CN113081037B

CN113081037B - Ultrasonic department nursing is with B ultrasonic examination strutting arrangement

Info

Publication number: CN113081037B
Application number: CN202110365683.0A
Authority: CN
Inventors: 逄玲玲; 赵雪梅; 郭春雪
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2023-01-13
Anticipated expiration: 2041-04-06
Also published as: CN113081037A

Abstract

The invention discloses a B-ultrasonic examination supporting device for ultrasonic nursing, which relates to the technical field of medical instruments and comprises a cross-shaped plate, wherein one side of the bottom surface of the cross-shaped plate, which is far away from one side, is provided with a first T-shaped sliding groove, one side of each of the four first T-shaped sliding grooves, which is far away from one side, is communicated with the outside, and the middle part of the upper surface of the cross-shaped plate is fixedly connected with a hollow cylinder. Through the arc cover that sets up, the rubber suction cup, square slide bar, square slide hole, mutually support between square piece and the stirring board, can make the stirring board drive square piece when rotating and rotate with square slide bar upside round pin axle as the axle center, thereby make square piece upset 90 degrees, at square piece pivoted in-process, it upwards rises to drive square slide bar, thereby make square slide bar drive lower extreme fixed connection's rubber suction cup middle part upwards rise, through the inside and outside negative pressure difference of rubber suction cup, make the device firmly fix subaerial, the fixed effect of the device has been improved, the phenomenon of skidding appears in the support frame has been avoided.

Description

Ultrasonic branch of academic or vocational study nursing is with B ultrasonic examination strutting arrangement

Technical Field

The invention relates to the technical field of medical instruments, in particular to a B-ultrasonic examination supporting device for ultrasonic nursing.

Background

The B-ultrasonic examination is a very important disease diagnosis technology in modern clinical medicine, and has the advantages of no trauma, wide examination range, low cost and the like, the application method of the B-ultrasonic examination is that a patient lies on an examination bed, the examination part is exposed, and a special coupling agent is coated, then a doctor holds a B-ultrasonic probe by hand and lightly touches the body surface of the examination part of the patient, and continuously moves to carry out ultrasonic scanning, a display screen of an ultrasonic instrument displays various tissue images of the part according to the part touched by the probe, so that the doctor is helped to accurately make a judgment, and the doctor needs to hold the probe by hand to carry out the B-ultrasonic examination when examining the patient.

Present ultrasonic examination strutting arrangement, it is a simple support frame mostly, it makes its removal of being convenient for to remove the wheel through the setting, and at the in-process of B ultrasonic examination, often need the instrument fixed, so that better formation of image, and the phenomenon that skids can appear in the support frame that the bottom has the wheel, be unfavorable for B ultrasonic examination, and the most structure of current support frame is fixed, the volume is great, deposit indoor and can occupy great space, and the most simple structure of current support frame, the probe often can't be adjusted after fixed, thereby can't adjust according to different size patients ' particular case, it is very inconvenient.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a B-ultrasonic examination supporting device for ultrasonic nursing, which solves the problems that a supporting frame with wheels at the bottom is not favorable for B-ultrasonic examination due to the phenomenon of skidding, the existing supporting frame is mostly fixed in structure and large in size, occupies a large space when being stored indoors, the existing supporting frame is mostly simple in structure, and a probe cannot be adjusted after being fixed, so that the adjustment cannot be carried out according to the specific conditions of patients with different body types, and is very inconvenient.

(II) technical scheme

In order to achieve the above purposes, the technical scheme adopted by the invention is as follows: the utility model provides a supersound branch of academic or vocational study nursing is with B ultrasonic examination strutting arrangement, includes the cross shaped plate, one side all has been seted up to T shape spout one is kept away from to the bottom surface of cross shaped plate, and four T shape spout one all is linked together with the external world far away from one side, the hollow section of thick bamboo of upper surface middle part fixedly connected with of cross shaped plate, the middle part sliding connection of hollow section of thick bamboo has the slide bar, two of two L shaped plates of last fixed surface fixedly connected with of slide bar, two fixedly connected with fixed axle between the L shaped plate, the fixed axle cover is established in the round hole of seting up on the swing arm, the below of swing arm is provided with the arc.

