamping sleeve, and lead out from the lower bottom surface of the clamping sleeve;

(3) thread is passed through the bolt shank 302 of locking cap 103, and is drawn from the bolt cap 303 of locking cap 103;

(4) Put the clamping sleeve into the frustum-shaped through hole 305 of the locking cap 103, then align the locking cap 103 with the circular threaded through hole of the fixing bolt 101, and rotate the locking cap 103 along the thread advancing direction , and screw into a certain depth, so that the locking cap 103 and the fixing bolt 101 are mutually locked until the locking filament 104 is locked.

Compared with the prior art, the beneficial effects of the utility model are:

1. The locking force provided by the entire locking fixture is large. The fixing bolt and the locking cap are matched by internal and external threads, and the tapered clamping sleeve is installed inside the locking cap; the height of the clamping sleeve is equal to the height of the internal through hole of the locking cap, but the volume of the clamping sleeve is larger than that of the locking cap The volume of the internal through hole makes the deeper the locking cap is screwed into the fixing bolt, the more the part of the clamping sleeve is pushed into the locking cap by the fixing bolt, the three squeeze each other and restrict each other, and the pressure on the clamping sleeve is accordingly increase, the clamping hole of the filament in the clamping sleeve becomes smaller gradually, resulting in a tightening effect, thereby locking the filament, and the deeper the locking cap is screwed into the fixing bolt, the stronger the locking force of the clamping sleeve on the filament big.

2. Capable of locking wires of different diameters. Changing the diameter of the filament clamping hole in the clamping sleeve to match the wires of different diameters can realize the locking and fastening of the wires of different diameters.

3. Able to lock different quantities of wires at the same time. Changing the shape of the clamping hole of the filament in the clamping sleeve can lock two or three non-adjacent filaments, two or three filaments with tangential outer diameters; adding a movable inner core in the clamping sleeve, the thin The wire clamping hole is changed into a plum blossom shape and connected with two rectangular slots, which can lock multiple filaments tangential to the outer diameter.

4. Easy to manufacture and easy to install. The design structure of the fixing bolt, locking cap and clamping sleeve is simple, and the production of the entire locking fixture can be completed by ordinary machining; the fixing bolt and the locking cap are threaded, and the taper of the clamping sleeve and the locking cap Equal, the assembly process among the three is simple; in the process of assembling the filament, the clamping sleeve can guide the clamping of the filament, making the installation convenient.

5. Detachable and reusable. The fixing bolt and the locking cap are assembled through internal and external threads, and the bolt cap of the locking cap has a regular hexagonal structure. At the same time, there are two parallel clamping planes on the outside of the bolt cap of the fixing bolt, which is convenient for clamping and dismounting; the clamping sleeve The material is spring steel, which is not easy to produce plastic deformation. After unloading, lightly touch the upper bottom surface of the clamping sleeve from the direction of the bolt cap of the locking cap, and the locking cap and clamping sleeve can be separated for the next use.

Description of drawings

Figure 1 is a sectional view of the general assembly drawing. Among the figure: 101—fixing bolt, 102—clamping sleeve, 103—locking cap, 104—locked filament.

Fig. 2(a) is a sectional view of the fixing bolt. Among the figure: 201—bolt shaft, 202—bolt cap, 203—lower through hole, 204—external thread, 205—internal thread, 206—upper through hole, 207—step hole, 208—step surface.

Figure 2(b) is a bottom view of the fixing bolt. In the figure: 209—arc portion, 210—plane portion, 211—clamping plane.

Figure 3(a) is an isometric view of the locking cap. In the picture: 301—rectangular slotting.

Figure 3(b) is a sectional view of the locking cap. Among the figure: 302—bolt rod, 303—bolt cap, 304—external thread, 305—lower through hole, 306—relief groove, 307—upper bottom surface of through hole, 308—lower bottom surface of through hole, 309—upper through hole.

Fig. 4(a) is a sectional view of a clamping sleeve for clamping a single filament. In the figure: 401—lower bottom surface, 402—filament clamping hole, 403—upper bottom surface.

Figure 4(b) is a top view of the clamping sleeve used to clamp a single filament. In the figure: 404—rectangular through hole.

Fig. 5(a) is a sectional view of a clamping sleeve for clamping two non-adjacent filaments. Among the figure: 501—clamping sleeve, 502—lower bottom surface, 503—upper bottom surface, 504—filament clamping hole.

Fig. 5(b) is a top view of a clamping sleeve for clamping two non-adjacent filaments. In the figure: 505—rectangular through hole.

