CN117364626A

CN117364626A - Quick steel strand threading device and use method

Info

Publication number: CN117364626A
Application number: CN202311115857.3A
Authority: CN
Inventors: 王朋林; 吴桐; 胡非凡; 吴师彪; 覃俊维
Original assignee: China First Metallurgical Group Co Ltd
Current assignee: China First Metallurgical Group Co Ltd
Priority date: 2023-08-31
Filing date: 2023-08-31
Publication date: 2024-01-09

Abstract

The utility model discloses a steel strand quick beam penetrating device and a using method, wherein the beam penetrating device comprises the following components: a guide ball; the fixing piece is provided with a steel strand fixing mechanism, and the steel strand fixing mechanism can fix a plurality of steel strands at the same time; the universal connecting piece is respectively connected with the guide ball and the fixing piece, so that the guide ball and the fixing piece rotate in a universal way relatively; arranging the guide ball, the fixing piece and the universal connecting piece in sequence according to the same direction, wherein the fixing piece and the universal connecting piece are completely positioned in a projection area of the guide ball in the direction; the utility model can simultaneously penetrate a plurality of steel strands at a time, and compared with the prior art that only one steel strand can be penetrated at a time, the threading efficiency is greatly improved. And because a plurality of steel strands are penetrated simultaneously, no subsequent threading work exists in the same corrugated pipe, and the problem of mutual blocking between the penetrated steel strands and the newly penetrated steel strands is effectively avoided.

Description

Quick steel strand threading device and use method

Technical Field

The utility model relates to the technical field of steel strand construction, in particular to a steel strand quick-threading device and a use method thereof.

Background

The prestressing force is widely applied in concrete engineering, and is commonly known as box girder and T girder in bridge engineering. The tensioning method is divided into a pretensioning method and a post-tensioning method, wherein the pretensioning method is to perform prestress tensioning on the steel strand after binding the steel bar, and then perform concrete pouring. The post-tensioning method is to firstly embed corrugated pipes or other pipelines in the steel bars, then perform concrete pouring, and finally stretch the steel strands into the corrugated pipes. When the steel strands are in beam penetration, the steel strands are often in direct contact with the corrugated pipe, so that the corrugated pipe is easily damaged, and the penetrated steel strands and the newly penetrated steel strands can be blocked mutually, so that the beam penetration process is time-consuming and labor-consuming, and the phenomenon is particularly obvious in beam penetration of the steel strands of the curve section of the prestressed pipeline.

The utility model patent with the application number of CN201020254089.1 provides a bullet-shaped sleeve head for penetrating a steel strand of a curve section of a prestressed pipeline, the bullet-shaped sleeve head is sleeved at the front end part of the steel strand, the rear half part of the bullet-shaped sleeve head is a steel sleeve, the front part of the steel sleeve is inserted with a round steel head with the diameter identical to the inner diameter of the steel sleeve, the rear end of the round steel head is inserted into the steel sleeve for fixed connection, the front part of the round steel head is bullet-shaped, and the round steel head is welded between the outer ring of a socket inserted into the steel sleeve and the front end surface of the steel sleeve. The bullet-shaped sleeve head can solve the problem that the prestress pipeline curve section is difficult to penetrate bundles, avoids the damage to the pipeline caused by the fact that the prestress steel bundles directly contact the pipeline in the bundle penetrating process, ensures the prestress construction quality, is simple and convenient to manufacture, saves time and labor in construction, can be reused, and is low in cost.

The bullet-shaped sleeve head for threading the steel strands at the curve section of the prestressed pipeline can be widely applied to post-tensioning prestressed steel strand threading construction, and particularly threading at the curve section. But it can only wear one steel strand wire at a time, and threading efficiency is low, and in the follow-up threading in-process, still can't avoid the problem of blockking each other between the steel strand wire that has worn and the new steel strand wire that wears, can be along with the increase of threading quantity, the threading becomes more and more difficult.

