Obstacle crossing assembly and sweeper
By designing a barrier-surfing assembly including walking wheel sets, connectors and elastic members, the problem of the lack of auxiliary support when the existing sweepers breaks, achieving higher barrier-surfing capabilities and smoother obstacle-surfing.
Patent Information
- Application Number
- CN202421022915.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing sweepers lack auxiliary support when the obstacles are higher, resulting in a limited height of obstacles and a weaker ability to overcome obstacles.
A barrier-blocking assembly is designed, including a walking wheel set, a first connector, a second connector, a first elastic member and a second elastic member. Through the rotation of these components and the action of the elastic members, upward tension and downward pressure are generated, helping the front wheel to climb obstacles smoothly and improve obstacle crossing capabilities.
Through the design of the obstacle-over-the-blocking component, the lifting height of the front wheel is increased, the obstacle-over-the-blocking ability of the sweeper is improved, and obstacle-over-all can be overcome more smoothly.
Smart Images
Figure CN222693280U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of terminal technology, and in particular to an obstacle surmounting component and a sweeping machine. Background Art
[0002] At present, sweepers are usually equipped with universal wheels and travel wheels. Usually, only a single travel wheel is configured on one side of the sweeper, resulting in a lack of auxiliary support when overcoming obstacles. The obstacle overcoming height of the sweeper is limited, and the obstacle overcoming ability is weak. Utility Model Content
[0003] The present disclosure provides an obstacle-crossing component and a sweeper to address deficiencies in the related art.
[0004] According to an embodiment of the present disclosure, there is provided an obstacle crossing assembly, comprising:
[0005] Traveling wheel sets, each of which includes a front wheel and a rear wheel;
[0006] A first connecting member, the first connecting member being rotatably connected to the front wheel and the rear wheel respectively;
[0007] a second connecting member, the second connecting member being rotatably connected to the first connecting member, the second connecting member being rotatably connected to a device body of the device to which it belongs, and the second connecting member being extended toward a front end of the front wheel relative to the first connecting member;
[0008] During the obstacle climbing stage of the front wheel, the first connecting member rotates counterclockwise to the end position, and / or the second connecting member rotates clockwise to the end position, so as to generate an upward pulling force acting on the front wheel.
[0009] Optional, including:
[0010] a first elastic member, wherein the first elastic member connects the device body and the second connecting member, or the first elastic member connects the first connecting member and the second connecting member;
[0011] During the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to rotate counterclockwise to the end position, or the first elastic member drives the second connecting member to rotate clockwise to the end position to generate an upward pulling force acting on the front wheel.
[0012] Optionally, the first elastic member connects the first connecting member and the second connecting member, and the first elastic member is used to drive the first connecting member to rotate clockwise or counterclockwise. During the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to rotate counterclockwise to a stop position;
[0013] The obstacle climbing component also includes a second elastic member, which connects the equipment body and the second connecting member. The second elastic member is used to drive the second connecting member to rotate clockwise or counterclockwise. During the obstacle climbing stage of the front wheel, the second elastic member drives the second connecting member to rotate clockwise to the end position.
[0014] Optionally, after the front wheel contacts and supports an obstacle, the first connecting member rotates clockwise to an initial position to generate a downward pressure on the front wheel and an upward pulling force on the rear wheel.
[0015] Optionally, after the front wheel contacts and supports an obstacle, the second connecting member rotates counterclockwise to an initial position to generate downward pressure on the walking wheel set.
[0016] Optionally, the first elastic member includes: a tension spring, a torsion spring or a compression spring; and / or,
[0017] The second elastic member includes: a tension spring, a torsion spring or a compression spring.
[0018] Optionally, the first connecting member includes a first connecting rod, and the second connecting member includes a second connecting rod.
[0019] Optionally, it further includes a first rotating shaft and a second rotating shaft, wherein the first rotating shaft rotatably connects the first connecting member and the second connecting member; and the second rotating shaft rotatably connects the device body and the second connecting member.
