Postoperative awakening device for anesthesiology department

Abstract

The invention discloses an anesthesiology department postoperative awakening device which comprises a seat assembly and further comprises two awakening assemblies, the two awakening assemblies are located on the two sides of the seat assembly respectively, each awakening assembly comprises a placing plate, a stimulation block and a matching block, the placing plates are installed on the seat assembly and used for placing the legs of a patient, the stimulation blocks are matched with the matching blocks, and the matching blocks are matched with the placing plates. The stimulation block is arranged on the placing plate and can operably do reciprocating motion in the horizontal direction and the longitudinal direction so as to apply force to stimulate the legs of a patient, and the matching block is in transmission connection with the stimulation block through a transmission assembly. The stimulation block and the matching block can synchronously reciprocate up and down to stimulate the legs of a patient, and meanwhile, the stimulation block can horizontally reciprocate to horizontally scrape the legs, so that the stimulation effect on the legs of the patient is improved, and the patient is conveniently awakened.

Description

Technical Field

[0001] The present invention relates to the technical field of medical equipment, and in particular to a postoperative awakening device for anesthesiology. Background Art

[0002] Publication number CN115970124A discloses a post-operative awakening device for anesthesiology, comprising a chair, a limit frame assembly, a backrest cushion, and a seat cushion. By providing a receiving plate, a second gear, and a gear slot, the device effectively awakens the patient's legs. After lower limb anesthesia surgery, the patient is moved to sit on top of the chair assembly, with their feet positioned on top of the receiving plate and their legs clamped to one side of a fixed block. A fixed rope secures the patient's legs, and the patient manually controls a controller, which controls the motor's speed. The motor then drives the sliding block, receiving plate, and fixed block to slide within the sliding slot.

[0003] Although the device increases the stimulation of the patient's calves during the swinging process, thereby achieving the effect of awakening the patient's legs, it cannot stimulate the patient well and cannot adjust the stimulation effect.

[0004] To this end, we propose a postoperative awakening device for anesthesiology. Summary of the Invention

[0005] The specific technical solutions are as follows:

[0006] A postoperative awakening device for anesthesiology comprises a seat assembly and two awakening assemblies, the two awakening assemblies being located on either side of the seat assembly, each of the awakening assemblies comprising:

[0007] A placement board, which is mounted on the seat assembly and is used for placing the patient's legs;

[0008] a stimulation block, the stimulation block being arranged on the placement plate and operable to perform horizontal and longitudinal reciprocating motions to apply force stimulation to the patient's legs;

[0009] The mating block is connected to the stimulation block through a transmission assembly. When the stimulation block makes horizontal and longitudinal reciprocating motions, the stimulation block drives the mating block to rotate and make synchronous longitudinal reciprocating motions through the transmission assembly, so as to synchronously apply force stimulation to the patient's legs.

[0010] As a further improvement and optimization of this solution, it also includes a driving mechanism, which is transmission-connected to the stimulation block and is used to drive the stimulation block to perform reciprocating motion in the longitudinal and horizontal directions.

[0011] As a further improvement and optimization of this solution, a plate groove passes through the placement plate, and the stimulation block and the matching block are arranged in the plate groove. When the stimulation block and the matching block move back and forth longitudinally, the stimulation block and the matching block can extend out of the plate groove or retract into the plate groove.

[0012] As a further improvement and optimization of this solution, the driving mechanism includes: a first driving component and a second driving component that are transmission-connected to the stimulation block, the first driving component is used to drive the stimulation block to reciprocate longitudinally, and the second driving component is used to drive the stimulation block to reciprocate horizontally.

[0013] As a further improvement and optimization of this solution, the first drive component includes:

[0014] a drive ring operable to rotate;

[0015] a lifting column connected to the stimulation block;

[0016] The transmission component is transmission-connected between the drive ring and the lifting column. When the drive ring is driven, the drive ring drives the lifting column to reciprocate longitudinally through the transmission component.