Disclosure of Invention

The utility model aims to provide a rapid steel strand threading device and a use method thereof, and aims to solve the problems that in the prior art, only one steel strand can be threaded at a time, the threading efficiency is low, and in the subsequent threading process, the threaded steel strands cannot be blocked with the newly threaded steel strands.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a steel strand quick threading device comprising:

a guide ball;

the fixing piece is provided with a steel strand fixing mechanism, and the steel strand fixing mechanism can fix a plurality of steel strands at the same time;

the universal connecting piece is respectively connected with the guide ball and the fixing piece, so that the guide ball and the fixing piece rotate in a universal way relatively;

the guide ball, the fixing piece and the universal connecting piece are sequentially arranged in the same direction, and the fixing piece and the universal connecting piece are completely located in the projection area of the guide ball in the direction.

Further, the universal connecting piece comprises a first connecting piece, a second connecting piece, a middle piece and four short shafts, the first connecting piece and the second connecting piece are respectively connected with the guide ball and the fixing piece, the first connecting piece and the second connecting piece are respectively provided with a mouth groove structure capable of accommodating the middle piece, two hinge holes are respectively formed in the inner wall of the mouth groove structure of the first connecting piece and the inner wall of the mouth groove structure of the second connecting piece, and the two hinge holes on each connecting piece are respectively coaxial with the central axis; the four short shafts are all arranged on the middle piece, the four short shafts are equally divided into two groups, the two short shafts of each group are respectively concentric with the central axis, the central axes of the two groups of short shafts are mutually perpendicular, the middle piece is respectively hinged with the first connecting piece and the second connecting piece through the four short shafts, and the four short shafts are respectively inserted into four hinge holes formed in the first connecting piece and the second connecting piece.

Further, the middle piece is of a circular tube structure, four mounting holes are formed in the tube wall of the middle piece and are uniformly formed in the circumferential direction of the middle piece, and four short shafts hinged to the first connecting piece and the second connecting piece are respectively inserted into one mounting hole and fixed to the middle piece.

Further, the first connecting piece and the second connecting piece are of semicircular structures, the outer diameters of the first connecting piece and the second connecting piece are smaller than the diameter of the guide ball, the inner sides of the two ends of the first connecting piece are respectively provided with a hinge hole, and the inner sides of the two ends of the second connecting piece are respectively provided with a hinge hole.

Further, the fixing piece comprises a cylinder with one sealed end and one opened end, the outer diameter of the cylinder is smaller than the diameter of the guide ball, the steel strand fixing mechanism is arranged on the cylinder, and the middle part of the sealed end of the cylinder is connected with the universal connecting piece; the steel strand fixing mechanism comprises a steel belt, a fixing block and a fixing bolt, wherein the fixing block is arranged on the outer wall of the cylinder, through holes for the steel belt to pass through are formed in the fixing block and the wall of the cylinder, and the through holes arranged on the fixing block and the wall of the cylinder are communicated; one end of the steel belt is fixed on the inner wall of the cylinder and fixed at the edge position of a through hole arranged on the cylinder, the other end of the steel belt penetrates through the through hole arranged on the wall of the cylinder and the fixed block and is positioned outside the cylinder, the steel belt is annular in the cylinder, and an anti-slip structure is arranged on the inner wall of the annular steel belt; the fixing block is provided with a threaded hole leading to a through hole of the fixing block, and the threaded hole is provided with a fixing bolt.

Further, the steel strand fixing mechanism further comprises a limit bolt, a threaded hole for installing the limit bolt is formed in the outer wall of the cylinder, the limit bolt is installed on the outer wall of the cylinder, a plurality of limit bolts are arranged along the circumferential direction of the cylinder, and the part, located outside the cylinder, of the steel belt is pressed and fixed on the outer wall of the cylinder by the limit bolt.

Further, the fixing piece comprises a cylinder with one sealed end and one open end, the outer diameter of the cylinder is smaller than the diameter of the guide ball, the steel strand fixing mechanism is arranged on the cylinder, the middle part of the sealed end of the cylinder is connected with the universal connecting piece, and the open end of the cylinder is provided with a threaded connection structure; the steel strand fixing mechanism comprises a round pipe fitting and a disc, wherein one end of the round pipe fitting is provided with a threaded structure matched with a threaded connection structure at the opening end of the cylinder, and the round pipe fitting is connected with the cylinder through the matched threaded connection structure and the threaded structure; the disc is arranged at one end of the circular pipe fitting, which is provided with a threaded structure, a plurality of through holes are formed in the disc, a fixing short pipe is arranged at each through hole, a threaded through hole leading into the pipe is formed in the pipe wall of the fixing short pipe, and a fixing bolt is arranged in the threaded through hole; the steel strand is penetrated by the through hole of the disc and the fixing short pipe and is fixed by the screwed fixing bolt.

