Burn plastic surgery skin tensioning device and use method thereof

Abstract

The present invention discloses a burn plastic surgery skin tensioning device and a method for using the same, comprising a circular plate 1, characterized in that: the circular plate 1 is fixedly connected to symmetrical cross bars, the symmetrical cross bars are respectively fixedly connected to electric push rods, the push rod ends of the symmetrical electric push rods are respectively fixedly connected to supporting circular plates, the circular plate 1 is fixedly connected to a group of evenly distributed vertical grooves, each of the vertical grooves is respectively provided with a round rod 1, each of the round rods 1 is respectively fixedly connected to the corresponding vertical groove, each of the vertical grooves is respectively fixedly connected to a square rod, each of the square rods is respectively fixedly connected to a circular plate 2, each of the square rods is respectively provided with a straight groove, and each of the straight grooves is respectively provided with a round rod 2. The present invention relates to the field of skin tensioning equipment, and specifically, to a burn plastic surgery skin tensioning device and a method for using the same. The technical problem to be solved by the present invention is to provide a burn plastic surgery skin tensioning device and a method for using the same, so as to facilitate burn plastic surgery skin tensioning.

Description

Technical Field

[0001] The invention relates to the field of skin tensioning equipment, and in particular to a burn plastic surgery skin tensioning device and a use method thereof. Background Art

[0002] During surgery, people need to stretch the wound open to observe the extent of the wound damage and make targeted treatment plans for the patient based on the extent of the wound damage, so that the patient can recover quickly and reduce the pain and inconvenience caused by the disease.

[0003] The traditional use of the dilator is that the user manually presses the dilator on the patient's skin, and then adjusts the height of the dilator based on the user's visual judgment so that the dilator fits tightly against the patient's wound. The dilator is then pulled to open the patient's wound.

[0004] A patent has been granted for a disposable retractable and adjustable lighting dilator for medical use, with the authorization announcement number CN113017724B. The dilator expands the skin by using a first bracket 1, a fixing frame 2, a dilator 3, a lighting lamp 4, a dilator mechanism 5, an adjustment mechanism 6 and a lighting mechanism 7. The device is fixed to the skin surface, and the device swings with the patient's body, which is inconvenient for subsequent surgery. In addition, the area where the skin can be fixed and the range of adjustment of the tension are small. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a burn plastic surgery skin tensioning device and a use method thereof, so as to facilitate burn plastic surgery skin tensioning.

[0006] The present invention adopts the following technical solutions to achieve the invention objectives:

[0007] A burn plastic surgery skin tensioning device and a method of using the same, comprising a circular plate 1, characterized in that: the circular plate 1 is fixedly connected to symmetrical cross bars, the symmetrical cross bars are respectively fixedly connected to electric push rods, the push rod ends of the symmetrical electric push rods are respectively fixedly connected to supporting circular plates, the circular plate 1 is fixedly connected to a group of evenly distributed vertical grooves, each of the vertical grooves is respectively provided with a circular rod 1, each of the circular rods is respectively fixedly connected to the corresponding vertical groove, each of the vertical grooves is respectively fixedly connected to a square rod, each of the square rods is respectively fixedly connected to a circular plate 2, each of the square rods is respectively provided with a straight groove, each of the straight grooves has a Two round rods are respectively provided, each of the two round rods is respectively fixedly connected to the corresponding square rod, the circular plate one is fixedly connected to the motor, the output shaft of the motor passes through the circular plate one, the output shaft of the motor is fixedly connected to the cylinder, the cylinder is provided with a group of evenly distributed arc grooves and flat grooves, the adjacent flat grooves and the ends of the arc grooves are connected, the distance between the flat grooves and the lowest points of the arc grooves is set according to the degree of skin tension, a tensioning mechanism is respectively provided in each of the vertical grooves, the tensioning mechanism is fixedly connected to the skin fixing mechanism, and the symmetrical electric push rods respectively rotate the connecting device fixing mechanism.