Fig. 6(a) is a sectional view of a clamping sleeve for clamping three non-adjacent filaments. Among the figure: 601—clamping sleeve, 602—lower bottom surface, 603—upper bottom surface, 604—filament clamping hole.

Fig. 6(b) is a top view of a clamping sleeve for clamping three non-adjacent filaments. In the figure: 605—rectangular through hole.

Fig. 7(a) is a sectional view of a clamping sleeve for clamping two filaments with tangential outer diameters. Among the figure: 701—clamping sleeve, 702—lower bottom surface, 703—upper bottom surface, 704—filament clamping hole.

Fig. 7(b) is a top view of the clamping sleeve used for clamping two filaments with tangential outer diameters. In the picture: 705—rectangular slotting.

Fig. 8(a) is a sectional view of a clamping sleeve for clamping three filaments with tangential outer diameters. Among the figure: 801—clamping sleeve, 802—lower bottom surface, 803—upper bottom surface, 804—filament clamping hole.

Fig. 8(b) is a top view of a clamping sleeve for clamping three filaments with tangential outer diameters. In the picture: 805—rectangular slotting.

Fig. 9(a) is a cross-sectional view of a clamping sleeve for clamping multiple filaments with tangential outer diameters. In the figure: 901—clamping sleeve, 902—lower bottom surface, 903—upper bottom surface, 904—shell part, 905—movable inner core.

Fig. 9(b) is a top view of a clamping sleeve for clamping multiple filaments with tangential outer diameters. In the figure: 904—shell part, 905—movable inner core.

Fig. 10(a) is a partial cross-sectional view of the housing of the clamping sleeve for clamping multiple filaments with tangential outer diameters. In the picture: 1001—the clamping hole of the plum-shaped filament.

Fig. 10(b) is a partial top view of the housing of the clamping sleeve for clamping multiple filaments with tangential outer diameters. In the figure: 1002—rectangular groove, 1003—vertical groove.

Fig. 11(a) is a front view of the movable inner core in the clamping sleeve for clamping multiple filaments with tangential outer diameters.

Fig. 11(b) is a top view of the movable inner core in the clamping sleeve for clamping multiple filaments with tangential outer diameters. In the figure: 1101—vertical groove.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

The first embodiment:

Fig. 1 shows the general assembly structure of this locking fixture. The locking fixture is composed of a fixing bolt 101 , a clamping sleeve 102 and a locking cap 103 . The clamping sleeve 102 has a tapered structure and is located inside the locking cap 103; the locking cap 103 is located at the upper end of the fixing bolt 101, and the two are locked to each other through internal and external threads; the locked filament 104 runs through the entire locking fixture along the central axis.

FIG. 2( a ) shows the internal structure of the fixing bolt 101 . The fixing bolt 101 mainly includes two parts: a bolt shaft 201 and a bolt cap 202 , wherein the bolt shaft 201 includes a lower through hole 203 inside, the lower through hole is a circular through hole, and the lower through hole runs through the entire bolt shaft 201 .

The length of the bolt cap 202 is slightly longer than the bolt shaft 302 of the locking cap 103 . Bolt cap 202 inside comprises upper through hole 206, and described upper through hole is a circular through hole, and the diameter of described upper through hole equals two-thirds of bolt cap 202 diameters, is made on the inner wall of upper through hole 206 Thread 205 , the radius of the upper through hole 206 is greater than the radius of the lower through hole 203 , the upper through hole 206 is used to assemble the locking cap 103 and accommodate the locking cap 103 and the clamping sleeve 102 .

The upper through hole 206 communicates with the lower through hole 203 . The lower through hole 203 and the upper through hole 206 form a stepped hole 207 , and the stepped surface 208 is located at the junction of the upper through hole 206 and the lower through hole 203 .

FIG. 2( b ) is a bottom view of the fixing bolt 101 . The exterior of the bolt shank 201 includes an arc portion 209 and a plane portion 210 , and the outer surface of the arc portion 209 includes an external thread 204 . The outer surface of the plane part 210 has no threads, and the plane part is used to prevent the locking fixture from twisting during operation.

The exterior of the bolt cap 202 is cylindrical. The clamping planes 211 are symmetrically located on both sides of the bolt cap 202 , the clamping planes are parallel to each other, and are used for the adjustable wrench to clamp the fixing bolt 101 and tighten the fixing bolt 101 .