[0017] As a further improvement and optimization of this solution, the transmission component includes:

[0018] A drive frame, the drive frame being mounted on the drive ring and having a first drive surface and a second drive surface, wherein the first drive surface and the second drive surface are arranged at an angle;

[0019] The pressure column is installed on the lifting column. When the driving ring rotates, the pressure column can press and cooperate with the outer circumferential surface, the first driving surface and the second driving surface of the driving ring in sequence to make the lifting column move back and forth longitudinally.

[0020] As a further improvement and optimization of this solution, the angle between the first driving surface and the second driving surface can be adjusted.

[0021] As a further improvement and optimization of this solution, the side coaxial ring of the driving frame is provided with an adjustment groove;

[0022] The drive frame includes:

[0023] a first rod body, one end of which is rotatably mounted in the adjustment slot, and a first driving surface is provided on the first rod body;

[0024] a second rod, one end of the second rod being hinged to the other end of the first rod, and a second driving surface being provided on the second rod;

[0025] An adjusting block, the adjusting block is slidably arranged in the adjusting groove, the other end of the second rod body is hinged on the adjusting block, by sliding the adjusting block, the included angle between the first rod body and the second rod body is adjusted, and further the included angle between the first driving surface and the second driving surface is adjusted;

[0026] A locking member, the locking member is used to lock the adjusting block.

[0027] As a further improvement and optimization of this solution, the first driving assembly includes:

[0028] A motor, the motor is installed on the placement plate and is in transmission connection with the driving ring, the lifting column is provided with a sliding groove, the output end of the motor passes through the sliding groove and forms a longitudinal sliding fit with the sliding groove;

[0029] The second driving assembly includes:

[0030] A pressing block, the pressing block is installed on the driving frame, the low-pressure block includes a driving part with a conical structure, when the driving ring rotates, the conical surface of the driving part abuts against the lifting column, so that the lifting column moves horizontally towards the motor;

[0031] An elastic connecting piece, the elastic connecting piece is elastically connected between the motor and the lifting column, when the driving part is separated from the lifting column, the elastic connecting piece drives the lifting column to move horizontally away from the motor.

[0032] As a further improvement and optimization of this solution, the pressing block further includes a shaking part with a cylindrical structure, the shaking part is connected to the driving frame and is located between the first driving surface and the second driving surface, the driving part is connected to the shaking part, when the driving ring rotates, the pressing column can be sequentially in pressing fit with the outer circumferential surface of the driving ring, the first driving surface, the outer circumferential surface of the shaking part and the second driving surface, so that the lifting column moves up and down.

[0033] The positive effects of the above technical solutions compared with the prior art are:

[0034] (1) In the present invention, the stimulating block and the matching block can reciprocate up and down synchronously to stimulate the patient's leg, and at the same time, the stimulating block can reciprocate horizontally to scrape the leg horizontally, increasing the stimulating effect on the patient's leg and facilitating the awakening of the patient.

[0035] (2) In the present invention, while the stimulating block reciprocates horizontally, it can drive the matching block to rotate by itself through the transmission assembly, so that the matching block twists the skin of the leg, increasing the stimulating intensity on the leg.

[0036] (3) In the present invention, when the stimulation block moves horizontally back and forth, the matching block does not move horizontally. Therefore, when the stimulation block moves horizontally toward the matching block, it can clamp and stimulate the skin of the legs, further increasing the stimulation effect on the legs.

[0037] (4) In the present invention, the angle between the first driving surface and the second driving surface can be adjusted, thereby adjusting the rising or falling height of the lifting column, and then adjusting the rising or falling height of the matching block and the stimulation block, thereby achieving an adjustable effect of the longitudinal stimulation intensity.