[0020] Optionally, the diameters of the front wheel and the rear wheel are equal.
[0021] Optionally, the diameter of the front wheel is greater than the diameter of the rear wheel.
[0022] According to a second aspect of an embodiment of the present disclosure, there is provided a sweeping machine, comprising:
[0023] Equipment body;
[0024] In the obstacle crossing assembly as described in any of the aforementioned embodiments, the front wheels and the rear wheels are respectively rotatably connected to the device body.
[0025] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:
[0026] It can be seen from the above embodiments that in the obstacle climbing stage of the front wheels of the obstacle climbing assembly in the present invention, the first connecting member rotates counterclockwise or the second connecting member rotates clockwise, which can provide an upward pulling force for the walking wheel group, helping the front wheels to climb obstacles smoothly, which is beneficial to increase the lifting height of the front wheels, thereby improving the obstacle climbing capability of the device end equipped with the obstacle climbing assembly.
[0027] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0029] Figure 1 The figure is a simplified structural diagram of a sweeping machine including an obstacle crossing component according to an exemplary embodiment.
[0030] Figure 2 yes Figure 1 Schematic diagram of the sweeper from above.
[0031] Figure 3 It is a schematic diagram showing the structure of an obstacle crossing component according to an exemplary embodiment.
[0032] Figure 4 The figure is a schematic diagram of an obstacle surmounting component according to an exemplary embodiment.
[0033] Figure 5 It is a simplified structural diagram of another obstacle crossing component according to an exemplary embodiment. DETAILED DESCRIPTION
[0034] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0035] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. The singular forms of "a", "said" and "the" used in this disclosure and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.
[0036] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".
[0037] Figure 1 is a simplified structural diagram of a sweeping machine including an obstacle crossing component according to an exemplary embodiment. Figure 2 yes Figure 1 Schematic diagram of the sweeper from above, Figure 3 1 is a schematic diagram showing the structure of an obstacle crossing component according to an exemplary embodiment. In the following embodiments, the obstacle crossing component is applied to a commonly used household sweeper as an example for explanation. The obstacle crossing component can also be applied to other types of sweepers, and the present disclosure does not limit this.
[0038] like Figure 1 and Figure 2 As shown, the sweeping machine includes an obstacle crossing component and a device body 1, and the device body 1 may include universal wheels, a housing, a main board, a sensor, a cleaning component and other components. Figure 3 As shown, the obstacle crossing assembly includes a running wheel set 2, a first connecting member 3, a second connecting member 4, a first elastic member 5 and a second elastic member 6. The number of the running wheel sets 2 can be an odd number, and the odd number of running wheel sets 2 are basically arranged in a straight line along the front-back direction; of course, the number of the running wheel sets 2 can be an even number, and they are symmetrically distributed on both sides of the device body 1, such as Figure 2 As shown, the sweeper may include two symmetrically distributed running wheel groups 2, each running wheel group 2 including a front wheel 21 and a rear wheel 22, the front wheel 21 and the rear wheel 22 are respectively rotatably connected to the device body 1, and the front wheel 21 is closer to the front end of the sweeper than the rear wheel 22. It can be understood that the front wheel 21 is closer to the universal wheel of the sweeper than the rear wheel 22.
[0039] The first connecting member 3 is rotatably connected to the front wheel 21 and the rear wheel 22 respectively, the second connecting member 4 is rotatably connected to the first connecting member 3 and the device body 1 respectively, and the second connecting member 4 is extended relative to the first connecting member 3 toward the front end of the sweeping machine. Among them, the first connecting member 3 and the second connecting member 4 can respectively adopt any structural form, and the necessary avoidance design can be made according to the structure of the sweeping machine. For example, the first connecting member 3 can be a first connecting rod or a housing, and similarly, the second connecting member 4 can be a second connecting rod or a housing. The first connecting member 3 and the second connecting member 4 can adopt the same structure or different structures, and the present disclosure does not limit this. The second connecting member 4 extends relative to the first connecting member 3 toward the front end of the sweeping machine. Specifically, the second connecting member 4 can extend in a direction perpendicular to the height direction of the sweeping machine, or it can also be an extension at a non-zero angle and non-90° relative to the height direction of the sweeping machine. The specific design can be as needed.
