Novel moxibustion instrument

By introducing a rotary telescopic mechanism and a reflow filter hood into the moxibustion instrument, the problem that existing moxibustion instruments cannot perform rotary moxibustion and slutching moxibustion at the same time is solved, and the smoke and dust emissions are effectively reduced, improving the effect and use environment of moxibustion.

CN120204039APending Publication Date: 2025-06-27WUJI COUNTY YIZHENG HEALTH MANAGEMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202510596783.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-09
Publication Date
2025-06-27

AI Technical Summary

Technical Problem

The existing moxibustion instruments have limitations in their operation methods, and they cannot achieve rotary moxibustion and scattered moxibustion at the same time, and the smoke filtration is insufficient, resulting in pollution problems.

Method used

A new type of moxibustion instrument was designed, using a rotary telescopic mechanism to drive the moxibustion strips to rotate and telescopic movement, so as to achieve the synchronization of rotary moxibustion and squid moxibustion, and at the same time, a reflow filter hood was set up to improve the smoke filtration effect.

Benefits of technology

Through the rotary telescopic mechanism, the moxibustion instrument can simultaneously realize rotary moxibustion and slutch moxibustion, improve the moxibustion effect, and effectively reduce smoke emissions through a reflow hood and improve the use environment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120204039A_ABST
    Figure CN120204039A_ABST
Patent Text Reader

Abstract

The invention relates to a novel moxibustion instrument, and belongs to the technical field of moxibustion. The moxibustion instrument comprises a rotary telescopic mechanism, the rotary telescopic mechanism drives the moxibustion sticks to rotate, stretch and move, the moxibustion method of rotary moxibustion and sparrow-pecking moxibustion is achieved at the same time, and suspended moxibustion can also be conducted. The rotary telescopic mechanism is driven by a direct current motor. The used moxibustion instrument is provided with a backflow type smoke filtering cover; the backflow type smoke filtering cover comprises an inner cover body, a middle cover body and an outer cover body which are sequentially sleeved; smoke outlets are formed in the end parts of the middle cover body and the inner cover body; the smoke flows back and forth in the backflow type smoke filtering cover; and filter cotton is arranged between the middle cover body and the outer cover body. According to the moxibustion instrument, sparrow-pecking moxibustion can be carried out while rotary moxibustion is achieved, and the moxibustion effect is improved. And suspended moxibustion can be realized. The moxibustion instrument is diversified in moxibustion method and good in effect. According to the moxibustion instrument, multiple moxibustion methods are combined for use, and the action effect of moxibustion on the human body is improved. The moxibustion instrument is provided with the backflow type smoke filtering cover, so that emission of smoke dust can be reduced.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention relates to a novel moxibustion instrument, belonging to the technical field of moxibustion. Background Art

[0002] Moxibustion is a traditional Chinese medicine therapy. Moxibustion mainly works by burning moxa wool, moxa cones or moxa sticks made of moxa leaves. The heat generated by the moxa stimulates the acupuncture points or specific parts of the human body to stimulate the activity of meridian qi to adjust the disordered physiological and biochemical functions of the human body, thereby achieving the purpose of preventing and curing diseases.

[0003] Moxibustion requires professional personnel to operate, and it is difficult for ordinary people to master the correct operation method. Moreover, during the moxibustion process, it is necessary to always pay attention to the burning of the moxa, adjust the position and replace it in time, and the operation is relatively cumbersome. The correct operation method during moxibustion is the guarantee to maximize the effect of moxibustion.

[0004] The moxibustion instrument is an instrument that can perform automated moxibustion. It can perform moxibustion through automated control, so that ordinary people can also perform moxibustion at home.

[0005] However, whether it is manual moxibustion by professionals or moxibustion by a moxibustion device, there are some problems: Traditional moxibustion operations have safety risks (such as burns and fire risks).

[0006] Smoke pollution issues affect user experience and indoor environment.

[0007] Linear filtration of smoke to eliminate the problem of impurities and pollution.

[0008] Just to control smoking, the moxa cannot be fully burned and the moxibustion effect is poor.

