A height adjustment device and usage method for a medical suspension tower

Abstract

The present invention discloses a height adjustment device and a usage method for a medical suspension tower. The medical suspension tower includes a box body assembly. The height adjustment device includes a motion assembly, which is connected to the box body assembly and drives the box body assembly to move. The height adjustment device for the medical suspension tower further includes a control assembly for controlling the movement of the motion assembly. The control assembly includes a sound receiver and a voice control circuit board. The motion assembly includes a signal receiver, a linear motor, and a displacement sensor. The signal receiver is fixedly installed on the linear motor and is connected to the voice control circuit board and receives the instructions of the voice control circuit board, so that the motion assembly moves according to the instructions of the voice control circuit board. The voice control circuit board is connected to the displacement sensor and monitors and controls the movement of the motion assembly. The present invention can realize the control of the height of the medical suspension tower through sound and the control assembly, liberate the hands of medical staff, facilitate other operations of medical staff, and improve work efficiency.

Description

Technical Field

[0001] The present invention relates to the field of medical devices, and particularly to a height adjustment device and a usage method for a medical suspension tower. Background Art

[0002] A medical suspension tower is an essential gas supply medical device in a modern hospital operating room, mainly used for the terminal transfer of medical gases such as oxygen supply, suction, compressed air, and nitrogen in the operating room. Existing medical suspension towers are equipped with multiple gas terminals and electrical sockets. When not in use, they are suspended above the head, with a certain head clearance. When in use, the medical suspension tower moves downward, making the box body where the gas terminals and electrical sockets are installed closer to medical staff.

[0003] The existing medical suspension tower adjusts the height of the medical suspension tower by reaching out and pulling down the handle to release the gas spring. Each time the height of the suspension tower is adjusted, it is necessary to pull down the operation handle, which is inconvenient to operate; and the operation handle is at a relatively high height, greatly increasing the operation difficulty and usage risk for people with relatively short heights. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a height adjustment device and a usage method for a medical suspension tower, which can adjust the height of the medical suspension tower through a sound and control component.

[0005] The present invention is achieved through the following technical solutions:

[0006] A height adjustment device for a medical suspension tower, wherein the medical suspension tower includes a box body component, the height adjustment device includes a motion component, the motion component is connected to the box body component and drives the box body component to move, and the height adjustment device for the medical suspension tower further includes a control component for controlling the movement of the motion component; the control component includes a sound receiver, a linear motor, and a voice control circuit board; the motion component includes a signal receiver and a displacement sensor; the signal receiver is fixedly installed on the linear motor and is connected to the voice control circuit board and receives the instructions of the voice control circuit board, so that the motion component moves according to the instructions of the voice control circuit board; the voice control circuit board is connected to the displacement sensor and monitors and controls the movement of the motion component.

[0007] Further, the control component is arranged at the end of the inner cavity of the box body component and further includes a distance sensor, and the distance sensor is connected to the voice control circuit board.

[0008] Further, the sound receiver is arranged in the inner cavity of the box body component, and the number thereof is at least one.

[0009] Further, the motion component includes a linear motor, a connecting part fixedly connected to the top of the house, and a fixing part fixedly connected to the box body component, and one end of the linear motor is connected to the connecting part and the other end is connected to the fixing part.

[0010] Further, one end of the displacement sensor is connected to the connecting part, and the other end is connected to the fixing part, and it is placed parallel to the linear motor to monitor the moving distance of the linear motor.

[0011] Further, the moving assembly further includes a connecting plate, one end of the connecting plate is fixedly connected to the connecting part, and the other end is movably connected to the fixing part.

[0012] Further, the connecting plate is provided with a waist-shaped groove, the fixing part is provided with a movable pin, one end of the movable pin is fixedly connected to the fixing part, and the other end is movably inserted into the waist-shaped groove.

[0013] Further, the box body assembly includes a terminal protection shell, and the terminal protection shell is arranged at the end of the box body assembly and is made of silica gel material.

