Simple back beating and sputum excretion device

Abstract

The utility model provides a simple back patting sputum excretion device which comprises a driving motor, a driving wheel, a patting arm and a patting pad. Wherein the driving motor is provided with a driving shaft; the driving wheel and the driving shaft are fixedly installed, and a guide rail is arranged on one side face of the driving wheel. One end of the flapping arm is matched and connected with the guide rail through a guide shaft, and the other end is provided with a flapping pad. During use, a patient is turned over to a prone position, the device is fixed to a bed body, and the patting pad is aligned to the position, needing to be patted, of the back of the patient; after the driving motor is started, the driving motor drives the driving wheel to rotate, and the guide shaft moves in the guide rail to drive the flapping arm and the flapping pad to perform flapping action. The simple back patting and sputum excretion device can be used without the need for a patient to keep a sitting posture, and the back patting frequency can be controlled by controlling the rotating speed of the driving motor, so that the simple back patting and sputum excretion device can carry out back patting actions at the frequency suitable for the current physical condition of the patient, and additional injuries are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nursing devices, in particular to a device which can help patients to expectorate by rhythmically patting their backs. Background Art

[0002] Patients with lung diseases are prone to phlegm accumulation, and for patients with lung diseases who are bedridden for a long time, phlegm will accumulate near the back due to gravity. Due to long-term illness, most patients are in poor physical condition, with decreased lung function and less airflow, making it difficult to cough up phlegm. However, expectoration is very important for patients who are bedridden for a long time, because if phlegm cannot be coughed up as soon as possible, it will be retained in the bronchi and even solidify to form phlegm plugs, which will partially block the bronchi and cause obstructive pneumonia or atelectasis, further aggravating the condition.

[0003] Most patients who are bedridden for a long time are unable to expectorate on their own and need to use a sputum-scratching machine to assist in expectoration. The sputum-scratching devices currently in use are generally wearable sputum-scratching machines, such as full-chest oscillation sputum-scratching machines, which work by simulating the chest wall oscillation caused by coughing through high-frequency full-chest oscillation technology, so that the mucus and metabolites on the surface of the respiratory mucosa can be relaxed and liquefied, and the weak patients after surgery can be helped to enhance their ability to expel secretions such as sputum from the respiratory system, and improve the stagnant pulmonary blood circulation. Wearable sputum-scratching machines generally need to be used in a sitting position. However, for patients who are bedridden for a long time, it is already difficult to get up, and it is even more difficult to maintain a sitting position for a long time. Therefore, it is very inconvenient to use the above-mentioned wearable sputum-scratching machines. In addition, most patients who are bedridden for a long time are thin and in poor physical condition, and it is difficult for them to tolerate the high-frequency full-chest oscillation of the above-mentioned wearable sputum-scratching machines, which may cause additional damage to the patients.

[0004] Therefore, how to design a device that can be used without the patient having to stand up and can control the frequency of back patting to help the patient expectorate is a technical problem that has not yet been solved in the prior art. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defects of the wearable sputum-beating machine in the prior art that is inconvenient to use for long-term bedridden patients and its high-frequency whole-chest oscillation sputum-beating method is easy to cause damage to patients, thereby providing an auxiliary sputum discharge device that does not require the patient to get up and can control the frequency of back beating.

[0006] To this end, the utility model provides a simple back-patting sputum removal device, comprising:

[0007] A driving motor is fixedly arranged and has a driving shaft;

[0008] A driving wheel is fixedly mounted on the driving shaft and can be driven to rotate by the driving shaft; a guide track is provided on a side of the driving wheel away from the driving motor;

[0009] A flapping arm, the middle part of which is rotatably fixed by a rotating shaft, one end of the flapping arm is connected to the guide track through a guide shaft, and the other end is provided with a flapping pad;

[0010] When the guide shaft moves along the guide track, it drives the slapping arm to rotate back and forth along the middle part, thereby driving the slapping pad to perform a slapping action.

[0011] As a preferred embodiment, the guide track includes a first semicircular drive track with the rotation center of the drive wheel as the center, two parallel tracks extending tangentially along the two ends of the first semicircular drive track, and a second semicircular drive track connected to the ends of the two parallel tracks; the second semicircular drive track is arranged close to the outer circumference of the drive wheel.