Further, the fixing piece comprises a cylinder with one sealed end and one open end, the outer diameter of the cylinder is smaller than the diameter of the guide ball, the steel strand fixing mechanism is arranged on the cylinder, the middle part of the sealed end of the cylinder is connected with the universal connecting piece, and the open end of the cylinder is provided with a threaded connection structure; the steel strand fixing mechanism comprises a round pipe fitting and a disc, wherein one end of the round pipe fitting is provided with a threaded structure matched with a threaded connection structure at the opening end of the cylinder, and the round pipe fitting is connected with the cylinder through the matched threaded connection structure and the threaded structure; the circular disc is arranged at one end of the circular pipe fitting, which is provided with a threaded structure, a rectangular through hole is formed in the circular disc, a rectangular fixing frame is arranged at the rectangular through hole, a left clamping plate and a right clamping plate are arranged in the rectangular fixing frame, and anti-skid structures are arranged on the clamping surfaces of the two clamping plates; the front frame and the rear frame of the rectangular fixing frame are respectively provided with a guide rectangular chute, the length direction of the guide rectangular chute is along the left-right direction, the length direction of the clamping plate is along the front-back direction, two ends of the length direction of the clamping plate are respectively provided with a sliding block structure matched with the guide rectangular chute, and the sliding block structures are positioned in the guide rectangular chute; screw thread through holes are formed in the left frame and the right frame of the rectangular fixing frame, compression bolts are arranged in the screw thread through holes, and each compression bolt is used for driving two clamping plates to be close to each other so as to compress steel strands penetrating through the rectangular through holes of the disc and the rectangular fixing frame.

Further, an internal thread structure is arranged on the inner wall of the opening end of the cylinder, an external thread structure is arranged on the outer wall of one end of the circular pipe fitting, and when the cylinder is connected with the circular pipe fitting, the external thread structure of the circular pipe fitting is installed in the internal thread structure of the cylinder in a threaded mode.

According to a second aspect of the utility model, the utility model provides a method for using a steel strand quick-threading device, comprising the following steps:

s100, fixing one ends of a plurality of steel strands needing to be penetrated by using a steel strand fixing mechanism of a fixing piece;

s200, inserting the guide ball, the universal connecting piece and the fixing piece into the corrugated pipe;

s300, carrying out the beam threading operation of a plurality of steel strands at one time under the assistance of a beam threading machine, so that the plurality of steel strands are threaded from one end of a corrugated pipe to the other end under the driving of the beam threading machine and the guiding action of a guide ball;

s400, after each steel strand passes through the corrugated pipe to the other end, operating the steel strand fixing mechanism, and loosening each steel strand, so that the strand penetrating work of a plurality of steel strands is completed.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model can simultaneously penetrate a plurality of steel strands at a time, and compared with the prior art that only one steel strand can be penetrated at a time, the threading efficiency is greatly improved.

2. Because a plurality of steel strands are penetrated simultaneously, no subsequent threading work exists in the same corrugated pipe, and the problem of mutual blocking between the penetrated steel strands and the newly penetrated steel strands is effectively avoided.

3. The utility model provides a plurality of steel strand fixing mechanisms, improves the flexibility of the steel strand threading work, and improves the applicability and the use flexibility to a certain extent.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present utility model in an oblique top view;

FIG. 2 is a schematic perspective view of embodiment 1 of the present utility model in a diagonal bottom view;

fig. 3 is a schematic perspective view of embodiment 2 and embodiment 3 of the present utility model in an oblique top view;

FIG. 4 is a schematic perspective view of the universal joint of the present utility model;

FIG. 5 is a front view of the universal joint of the present utility model;

FIG. 6 is a schematic perspective view of a steel strand fixing mechanism of a fixing member according to embodiment 2 of the present utility model;

FIG. 7 is a plan view of a steel strand fixing mechanism of a fixing member according to embodiment 2 of the present utility model;

FIG. 8 is a schematic perspective view of a steel strand fixing mechanism of a fixing member according to embodiment 3 of the present utility model;

fig. 9 is a plan view of a steel strand fixing mechanism of a fixing member according to embodiment 3 of the present utility model.