[0040] Among them, in order to realize the rotational connection between the first connecting member 3 and the second connecting member 4, the sweeping machine also includes a first rotating shaft 7, which is rotationally connected to the first connecting member 3 and the second connecting member 4, and the first rotating shaft 7 can be fixedly connected to one of the first connecting member 3 and the second connecting member 4 and rotationally connected to the other; similarly, in order to realize the rotational connection between the second connecting member 4 and the device body 1, the sweeping machine also includes a second rotating shaft 8, which is rotationally connected to the second connecting member 4 and the device body 1, and the second rotating shaft 8 can be fixedly connected to one of the second connecting member 4 and the device body 1 and rotationally connected to the other.
[0041] The first elastic member 5 connects the first connecting member 3 and the second connecting member 4, and the second elastic member 6 connects the device body 1 and the second connecting member 4. Figure 4 As shown in the figure on the left side, in the obstacle climbing stage of the front wheel 21, that is, in the stage when the front wheel 21 goes up stairs or uphill, the second elastic member 6 can provide a force to the second connecting member 4 to drive the second connecting member 4 to rotate clockwise to the end position, thereby generating an upward pulling force on the first connecting member 3 through the second connecting member 4, helping the front wheel 21 to climb obstacles smoothly; in the obstacle climbing stage of the front wheel 21, the first elastic member 5 can drive the first connecting member 3 to rotate counterclockwise to the end position, and through the counterclockwise rotation of the first connecting member 3, the front wheel 21 is driven to rotate counterclockwise relative to the rear wheel 22 and raised, thereby helping the front wheel 21 to climb obstacles smoothly. At the same time, the counterclockwise rotation of the first connecting member 3 can generate downward pressure on the rear wheel 22, so that it contacts the ground to form support for the sweeper; and through the cooperation of the first elastic member 5 and the second elastic member 6, it is beneficial to increase the lifting height of the front wheel 21, thereby improving the obstacle surmounting ability of the sweeper.
[0042] like Figure 4As shown in the middle figure, after the front wheel 21 has completed climbing the obstacle and is already on the step or has contacted the top edge of the step or has flipped over the step, the rear wheel 22 switches to the obstacle climbing stage, that is, after the front wheel 21 contacts and supports the obstacle, the first elastic member 5 can reset and drive the first connecting member 3 to rotate clockwise to the initial position. The clockwise rotation of the first connecting member 3 can generate a downward force toward the front wheel 21, helping the front wheel 21 to maintain contact with the step, which helps to achieve walking through friction; at the same time, the clockwise rotation of the first connecting member 3 can generate an upward force toward the rear wheel 22, helping to lift the rear wheel 22, so as to facilitate the rear wheel 22 to climb high and contact the step.
[0043] After climbing the obstacle, the front wheel 21 contacts the obstacle to form a support, and the second elastic member 6 drives the second connecting member 4 to rotate counterclockwise to the initial position, thereby generating downward pressure on the first connecting member 3, and then the first connecting member 3 can apply downward pressure to the front wheel 21 and the rear wheel 22 to keep them in contact with the ground, and the reciprocating rotation of the second connecting member 4 is driven by the second elastic member 6, which is beneficial to improve the shock absorption ability of the sweeper. When the sweeper is in a flat ground walking state, the first elastic member 5 and the second elastic member 6 can both be in the initial position, and the second elastic member 6 can always provide downward pressure to the walking wheel group 2, so that the walking wheel group 2 keeps in contact with the ground, increasing friction, which is beneficial to the walking of the sweeper on smooth ground. After the front wheel 21 and the rear wheel 22 have completed climbing the obstacle, the first elastic member 5 and the second elastic member 6 are restored to Figure 4 The initial position is shown in the figure on the right.