[0012] As a preferred solution, the bottom surface of the slapping pad is made of soft material and is evenly provided with a plurality of buffer grooves, and the side surface of the slapping pad is provided with exhaust holes connected to the buffer grooves.

[0013] As a preferred embodiment, the top surface of the beating pad is provided with two parallel and opposite fixing plates, and the fixing plates are provided with fixing through holes; the beating arm is provided with a first through hole; after the beating arm is installed between the two fixing plates, the first through hole is located between the two fixing through holes, and the beating pad is movably installed on one end of the beating arm after a first connecting shaft is passed through the fixing through hole and the first through hole.

[0014] As a preferred solution, it also includes a supporting structure for fixing and supporting the driving motor and the flapping arm;

[0015] The support structure comprises:

[0016] A fixing clip, suitable for clamping and fixing on the bed;

[0017] A support base, fixedly connected to the fixing clamp;

[0018] A first support member, fixedly disposed on the support base, has a first U-shaped structure, and is used to rotatably and fixedly support the middle portion of the flapping arm;

[0019] The second support member is fixedly arranged on the support base and has a second U-shaped structure, and is used for fixedly supporting the drive motor.

[0020] As a preferred solution, a first supporting through hole is provided on the first U-shaped structure, and a second through hole is provided in the middle of the flapping arm. The flapping arm is rotatably fixed on the first supporting member after a rotating shaft passes through the first supporting through hole and the second through hole.

[0021] As a preferred solution, a second supporting through hole is provided on the second U-shaped structure; the driving motor has a fixed driving sleeve, and the driving shaft passes through the inside of the driving sleeve; the driving sleeve passes through the inside of the second supporting through hole and is supported and fixed on the second supporting member.

[0022] As a preferred solution, an accommodation space for partially accommodating the driving wheel is formed between the first support member and the second support member.

[0023] As a preferred solution, a fixed connecting piece is fixedly connected to the top surface of the fixing clamp, and the diameter of the main body of the fixing connecting piece is smaller than the diameters of the top end and the bottom end;

[0024] The support base has an inner cavity and a side through hole communicating with the inner cavity;

[0025] The support base is sleeved on the fixed connection piece, and the pin shaft is pluggably inserted into the inner cavity of the support base from the side through hole and abuts against the main body, thereby fixing the support base on the fixing clamp.

[0026] As a preferred solution, it also includes a controller electrically connected to the drive motor; the controller is provided with a controller switch and an adjustment knob, the controller switch is used to control the controller to be turned on or off, and the adjustment knob is used to control the rotation speed of the drive shaft.

[0027] The technical solution provided by the utility model has the following advantages:

[0028] 1. The utility model provides a simple back-patting expectoration device, comprising a driving motor, a driving wheel, a slapping arm and a slapping pad; wherein the driving motor is fixedly arranged and has a driving shaft; the driving wheel is fixedly installed with the driving shaft and can be driven to rotate by the driving shaft, and a guide track is provided on a side of the driving wheel away from the driving motor; the middle part of the slapping arm is rotatably fixed by a rotating shaft, one end of the slapping arm is connected to the guide track by a guide shaft, and the other end is provided with a slapping pad; when the guide shaft moves along the guide track, the slapping arm is driven to move back and forth along the middle part, thereby driving the slapping pad to perform a slapping action.

[0029] When using the simple back-patting sputum-expelling device of the utility model to pat the back of a long-term bedridden patient to help expectorate, the patient is first helped to turn over to a prone position to expose the patient's back, and then the family members or medical staff fix the entire device at a suitable position on the bed so that the patting pad is aligned with the position on the patient's back that needs to be patted; after starting the drive motor, the drive motor drives the drive wheel to rotate through the drive shaft, and the guide track on the drive wheel drives the guide shaft to move along a specific track, thereby driving the patting arm and the patting pad to perform a rhythmic patting action.

[0030] The simple back-patting expectoration device of the utility model can be used without the patient maintaining a sitting position. The back-patting method is a simple patting method rather than the oscillation method of the existing whole-chest oscillating expectoration machine, and the back-patting frequency can be controlled by controlling the rotation speed of the driving motor, so that the simple back-patting expectoration device of the utility model can perform the back-patting action at a frequency suitable for the patient's current physical condition, and can avoid additional harm to the patient caused by excessively high back-patting frequency.

