Electric weeding machine

Abstract

The utility model discloses an electric weed pulling machine which comprises a holding handle, a weed pulling device and a weed discharging device are connected to the holding handle, the weed pulling device comprises a shell, a driving motor is arranged in the shell, a weed pulling assembly is arranged at the front end of a motor shaft of the driving motor, and a frame piece moving up and down is arranged in the shell. The upper end of the frame part is provided with a grass unloading device, the lower end of the frame part is provided with a hollow rotating shaft, the upper end of the hollow rotating shaft is connected to a motor shaft of the driving motor, and the lower end of the hollow rotating shaft is provided with a grass pulling assembly; a supporting piece is arranged between the frame piece and the hollow rotating shaft for connection, a back-and-forth moving assembly is arranged on the hollow rotating shaft, and a driving disc is arranged on the lower end face of the back-and-forth moving assembly. A structure for preventing the driving motor from moving up and down in the shell is designed, and weeding can be better carried out in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of garden electric tools, in particular to an electric weeding machine. Background Art

[0002] It is known that manual weeding, weeding with tools such as hoes and shovels, or chemical weeding by spraying drugs are often used in gardens. In order to reduce environmental pollution, reduce the labor intensity of manual weeding and improve weeding efficiency, some excavation tools specifically used for assisting weeding have emerged on the market. For example, a weeding machine disclosed in a Chinese utility model patent with the authorization announcement number CN216775910U includes a holding handle, a weeding device is connected to the holding handle, the weeding device includes a housing, a driving motor is arranged inside the housing, a power supply and a driving switch are arranged on the holding handle; the front end of the motor shaft of the driving motor is provided with a weeding assembly, the weeding assembly includes a fork head mounting seat sleeved outside the housing, a plurality of weeding fork heads are arranged on the fork head mounting seat, the front end of the motor shaft is fixedly provided with a driving disk, a plurality of driving grooves corresponding to the weeding fork heads are formed on the driving disk, the weeding fork heads penetrate and are clamped in the driving grooves, and when the driving motor rotates to drive the driving disk to rotate, the weeding fork heads and the fork head mounting seat can be driven to rotate; the grass unloading device includes a grass unloading push rod and a grass unloading push handle, and pushing the grass unloading push handle can drive the driving motor to move up and down in the housing. Although it is driven by motor power, the workload of the user is reduced, the working efficiency is improved, and point-to-point precise physical weeding is achieved. However, the lower end of the grass unloading push rod is connected to the driving motor, and pushing the grass unloading push handle can drive the driving motor to move up and down in the housing, so that the driving motor drives the driving disk to move up and down synchronously along the weeding fork heads. When working continuously (such as for more than 20 minutes), the driving motor moving up and down in the housing will cause the driving motor to fail to reset properly, resulting in poor weeding effect and inability to meet the use requirements. According to this situation, it is necessary to make improvements. Summary of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] Aiming at the deficiencies in the prior art, the utility model provides an electric weeding machine, which designs a structure to prevent the driving motor from moving up and down in the housing, and can better perform weeding during use, which is more conducive to meeting the use requirements.

[0005] (2) Technical Solutions to be Adopted

[0006] In order to achieve the above purpose, the technical solutions adopted by the utility model are as follows:

[0007] An electric weeding machine includes a holding handle, and a weeding device and a grass discharging device are connected to the holding handle. The weeding device includes a housing, a driving motor electrically connected to the holding handle is arranged inside the housing, a power supply and a driving switch for controlling the on-off of the driving motor are arranged on the holding handle, a weeding assembly is arranged at the front end of the motor shaft of the driving motor, a frame member that moves up and down is arranged inside the housing, the grass discharging device is arranged at the upper end of the frame member, and a hollow rotating shaft is arranged at the lower end of the frame member. The upper end of the hollow rotating shaft is connected to the motor shaft of the driving motor, and the weeding assembly is arranged at the lower end of the hollow rotating shaft. The grass discharging device includes a grass discharging push rod arranged on the holding handle, a grass discharging push handle is connected to the upper end of the grass discharging push rod, the lower end of the grass discharging push rod is connected to the frame member, a support member is connected between the frame member and the hollow rotating shaft, and a reciprocating motion assembly is arranged on the hollow rotating shaft, and a driving disc is arranged on the lower end surface of the reciprocating motion assembly.