[0038] (5) In the present invention, the pressure block is provided with a rocking portion, and the resistance column slides from the first driving surface to the outer circumferential surface of the rocking portion, and then slides from the outer circumferential surface of the rocking portion to the second driving surface, so that the lifting column produces an obvious longitudinal rocking effect, further improving the stimulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a schematic structural diagram of a postoperative awakening device for anesthesiology according to the present invention;

[0040] Figure 2 This is a schematic structural diagram of an awakening component of an anesthesiology postoperative awakening device according to the present invention;

[0041] Figure 3 This is a schematic structural diagram of an awakening component of an anesthesiology postoperative awakening device according to the present invention;

[0042] Figure 4 This is a schematic structural diagram of a driving component of a postoperative awakening device for anesthesiology according to the present invention;

[0043] Figure 5 This is a partial exploded schematic diagram of the structure of a driving component of a postoperative awakening device for anesthesiology according to the present invention;

[0044] Figure 6 This is a partial exploded schematic diagram of the structure of an anesthesia postoperative awakening device according to the present invention;

[0045] Figure 7 This is a schematic diagram of a transmission component of an anesthesia postoperative awakening device according to the present invention;

[0046] In the accompanying drawings: 1. Seat assembly; 2. Wake-up assembly; 21. Placing plate; 22. Stimulation block; 23. Fitting block; 24. Driving mechanism; 25. Transmission assembly; 211. Plate groove; 241. Motor; 242. Lifting column; 243. Pressing column; 244. Driving ring; 245. Driving frame; 246. Pressing block; 247. Elastic connecting piece; 248. Supporting block; 249. Supporting rod; 251. Slide bar; 252. Guide column; 253. Sleeve column; 254. First transmission rod; 245. Second transmission rod; 2411. Connecting rod; 2441. Adjusting groove; 2442. Adjusting block; 2443. Locking piece; 2451. First rod body; 2452. Second rod body; 2461. Shaking part; 2462. Driving part; 2451a. First driving surface; 2452a. Second driving surface; 2481. Guide rod. Detailed implementation manners

[0047] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] In the description of the present invention, it should be noted that terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0049] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0050] Figure 1 It is a structural schematic diagram of a postoperative wake-up device for the anesthesiology department of the present invention. Figure 2 It is a structural schematic diagram of the wake-up assembly of a postoperative wake-up device for the anesthesiology department of the present invention. Figure 3This is a schematic diagram of the structure of the awakening component of an anesthesia postoperative awakening device of the present invention. Figure 4 This is a schematic diagram of the structure of a driving component of an anesthesiology postoperative awakening device according to the present invention. Figure 5 This is a partial exploded schematic diagram of the driving component of a postoperative awakening device for anesthesiology according to the present invention. Figure 6 This is a partial exploded schematic diagram of the structure of an anesthesia postoperative awakening device according to the present invention. Figure 7 This is a schematic diagram of a transmission component of an anesthesia postoperative awakening device according to the present invention, as shown in FIG. Figures 1-7 As shown, a preferred embodiment of an anesthesia postoperative awakening device is shown, including a seat assembly 1, and also including: two awakening assemblies 2, the two awakening assemblies 2 are respectively located on both sides of the seat assembly 1, each awakening assembly 2 includes: a placement plate 21, a stimulation block 22 and a matching block 23, the placement plate 21 is installed on the seat assembly 1, and is used to place the patient's legs, the stimulation block 22 is arranged on the placement plate 21, and can be operated to perform horizontal and longitudinal reciprocating motion to apply force stimulation to the patient's legs, the matching block 23 is connected to the stimulation block 22 through a transmission assembly 25, when the stimulation block 22 performs horizontal and longitudinal reciprocating motion, the stimulation block 22 drives the matching block 23 to rotate and synchronously reciprocate longitudinally through the transmission assembly 25, so as to synchronously apply force stimulation to the patient's legs.

[0051] In this embodiment, the stimulation block 22 and the matching block 23 can move back and forth synchronously to stimulate the patient's legs. At the same time, the stimulation block 22 can move back and forth horizontally to scrape the legs horizontally, thereby increasing the stimulation effect on the patient's legs and waking up the patient.

[0052] In this embodiment, while the stimulation block 22 is in horizontal reciprocating motion, the transmission assembly 25 can drive the matching block 23 to rotate, so that the matching block 23 twists the skin of the leg, thereby increasing the stimulation intensity on the leg.

[0053] In this embodiment, when the stimulation block 22 moves back and forth horizontally, the matching block 23 does not move horizontally. Therefore, when the stimulation block 22 moves horizontally close to the matching block 23, it can clamp and stimulate the skin of the legs, further increasing the stimulation effect on the legs.

