CN220451901U

CN220451901U - Leading small catheter guiding and positioning device

Info

Publication number: CN220451901U
Application number: CN202322097519.3U
Authority: CN
Inventors: 李金强; 李娟�; 胡家祺
Original assignee: Quzhou Transportation Construction Industrialization Co ltd
Current assignee: Quzhou Transportation Construction Industrialization Co ltd
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2024-02-06
Anticipated expiration: 2033-08-04

Abstract

The utility model provides an advanced small guide pipe guiding and positioning device which comprises a cross beam and side columns arranged on two sides of the cross beam, wherein a lifting clamping head with an upper clamping groove on the top surface is arranged above the cross beam, a lifting groove is arranged on the bottom surface of the lifting clamping head, a base column in sliding fit with the lifting groove is arranged on the top surface of the cross beam, a hollow groove is arranged at the center of the base column, a guide hole is arranged on the outer side wall of the base column, a clamping head pushing block in sliding fit with the guide hole is arranged in the hollow groove, the clamping head pushing block is connected with the bottom of the lifting clamping head, a lower clamping groove is arranged on the bottom surface of each side column, lifting sliding grooves are arranged on the side wall of each side column, lifting sliding seats are arranged in the lifting sliding grooves in a sliding manner, a guide ring is arranged between the two lifting sliding seats, and a rotating shaft with the end part in rotary connection with the lifting sliding seats is arranged on the outer side wall of the guide ring. The height of the lifting clamping head in the guiding and positioning device of the advanced small guide pipe can be adjusted electrically, so that the labor intensity of workers is reduced, and the installation efficiency is improved.

Description

Leading small catheter guiding and positioning device

Technical Field

The utility model relates to the technical field of advanced construction of tunnels, in particular to an advanced small guide pipe guiding and positioning device.

Background

Along with the continuous development of expressway construction and the extension to mountain areas, the number of tunnel engineering is also increased, tunnel engineering collapse accidents frequently occur, collapse roof exposure danger is easily caused in the main hole digging process, and the construction danger coefficient is large. The vibration and the seismic waves caused in the blasting construction process have great harm to the existing mine tunnel, and the problems of safety in the blasting construction are reasonably solved by adopting an advanced, reasonable and feasible construction method, standardization of quality technical management is realized, the construction cost of mine tunnel backfill engineering is reduced to the maximum extent, the key points of collapse accident prevention and treatment are summarized, the construction quality risk is reduced, the construction safety of a tunnel is guaranteed, and the method becomes a serious problem in project construction.

In tunnel construction, weak broken rock strata with extremely poor stability are often encountered, at the moment, the weak broken rock strata are supported by means of advanced support, and the advanced small-conduit grouting technology is widely applied to tunnel construction by means of a simple and convenient construction technology, and is called as the most effective technology for assisting stable excavation in the tunnel construction process. The advanced small-conduit grouting technology is particularly suitable for construction of karst mud flow sections with shorter self-stabilization time, sand layers, small fault breaking zones, gravel layers, shallow soft rock sections, weak broken surrounding rocks with poor self-stabilization, severe bias, fault breaking and large-area water spraying or water gushing sections.

The advanced small pipe grouting technology is to drive small pipes into surrounding rock, the reinforcing mechanism is penetrating grouting, for the surrounding rock with cracks and broken and disturbed, grouting pressure can be utilized to penetrate cement slurry into the cracks, the cement slurry is used as an adhesive and a cementing body, and broken or broken surrounding rock can be tightly glued, so that a perfect whole is formed to form a bearing ring, the broken rock stratum can be converted into an integral stabilizing band, rock loosening or falling caused by surrounding rock excavation in the tunnel construction process is prevented, and the purpose of reinforcing the rock is realized. The small guide pipe after being driven into the surrounding rock forms a pipe shed effect in the tunnel, and the advanced support system is formed, so that the stability and the firmness of the surrounding rock are enhanced, the surrounding rock is prevented from being deformed in a loosening mode, and the safety of tunnel construction is greatly improved.

The Chinese patent with the publication number of CN111828052A discloses a guiding and positioning device for a small advance catheter, which comprises a movable card, a U-shaped outer frame and an adjusting device. The U-shaped outer frame comprises a top plate, side plates arranged on two sides of the top plate, a movable clamp arranged on the top plate and comprising a fixing bolt rigidly connected to the top plate, a movable nut connected with the fixing bolt through threads, and a clamp arranged on the movable nut and provided with a steel bar clamping groove, wherein a sliding groove and a U-shaped clamping groove are formed in the side plates, and a left sliding block and a right sliding block are arranged in the sliding groove in a sliding manner.

