Garden cleaning equipment with protection function
The garden maintenance device incorporates a protective structure to alter the trajectory of ejected hard objects, addressing safety hazards by preventing direct ejection and ensuring user safety.
Patent Information
- Application Number
- CN202421996852.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-08-16
AI Technical Summary
During the cutting of forages in existing garden cleaning equipment, hard objects such as gravels may fly out of the discharge outlet due to high speed rotation, causing human injury.
A garden cleaning equipment with a barrier structure is designed. By setting a barrier structure at the discharge port, the linear flight path of the hard object is blocked to prevent the hard object from flying directly out of the discharge port, including a barrier structure composed of arches and blocking parts, and the flow of chips is accelerated in combination with the airflow generation device.
Effectively prevent hard objects such as gravel from flying out of the discharge port due to high-speed rotation, ensure safe operation, avoid human injuries, and achieve rapid discharge and collection of material chips.
Smart Images
Figure CN223094245U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of garden machinery, and particularly relates to a garden cleaning device with a protection function. Background Art
[0002] Garden equipment is a type of mechanical equipment used for maintaining and cleaning lawns, protecting plants such as flowers and trees. Garden equipment can replace most manual labor, thereby improving the work efficiency of related operations.
[0003] Garden equipment includes edge cutters, leaf blowers, lawn mowers, etc. Taking a lawn mower as an example, the lawn mower uses a cutting tool to cut the grass on the ground to generate grass clippings. Among them, the grass clippings are discharged out of the machine through a discharge port.
[0004] During the process of cutting grass, hard objects such as stones on the ground will inevitably enter the lawn mower along with the grass. When a stone collides with a high-speed rotating cutting tool, the stone will obtain a high kinetic energy. Thus, within a short distance, the stone will fly in an almost straight-line trajectory. If the flying direction of the stone is towards the discharge port, then the stone will be discharged from the discharge port at a high speed. If the discharge port is facing a person at this time, it is very likely to cause harm to the person. Summary of the Utility Model
[0005] The purpose of this application is to overcome the defects of the prior art and provide a garden cleaning device with a protection function to solve the problems in the prior art.
[0006] To solve the above problems, an embodiment of this application provides a garden cleaning device with a protection function, including a housing, a cutting device, and a blocking structure; the housing includes a cavity and a discharge port, and the cutting device is arranged in the cavity;
[0007] The cutting device is used to cut or crush the object to be cleaned to generate material chips;
[0008] The discharge port is used for discharging the material chips outside the housing;
[0009] The blocking structure is used to block the straight-line path that passes through the discharge port and points to the cutting device.
[0010] In a possible implementation manner, a conveying channel is arranged on the housing, and the conveying channel is used to convey the material chips. Among them, the discharge port is arranged at one end of the conveying channel.
[0011] In a possible implementation, the conveying channel includes a first inner side wall and a second inner side wall that are arranged opposite to each other; the first inner side wall and the second inner side wall are arranged in sequence along a first direction; wherein the first direction is parallel to the rotation axis of the cutting device;
[0012] Along the first direction, the first inner side wall is closer to the cutting device than the second inner side wall.
[0013] In a possible implementation manner, the blocking structure includes an arch, the arch is arranged on the first inner side wall, and a protruding direction of the arch faces the side where the second inner side wall is located; or / and,
[0014] The blocking structure includes a shielding portion, which is disposed on an end of the first inner side wall away from the discharge port, and extends toward a side away from the discharge port.
[0015] In a possible implementation manner, the blocking structure includes a blocking section; the blocking section is located on the second inner side wall, and the blocking section is arranged close to the discharge port;
[0016] The shielding section is perpendicular to the rotation axis of the cutting device, or the shielding section is inclined toward the side where the first inner side wall is located.
[0017] In a possible implementation, the delivery channel includes a third inner side wall and a fourth inner side wall that are arranged opposite to each other; the third inner side wall and the fourth inner side wall are arranged in sequence along a second direction; wherein the second direction is a radial direction of the cavity;
[0018] Along the second direction, the third inner side wall is closer to the cutting device than the fourth inner side wall;
[0019] The third inner side wall and the fourth inner side wall constitute the blocking structure; wherein, along the flow direction of the material chips in the conveying channel, the distance between the third inner side wall and the fourth inner side wall gradually increases.
[0020] In a possible implementation, an airflow generating device is disposed in the cavity, and the airflow generating device is used to generate an accelerated airflow to drive the chips to flow.
