Anesthesia airway auxiliary management device

Abstract

The invention discloses an anesthesia airway auxiliary management device, and belongs to the technical field of medical instruments, the anesthesia airway auxiliary management device comprises a base, two height adjusting mechanisms for adjusting the height of the neck and the height of the head are mounted on the base, and a direction adjusting mechanism for quickly adjusting the height of a mask and the plane direction is mounted at one end of the base; the output end of the direction adjusting mechanism is provided with an elastic fitting mechanism for elastically fitting the face of a patient, the elastic fitting mechanism comprises an elastic pressing assembly and a magnetic quick release assembly, and the elastic pressing assembly is installed at the output end of the direction adjusting mechanism; the magnetic quick-release assembly is installed on the side, away from the output end of the direction adjusting mechanism, of the elastic pressing assembly. By means of the mode, the breathing mask can be rapidly attached to the face of a patient and continuously exert pressure, meanwhile, the breathing mask can be rapidly disassembled and assembled, the head and the neck can be lifted according to different requirements of different patients, and opening of the airway of the patient is facilitated.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an anesthesia airway management device. Background Technology

[0002] Anesthesia airway management devices are used during anesthesia or in emergency situations to help establish, maintain, or protect the patient's airway patency. They are a type of medical device that ensures effective ventilation and oxygenation. In the management of patients with difficult airways, obesity often leads to fat accumulation in the cheeks. Two people are needed to work together to apply appropriate pressure to the breathing mask to maintain an effective fit between the mask and the face. This involves lifting the chin to open the airway and applying pressure to the edges to seal the mask, reducing oxygen leakage through gaps between the mask and the face, and ensuring effective ventilation to maintain the patient's oxygen saturation. Currently, multiple people working together to apply pressure can easily lead to excessive compression of the mask edges on the patient's cheeks, nose, and other facial soft tissues, causing temporary ischemia or mechanical damage to the local skin and mucous membranes. After awakening, patients often experience soreness and tenderness in the pressure areas of the face, or dryness, pain, and discomfort in the throat when swallowing. This not only affects early postoperative comfort but may also temporarily interfere with daily activities such as eating and drinking.

[0003] Chinese Patent CN113842535B discloses a mask fixing device and an anesthesia airway management device having the same. The device includes a mask body with a base, a fixing part fixedly mounted on the base, and at least two working states: a pull cord passing through the fixing part, such that when the pull cord is tightened, the mask body fits snugly against the face to ensure a seal; the first working state is during the tightening process of the pull cord, and the second working state is after the pull cord is fully tightened; the base has a connecting part; the fixing part includes a base body adapted to connect with the connecting part; an opening / closing part movably mounted on the base body to press or release the pull cord; and a locking part mounted on the base body to lock the opening / closing part onto the base body. Furthermore, a bearing is provided on one side of the base body, and a flange extends from the opening / closing part.

[0004] However, the technical solution of this patent has the following problems: This patent does not allow for quick application of the breathing mask to the patient's face and sustained pressure, nor does it allow for quick disassembly and installation of the breathing mask, nor does it allow for the elevation of the head and neck according to the different needs of different patients.

[0005] Based on this, the present invention designs an anesthetic airway auxiliary management device to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides an anesthetic airway auxiliary management device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: An anesthetic airway management device includes a base, on which are installed two height adjustment mechanisms for adjusting the height of the neck and head, and at one end of the base is an orientation adjustment mechanism for quickly adjusting the height and planar orientation of the face mask. At the output end of the orientation adjustment mechanism is an elastic fitting mechanism for elastically fitting the patient's face. The elastic bonding mechanism includes an elastic pressing component and a magnetic quick-release component. The elastic pressing component is installed at the output end of the orientation adjustment mechanism, and the magnetic quick-release component is installed on the side of the elastic pressing component away from the output end of the orientation adjustment mechanism.

[0008] Furthermore, the elastic pressing component includes a sliding component and an elastic component, wherein the sliding component is installed at the output end of the orientation adjustment mechanism, and the elastic component is installed on the sliding component.