[0008] Preferably, the reciprocating motion assembly includes a driving rod arranged inside the hollow rotating shaft, a reset member is arranged on the driving rod, the driving disc is arranged on the lower end surface of the driving rod, a stop piece is arranged at the upper end of the driving rod, one end surface of the stop piece is in contact with the reset member, and the other end surface of the stop piece is in contact with the lower end surface of the support member, and the reset member can be in contact with the driving disc.

[0009] Preferably, the stop piece and the driving rod are welded together.

[0010] Preferably, the reset member is a spring.

[0011] Preferably, pairs of openings are formed on the side surface of the hollow rotating shaft, and the openings are distributed along the axial direction of the hollow rotating shaft.

[0012] Preferably, the support member is a convex bearing.

[0013] Preferably, the frame member includes moving rods that move up and down in the housing and are distributed in pairs. The upper parts of the moving rods distributed in pairs are connected by an upper connecting frame, the grass discharging push rod is arranged on the upper connecting frame, the lower parts of the moving rods distributed in pairs are connected by a lower connecting member, and the support member is arranged on the lower connecting member. Return members are arranged on the moving rods distributed in pairs.

[0014] Preferably, track grooves for the up-and-down movement of the moving rods are arranged inside the housing.

[0015] Preferably, fixing sleeves are arranged on the moving rods distributed in pairs.

[0016] Preferably, blocking blocks for restricting the fixing sleeves are arranged inside the housing.

[0017] Preferably, the hollow rotating shaft includes a front end connected to the motor shaft of the driving motor, and the front end passes through the support member. A hollow shaft is provided on the lower end surface of the front end, and the reciprocating motion assembly is arranged inside the hollow shaft. A lower bearing is arranged on the weeding assembly.

[0018] (III) Technical effects to be achieved

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] First, a weeding assembly is provided at the front end of the motor shaft of the driving motor of the present utility model. A frame member that moves up and down is arranged inside the housing. A grass unloading device is arranged at the upper end of the frame member, and a hollow rotating shaft is arranged at the lower end of the frame member. The upper end of the hollow rotating shaft is connected to the motor shaft of the driving motor, and the lower end of the hollow rotating shaft is provided with a weeding assembly. The grass unloading device includes a grass unloading push rod arranged on the holding handle. The upper end of the grass unloading push rod is connected to a grass unloading push handle, and the lower end of the grass unloading push rod is connected to the frame member. A support member is connected between the frame member and the hollow rotating shaft, and a reciprocating motion assembly is arranged on the hollow rotating shaft. A driving disc is arranged on the lower end surface of the reciprocating motion assembly. Its structure is designed to prevent the driving motor from moving up and down inside the housing, and it can better perform weeding during use, which is more conducive to meeting the use requirements.

[0021] Second, a frame member that moves up and down is arranged inside the housing of the present utility model. A grass unloading device is arranged at the upper end of the frame member, and a hollow rotating shaft is arranged at the lower end of the frame member. The upper end of the hollow rotating shaft is connected to the motor shaft of the driving motor, and the lower end of the hollow rotating shaft is provided with a weeding assembly. The grass unloading device includes a grass unloading push rod arranged on the holding handle. The upper end of the grass unloading push rod is connected to a grass unloading push handle, and the lower end of the grass unloading push rod is connected to the frame member. A support member is connected between the frame member and the hollow rotating shaft, and a reciprocating motion assembly is arranged on the hollow rotating shaft. A driving disc is arranged on the lower end surface of the reciprocating motion assembly. This kind of structure enables the up and down movement of the reciprocating motion assembly promoted by the frame member and the driving of the hollow rotating shaft by the motor shaft of the driving motor to not affect each other, which is beneficial to realizing the weeding and grass unloading operations, meeting the use requirements, and has a reasonable design, a simple structure, and is also convenient for production, manufacturing and installation. Description of the drawings

[0022] Figure 1 It is a schematic structural diagram of the present utility model in the front view direction.

[0023] Figure 2 It is Figure 1 A sectional view taken along the A-A direction in

[0024] Figure 3 It is an overall schematic diagram of the present utility model.

[0025] Figure 4 Schematic diagram of the housing opening in the weeding device of the present utility model.

[0026] Figure 5 Schematic diagram of the assembly of the holding handle, weeding device, frame member, hollow rotating shaft and support member of the present utility model.

[0027] Figure 6 Schematic diagram of the cooperation between the reciprocating motion assembly of the hollow rotating shaft and the support member and the driving disk in the present utility model.