The adjusting device comprises a guide ring, rotating rods arranged on two sides of the guide ring, an angle adjusting assembly and a position adjusting assembly, wherein the two rotating rods are respectively movably connected with a left sliding block and a right sliding block, the angle adjusting assembly comprises an angle adjusting sliding groove, sliding rods with two ends in sliding fit with the angle adjusting sliding groove, an angle adjusting bolt fixing plate arranged on the left sliding block, and angle adjusting bolts penetrating through the angle adjusting bolt fixing plate, the angle adjusting bolts can rotate relative to the sliding rods, an angle measuring disc is arranged at the right end of the right rotating rod, and an angle indicating line is arranged on the side face of the right sliding block. The position adjusting assembly comprises a position adjusting fixing plate arranged on the right side plate and a position adjusting bolt arranged on the right sliding block, wherein the upper end of the position adjusting bolt penetrates through a through hole of the position adjusting fixing plate, a nut is connected with the position adjusting bolt in a threaded manner after penetrating through the position adjusting fixing plate, and the height of the right sliding block is adjusted through the nut.

When the advanced small guide pipe guiding and positioning device is installed on the section steel arch, a worker embeds the steel bars at the lower part of the section steel arch into the U-shaped clamping grooves at the bottom of the side plates, then manually rotates the movable nuts to enable the clamps to rise until the steel bars at the upper part of the section steel arch are embedded into the steel bar clamping grooves of the clamps, at the moment, the advanced small guide pipe guiding and positioning device is fixed on the section steel arch, then the worker adjusts the alignment of the guide ring and the grouting holes obliquely formed in the surrounding rock through the position adjusting assembly and the angle adjusting assembly, and guides and positions the small guide pipes in the process of inserting the small guide pipes into the grouting pipe holes by using the guide ring.

The prior art solutions described above have the following drawbacks: when the guiding and positioning device for the advanced small guide pipe is used, the height of the clamp needs to be manually adjusted by a worker, so that the labor intensity of the worker is increased, and the guiding and positioning device for the advanced small guide pipe has the problem of low installation efficiency.

Disclosure of Invention

The utility model aims to solve the problems of the prior art by providing a guiding and positioning device for a small advance catheter, which solves the problem of low installation efficiency in the prior art.

The above object of the present utility model is achieved by the following technical solutions: the utility model provides a leading little pipe direction positioner, includes the crossbeam, sets up the side column of crossbeam both sides, the crossbeam top is provided with the lift dop of draw-in groove of top surface seting up, the lift recess has been seted up to the bottom surface of lift dop, be provided with on the top surface of crossbeam with lift recess sliding fit's base post, hollow groove has been seted up to the center department of base post, set up the guiding hole with hollow groove intercommunication on the lateral wall of base post, be provided with the both ends in the hollow groove and pass the guiding hole and with guiding hole sliding fit's dop ejector pad, the dop ejector pad links to each other with the bottom of lift dop, every all seted up down the draw-in groove on the bottom surface of side column, every all seted up the lift spout on the lateral wall of side column, the slip is provided with the lift slide in the lift spout, two be provided with the guide ring between the lift slide, be provided with the pivot that tip and lift slide rotate to be connected on the lateral wall of guide ring.

The utility model is further provided with: the bottom surface of the lifting clamping head is provided with a plurality of slug grooves, the end part of the clamping head pushing block penetrating out of the guide hole is in scarf joint with the slug grooves, and the clamping head pushing block is connected with the bottom of the lifting clamping head through screws.

The utility model is further provided with: the inner mounting hole is formed in the center of the chuck push block, the base column and the cross beam are provided with push block driving components, the push block driving components comprise an inner motor frame arranged on the bottom surface of the cross beam, a working motor arranged on the bottom surface of the inner motor frame, an inner screw rod arranged in the hollow groove in a rotating mode and connected with the working motor, and an inner flange nut forming a ball screw pair with the inner screw rod, and the inner flange nut is in plug-in fit with the inner mounting hole and fixedly connected with the chuck push block.

The utility model is further provided with: an upper groove is formed in the top surface of the hollow groove, an upper bearing sleeved on the top of the inner screw rod is embedded in the upper groove, a lower groove is formed in the bottom surface of the hollow groove, and a lower bearing sleeved on the middle of the inner screw rod is embedded in the lower groove.