[0008] As a further limitation of the present technical solution, the tensioning mechanism includes a slider 1, each of the vertical grooves is respectively provided with a corresponding slider 1, each of the round rods 1 passes through the corresponding slider 1, each of the sliders 1 is respectively fixedly connected to a round block 2, each of the sliders 1 is respectively rotatably connected to an I-beam, each of the I-beams is respectively rotatably connected to a slider 2, each of the sliders 2 is respectively provided in the corresponding straight groove, each of the round rods 2 passes through the corresponding slider 2, each of the sliders 2 is respectively fixedly connected to a circular plate 3, and each of the circular plates 3 is respectively fixedly connected to a connecting plate.

[0009] As a further limitation of the present technical solution, the second round block matches the flat groove, and the round block matches the arc groove.

[0010] As a further limitation of the present technical solution, the skin fixation mechanism includes a group of evenly distributed brackets, each of the connecting plates is fixedly connected to the corresponding bracket, each of the brackets is fixedly connected to the convex plate, each of the brackets is bearing-connected to a circular shaft, each of the circular shafts is fixedly connected to handle two, and each of the circular shafts is fixedly connected to a swing assembly.

[0011] As a further limitation of the present technical solution, each of the swinging components comprises a group of four evenly distributed circular plates, each of the circular shafts is fixedly connected to the uppermost one of the four circular plates in each group, the edge of each of the four circular plates is rotatably connected to one end of three evenly distributed connecting rods, the lowermost one of the four circular plates in each group is fixedly connected to three circular rods, the middle part of each of the three circular rods is fixedly connected to a hollow square box, each of the hollow square boxes is fixedly connected to two exhaust pipes, each of the hollow square boxes is fixedly connected to a convex groove, each of the convex plates is arranged in the corresponding convex groove, the lower end of each of the three circular rods is fixedly connected to a suction cup, and each of the suction cups is fixedly connected to one exhaust pipe.

[0012] As a further limitation of the present technical solution, the fixing mechanism of the device includes two groups of symmetrical round blocks, and the symmetrical electric push rods are respectively rotatably connected to the corresponding round blocks, each of the round blocks is respectively fixedly connected to one end of a long rod, and the other end of each long rod is respectively threadedly connected to a screw, each of the screws is respectively fixedly connected to a handle, and each of the screws is respectively fixedly connected to an electric suction cup.

[0013] A method for using a burn plastic surgery skin tensioning device, characterized by comprising the following steps:

[0014] Step 1: The patient lies in a suitable area, makes the supporting circular plate contact the fixed table, swings the long rod, and the long rod drives the circular block 1 to rotate, and the long rod drives the screw rod, the handle 1 and the electric suction cup to swing, so that the electric suction cup swings to a suitable position;

[0015] Step 2: Turn the handle 1 to make the electric suction cup contact the table surface, and operate the electric suction cup to fix the electric suction cup on the table surface;

[0016] Step 3: adjusting the position of the suction cup according to the burned skin area;

[0017] Step 4: operating the electric push rod to make the suction cup contact the skin;

[0018] Step 5: Use a hose to connect the vacuum pump, the first suction pipe and the second suction pipe, so that the suction cup can suck the skin tightly and the hollow square box can suck the convex plate tightly;

[0019] Step six: operate the motor to make the suction cup drive the skin to move, thereby achieving skin tensioning.

[0020] As a further limitation of the present technical solution, the specific process of step three is: rotate the handle two, the handle two drives the circular shaft to rotate, the circular shaft drives the upper circular plate four to rotate, the upper circular plate four drives the upper connecting rod to swing, and the circular plate four is rotated to connect the connecting rod, so that all the other circular plates four and the connecting rods can swing, so that the lowermost circular plate four drives the circular rod three to move, the circular rod three drives the hollow square box to move, the hollow square box drives the convex groove to move along the convex plate, and the circular rod three drives the suction cup to move.

[0021] As a further limitation of the present technical solution, the specific process of step six is: the motor drives the cylinder to rotate, the cylinder drives the round block two to move along the arc groove, the round block two drives the slider one to move along the straight groove in the vertical groove, the slider one drives the I-beam to swing, the I-beam drives the slider two to move along the round rod two in the straight groove, the slider two drives the circular plate three, the connecting plate and the skin fixing mechanism to move, so that the suction cup of the skin fixing mechanism drives the skin to move, so that the round block two enters the flat groove to achieve skin tensioning.