[0009] Furthermore, the sliding assembly includes: a support plate, a linear bearing, a cylindrical shaft, and a limiting ring. The support plate is installed at the output end of the orientation adjustment mechanism, multiple linear bearings are fixedly installed on the support plate, the cylindrical shaft is slidably connected to the linear bearings, and the limiting ring is fixedly installed on the upper side of the cylindrical shaft.

[0010] Furthermore, the elastic component includes a fixing block and a spring. The fixing block is fixedly installed at the end of the cylindrical shaft away from the linear bearing. The spring is sleeved on the cylindrical shaft, with one end of the spring in close contact with the fixing block and the other end of the spring in close contact with the linear bearing.

[0011] Furthermore, the magnetic quick-release assembly includes a connecting assembly and a face shield assembly, wherein the connecting assembly is mounted on the end of the cylindrical shaft away from the fixing block, and the face shield assembly is mounted on the connecting assembly.

[0012] Furthermore, the connecting component includes: an abutment block and a magnet, the abutment block being fixedly installed at the end of the cylindrical shaft away from the fixed block, a rectangular slot being provided on one side of the abutment block, and the magnet being fixedly installed on the rectangular slot.

[0013] Furthermore, the mask assembly includes: a magnetic sheet, an extension block, and a breathing mask. The magnetic sheet is magnetically attracted to a magnet within a rectangular slot. The extension block is fixedly mounted on the magnetic sheet, and the breathing mask is fixedly mounted on the extension block.

[0014] Furthermore, the height adjustment mechanism includes a drive mechanism and a rotation mechanism. The drive mechanism is mounted on the base, and the rotation mechanism is mounted on the base. The drive mechanism includes a guide rail, a slider, a horizontal plate, guide wheels, and an electric telescopic rod. Two guide rails are fixedly mounted on the left and right sides of the base. The slider is slidably connected to the guide rail. The horizontal plate is fixedly mounted on the slider. Guide wheels are rotatably connected to both sides of the horizontal plate via a rotating shaft.

[0015] Furthermore, the rotating mechanism includes a rotating plate and a supporting inclined plate. The rotating plate is rotatably connected to the base via a rotating shaft. The two supporting inclined plates are fixedly installed on the left and right sides of the rotating plate, respectively. The guide wheel is located on the inclined surface of the supporting inclined plate.

[0016] Furthermore, the orientation adjustment mechanism includes: a hollow column, a drive motor, a threaded rod, a moving block, a sleeve rod, a first connecting plate, and a second connecting plate. The hollow column is fixedly installed on one side of the base, and two strip-shaped openings are formed on the hollow column. The drive motor is fixedly installed on the hollow column on one side of the base. One end of the threaded rod is fixedly installed on the output shaft of the drive motor, and the other end of the threaded rod is rotatably connected to the hollow column. Both ends of the moving block are slidably connected to the two strip-shaped openings, and the middle side of the moving block is threadedly connected to the threaded rod. The sleeve rod is slidably connected to the hollow column, and an annular groove is formed on the middle side of the sleeve rod. One end of the moving block that passes through the strip-shaped opening is located in the annular groove and can slide within the annular groove. The first connecting plate is fixedly installed on the sleeve rod, and the second connecting plate is rotatably connected to the end of the first connecting plate away from the sleeve rod via a rotating shaft. One side of the support plate is rotatably connected to the end of the second connecting plate away from the first connecting plate via a rotating shaft.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. The present invention uses an orientation adjustment mechanism to drive an elastic pressing component so that the magnetic quick-release component fits the patient's face. The spring provides continuous pressure to maintain the fit between the face and the magnetic quick-release component. The cylindrical axis of the elastic pressing component moves towards the patient's face, causing the magnetic quick-release component to move towards the patient's face, so that the magnetic quick-release component fits the patient's face. The breathing mask of the magnetic quick-release component fits the patient's face, which is conducive to quickly fitting the breathing mask to the patient's face, reducing oxygen leakage from the gap between the mask and the face, ensuring effective ventilation to maintain the patient's oxygen saturation. Only the pressure at the contact point between the mask and the face reduces the compression of the patient's throat and other facial soft tissues, improves postoperative comfort, and facilitates quick fitting of the breathing mask to the patient's face and continuous pressure. 2. By removing the magnetic quick-release assembly from the patient's face, the breathing mask is removed and replaced with a new one. The extension block of the new breathing mask is placed in the rectangular slot of the abutment block. At this time, the magnetic plate on the extension block is attracted by the magnet in the rectangular slot, which allows for quick replacement and installation of the breathing mask while avoiding cross-infection. The electric telescopic rod of the height adjustment mechanism shortens, causing the horizontal plate to move towards the supporting inclined plate. The horizontal plate moving towards the supporting inclined plate causes the guide wheel to move towards the supporting inclined plate. The guide wheel moving towards the supporting inclined plate causes the supporting inclined plate to rotate. The rotation of the supporting inclined plate causes the rotating plate to rotate, which lifts the patient's head or neck. Depending on the different needs of different patients, the head and neck are lifted to facilitate the opening of the patient's airway. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a partial structural diagram of the elastic bonding mechanism of the present invention. Figure 1 ; Figure 4 This is a partial structural diagram of the elastic bonding mechanism of the present invention. Figure 2 ; Figure 5 This is a partial structural diagram of the elastic bonding mechanism of the present invention. Figure 3 ; Figure 6 This is a partial structural schematic diagram of the height adjustment mechanism of the present invention; Figure 7 This is a partial structural diagram of the orientation adjustment mechanism of the present invention. Figure 1 ; Figure 8 This is a partial structural diagram of the orientation adjustment mechanism of the present invention. Figure 2 .

