Miniature humidity-control constant-humidity lip protector and automatic adjusting device thereof

Abstract

The invention belongs to the technical field of medical nursing, particularly relates to a miniature humidity-control constant-humidity lip protector and an automatic adjusting device thereof, and provides the following scheme aiming at the defect that the operation is troublesome when the lips of a patient are wetted manually in the prior art: the lip protector comprises two lip blocking strips which are arc-shaped hollow box bodies; the lip protection device comprises two lip blocking strips, a cushion strip is fixedly installed on each lip blocking strip, a plurality of water outlet holes are formed in each lip blocking strip at equal intervals, the lip protection device further comprises a positioning mechanism, the positioning mechanism is connected with the two lip blocking strips, and the positioning mechanism is used for adjusting the distance between the two lip blocking strips. And then water can be discharged through a plurality of corresponding water outlet holes to moisten the lips of the patient, so that the lips of the patient can be automatically moistened in actual use, and the labor intensity of nursing personnel can be reduced.

Description

Technical Field

[0001] The invention relates to the technical field of medical care, in particular to a micro humidity-controlled constant-humidity lip protector and an automatic adjustment device thereof. Background Art

[0002] Coma is a pathological state in which the brain function is extremely suppressed, resulting in loss of consciousness and disappearance of voluntary movements, as well as no response to stimulation or abnormal reflex activity. It should be noted that coma is different from drowsiness and lethargy. Coma is one of the common symptoms in medical emergencies, accounting for about 3% to 5% of the total number of emergency patients, with a mortality rate of up to 20%, involving knowledge from multiple professions and disciplines. At present, when a comatose patient lies flat on the bed, his mouth tends to open wider, which can easily cause the patient's lips to become chapped, requiring nursing staff to moisten the lips with cotton swabs dipped in water regularly. However, this requires nursing staff to frequently moisten the patient's lips, which is quite troublesome, so we propose a micro humidity-controlled constant humidity lip protector and its automatic adjustment device to solve the above-mentioned problems. Summary of the invention

[0003] The purpose of the present invention is to solve the disadvantage of the prior art that the patient's lips are moistened manually, which is troublesome, and to propose a micro humidity-controlled constant humidity lip protector and an automatic adjustment device thereof.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A micro humidity control constant humidity lip protector comprises two lip bars, the lip bars are arc-shaped hollow boxes, a pad is fixedly mounted on the lip bars, and a plurality of water outlet holes are opened on the lip bars at equal intervals. The lip protector also comprises:

[0006] A positioning mechanism, the positioning mechanism is connected to the two lip guard strips respectively, and the positioning mechanism is used to adjust the distance between the two lip guard strips to support the upper and lower lips of the patient;

[0007] A diversion mechanism, the diversion mechanism is connected to the two lip barrier strips respectively, and the diversion mechanism is used to disperse and transport water to the two lip barrier strips, so that the water can flow out from the corresponding multiple water outlet holes to moisten the patient's lips;

[0008] The connecting mechanism is connected to the diversion mechanism, and the connecting mechanism is used to connect to an external automatic regulating device.

[0009] In a possible design, the positioning mechanism includes a first mounting bar and a second mounting bar, the first mounting bar and the second mounting bar are respectively fixedly mounted on the two lip bars, two brackets are symmetrically fixedly mounted on one side of the first mounting bar, a slide bar is slidably connected in the bracket, the top of the slide bar extends to the top of the bracket, one side of the two slide bars is fixedly connected to one side of the second mounting bar, the same fixing plate is fixedly mounted on the two slide bars, a plug rod is slidably connected through the fixing plate, a T-bar is fixedly mounted on one side of the first mounting bar, two ends of the T-bar are respectively fixedly connected to the two brackets, a plurality of insertion holes are equally spaced on the T-bar, the plug rods are movably clamped with the plurality of insertion holes, a tension spring located above the fixing plate is sleeved on the plug rod, and the top and bottom ends of the tension spring are respectively fixedly connected to the top of the plug rod and the top of the fixing plate.

[0010] In one possible design, the diversion mechanism includes a diversion box, on the bottom inner wall of which a plurality of connecting hoses are symmetrically fixedly installed, and the bottom ends of the plurality of connecting hoses on the same side extend into the same lip strip and are fixedly connected to the inner wall of one side of the lip strip.