[0009] Active adsorption of moxa smoke cannot utilize moxa smoke (the smoke is regarded as a carrier of the herbal properties of moxa).

[0010] Temperature control relies on manual experience and lacks precision.

[0011] Positioning requires professional operation and is inconvenient in home scenarios.

[0012] Professionals can only perform two-action moxibustion at most (1. hanging moxibustion + sparrow pecking, 2. hanging moxibustion + rotation, 3. hanging moxibustion + fixed moxibustion).

[0013] The moxibustion instrument can only perform a single moxibustion method, which can only perform sparrow pecking moxibustion alone and rotary moxibustion alone; it cannot perform rotary moxibustion + sparrow pecking moxibustion at the same time. Summary of the invention

[0014] The purpose of the present invention is to provide a novel moxibustion instrument to solve the moxibustion technique problem of the moxibustion instrument and the pollution problem of insufficient smoke filtration.

[0015] To achieve the above object, the technical solution adopted by the present invention is as follows: A novel moxibustion instrument, the moxibustion instrument includes a rotary telescopic mechanism. Through the rotary telescopic mechanism, the rotary telescopic mechanism drives the moxa stick to perform rotary telescopic movement, realizing the moxibustion methods of rotary moxibustion and pecking moxibustion simultaneously, and can also perform suspended moxibustion.

[0016] A further improvement of this technical solution is that the rotary telescopic mechanism is driven by a DC motor.

[0017] A further improvement of this technical solution is that the used moxibustion instrument is provided with a reflux type smoke filter hood; the reflux type smoke filter hood includes an inner hood body, a middle hood body and an outer hood body which are sequentially sleeved; the ends of the middle hood body and the inner hood body are provided with smoke outlets; the smoke flows back and forth in the reflux type smoke filter hood; a filter cotton is arranged between the middle hood body and the outer hood body.

[0018] A further improvement of this technical solution is that the upper end of the outer hood body is communicated with the outer flue and is provided with a blower; the inner hood body, the middle hood body and the outer hood body are made of food-grade stainless steel.

[0019] A further improvement of this technical solution is that the lower end of the outer hood body is provided with a food-grade silica gel heat insulation and anti-scalding rubber pad.

[0020] A further improvement of this technical solution is that the blower and the rotary telescopic mechanism share a DC motor.

[0021] A further improvement of this technical solution is that the rotary telescopic mechanism includes a push rod, a positioning ring, a positioning pin, an outer protective shell and a power mechanism; a feed groove is arranged on the surface of the push rod; one end of the positioning pin is installed on the positioning ring, and the other end is matched with the feed groove; the power mechanism drives the push rod to rotate and perform reciprocating linear motion at the same time; the feed groove is a spiral groove; two spiral grooves with opposite spiral directions are arranged; the two ends of the two spiral grooves are communicated through a transition section; through the cooperation of the positioning pin and the feed groove, the push rod performs reciprocating linear motion; the driving part of the power mechanism is sleeved and matched with the push rod for power transmission.

[0022] A further improvement of this technical solution is that the transition section is a straight groove; the positioning pin includes an integral cylindrical positioning section and a sliding ring section; the cylindrical positioning section is rotatably installed in the rotating groove of the positioning ring; the sliding ring section is located in the feed groove.

[0023] A further improvement of this technical solution is that the push rod is a hollow non-circular hole structure; the driving part of the power mechanism includes a driving rod, and the driving rod extends into the hollow structure of the push rod.

[0024] Due to the adoption of the above technical solution, the technical effects obtained by the present invention are as follows: The moxibustion instrument of the present invention is provided with a rotary telescopic mechanism, which drives the moxa stick to perform the actions of rotation and telescoping simultaneously, enabling the synchronous realization of rotary moxibustion and pecking moxibustion, and improving the effect of moxibustion. When the moxibustion instrument is working, while the rotary telescopic mechanism is working, the oxygen supply is increased, so that the moxa floss burns to improve the utilization rate of the effective components of mugwort. At the same time, the oxygen supply is controlled by the rate of rotation and telescoping, and then the combustion temperature of the moxa stick is controlled, and the effect of moxibustion can be improved by an appropriate temperature.