[0044] Among them, the first elastic member 5 can be an elastic member of any structure. For example, the first elastic member 5 can include a tension spring, a torsion spring or a compression spring; similarly, the second elastic member 6 can be an elastic member of any structure. For example, the first elastic member 5 can include a tension spring, a torsion spring or a compression spring. The present disclosure does not limit this. The present disclosure does not limit the specific connection position of the first elastic member 5. The design can generate a corresponding force in each stage of the aforementioned embodiment to drive the second connecting member 4 to rotate in the target direction; similarly, the present disclosure does not limit the specific connection position of the second elastic member 6. The design can generate a corresponding force in each stage of the aforementioned embodiment to drive the first connecting member 3 to rotate in the target direction.
[0045] In the aforementioned embodiment, the sweeping machine includes the first elastic member 5 and the second elastic member 6 as an example for explanation. In other embodiments, the sweeping machine may also include only the first elastic member 5, which connects the device body 1 and the second connecting member 4, and, in the obstacle climbing stage of the front wheel 21, the first elastic member 5 can drive the second connecting member 4 to rotate clockwise, and after the front wheel 21 contacts and supports the obstacle, the first elastic member 5 drives the second connecting member 4 to rotate counterclockwise to reset, so as to generate downward pressure on the walking wheel group 2; or, the sweeping machine may also include only the first elastic member 5, which connects the first connecting member 3 and the second connecting member 4, and in the obstacle climbing stage of the front wheel 21, the first elastic member 5 drives the first connecting member 3 to rotate counterclockwise, and in the obstacle climbing stage of the rear wheel 22, the first elastic member 5 drives the first connecting member to rotate clockwise to reset.
[0046] In the aforementioned embodiment, the first elastic member 5 is used to drive the first connecting member 3 to rotate clockwise or counterclockwise, and the second elastic member 6 is used to drive the second connecting member 4 to rotate clockwise or counterclockwise. In fact, the first connecting member 3 and the second connecting member 4 may be driven to rotate clockwise or counterclockwise respectively in other ways. For example, the obstacle crossing component also includes a drive motor and a sensor. When the sensor detects that the front wheel 21 is in the obstacle climbing stage, the drive motor may be used to drive the second connecting member 4 to rotate counterclockwise to the end position, and after the obstacle climbing is completed, the drive motor may drive the second connecting member 4 to rotate clockwise to the initial position. Similarly, the drive motor may be used to drive the first connecting member 3 to rotate clockwise or counterclockwise to assist in obstacle crossing.
[0047] In other words, in the obstacle climbing stage of the front wheel, the first connecting member 3 rotates counterclockwise to the end position and / or the second connecting member 4 rotates clockwise to the end position, which can generate an upward pulling force acting on the front wheel 21. The rotation power source of the first connecting member 3 can refer to any of the aforementioned embodiments, and the rotation power source of the second connecting member 4 can refer to any of the aforementioned embodiments.
[0048] In each of the above embodiments, in order to limit the position of the first connecting member 3, the device body 1 also includes a first limiting member and a second limiting member, the first limiting member contacts and limits the first connecting member 3, and the first connecting member 3 is limited to the end position, and the second limiting member contacts and limits the first connecting member 3, and the first connecting member 3 is limited to the initial position. The first limiting member and the second limiting member can be blocks or other structures; similarly, the device body includes a third limiting member and a fourth limiting member, the third limiting member contacts and limits the second connecting member 4, and the second connecting member 4 is limited to the end position, and the fourth limiting member contacts and limits the second connecting member 4, and the second connecting member 4 is limited to the initial position. The first limiting member and the second limiting member can be blocks or other structures.