[0031] 2. The simple back-patting expectoration device of the utility model comprises a guide track comprising a first semicircular driving track, a parallel track and a second semicircular driving track; wherein the first semicircular driving track takes the rotation center of the driving wheel as the center of the circle; there are two parallel tracks, which extend tangently along the two ends of the first semicircular driving track; the second semicircular driving track is connected to the ends of the two parallel tracks, and the second semicircular driving track is arranged close to the outer circumference of the driving wheel; the guide shaft moves in the guide track, and when it reaches the second semicircular driving track, the slapping pad is raised, and in the process of continuing to move toward the first semicircular driving track, the slapping pad is gradually lowered; when the guide shaft moves to the first semicircular driving track, the slapping pad is reduced to the lowest level, and when it continues to move from the first semicircular driving track along the parallel track to the second semicircular driving track, the slapping pad is gradually raised; when the guide shaft quickly enters the first semicircular track from the second semicircular track via the parallel track, there will be an acceleration, so that the slapping pad quickly switches from a high position to a low position, thereby achieving forceful slapping.

[0032] 3. The utility model provides a simple back-patting expectoration device, wherein the bottom surface of the patting pad is made of a soft material, and a plurality of buffer grooves and exhaust holes connected to the buffer grooves are evenly provided. The patting pad made of soft material can provide force buffering when patting the patient's back, thereby avoiding the patting force from acting rigidly on the patient's body and causing discomfort to the patient. The design of the buffer grooves and exhaust holes can play a role similar to that of human hand tapping, and the patting effect is better.

[0033] 4. In the simple back-patting expectoration device of the utility model, the support base is fixedly installed on the fixing clamp by a pin shaft. When the direction of the slapping arm needs to be changed, the pin shaft can be pulled out and the support base can be rotated to change the direction of the slapping arm. The support base can be re-fixed on the fixing clamp by inserting the pin shaft again.

[0034] 5. The simple back-patting expectoration device of the utility model has an adjusting knob on the controller. By controlling the rotation speed of the driving motor, the patting frequency of the patting arm can be controlled and adjusted to adapt to the patient's current physical condition. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the prior art or the specific implementation methods of the present utility model, the drawings used in the description of the prior art or the specific implementation methods are briefly introduced below.

[0036] Figure 1 It is a schematic diagram of the overall structure of the simple back-patting phlegm-removing device of the utility model.

[0037] Figure 2 yes Figure 1 Another stereoscopic view of .

[0038] Figure 3 yes Figure 1 sectional view of .

[0039] Figure 4 yes Figure 1 Another cross-sectional view of .

[0040] Figure 5 yes Figure 1 Schematic diagram of the structure of the middle drive wheel.

[0041] Figure 6 yes Figure 1 Schematic diagram of the structure after the middle flapping arm and flapping pad are assembled.

[0042] Figure 7 yes Figure 6 Another stereoscopic view of .

[0043] Figure 8 yes Figure 1 Schematic diagram of the structure of the middle support base.

[0044] Fig. 9 yes Figure 8 Another stereoscopic view of .

[0045] Fig.10 yes Figure 1 Schematic diagram of the structure of the middle fixing clip.

[0046] Fig.11 yes Figure 1 Schematic diagram of the connection between the controller and the drive motor.

[0047] Figure numerals: 1. driving motor; 11. driving shaft; 12. controller; 14. controller switch; 15. adjusting knob; 16. driving sleeve; 2. driving wheel; 21. guide track; 23. first semicircular driving track; 24. parallel track; 25. second semicircular driving track; 3. fixing clamp; 31. fixing connecting member; 32. main body; 4. flapping arm; 41. guide shaft; 42. first through hole; 43. second through hole; 5. flapping pad; 51. fixing plate; 52. buffer groove; 53. exhaust hole; 54. fixing through hole; 61. supporting base; 62. first supporting member; 63. second supporting member; 64. side through hole; 68. accommodating space; 8. first supporting through hole; 9. second supporting through hole; 100. first connecting shaft. DETAILED DESCRIPTION

[0048] In order to make those skilled in the art better understand the present solution, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of the present application.