Preferably, the bottom surface of cross shaped plate is kept away from two connecting plates of equal fixedly connected with in one side, two the lower extreme of connecting plate all with arc cover fixed connection, the below of arc cover is provided with the rubber suction cup, the square slide bar of upper end fixedly connected with of rubber suction cup, square slide bar sliding connection has been seted up at the upper end middle part of arc cover, and square slide bar sliding connection has in square slide bar, the upper end of square slide bar extends to arc cover top and has articulated through the round pin axle has square, and one side base of square is the cambered surface setting, the last fixed surface of square is connected with dials the board.

Preferably, four T-shaped sliding grooves I are all connected with T-shaped sliding blocks in a sliding mode, the lower ends of the T-shaped sliding blocks are fixedly connected with trapezoidal blocks, inclined planes of the trapezoidal blocks are matched with the shifting plate, four T-shaped sliding blocks are all fixedly connected with connecting rods on the back faces of the T-shaped sliding blocks, and the back ends of the four connecting rods all extend to the handles fixedly connected to the outer portions of the cross-shaped plates.

Preferably, a slide bar is fixedly connected to the circumferential surface of the inner side of the hollow cylinder, the slide bar is slidably connected to a slide groove formed in the slide bar, and a plurality of positioning holes are formed in the left side of the slide bar.

Preferably, a first bolt hole is formed in the upper portion of the left side of the hollow cylinder, a first bolt is connected to the first bolt hole in a sliding mode and is clamped with one of the plurality of positioning holes, a first magnet is arranged on a first round plate on the left side of the first bolt, and the first magnet is adsorbed to the hollow cylinder made of metal.

Preferably, two bolt hole two has all been seted up in the top and the left side of L shaped plate, the left end fixedly connected with extension plate of swing arm, bolt hole three has been seted up on the extension plate, the left side all with bolt two joint in bolt hole two and the bolt hole three, be provided with magnet two on the plectane two of bolt two rear ends, and magnet two adsorbs with the L shaped plate of metal material mutually.

Preferably, a T-shaped sliding groove II is formed in the bottom surface of the swinging arm, an I-shaped sliding block I is connected to the T-shaped sliding groove II in a sliding mode, the I-shaped sliding block I is arranged in a circular mode, and the I-shaped sliding block I is fixedly connected with the upper end of the arc-shaped plate.

Preferably, the arc spout has been seted up on the arc, sliding connection has I-shaped slider two in the arc spout, and I-shaped slider two is square setting, fixedly connected with L shape pole on the preceding lateral wall of I-shaped slider two, square spout has been seted up to the rear side of L shape pole, and the right-hand member of square spout is linked together with the external world, the inside threaded rod that is provided with of square spout, and the left end optical axis part of threaded rod passes through bearing and square spout fixed connection, and the right-hand member of threaded rod extends to the outer fixedly connected with turning block of L shape pole, be provided with the thread bush in the square spout, and the thread bush is square setting, and thread bush and threaded rod threaded connection, fixedly connected with grip block on the preceding lateral wall of thread bush.

(III) advantageous effects

The invention has the beneficial effects that:

1. this B ultrasonic examination strutting arrangement is used in department of ultrasonics nursing, arc cover through setting up, rubber suction cups, square slide bar, square slide hole, mutually support between square piece and the stirring board, can make the stirring board drive square piece when rotating and rotate with square slide bar upside round pin axle as the axle center, thereby make square piece upset 90 degrees, at square piece pivoted in-process, it upwards rises to drive square slide bar, thereby make square slide bar drive lower extreme fixed connection's rubber suction cups middle part upwards rise, through the inside and outside negative pressure difference of rubber suction cups, make the device firmly fix subaerial, the fixed effect of the device has been improved, the phenomenon of skidding has appeared to the support frame.

2. The supporting device for the B-ultrasonic examination for the ultrasonic department nursing comprises a hollow cylinder, a sliding rod, a first bolt, a first magnet, a sliding strip, a sliding groove, a first I-shaped sliding block, a second I-shaped sliding block and a positioning hole, wherein the hollow cylinder, the sliding rod, the first I-shaped sliding block, the second I-shaped sliding block and the positioning hole are matched with each other.