[0025] The reflux type smoke filter hood set in the moxibustion instrument of the present invention enables the flue gas to move in a folded-back manner, and realizes the settlement of fine dust particles during the slow movement process, thereby realizing smokeless treatment and reducing the PM2.5 emission. The reflux type smoke filter hood is used to realize smoke control and smoke reduction, which is beneficial to the popularization and application of the moxibustion instrument.

[0026] The rotary telescopic mechanism of the present invention is provided with a push rod, and a feed groove is arranged on the surface of the push rod. At the same time, a matching structure of a positioning ring and a positioning pin is provided. Driven by the power mechanism; the cooperation of the positioning pin and the feed groove realizes the guiding and limiting of the push rod, so that the push rod can perform reciprocating linear movement up and down while rotating, thereby realizing rotary moxibustion and pecking moxibustion externally, and improving the effect of moxibustion.

[0027] The power mechanism of the rotary telescopic mechanism of the present invention has a motor, and the motor is externally connected with a driving rod; the push rod is set as a hollow structure, and through the sleeve fit of the push rod and the driving rod, the push rod and the driving rod always maintain a sleeve relationship, so that power transmission can be realized when the push rod performs reciprocating linear movement, and the normal rotation of the push rod is ensured.

[0028] The blower for smoke filtration of the present invention and the rotary telescopic mechanism share the same power mechanism. Since the same power mechanism is used, the setting of the power mechanism is reduced, and space is saved. Description of the Drawings

[0029] Figure 1 is a schematic diagram of the rotary telescopic mechanism of the present invention; Figure 2 is the front view of the rotary telescopic mechanism of the present invention; Figure 3 is a schematic diagram of the cooperation between the push rod and the driving rod of the present invention; Figure 4 is a schematic diagram of the push rod of the present invention; Figure 5 is a sectional view of the rotary telescopic mechanism of the present invention; Figure 6 is a schematic diagram of the positioning pin of the present invention; Figure 7 is a partial schematic diagram of the positioning ring of the present invention; Figure 8It is a schematic diagram of another part of the positioning ring of the present invention; Figure 9 It is a schematic diagram of the reflux type smoke filter hood of the present invention; Among them, 1. Push rod, 2. Positioning ring, 3. Positioning pin, 3-1. Cylindrical positioning section, 3-2. Slip ring section, 4. Outer protective shell, 5. Feed groove, 6. Transition section, 7. Inner cover body, 8. Middle cover body, 9. Outer cover body, 10. Drive rod, 11. Filter cotton. Specific embodiments

[0030] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the 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 of the present invention.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection 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.

[0033] The present invention is a new type of moxibustion instrument, which can drive the moxa stick to rotate while performing linear telescopic movement. By using this rotation and telescopic mechanism, it is possible to perform rotating moxibustion and pecking moxibustion at the same time. And it can also perform moxibustion methods such as suspended moxibustion.

[0034] The moxibustion instrument includes a rotation and telescopic mechanism, which drives the moxa stick to rotate and perform linear telescopic movement at the same time, so as to realize the moxibustion methods of rotating moxibustion and pecking moxibustion at the same time. The rotation and telescopic mechanism stops the moxa stick at a specific position for suspended moxibustion.

[0035] During use, the moxa stick is installed in the moxa stick tube. The moxa stick tube can be magnetically connected to the rotation and telescopic mechanism to achieve convenient loading and unloading. The moxa stick tube is made of ferromagnetic material. After the moxa stick is installed into the moxa stick tube, the moxa stick tube is magnetically linked to the rotation and telescopic mechanism. A magnet is provided at one end of the push rod of the rotation and telescopic mechanism to achieve magnetic connection.