[0021] In a possible implementation, the cutting device and the airflow generating device are fixedly mounted on the same mounting shaft, wherein the mounting shaft is connected to a driving module, and the driving module is used to drive the mounting shaft to rotate.
[0022] In a possible implementation, the cutting device includes a plurality of connecting arms arranged in a circular array, and cutting teeth are provided on the connecting arms; the air flow generating device includes a turbo fan.
[0023] In a possible implementation, a collecting device is provided at the discharge port, and the collecting device is used to collect the chips.
[0024] The beneficial effects of this application include:
[0025] The garden cleaning device with a protection function proposed in this application includes a housing, a cutting device and a blocking structure. The housing includes a cavity and a discharge port, and the cutting device is arranged in the cavity. When the object to be cleaned is cut or crushed by the cutting device, chips will be generated. Among them, the chips are discharged out of the housing through the discharge port.
[0026] In this application, the blocking structure is used to block the straight-line path passing through the discharge port and pointing to the cutting device. This means that when the naked eye views through the discharge port and towards the position where the cutting device is located, the line of sight will be blocked by the blocking structure, so that the cutting device cannot be seen. Due to the reversibility of the path, any straight-line path drawn from any point on the cutting device and pointing towards the discharge port will also be blocked by the blocking structure. In this way, when a hard object such as a stone entering the cavity collides with the cutting device, even if the flying direction of the hard object points to the position of the discharge port, due to the existence of the blocking structure, the hard object will collide with the blocking structure during the flight towards the discharge port, thereby changing the movement speed and direction of the hard object, so as to prevent the hard object from flying out of the discharge port unobstructed, playing a role of safety protection. Description of the Drawings
[0027] In order to more clearly illustrate the technical solutions of the embodiments of this application, the following will briefly introduce the drawings required to be used in the embodiments. It should be understood that the following drawings only show some embodiments of this application, and therefore should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0028] Figure 1 Shows a schematic diagram of a garden device;
[0029] Figure 2 Shows Figure 1 the exploded view of the garden device in
[0030] Figure 3 Shows a longitudinal sectional view of a garden device;
[0031] Figure 4 Shows a transverse sectional view of a garden device;
[0032] Figure 5 shows Figure 1 a top view of the gardening equipment in
[0033] Figure 6 shows Figure 5 a cross-sectional view taken along line A-A in
[0034] Figure 7 shows Figure 1 a bottom view of the gardening equipment in
[0035] Figure 8 shows a first schematic diagram of a housing;
[0036] Figure 9 shows a schematic diagram of a material cutting device;
[0037] Figure 10 shows a schematic diagram of an air flow generating device;
[0038] Figure 11 shows a schematic diagram of a partition portion.
[0039] Description of main element symbols:
[0040] 10 - blocking structure; 11 - arch; 12 - shielding portion; 13 - shielding section; 100 - first chamber; 200 - second chamber; 210 - exhaust side; 300 - conveying channel; 301 - first inner wall; 302 - second inner wall; 303 - third inner wall; 304 - fourth inner wall; 310 - discharge port; 320 - inlet side; 410 - material cutting device; 411 - connecting arm; 412 - cutting teeth; 420 - air flow generating device; 500 - mixing area; 510 - included angle portion; 600 - housing; 610 - cavity; 620 - partition portion; 621 - notch; 622 - central hole; 630 - discharge pipe; 640 - positioning structure; 650 - mounting through hole; 700 - mounting shaft. Detailed implementation manners
[0041] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present application and should not be construed as a limitation to the present application.
[0042] In the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application 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. Therefore, it should not be construed as a limitation to the present application.
[0043] Embodiment
[0044] Refer to Figures 1-3 , in this embodiment, a garden cleaning device with a protective function is proposed, including a housing 600, a cutting device 410, and a blocking structure 10. The housing 600 includes a cavity 610 and a discharge port 310, and the cutting device 410 is disposed in the cavity 610. For the convenience of description, hereinafter, the garden cleaning device with a protective function will be simply referred to as a garden device.
[0045] The cutting device 410 is used to cut or crush the object to be cleaned to generate chips.
[0046] The discharge port 310 is used for discharging the chips outside the housing 600. A collecting device may be provided at the discharge port 310, and the collecting device is used to collect the chips. Among them, the collecting device includes a bag or a cylinder.