The utility model is further provided with: the bottom of the outer side wall of the base column is provided with a fixed flanging connected with the top surface of the cross beam.

The utility model is further provided with: the lifting slide comprises a lifting slide body and is characterized in that an outer mounting hole is formed in the top surface of the lifting slide body, a slide seat driving assembly is arranged on the side column, the slide seat driving assembly comprises an outer electric frame arranged on the bottom surface of the side column, a lifting motor arranged on the top surface of the outer electric frame, an outer screw rod which is arranged in the lifting slide groove in a rotating mode and the top of which penetrates through the side column to be connected with the lifting motor, and an outer flange nut which is in ball screw pair with the outer screw rod, wherein the outer flange nut is in plug-in fit with the outer mounting hole and is fixedly connected with the lifting slide body.

The utility model is further provided with: outer grooves are formed in the upper end face and the lower end face of the lifting sliding groove, and outer bearings sleeved on the outer lead screw are embedded in each outer groove.

The utility model is further provided with: and each lifting sliding seat is provided with a side groove on the end face facing the rotating shaft, and a side bearing sleeved at the end part of the rotating shaft far away from the guide ring is embedded in the side groove.

The utility model is further provided with: each rotating shaft is coaxially provided with a driven gear, the top surface of the lifting sliding seat is provided with a driving motor, and the output shaft of the driving motor is provided with a driving gear meshed with the driven gear.

In summary, the beneficial technical effects of the utility model are as follows: the height of the lifting clamping head in the advanced small guide pipe guiding and positioning device can be electrically adjusted, the height and the angle of the guiding ring can be electrically adjusted, the labor intensity of workers is reduced, and the installation efficiency is improved.

Drawings

FIG. 1 is a schematic view of the structure of the guiding and positioning device of the advance small catheter in the utility model;

FIG. 2 is a partial cross-sectional view of the lead catheter guide positioning device of the present utility model;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic view of an exploded view of the base post and lift pin of the present utility model;

FIG. 5 is a schematic diagram of the structure of the lifting slide carriage, the driving motor, the driving gear and the driven gear;

fig. 6 is an enlarged view at B in fig. 2.

In the above figures: 1. a cross beam; 2. a side column; 3. lifting clamping heads; 4. lifting grooves; 5. an slug groove; 6. an upper clamping groove; 7. a base column; 8. fixing and flanging; 9. a hollow groove; 10. a guide hole; 11. chuck pushing blocks; 12. an inner mounting hole; 13. an inner motor frame; 14. a working motor; 15. an inner lead screw; 16. an inner flange nut; 17. an upper groove; 18. an upper bearing; 19. a lower groove; 20. a lower bearing; 21. a lower clamping groove; 22. lifting sliding grooves; 23. lifting the sliding seat; 24. an outer mounting hole; 25. an external electric chassis; 26. a lifting motor; 27. an outer lead screw; 28. an outer flange nut; 29. an outer groove; 30. an outer bearing; 31. a guide ring; 32. a rotating shaft; 33. a side groove; 34. a side bearing; 35. a driven gear; 36. a driving motor; 37. a drive gear; 38. a storage battery; 39. and a controller.

Description of the embodiments

The utility model will be further described with reference to the drawings and detailed description in order to make the technical means, the creation characteristics, the achievement of the objects and the functions of the utility model more clear and easy to understand.

As shown in fig. 1, the utility model provides a guiding and positioning device for a small advance guide pipe, which comprises a cross beam 1 and side posts 2 arranged on two sides of the cross beam 1, wherein the cross beam 1 and the side posts 2 are fixed in a welding mode.

As shown in fig. 1 and 3, a lifting clamp head 3 is arranged above the cross beam 1, a lifting groove 4 is formed in the bottom surface of the lifting clamp head 3, the cross section of the lifting groove 4 is circular, two insert grooves 5 are symmetrically formed in the bottom surface of the lifting clamp head 3, the two insert grooves 5 are all located on the outer side of the lifting groove 4, the two insert grooves 5 are all communicated with the lifting groove 4, and the cross section of the insert groove 5 is in a fan shape. An upper clamping groove 6 is formed in the top surface of the lifting clamping head 3, the cross section of the upper clamping groove 6 is U-shaped, and the upper clamping groove 6 is in scarf joint with the steel bars on the upper portion of the profile steel arch.