[0036] The rotary telescopic mechanism is driven by a DC motor. The DC motor used is a DC iodine solution with micro-power intelligent control, which can perform precise speed control when driving the rotary telescopic mechanism. While the rotary telescopic mechanism is working, the oxygen supply is controlled to improve the utilization rate of the effective components of mugwort by burning moxa floss. At the same time, the oxygen supply is controlled by the rate of rotary telescopic movement, and then the combustion temperature of the moxa stick is controlled. The temperature control error is ±1°C, thus achieving a good moxibustion effect.

[0037] To solve the problem of smoke during moxibustion, the moxibustion instrument is also provided with a reflux type smoke filter hood to improve the smoke filtering effect through the reflux type smoke filter hood. The above-mentioned rotary telescopic mechanism is located inside the reflux type smoke filter hood and works.

[0038] As Figure 9 shown, the reflux type smoke filter hood includes an inner hood body 7, a middle hood body 8 and an outer hood body 9 which are sleeved in sequence. A smoke outlet is arranged at the inner end of the inner hood body 7, and a smoke outlet is arranged at the outer end of the middle hood body 8. A smoke outlet is arranged at the upper end of the outer hood body 9. The smoke enters the middle hood body 8 from the inner hood body 7, enters the outer hood body 9 from the middle hood body 8, and then is discharged from the outer hood body 9; the overall flow path of the smoke presents a folded trajectory. At the same time, a filter cotton 11 is arranged between the middle hood body 8 and the outer hood body 9 to improve the filtering effect. Because the smoke flows in a folded manner and the flow speed is slow, during the flow process, the dust particles in the smoke settle, and the filtering effect is good.

[0039] A smoke outlet is arranged at the upper end of the outer hood body 9 of the reflux type smoke filter hood, and the smoke outlet is communicated with the outer flue, and a fan is arranged at this position.

[0040] The inner hood body 7, the middle hood body 8 and the outer hood body 9 of the reflux type smoke filter hood are made of food-grade stainless steel. At the lower end of the outer hood body 7 of the reflux type smoke filter hood, that is, the end in contact with the human skin, a food-grade silica gel heat insulation and anti-scalding sleeve can be arranged to ensure the safety of human use and realize the synchronous release of heat insulation, anti-scalding heat radiation and medicinal effects.

[0041] Through the reflux type smoke filter hood, the moxibustion instrument realizes that while utilizing the moxa smoke, it is not disturbed by the smoke. After utilizing the medicinal effects in the moxa smoke, the moxa smoke is treated by the reflux type smoke filter hood and then discharged.

[0042] The fan on the reflux type smoke filter hood is driven by a power mechanism, and moreover, it can share the power mechanism with the rotary telescopic mechanism through multiple output ends of a speed reducer. The output shaft of the speed reducer is connected and driven with the fan through a connecting shaft. The above-mentioned rotary telescopic mechanism is installed inside the reflux type smoke filter hood, and the fan and the rotary telescopic mechanism are basically on the upper and lower sides of the speed reducer. The speed reducer is provided with output ends on both sides to realize the power connection with the fan and the rotary telescopic mechanism. Since the same power mechanism is used, the setting of the power mechanism is reduced, saving space.

[0043] As Figure 1 , Figure 2 , Figure 5 shown, the rotary telescopic mechanism mainly includes a push rod 1, a positioning ring 2, a positioning pin 3, an outer protective shell 4, and a power mechanism. The push rod 1 is a component for pushing the moxa stick. A feed groove 5 is provided on the surface of the push rod 1, and the movement is achieved through the cooperation of the feed groove 5 and the power mechanism. The positioning pin 3 can cooperate with the feed groove 5 on the push rod, enabling the push rod 1 to move along a preset trajectory. The positioning ring 2 is used to install the positioning pin 3. There is a positioning groove on the positioning ring 2. One end of the positioning pin 3 is installed in the positioning groove of the positioning ring 2, and the other end of the positioning pin 3 cooperates with the feed groove 5. The push rod 1 mainly moves and rotates within the outer protective shell 4. The positioning ring 2 is generally of a split structure, specifically as Figure 7 , Figure 8 shown.