[0022] As a further limitation of the present technical solution, the convex plate is made of rubber material.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are:

[0024] 1. The device is provided with interconnected arc grooves and flat grooves. The distance between the lowest points of the flat grooves and the arc grooves is set according to the degree of skin tension. For example, different levels of tensioning devices can be set for patients with different needs. The suction cup is swung by the drive of the motor and related components, thereby facilitating the tensioning of the skin on the burn site.

[0025] 2. The device adopts a swinging assembly, which includes a group of four evenly distributed circular plates. The circular shaft is fixedly connected to the uppermost circular plate four. By rotating one end of three evenly distributed connecting rods connected at the edge of the circular plate four, when the circular shaft rotates, the position of the suction cup can be quickly adjusted, thereby facilitating the tensioning of the skin on the burn site.

[0026] 3. The device is cleverly designed to achieve overall fixation of the device, so that the device will not change with the patient's body movements, making it more convenient to achieve burn skin plastic surgery.

[0027] 4. This device achieves synchronous fixation and release through the simultaneous adsorption of the first and second exhaust pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 .

[0029] Figure 2 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 1 .

[0030] Figure 3 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 2 .

[0031] Figure 4 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 3 .

[0032] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 4 .

[0033] Figure 6 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 5 .

[0034] Figure 7 It is a schematic diagram of the local three-dimensional structure of the present invention Figure 6 .

[0035] Figure 8 The three-dimensional structure of the present invention is shown in FIG. Figure 2 .

[0036] In the figure: 1, electric push rod, 2, cross bar, 4, motor, 5, round plate 1, 6, handle 1, 7, screw, 8, electric suction cup, 9, long rod, 10, round block 1, 11, flat groove, 12, arc groove, 13, supporting round plate, 14, square rod, 15, round plate 2, 16, vertical groove, 17, round rod 1, 18, straight groove, 19, round rod 2, 20, round block 2, 21, slider 1, 22, round plate 3, 23, I-beam, 24, slider 2, 25, connecting plate, 26, handle 2, 27, bracket, 28, round shaft, 29, round plate 4, 30, round rod 3, 31, hollow square box, 32, suction cup, 33, exhaust pipe 1, 34, exhaust pipe 2, 35, convex groove, 36, convex plate, 37, connecting rod, 38, cylinder. DETAILED DESCRIPTION

[0037] A specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation.

[0038] The present invention comprises a circular plate 15, wherein the circular plate 15 is fixedly connected to a symmetrical cross bar 2, wherein the symmetrical cross bars 2 are respectively fixedly connected to an electric push rod 1, wherein the push rod ends of the symmetrical electric push rod 1 are respectively fixedly connected to a supporting circular plate 13, wherein the circular plate 15 is fixedly connected to a group of evenly distributed vertical grooves 16, wherein each vertical groove 16 is respectively provided with a round rod 17, wherein each round rod 17 is respectively fixedly connected to the corresponding vertical groove 16, wherein each vertical groove 16 is respectively fixedly connected to a square rod 14, wherein each square rod 14 is respectively fixedly connected to a circular plate 2 15, wherein each square rod 14 is respectively provided with a straight groove 18, wherein each straight groove 18 is respectively provided with a round rod 2 19, wherein each round rod 2 19 is respectively provided with a round rod 2 19. The corresponding square rod 14 is fixedly connected, the circular plate 15 is fixedly connected to the motor 4, the output shaft of the motor 4 passes through the circular plate 15, and the output shaft of the motor 4 is fixedly connected to the cylinder 38. The cylinder 38 is provided with a group of evenly distributed arc grooves 12 and flat grooves 11, and the adjacent flat grooves 11 and the ends of the arc grooves 12 are connected. The distance between the lowest points of the flat grooves 11 and the arc grooves 12 is set according to the degree of skin tension. For example, different levels of tensioning devices can be set for patients with different needs. A tensioning mechanism is respectively arranged in each of the vertical grooves 16, and the tensioning mechanism is fixedly connected to the skin fixing mechanism. The symmetrical electric push rods 1 respectively rotate the connecting device fixing mechanism.