As shown in fig. 1 and 3, a cylindrical base column 7 is arranged on the top surface of the cross beam 1, the base column 7 is inserted into the lifting groove 4 of the lifting chuck 3, the base column 7 and the lifting groove 4 form sliding fit, and the lifting chuck 3 can relatively stably reciprocate up and down. The bottom fixedly connected with fixed turn-ups 8 of the outer lateral wall of foundation post 7, the cross section of fixed turn-ups 8 is the ring, and fixed turn-ups 8 screw connection is on the top surface of crossbeam 1. The center of the base column 7 is provided with a hollow groove 9, the cross section of the hollow groove 9 is circular, the outer side wall of the base column 7 is symmetrically provided with two guide holes 10, the two guide holes 10 are communicated with the hollow groove 9, and the cross section of the guide holes 10 is in a fan ring shape.

As shown in fig. 3 and 4, a chuck push block 11 is arranged in the hollow groove 9, an inner mounting hole 12 is formed in the center of the chuck push block 11, and the inner mounting hole 12 is a circular hole. The both ends of dop ejector pad 11 pass guiding hole 10, and dop ejector pad 11 and guiding hole 10 sliding fit, and the tip that dop ejector pad 11 worn out guiding hole 10 and scarf joint cooperation in scarf joint groove 5, and dop ejector pad 11 screw connection is in the bottom of lift dop 3, and when dop ejector pad 11 was rectilinear motion about along the length direction of guiding hole 10, dop ejector pad 11 can drive lift dop 3 and be reciprocal rectilinear motion from top to bottom.

As shown in fig. 2 and 3, the cross beam 1 and the base column 7 are provided with a push block driving assembly, the push block driving assembly is used for driving the chuck push block 11 to do up-and-down reciprocating linear motion, and the push block driving assembly comprises an inner motor frame 13, a working motor 14, an inner lead screw 15 and an inner flange nut 16.

As shown in fig. 2 and 3, the inner motor frame 13 is -shaped, the inner motor frame 13 is screw-coupled to the bottom surface of the cross beam 1, and the opening of the inner motor frame 13 is directed toward the cross beam 1. The working motor 14 is fixedly arranged on the end face, away from the cross beam 1, of the inner motor frame 13, and an output shaft of the working motor 14 penetrates through the inner motor frame 13. The inner lead screw 15 is rotatably arranged in the hollow groove 9, and the bottom of the inner lead screw 15 penetrates through the beam 1 and is coaxially connected with an output shaft of the working motor 14 through a coupler. The inner flange nut 16 and the inner screw rod 15 form a ball screw pair, the inner flange nut 16 is in plug-in fit with the inner mounting hole 12 of the chuck push block 11, and the flange plate of the inner flange nut 16 is fixedly connected with the chuck push block 11 through screws.

As shown in fig. 2 and 3, an upper groove 17 is formed in the top surface of the hollow groove 9, an upper bearing 18 is embedded in the upper groove 17, and the upper bearing 18 is sleeved on the top of the inner screw rod 15. The bottom surface of the hollow groove 9 is provided with a lower groove 19, a lower bearing 20 is embedded in the lower groove 19, and the lower bearing 20 is sleeved in the middle of the inner screw rod 15. The upper bearing 18 and the lower bearing 20 are used for supporting the inner screw rod 15 to rotate, so that the inner screw rod 15 can rotate relatively stably.

As shown in fig. 1 and 2, a lower clamping groove 21 is formed in the bottom surface of each side column 2, the cross section of the lower clamping groove 21 is U-shaped, and the lower clamping groove 21 is in scarf joint with the steel bars at the lower part of the section steel arch. The end face, away from the cross beam 1, of each side column 2 is provided with a lifting sliding chute 22, a lifting sliding seat 23 is arranged in the lifting sliding chute 22 in a sliding manner, one end, close to the cross beam 1, of the lifting sliding seat 23 extends out of the lifting sliding chute 22, and the top surface of the lifting sliding seat 23 is provided with an outer mounting hole 24, wherein the outer mounting hole 24 is a circular hole.

As shown in fig. 2 and 6, the jamb 2 is provided with a slide driving assembly, which is used for driving the lifting slide 23 to reciprocate linearly up and down along the length direction of the lifting chute 22, and the slide driving assembly comprises an external motor frame 25, a lifting motor 26, an external screw rod 27 and an external flange nut 28.