[0020] The labels in the diagram represent: 1. Base; 2. Height adjustment mechanism; 21. Guide rail; 22. Slider; 23. Horizontal plate; 24. Guide wheel; 25. Electric telescopic rod; 26. Rotating plate; 27. Supporting inclined plate; 3. Orientation adjustment mechanism; 31. Hollow column; 32. Drive motor; 33. Threaded rod; 34. Moving block; 35. Sleeve rod; 36. First connecting plate; 37. Second connecting plate; 38. Strip opening; 39. Annular slot; 4. Elastic fitting mechanism; 41. Support plate; 42. Linear bearing; 43. Cylindrical shaft; 44. Limiting ring; 45. Fixing block; 46. Spring; 47. Abutment block; 48. Magnet; 49. Rectangular slot; 410. Magnetizing sheet; 411. Extension block; 412. Breathing mask. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0024] Example 1: In some examples, please refer to Figures 1-8 An anesthetic airway management device includes a base 1, on which two height adjustment mechanisms 2 are installed for adjusting the height of the neck and head. One end of the base 1 is equipped with a position adjustment mechanism 3 for quickly adjusting the height and planar orientation of the face mask. The output end of the position adjustment mechanism 3 is equipped with an elastic fitting mechanism 4 for elastically fitting the patient's face.

[0025] like Figure 3 , Figure 4 , Figure 5 As shown, the elastic bonding mechanism 4 includes an elastic pressing component and a magnetic quick-release component. The elastic pressing component is installed at the output end of the orientation adjustment mechanism 3, and the magnetic quick-release component is installed on the side of the elastic pressing component away from the output end of the orientation adjustment mechanism 3.

[0026] The elastic pressing component includes a sliding component and an elastic component. The sliding component is installed at the output end of the orientation adjustment mechanism 3, and the elastic component is installed on the sliding component.

[0027] The sliding assembly includes a support plate 41, a linear bearing 42, a cylindrical shaft 43, and a limiting ring 44. The support plate 41 is installed at the output end of the orientation adjustment mechanism 3. Multiple linear bearings 42 are fixedly installed on the support plate 41. The cylindrical shaft 43 is slidably connected to the linear bearings 42. The limiting ring 44 is fixedly installed on the upper side of the cylindrical shaft 43. The limiting ring 44 is used to limit the cylindrical shaft 43 and prevent the cylindrical shaft 43 from sliding out of the linear bearings 42.

[0028] The elastic component includes a fixing block 45 and a spring 46. The fixing block 45 is fixedly installed at the end of the cylindrical shaft 43 away from the linear bearing 42. The spring 46 is sleeved on the cylindrical shaft 43. One end of the spring 46 is in close contact with the fixing block 45, and the other end of the spring 46 is in close contact with the linear bearing 42.