Reference numerals: 1. a guide ball; 2. a universal connection; 201. a first connector; 202. a second connector; 203. a middleware; 204. a short shaft; 3. a fixing member; 301. a cylinder; 302. a steel strip; 303. a fixed block; 304. a fixing bolt; 305. a limit bolt; 306. round pipe fittings; 307. a disc; 308. fixing the short pipe; 309. a fixing bolt; 310. a compression bolt; 311. a rectangular fixing frame; 312. a clamping plate; 313. guiding the rectangular chute; 314. and a slider structure.

Detailed Description

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The following is further described with reference to the accompanying drawings and specific examples:

example 1

The quick steel strand threading device comprises a guide ball 1, a universal connecting piece 2 and a fixing piece 3 as shown in fig. 1 and 2. The guide ball 1 can be a solid ball made of plastic or a hollow ball made of metal material, and the guide ball 1 can be a complete spherical structure or a non-complete spherical structure which is more than half of a hemisphere. The size of the guide ball 1 can be determined according to the inner diameter of the corrugated pipe, the diameter of the guide ball 1 is required to be smaller than the inner diameter of the corrugated pipe, and a notch is reserved at the lower part of the guide ball for being connected with the universal connecting piece 2.

As shown in fig. 4 and 5, the universal joint 2 includes a first joint 201, a second joint 202, an intermediate member 203, and four stub shafts 204. The first connecting piece 201 and the second connecting piece 202 are of semicircular structures, the outer diameters of the first connecting piece 201 and the second connecting piece 202 are smaller than the diameter of the guide ball 1, the inner sides of the two ends of the first connecting piece 201 are respectively provided with a hinge hole, and the inner sides of the two ends of the second connecting piece 202 are respectively provided with a hinge hole. The middle piece 203 is of a circular tube structure, four mounting holes are formed in the tube wall of the middle piece 203 and are uniformly formed in the circumferential direction of the middle piece 203, and the central axes of two non-adjacent mounting holes among the four mounting holes are collinear, and the central axes of two adjacent mounting holes are perpendicular to each other. A short shaft 204 is arranged in each of the four mounting holes, and the short shaft 204 is welded with the middle piece 203. The intermediate member 203 is hingedly connected to the first and second connection members 201 and 202 by four stub shafts 204, and the four stub shafts 204 are respectively hinged in four hinge holes provided in the first and second connection members 201 and 202. The first and second connection members 201 and 202 are connected to the guide ball 1 and the fixing member 3, respectively, such that the guide ball 1 and the fixing member 3 can be rotated in a universal direction with respect to each other.

As shown in fig. 2, the fixing member 3 includes a cylinder 301 having one end sealed and one end opened, and a steel strand fixing mechanism provided on the cylinder 301. The outer diameter of the cylinder 301 is smaller than the diameter of the guide ball 1, and the middle part of the sealed end of the cylinder 301 is connected with the second connecting piece 202 of the universal connecting piece 2. The steel strand fixing mechanism comprises a steel belt 302, a fixing block 303 and a fixing bolt 304, wherein the fixing block 303 is arranged on the outer wall of the cylinder 301, through holes through which the steel belt 302 can pass are formed in the fixing block 303 and the wall of the cylinder 301, and the through holes formed in the fixing block 303 and the wall of the cylinder 301 are communicated. One end of the steel belt 302 is fixed on the inner wall of the cylinder 301 and fixed at the edge position of a through hole formed in the cylinder 301, the other end of the steel belt 302 penetrates through the wall of the cylinder 301 and the through hole formed in the fixing block 303 to be located outside the cylinder 301, the steel belt 302 is annular in the cylinder 301 and is provided with a certain accommodating space, the steel belt 302 can be used for accommodating and fixing steel strands, an anti-slip structure is arranged on the inner wall of the annular steel belt 302, the anti-slip structure can be an anti-slip structure or an anti-slip raised strip and other structure, as one end of the steel belt 302 is fixed on the inner wall of the cylinder 301 and fixed at the edge position of the through hole formed in the cylinder 301, and the anti-slip structure is arranged on the inner wall of the annular steel belt 302, all the peripheral steel strands are in pressing contact with the steel belt 302 with the anti-slip structure, and the problem that the steel strands are separated from the annular steel belt 302 due to slipping can be effectively prevented. The fixing block 303 is provided with a threaded hole leading to the through hole, and the threaded hole is provided with a fixing bolt 304, and the fixing bolt 304 is screwed down to fix the steel belt 302, so that the steel belt 302 is prevented from sliding.