[0011] In one possible design, the connecting mechanism includes a butt joint tube that passes through the top inner wall of the diverter box and is fixedly connected to the top inner wall of the diverter box. A plurality of clips are fixedly installed at equal intervals on the top of the diverter box, and the same retaining ring is fixedly installed on the plurality of clips.

[0012] An automatic adjustment device is applied to a micro humidity control constant humidity lip protector as described above, comprising a water tank, a hook is rotatably connected to the top of the water tank, a delivery pump is fixedly installed at the bottom of the water tank, and a water suction end of the delivery pump extends into the water tank and is fixedly connected to the bottom inner wall of the water tank. The automatic adjustment device also includes:

[0013] The conveying mechanism is connected to the bottom of the water tank, the water outlet of the conveying pump is connected to the conveying mechanism, and the bottom end of the conveying mechanism is connected to the butt joint;

[0014] The regulating mechanism is installed on the conveying mechanism, and the regulating mechanism is used to adjust the water flow size in the conveying mechanism.

[0015] In a possible design, a mounting ring is fixedly installed in the water tank, a plurality of electric heating rods are fixedly installed at equal intervals on the top of the mounting ring, and the top ends of the electric heating rods are fixedly connected to the top inner wall of the water tank.

[0016] In a possible design, the conveying mechanism includes a plurality of mounting rods fixedly installed at equal intervals on the bottom of the water tank, the bottom ends of the plurality of mounting rods are fixedly connected to the same regulating box, a conveying hose is fixedly installed on the bottom inner wall of the regulating box, the bottom end of the conveying hose extends to the bottom of the regulating box and is fixedly installed with a card cover, the card cover is clamped with the docking tube, a conical ring is fixedly sleeved on the card cover, and the conical ring is respectively clamped with a plurality of clamping strips, the regulating mechanism is installed on the regulating box, and the bottom of the regulating mechanism extends into the conveying hose and contacts with the inner wall of the conveying hose.

[0017] In a possible design, the adjustment mechanism includes an adjustment cover slidably connected to the conveying hose, flow holes are opened on the inner walls on both sides of the adjustment cover, the top of the adjustment cover extends into the adjustment box and is fixedly installed with a connecting plate, a moving component is connected to one side of the top of the connecting plate, the top of the moving component passes through the top inner wall of the adjustment box and extends to the top of the adjustment box, and the moving component is connected to one side of the adjustment box.

[0018] In a possible design, the moving component includes a screw rod fixedly mounted on one side of the top of the connecting plate, a rotating cover is rotatably connected to the inner wall of one side of the top of the adjusting box, a nut is fixedly mounted on the bottom of the rotating cover, the screw rod penetrates the nut and is threadedly connected to the nut, a driving motor is fixedly mounted on the top of one side of the adjusting box, a driving gear is fixedly mounted on the output shaft of the driving motor, a driven gear is fixedly sleeved on the rotating cover and is located above the adjusting box, and the driving gear is meshed with the driven gear.

[0019] In the present application, firstly, two lip barrier strips are placed in the patient's mouth, and then the two lip barrier strips are pulled to make the lip barrier strips contact with the patient's upper and lower lips respectively. After the spacing between the two lip barrier strips is adjusted, the insertion rod can be released, and the tension spring in a stressed state can drive the insertion rod to move downward and be inserted into the corresponding insertion hole. In this way, the spacing between the two lip barrier strips can be adjusted, and the two lip barrier strips can be positioned. Then the card cover and the docking tube can be plugged in. At this time, multiple card strips and conical rings can be clamped to ensure a stable connection between the docking tube and the card cover. Then, clean water is added, and multiple electric heating rods are energized to heat the water. In this way, the water temperature for moistening the patient's lips can be in a suitable state, so as not to cause discomfort to the patient. The water in the water tank can be pumped out by starting the delivery pump. Then It can be transported to the regulating box, and the water entering the regulating box can be transported to the diversion box through the transport hose and the docking pipe. After the water is transported to the diversion box, the water can be transported to the lip guard strip through the connecting hose, and then flow out through multiple water outlets to moisten the patient's lips. The driving motor is started to drive the active gear to rotate. At this time, under the meshing transmission action with the driven gear, the rotating cover can be driven to rotate, that is, under the threaded transmission action with the screw, the connecting plate can be driven to move longitudinally, so that the height of the adjusting cover can be adjusted. When the adjusting cover moves upward, the connecting area between the two flow holes and the regulating box can be expanded, so that the water flow rate can be increased. When the adjusting cover moves downward, the connecting area between the two flow holes and the regulating box can be reduced, so the water flow rate can be reduced.