[0029] The patient's head is placed on the height adjustment mechanism 2. The orientation adjustment mechanism 3 quickly moves the elastic fitting mechanism 4 to a preset position on the patient's face. As the elastic fitting mechanism 4 moves toward the preset position on the patient's face, the support plate 41 of the sliding component of the elastic pressing component moves toward the preset position on the patient's face, causing the linear bearing 42 to move toward the patient's face. The linear bearing 42 moves toward the patient's face, causing the spring 46 to move toward the patient's face. The spring 46 moves toward the patient's face, causing the fixing block 45 to move toward the patient's face. The fixing block 45 moves toward the patient's face, causing the cylindrical shaft 43 to move toward the patient's face. The cylindrical shaft 43 moves toward the patient's face, causing the magnetic quick-release component to move toward the patient's face, so that the magnetic quick-release component fits the patient's face. The spring 46 provides continuous pressure to maintain the fit between the face and the magnetic quick-release component.

[0030] The magnetic quick-release assembly includes a connecting component and a face shield assembly. The connecting component is mounted on the end of the cylindrical shaft 43 away from the fixing block 45, and the face shield assembly is mounted on the connecting component.

[0031] The connecting assembly includes an abutment block 47 and a magnet 48. The abutment block 47 is fixedly installed at one end of the cylindrical shaft 43 away from the fixing block 45. A rectangular slot 49 is provided on one side of the abutment block 47, and the magnet 48 is fixedly installed on the rectangular slot 49.

[0032] The mask assembly includes a magnetic sheet 410, an extension block 411, and a breathing mask 412. The magnetic sheet 410 is magnetically attracted to a magnet 48 within a rectangular slot 49. The extension block 411 is fixedly mounted on the magnetic sheet 410, and the breathing mask 412 is fixedly mounted on the extension block 411. The magnetic sheet 410 is made of iron, cobalt, nickel, or their alloys that can be attracted by the magnet 48.

[0033] The cylindrical shaft 43 moves toward the patient's face, causing the magnetic quick-release assembly to move toward the patient's face, so that the magnetic quick-release assembly fits the patient's face. The breathing mask 412 of the magnetic quick-release assembly fits the patient's face, which is conducive to quickly fitting the breathing mask 412 to the patient's face, reducing oxygen leakage from the gap between the mask and the face, ensuring effective ventilation to maintain the patient's oxygen saturation, and reducing pressure on the part of the mask that contacts the face, thus reducing compression of the patient's throat and other facial soft tissues and improving postoperative comfort.

[0034] When the breathing mask 412 needs to be quickly replaced, the magnetic quick-release assembly is moved out of the patient's face, the breathing mask 412 is removed, and a new breathing mask 412 is put on. The extension block 411 of the new breathing mask 412 is placed in the rectangular slot 49 of the abutment block 47. At this time, the magnetic sheet 410 on the extension block 411 is attracted by the magnet 48 in the rectangular slot 49, so that the breathing mask 412 can be quickly replaced and installed, while avoiding cross-infection.

[0035] Example 2: In some embodiments, such as Figures 1-8 As shown, in a preferred embodiment of the present invention, the height adjustment mechanism 2 includes a drive mechanism and a rotation mechanism. The drive mechanism is mounted on the base 1, and the rotation mechanism is mounted on the base 1. The drive mechanism includes a guide rail 21, a slider 22, a horizontal plate 23, guide wheels 24, and an electric telescopic rod 25. The two guide rails 21 are fixedly mounted on the left and right sides of the base 1. The slider 22 is slidably connected to the guide rail 21. The horizontal plate 23 is fixedly mounted on the slider 22. Guide wheels 24 are rotatably connected to the left and right sides of the horizontal plate 23 through a rotating shaft. The electric telescopic rod 25 can be configured as a servo electric cylinder. The guide rail 21 and the slider 22 are used to limit the movement of the horizontal plate 23.

[0036] like Figure 6 As shown, the rotating mechanism includes a rotating plate 26 and a supporting inclined plate 27. The rotating plate 26 is rotatably connected to the base 1 via a rotating shaft. The two supporting inclined plates 27 are respectively fixedly installed on the left and right sides of the rotating plate 26. The guide wheel 24 is located on the inclined surface of the supporting inclined plate 27.