3. This ultrasonic branch of academic or vocational study nursing is with B ultrasonic examination strutting arrangement, L shaped plate through setting up, the fixed axle, the swing arm, bolt hole two, the extension plate, bolt hole three, mutually support between bolt two and the magnet two, can be when using up, through extracting bolt two, make magnet two on the bolt two not adsorb with L shaped plate, meanwhile bolt two not with the three joints in bolt hole on the extension plate, swing the swing arm downwards afterwards, make the swing arm use the fixed axle to rotate as the axle center, until swing arm and ground are perpendicular, meanwhile bolt hole three on the extension plate and the two coincidences in bolt hole of L shaped plate top, insert bolt two again in the bolt hole two of top, the folding of having realized the device is accomodate, the storage effect is improved, the placement space has been saved.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

FIG. 2 is a partial front view of the cross-shaped plate of the present invention;

FIG. 3 is a schematic top sectional view of an L-shaped pole of the present invention;

FIG. 4 is a left side view of the L-shaped plate of the present invention;

fig. 5 is a schematic partial perspective view of a hollow cylinder according to the present invention.

In the figure: the device comprises a cross-shaped plate 1, a first 2T-shaped sliding groove, a first 3 hollow cylinder, a 4 sliding rod, a 5L-shaped plate, a 6 fixed shaft, a 7 swinging arm, an 8 arc-shaped plate, a 9 connecting plate, a 10 arc-shaped cover, a 11 rubber sucker, a 12 square sliding rod, a 13 square sliding hole, a 14 square block, a 15 stirring plate, a 16T-shaped slider, a 17 trapezoid block, a 18 connecting rod, a 19 handle, a 20 sliding strip, a 21 sliding groove, a 22 positioning hole, a 23 bolt hole I, a 24 bolt I, a 25 magnet I, a 26 bolt hole II, a 27 extending plate, a 28 bolt hole III, a 29 bolt II, a 30 magnet II, a 31T-shaped sliding groove II, a 32I-shaped slider I, a 33 arc-shaped sliding groove, a 34I-shaped slider II, a 35L-shaped rod, a 36 square sliding groove, a 37 threaded rod, a 38 threaded sleeve and a 39 clamping plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

As shown in fig. 1 to 5, the present invention provides a technical solution: the utility model provides a B ultrasonic examination strutting arrangement is used in ultrasonic department nursing, including cross shaped plate 1, set up cross shaped plate 1, can make the device more steady when placing, one side of keeping away from more of bottom surface of cross shaped plate 1 has all seted up T shape spout 2, and one side of keeping away from of four T shape spouts 2 all is linked together with the external world, be linked together with the external world through setting up T shape spout 2, can make external handle 19 drive T shape slider 16 smoothly and move, the hollow cylinder 3 of upper surface middle part fixedly connected with of cross shaped plate 1, the middle part sliding connection of hollow cylinder 3 has slide bar 4, through setting up hollow cylinder 3 and slide bar 4, can make slide bar 4 slide from top to bottom in hollow cylinder 3 inside, the stability of altitude mixture control has been realized, the last fixed surface of slide bar 4 is connected with two L shaped plates 5, fixedly connected with fixed axle 6 between two L shaped plates 5, through setting up fixed axle 6 and swing arm 7, can make swing arm 7 rotate with fixed axle 6 as the axle center when accomodating, the cover is established in the round hole of seting up on swing arm 7, the below of swing arm 7 is provided with arc shaped plate 8.

The bottom surface of the cross-shaped plate 1 is far away from one side and is fixedly connected with two connecting plates 9, the lower ends of the two connecting plates 9 are fixedly connected with an arc cover 10, a rubber suction cup 11 is arranged below the arc cover 10, the upper end of the rubber suction cup 11 is fixedly connected with a square slide rod 12, the square slide rod 12 and the square slide hole 13 are arranged, when the square slide rod 12 slides up and down, the poking plate 15 cannot rotate due to the limitation of the square slide rod 12 through the square slide hole 13, the structural integrity is realized, the square slide hole 13 is formed in the middle of the upper end of the arc cover 10, the square slide rod 12 is slidably connected in the square slide hole 13, the upper end of the square slide rod 12 extends to the upper side of the arc cover 10 and is hinged with a square block 14 through a pin shaft, the bottom edge of one side of the square block 14 is arranged as an arc surface, the poking plate 15 can drive the square block 14 to rotate more smoothly by arranging the bottom edge of one side of the square block 14 as an arc surface, the poking plate 15 is fixedly connected with the inner surface and outer surface of the square block 15, the poking plate 9, the arc cover 10, the rubber suction cup 11, the square slide rod 13 and the square slide rod 14 can drive the square block 14 to rotate upwards through the rubber suction cup 14, and the square block 14, and the square slide rod 14, and the square suction cup can drive the device to rotate.