[0028] Figure 7 Schematic diagram of the cooperation between the reciprocating motion assembly, support member and lower connecting member of the present utility model.

[0029] Figure 8 Schematic diagram of the cooperation between the driving rod and the reset member of the present utility model.

[0030] Figure 9 Schematic diagram of the support member structure of the present utility model.

[0031] Figure 10 Schematic diagram of the hollow rotating shaft structure of the present utility model.

[0032] In the figure: 1, holding handle; 2, weeding device; 3, grass unloading device; 4, frame member; 5, hollow rotating shaft; 6, support member; 21, housing; 22, driving motor; 23, driving switch; 24, weeding assembly; 31, grass unloading push rod; 32, grass unloading push handle; 33, reciprocating motion assembly; 34, driving disk; 41, moving rod; 42, upper connecting frame; 43, lower connecting member; 44, return member; 51, front end; 52, hollow shaft; 241, mounting seat; 242, weeding fork head; 243, driving groove; 331, driving rod; 332, reset member; 333, retaining piece; 411, fixing sleeve. Detailed implementation manner

[0033] In the description of the present utility model, it should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0034] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined. The meaning of "several" is one or more, unless otherwise specifically defined.

[0035] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected to" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0036] To make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below through the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present utility model and do not limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0037] Embodiment 1: Refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7, An electric weeding machine, comprising a holding handle 1, a weeding device 2 and a grass unloading device 3 are connected to the holding handle 1. The weeding device 2 includes a housing 21. Inside the housing 21, there is a driving motor 22 electrically connected to the holding handle 1. A power source and a driving switch 23 for controlling the on / off of the driving motor 22 are provided on the holding handle 1. At the front end of the motor shaft of the driving motor 22, there is a weeding assembly 24. Inside the housing 21, there is a frame member 4 that moves up and down. At the upper end of the frame member 4, there is a grass unloading device 3, and at the lower end of the frame member 4, there is a hollow rotating shaft 5. The upper end of the hollow rotating shaft 5 is connected to the motor shaft of the driving motor 22, and the lower end of the hollow rotating shaft 5 is provided with a weeding assembly 24. By rotating the motor shaft of the driving motor 22 to drive the rotating shaft of the hollow rotating shaft 5, and then the hollow rotating shaft 5 rotates to drive the rotation of the weeding assembly 24, thus realizing the weeding operation. The grass unloading device 3 includes a grass unloading push rod 31 provided on the holding handle 1. The upper end of the grass unloading push rod 31 is connected to a grass unloading push handle 32, and the lower end of the grass unloading push rod 31 is connected to the frame member 4. A support member 6 is connected between the frame member 4 and the hollow rotating shaft 5. This setting is beneficial to keeping the hollow rotating shaft 5 able to rotate along with the rotation of the motor shaft of the driving motor 22. And on the hollow rotating shaft 5, there is a reciprocating motion assembly 33. On the lower end surface of the reciprocating motion assembly 33, there is a driving disk 34. The grass unloading push rod 31 can push the frame member 4 to move up and down in the housing 21, and then the frame member 4 makes the reciprocating motion assembly 33 move up and down on the hollow rotating shaft 5. The reciprocating motion assembly 33 will cause the driving disk 34 to move up and down, thereby realizing the axial discharge of the weeds and soil on the weeding assembly 24, and easily completing the grass unloading operation. In the present utility model, by avoiding the frequent up and down movement of the driving motor 22 in the housing 21, it is thus possible to prevent the situation that when the driving motor 22 moves up and down in the housing 21 during continuous operation (such as for more than 20 minutes continuously), the driving motor 22 cannot be reset in place, which may lead to poor weeding effect. This is also the key point of the present utility model. And in this example, a sleeve is provided outside the grass unloading push rod 31, the holding handle 1 is provided on the sleeve, the grass unloading push rod 31 axially reciprocates in the sleeve, and the sleeve is provided on the housing 21. This is convenient for implementation.