As shown in fig. 2, the steel strand fixing mechanism further includes a limit bolt 305, a threaded hole for installing the limit bolt 305 is provided on the outer wall of the cylinder 301, the limit bolt 305 is installed on the outer wall of the cylinder 301, a plurality of limit bolts 305 are provided along the circumferential direction of the cylinder 301, and the portion of the steel strip 302 located outside the cylinder 301 is pressed and fixed on the outer wall of the cylinder 301 by the limit bolt 305, so that the problem that the steel strip 302 located outside the cylinder 301 is far away from the cylinder 301, and the threading is blocked and the corrugated pipe is damaged can be prevented.

The application method of the steel strand quick beam threading device provided by the embodiment comprises the following steps:

s100, inserting one ends of a plurality of steel strands to be penetrated into an annular steel belt 302 in a cylinder 301, and pulling the steel belt 302 positioned outside the cylinder 301 by external force, so that the annular steel belt 302 in the cylinder 301 clamps each steel strand. The fixing bolts 304 are then tightened, and the steel belt 302 located outside the cylinder 301 is pressed and fixed on the outer wall of the cylinder 301 by the limit bolts 305.

S200, inserting the guide ball 1, the universal connector 2 and the fixing piece 3 into the corrugated pipe.

S300, carrying out the beam threading operation of a plurality of steel strands at one time under the assistance of a beam threading machine, so that the plurality of steel strands penetrate from one end to the other end of the corrugated pipe under the driving of the beam threading machine and the guiding action of the guide ball 1.

S400, after each steel strand passes through the corrugated pipe to the other end, the fixing bolt 304 and the limiting bolt 305 are unscrewed, and each steel strand is loosened, so that the strand penetrating work of a plurality of steel strands is completed.

Example 2

A steel strand quick-threading device, as shown in figure 3, comprises a guide ball 1, a universal connecting piece 2 and a fixing piece 3. The guide ball 1 can be a solid ball made of plastic or a hollow ball made of metal material, and the guide ball 1 can be a complete spherical structure or a non-complete spherical structure which is more than half of a hemisphere. The size of the guide ball 1 can be determined according to the inner diameter of the corrugated pipe, the diameter of the guide ball 1 is required to be smaller than the inner diameter of the corrugated pipe, and a notch is reserved at the lower part of the guide ball for being connected with the universal connecting piece 2.

As shown in fig. 3, 6 and 7, the fixing member 3 includes a cylinder 301 having one end sealed and one end opened, and a wire fixing mechanism provided on the cylinder 301. The outer diameter of the cylinder 301 is smaller than the diameter of the guide ball 1, the middle part of the sealed end of the cylinder 301 is connected with the second connecting piece 202 of the universal connecting piece 2, and an inner thread structure is arranged on the inner wall of the open end of the cylinder 301. The steel strand fixing mechanism comprises a circular pipe fitting 306 and a circular disk 307, an external thread structure matched with the internal thread structure of the opening end of the cylinder 301 is arranged on the outer wall of one end of the circular pipe fitting 306, and the circular pipe fitting 306 is connected with the cylinder 301 through the matched internal thread structure and external thread structure. The disc 307 is arranged at one end of the circular pipe fitting 306, which is provided with a thread structure, a plurality of through holes are arranged on the disc 307, a fixing short pipe 308 is arranged at each through hole, a thread through hole leading into the pipe is arranged on the pipe wall of the fixing short pipe 308, and a fixing bolt 309 is arranged in the thread through hole. The steel strands pass through the through holes of the disk 307 and the fixing stub 308 and are fixed by the tightened fixing bolts 309.

and S100, one ends of a plurality of steel strands needing to be penetrated are inserted into the through holes of the disc 307 and the fixing short pipes 308 one by one, the fixing bolts 309 are screwed down to fix the steel strands, and then the cylinder 301 is screwed on the round pipe 306.