[0047] The blocking structure 10 is used to block the straight path passing through the discharge port 310 and pointing to the cutting device 410. This means that when the naked eye looks through the discharge port 310 and towards the position where the cutting device 410 is located, the line of sight will be blocked by the blocking structure 10, so that the cutting device 410 cannot be seen. Due to the reversibility of the path, any straight path drawn from any point on the cutting device 410 and towards the discharge port 310 will also be blocked by the blocking structure 10. Thus, when a hard object such as a stone that enters the cavity 610 collides with the cutting device 410, even if the flying direction of the hard object points to the position where the discharge port 310 is located, due to the presence of the blocking structure 10, the hard object will collide with the blocking structure 10 during the flight towards the discharge port 310, thereby changing the movement speed and direction of the hard object, and avoiding the hard object flying out of the discharge port 310 unobstructed, playing a role in safety protection. Figure 3 The straight arrow L in it is used to represent a straight path passing through the discharge port 310 and pointing to the cutting device 410.
[0048] Such as Figure 6As shown, in this embodiment, the housing 600 includes a discharge pipe 630, in which a conveying channel 300 is disposed. The conveying channel 300 is used to convey material chips, wherein the discharge port 310 is disposed at one end of the conveying channel 300. The other end of the conveying channel 300 faces the cavity 610.
[0049] like Figure 3 As shown, the conveying channel 300 includes a first inner side wall 301 and a second inner side wall 302 that are arranged opposite to each other. The first inner side wall 301 and the second inner side wall 302 are arranged in sequence along a first direction. The first direction is parallel to the rotation axis of the cutting device 410. Figure 3 The direction indicated by the arrow x is parallel to the first direction.
[0050] Along the first direction, the first inner side wall 301 is closer to the cutting device 410 than the second inner side wall 302 .
[0051] The blocking structure 10 includes an arch 11, which is disposed on the first inner side wall 301, and the protrusion direction of the arch 11 is toward the side where the second inner side wall 302 is located; or / and, the blocking structure 10 includes a shielding portion 12, which is disposed on an end of the first inner side wall 301 away from the discharge port 310, and one side of the shielding portion 12 extends toward the side away from the discharge port 310. Further, the other side of the shielding portion 12 can extend toward the inner wall of the conveying channel 300 and smoothly connect with the inner wall of the conveying channel 300, so that the chips can be smoothly guided to the inside of the conveying channel 300.
[0052] In this embodiment, the blocking structure 10 includes both an arch 11 and a shielding portion 12 .
[0053] Specifically, the blocking structure 10 further includes a shielding section 13, which is located on the second inner sidewall 302 and is disposed close to the discharge port 310. One end of the shielding section 13 close to the discharge port 310 is a part of the discharge port 310.
[0054] The shielding section 13 is perpendicular to the rotation axis of the cutting device 410, or the shielding section 13 is inclined toward the side where the first inner side wall 301 is located. Figure 3 In the embodiment, the shielding section 13 is inclined toward the side where the first inner side wall 301 is located.
[0055] Reference Figure 4 The conveying channel 300 further includes a third inner sidewall 303 and a fourth inner sidewall 304 which are arranged opposite to each other. The third inner sidewall 303 and the fourth inner sidewall 304 are arranged in sequence along the second direction, and the second direction is the radial direction of the cavity 610. Along the second direction, the third inner sidewall 303 is closer to the cutting device 410 than the fourth inner sidewall 304.
[0056] Among them, along the circumferential direction of the circumferential conveying channel 300, the first inner wall 301, the third inner wall 303, the second inner wall 302, and the fourth inner wall 304 are connected in sequence.
[0057] In other embodiments, the third inner wall 303 and the fourth inner wall 304 form a blocking structure 10. Among them, along the flow direction of the material chips in the conveying channel 300, the distance between the third inner wall 303 and the fourth inner wall 304 gradually increases.
[0058] As Figure 2 shown, in this embodiment, an air flow generating device 420 is arranged in the cavity 610, and the air flow generating device 420 is used to generate an accelerated air flow that drives the material chips to flow.
[0059] Referring to Figures 1-2 , and Figures 5-8 In this embodiment, the gardening equipment includes a first chamber 100, a second chamber 200, a conveying channel 300, a cutting device 410, and an air flow generating device 420. Among them, the first chamber 100, the second chamber 200, and the conveying channel 300 are all connected to a mixing area 500.