[0039] The tensioning mechanism includes a slider 21, each of the vertical grooves 16 is respectively provided with a corresponding slider 21, each of the round rods 17 passes through the corresponding slider 21, each of the sliders 21 is respectively fixedly connected to the round block 20, each of the sliders 21 is respectively rotatably connected to the I-beam 23, each of the I-beam 23 is respectively rotatably connected to the slider 24, each of the sliders 24 is respectively provided in the corresponding straight grooves 18, each of the round rods 2 19 passes through the corresponding slider 24, each of the sliders 24 is respectively fixedly connected to the circular plate 3 22, and each of the circular plate 3 22 is respectively fixedly connected to the connecting plate 25.

[0040] The round block 20 matches the flat groove 11 , and the round block 20 matches the arc groove 12 .

[0041] The skin fixation mechanism includes a group of evenly distributed brackets 27, each of the connecting plates 25 is fixedly connected to the corresponding bracket 27, each of the brackets 27 is fixedly connected to the convex plate 36, each of the brackets 27 is bearing-connected to the circular shaft 28, each of the circular shafts 28 is fixedly connected to the handle 2 26, and each of the circular shafts 28 is fixedly connected to the swing assembly.

[0042] Each of the swinging components includes a group of evenly distributed circular plates 29, each of the circular shafts 28 is fixedly connected to the uppermost one of each group of circular plates 29, the edge of each circular plate 29 is rotatably connected to one end of three evenly distributed connecting rods 37, the lowermost one of each group of circular plates 29 is fixedly connected to a circular rod 30, the middle part of each circular rod 30 is fixedly connected to a hollow square box 31, each hollow square box 31 is fixedly connected to an exhaust pipe 2 34, each hollow square box 31 is fixedly connected to a convex groove 35, each convex plate 36 is arranged in a corresponding convex groove 35, the lower end of each circular rod 30 is fixedly connected to a suction cup 32, and each suction cup 32 is fixedly connected to an exhaust pipe 1 33.

[0043] The device fixing mechanism includes two groups of symmetrical round blocks 10, and the symmetrical electric push rods 1 are respectively rotatably connected to the corresponding round blocks 10, each of the round blocks 10 is respectively fixedly connected to one end of the long rod 9, and the other end of each long rod 9 is respectively threadedly connected to the screw 7, each of the screws 7 is respectively fixedly connected to the handle 6, and each of the screws 7 is respectively fixedly connected to the electric suction cup 8.

[0044] A method for using a burn plastic surgery skin tensioning device comprises the following steps:

[0045] Step 1: The patient lies in a suitable area, makes the supporting circular plate 13 contact the fixed table, swings the long rod 9, and the long rod 9 drives the circular block 10 to rotate, and the long rod 9 drives the screw rod 7, the handle 1 6 and the electric suction cup 8 to swing, so that the electric suction cup 8 swings to a suitable position;

[0046] Step 2: Turn the handle 1 6 to make the electric suction cup 8 contact the table surface, and operate the electric suction cup 8 to fix the electric suction cup 8 to the table surface;

[0047] Step 3: Adjust the position of the suction cup 32 according to the burned skin area;

[0048] Step 4: operate the electric push rod 1 to make the suction cup 32 contact the skin;

[0049] Step 5: Use a hose to connect the vacuum pump, the first suction pipe 33 and the second suction pipe 34, so that the suction cup 32 sucks the skin tightly, and the hollow square box 31 sucks the convex plate 36 tightly;

[0050] Step six: operate the motor 4 to enable the suction cup 32 to move the skin to achieve skin tensioning.

[0051] The specific process of step three is: rotate the handle 26, the handle 26 drives the circular shaft 28 to rotate, the circular shaft 28 drives the upper circular plate 4 29 to rotate, the upper circular plate 4 29 drives the upper connecting rod 37 to swing, and the circular plate 4 29 is used to rotate and connect the connecting rod 37, so that all the other circular plates 4 29 and the connecting rod 37 can swing, so that the lowermost circular plate 4 29 drives the circular rod 3 30 to move, the circular rod 30 drives the hollow square box 31 to move, the hollow square box 31 drives the convex groove 35 to move along the convex plate 36, and the circular rod 30 drives the suction cup 32 to move.