S400, after each steel strand passes through the corrugated pipe to the other end, the cylinder 301 is unscrewed from the circular pipe fitting 306, each fixing bolt 309 is unscrewed, and each steel strand is loosened, so that the beam penetrating work of a plurality of steel strands is completed.

Example 3

As shown in fig. 3, 8 and 9, the fixing member 3 includes a cylinder 301 having one end sealed and one end opened, and a wire fixing mechanism provided on the cylinder 301. The outer diameter of the cylinder 301 is smaller than the diameter of the guide ball 1, the middle part of the sealed end of the cylinder 301 is connected with the second connecting piece 202 of the universal connecting piece 2, and an inner thread structure is arranged on the inner wall of the open end of the cylinder 301. The steel strand fixing mechanism comprises a circular pipe fitting 306 and a circular disk 307, an external thread structure matched with the internal thread structure of the opening end of the cylinder 301 is arranged on the outer wall of one end of the circular pipe fitting 306, and the circular pipe fitting 306 is connected with the cylinder 301 through the matched internal thread structure and external thread structure. The disc 307 is arranged at one end of the circular pipe 306, which is provided with a thread structure, a rectangular through hole is arranged on the disc 307, a rectangular fixing frame 311 is arranged at the rectangular through hole, a left clamping plate 312 and a right clamping plate 312 are arranged in the rectangular fixing frame 311, and anti-slip structures are arranged on the clamping surfaces of the two clamping plates 312. The front frame and the rear frame of the rectangular fixing frame 311 are respectively provided with a guiding rectangular chute 313, the length direction of the guiding rectangular chute 313 is along the left-right direction, the length direction of the clamping plate 312 is along the front-back direction, two ends of the length direction of the clamping plate 312 are respectively provided with a sliding block structure 314 matched with the guiding rectangular chute 313, and the sliding block structures 314 are positioned in the guiding rectangular chute 313. Screw through holes are formed in the left frame and the right frame of the rectangular fixing frame 311, compression bolts 310 are mounted in the screw through holes, and each compression bolt 310 is used for driving two clamping plates 312 to be close to each other so as to compress steel strands passing through the rectangular through holes of the disc 307 and the rectangular fixing frame 311.

and S100, one ends of a plurality of steel strands needing to be penetrated penetrate through rectangular through holes of the disc 307 and between the two clamping plates 312, two compression bolts 310 are screwed down, the two compression bolts 310 drive the two clamping plates 312 to be close to each other, the steel strands penetrating between the two clamping plates 312 are compressed, and then the cylinder 301 is screwed on the round tube 306.

S400, after each steel strand passes through the corrugated pipe to the other end, the cylinder 301 is unscrewed from the circular pipe fitting 306, each compression bolt 310 is unscrewed, and each steel strand is loosened, so that the beam penetrating work of a plurality of steel strands is completed.

In conclusion, the utility model can simultaneously penetrate a plurality of steel strands at a time, and compared with the prior art that only one steel strand can be penetrated at a time, the threading efficiency is greatly improved. Because a plurality of steel strands are penetrated simultaneously, no subsequent threading work exists in the same corrugated pipe, and the problem of mutual blocking between the penetrated steel strands and the newly penetrated steel strands is effectively avoided.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a steel strand wires wear bundle device fast which characterized in that includes:

a guide ball (1);

the fixing piece (3), the fixing piece (3) is provided with a steel strand fixing mechanism, and the steel strand fixing mechanism can fix a plurality of steel strands at the same time;

the universal connecting piece (2), the universal connecting piece (2) is respectively connected with the guide ball (1) and the fixing piece (3), so that the guide ball (1) and the fixing piece (3) can rotate universally and relatively;

the guide ball (1), the fixing piece (3) and the universal connecting piece (2) are sequentially arranged in the same direction, and the fixing piece (3) and the universal connecting piece (2) are completely located in the projection area of the guide ball (1) in the direction.