[0038] Embodiment 2: It can be described based on Embodiment 1, such as Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown in the figure, the reciprocating motion component 33 includes a driving disk 331 disposed inside the hollow rotating shaft 5. A reset member 332 is provided on the driving disk 331. A driving disk 34 is disposed on the lower end surface of the driving disk 331. A retaining piece 333 is provided on the upper end of the driving disk 331. One end surface of the retaining piece 333 is in contact with the reset member 332, and the other end surface of the retaining piece 333 is in contact with the lower end surface of the support member 6. The reset member 332 can be in contact with the driving disk 34, which is conducive to compressing the reset member 332. In this way, the grass unloading push rod 31 can push the frame member 4 to move up and down in the housing 21. The support member 6 will move up and down in the housing 21 along with the frame member 4. Since the other end surface of the retaining piece 333 is in contact with the lower end surface of the support member 6, when the support member 6 pushes the retaining piece 333 to move downward, the retaining piece 333 will also cause the driving disk 331 to move downward. The driving disk 331 will cause the driving disk 34 to move downward, thereby realizing the axial discharge of the weeds and soil on the weeding component 24, easily completing the grass unloading operation, and then the retaining piece 333 is restored to the initial position by the reset member 332, which is conducive to realizing the next operation. In this embodiment, the retaining piece 333 and the driving disk 331 are welded together, which is beneficial to improving the connection stability between the two and also beneficial to the retaining piece 333 and the driving disk 331 to return to the initial position. It can be seen that in the present utility model, through the combination of the frame member 4 and the support member 6, the retaining piece 333 and the driving disk 331 can realize the up and down movement of the driving disk 34 without interfering with the rotation of the motor shaft of the driving motor 22 driving the hollow rotating shaft 5 and then driving the rotation of the weeding component 24. In this way, the operations of weeding and grass unloading can be realized, which is beneficial to meeting the user's usage requirements.

[0039] Among them, the reset member 332 is a spring, which has a wide source and is convenient for implementation.

[0040] As Figure 6 and Figure 10 shown, among them, the side surface of the hollow rotating shaft 5 is provided with paired openings distributed along the axial direction of the hollow rotating shaft 5, which is conducive to the up and down movement of the retaining piece 333.

[0041] Embodiment 3: It can be described on the basis of Embodiment 2. As Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 9As shown, the support member 6 adopts a convex bearing, which has one side protruding and contacts the baffle 333. This arrangement is not only conducive to the convex bearing driving the baffle 333 to move downward, which is conducive to the downward movement of the reciprocating motion component 33, but also helps to reduce the friction between the convex bearing and the baffle 333, thereby increasing the service life of the convex bearing and enhancing the rigidity. If a traditional bearing end face is horizontal, the wear of the bearing end face and the baffle 333 during long-term movement will cause loss, which may make the bearing thinner and thinner, which is not conducive to normal use.

[0042] Example 4: This can be explained based on Example 1, Example 2, or Example 3. Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the frame member 4 includes movable rods 41 that move up and down in the housing 21 and are distributed in pairs. The upper portions of the movable rods 41 distributed in pairs are connected by an upper connecting frame 42, and the upper connecting frame 42 is provided with a grass unloading push rod 31. The lower portions of the movable rods 41 distributed in pairs are connected by a lower connecting member 43, and the lower connecting member 43 is provided with a support member 6. The movable rods 41 distributed in pairs are all provided with a return member 44. This arrangement is reasonable, simple in structure, and easy to manufacture. It is more conducive to achieving the up and down movement of the frame member 4 in the housing 21 and is conducive to avoiding the up and down movement of the drive motor 22 in the housing 21. It is further explained that a track groove for the movable rods 41 to move up and down is provided in the housing 21. This arrangement is more conducive to the up and down movement of the movable rods 41 in the housing 21.

[0043] like Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7 As shown, the return member 44 is a spring, which facilitates the return of the paired movable rods 41. Furthermore, each paired movable rod 41 is provided with a fixing sleeve 411, which facilitates the upper connecting frame 42 to press the spring downward. The fixing sleeve 411 allows the movable rod 41 to return to its original position after the spring is compressed due to the spring's rebound force. Furthermore, a blocking block is provided within the housing 21 to limit the fixing sleeve 411. This design is rational and easy to implement. In this example, the blocking block is located on the track groove, and the blocking block and the track groove are integrally formed, making the design rational and easy to implement.