[0014] On the other hand, the present invention also provides a use method of the height adjustment device for the medical suspension tower, including the following steps:

[0015] Step 1, the sound receiver receives the preset sound signal sent by the staff and feeds back the received sound signal to the sound control circuit board;

[0016] Step 2, the sound control circuit board receives the feedback information from the sound receiver, calculates the feedback information, and then issues a corresponding instruction to the linear motor;

[0017] Step 3, the linear motor moves according to the instruction issued by the sound control circuit board;

[0018] Step 4, the displacement sensor monitors the moving distance of the linear motor in real time and feeds it back to the sound control circuit board. When the linear motor moves to the specified position, the sound control circuit board issues a stop instruction to the linear motor.

[0019] Further, it further includes the following steps:

[0020] The distance between the box body assembly and surrounding objects is monitored in real time through a distance sensor. If the monitored distance is less than the set value, a stop signal is sent to the sound control circuit board.

[0021] Compared with the prior art, the advantages of the present invention are as follows:

[0022] 1. By setting the control component, medical staff can control the descent of the box body assembly only by voice, liberating the hands of medical staff, facilitating other operations of medical staff, and improving work efficiency.

[0023] 2. By setting the displacement sensor, the moving distance of the linear motor can be monitored and controlled in real time, realizing closed-loop control and improving the accuracy of movement.

[0024] 3. By setting up a distance sensor, it is prevented that the box body assembly collides with surrounding objects during the falling process, thus improving the safety during the use of the equipment.

[0025] 4. By setting up a terminal protection case made of silica gel material, the damage caused by the collision between the box body assembly and surrounding objects when the program misjudges or the monitoring is not in place is reduced.

[0026] 5. By setting up a connecting plate, the linear motor only needs to drive the fixed part to rotate to drive the box body assembly to move, reducing the load of the linear motor, avoiding equipment failures caused by excessive load, prolonging the service life of the equipment, and further improving the safety of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a plane cross-sectional view of a height adjustment device for a medical suspension tower according to a preferred embodiment of the present invention;

[0028] Figure 2 It is Figure 1 An enlarged view of part A in the height adjustment device for a medical suspension tower;

[0029] Figure 3 It is Figure 1 A schematic structural diagram of the moving component in the height adjustment device for a medical suspension tower;

[0030] Figure 4 It is Figure 3 A schematic structural diagram of the moving component in the height adjustment device for a medical suspension tower from another perspective;

[0031] Figure 5 It is Figure 3 A partial schematic structural diagram of the moving component in the height adjustment device for a medical suspension tower;

[0032] Figure 6 It is Figure 1 A partial schematic structural diagram of the height adjustment device for a medical suspension tower;

[0033] Figure 7 It is Figure 1 A schematic diagram of the normal position of another part of the height adjustment device for a medical suspension tower;

[0034] Figure 8 It is Figure 7 A schematic diagram of the use state of another part of the height adjustment device for a medical suspension tower;

[0035] Figure 9 It is Figure 1 A circuit connection block diagram of the control component in the height adjustment device for a medical suspension tower; DETAILED DESCRIPTION OF THE INVENTION

[0036] The technical solution of the invention will be further described in detail below in conjunction with the preferred embodiments and their accompanying drawings in a non-limiting manner. In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "a plurality" means at least two, such as two, three, etc., unless otherwise specifically defined. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0037] As Figure 1 shown, a height adjustment device for a medical suspension tower corresponding to a preferred embodiment of the present invention, wherein the medical suspension tower includes a box body assembly 1 and a fixing assembly 4 fixed to the top of the house; the height adjustment device includes a moving assembly 2 and a control assembly 3 for controlling the moving assembly 2. One end of the moving assembly 2 is fixed to the fixing assembly 4, and the other end is connected to the box body assembly 1 and drives the box body assembly 1 to move.

[0038] The box body assembly 1 includes a hollow arm 11, a front connecting plate 12, an outer shell 15, a rear connecting plate 13, and a terminal protection shell 16 that are fixedly connected in sequence along its axial direction, and is provided with a hollow inner cavity 17. The outer shell 15 is provided with a hollow chamber 151 for accommodating appliances. The terminal protection shell 16 is arranged at the end of the box body assembly 1 and covers the rear connecting plate 13 to protect the appliances in the rear connecting plate 13 and the inner cavity 17. Preferably, the terminal protection shell 16 is made of silicone material. During the descent of the box body assembly 1, the silicone material terminal protection shell 16 can effectively prevent it from colliding with surrounding medical equipment or staff and causing damage to them.