[0044] The power mechanism drives the push rod 1 to rotate. Due to the guiding and limiting effect of the positioning pin 3 on the feed groove 5, the push rod 1 simultaneously performs a reciprocating linear motion. Thus, the push rod 1 drives the moxa stick to simultaneously perform a reciprocating linear motion and a rotational motion, realizing pecking moxibustion while performing rotational moxibustion.

[0045] As Figure 3 , Figure 4 shown, in a specific implementation, the feed groove 5 is set as a spiral groove; and two spiral grooves with opposite helix directions are provided. The two ends of the two spiral grooves correspond to each other, and then the two are connected through a transition section 6, enabling the two spiral grooves to form a closed groove that is connected end to end. Thus, the push rod 1 can, under the cooperation of the positioning pin 3, achieve a reciprocating linear movement. Here, the transition section 6 is generally set as a straight groove, which can smoothly complete the transition from one spiral groove to the other.

[0046] The push rod 1 of the rotary telescopic mechanism needs to perform a rotational motion. The push rod 1 is driven to rotate by the power mechanism. At the same time, the push rod 1 also performs a reciprocating linear movement. Therefore, the driving part of the power mechanism and the push rod 1 have a non-rigid connection structure, but a sleeve-fitting structure is used for power transmission. That is to say, the push rod 1 is set as a hollow non-circular hole structure, and then the driving part of the power mechanism is inserted into the hollow structure of the push rod 1. Specifically, the driving part of the power mechanism includes a driving rod 10. The driving rod 10 is connected to the motor of the power mechanism. The cross-section of the driving rod 10 is in a shape that can be adapted to the non-circular hole structure of the push rod 1. Thus, the driving rod 10 can be inserted into the hollow structure of the push rod 1. When the driving rod 10 rotates, it can transmit the torque to the push rod 1, causing the push rod 1 to also rotate. The cross-section of the driving rod 10 can generally be square or regular polygon. The hollow structure of the push rod 1 is also a corresponding square or regular polygon. Specifically as Figure 3 ,Figure 4 shown.

[0047] The positioning pin 3 of the rotating and telescopic mechanism plays an important role in cooperating with the feed slot 5. Figure 6 As shown, the positioning pin 3 includes an integrally formed cylindrical positioning section 3-1 and a slip ring 3-2. Among them, the cylindrical positioning section 3-1 is a cylindrical structure, and the cylindrical positioning section 3-1 is rotatably installed in the rotating groove of the positioning ring 2. After the cylindrical positioning section 3-1 is installed on the positioning ring 2, it can rotate around the axis. The slip ring section 3-2 is a slider structure, which can be regarded as a small section of a circular ring. The slip ring section 3-2 is located in the feed groove 5, and the slip ring section 3-2 cooperates with the feed groove 5. The slip ring section 3-2 positions and guides the propulsion rod 1. The cooperation between the slip ring section 3-2 and the feed groove 5 enables the propulsion rod 1 to rotate and move up and down.

[0048] The rotary telescopic mechanism is provided with a power mechanism to provide the power for movement, and the power mechanism is a mechanism in which a motor cooperates with a reducer, and the motor can reduce the speed after passing through the reducer. The motor is preferably a DC motor. The output shaft of the motor is connected to the driving rod 10.

[0049] The rotating and telescopic mechanism, through the cooperation between the feed groove on the propulsion rod and the positioning ring, can realize rotation and simultaneous up and down reciprocating linear movement under the drive of the power mechanism, thereby realizing external rotary moxibustion and simultaneous pecking moxibustion, thereby improving the effect of moxibustion.

[0050] The driving rod of the power mechanism of the rotating and telescopic mechanism can realize power transmission when the propulsion rod moves back and forth in a straight line through the sleeve cooperation with the propulsion rod, thereby ensuring the normal rotation of the propulsion rod.

[0051] The above-mentioned rotating and telescopic mechanism is applied to the moxibustion apparatus, and due to the characteristics of odd motion, it is possible to realize rotating moxibustion and pecking moxibustion at the same time.