[0060] The cutting device 410 is used to cut or break the object to be cleaned, so as to generate material chips in the first chamber 100. Among them, the cutting device 410 is arranged in the first chamber 100; the objects to be cleaned include lawns, straws, leaves, and so on.
[0061] As Figure 9 shown, the cutting device 410 includes a plurality of connecting arms 411 arranged in a circular array, and cutting teeth 412 are arranged on the connecting arms 411. The number of the connecting arms 411 can be set as required, such as three, five, six, and so on. In this embodiment, the number of the connecting arms 411 is two.
[0062] The air flow generating device 420 is used to generate an accelerated air flow in the second chamber 200. Among them, the accelerated air flow flows through the mixing area 500 to the conveying channel 300. Among them, at least part of the air flow production device is arranged in the second chamber 200. As Figure 10 shown, in this embodiment, the air flow generating device 420 includes a turbo fan.
[0063] The mixing area 500 is used to mix the material chips and the accelerated air flow discharged from the second chamber 200 to form a gas-solid mixture.
[0064] The conveying channel 300 is used to convey the gas-solid mixture, thereby discharging the chips outside the device. A collection device may be provided at the discharge port 310 of the conveying channel 300, and the chips can be collected through the collection device. Among them, the collection device includes a bag body or a cylinder body, etc. An exhaust hole may be provided on the collection device for discharging air.
[0065] When the gardening device is working: the cutting device 410 will cut or break the object to be cleaned, thereby generating chips in the first chamber 100; the air flow generating device 420 will generate an accelerated air flow in the second chamber 200, where the air flow flows through the mixing area 500 to the conveying channel 300. In this process, based on Bernoulli's principle, under the action of the accelerated air flow, a negative pressure will be generated at the position of the first chamber 100 close to the mixing area 500, thereby quickly sucking the chips in the first chamber 100 into the mixing area 500; the chips entering the mixing area 500 are mixed with the accelerated air flow to form a gas-solid mixture. Among them, as the air flow flows, the gas-solid mixture flows into the conveying channel 300; finally, the gas-solid mixture is discharged outside the device through the conveying channel 300. This gardening device can quickly discharge the chips, thus avoiding the occurrence of chip blockage.
[0066] As Figure 2 shown, the gardening device further includes a housing 600, and a cavity 610 is provided inside the housing 600.
[0067] As Figure 6 shown, the first chamber 100 and the second chamber 200 are both located inside the cavity 610, and the first chamber 100 and the second chamber 200 are stacked, so that the space can be effectively utilized, making the overall structure of the device more compact and small. At the same time, it can also shorten the flow path of the chips, enabling the chips to be sucked into the mixing area 500 more quickly.
[0068] A partition 620 is provided inside the cavity 610, and the first chamber 100 and the second chamber 200 are respectively located on both sides of the partition 620.
[0069] The housing 600 includes a discharge pipe 630, and the conveying channel 300 is located inside the discharge pipe 630. Among them, the discharge pipe 630 can be provided on the side of the housing 600.
[0070] As Figure 11 shown, a notch 621 is provided on the partition 620, and the first chamber 100 is connected to the mixing area 500 through the notch 621. Among them, the mixing area 500 includes the exhaust side 210 of the second chamber 200 and the inlet side 320 of the conveying channel 300. The exhaust side 210 of the second chamber 200 faces the inlet side 320 of the conveying channel 300.
[0071] A central hole 622 is provided at the center of the partition portion 620. The central hole 622 is for the mounting shaft 700 of the material cutting device 410 and the air flow generating device 420 to pass through. Among them, the notch 621 is connected to the central hole 622. The partition portion 620 can adopt a plate-like structure and is fixed in the housing 600 by means of bonding, clamping, screw connection, etc. A positioning structure 640 can be provided in the housing 600. The positioning structure 640 is used to position the partition portion. Among them, the positioning structure 640 protrudes above the bottom surface of the second chamber 200, and the second chamber 200 is partially surrounded by the positioning structure 640.
[0072] As Figure 7 shown, the mixing area 500 includes an included angle portion 510 with an acute angle. The included angle portion 510 faces the exhaust side 210 of the second chamber 200. The shielding portion 12 is arranged in the included angle portion 510. The shielding portion 12 can fill the included angle portion 510 to prevent material jamming. In the figure, since the included angle portion 510 has been filled by the shielding portion 12, the position of the included angle portion 510 is shown by hatching.