[0054] Furthermore, as a preferred embodiment, it further includes a driving mechanism 24, which is in transmission connection with the stimulation block 22 and is used to drive the stimulation block 22 to perform reciprocating motion in the longitudinal and horizontal directions.

[0055] Furthermore, as a preferred embodiment, a plate groove 211 is passed through the placement plate 21, and the stimulation block 22 and the matching block 23 are arranged at the plate groove 211. When the stimulation block 22 and the matching block 23 move back and forth longitudinally, the stimulation block 22 and the matching block 23 can extend out of the plate groove 211 or retract into the plate groove 211.

[0056] Further, as a preferred embodiment, the driving mechanism 24 includes: a first driving component and a second driving component that are in transmission connection with the stimulating block 22. The first driving component is used to drive the stimulating block 22 to reciprocate longitudinally, and the second driving component is used to drive the stimulating block 22 to reciprocate horizontally.

[0057] Further, as a preferred embodiment, the first driving component includes a driving ring 244, a lifting column 242, and a transmission member. The driving ring 244 is operably rotatable. The lifting column 242 is connected to the stimulating block 22. The transmission member is in transmission connection between the driving ring 244 and the lifting column 242. When the driving ring 244 is driven, the driving ring 244 drives the lifting column 242 to reciprocate longitudinally through the transmission member.

[0058] Further, as a preferred embodiment, the transmission member includes a driving frame 245 and a pressing column 243. The driving frame 245 is installed on the driving ring 244, and the driving frame 245 has a first driving surface 2451a and a second driving surface 2452a. The first driving surface 2451a and the second driving surface 2452a are arranged at an angle. The pressing column 243 is installed on the lifting column 242. When the driving ring 244 rotates, the pressing column 243 can be in pressing cooperation with the outer circumferential surface, the first driving surface 2451a, and the second driving surface 2452a of the driving ring 244 in sequence, so that the lifting column 242 reciprocates longitudinally. When the pressing column 243 transitions from the outer circumferential surface of the driving ring 244 to the first driving surface 2451a and slides along the first driving surface 2451a in contact, the lifting column 242 is in the rising state. When the pressing column 243 transitions from the first driving surface 2451a to the second driving surface 2452a and slides along the second driving surface 2452a in contact, the lifting column 242 is in the descending state.

[0059] Further, as a preferred embodiment, the angle between the first driving surface 2451a and the second driving surface 2452a is adjustable, so as to adjust the rising or falling height of the lifting column 242, and further adjust the rising or falling height of the matching block 23 and the stimulating block 22, achieving the adjustable effect of the longitudinal stimulation intensity.

[0060] Furthermore, as a preferred embodiment, the side coaxial ring of the driving frame 245 is provided with an adjustment groove 2441; the driving frame 245 includes a first rod 2451, a second rod 2452, an adjustment block 2442 and a locking member 2443, one end of the first rod 2451 is rotatably mounted in the adjustment groove 2441, a first driving surface 2451a is provided on the first rod 2451, and one end of the second rod 2452 is hinged to the other end of the first rod 2451. A second driving surface 2452a is provided on the second rod body 2452, and the adjusting block 2442 is slidably provided in the adjusting slot 2441. The other end of the second rod body 2452 is hinged on the adjusting block 2442. By sliding the adjusting block 2442, the angle between the first rod body 2451 and the second rod body 2452 is adjusted, and then the angle between the first driving surface 2451a and the second driving surface 2452a is adjusted. The locking member 2443 is used to lock the adjusting block 2442.

[0061] Furthermore, as a preferred embodiment, the first drive assembly includes a motor 241, which is mounted on the placement plate 21 and is in transmission connection with the drive ring 244. The lifting column 242 has a slide groove, and the output end of the motor 241 passes through the slide groove and forms a longitudinal sliding fit with the slide groove.