Equal sliding connection has T shape slider 16 in four T shape spout 2, through setting up T shape spout 2 and T shape slider 16, can make trapezoidal piece 17 more stable when removing, T shape slider 16's lower extreme fixedly connected with trapezoidal piece 17, and trapezoidal piece 17's inclined plane and the 15 looks adaptations of stirring board, equal fixedly connected with connecting rod 18 on four T shape slider 16's the back of the face, through setting up connecting rod 18 and handle 19, can conveniently remove from outside pulling trapezoidal piece 17, and trapezoidal piece 17 inclined plane drives stirring board 15 and rotates when removing, the integrality of structure has been realized, four connecting rod 18's the back of the face end all extends to 1 outer fixedly connected with handle 19 of cross shaped plate.

Fixedly connected with draw runner 20 on the inboard periphery of hollow section of thick bamboo 3, draw runner 20 sliding connection is in the spout 21 of seting up on slide bar 4, through setting up draw runner 20 and spout 21, can make slide bar 4 more stable when sliding from top to bottom in hollow section of thick bamboo 3, and spacing through draw runner 20 and spout 21, avoid slide bar 4 to take place to rotate, the stability of structure has been realized, a plurality of locating holes 22 have been seted up in slide bar 4's left side, through setting up a plurality of locating holes 22, can adjust the high position of swing arm 7 in a flexible way.

Bolt hole one 23 has been seted up to hollow section of thick bamboo 3's left side top, sliding connection has bolt one 24 in bolt hole one 23, can make bolt one 24 and locating hole 22 carry out the joint through setting up bolt one 24, thereby make the slide bar 4 fixed position after adjusting, and a joint in bolt one 24 and a plurality of locating hole 22, be provided with magnet one 25 on the left plectane of bolt one 24, through setting up magnet one 25, can make bolt one 24 back in inserting locating hole 22, adsorb through magnet one 25 and 3 surfaces of hollow section of thick bamboo, thereby make bolt one 24 fixed, the integrality of structure has been realized, and magnet one 25 adsorbs mutually with hollow section of thick bamboo 3 of metal material.

Bolt holes II 26 are formed in the upper portion and the left side of each of the two L-shaped plates 5, an extension plate 27 is fixedly connected to the left end of each of the swing arms 7, bolt holes III 28 are formed in the extension plates 27, the bolt holes II 26 in the left side and the bolt holes III 28 are clamped with the bolt holes II 29, a magnet II 30 is arranged on a circular plate II at the rear end of each of the bolt holes II 29, the magnet II 30 is adsorbed to the L-shaped plate 5 made of metal, the bolt holes II 26, the L-shaped plates 5, the extension plates 27, the bolt holes III 28, the bolt II 29 and the magnet II 30 are matched with each other, when the folding device is used, the magnet II 30 on the bolt II 29 is not adsorbed to the L-shaped plate 5 by pulling out the bolt II 26, meanwhile, the bolt II 29 is not clamped to the bolt holes III 28 in the extension plates, the swing arms 7 swing downwards, the swing arms 7 rotate with the axis 6 as axes until the bolt 7 is perpendicular to the ground, meanwhile, the bolt holes III 28 in the bolt holes II 29 in the extension plates are overlapped with the bolt holes II 26 in the upper portions above the extension plates, the swing arms 26, the folding device is achieved, and the storage space is saved.

The bottom surface of the swing arm 7 is provided with a second T-shaped sliding groove 31, a first I-shaped sliding block 32 is slidably connected into the second T-shaped sliding groove 31, the arc plate 8 can be more stable in left-right movement by arranging the second T-shaped sliding groove 31 and the first I-shaped sliding block 32, the first I-shaped sliding block 32 is arranged in a circular shape, the lower part of the ultrasonic probe can be conveniently rotated after the ultrasonic probe is installed and fixed by arranging the first I-shaped sliding block 32 in a circular shape, the detection effect is improved, and the first I-shaped sliding block 32 is fixedly connected with the upper end of the arc plate 8.