[0020] In the present invention, the micro humidity control constant humidity lip protector can realize the sliding connection of the two lip bars by utilizing the sliding connection of the bracket and the corresponding slide bar through the positioning mechanism, and after the spacing between the two lip bars is adjusted, the insertion rod can be released, and the tension spring in the stressed state can drive the insertion rod to move downward and be inserted into the corresponding insertion hole, so that the spacing between the two lip bars can be adjusted;

[0021] In the present invention, the micro humidity-controlled constant-humidity lip protector can deliver water to the diversion box through the diversion mechanism. At this time, the water can be delivered to the lip barrier strip through the connecting hose, and then flow out through multiple water outlets to moisten the patient's lips.

[0022] In the present invention, the micro humidity control constant humidity lip protector can connect the automatic adjustment device to the docking tube through the connection mechanism, so that the multiple clamping strips can be clamped with the automatic adjustment device, so that water can be transported to the diversion box;

[0023] In the present invention, the automatic regulating device can pump out water from the water tank by starting the conveying pump through the conveying mechanism, and then convey the water to the regulating box. The water entering the regulating box can be conveyed to the diversion box through the conveying hose and the butt joint, so that the water can be conveyed;

[0024] In the present invention, the automatic regulating device can drive the connecting plate to move longitudinally by starting the moving assembly through the regulating mechanism, thereby driving the regulating cover to move longitudinally. When the regulating cover moves upward, the communicating area between the two flow holes and the regulating box can be expanded, thereby increasing the water flow rate. When the regulating cover moves downward, the communicating area between the two flow holes and the regulating box can be reduced, thereby reducing the water flow rate.

[0025] The present invention can support the upper and lower lips of the patient by arranging two lip guard strips, and then can discharge water through the corresponding multiple water outlet holes to moisten the patient's lips. Therefore, in actual use, the patient's lips can be automatically moistened, thereby reducing the labor intensity of nursing staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A three-dimensional schematic diagram of the overall structure of a micro humidity-controlled constant-humidity lip protector and its automatic adjustment device proposed by the present invention;

[0027] Figure 2 A three-dimensional schematic diagram of a shunt box and two lip guard strip connection structures of a micro humidity control constant humidity lip guard proposed by the present invention;

[0028] Figure 3 A three-dimensional schematic diagram of the connection structure of two lip bars of a micro humidity-controlled constant-humidity lip protector proposed by the present invention;

[0029] Figure 4 A three-dimensional schematic diagram of a top view of a water tank and a regulating box connection structure of an automatic regulating device proposed by the present invention;

[0030] Figure 5 A three-dimensional schematic diagram of a water tank, a plurality of mounting rods, a delivery pump and a regulating box connection structure of an automatic regulating device proposed by the present invention;

[0031] Figure 6 A three-dimensional schematic diagram of the cross-sectional structure of an adjustment box of an automatic adjustment device proposed by the present invention;

[0032] Figure 7 A three-dimensional schematic diagram of the cross-sectional structure of a water tank of an automatic regulating device proposed by the present invention;

[0033] Figure 8 A three-dimensional schematic diagram of the connection structure of a delivery hose, a connecting plate and an adjustment cover of an automatic adjustment device proposed by the present invention.

[0034] In the figure: 1, lip strip; 2, pad strip; 3, water outlet; 4, first mounting strip; 41, second mounting strip; 5, bracket; 6, slide strip; 7, fixing plate; 8, plug rod; 9, tension spring; 10, T-bar; 11, jack; 12, connecting hose; 13, diverter box; 14, butt pipe; 15, card cover; 16, conical ring; 17, card strip; 18, retaining ring; 19, delivery hose; 20, regulating box; 21, mounting rod; 22, water tank; 23, hook; 24, delivery pump; 25, regulating cover; 26, flow hole; 27, connecting plate; 28, screw; 29, rotating cover; 30, nut; 31, mounting ring; 32, electric heating rod; 33, driving motor; 34, driving gear; 35, driven gear. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1: Reference Figure 1-3 A lip protector is mainly composed of two lip guard strips 1, a cushion strip 2, a water outlet 3, a positioning mechanism, a diversion mechanism and a connecting mechanism. The lip guard strip 1 is an arc-shaped hollow box body, on which the cushion strip 2 is fixedly installed, and a plurality of water outlet holes 3 are arranged at equal intervals.