[0052] The specific process of step six is ​​as follows: the motor 4 drives the cylinder 38 to rotate, the cylinder 38 drives the round block 20 to move along the arc groove 12, the round block 20 drives the slider 1 21 to move along the straight groove 18 in the vertical groove 16, the slider 1 21 drives the I-beam 23 to swing, the I-beam 23 drives the slider 2 24 to move along the round rod 2 19 in the straight groove 18, the slider 2 24 drives the circular plate 3 22, the connecting plate 25 and the skin fixing mechanism to move, so that the suction cup 32 of the skin fixing mechanism drives the skin to move, so that the round block 2 20 enters the flat groove 11 to achieve skin tensioning.

[0053] The convex plate 36 is made of rubber material.

[0054] The working process of the present invention is as follows: the patient lies in a suitable area, contacts the supporting circular plate 13 with a fixed table, swings the long rod 9, the long rod 9 drives the circular block 10 to rotate, and the long rod 9 drives the screw rod 7, the handle 6 and the electric suction cup 8 to swing, so that the electric suction cup 8 swings to a suitable position.

[0055] Turn the handle 6 to make the electric suction cup 8 contact the table surface, and operate the electric suction cup 8 to fix the electric suction cup 8 to the table surface.

[0056] Adjust the position of the suction cup 32 according to the burned skin area; turn the handle 26, the handle 26 drives the circular shaft 28 to rotate, the circular shaft 28 drives the upper circular plate 4 29 to rotate, the upper circular plate 4 29 drives the upper connecting rod 37 to swing, and the circular plate 4 29 is used to rotate the connecting rod 37, so that all the other circular plates 4 29 and connecting rods 37 can swing, so that the lowermost circular plate 4 29 drives the circular rod 30 to move, the circular rod 30 drives the hollow square box 31 to move, the hollow square box 31 drives the convex groove 35 to move along the convex plate 36, and the circular rod 30 drives the suction cup 32 to move, so that the suction cup 32 swings to a suitable position.

[0057] The electric push rod 1 is operated to make the suction cup 32 contact the skin.

[0058] A hose is used to connect the vacuum pump, the suction pipe 1 33 and the suction pipe 2 34 so that the suction cup 32 can suck the skin tightly and the hollow square box 31 can suck the convex plate 36 tightly.

[0059] The motor 4 is operated to make the suction cup 32 drive the skin to move, so as to achieve skin tension. The motor 4 drives the cylinder 38 to rotate, and the cylinder 38 drives the round block 20 to move along the arc groove 12, and the round block 20 drives the slider 1 21 to move along the straight groove 18 in the vertical groove 16, and the slider 1 21 drives the I-shaped rod 23 to swing, and the I-shaped rod 23 drives the slider 2 24 to move along the round rod 2 19 in the straight groove 18, and the slider 2 24 drives the circular plate 3 22, the connecting plate 25 and the skin fixing mechanism to move, so that the suction cup 32 of the skin fixing mechanism drives the skin to move, so that the round block 20 enters the flat groove 11, so as to achieve skin tension.

[0060] The device is provided with an arc groove 12 and a flat groove 11 which are interconnected. The lowest point distance between the flat groove 11 and the arc groove 12 is set according to the degree of skin tension. The suction cup 32 is swung by the motor 4 and the related components, thereby facilitating the tensioning of the skin on the burnt part.

[0061] The device adopts a swinging assembly, which includes a group of evenly distributed circular plates 29, and a circular shaft 28 is fixedly connected to the uppermost circular plate 29. By rotating one end of three evenly distributed connecting rods 37 connected at the edge of the circular plate 29, when the circular shaft 28 rotates, the position of the suction cup 32 can be quickly adjusted, thereby facilitating the tensioning of the skin of the burnt area.

[0062] The device is cleverly designed to achieve overall fixation of the device, so that the device will not change with the patient's body movements, and burn skin plastic surgery can be achieved more conveniently.