As shown in fig. 2 and 5, the outer frame 25 has a shape, the outer frame 25 is screw-coupled to the top surface of the jamb 2, and the opening of the outer frame 25 faces the jamb 2. The lifting motor 26 is fixedly mounted on the end face of the outer motor frame 25 facing away from the jamb 2, and the output shaft of the lifting motor 26 penetrates the outer motor frame 25. The outer lead screw 27 is rotatably arranged in the lifting chute 22, and the top of the outer lead screw 27 penetrates through the side column 2 and is coaxially connected with the output shaft of the lifting motor 26 through a coupler. The outer flange nut 28 and the outer screw rod 27 form a ball screw pair, the outer flange nut 28 is in plug-in fit with the outer mounting hole 24 of the lifting slide seat 23, and the flange plate of the outer flange nut 28 is fixedly connected with the lifting slide seat 23 through screws.

As shown in fig. 2, the upper end surface and the lower end surface of the lifting chute 22 are provided with outer grooves 29, the cross section of each outer groove 29 is circular, each outer groove 29 is embedded with an outer bearing 30, two outer bearings 30 are respectively sleeved at the bottom and the middle of the outer screw rod 27, and the two outer bearings 30 are used for supporting the outer screw rod 27 to rotate, so that the outer screw rod 27 can rotate relatively stably.

As shown in fig. 2 and 6, a guide ring 31 is disposed between the two lifting sliding bases 23, the guide ring 31 is in a ring shape, two cylindrical rotating shafts 32 are fixedly connected to the outer side wall of the guide ring 31, and the two rotating shafts 32 are symmetrical to each other. Each lifting slide seat 23 is provided with a side groove 33 on the end face facing the rotating shaft 32, a side bearing 34 is embedded in the side groove 33, the side bearing 34 is sleeved at one end of the rotating shaft 32 far away from the guide ring 31, the two side bearings 34 are used for supporting the two rotating shafts 32 to rotate, and then the rotating shaft 32 and the guide ring 31 can rotate relatively stably.

As shown in fig. 2 and 6, a driven gear 35 is coaxially provided on each of the rotating shafts 32, and the driven gear 35 is provided near the elevating slide 23. A driving motor 36 is fixedly arranged on the top surface of the lifting sliding seat 23, a driving gear 37 is fixedly arranged on the output shaft of the driving motor 36, and the driving gear 37 is meshed with the driven gear 35. In this embodiment, the driving motor 36 is a brake stepping motor, and the brake stepping motor is a stepping motor with a brake, and when the brake is started, the output shaft of the driving motor 36 is locked.

As shown in fig. 1, a storage battery 38 and a controller 39 are arranged on the top surface of the cross beam 1, the storage battery 38 and the controller 39 are electrically connected with the working motor 14, the lifting motor 26 and the driving motor 36, the storage battery 38 is used for supplying power to the working motor 14, the lifting motor 26 and the driving motor 36, the controller 39 is used for controlling the working states of the working motor 14, the lifting motor 26 and the driving motor 36, and corresponding control programs are led into the controller 39 according to a preset grouting hole punching scheme, so that the lifting motor 26 and the driving motor 36 can work cooperatively, and the guide ring 31 is adjusted to be aligned with the hole opening of the grouting hole.

The detailed working procedure of this embodiment is:

s1: when the advanced small guide pipe guiding and positioning device is installed on a profile steel arch for use, a worker embeds steel bars at the lower part of the profile steel arch into the lower clamping grooves 21 of the side columns 2, then the upper clamping grooves 6 of the lifting clamping heads 3 are aligned with the steel bars at the upper part of the profile steel arch, then the worker controls the working motor 14 to work through the controller 39, the working motor 14 drives the inner lead screw 15 to rotate, further drives the inner flange nut 16 forming a ball screw pair with the inner lead screw 15 to move upwards, the clamping head pushing block 11 and the lifting clamping heads 3 move upwards along with the inner lead screw, until the steel bars at the upper part of the profile steel arch form scarf joint with the upper clamping grooves 6 of the lifting clamping heads 3, and at the moment, the advanced small guide pipe guiding and positioning device is fixed on the profile steel arch;

s2: the controller 39 controls the lifting motor 26 to work, the lifting motor 26 drives the outer screw rod 27 to rotate, and then drives the outer flange nut 28 forming a ball screw pair with the outer screw rod 27 to move up and down, so that the lifting sliding seat 23 moves up and down along with the outer screw rod, and the lifting sliding hole moves to the target height;

s3: the controller 39 controls the driving motor 36 to operate, the driving motor 36 drives the driving gear 37 to rotate, and the driven gear 35, the rotating shaft 32 and the guide ring 31 rotate along with the driving gear 37 until the guide tube rotates to the target position.