[0037] The design of the positioning mechanism includes a first mounting bar 4 and a second mounting bar 41, which are fixedly mounted on the two lip bars 1, respectively. Two brackets 5 are symmetrically fixedly mounted on one side of the first mounting bar 4, and a slide bar 6 is slidably connected inside the bracket 5. The top of the slide bar 6 extends to the top of the bracket 5, and one side of the two slide bars 6 is fixedly connected to one side of the second mounting bar 41. In order to maintain the stability of the slide bar 6, a sliding connecting rod 8 is passed through the fixed plate 7, and at the same time, a T-shaped rod 10 is fixedly mounted on one side of the first mounting bar 4, and the two ends of the T-shaped rod 10 are respectively fixedly connected to the two brackets 5, and a plurality of sockets 11 are provided on the T-shaped rod 10 at equal intervals. The plug rod 8 is movably mounted with the plurality of sockets 11, and is sleeved with a tension spring 9 located above the fixed plate 7, and the top and bottom ends of the tension spring 9 are respectively fixedly connected to the top of the plug rod 8 and the top of the fixed plate 7. When adjusting the distance between the two lip bars 1, the slide bar 6 can be slid, and after the adjustment is completed, the insertion rod 8 is released, and the elastic force of the tension spring 9 causes the insertion rod 8 to be inserted into the corresponding insertion hole 11 to complete the positioning.

[0038] The diversion mechanism includes a diversion box 13, on the bottom inner wall of which a plurality of connecting hoses 12 are symmetrically fixedly installed, and the bottom ends of the connecting hoses 12 extend into the corresponding lip barrier strips 1 and are fixedly connected to one side inner wall of the lip barrier strips 1. When water enters the diversion box 13, it flows into the lip barrier strips 1 through the connecting hoses 12 and then flows out through the water outlet holes 3, achieving the effect of moistening the lips.

[0039] The present application can be used in the field of medical care technology, and can also be used in other fields applicable to the present application.

[0040] Example 2: Reference Figure 2 , improved on the basis of Example 1: A miniature humidity-controlled constant-humidity lip protector and its automatic adjustment device, belonging to the field of medical care technology, in the design of the connection mechanism, a butt-joint pipe 14 that penetrates the top inner wall of the shunt box 13 and is fixedly connected to the top inner wall of the shunt box 13 is used for external automatic adjustment device. A plurality of clamping strips 17 are fixedly installed at equal intervals on the top of the shunt box 13, and a retaining ring 18 is fixedly installed on the clamping strip 17 to facilitate connection with the automatic adjustment device.

[0041] Example 3: Reference Figure 4-8 An automatic adjustment device is used in conjunction with the above lip protector, comprising a water tank 22, a hook 23, a delivery pump 24, a delivery mechanism and an adjustment mechanism. The top of the water tank 22 is rotatably connected to the hook 23, and the delivery pump 24 is fixedly installed at the bottom, and the water suction end of the delivery pump 24 extends into the water tank 22. The automatic adjustment device also includes a delivery mechanism and an adjustment mechanism.

[0042] The conveying mechanism includes a plurality of mounting rods 21 fixedly mounted at the bottom of the water tank 22 at equal intervals, the bottom ends of the mounting rods 21 are fixedly connected to the regulating box 20, a conveying hose 19 is fixedly mounted on the bottom inner wall of the regulating box 20, the bottom end of the conveying hose 19 extends to the bottom of the regulating box 20 and is fixedly mounted with a card cover 15, the card cover 15 is clamped with the butt pipe 14, a conical ring 16 is fixedly sleeved on the card cover 15, and the conical ring 16 is clamped with a plurality of clamping strips 17. The conveying pump 24 is started to pump out the water in the water tank 22, and then convey it to the regulating box 20, and enter the diversion box 13 through the conveying hose 19 and the butt pipe 14.