[0073] Since the included angle portion 510 faces the second chamber 200, part of the gas-solid mixture in the mixing area 500 will flow towards the included angle portion 510 during the discharge process; and since the included angle portion 510 is an acute angle, the chips in the gas-solid mixture may get stuck in the included angle portion 510, resulting in material jamming. In severe cases of material jamming, it will cause blockage. In this embodiment, the shielding portion 12 is arranged in the included angle portion 510, thereby eliminating the acute angle and preventing material jamming.
[0074] In this embodiment, the material cutting device 410 and the air flow generating device 420 are fixedly installed on the same mounting shaft 700. Among them, the mounting shaft 700 is connected to a driving module, and the driving module is used to drive the mounting shaft 700 to rotate. As the mounting shaft 700 rotates, the material cutting device 410 and the air flow generating device 420 will rotate synchronously.
[0075] The driving module includes a motor.
[0076] An installation through hole 650 is provided on the housing 600. The installation through hole 650 is communicated with the cavity 610. Among them, the driving module is arranged outside the housing 600, and the power shaft of the driving module is fixedly connected to the mounting shaft 700 through the installation through hole 650. The air outside the housing 600 can flow into the second chamber 200 through the installation through hole 650. Among them, under the action of the air flow generating device 420, the inflowing air forms an accelerated air flow in the second chamber 200.
[0077] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0078] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limitations on this application. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.
Claims
1. A garden cleaning device with a protective function, characterized in that, It comprises a shell, a cutting device and a blocking structure; the shell comprises a cavity and a discharge port, and the cutting device is arranged in the cavity; The cutting device is used to cut or crush the object to be cleaned to produce material chips; The discharge port is used to discharge the material chips to the outside of the shell; The blocking structure is used to block a straight path passing through the discharge port and pointing to the cutting device.
2. The garden cleaning device with a protection function according to claim 1, characterized in that, The shell is provided with a conveying channel for conveying the material chips, wherein the discharge port is provided at one end of the conveying channel.
3. The garden cleaning equipment with a protection function according to claim 2, characterized in that, The conveying channel comprises a first inner side wall and a second inner side wall which are arranged opposite to each other; the first inner side wall and the second inner side wall are arranged in sequence along a first direction; wherein the first direction is parallel to the rotation axis of the cutting device; Along the first direction, the first inner side wall is closer to the cutting device than the second inner side wall.
4. The garden cleaning device with a protection function according to claim 3, characterized in that, The blocking structure comprises an arch, the arch is arranged on the first inner side wall, and the protrusion direction of the arch faces the side where the second inner side wall is located; or / and, The blocking structure includes a shielding portion, which is disposed on an end of the first inner side wall away from the discharge port, and extends toward a side away from the discharge port.
5. The garden cleaning equipment with a protection function according to claim 3, characterized in that, The blocking structure includes a blocking section; the blocking section is located on the second inner side wall, and the blocking section is arranged close to the discharge port; The shielding section is perpendicular to the rotation axis of the cutting device, or the shielding section is inclined toward the side where the first inner side wall is located.
6. The garden cleaning equipment with a protection function according to claim 2, characterized in that, The delivery channel comprises a third inner side wall and a fourth inner side wall which are arranged opposite to each other; the third inner side wall and the fourth inner side wall are arranged in sequence along a second direction; wherein the second direction is a radial direction of the cavity; Along the second direction, the third inner side wall is closer to the cutting device than the fourth inner side wall; The third inner side wall and the fourth inner side wall constitute the blocking structure; wherein, along the flow direction of the material chips in the conveying channel, the distance between the third inner side wall and the fourth inner side wall gradually increases.
7. The garden cleaning device with a protection function according to claim 1, characterized in that, An airflow generating device is arranged in the cavity, and the airflow generating device is used to generate an accelerated airflow for driving the material chips to flow.
8. The garden cleaning device with a protection function according to claim 7, characterized in that, The cutting device and the airflow generating device are fixedly mounted on the same mounting shaft, wherein the mounting shaft is connected to a driving module, and the driving module is used to drive the mounting shaft to rotate.
9. The garden cleaning device with a protection function according to claim 7, characterized in that, The cutting device comprises a plurality of connecting arms arranged in a circular array, and the connecting arms are provided with cutting teeth; the airflow generating device comprises a turbo fan.
10. The garden cleaning device with a protection function according to claim 1, characterized in that, The discharge port is provided with a collecting device, and the collecting device is used to collect the material chips.