[0062] Furthermore, as a preferred embodiment, the second driving assembly includes: a pressure block 246 and an elastic connecting member 247. The pressure block 246 is installed on the driving frame 245. The low-pressure block includes a driving portion 2462 with a conical structure. When the driving ring 244 rotates, the conical surface of the driving portion 2462 conflicts with the lifting column 242, so that the lifting column 242 moves horizontally toward the motor 241. The elastic connecting member 247 is elastically connected between the motor 241 and the lifting column 242. When the driving portion 2462 is out of contact with the lifting column 242, the elastic connecting member 247 drives the lifting column 242 to move horizontally away from the motor 241.

[0063] Furthermore, as a preferred embodiment, the pressure block 246 also includes a rocking portion 2461 with a cylindrical structure. The rocking portion 2461 is connected to the driving frame 245 and is located between the first driving surface 2451a and the second driving surface 2452a. The driving portion 2462 is connected to the rocking portion 2461. When the driving ring 244 rotates, the pressure column 243 can be pressed and matched with the outer circumferential surface of the driving ring 244, the first driving surface 2451a, the outer circumferential surface of the rocking portion 2461 and the second driving surface 2452a in sequence to make the lifting column 242 rise and fall.

[0064] In this embodiment, the pressure block 246 is provided with a rocking portion 2461. When the resistance column slides from the first driving surface 2451a to the outer circumferential surface of the rocking portion 2461, and then slides from the outer circumferential surface of the rocking portion 2461 to the second driving surface 2452a, the lifting column 242 produces an obvious longitudinal rocking effect, further improving the stimulation effect.

[0065] The present invention further has the following embodiments based on the above:

[0066] More preferably, the bottom of the lifting column 242 has a support block 248, and the top of the support block 248 has at least two guide rods 2481. The lifting column 242 can be longitudinally slidably sleeved on the outside of the two guide rods 2481, and the side of the support block 248 facing away from the motor 241 has a horizontally arranged support rod, and the support rod is in limited contact with the drive ring 244; wherein the elastic connecting member 247 is a tension spring arranged obliquely between the motor 241 and the support block 248.

[0067] More preferably, the output end of the motor 241 is connected to the inner wall of the driving ring 244 through a connecting rod 2411 .

[0068] More preferably, the locking member 2443 is a locking screw, one end of which passes through the second rod body 2452 and is threadedly connected to the adjustment block 2442. The adjustment groove 2441 is a T-slot. By tightening the locking screw, the adjustment block 2442 is tightly pressed against the outer inner wall of the adjustment groove 2441, thereby locking the adjustment block 2442.

[0069] The transmission assembly 25 includes a guide column 252, a sleeve column 253, a slide bar 251, a first transmission bar 254 and a second transmission bar 245. The guide column 252 is mounted on the motor 241. The bottom of the sleeve column 253 can be longitudinally slidably mounted on the top of the guide column 252. One end of the slide bar 251 is connected to the lifting column 242, and the other end can be horizontally slidably mounted on the sleeve column 253. The first transmission bar 254 is a "J"-shaped structure and is connected between the top of the sleeve column 253 and the bottom of the matching block 23. The second transmission rod 245 is an "L"-shaped structure, with one end of the second transmission rod 245 rotatably mounted on the outer wall of the slide rod 251, and the other end rotatably sleeved on the outside of the first transmission rod 254. When the lifting column 242 drives the slide rod 251 to move horizontally, the second transmission rod 245 can drive the first transmission rod 254 to rotate, thereby rotating the matching block 23. When the lifting column 242 drives the slide rod 251 to move longitudinally, the slide rod 251 can drive the sleeve column 253 to slide longitudinally, thereby causing the matching block 23 to move synchronously longitudinally.

[0070] The above are only the preferred embodiments of the present invention, and thus do not limit the implementation and protection scope of the present invention. For those skilled in the art, it should be realized that any equivalent replacement and obvious changes made by using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. An awakening device after anesthesia for the department of anesthesiology, comprising a seat assembly, characterized in that, Further included are: Two wake-up components, which are respectively located on both sides of the seat component. Each wake-up component includes: A placement plate, which is installed on the seat component for placing the patient's legs; A stimulation block, which is arranged on the placement plate and can operably perform reciprocating movements in the horizontal and longitudinal directions to apply a force stimulus to the patient's legs; A mating block, which is drivingly connected to the stimulation block through a transmission component. When the stimulation block performs reciprocating movements in the horizontal and longitudinal directions, the stimulation block drives the mating block to rotate and synchronously perform longitudinal reciprocating movements through the transmission component to apply a synchronous force stimulus to the patient's legs.