FIG. 3( a ) shows the overall structure of the locking cap 103 . The rectangular slots 301 are evenly distributed on the bolt shaft 302, and the rectangular slots include four identical rectangular slots. The width of the rectangular slot 301 is slightly larger than the diameter of the locked filament 104 , and the length of the rectangular slot is equal to the length of the bolt shaft 302 .

FIG. 3( b ) shows the internal structure of the locking cap 103 , wherein the bolt shaft 302 includes two parts: an external thread 304 and an undercut 306 . The thread pattern of the external thread 304 matches the internal thread 205 , and the length of the external thread is equal to that of the internal thread 205 . The bolt shaft 302 is slightly longer than the upper through hole 206 . The bolt rod 302 contains a lower through hole 305 inside, the lower through hole is in the shape of a truncated cone for accommodating the clamping sleeve 102 with a tapered structure, and the height of the lower through hole is equal to the length of the external thread 304 .

Bolt cap 303 is regular hexagonal structure, and its center comprises upper through hole 309, and described upper through hole is cylindrical, and described upper through hole communicates with lower through hole 305, and the diameter of described upper through hole is equal to bolt cap 303 a quarter of the diameter.

Figure 4(a) shows the internal structure of the clamping sleeve for clamping a single filament. The clamping sleeve 102 is in the shape of a truncated cone, and its material is spring steel. The height of the clamping sleeve 102 is equal to the height of the lower through hole 305 , and the taper of the clamping sleeve 102 is equal to the taper of the lower through hole 305 . The diameter of the bottom surface 401 is larger than the diameter of the bottom surface 308 of the through hole. The upper bottom surface 403 is larger than the diameter of the upper bottom surface 307 of the through hole, that is, the volume of the clamping sleeve 102 is larger than the volume of the inner lower through hole 305 in the locking cap 103 .

Figure 4(b) shows a top view of the clamping sleeve for clamping a single filament. The filament clamping hole 402 is located at the central axis of the clamping sleeve 102, and the filament clamping hole 402 is a circular through hole. The filament clamping hole runs through the entire clamping sleeve 102, and vertically penetrates the lower bottom surface 401 and the upper surface. Bottom surface 403, the diameter of the filament clamping hole is equal to the diameter of the filament to be stretched. The rectangular through hole 404 is located on one side of the center of the clamping sleeve 102. The rectangular through hole runs through the entire clamping sleeve 102 and vertically runs through the lower bottom surface 401 and the upper bottom surface 403. The width of the rectangular through hole is slightly smaller than the filament clamping hole 402 The diameter of the rectangular through hole is completely communicated with the filament clamping hole 402 .

The specific operation method and steps of locking a filament are as follows: select a filament whose diameter is equal to the diameter of the filament clamping hole 402 . First, make the filament pass through the lower through hole 203 and the upper through hole 206 of the fixing bolt 101 and lead out; Put on the bottom surface 403 and lead out; then lead the thread into the lower through hole 305 of the locking cap 103, and pass through the upper through hole 309; put the clamping sleeve 102 inserted into the thread into the locking cap 103 Make the bolt rod 302 of the lock cap 103 align with the upper through hole 206 of the fixing bolt 101, and rotate the locking cap 103 to screw the external thread 304 into the upper through hole 206 of the fixing bolt 101.

Because the height of the clamping sleeve 102 is equal to the height of the lower through hole 305, the taper of the clamping sleeve 102 is equal to the taper of the lower through hole 305 of the locking cap 103, and the diameter of the lower bottom surface 401 of the clamping sleeve 102 is greater than that of the locking cap 103. The diameter of the lower bottom surface 308, the upper bottom surface 403 of the clamping sleeve 102 is greater than the diameter of the upper bottom surface 307 of the locking cap 103, so, after the clamping sleeve 102 is put into the lower through hole 305 of the locking cap 103, it will lead to A small portion of the clamping sleeve 102 at 401 is left outside the lower through hole 305 , and at the same time, there will be a distance between the upper bottom surface 403 and the upper bottom surface 307 .

When the external thread 304 is screwed into the upper through hole 206 to a certain depth, the clamping sleeve 102 will be in contact with the step surface 208 in the fixing bolt prior to the lock cap 103 ——the lower bottom surface 401 will be in contact with the step surface 208 . Continue to rotate the locking cap 103 inward, the clamping sleeve 102 is in conflict with the stepped surface 208, the clamping sleeve 102 is subjected to an upward thrust from the stepped surface 208, and the thrust makes the clamping sleeve 102 gradually pushed into the lower through hole 305— - The distance between the upper bottom surface 403 and the upper bottom surface 307 of the through hole is reduced.