[0039] Further referring to Figures 2 to 6 , the moving assembly 2 includes a linear motor 24, a connecting portion 22 fixedly connected to the fixing assembly 4, a fixing portion 23 fixedly connected to the box body assembly 1, a displacement sensor 25, a connecting plate 26, a protection shell 27, a pair of rotating shafts 28, and a signal receiver 21.

[0040] The signal receiver 21 is used to receive an instruction (to be described later) issued by the control assembly 3 so that the moving assembly 2 moves according to the instruction received by the signal receiver 21, and is fixedly installed on the linear motor 24.

[0041] The connecting part 22 includes a motor adjusting plate 221, a movable shaft 222, a pin 224, and a pair of limiting pieces 223. The motor adjusting plate 221 is fixedly connected to the fixing assembly 4 and is provided with a pair of protrusions 2212. Specifically, the protrusions 2212 are arranged at one end of the motor adjusting plate 221 away from the box body assembly 1 and are symmetrically arranged on both sides of the motor adjusting plate 221; preferably, the protrusions 2212 are integrally formed on the motor adjusting plate 221. The two ends of the movable shaft 222 are respectively inserted through the protrusions 2212 and can rotate relative to them; the two ends of the movable shaft 222 respectively protrude out of the protrusions 2212 and are provided with grooves 2221 protruding out of the protrusions 2212. The limiting pieces 223 are fixedly sleeved on the grooves 2221 and play a role in limiting the movable shaft 222 to prevent it from sliding along the axial direction relative to the protrusions 2212.

[0042] The fixing part 23 includes a pair of movable pins 231, a fixing shaft 232, a fixing seat 233, a hollow arm fixing seat 234, and an adjusting movable pin 236. The fixing shaft 232 is fixedly connected to the fixing seat 233 and is connected to the hollow arm fixing seat 234 and can slide relative to it. The hollow arm fixing seat 234 is fixedly connected to the box body assembly 1. Specifically, it is fixedly connected to the hollow arm 11. At the same time, the hollow arm fixing seat 234 is fixedly connected to the movable pin 231 and the rotating shaft 28. One end of the movable pin 231 is fixedly connected to the fixing part 23, and the other end is inserted through the connecting plate 26 and can move up and down relative to it (described later). Specifically, the movable pin 231 is fixedly connected to the hollow arm fixing seat 234 and is symmetrically arranged on both sides of the hollow arm fixing seat 234, and protrudes out of the hollow arm fixing seat 234. One end of the adjusting movable pin 236 is inserted through the fixing seat 233, and the other end is threadedly connected to the hollow arm fixing seat 234; by adjusting the length of the adjusting movable pin 236 engaged with the hollow arm fixing seat 234, the fixing seat 233 can be made to slide relative to the hollow arm fixing seat 234, and the position of the box body assembly 1 relative to the fixing seat 233 can be adjusted. Therefore, by adjusting the adjusting movable pin 236, the position of the box body assembly 1 relative to the fixing seat 233 can be changed, thereby changing its lifting range to adapt to operations in houses of different heights and by people of different heights, improving the operation comfort and safety.

[0043] One end of the linear motor 24 is connected to the connecting part 22, and the other end is connected to the fixing part 23. Specifically, the linear motor 24 is provided with a first connecting part 241 fixedly connected to the movable shaft 221 and a second connecting part 242 connected to the fixed shaft 232. The first connecting part 241 is fixedly sleeved on the movable shaft 221 and gaskets 243 are arranged on both sides. The second connecting part 242 is fixedly sleeved on the fixed shaft 232 and gaskets 243 are arranged on both sides. Preferably, a pair of linear motors 24 are provided and are respectively arranged at both ends of the movable shaft 221. To limit the linear motor 24 from sliding relative to the movable shaft 221 or the fixed shaft 232, a sleeve 244 is arranged between the two linear motors 24. The sleeve 244 is respectively sleeved on the movable shaft 22 and the fixed shaft 232, and its two ends respectively abut against the gaskets 243 on one side of the linear motor 24 to limit the sliding of the linear motor 24.