[0049] It should be noted that the terms "first", "second", etc. in the claims and description of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not limited to those steps or units clearly listed, but may also include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0050] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation. In addition, in addition to being used to indicate orientation or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in the present application can be understood according to the specific circumstances. In addition, the term "multiple" should mean two or more. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

[0051] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments. Example

[0052] This embodiment provides a simple back-patting sputum removal device. Figure 1-11 As shown, it includes: a driving motor 1, a driving wheel 2, a flapping arm 4 and a flapping pad 5; wherein the driving motor 1 is fixedly arranged and has a driving shaft 11; the driving wheel 2 is fixedly installed with the driving shaft 11, and can be driven by the driving shaft 11 to rotate; a guide track 21 is provided on the side surface of the driving wheel 2 away from the driving motor 1; the middle part of the flapping arm 4 is rotatably fixed by a rotating shaft, one end of the flapping arm 4 is connected to the guide track 21 by a guide shaft 41, and the other end is provided with a flapping pad 5; when the guide shaft 41 moves along the guide track 21, it drives the flapping arm 4 to rotate back and forth along the middle part, thereby driving the flapping pad 5 to perform a flapping action.

[0053] When the simple back-patting expectoration device of this embodiment is used for a long-term bedridden patient, the patient is first helped to turn over to a prone position to expose the patient's back, and then the family member or medical staff holds the slapping arm 4 or fixes the entire device at a suitable position on the bed, so that the slapping pad 5 is aligned with the position on the patient's back that needs to be slapped; after starting the drive motor 1, the drive motor 1 drives the drive wheel 2 to rotate through the drive shaft 11, and the guide track 21 on the drive wheel 2 drives the guide shaft 41 to move in the guide track 21, thereby driving the slapping arm 4 and the slapping pad 5 to perform a rhythmic slapping action.

[0054] The simple back-patting sputum removal device of the present embodiment can be used without the patient having to sit down. The back-patting method is a simple patting method rather than the oscillation method of the existing whole-chest oscillation sputum removal machine. The back-patting frequency can be controlled by controlling the rotation speed of the driving motor 1, so that the simple back-patting sputum removal device of the present embodiment can perform the back-patting action at a frequency suitable for the patient's current physical condition, thereby avoiding additional harm to the patient caused by excessively high back-patting frequency.

[0055] Specifically, Figure 2 and 5 As shown, the guide track 21 includes a first semicircular drive track 23 with the rotation center of the drive wheel 2 as the center, two parallel tracks 24 extending tangentially along the two ends of the first semicircular drive track 23, and a second semicircular drive track 25 connected to the ends of the two parallel tracks 24; the second semicircular drive track 25 is arranged close to the outer circumference of the drive wheel 2. When the device is running, the guide shaft 41 moves in the guide track 21, and when it reaches the second semicircular driving track 25, the slapping pad 5 is lifted, and in the process of continuing to move toward the first semicircular driving track 23, the slapping pad 5 is gradually lowered; when the guide shaft 41 moves to the first semicircular driving track 23, the slapping pad 5 drops to the lowest point, and when it continues to move from the first semicircular driving track 23 along the parallel track 24 to the second semicircular driving track 25, the slapping pad 5 is gradually lifted; when the guide shaft 41 quickly enters the first semicircular track 23 from the second semicircular track 25 via the parallel track 24, there will be an acceleration, so that the slapping pad 5 quickly switches from a high position to a low position, thereby achieving a forceful slapping.

[0056] like Figure 6 and Figure 7 As shown, the bottom surface of the slapping pad 5 is made of soft material and is evenly provided with a plurality of buffer grooves 52, and the side surface of the slapping pad 5 is provided with exhaust holes 53 connected with the buffer grooves 52; the slapping pad 5 made of soft material can buffer the force when slapping the patient's back, avoiding the slapping force from acting hard on the patient's body and causing discomfort to the patient; the design of the buffer grooves 52 and the exhaust holes 53 can play a role similar to that of human hand tapping, and the slapping effect is better.

[0057] The top surface of the slapping pad 5 is provided with two parallel and opposite fixing plates 51, and the fixing plates 51 are provided with fixing through holes 54; the slapping arm 4 is provided with a first through hole 42; after the slapping arm 4 is installed between the two fixing plates 51, the first through hole 42 is located between the two fixing through holes 54, and the slapping pad 5 is movably installed on one end of the slapping arm 4 after the first connecting shaft 100 is passed through the fixing through hole 54 and the first through hole 42.