An arc chute 33 is arranged on the arc-shaped plate 8, an I-shaped sliding block II 34 is connected in the arc chute 33 in a sliding manner, the I-shaped sliding block II 34 is arranged in a square manner, and the I-shaped sliding block II 34 can limit the position of the I-shaped sliding block II 34 arranged in the square manner when the I-shaped sliding block II 34 slides in the arc chute 33 by arranging the I-shaped sliding block II 34 in the square manner, so that the clamped and fixed ultrasonic probe is prevented from overturning, the structural stability is realized, an L-shaped rod 35 is fixedly connected to the front side wall of the I-shaped sliding block II 34, a square chute 36 is arranged at the rear side of the L-shaped rod 35, the right end of the square chute 36 is communicated with the outside, a threaded rod 37 is arranged inside the square chute 36, the optical axis part at the left end of the threaded rod 37 is fixedly connected with the square chute 36 through a bearing, and the right end of the threaded rod 37 extends to the outside of the L-shaped rod 35 and is fixedly connected with a rotating block, through setting up the turning block, can more conveniently rotate threaded rod 37, be provided with thread bush 38 in the square spout 36, and thread bush 38 is square setting, through setting up square spout 36 and thread bush 38, can make thread bush 38 more stable when removing, and square spout 36 is through spacing thread bush 38, can avoid threaded rod 37 to drive thread bush 38 when rotating and rotate, thereby avoid grip block 39 to take place to rotate, and thread bush 38 and threaded rod 37 threaded connection, through setting up thread bush 38 and threaded rod 37 threaded connection, can make threaded rod 37 drive thread bush 38 when rotating and move, thereby make grip block 39 carry out the centre gripping to ultrasonic probe and fix, the integrality of structure has been realized, fixedly connected with grip block 39 on the preceding lateral wall of thread bush 38.

The method comprises the following operation steps:

s1, when the device is used, firstly, the device is conveyed to the front of a patient, and is moved to a proper position, then the device is fixed, firstly, four rubber suction cups 11 on the bottom surface of a cross-shaped plate 1 are placed on a smooth ground, then a handle 19 is pulled outwards in sequence, the handle 19 drives a T-shaped sliding block 16 which is fixedly connected through a connecting rod 18 to slide in a T-shaped sliding groove 2, so that a trapezoidal block 17 is driven to move, an inclined surface of the trapezoidal block 17 is in contact with a poking plate 15 when moving, the poking plate 15 drives a square block 14 to rotate by taking a pin shaft on the square sliding rod 12 as an axis, so that the square block 14 is overturned for 90 degrees, the square sliding rod 12 is driven to ascend upwards in the rotating process of the square block 14, so that the square sliding rod 12 drives the middle part of the rubber suction cup 11 which is fixedly connected with the lower end to ascend upwards, and the device is firmly fixed on the ground through the negative pressure difference between the inside and the outside of the rubber suction cups 11;

s2, after the patient lies down on the sickbed, adjusting the height of the swing arm 7 according to the posture of the patient, firstly pulling out the bolt I24, enabling a magnet I25 on a circular plate I at the left end of the bolt I24 not to be adsorbed to the hollow cylinder 3, enabling the bolt I24 not to be clamped with the positioning hole 22, then lifting up the swing arm 7 upwards, enabling the swing arm 7 to drive the slide rod 4 to move upwards in the hollow cylinder 3, inserting the bolt I24 into the bolt hole I23 again after the swing arm is lifted to a proper height, enabling the magnet 25 on the bolt I24 to be adsorbed to the hollow cylinder 3 again, enabling the bolt I24 to be clamped with the positioning hole 22 again, and enabling the slide rod 4 to be fixed;

s3, then placing a probe on the B-ultrasonic instrument between the L-shaped rod 35 and the clamping plate 39, then rotating a rotating block at the right end of the threaded rod 37, enabling the threaded rod 37 to drive a threaded sleeve 38 in threaded connection to move so as to clamp and fix the ultrasonic probe, then holding the probe by hand to perform B-ultrasonic examination on a patient, moving the I-shaped sliding block I32 in the T-shaped sliding groove II 31 by moving the I-shaped sliding block I32 during examination, stopping after moving to a proper position, and then controlling the I-shaped sliding block II 34 to slide in the arc-shaped sliding groove 33 to perform multi-azimuth examination on the patient;

s4, after the use is finished, the bolt II 29 is pulled out, the magnet II 30 on the bolt II 29 is not adsorbed to the L-shaped plate 5, meanwhile, the bolt II 29 is not clamped to the bolt hole III 28 on the extension plate 27, then the swing arm 7 is swung downwards, the swing arm 7 rotates by taking the fixed shaft 6 as an axis until the bolt hole III 28 on the extension plate 27 is overlapped with the bolt hole II 26 above the L-shaped plate 5, then the bolt II 29 is inserted into the bolt hole II 26 above the bolt II 29, and the magnet 30 on the bolt II 29 is adsorbed to the L-shaped plate 5 again, so that the swing arm 7 is fixed.