[0044] One end of the displacement sensor 25 is connected to the connecting part 22, and the other end is connected to the fixing part 23, and it is placed parallel to the linear motor 24 to monitor the moving distance of the linear motor. Specifically, the displacement sensor 25 is provided with a third fixing part 251 and a fourth connecting part 252. The third fixing part 251 is fixedly sleeved on the movable shaft 222; the fourth fixing part 252 is fixedly sleeved on the fixed shaft 232. Therefore, the displacement sensor 25 and the linear motor 24 expand and contract simultaneously, improving the accuracy of the data monitored by the displacement sensor 25 and ensuring the accuracy of the movement.

[0045] Further refer to Figures 7 to 8, one end of the connecting plate 26 is fixedly connected to the connecting portion 22, and the other end is movably connected to the fixing portion 23. Specifically, the connecting plate 26 is provided with a waist-shaped groove 261, a connecting plate hole 262, and a connecting plate pin hole 263. The connecting plate hole 262 is used to mate the rotating shaft 28 with the connecting plate 26; specifically, one end of the rotating shaft 28 passes through the connecting plate hole 262 and can rotate relative thereto, and the other end of the rotating shaft 28 is fixedly connected to the hollow arm fixing seat 234, so that the connecting plate 26 is movably connected to the fixing portion 23 and the fixing portion 23 can rotate relative to it. And, the connecting plate 26 is fixedly connected to the pin 224 of the connecting portion 22 through the connecting plate pin hole 263. The waist-shaped groove 261 is used to accommodate the movable pin 231 of the fixing portion 23, and the movable pin 231 can move relative to the waist-shaped groove 261. Therefore, when the linear motor 24 moves, the fixing portion 23 fixedly connected to the linear motor 24 and the box body assembly 1 connected to the fixing portion 23 move accordingly; the fixing portion 23 rotates around the rotating shaft 28, and at the same time, the movable pin 231 moves up and down along the waist-shaped groove 261 to swing the box body assembly 1 up or down (as shown by the arrow D). By providing the connecting plate 26, when the linear motor 24 moves, the fixing portion 23 rotates relative to the connecting plate 26 with the rotating shaft 28, and at the same time, swings up and down along the waist-shaped groove 261 of the connecting plate 26, which can drive the box body assembly 1 connected to the fixing portion 23 to swing up and down; the linear motor 24 only needs to drive the fixing portion 23 to rotate to drive the box body assembly 1 to move, reducing the load of the linear motor 24, avoiding equipment failures due to excessive load, prolonging the service life of the equipment, and further improving the safety of the equipment.

[0046] The protective shell 27 covers the connecting plate 26 and protects the linear motor 24 and the displacement sensor 25, and at the same time makes the equipment more beautiful.