[0058] like Figure 8 and 9As shown, it also includes a supporting structure for fixedly supporting the driving motor 1 and the flapping arm 4; the supporting structure includes: a fixing clamp 3 suitable for clamping and fixing on the bed body; a supporting base 61 is fixedly connected to the fixing clamp 3; a first supporting member 62 is fixedly arranged on the supporting base 61, having a first U-shaped structure, and is used to rotatably fix and support the middle part of the flapping arm 4; a second supporting member 63 is fixedly arranged on the supporting base 61, having a second U-shaped structure, and is used to fixedly support the driving motor 1.

[0059] The first U-shaped structure is provided with a first supporting through hole 8, and the middle part of the flapping arm 4 is provided with a second through hole 43. The flapping arm 4 is rotatably fixed on the first supporting member 62 after a rotating shaft passes through the first supporting through hole 8 and the second through hole 43.

[0060] The second U-shaped structure is provided with a second supporting through hole 9 ; the driving motor 1 has a fixedly arranged driving sleeve 16 , and the driving shaft 11 passes through the driving sleeve 16 ; the driving sleeve 16 passes through the second supporting through hole 9 and is supported and fixed on the second supporting member 63 .

[0061] An accommodation space 68 for partially accommodating the driving wheel 2 is formed between the first supporting member 62 and the second supporting member 63 .

[0062] like Fig.10 As shown, the top surface of the fixing clamp 3 is fixedly connected with a fixing connector 31, and the diameter of the main body 32 of the fixing connector 31 is smaller than the diameters of the top and bottom ends; the support base 61 has an inner cavity, and a side through hole 64 connected to the inner cavity; the support base 61 is sleeved on the fixing connector 31, and the pin shaft is pluggably inserted into the inner cavity of the support base 61 from the side through hole 64, and abuts against the main body 32, thereby fixing the support base 61 on the fixing clamp 3; the pin shaft can pluggably fix the support base 61 on the fixing clamp 3, and when it is necessary to change the direction of the flapping arm 4, the pin shaft is pulled out, the support base 61 is rotated, the direction of the flapping arm 4 is changed, and then the pin shaft is inserted to fix the support base 61.

[0063] like Fig.11 As shown, it also includes a controller 12 electrically connected to the driving motor 1; the controller 12 is provided with a controller switch 14 and an adjusting knob 15, the controller switch 14 is used to control the controller 12 to be turned on or off, and the adjusting knob 15 is used to control the rotation speed of the driving shaft 11; the controller 12 is provided with an adjusting knob 15, which can control the rotation speed of the driving shaft 11, thereby controlling the flapping frequency of the flapping arm 4 to reduce the risk of patient injury.

[0064] When using the simple back-patting sputum removal device of this embodiment to pat the back of a bedridden patient to help expectorate, first help the patient turn over to a prone position to expose the patient's back, and then the family member or medical staff holds the slapping arm 4 or fixes the entire device at a suitable position on the bed, so that the slapping pad 5 is aligned with the position on the patient's back that needs to be patted; after starting the drive motor 1, the drive motor 1 drives the drive wheel 2 to rotate through the drive shaft 11, and the guide track 21 on the drive wheel 2 drives the guide shaft 41 to move in the guide track 21, thereby driving the slapping arm 4 and the slapping pad 5 to perform a rhythmic slapping action.

[0065] The simple back-patting sputum removal device of the present embodiment can be used without the patient having to sit down. The back-patting method is a simple patting method rather than the oscillation method of the existing whole-chest oscillation sputum removal machine. The back-patting frequency can be controlled by controlling the rotation speed of the driving motor 1, so that the simple back-patting sputum removal device of the present embodiment can perform the back-patting action at a frequency suitable for the patient's current physical condition, thereby avoiding additional harm to the patient caused by excessively high back-patting frequency.

[0066] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from them are still within the protection scope of this innovative technical solution.