[0049] In the above embodiments, the diameters of the front wheel 21 and the rear wheel 22 are equal, and the rear wheel 22 plays a supporting role during the obstacle climbing stage of the front wheel 21; or in other embodiments, such as Figure 5 As shown, the diameter of the front wheel 21 is larger than the diameter of the rear wheel 22. During the obstacle climbing stage of the front wheel 21, the rear wheel 22 plays a supporting role, and since the diameter of the rear wheel 22 is smaller, the weight can be set relatively lighter, so it is easier for the rear wheel 22 to achieve obstacle climbing under the drive of the front wheel 21.
[0050] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the disclosure disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.
[0051] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims
1. An obstacle crossing component, characterized in that: include: Traveling wheel sets, each of which includes a front wheel and a rear wheel; A first connecting member, the first connecting member being rotatably connected to the front wheel and the rear wheel respectively; a second connecting member, the second connecting member being rotatably connected to the first connecting member, the second connecting member being rotatably connected to a device body of the device to which it belongs, and the second connecting member being extended toward a front end of the front wheel relative to the first connecting member; During the obstacle climbing stage of the front wheel, the first connecting member rotates counterclockwise to the end position, and / or the second connecting member rotates clockwise to the end position, so as to generate an upward pulling force acting on the front wheel.
2. The obstacle surmounting assembly according to claim 1, characterized in that: include: a first elastic member, wherein the first elastic member connects the device body and the second connecting member, or the first elastic member connects the first connecting member and the second connecting member; During the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to rotate counterclockwise to the end position, or the first elastic member drives the second connecting member to rotate clockwise to the end position to generate an upward pulling force acting on the front wheel.
3. The obstacle surmounting assembly according to claim 2, characterized in that: The first elastic member connects the first connecting member and the second connecting member, and the first elastic member is used to drive the first connecting member to rotate clockwise or counterclockwise. In the obstacle climbing stage of the front wheel, the first elastic member drives the first connecting member to rotate counterclockwise to a stop position; The obstacle climbing component also includes a second elastic member, which connects the equipment body and the second connecting member. The second elastic member is used to drive the second connecting member to rotate clockwise or counterclockwise. During the obstacle climbing stage of the front wheel, the second elastic member drives the second connecting member to rotate clockwise to the end position.
4. The obstacle surmounting assembly according to claim 1, characterized in that: After the front wheel contacts and supports the obstacle, the first connecting member rotates clockwise to an initial position to generate a downward pressure on the front wheel and an upward pulling force on the rear wheel.
5. The obstacle surmounting assembly according to claim 1, characterized in that: After the front wheel contacts and supports the obstacle, the second connecting member rotates counterclockwise to an initial position to generate downward pressure on the running wheel set.
6. The obstacle surmounting assembly according to claim 3, characterized in that: The first elastic member includes: a tension spring, a torsion spring or a compression spring; and / or, The second elastic member includes: a tension spring, a torsion spring or a compression spring.
7. The obstacle surmounting assembly according to claim 1, characterized in that: The first connecting member includes a first connecting rod, and the second connecting member includes a second connecting rod.
8. The obstacle surmounting assembly according to claim 1, characterized in that: It also includes a first rotating shaft and a second rotating shaft, the first rotating shaft rotatably connects the first connecting member and the second connecting member; the second rotating shaft rotatably connects the device body and the second connecting member.
9. The obstacle surmounting assembly according to claim 1, characterized in that: The diameters of the front wheel and the rear wheel are equal.
10. The obstacle surmounting assembly according to claim 1, characterized in that: The diameter of the front wheel is greater than the diameter of the rear wheel.
11. A sweeping machine, characterized in that: include: Equipment body; The obstacle crossing assembly as described in any one of claims 1-10, wherein the front wheel and the rear wheel are respectively rotatably connected to the equipment body.