[0047] Further refer to Figure 9, the control component 3 is arranged at the end 171 of the inner cavity of the box body component 1, and it includes a sound receiver 31, a voice control circuit board 32, a distance sensor 33 and a cable 34. The sound receiver 31 is arranged in the inner cavity 17 of the box body component 1 and is used to receive and feedback sound signals, and it is connected to the voice control circuit board 32. Specifically, the sound receiver 31 is signal-connected to the voice control circuit board 32; after receiving the sound signal sent by the medical staff, it feeds back the received sound signal to the voice control circuit board 32. The sound receiver 31 is installed in the hollow chamber 151 of the outer shell 15 and is placed close to the voice control circuit board 32 to reduce the feedback distance of the sound signal, improve the accuracy of the sound signal received by the voice control circuit board 32, and improve the safety of the device. Preferably, the number of the sound receivers 31 is at least one; specifically, two sound receivers 31 are arranged in this embodiment to prevent interference from noise or other signals, and at the same time make the sound signal received by the sound receiver 31 more accurate, reduce the error rate of the device, and improve safety. The voice control circuit board 32 is fixedly installed on the rear connection board 13, and it is used to receive the sound signal fed back by the sound receiver 31 and issue instructions. The voice control circuit board 32 is respectively connected to the signal receiver 21 and the displacement sensor 25. Specifically, the voice control circuit board 32 is signal-connected to the signal receiver 21 to make the motion component 2 move according to the instructions of the voice control circuit board 32. The voice control circuit board 32 is signal-connected to the displacement sensor 25 to enable the voice control circuit board 32 to monitor and control the motion of the motion component 2. When the voice control circuit board 32 receives the sound signal fed back by the sound receiver 31, it first identifies the distance that the medical staff needs to adjust, then calculates the distance that the linear motor 24 needs to move through calculation, and then sends an instruction signal to the signal receiver 21 to control the movement of the linear motor 24. At the same time, the displacement sensor 25 monitors the movement distance of the linear motor 24 in real time and feeds it back to the voice control circuit board 32 to achieve the effect of closed-loop control. The distance sensor 33 is fixedly installed on the rear connection board 13 and is arranged at the end of the box body component 1 to monitor the distance between the box body component 1 and surrounding objects; at the same time, it is connected to the voice control circuit board 32. Preferably, the distance sensor 33 is electrically connected to the voice control circuit board 32. Specifically, the distance sensor 33 is arranged at the bottom of the rear connection board 13 and is connected to the voice control circuit board 32 through the cable 34. One end of the cable 34 is connected to the distance sensor 33, and the other end is connected to the voice control circuit board 32. The distance sensor 33 monitors the distance between the box body component 1 and surrounding objects in real time and transmits the monitored information to the voice control circuit board 32 through the cable 34. When the distance information monitored by the distance sensor 33 is less than the set safety value, the voice control circuit board 32 receives the information and sends a stop instruction to the linear motor 24; to avoid the box body component 1 colliding with objects or even medical staff during the descending process, and improve the safety during the use of the device.The distance sensor 33 is connected to the voice control circuit board 32 through the cable 34, which further improves the speed and accuracy of signal transmission, enabling the voice control circuit board 32 to respond in a timely manner and further enhancing the safety of the device.

[0048] During use, medical staff issue a preset command such as "Hello, Maimai, lower the box by 10 mm"; the sound receiver 31 receives the sound signal and feeds it back to the voice control circuit board 32. The voice control circuit board 32 calculates the sound signal fed back by the sound receiver 31 and then issues an instruction to the linear motor 24. The linear motor 24 extends or contracts according to the corresponding instruction, causing the fixing part 23 to move up and down along the kidney-shaped groove 261 to drive the box assembly 1 to swing up and down. The displacement sensor 25 monitors the movement distance of the linear motor 24 in real time and feeds it back to the voice control circuit board 32. When the linear motor 24 moves a specified length, the voice control circuit board 32 controls the linear motor 24 to stop. At the same time, the distance sensor 33 monitors the distance between the box assembly 1 and surrounding objects in real time and feeds the information back to the voice control circuit board 32. When the distance information fed back by the distance sensor 33 is less than the set safety value, the voice control circuit board 32 controls the linear motor 24 to stop moving.

[0049] The usage method of the height adjustment device of the medical suspension tower of the present invention is as follows:

[0050] It includes the following steps:

[0051] 1). The sound receiver 31 receives the preset sound signal issued by the staff and feeds the received sound signal back to the voice control circuit board 32;

[0052] 2). The voice control circuit board 32 receives the feedback information from the sound receiver 31, calculates the feedback information, and then issues a corresponding instruction to the linear motor 24;

[0053] 3). The linear motor 24 moves according to the instruction issued by the voice control circuit board 32;

[0054] 4). The displacement sensor 25 monitors the movement distance of the linear motor 24 in real time and feeds it back to the voice control circuit board 32. When the linear motor 24 moves to the specified position, the voice control circuit board 32 issues a stop instruction.

[0055] In addition, it also includes the following steps:

[0056] The distance between the height adjustment device of the medical suspension tower and surrounding objects is monitored in real time through the distance sensor 33. If the monitored distance is less than the set value, a stop signal is sent to the voice control circuit board 32.

[0057] Therefore, the device and working method of the present application only need to control the descent of the box body assembly 1 through sound, liberating the hands of medical staff to facilitate other operations by medical staff and improving work efficiency; by setting the displacement sensor 25, the movement distance of the linear motor 24 can be monitored and controlled in real time to achieve closed-loop control and improve the accuracy of movement; by setting the distance sensor 33, it is prevented that the box body assembly 1 collides with surrounding objects during the falling process, improving the safety during the use of the device; by setting the terminal protection shell 16 made of silica gel, the damage caused by the collision between the box body assembly 1 and surrounding objects when the program makes a misjudgment or the monitoring is not in place is reduced; by setting the connecting plate 26, the linear motor 24 only needs to drive the fixing part 23 to rotate to drive the movement of the box body assembly 1, reducing the load of the linear motor 24, avoiding equipment failures caused by excessive load, extending the service life of the equipment, and further improving the safety of the equipment.