After the lower through hole 305 is loaded with the clamping sleeve 102 larger than its own volume, the bolt rod 302 will be subjected to a force of expansion to the surroundings given by the clamping sleeve 102, and the expansion force is applied to the bolt cap 202 through the bolt rod 302 . At the same time, the bolt cap 202 also applies a force in the opposite direction to the bolt rod 302 , and the reaction force is applied to the clamping sleeve 102 through the bolt rod 302 . At the same time, the filament clamping hole 402 gradually becomes smaller, and the width of the rectangular through hole 404 is also gradually narrowed. At this point, a locking force is formed on the filament, resulting in a fastening effect.

As the depth of the bolt shank 302 screwed into the upper through hole 206 increases, the interaction force between the fixing bolt 101, the locking cap 103 and the clamping sleeve 102 also increases, and the pressure on the clamping sleeve 102 increases accordingly. The thread clamping hole 402 and the rectangular through hole 404 are also reduced, and the locking force of the clamping sleeve 102 on the thread is increased, thereby providing a large locking force.

Finally, pass the bolt rod 201 through the through hole conforming to its contour, and fix it with a nut, so as to prevent the locking fixture from twisting during the working process.

The second embodiment:

On the basis of the first embodiment, by increasing the number of thread clamping holes and rectangular grooves of the clamping sleeve, two non-adjacent filaments or three non-adjacent filaments can be locked at the same time.

Figure 5(a) shows the internal structure of the clamping sleeve for clamping two non-adjacent filaments. The clamping sleeve 501 is in the shape of a truncated cone, and its material is spring steel. The filament clamping holes 504 are symmetrically located on both sides of the center of the clamping sleeve 501, and the filament clamping holes 504 are two circular through holes with equal diameters, and the two circular through holes pass through the entire clamping sleeve 501. And vertically penetrate the lower bottom surface 502 and the upper bottom surface 503 , the two circular through holes are separated from each other by a certain distance.

Figure 5(b) shows a top view of the clamping sleeve used to clamp two non-adjacent filaments. Wherein the rectangular through hole 505 is symmetrically located on both sides of the center of the clamping sleeve 501, the rectangular through hole 505 runs through the entire clamping sleeve 501, and vertically runs through the lower bottom surface 502 and the upper bottom surface 503, the width of the rectangular through hole is equal to the locked filament The radius of 104, the rectangular through hole communicates with the filament clamping hole 504.

Figure 6(a) shows the internal structure of the clamping sleeve for clamping three non-adjacent filaments. The clamping sleeve 601 is in the shape of a truncated cone, and its material is spring steel. The filament clamping holes 604 are evenly distributed around the center of the clamping sleeve 601 . The filament clamping hole 604 includes three identical circular through holes, the three circular through holes all pass through the upper bottom surface 603 and the lower bottom surface 602, and the connecting line of the circle centers of the three circular through holes is a positive It is an equilateral triangle, and the three circular through holes are separated by a certain distance.

Figure 6(b) shows a top view of the clamping sleeve used to clamp three non-adjacent filaments. The rectangular through holes 605 are evenly distributed around the center of the clamping sleeve 601 . The rectangular through holes 605 are three identical rectangular through holes, the three rectangular through holes all pass through the entire clamping sleeve 501, and vertically pass through the upper bottom surface 603 and the lower bottom surface 602, and the width of the three rectangular through holes is equal to The radius of the locked filament 104 , the three rectangular through holes communicate with the filament clamping hole 604 respectively.

The specific operation method and steps of locking two non-adjacent filaments are as follows: select two filaments with the same diameter, and the diameter of the filaments should be equal to the diameter of the filament clamping hole 504 . First, the filaments pass through the lower through hole 203 and the upper through hole 206 of the fixing bolt 101 in sequence and are drawn out; 503 lead out; then lead the thin wire through the lower through hole 305 of the locking cap 103, and pass through the upper through hole 309; Inside the hole 305 ; align the bolt rod 302 with the upper through hole 206 of the fixing bolt 101 and rotate the locking cap 103 , and screw the external thread 304 into the upper through hole 206 of the fixing bolt 101 .

Because the height of the clamping sleeve 501 is equal to the height of the lower through hole 305, the taper of the clamping sleeve 501 is equal to the taper of the lower through hole 305, the diameter of the lower bottom surface 502 is greater than the diameter of the lower bottom surface 308 of the through hole, and the upper bottom surface 503 is larger than that of the upper bottom surface of the through hole. The diameter of the bottom surface 307, so after the clamping sleeve 501 is put into the lower through hole 305, a small part of the clamping sleeve 501 near the lower bottom surface 502 is left outside the lower through hole 305, and the upper bottom surface 503 and the through hole are simultaneously connected. There will be a distance between the upper and lower surfaces 307 .