[0044] like Figure 2 、 Figure 4 、 Figure 5 、 Figure 6 and Figure 7As shown, among them, the lower connecting member 43 is provided with a mounting hole in the middle for mounting the support member 6. This kind of setting is reasonable and easy to implement, and this kind of setting will not affect the rotation of the hollow rotating shaft 5 driven by the rotation of the motor shaft on the driving motor 22. In this embodiment, the lower connecting member 43 includes a middle cylinder and ears arranged on both sides of the middle cylinder. The support member 6 is arranged in the middle cylinder, and the ears are used to connect the corresponding moving rods 41. This kind of setting is beneficial to realize the up and down movement of the lower connecting member 43 promoted by the moving rod 41. Among them, the middle cylinder and the ears on both sides of the middle cylinder are integrally formed, greatly improving the structural strength.

[0045] Embodiment 5: It can be described on the basis of Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4. The hollow rotating shaft 5 includes a front end portion 51 connected to the motor shaft of the driving motor 22, and the front end portion 51 passes through the support member 6. A hollow shaft 52 is provided on the lower end surface of the front end portion 51. A reciprocating motion assembly 33 is arranged inside the hollow shaft 52, and a lower bearing (not marked in the figure) is arranged on the weeding assembly 24. This is more beneficial to the rotation of the weeding assembly 24 for weeding operations. Further explanation, the front end portion 51 and the hollow shaft 52 are integrally formed, greatly improving the structural strength and operating stability.

[0046] Embodiment 6: It can be described on the basis of Embodiment 1 or Embodiment 2 or Embodiment 3 or Embodiment 4. As Figure 10 shown, the weeding assembly 24 includes a mounting seat 241 arranged on the hollow rotating shaft 5. The mounting seat 241 rotates inside the housing 21. A plurality of weeding fork heads 242 are arranged on the mounting seat 241. In this example, three weeding fork heads 242 are adopted. This kind of setting is reasonable, convenient for production and manufacturing, and also beneficial to realize the weeding operation. Further explanation, a plurality of driving grooves 243 corresponding to the weeding fork heads 242 are provided on the driving disk 34. The weeding fork heads 242 are inserted and clamped in the driving grooves 243, so that the driving disk 34 rotates with the hollow rotating shaft 5, and the driving disk 34 can move up and down axially relative to the weeding fork heads 242 alone, which is beneficial to push the weeds and soil wound on the weeding fork heads 242 axially, so that the weeds are separated from the weeding fork heads 242 to complete the unloading operation, and the next weeding operation can be carried out.

[0047] In order to make the unloading push rod 31 return better in the present utility model, a spring can also be provided, which is more beneficial to the convenience of the user's operation and is not marked in the figure.

[0048] When the weeding operation needs to be carried out for the present utility model, hold the holding handle 1 with hand, align the weeding fork head 242 with the soil position at the root of the weed and insert it downward, then press the drive switch 23 on the holding handle 1. The activation of the drive switch 23 causes the drive motor 22 to start. Then, the motor shaft of the drive motor 22 rotates, and the motor shaft of the drive motor 22 causes the hollow rotating shaft 5 to rotate. The rotation of the hollow rotating shaft 5 causes the mounting seat 241 and the reciprocating motion assembly 33 to rotate synchronously. In this way, the weeding fork head 242 on the mounting seat 241 rotates synchronously. The continuous rotation of the weeding fork head 242 makes the weed and the soil attached to the root firmly screwed and wound around the weeding fork head 242. Then, the drive switch 23 can be turned off to stop the rotation of the motor shaft of the drive motor 22 and pull the weeding fork head 242 upward. At this time, the weeding fork head 242 brings out the weed and the soil together from the ground to complete the weeding step. In this way, only a small pit is left in the area where the weed originally grew. Then, move the weeding machine to the space for placing the weed, and then push down the weed unloading push handle 12. The weed unloading push handle 12 pushes the weed unloading push rod 31, and the weed unloading push rod 31 will push the frame member 4 to move downward in the housing 21. The frame member 4 drives the drive disk 331 to move axially downward in the hollow rotating shaft 5 through the retaining piece 333. The drive disk 331 causes the drive disk 34 to move axially downward relative to the weeding fork head 242 alone. Therefore, when moving downward, the weed and the soil wound around the weeding fork head 242 can be axially discharged along the weeding fork head 242, so that the weed is separated from the weeding fork head 242 to complete the weed unloading operation. Next, release the pressure on the weed unloading push handle 12. Under the elastic force of the return member 44 in the frame member 4 and the reset member 332 in the reciprocating motion assembly 33, push up the retaining piece 333 and the frame member 4. The frame member 4 drives the weed unloading push rod 31 and the weed unloading push handle 12 to move upward and reset, and returns to the initial state to perform the next weeding operation.