The above-mentioned embodiments, objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only examples of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a department of ultrasonics nursing is with B ultrasonic examination strutting arrangement, includes cross shaped plate (1), its characterized in that: the bottom surface of the cross-shaped plate (1) is provided with a first T-shaped sliding groove (2) at one side far away from the cross-shaped plate (1), one side far away from the four first T-shaped sliding grooves (2) is communicated with the outside, the middle part of the upper surface of the cross-shaped plate (1) is fixedly connected with a hollow cylinder (3), the middle part of the hollow cylinder (3) is slidably connected with a sliding rod (4), the upper surface of the sliding rod (4) is fixedly connected with two L-shaped plates (5), a fixed shaft (6) is fixedly connected between the two L-shaped plates (5), the fixed shaft (6) is sleeved in a round hole formed in a swinging arm (7), an arc-shaped plate (8) is arranged below the swinging arm (7), two connecting plates (9) are fixedly connected with the bottom surface of the cross-shaped plate (1) at one side far away from the one side, the lower ends of the two connecting plates (9) are fixedly connected with an arc-shaped cover (10), a rubber sucker (11) is arranged below the arc-shaped cover (10), the upper end of the rubber sucker (11) is fixedly connected with a square sliding rod (12), the middle part of the upper end of the arc-shaped cover (10) is provided with a square sliding hole (13), one side of the square sliding rod (12) is hinged with a square sliding block (14), and the square sliding block (14), the upper surface of the square block (14) is fixedly connected with a poking plate (15), four T-shaped sliding grooves (2) are respectively and slidably connected with a T-shaped sliding block (16), the lower end of the T-shaped sliding block (16) is fixedly connected with a trapezoidal block (17), the inclined surface of the trapezoidal block (17) is matched with the poking plate (15), four T-shaped sliding blocks (16) are respectively and fixedly connected with a connecting rod (18) on the back surface, the back end of each connecting rod (18) extends to the outside of the cross-shaped plate (1) to be fixedly connected with a handle (19), a sliding strip (20) is fixedly connected onto the inner side circumferential surface of the hollow cylinder (3), the sliding strip (20) is slidably connected into a sliding groove (21) formed in the sliding rod (4), a plurality of positioning holes (22) are formed in the left side of the sliding rod (4), a first bolt hole (23) is formed in the upper portion of the left side of the hollow cylinder (3), a first bolt hole (24) is slidably connected into the first bolt hole (23), the first bolt (24) is clamped with one of the plurality of the positioning holes (22), a magnet (25) is arranged on the first bolt (24), a magnet (25) is arranged on the left side of the first bolt (24), two magnet (25) and two magnet (7) are fixedly connected with the hollow cylinder (7) and are arranged on the left side of the hollow cylinder (7), a third bolt hole (28) is formed in the extension plate (27), the left side of the extension plate is clamped with a second bolt (29) in the second bolt hole (26) and the third bolt hole (28), a second magnet (30) is arranged on a second circular plate at the rear end of the second bolt (29), the second magnet (30) is adsorbed to the L-shaped plate (5) made of metal, a second T-shaped sliding groove (31) is formed in the bottom surface of the swing arm (7), a first I-shaped sliding block (32) is connected in the second T-shaped sliding groove (31) in a sliding mode, the first I-shaped sliding block (32) is arranged in a circular mode, the first I-shaped sliding block (32) is fixedly connected with the upper end of the arc-shaped plate (8), and an arc-shaped sliding groove (33) is formed in the arc-shaped plate (8), the arc-shaped sliding groove (33) is connected with a second I-shaped sliding block (34) in a sliding manner, the second I-shaped sliding block (34) is arranged in a square manner, an L-shaped rod (35) is fixedly connected onto the front side wall of the second I-shaped sliding block (34), a square sliding groove (36) is formed in the rear side of the L-shaped rod (35), the right end of the square sliding groove (36) is communicated with the outside, a threaded rod (37) is arranged inside the square sliding groove (36), the left end optical axis part of the threaded rod (37) is fixedly connected with the square sliding groove (36) through a bearing, and the right end of the threaded rod (37) extends to the outside of the L-shaped rod (35) and is fixedly connected with a rotating block, be provided with thread bush (38) in square spout (36), and thread bush (38) are square setting, and thread bush (38) and threaded rod (37) threaded connection, fixedly connected with grip block (39) on the preceding lateral wall of thread bush (38).