When the external thread 304 is screwed into the upper through hole 206 to a certain depth, the clamping sleeve 501 will be in contact with the stepped surface 208 before the locking cap 103 ——the lower bottom surface 502 will be in contact with the stepped surface 208 . Continue to rotate the locking cap 103 inward, the clamping sleeve 501 is in conflict with the stepped surface 208, and the clamping sleeve 501 receives an upward thrust from the stepped surface 208, and the thrust makes the clamping sleeve 501 gradually pushed into the lower through hole 305— - The distance between the upper bottom surface 503 and the upper bottom surface 307 of the through hole is reduced.

After the lower through hole 305 is loaded with a clamping sleeve 501 larger than its own volume, the bolt rod 302 will be subjected to a force of outward expansion given by the clamping sleeve 501, and the expansion force is applied to the bolt cap through the bolt rod 302 202. At the same time, the bolt cap 202 also applies a force in the opposite direction to the bolt rod 302, and the reaction force is applied to the clamping sleeve 501 through the bolt rod 302, so that the filament clamping hole 504 gradually shrinks toward the center , the width of the rectangular through hole 505 will gradually become narrower, so far, a locking force is formed on the filament and a fastening effect is produced.

As the depth of the bolt shank 302 screwed into the upper through hole 206 increases, the interaction force between the fixing bolt 101, the locking cap 103, and the clamping sleeve 501 also increases, that is, the pressure on the clamping sleeve 501 increases accordingly. increase, and the tightening force of the clamping sleeve 501 on the filament increases accordingly, thereby providing a large locking force.

Finally, pass the bolt rod 201 through the through hole conforming to its contour, and fix it with a nut, so as to prevent the locking fixture from twisting during the working process.

To lock three non-adjacent filaments, the operation method and steps are the same as those described above for locking two non-adjacent filaments.

The third embodiment:

On the basis of the first embodiment, by increasing the number of thread clamping holes and rectangular slots of the clamping sleeve, two filaments with tangential outer diameters or three filaments with tangential outer diameters can be locked at the same time.

Figure 7(a) shows the internal structure of the clamping sleeve used to clamp two filaments with tangential outer diameters. The clamping sleeve 701 is in the shape of a truncated cone, and its material is spring steel. The filament clamping hole 704 is two circular through holes with tangential outer diameters, the two circular through holes are tangent to the central axis of the clamping sleeve 701, and the diameters of the two circular through holes are the same, so The above two circular through holes both vertically penetrate the lower bottom surface 702 and the upper bottom surface 703 .

Fig. 7(b) shows a sectional view of a clamping sleeve for clamping two filaments with tangential outer diameters. Wherein the rectangular slot 705 is symmetrically located on both sides of the center of the clamping sleeve 701, the rectangular slot starts from the upper bottom surface 703, and the depth of the rectangular slot is 4/5 of the length of the clamping sleeve 701. The width of the rectangular groove is equal to the radius of the locked filament 104 , and the rectangular groove communicates with the filament clamping hole 704 .

Fig. 8(a) shows a sectional view of a clamping sleeve for clamping three filaments with tangential outer diameters. The clamping sleeve 801 is in the shape of a truncated cone, and its material is spring steel. The filament clamping holes 804 are evenly distributed around the center of the clamping sleeve 801. The filament clamping holes 804 include three identical circular through holes, and the three circular through holes are circumscribed in pairs. Each circular through hole runs through the lower bottom surface 802 and the upper bottom surface 803.

Figure 8(b) shows a top view of the clamping sleeve used to clamp three filaments with tangential outer diameters. The rectangular slots 805 are evenly distributed around the center of the clamping sleeve 801 . The rectangular slot 805 is three identical rectangular slots, the depth of the three rectangular slots is four-fifths of the length of the clamping sleeve 801, and the width of the three rectangular slots is equal to the radius of the locked filament 104 , the three rectangular slots communicate with the filament clamping holes 804 respectively.