2. The quick steel strand threading device according to claim 1, wherein the universal connecting piece (2) comprises a first connecting piece (201), a second connecting piece (202), a middle piece (203) and four short shafts (204), the first connecting piece (201) and the second connecting piece (202) are respectively connected with the guide ball (1) and the fixing piece (3), the first connecting piece (201) and the second connecting piece (202) are respectively provided with a mouth groove structure capable of accommodating the middle piece (203), two hinge holes are respectively arranged on the inner wall of the mouth groove structure of the first connecting piece (201) and the inner wall of the mouth groove structure of the second connecting piece (202), and the two hinge holes on each connecting piece are respectively concentric with a central axis; the four short shafts (204) are all arranged on the middle piece (203), the four short shafts (204) are equally divided into two groups, the two short shafts (204) of each group are respectively coaxial, the central axes of the two groups of short shafts (4) are mutually perpendicular, the middle piece (203) is respectively hinged with the first connecting piece (201) and the second connecting piece (202) through the four short shafts (204), and the four short shafts are respectively inserted into four hinge holes arranged on the first connecting piece (201) and the second connecting piece (202).

3. The rapid steel strand threading device according to claim 2, wherein the intermediate member (203) has a circular tubular structure, four mounting holes are provided in the wall of the intermediate member (203) and are uniformly provided along the circumferential direction of the intermediate member (203), and four stub shafts (204) hinged to the first connecting member (201) and the second connecting member (202) are respectively inserted into one of the mounting holes and are fixed to the intermediate member (203).

4. A quick steel strand threading device according to claim 3, wherein the first connecting piece (201) and the second connecting piece (202) are of semicircular structures, the outer diameters of the first connecting piece (201) and the second connecting piece (202) are smaller than the diameter of the guide ball (1), the inner sides of the two ends of the first connecting piece (201) are respectively provided with a hinge hole, and the inner sides of the two ends of the second connecting piece (202) are respectively provided with a hinge hole.

5. The rapid steel strand threading device according to claim 1, wherein the fixing member (3) comprises a cylinder (301) with one end sealed and one end opened, the outer diameter of the cylinder (301) is smaller than the diameter of the guide ball (1), the steel strand fixing mechanism is arranged on the cylinder (301), and the middle part of the sealed end of the cylinder (301) is connected with the universal connecting member (2); the steel strand fixing mechanism comprises a steel belt (302), a fixing block (303) and a fixing bolt (304), wherein the fixing block (303) is arranged on the outer wall of the cylinder (301), through holes through which the steel belt (302) can pass are formed in the fixing block (303) and the cylinder wall of the cylinder (301), and the through holes formed in the fixing block and the cylinder wall are communicated; one end of the steel belt (302) is fixed on the inner wall of the cylinder (301) and fixed at the edge position of a through hole formed in the cylinder (301), the other end of the steel belt (302) penetrates through the wall of the cylinder (301) and the through hole formed in the fixing block (303) to be positioned outside the cylinder (301), the steel belt (302) is annular in the cylinder (301), and an anti-slip structure is arranged on the inner wall of the annular steel belt (302); the fixing block (303) is provided with a threaded hole leading to a through hole thereof, and a fixing bolt (304) is arranged on the threaded hole.

6. The steel strand quick wire harness threading device according to claim 5, wherein the steel strand wire fixing mechanism further comprises a limit bolt (305), a threaded hole for installing the limit bolt (305) is formed in the outer wall of the cylinder (301), the limit bolt (305) is installed on the outer wall of the cylinder (301), a plurality of limit bolts (305) are arranged along the circumferential direction of the cylinder (301), and the portion, located outside the cylinder (301), of the steel strip (302) is pressed and fixed on the outer wall of the cylinder (301) by the limit bolt (305).