[0037] The electric telescopic rod 25 of the drive mechanism of the height adjustment mechanism 2 shortens, causing the horizontal plate 23 to move towards the supporting inclined plate 27. The movement of the horizontal plate 23 towards the supporting inclined plate 27 causes the guide wheel 24 to move towards the supporting inclined plate 27. The movement of the guide wheel 24 towards the supporting inclined plate 27 causes the supporting inclined plate 27 to rotate. The rotation of the supporting inclined plate 27 causes the rotating plate 26 to rotate. The rotation of the rotating plate 26 raises the patient's head or neck. According to the different needs of different patients, the head and neck are raised, which is conducive to opening the patient's airway, while reducing the height of the base 1 occupied by the height adjustment mechanism 2.

[0038] Example 3: In some embodiments, such as Figures 1-8 As shown, in a preferred embodiment of the present invention, the orientation adjustment mechanism 3 includes: a hollow column 31, a drive motor 32, a threaded rod 33, a moving block 34, a sleeve rod 35, a first connecting plate 36, and a second connecting plate 37. The hollow column 31 is fixedly installed on one side of the base 1, and two strip-shaped openings 38 are formed on the hollow column 31. The drive motor 32 is fixedly installed on the side of the hollow column 31 located on the base 1. One end 33 of the threaded rod is fixedly installed on the output shaft of the drive motor 32, and the other end 33 of the threaded rod is rotatably connected to the hollow column 31. The two ends of the moving block 34 are respectively slidably connected. The movable block 34 is threadedly connected to the threaded rod 33 on the middle side of the two strip-shaped openings 38. The sleeve rod 35 is slidably connected to the hollow column 31. The sleeve rod 35 has an annular groove 39 on the middle side. One end of the movable block 34 that passes through the strip-shaped opening 38 is located in the annular groove 39 and can slide in the annular groove 39. The first connecting plate 36 is fixedly installed on the sleeve rod 35. The second connecting plate 37 is rotatably connected to the end of the first connecting plate 36 away from the sleeve rod 35 through a rotating shaft. One side of the support plate 41 is rotatably connected to the end of the second connecting plate 37 away from the first connecting plate 36 through a rotating shaft.

[0039] like Figure 7 , Figure 8 As shown, the drive motor 32 of the orientation adjustment mechanism 3 rotates, causing the threaded rod 33 to rotate. The rotation of the threaded rod 33 causes the moving block 34 to move up and down within the strip-shaped opening 38. The up and down movement of the moving block 34 causes the sleeve rod 35 to move up and down on the hollow column 31. The up and down movement of the sleeve rod 35 causes the first connecting plate 36 and the second connecting plate 37 to move up and down. The moving support plate 41 is moved to a preset position above the patient's face. The movement of the support plate 41 causes the first connecting plate 36 and the second connecting plate 37 to move accordingly. The up and down movement of the second connecting plate 37 causes the support plate 41 to move up and down, so that the breathing mask 412 of the magnetic quick-release assembly on the support plate 41 fits the patient's face. At this time, the downward movement distance can be adjusted according to the fit of the patient's face, so that the breathing mask 412 fits the patient's face tightly, reducing oxygen leakage from the gap between the mask and the face, ensuring effective ventilation to maintain the patient's oxygen saturation, and reducing the operation of medical staff.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anaesthetic airway assisted management device comprising a base (1), characterised in that, The base (1) is provided with two height adjustment mechanisms (2) for adjusting the height of the neck and head, one end of the base (1) is provided with an orientation adjustment mechanism (3) for quickly adjusting the height and plane orientation of the face shield, and the output end of the orientation adjustment mechanism (3) is provided with an elastic fitting mechanism (4) for elastically fitting the face of the patient. The elastic fitting mechanism (4) comprises an elastic pressing assembly and a magnetic quick-release assembly, the elastic pressing assembly is installed at the output end of the orientation adjustment mechanism (3), and the magnetic quick-release assembly is installed on the side of the elastic pressing assembly away from the output end of the orientation adjustment mechanism (3).