The specific operation method and steps of locking two filaments with tangential outer diameters are as follows: select two filaments with the same diameter, and the diameter of the filaments should be equal to the diameter of the filament clamping hole 704 . First, the filaments pass through the lower through hole 203 and the upper through hole 206 of the fixing bolt 101 in sequence and are drawn out; 703 lead out; then lead the thin wire through the lower through hole 305 in the locking cap 103, and pass through the upper through hole 309; put the clamping sleeve 701 that has penetrated the thin wire into the lower through hole in the locking cap 103 Inside the hole 305; make the bolt rod 302 in the locking cap 103 align with the upper through hole 206 in the fixing bolt 101 and rotate the locking cap 103 to screw the external thread 304 into the upper through hole 206 of the fixing bolt 101.

Because the height of the clamping sleeve 701 is equal to the height of the lower through hole 305, the taper of the clamping sleeve 701 is equal to the taper of the lower through hole 305, the diameter of the lower bottom surface 702 is greater than the diameter of the lower bottom surface 308 of the through hole, and the upper bottom surface 703 is larger than the upper surface of the through hole. The diameter of the bottom surface 307, so, put the clamping sleeve 701 in the lower through hole 305, cause a little part of the clamping sleeve 701 near the lower bottom surface 702 to be left outside the lower through hole 305, and cause the upper bottom surface 703 to be in contact with the through hole There will be a distance between the upper and lower surfaces 307 .

When the external thread 304 is screwed into the upper through hole 206 to a certain depth, the clamping sleeve 701 will be in contact with the step surface 208 before the locking cap 103 ——the lower bottom surface 702 will be in contact with the step surface 208 . Continue to rotate the locking cap 103 inward, the clamping sleeve 701 is in conflict with the stepped surface 208, the clamping sleeve 701 is subjected to an upward force from the stepped surface 208, and the force makes the clamping sleeve 701 gradually pushed down the through hole 305—the distance between the upper bottom surface 703 and the upper bottom surface 307 of the through hole is reduced.

After the lower through hole 305 is loaded with a clamping sleeve 701 larger than its own volume, the bolt rod 302 will be subjected to a force of outward expansion given by the clamping sleeve 701, and the expansion force is applied to the bolt cap through the bolt rod 302 202; at the same time, the bolt cap 202 also exerts a force in the opposite direction to the bolt rod 302, and the reaction force is applied to the clamping sleeve 701 through the bolt rod 302, thus, the filament clamping hole 704 gradually moves toward the center When shrinking, the width of the rectangular slot 705 will gradually become smaller. So far, a locking force is formed on the filament, resulting in a fastening effect.

As the depth of the bolt shank 302 screwed into the upper through hole 206 increases, the interaction force between the fixing bolt 101, the locking cap 103 and the clamping sleeve 701 also increases, and the force on the clamping sleeve 701 increases accordingly. increase, and the tightening force of the clamping sleeve 501 on the filament increases accordingly, thereby providing a large locking force.

Finally, pass the bolt rod 201 through the through hole conforming to its contour, and fix it with a nut, so as to prevent the locking fixture from twisting during the working process.

For locking three filaments with tangential outer diameters, the operation method and steps are the same as those described above for locking two filaments with tangential outer diameters.

The fourth embodiment:

On the basis of the first embodiment, the number of thread clamping holes and rectangular grooves of the clamping sleeve is increased, and at the same time, a movable inner core is added to simultaneously lock multiple filaments.

Figure 9(a) shows the internal structure of the clamping sleeve for clamping multiple filaments. The clamping sleeve 901 is in the shape of a truncated cone, and its material is spring steel, including a lower bottom surface 902 , an upper bottom surface 903 and a movable inner core 905 .

Fig. 9(b) is a top view of a clamping sleeve for clamping multiple filaments with tangential outer diameters. The clamping sleeve 901 includes an outer shell portion 904 and a movable inner core 905 .

Fig. 10(a) shows the internal structure of the housing part of the clamping sleeve for clamping multiple filaments with tangential outer diameters. The shell part 904 is in the shape of a truncated cone, and includes a lower bottom surface 902 , a quincunx-shaped filament clamping hole 1001 and an upper bottom surface 903 .

Fig. 10(b) is a partial top view of the housing of the clamping sleeve for clamping multiple filaments with tangential outer diameters. Wherein the quincunx-shaped filament clamping hole 1001 is made up of a plurality of semicircular vertical grooves 1003, the outer diameters of the plurality of vertical grooves 1003 are tangent, and the radius of the plurality of vertical grooves 1003 is equal to The radius of the filament 104 to be locked. The central axis of the quincunx-shaped clamping hole 1001 coincides with the central axis of the shell part 904 .