[0043] The regulating mechanism is installed on the regulating box 20, and its bottom extends into the conveying hose 19 and contacts the inner wall of the conveying hose 19. The regulating mechanism includes an regulating cover 25 slidably connected in the conveying hose 19, and flow holes 26 are provided on the inner walls on both sides of the regulating cover 25. The top of the regulating cover 25 extends into the regulating box 20 and is fixedly installed with a connecting plate 27. The top side of the connecting plate 27 is connected to a moving component, and the top of the moving component penetrates the top inner wall of the regulating box 20 and extends to the top of the regulating box 20, and is connected to one side of the regulating box 20. The moving component includes a screw 28 fixedly installed on one side of the top of the connecting plate 27, and a rotating cover 29 is rotatably connected to the inner wall of the top side of the regulating box 20. A nut 30 is fixedly installed at the bottom of the rotating cover 29, and the screw 28 penetrates the nut 30 and is threadedly connected with the nut 30. A driving motor 33 is fixedly installed on the top of one side of the regulating box 20, a driving gear 34 is fixedly installed on the output shaft of the driving motor 33, a driven gear 35 located above the regulating box 20 is fixedly sleeved on the rotating cover 29, and the driving gear 34 meshes with the driven gear 35. The driving motor 33 drives the driving gear 34 to rotate, and the driven gear 35 meshes with the rotating cover 29, and the connecting plate 27 is driven to move longitudinally under the threaded transmission of the nut 30 and the screw rod 28, so as to adjust the height of the regulating cover 25 and achieve the purpose of adjusting the water flow.

[0044] In order to keep the water temperature suitable, a mounting ring 31 is fixedly installed in the water tank 22, and a plurality of electric heating rods 32 are fixedly installed at equal intervals on the top of the mounting ring 31, and the tops of the electric heating rods 32 are fixedly connected to the top inner wall of the water tank 22. When it is necessary to heat the water, the plurality of electric heating rods 32 can be energized to achieve the desired effect.

[0045] However, as is well known to those skilled in the art, the working principles and wiring methods of the delivery pump 24, the electric heating rod 32 and the drive motor 33 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any optional selections according to their needs or convenience.

[0046] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A micro humidity control constant humidity lip protector, comprising two lip bars (1), the lip bars (1) being arc-shaped hollow boxes, a pad bar (2) being fixedly mounted on the lip bars (1), and a plurality of water outlet holes (3) being evenly spaced on the lip bars (1), characterized in that: Also includes: A positioning mechanism, the positioning mechanism being connected to the two lip barrier strips (1) respectively, and the positioning mechanism being used to adjust the distance between the two lip barrier strips (1) so as to support the upper and lower lips of the patient; A flow diversion mechanism, the flow diversion mechanism is connected to the two lip barrier strips (1) respectively, and is used to disperse and transport water into the two lip barrier strips (1), so that the water can flow out from the corresponding multiple water outlet holes (3) to moisten the patient's lips; The connecting mechanism is connected to the diversion mechanism, and the connecting mechanism is used to connect to an external automatic regulating device.

2. A micro humidity control constant humidity lip protector according to claim 1, characterized in that: The positioning mechanism comprises a first mounting bar (4) and a second mounting bar (41), the first mounting bar (4) and the second mounting bar (41) are respectively fixedly mounted on the two lip bars (1), one side of the first mounting bar (4) is symmetrically fixedly mounted with two brackets (5), a sliding bar (6) is slidably connected inside the bracket (5), the top of the sliding bar (6) extends to the top of the bracket (5), one side of the two sliding bars (6) is fixedly connected to one side of the second mounting bar (41), the two sliding bars (6) are fixedly mounted with the same fixing plate (7), and the fixing plate (7) is fixedly mounted on the two sliding bars (6). A plug rod (8) is slidably connected to the fixed plate (7), a T-shaped rod (10) is fixedly installed on one side of the first mounting strip (4), two ends of the T-shaped rod (10) are respectively fixedly connected to the two brackets (5), a plurality of insertion holes (11) are provided at equal intervals on the T-shaped rod (10), the plug rod (8) is movably engaged with the plurality of insertion holes (11), a tension spring (9) located above the fixed plate (7) is sleeved on the plug rod (8), and the top and bottom ends of the tension spring (9) are respectively fixedly connected to the top of the plug rod (8) and the top of the fixed plate (7).