[0063] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A burn plastic surgery skin tensioning device, comprising a circular plate (5), characterized in that: The circular plate 1 (5) is fixedly connected to symmetrical cross bars (2), the symmetrical cross bars (2) are respectively fixedly connected to electric push rods (1), and the push rod ends of the symmetrical electric push rods (1) are respectively fixedly connected to the supporting circular plate (13); The circular plate 1 (5) is fixedly connected to a group of evenly distributed vertical grooves (16), each of the vertical grooves (16) is provided with a round rod 1 (17), each of the round rods 1 (17) is fixedly connected to the corresponding vertical groove (16), each of the vertical grooves (16) is fixedly connected to a square rod (14), and each of the square rods (14) is fixedly connected to the circular plate 2 (15); Each of the square rods (14) is provided with a straight groove (18), each of the straight grooves (18) is provided with a second round rod (19), and each of the second round rods (19) is fixedly connected to the corresponding square rod (14); The circular plate one (5) is fixedly connected to the motor (4), the output shaft of the motor (4) passes through the circular plate one (5), and the output shaft of the motor (4) is fixedly connected to the cylinder (38); The cylinder (38) is provided with a group of evenly distributed arc grooves (12) and flat grooves (11), and the ends of adjacent flat grooves (11) and arc grooves (12) are connected; The distance between the lowest points of the flat groove (11) and the arc-shaped groove (12) is set according to the degree of skin tension; A tensioning mechanism is respectively arranged in each of the vertical slots (16); The tensioning mechanism is fixedly connected to the skin fixing mechanism; The symmetrical electric push rods (1) respectively rotate the connecting device fixing mechanism; The tensioning mechanism comprises a slider 1 (21), each of the vertical slots (16) is respectively provided with a corresponding slider 1 (21), each of the round rods 1 (17) passes through the corresponding slider 1 (21), each of the sliders 1 (21) is respectively fixedly connected to the round block 2 (20), each of the sliders 1 (21) is respectively rotatably connected to an I-shaped rod (23), each of the I-shaped rods (23) is respectively rotatably connected to a slider 2 (24), each of the sliders 2 (24) is respectively provided in the corresponding straight slot (18), each of the round rods 2 (19) passes through the corresponding slider 2 (24), each of the sliders 2 (24) is respectively fixedly connected to a circular plate 3 (22), and each of the circular plates 3 (22) is respectively fixedly connected to a connecting plate (25); The second round block (20) matches the flat groove (11), and the second round block (20) matches the arc groove (12); The skin fixing mechanism comprises a group of evenly distributed brackets (27), each of the connecting plates (25) is respectively fixedly connected to the corresponding bracket (27), each of the brackets (27) is respectively fixedly connected to the convex plate (36), each of the brackets (27) is respectively bearing-connected to a circular shaft (28), each of the circular shafts (28) is respectively fixedly connected to the second handle (26), and each of the circular shafts (28) is respectively fixedly connected to a swing assembly; Each of the swinging components comprises a group of evenly distributed circular plates (29), each of the circular shafts (28) is respectively fixedly connected to the uppermost one of each group of circular plates (29), the edge of each circular plate (29) is respectively rotatably connected to one end of three evenly distributed connecting rods (37), the lowermost one of each group of circular plates (29) is respectively fixedly connected to circular rod three (30), the middle of each circular rod three (30) is respectively fixedly connected to a hollow square box (31), each of the hollow square boxes (31) is respectively fixedly connected to an exhaust pipe two (34), each of the hollow square boxes (31) is respectively fixedly connected to a convex groove (35), each of the convex plates (36) is respectively arranged in a corresponding convex groove (35), the lower end of each circular rod three (30) is respectively fixedly connected to a suction cup (32), and each of the suction cups (32) is respectively fixedly connected to an exhaust pipe one (33).

2. The burn plastic surgery skin tensioning device according to claim 1, characterized in that: The device fixing mechanism comprises two groups of symmetrical round blocks (10), the symmetrical electric push rods (1) are respectively rotatably connected to the corresponding round blocks (10), each of the round blocks (10) is respectively fixedly connected to one end of a long rod (9), the other end of each of the long rods (9) is respectively threadedly connected to a screw rod (7), each of the screw rods (7) is respectively fixedly connected to a handle (6), and each of the screw rods (7) is respectively fixedly connected to an electric suction cup (8).

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