The rectangular slot 1002 is symmetrically located on both sides of the center of the shell part 904, the rectangular slot starts from the upper bottom surface 903, the length of the rectangular slot is equal to four-fifths of the length of the clamping sleeve 901, and the rectangular slot 1002 The width is equal to the radius of the locked filament 104 .

Fig. 11(a) shows the front view of the movable inner core in the clamping sleeve for clamping multiple filaments with tangential outer diameters. The movable inner core 905 is a cylinder and has a solid structure, and the height of the movable inner core is equal to that of the shell part 904 .

Fig. 11(b) shows a top view of the movable inner core in the clamping sleeve for clamping multiple filaments with tangential outer diameters. The vertical grooves 1101 are a plurality of semicircular grooves attached to the outer surface of the movable inner core 905 , and the radius of the semicircular grooves is equal to the radius of the locked filament 104 .

The specific operation method and steps of locking multiple filaments are as follows: select multiple filaments with the same diameter, and the diameter of the filaments is equal to the diameter of the filament clamping hole 402 . First, put the movable inner core 905 vertically into the shell part 904; pass the filaments through the lower through hole 203 and the upper through hole 206 of the fixing bolt 101 in turn and draw them out; then pass the drawn filaments through the lower bottom surface 902 Insert the clamping sleeve 901, pass through the clamping hole 1001 of the quincunx-shaped filament and draw it out from the upper bottom surface 903; then pass the drawn filament through the lower through hole 305 and the upper through hole 309 of the locking cap 103; Put the clamping sleeve 901 with the filament into the middle and lower through hole 305 of the locking cap 103; make the bolt rod 302 of the locking cap 103 align with the upper through hole 206 in the fixing bolt 101 and rotate, and lock the cap 103. The external thread 304 is screwed into the upper through hole 206 in the fixing bolt 101 .

Because the height of the clamping sleeve 901 is equal to the height of the lower through hole 305, the taper of the clamping sleeve 901 is equal to the taper of the lower through hole 305, the diameter of the lower bottom surface 902 is greater than the diameter of the lower bottom surface 308 of the through hole, and the upper bottom surface 903 is larger than the upper surface of the through hole. The diameter of the bottom surface 307, after putting the clamping sleeve into the lower through hole 305, causes a small part of the clamping sleeve 901 near the lower bottom surface 902 to be left outside the lower through hole 305, resulting in the upper bottom surface 903 and the upper bottom surface 307 of the through hole at the same time. There will be a space in between.

When the external thread 304 is screwed into the upper through hole 206 to a certain depth, the clamping sleeve 901 will be in contact with the step surface 208 before the locking cap 103 ——the lower bottom surface 902 will be in contact with the step surface 208 . Continue to rotate the locking cap 103 inward, the clamping sleeve 901 is in conflict with the stepped surface 208, and the clamping sleeve 901 is subjected to an upward force from the stepped surface 208, and the active force makes the clamping sleeve 901 gradually pushed down the through hole 305—the distance between the upper bottom surface 403 and the upper bottom surface 307 of the through hole is reduced.

The lower through hole 305 is filled with an object larger than its own capacity, so that the bolt rod 302 will be subjected to a force of outward expansion given by the clamping sleeve 901 . The expansion force is applied to the bolt cap 202 through the bolt shank 302 . At the same time, the bolt cap 202 also exerts a force in the opposite direction to the bolt rod 302 , and the reaction force is applied to the clamping sleeve 901 through the bolt rod 302 . As a result, the clamping hole 1001 of the quincunx-shaped filament gradually shrinks toward the center of the clamping sleeve 901, and the width of the rectangular slot 1002 also gradually decreases. At the same time, the contraction force of the quincunx-shaped filament clamping hole 1001 and the rectangular slot 1002 will be applied to the movable inner core 905 through the locked filament. The movable inner core 905 is a solid body, and when it is stressed, it produces a reaction force of the same size to the locked filament, so far, a locking force is formed on the filament, resulting in a fastening effect.

As the depth of the bolt shank 302 screwed into the upper through hole 206 increases, the interaction force between the fixing bolt 101, the locking cap 103 and the clamping sleeve 901 also increases, and the pressure on the clamping sleeve 901 increases accordingly. , and the tightening force of the clamping sleeve 901 on the filament increases accordingly, thereby providing a large locking force.

Finally, pass the bolt rod 201 through the through hole conforming to its contour, and fix it with a nut, so as to prevent the locking fixture from twisting during the working process.