[0052] The moxibustion instrument uses a rotating telescopic mechanism, which can realize rotating moxibustion and pecking moxibustion at the same time, combining the two moxibustion methods to improve the effect of moxibustion on the human body. The rotating telescopic mechanism is driven by a DC motor to achieve precise motion control, thereby achieving control of the oxygen supply and thus control of the moxibustion temperature. The moxibustion instrument is equipped with a reflux smoke filter hood, which can slowly settle the smoke and filter out the smoke after effectively utilizing the medicinal effect of the moxa smoke, reduce smoke emissions, and improve the air environment during use. The moxibustion instrument has a good comprehensive use effect, which is conducive to the promotion and use of the moxibustion instrument.

[0053] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A new type of moxibustion instrument, characterized in that: The moxibustion instrument comprises a rotating and telescopic mechanism, through which the rotating and telescopic mechanism drives the moxibustion stick to perform rotating and telescopic movements, thereby realizing the moxibustion methods of rotating moxibustion and sparrow pecking moxibustion at the same time, and can also perform suspended moxibustion.

2. The novel moxibustion instrument according to claim 1, characterized in that: The rotating and telescopic mechanism is driven by a DC motor.

3. The novel moxibustion instrument according to claim 2, characterized in that: The moxibustion instrument used is provided with a reflux smoke filter cover; the reflux smoke filter cover comprises an inner cover body (7), a middle cover body (8) and an outer cover body (9) which are sequentially mounted; smoke outlets are provided at the ends of the middle cover body (8) and the inner cover body (7); smoke flows in a reflux manner in the reflux smoke filter cover; and filter cotton (11) is provided between the middle cover body (8) and the outer cover body (9).

4. The novel moxibustion instrument according to claim 3, characterized in that: The upper end of the outer cover body (9) is communicated with the external flue and is provided with a fan; the inner cover body (7), the middle cover body (8) and the outer cover body (9) are made of food-grade stainless steel.

5. The novel moxibustion instrument according to claim 3 is characterized in that: A food-grade silicone heat-insulating and anti-scalding rubber pad is provided at the lower end of the outer cover (9).

6. The novel moxibustion apparatus according to claim 4, characterized in that: The fan and the rotating and telescopic mechanism share a DC motor.

7. The novel moxibustion apparatus according to any one of claims 1 to 6, characterized in that: The rotary telescopic mechanism comprises a propulsion rod (1), a positioning ring (2), a positioning pin (3), an outer protective shell (4) and a power mechanism; a feed groove (5) is arranged on the surface of the propulsion rod (1); one end of the positioning pin (3) is mounted on the positioning ring (2), and the other end cooperates with the feed groove (5); the power mechanism drives the propulsion rod (1) to rotate and simultaneously perform reciprocating linear motion; the feed groove (5) is a spiral groove; two spiral grooves with opposite rotation directions are arranged; the two ends of the two spiral grooves are connected via a transition section (6); through the cooperation of the positioning pin (3) and the feed groove (5), the propulsion rod (1) performs reciprocating linear motion; the driving part of the power mechanism cooperates with the propulsion rod (1) to perform power transmission.

8. The novel moxibustion apparatus according to claim 7, characterized in that: The transition section (6) is a straight groove; the positioning pin (3) comprises an integrated cylindrical positioning section (3-1) and a slip ring (3-2) section; the cylindrical positioning section (3-1) is rotatably mounted in the rotation groove of the positioning ring (2); and the slip ring section (3-2) is located in the feed groove (5).

9. The novel moxibustion apparatus according to claim 8, characterized in that: The propulsion rod (1) is a hollow non-circular hole structure; the driving part of the power mechanism comprises a driving rod (10), and the driving rod (10) extends into the hollow structure of the propulsion rod (1).

10. The novel moxibustion apparatus according to claim 9, characterized in that: The power mechanism is a mechanism in which a motor cooperates with a reducer; the motor is a DC motor; the output shaft of the motor is connected to a drive rod (10); the cross section of the drive rod (10) is a shape that can be adapted to the non-circular hole structure of the propulsion rod (1), and the drive rod (10) extends into the hollow structure of the propulsion rod.