2. The anaesthesia airway adjunct management device of claim 1, wherein, The elastic pressing assembly comprises a sliding assembly and an elastic assembly, the sliding assembly is installed at the output end of the orientation adjustment mechanism (3), and the elastic assembly is installed on the sliding assembly.

3. The anaesthetic airway adjunct management device of claim 2, wherein, The sliding assembly comprises a support plate (41), a linear bearing (42), a cylindrical shaft (43) and a limiting ring (44), the support plate (41) is installed at the output end of the orientation adjustment mechanism (3), a plurality of linear bearings (42) are fixedly installed on the support plate (41), the cylindrical shaft (43) is slidably connected to the linear bearing (42), and the limiting ring (44) is fixedly installed on the upper side of the cylindrical shaft (43).

4. The anaesthetic airway adjunct management device of claim 3, wherein, The elastic assembly comprises a fixed block (45) and a spring (46), the fixed block (45) is fixedly installed at one end of the cylindrical shaft (43) away from the linear bearing (42), the spring (46) is sleeved on the cylindrical shaft (43), one end of the spring (46) is close to the fixed block (45), and the other end of the spring (46) is close to the linear bearing (42).

5. The anaesthetic airway adjunct management device of claim 4, wherein, The magnetic quick-release assembly comprises a connecting assembly and a face shield assembly, the connecting assembly is installed at one end of the cylindrical shaft (43) away from the fixed block (45), and the face shield assembly is installed on the connecting assembly.

6. The anaesthetic airway adjunct management device of claim 5, wherein, The connecting assembly comprises an abutting block (47) and a magnet (48), the abutting block (47) is fixedly installed at one end of the cylindrical shaft (43) away from the fixed block (45), a rectangular slot (49) is formed in one side of the abutting block (47), and the magnet (48) is fixedly installed in the rectangular slot (49).

7. The anaesthetic airway adjunct management device of claim 6, wherein, The face shield assembly comprises a magnetic attraction sheet (410), an extension block (411) and a breathing face shield (412), the magnetic attraction sheet (410) is magnetically attracted to the magnet (48) in the rectangular slot (49), the extension block (411) is fixedly installed on the magnetic attraction sheet (410), and the breathing face shield (412) is fixedly installed on the extension block (411).

8. The anesthetic airway adjunct management device of claim 1, wherein, The height adjusting mechanism (2) comprises a driving mechanism and a rotating mechanism, the driving mechanism is installed on the base (1), the rotating mechanism is installed on the base (1), the driving mechanism comprises guide rails (21), sliding blocks (22), cross plates (23), guide wheels (24) and electric telescopic rods (25), two guide rails (21) are fixedly installed on the left and right sides of the base (1), the sliding blocks (22) are slidably connected to the guide rails (21), the cross plates (23) are fixedly installed on the sliding blocks (22), and the cross plates (23) are rotatably connected with the guide wheels (24) through rotating shafts on the left and right sides.

9. The anesthetic airway adjunct management device of claim 1, wherein, The azimuth adjusting mechanism (3) comprises a hollow column (31), a driving motor (32), a threaded rod (33), a moving block (34), a sleeve rod (35), a first connecting plate (36) and a second connecting plate (37), the hollow column (31) is fixedly installed on one side of the base (1), two strip-shaped holes (38) are formed in the hollow column (31), the driving motor (32) is fixedly installed on one side of the hollow column (31) located on the base (1), one end (33) of the threaded rod is fixedly installed on the output shaft of the driving motor (32), the other end (33) of the threaded rod is rotatably connected to the hollow column (31), the moving block (34) is slidably connected to the two strip-shaped holes (38) at two ends, the moving block (34) is screw-connected to the threaded rod (33) in the middle, the sleeve rod (35) is slidably connected to the hollow column (31), the sleeve rod (35) is provided with an annular slot (39) in the middle, one end of the moving block (34) penetrating through the strip-shaped hole (38) is located in the annular slot (39) and slides in the annular slot (39), the first connecting plate (36) is fixedly installed on the sleeve rod (35), the second connecting plate (37) is rotatably connected to one end of the first connecting plate (36) away from the sleeve rod (35) through a rotating shaft, and one side of the supporting plate (41) is rotatably connected to one end of the second connecting plate (37) away from the first connecting plate (36) through a rotating shaft.

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