3. A micro humidity control constant humidity lip protector according to claim 1, characterized in that: The flow diversion mechanism comprises a flow diversion box (13), on the bottom inner wall of which a plurality of connecting hoses (12) are symmetrically fixedly mounted, and the bottom ends of the plurality of connecting hoses (12) located on the same side all extend into the same retaining lip strip (1) and are fixedly connected to the inner wall of one side of the retaining lip strip (1).

4. The micro humidity control constant humidity lip protector according to claim 1, characterized in that: The connection mechanism comprises a butt joint pipe (14) penetrating the top inner wall of the diverter box (13) and fixedly connected to the top inner wall of the diverter box (13); a plurality of clamping strips (17) are fixedly mounted at equal intervals on the top of the diverter box (13); and a same retaining ring (18) is fixedly mounted on the plurality of clamping strips (17).

5. An automatic adjustment device, applied to a miniature humidity control constant humidity lip protector according to any one of claims 1 to 4, comprising a water tank (22), the top of the water tank (22) is rotatably connected to a hook (23), the bottom of the water tank (22) is fixedly installed with a delivery pump (24), the water suction end of the delivery pump (24) extends into the water tank (22) and is fixedly connected to the bottom inner wall of the water tank (22), characterized in that: The automatic adjustment device also includes: A conveying mechanism, the conveying mechanism is connected to the bottom of the water tank (22), the water outlet end of the conveying pump (24) is connected to the conveying mechanism, and the bottom end of the conveying mechanism is connected to the docking pipe (14); The regulating mechanism is installed on the conveying mechanism, and is used to adjust the water flow size in the conveying mechanism.

6. An automatic adjustment device according to claim 5, characterized in that: A mounting ring (31) is fixedly installed in the water tank (22), a plurality of electric heating rods (32) are fixedly installed at equal intervals on the top of the mounting ring (31), and the top ends of the electric heating rods (32) are fixedly connected to the top inner wall of the water tank (22).

7. An automatic adjustment device according to claim 5, characterized in that: The conveying mechanism comprises a plurality of mounting rods (21) fixedly mounted at equal intervals on the bottom of a water tank (22); the bottom ends of the plurality of mounting rods (21) are fixedly connected to the same regulating box (20); a conveying hose (19) is fixedly mounted on the inner wall of the bottom of the regulating box (20); the bottom end of the conveying hose (19) extends to the bottom of the regulating box (20) and is fixedly mounted with a card cover (15); the card cover (15) is card-engaged with a butt-jointed pipe (14); a conical ring (16) is fixedly sleeved on the card cover (15); the conical ring (16) is card-engaged with a plurality of card strips (17) respectively; the regulating mechanism is mounted on the regulating box (20); the bottom of the regulating mechanism extends into the conveying hose (19) and contacts the inner wall of the conveying hose (19).

8. An automatic adjustment device according to claim 7, characterized in that: The regulating mechanism comprises an regulating cover (25) slidably connected in the conveying hose (19), flow holes (26) are provided on the inner walls on both sides of the regulating cover (25), the top of the regulating cover (25) extends into the regulating box (20) and is fixedly mounted with a connecting plate (27), a moving component is connected to one side of the top of the connecting plate (27), the top of the moving component passes through the top inner wall of the regulating box (20) and extends to the top of the regulating box (20), and the moving component is connected to one side of the regulating box (20).

9. An automatic adjustment device according to claim 8, characterized in that: The moving assembly comprises a screw rod (28) fixedly mounted on one side of the top of the connecting plate (27); a rotating cover (29) is rotatably connected to the inner wall of one side of the top of the adjusting box (20); a nut (30) is fixedly mounted on the bottom of the rotating cover (29); the screw rod (28) passes through the nut (30) and is threadedly connected to the nut (30); a driving motor (33) is fixedly mounted on the top of one side of the adjusting box (20); a driving gear (34) is fixedly mounted on the output shaft of the driving motor (33); a driven gear (35) located above the adjusting box (20) is fixedly sleeved on the rotating cover (29); the driving gear (34) is meshed with the driven gear (35).

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