2. The postoperative awakening device for the anesthesiology department according to claim 1, wherein A driving mechanism is further included, which is drivingly connected to the stimulation block for driving the stimulation block to perform reciprocating movements in the longitudinal and horizontal directions.

3. The postoperative awakening device for the anesthesiology department according to claim 1, wherein, A plate groove penetrates through the placement plate, and the stimulation block and the mating block are arranged at the plate groove. When the stimulation block and the mating block perform longitudinal reciprocating movements, the stimulation block and the mating block can extend out of the plate groove or retract into the plate groove.

4. The postoperative awakening device for the anesthesiology department according to claim 2, characterized in that, The driving mechanism includes: a first driving component and a second driving component that are drivingly connected to the stimulation block. The first driving component is used to drive the stimulation block to perform longitudinal reciprocating movements, and the second driving component is used to drive the stimulation block to perform reciprocating movements in the horizontal direction.

5. The postoperative awakening device for the anesthesiology department according to claim 4, wherein, The first driving component includes: A driving ring, which can operably rotate; A lifting column, which is connected to the stimulation block; A transmission member, which is drivingly connected between the driving ring and the lifting column. When the driving ring transmits power, the driving ring drives the lifting column to perform longitudinal reciprocating movements through the transmission member.

6. The postoperative awakening device for the anesthesiology department according to claim 5, wherein The transmission member includes: A driving frame, which is installed on the driving ring, and the driving frame has a first driving surface and a second driving surface, and the first driving surface and the second driving surface are arranged at an angle; A pressing column, which is installed on the lifting column. When the driving ring rotates, the pressing column can be successively in pressing fit with the outer circumferential surface, the first driving surface and the second driving surface of the driving ring to make the lifting column perform longitudinal reciprocating movements.

7. The postoperative awakening device for the anesthesiology department according to claim 6, wherein, The included angle between the first driving surface and the second driving surface can be adjusted.

8. The postoperative awakening device for the anesthesiology department according to claim 7, wherein, An adjustment groove is coaxially arranged around the side surface of the driving frame; The driving frame includes: A first rod body, one end of which is rotatably installed in the adjustment groove, and the first driving surface is arranged on the first rod body; A second rod body, one end of which is hinged to the other end of the first rod body, and the second driving surface is arranged on the second rod body; An adjustment block, which is slidably arranged in the adjustment groove, and the other end of the second rod body is hinged to the adjustment block. By sliding the adjustment block, the included angle between the first rod body and the second rod body is adjusted, and further the included angle between the first driving surface and the second driving surface is adjusted; A locking member, which is used to lock the adjustment block.

9. The postoperative awakening device for the anesthesiology department according to claim 6, wherein The first driving component includes: A motor, the motor is installed on the placement plate and is in transmission connection with the driving ring. The lifting column has a sliding groove, and the output end of the motor passes through the sliding groove and forms a longitudinal sliding fit with the sliding groove; The second driving assembly includes: A pressing block, the pressing block is installed on the driving frame. The low-pressure block includes a driving part with a conical structure. When the driving ring rotates, the conical surface of the driving part abuts against the lifting column, so that the lifting column moves horizontally towards the motor; An elastic connecting piece, the elastic connecting piece is elastically connected between the motor and the lifting column. When the driving part is separated from the lifting column, the elastic connecting piece drives the lifting column to move horizontally away from the motor.

10. The postoperative awakening device for the anesthesiology department according to claim 9, characterized in that, The pressing block further includes a shaking part in a cylindrical structure. The shaking part is connected to the driving frame and is located between the first driving surface and the second driving surface. The driving part is connected to the shaking part. When the driving ring rotates, the pressing column can be sequentially in pressing fit with the outer circumferential surface of the driving ring, the first driving surface, the outer circumferential surface of the shaking part and the second driving surface, so that the lifting column moves up and down.

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