7. The rapid steel strand threading device according to claim 1, wherein the fixing member (3) comprises a cylinder (301) with one end sealed and one end opened, the outer diameter of the cylinder (301) is smaller than the diameter of the guide ball (1), the steel strand fixing mechanism is arranged on the cylinder (301), the middle part of the sealed end of the cylinder (301) is connected with the universal connecting member (2), and the opened end of the cylinder (301) is provided with a threaded connection structure; the steel strand fixing mechanism comprises a round pipe fitting (306) and a disc (307), wherein one end of the round pipe fitting (306) is provided with a threaded structure matched with a threaded connection structure at the opening end of the cylinder (301), and the round pipe fitting (306) is connected with the cylinder (301) through the matched threaded connection structure and the threaded structure; the disc (307) is arranged at one end of the circular pipe fitting (306) provided with a threaded structure, a plurality of through holes are formed in the disc (307), a fixing short pipe (308) is arranged at each through hole, a threaded through hole leading into the pipe is formed in the pipe wall of the fixing short pipe (308), and a fixing bolt (309) is arranged in the threaded through hole; the steel strand is penetrated by a penetrating through hole of the disc (307) and a fixing short pipe (308) and is fixed by a screwed fixing bolt (309).

8. The rapid steel strand threading device according to claim 1, wherein the fixing member (3) comprises a cylinder (301) with one end sealed and one end opened, the outer diameter of the cylinder (301) is smaller than the diameter of the guide ball (1), the steel strand fixing mechanism is arranged on the cylinder (301), the middle part of the sealed end of the cylinder (301) is connected with the universal connecting member (2), and the opened end of the cylinder (301) is provided with a threaded connection structure; the steel strand fixing mechanism comprises a round pipe fitting (306) and a disc (307), wherein one end of the round pipe fitting (306) is provided with a threaded structure matched with a threaded connection structure at the opening end of the cylinder (301), and the round pipe fitting (306) is connected with the cylinder (301) through the matched threaded connection structure and the threaded structure; the circular disc (307) is arranged at one end of the circular tube (306) provided with a threaded structure, a rectangular through hole is formed in the circular disc (307), a rectangular fixing frame (311) is arranged at the rectangular through hole, a left clamping plate and a right clamping plate (312) are arranged in the rectangular fixing frame (311), and anti-slip structures are arranged on clamping surfaces of the two clamping plates (312); the front frame and the rear frame of the rectangular fixing frame (311) are respectively provided with a guide rectangular chute (313), the length direction of the guide rectangular chute (313) is along the left-right direction, the length direction of the clamping plate (312) is along the front-back direction, two ends of the length direction of the clamping plate (312) are respectively provided with a sliding block structure (314) matched with the guide rectangular chute (313), and the sliding block structures (314) are positioned in the guide rectangular chute (313); screw thread through holes are formed in the left frame and the right frame of the rectangular fixing frame (311), compression bolts (310) are arranged in the screw thread through holes, and each compression bolt (310) is used for driving two clamping plates (312) to be close to each other so as to compress steel strands penetrating through the rectangular through holes of the disc (307) and the rectangular fixing frame (311).

9. The rapid steel strand threading device according to claim 7 or 8, wherein an inner thread structure is provided on an inner wall of an open end of the cylinder (301), an outer thread structure is provided on an outer wall of one end of the round tube (306), and the outer thread structure of the round tube (306) is screwed into the inner thread structure of the cylinder (301) when the cylinder (301) and the round tube (306) are connected.

10. The use method of the steel strand quick-threading device for the steel strand quick-threading device according to any one of claims 1 to 9 is characterized by comprising the following steps:

s100, fixing one ends of a plurality of steel strands needing to be penetrated by using a steel strand fixing mechanism of a fixing piece (3);

s200, inserting the guide ball (1), the universal connecting piece (2) and the fixing piece (3) into the corrugated pipe;

s300, carrying out the beam threading operation of a plurality of steel strands at one time under the assistance of a beam threading machine, so that the plurality of steel strands penetrate from one end to the other end of the corrugated pipe under the driving of the beam threading machine and the guiding action of the guide ball (1);