[0058] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A height adjustment device for a medical suspension tower, wherein the medical suspension tower includes a box body assembly (1), and the height adjustment device includes a moving assembly (2). The moving assembly (2) is connected to the box body assembly (1) and drives the box body assembly (1) to move. It is characterized in that, The height adjustment device further includes a control component (3) for controlling the movement of the movement component (2); the control component (3) includes a sound receiver (31) and a voice control circuit board (32); the movement component (2) includes a signal receiver (21), a linear motor (24), and a displacement sensor (25); the signal receiver (21) is fixedly installed on the linear motor (24) and is connected to the voice control circuit board (32) and receives the instructions of the voice control circuit board (32), so that the movement component (2) moves according to the instructions of the voice control circuit board (32); the voice control circuit board (32) is connected to the displacement sensor (25) and monitors and controls the movement of the movement component (2). The movement component (2) includes a linear motor (24), a connecting part (22) fixedly connected to the top of the house, and a fixing part (23) fixedly connected to the box body component (1), one end of the linear motor (24) is connected to the connecting part (22), and the other end is connected to the fixing part (23). The movement component (2) further includes a connecting plate (26), one end of the connecting plate (26) is fixedly connected to the connecting part (22), and the other end is movably connected to the fixing part (23). The connecting plate (26) is provided with a waist-shaped groove (261), the fixing part (23) is provided with a movable pin (231), one end of the movable pin (231) is fixedly connected to the fixing part (23), and the other end is movably inserted into the waist-shaped groove (261). When the linear motor (24) moves, the fixing part (23) fixedly connected to the linear motor (24) and the box body component (1) connected to the fixing part (23) move accordingly; so that the fixing part (23) rotates around the rotation axis (28), and at the same time the movable pin (231) moves up and down along the waist-shaped groove (261) to make the box body component (1) swing up or down.

2. The height adjustment device for a medical suspension tower according to claim 1, characterized in that, The control component (3) is arranged in the inner cavity end (171) of the box body component (1) and further includes a distance sensor (33), and the distance sensor (33) is connected to the voice control circuit board (32).

3. The height adjustment device for a medical suspension tower according to claim 1, characterized in that, The sound receiver (31) is arranged in the inner cavity (17) of the box body component (1), and the number of the sound receivers is at least one.

4. The height adjustment device for a medical suspension tower according to claim 1, characterized in that, One end of the displacement sensor (25) is connected to the connecting part (22), the other end is connected to the fixing part (23), and it is placed parallel to the linear motor (24) to monitor the movement distance of the linear motor (24).

5. The height adjustment device for a medical suspension tower according to claim 1, characterized in that, The box body component (1) includes a terminal protection shell (16), and the terminal protection shell (16) is arranged at the end of the box body component (1) and is made of silica gel material.

6. A method for using the height adjustment device for a medical suspension tower according to any one of claims 1-5 above, characterized in that, It includes the following steps: Step 1, the sound receiver (31) receives the preset sound signal sent by the staff and feeds back the received sound signal to the voice control circuit board (32). Step 2, the voice control circuit board (32) receives the feedback information from the sound receiver (31) and calculates the feedback information, and then issues corresponding instructions to the linear motor (24). Step 3, the linear motor (24) moves according to the instructions issued by the voice control circuit board (32). Step 4: The displacement sensor (25) monitors the moving distance of the linear motor (24) in real time and feeds it back to the voice control circuit board (32). After the linear motor (24) moves to the specified position, the voice control circuit board (32) sends a stop command to the linear motor (24).

7. The method for using according to claim 6, characterized in that, It further includes the following steps: The distance sensor (33) monitors the distance between the box body assembly (1) and surrounding objects in real time. If the monitored distance is less than the set value, a stop signal is sent to the voice control circuit board (32).

Images