[0049] The standard parts used in this application document can all be purchased from the market. The specific connection methods of each part all adopt conventional means such as mature housings and bearings in the prior art. The drive motor, switch and internal components of the power supply all adopt conventional models in the prior art, and their internal structures belong to the prior art structures. Workers can complete the normal operation of them according to the prior art manual. Coupled with the circuit connection adopting the conventional connection method in the prior art, no specific description will be made here.

[0050] It should be noted that although the above-mentioned embodiments have been described in this article, the patent protection scope of the present utility model is not limited thereby. Therefore, based on the innovative concept of the present utility model, the changes and modifications made to the embodiments described in this article, or the equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present utility model.

Claims

1. An electric weeding machine, comprising a holding handle (1), a weeding device (2) and a grass discharging device (3) are connected to the holding handle (1), the weeding device (2) includes a housing (21), a driving motor (22) electrically connected to the holding handle (1) is arranged inside the housing (21), a power source and a driving switch (23) for controlling the on-off of the driving motor (22) are arranged on the holding handle (1), a weeding assembly (24) is arranged at the front end of the motor shaft of the driving motor (22), and it is characterized in that: Inside the housing (21), there is a frame member (4) that moves up and down. The unloading device (3) is provided at the upper end of the frame member (4). And at the lower end of the frame member (4), there is a hollow rotating shaft (5). The upper end of the hollow rotating shaft (5) is connected to the motor shaft of the driving motor (22). The lower end of the hollow rotating shaft (5) is provided with the weeding assembly (24). The unloading device (3) includes an unloading push rod (31) provided on the holding handle (1). The upper end of the unloading push rod (31) is connected to an unloading push handle (32). The lower end of the unloading push rod (31) is connected to the frame member (4). A support member (6) is connected between the frame member (4) and the hollow rotating shaft (5). And on the hollow rotating shaft (5), there is a reciprocating motion assembly (33). The lower end surface of the reciprocating motion assembly (33) is provided with a driving disc (34).

2. The electric weeding machine according to claim 1, characterized in that: The reciprocating motion assembly (33) includes a driving rod (331) provided inside the hollow rotating shaft (5). A reset member (332) is provided on the driving rod (331). The lower end surface of the driving rod (331) is provided with the driving disc (34). And at the upper end of the driving rod (331), there is a retaining piece (333). One end surface of the retaining piece (333) is in contact with the reset member (332). And the other end surface of the retaining piece (333) is in contact with the lower end surface of the support member (6). The reset member (332) can be in contact with the driving disc (34).

3. The electric weeding machine according to claim 2, characterized in that: The retaining piece (333) is welded to the driving rod (331).

4. The electric weeding machine according to claim 2, characterized in that: Pairs of openings are formed on the side surface of the hollow rotating shaft (5). The openings are distributed along the axial direction of the hollow rotating shaft (5).

5. The electric weeding machine according to claim 2, characterized in that: The support member (6) is a convex bearing.

6. The electric weeding machine according to claim 1 or 2 or 3 or 4 or 5, characterized in that: The frame member (4) includes moving rods (41) that move up and down inside the housing (21) and are distributed in pairs. The upper parts between the pairs of moving rods (41) are connected by an upper connecting frame (42). The unloading push rod (31) is provided on the upper connecting frame (42). The lower parts between the pairs of moving rods (41) are connected by a lower connecting member (43). And the support member (6) is provided on the lower connecting member (43). Return members (44) are provided on the pairs of moving rods (41).

7. The electric weeding machine according to claim 6, characterized in that: Inside the housing (21), there are track grooves for the moving rods (41) to move up and down.

8. The electric weeding machine according to claim 6, characterized in that: Fixed sleeves (411) are provided on the pairs of moving rods (41).

9. The electric weeding machine according to claim 8, wherein: Inside the housing (21), there are blocking blocks for restricting the fixed sleeves (411).

10. The electric weeding machine according to claim 1 or 2 or 3 or 4 or 5 or 7 or 8 or 9, characterized in that: The hollow rotating shaft (5) includes a front end portion (51) connected to the motor shaft of the driving motor (22). And the front end portion (51) passes through the support member (6). The lower end surface of the front end portion (51) is provided with a hollow shaft (52). The reciprocating motion assembly (33) is provided inside the hollow shaft (52). And a lower bearing is provided on the weeding assembly (24).

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