Claims

1. A simple back-patting expectoration device, characterized in that: include: A drive motor (1) is fixedly arranged and has a drive shaft (11); A driving wheel (2) is fixedly mounted on the driving shaft (11) and can be driven to rotate by the driving shaft (11); a guide track (21) is provided on a side surface of the driving wheel (2) away from the driving motor (1); A flapping arm (4), the middle part of which is rotatably fixed via a rotating shaft, one end of the flapping arm (4) is connected to the guide track (21) via a guide shaft (41), and the other end is provided with a flapping pad (5); When the guide shaft (41) moves along the guide track (21), it drives the flapping arm (4) to rotate back and forth along the middle, thereby driving the flapping pad (5) to perform a flapping action.

2. The simple back-patting expectoration device according to claim 1, characterized in that: The guide track (21) comprises a first semicircular drive track (23) with the rotation center of the drive wheel (2) as its center, two parallel tracks (24) extending tangentially along the two ends of the first semicircular drive track (23), and a second semicircular drive track (25) connected to the ends of the two parallel tracks (24); the second semicircular drive track (25) is arranged close to the outer circumference of the drive wheel (2).

3. The simple back-patting expectoration device according to claim 2, characterized in that: The bottom surface of the slapping pad (5) is made of a soft material and is evenly provided with a plurality of buffer grooves (52). The side surface of the slapping pad (5) is provided with exhaust holes (53) that are in communication with the buffer grooves (52).

4. The simple back-patting expectoration device according to claim 3, characterized in that: The top surface of the slapping pad (5) is provided with two parallel and opposite fixing plates (51), and the fixing plates (51) are provided with fixing through holes (54); the slapping arm (4) is provided with a first through hole (42); after the slapping arm (4) is installed between the two fixing plates (51), the first through hole (42) is located between the two fixing through holes (54), and after a first connecting shaft (100) is passed through the fixing through hole (54) and the first through hole (42), the slapping pad (5) is movably installed on one end of the slapping arm (4).

5. The simple back-patting expectoration device according to claim 1, characterized in that: It also includes a support structure for fixedly supporting the drive motor (1) and the flapping arm (4); The support structure comprises: A fixing clamp (3), adapted to be clamped and fixed on the bed; A supporting base (61) fixedly connected to the fixing clamp (3); A first support member (62) is fixedly disposed on the support base (61) and has a first U-shaped structure, and is used to rotatably and fixedly support the middle portion of the flapping arm (4); The second support member (63) is fixedly arranged on the support base (61) and has a second U-shaped structure, and is used for fixedly supporting the drive motor (1).

6. The simple back-patting expectoration device according to claim 5, characterized in that: A first supporting through hole (8) is provided on the first U-shaped structure, a second through hole (43) is provided in the middle of the flapping arm (4), and the flapping arm (4) is rotatably fixed on the first supporting member (62) after a rotating shaft passes through the first supporting through hole (8) and the second through hole (43).

7. The simple back-patting expectoration device according to claim 6, characterized in that: The second U-shaped structure is provided with a second supporting through hole (9); the driving motor (1) has a fixedly arranged driving sleeve (16), and the driving shaft (11) passes through the interior of the driving sleeve (16); the driving sleeve (16) passes through the interior of the second supporting through hole (9) and is supported and fixed on the second supporting member (63).

8. The simple back-patting expectoration device according to claim 5, characterized in that: An accommodating space (68) for partially accommodating the driving wheel (2) is formed between the first supporting member (62) and the second supporting member (63).

9. The simple back-patting expectoration device according to claim 5, characterized in that: A fixed connection piece (31) is fixedly connected to the top surface of the fixing clamp (3), and the diameter of the main body (32) of the fixing connection piece (31) is smaller than the diameters of the top end and the bottom end; The support base (61) has an inner cavity and a side through hole (64) communicating with the inner cavity; The support base (61) is sleeved on the fixed connection member (31), and the pin is pluggably inserted into the inner cavity of the support base (61) from the side through hole (64) and abuts against the main body (32), thereby fixing the support base (61) on the fixing clamp (3).

10. The simple back-patting expectoration device according to claim 1, characterized in that: It also includes a controller (12) electrically connected to the drive motor (1); the controller (12) is provided with a controller switch (14) and an adjustment knob (15); the controller switch (14) is used to control the controller (12) to be turned on or off, and the adjustment knob (15) is used to control the rotation speed of the drive shaft (11).

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