The height of the lifting clamping head 3 in the leading small guide pipe guiding and positioning device can be electrically adjusted, the height and the angle of the guide ring 31 can be electrically adjusted, the labor intensity of workers is reduced, and the installation efficiency is improved.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. The utility model provides a little pipe direction positioner leads, includes crossbeam (1), sets up jambs (2) of crossbeam (1) both sides, its characterized in that: the utility model discloses a lifting slide, including crossbeam (1), clamping groove (6), clamping groove (3), clamping groove (4), lower draw-in groove (21), every all set up on the top surface of crossbeam (1) lift spout (22), hollow groove (9) have been seted up in the center department of base (7), set up guiding hole (10) with hollow groove (9) intercommunication on the lateral wall of base (7), be provided with in hollow groove (9) both ends and pass guiding hole (10) and with guiding hole (10) sliding fit's chuck ejector pad (11), chuck ejector pad (11) link to each other with the bottom of lifting clamp (3), every all set up down draw-in groove (21) on the bottom surface of side post (2), all set up on the lateral wall of side post (2) lift spout (22), slide in lift spout (22) and be provided with lift (23), two be provided with between lift slide (23) guide ring (31), pivot (32) are connected to outer end portion and are gone up and down to slide (31).

2. The advanced small catheter guide positioning device according to claim 1, wherein: the bottom surface of lift dop (3) has seted up a plurality of slug grooves (5), the tip that guide hole (10) was worn out to chuck ejector pad (11) is in scarf joint cooperation with slug groove (5), chuck ejector pad (11) screw connection is in the bottom of lift dop (3).

3. The advanced small catheter guide positioning device according to claim 1, wherein: the clamping head pushing block is characterized in that an inner mounting hole (12) is formed in the center of the clamping head pushing block (11), a pushing block driving assembly is arranged on the base column (7) and the cross beam (1), the pushing block driving assembly comprises an inner motor frame (13) arranged on the bottom surface of the cross beam (1), a working motor (14) arranged on the bottom surface of the inner motor frame (13), an inner screw (15) which is rotatably arranged in the hollow groove (9) and connected with the working motor (14), and an inner flange nut (16) which forms a ball screw pair with the inner screw (15), wherein the inner flange nut (16) is in splicing fit with the inner mounting hole (12) and is fixedly connected with the clamping head pushing block (11).

4. A lead catheter guidance positioning device according to claim 3, wherein: an upper groove (17) is formed in the top surface of the hollow groove (9), an upper bearing (18) sleeved on the top of the inner screw rod (15) is embedded in the upper groove (17), a lower groove (19) is formed in the bottom surface of the hollow groove (9), and a lower bearing (20) sleeved on the middle of the inner screw rod (15) is embedded in the lower groove (19).

5. The advanced small catheter guide positioning device according to claim 1, wherein: the bottom of the outer side wall of the base column (7) is provided with a fixed flanging (8) connected with the top surface of the cross beam (1).

6. The advanced small catheter guide positioning device according to claim 1, wherein: the lifting slide seat is characterized in that an outer mounting hole (24) is formed in the top surface of the lifting slide seat (23), a slide seat driving assembly is arranged on the side column (2), the slide seat driving assembly comprises an outer electric frame (25) arranged on the bottom surface of the side column (2), a lifting motor (26) arranged on the top surface of the outer electric frame (25), an outer screw (27) which is rotatably arranged in the lifting sliding groove (22) and the top of which penetrates through the side column (2) and is connected with the lifting motor (26), and an outer flange nut (28) which forms a ball screw pair with the outer screw (27), wherein the outer flange nut (28) is in plug-in fit with the outer mounting hole (24) and is fixedly connected with the lifting slide seat (23).

7. The advanced small catheter guide positioning device according to claim 6, wherein: outer grooves (29) are formed in the upper end face and the lower end face of the lifting sliding groove (22), and outer bearings (30) sleeved on the outer lead screws (27) are embedded in each outer groove (29).

8. The advanced small catheter guide positioning device according to claim 1, wherein: the end face of each lifting sliding seat (23) facing the rotating shaft (32) is provided with a side groove (33), and the side groove (33) is embedded with a side bearing (34) sleeved on the end part of the rotating shaft (32) far away from the guide ring (31).

9. The advanced small catheter guide positioning device according to claim 8, wherein: each rotating shaft (32) is coaxially provided with a driven gear (35), the top surface of the lifting sliding seat (23) is provided with a driving motor (36), and the output shaft of the driving motor (36) is provided with a driving gear (37) meshed with the driven gear (35).