Claims (9)

1. A filament locking fixture, characterized in that it comprises: The fixing bolt (101), which contains a circular threaded through hole inside, is used to accommodate the clamping sleeve (102) and the locking cap (103); The clamping sleeve (102) has a truncated cone shape, and its interior contains a circular filament clamping hole (402) with a diameter equal to the diameter of the locked filament (104). The clamping sleeve (102) is used to guide and clamping locked filament (104); and The lock cap (103) contains a frustum-shaped through hole (305) inside, and its outer surface is distributed with threads matching the inner threaded hole pattern of the fixing bolt (101); The clamping sleeve (102) is located inside the locking cap (103), and the locking cap (103) is located at the upper end of the fixing bolt (101), and the locking cap (103) and the fixing bolt (101) and the clamping The three of cover (102) cooperate with each other to lock the locked filament (104). 2. The filament locking fixture according to claim 1, characterized in that, the fixing bolt (101) comprises a bolt shank (201) and a bolt cap (202), and the inside of the bolt shank (201) comprises a circular The through hole; the bolt cap (202) is cylindrical in shape, and its outer two sides include two parallel clamping planes (211). 3. The filament locking fixture according to claim 1, characterized in that, the material of the clamping sleeve (102) is spring steel, and the filament clamping hole (402) is located on the central axis of the clamping sleeve (102) One side of the central axis of the clamping sleeve (102) includes a rectangular through hole (404), and the rectangular through hole (404) communicates with the filament clamping hole (402). 4. The filament locking fixture according to claim 1, characterized in that, the locking cap (103) comprises a bolt shank (302) and a bolt cap (303), on the bolt shank (302), surrounding the Four rectangular slots (301) are evenly distributed in the circumferential direction of the bolt shaft (302), and the bolt cap (303) has a regular hexagonal structure. 5. The filament locking fixture according to claim 2 or 4, characterized in that, the clamping sleeve (501) comprises two filament clamping holes (504) and two rectangular through holes (505), The two filament clamping holes (504) are symmetrically located on both sides of the center of the clamping sleeve (501), and the two rectangular through holes (505) communicate with the two filament clamping holes (504) respectively. Tight clamps can lock two non-adjacent filaments. 6. The filament locking fixture according to claim 2 or 4, characterized in that, the clamping sleeve (601) comprises three filament clamping holes (604) and three rectangular through holes (605), Three filament clamping holes (604) are evenly distributed around the center of the clamping sleeve, three rectangular through holes (605) are evenly distributed around the center of the clamping sleeve (601), and the three rectangular through holes (605 ) respectively communicate with three filament clamping holes (604), and the locking fixture can lock three non-adjacent filaments. 7. The filament locking fixture according to claim 2 or 4, characterized in that, the clamping sleeve (701) comprises two filament clamping holes (704) and two rectangular slots (705), The outer diameters of the two filament clamping holes (704) are tangent to the center of the clamping sleeve (701), and the two rectangular slots (705) are symmetrically located on both sides of the center of the clamping sleeve (701). The slots (705) communicate with the two filament clamping holes (704) respectively, and the locking fixture can lock two filaments with tangential outer diameters. 8. The filament locking fixture according to claim 2 or 4, characterized in that, the clamping sleeve (801) comprises three filament clamping holes (804) and three rectangular slots (805), The three filament clamping holes (804) are evenly distributed around the center of the clamping sleeve (801), the three filament clamping holes (804) are circumscribed in pairs, and the three rectangular slots (805) are evenly distributed Around the center of the clamping sleeve (801), the three rectangular slots (805) communicate with the three filament clamping holes (804) respectively, and the locking fixture can lock three filaments with tangential outer diameters. 9. The filament locking fixture according to claim 2 or 4, characterized in that, the clamping sleeve (901) is divided into an outer shell part (904) and a movable inner core (905); The housing part (904) includes a quincunx-shaped filament clamping hole (1001) and two rectangular slots (1002), the quincunx-shaped clamping hole (1001) is located in the center of the The wire clamping hole (1001) comprises a plurality of vertical grooves (1003), the vertical grooves (1003) are semicircular, the outer diameters of the vertical grooves (1003) are tangent, and the rectangular grooves ( 1002) symmetrically located on both sides of the center of the shell part (904), the two rectangular slots (1002) communicate with the quincunx-shaped filament clamping hole (1001); The movable inner core (905) is cylindrical in shape, and the outer surface of the movable inner core (905) includes a plurality of vertical grooves (1101), the vertical grooves (1101) are semicircular, and the vertical grooves (1101) are semicircular. The outer diameter of the straight groove (1101) is tangent; The locking fixture can lock a plurality of outer diameter tangential filaments.

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