Cleaning disc lifting device
By using non-coaxial hinge points in the cleaning disk lifting device, the problem of difficulty in debugging and easy damage of the limit structure is solved, and the stability of the cleaning disk is achieved and the risk of damage is reduced. It has the advantages of simple installation and low cost.
Patent Information
- Application Number
- CN202422459809.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-11
AI Technical Summary
In the existing cleaning plate lifting device, it is difficult to debug the limit structure. If the limit is too low, the component will be deformed or damaged due to excessive force. If the limit is too high, it will not be fixed, and the limit rubber pad is easy to be damaged.
The structure of two parallel connecting rods and the frame is adopted, combining the buffer connector and the adaptive adjustment structure to avoid swinging front and back of the cleaning plate, enhance stability, and reduce impact damage through the buffer connector.
It realizes stable improvement of the cleaning plate and reduces the risk of damage, simplifies installation and debugging, reduces the cost of use, and avoids the problem of easy and consumable limit structures.
Smart Images
Figure CN223176636U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cleaning vehicles, in particular to a cleaning disk lifting device. Background Art
[0002] Urban road cleaning is an important project for urban environmental sanitation management. During the operation of a cleaning vehicle, a cleaning disk is usually used to clean dirt. When the vehicle is moving, the cleaning disk is lifted by a lifting device, and when the vehicle is operating, the cleaning disk is lowered by the lifting device. At present, the cleaning disk lifting device in the industry generally uses a double swing arm plus an oil cylinder to control the lifting and lowering. After the cleaning disk is lifted in place, due to only two swing arms and the swinging rotation points of the two swing arms being coaxially arranged, the state of the cleaning disk is not fixed, and it will swing back and forth. Currently, the conventional solution in the industry is to add two limit points at the front and back respectively. After the cleaning disk is lifted, the upper end of the cleaning disk abuts against the limit points, so as to ensure that the cleaning disk is fixed and does not swing when the vehicle is driving. However, the method of adding limits has difficulties in debugging and needs to be matched with the stroke of the oil cylinder. If the limit is too low, it is easy to cause excessive stress on the structure, resulting in deformation or even damage. If the limit is too high, the cleaning disk cannot be completely fixed. At the same time, the limit rubber pad is easy to be damaged under pressure and needs to be replaced frequently. Content of the Utility Model
[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a cleaning disk lifting device, which can effectively solve the problems in the background art.
[0004] In order to achieve the above purpose, the utility model provides the following technical scheme: A cleaning disk lifting device, including a cleaning disk main body, a linear lifting unit, a first connecting rod and a second connecting rod. The fixed end of the linear lifting unit is hinged to the vehicle frame. The first end of the first connecting rod is hinged to the vehicle frame to form a first hinge point. The first end of the second connecting rod is hinged to the vehicle frame to form a second hinge point. The telescopic end of the linear lifting unit, the second end of the first connecting rod and the second end of the second connecting rod are respectively hinged to the top of the cleaning disk main body. The first connecting rod and the second connecting rod are arranged in parallel and the first hinge point and the second hinge point are not coaxially arranged.
[0005] As a further improvement of the above technical scheme:
[0006] The number of the first connecting rods is two. The two first hinge points formed by the two first connecting rods and the vehicle frame are coaxially arranged, and the two first connecting rods and the second connecting rod form a triangular structure.
[0007] The linear lifting unit is any one of an electric push rod, a cylinder and an oil cylinder.
[0008] A buffer connecting piece is arranged between the telescopic end of the linear lifting unit and the cleaning disk main body, and the telescopic end of the linear lifting unit and the cleaning disk main body are connected through the buffer connecting piece.
[0009] The buffer connecting member is a chain, and the number of the chains is two.
[0010] A first hinge seat is arranged at the top of the main body of the cleaning tray. A connecting head is arranged at the telescopic end of the linear lifting unit. The two chains are distributed on both sides of the connecting head. One end of the chain is connected to the first hinge seat, and the other end of the chain is connected to the connecting head.
[0011] An adjusting structure for the main body of the cleaning tray to adaptively fit the ground is arranged between the second connecting rod and the main body of the cleaning tray.
[0012] The adjusting structure includes a second hinge seat, a rotating shaft, an elastic member, and a kidney-shaped hole opened at the lower end of the second connecting rod. The rotating shaft is arranged in the kidney-shaped hole. The second connecting rod is connected to the second hinge seat through the rotating shaft. One end of the elastic member is connected to the top of the main body of the cleaning tray, and the other end of the elastic member is connected to the second connecting rod.
[0013] The elastic member is a tension spring.
[0014] The main body of the cleaning tray includes front wheels and rear wheels respectively arranged on the front and rear sides of the bottom.
[0015] Compared with the prior art, the above technical solution brings the following technical effects:
[0016] On the basis of the first connecting rod, the utility model is additionally provided with a second connecting rod. The first connecting rod and the second connecting rod are arranged in parallel, and the first hinge point formed by the hinged connection between the first connecting rod and the vehicle frame and the second hinge point formed by the hinged connection between the second connecting rod and the vehicle frame are not coaxially arranged. During the process of the linear lifting unit driving the main body of the cleaning tray to lift or after the main body of the cleaning tray is lifted in place, the angles between the first connecting rod and the main body of the cleaning tray and between the second connecting rod and the main body of the cleaning tray always remain the same, thereby avoiding the front and rear swinging of the main body of the cleaning tray and ensuring the stability of the main body of the cleaning tray. Using this structure to replace the existing two additional limiting structures at the front and rear of the main body of the cleaning tray solves the problems of difficult debugging in adding the limiting structures, excessive force on the components due to too low setting of the limiting structures resulting in deformation or even damage, incomplete fixation of the main body of the cleaning tray if the limit is too high, and easy damage of the limiting rubber pads under pressure. This product has the advantages of simple structure, convenient installation and debugging, no vulnerable parts, and low use cost.
[0017] A buffer connecting member is arranged between the telescopic end of the linear lifting unit of the utility model and the main body of the cleaning tray, which can avoid the damage of the main body of the cleaning tray caused by the impact force brought by the pitted ground during work.
[0018] An adjusting structure for the cleaning disk body to adaptively fit the ground is provided between the second connecting rod of the present utility model and the cleaning disk body. When the cleaning disk body works and encounters uneven ground, the cleaning disk body can adaptively fine-tune the front and rear angles, so that the front and rear wheels of the cleaning disk body can better fit the ground. Description of the Drawings
[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.
[0020] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0021] Figure 2 is a schematic diagram of the structure of the linear lifting unit;
[0022] Figure 3 is a schematic diagram of the structure of the second connecting rod;
[0023] Main element symbol description:
[0024] 1. Cleaning disk body; 100. Front wheel; 101. Rear wheel; 2. Linear lifting unit; 3. First connecting rod; 4. Second connecting rod; 5. Buffer connecting piece; 6. First hinge seat; 7. Connector; 8. Adjusting structure; 81. Second hinge seat; 82. Rotating shaft; 83. Elastic member; 84. Kidney-shaped hole. Specific Embodiments
[0025] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals indicate the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present utility model and should not be construed as limiting the present utility model.
[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. 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 thus should not be construed as a limitation to the present utility model.
[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. 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, "a plurality of" means two or more unless otherwise specifically defined.
[0028] In the present utility model, unless otherwise clearly specified and defined, terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between 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 circumstances.
[0029] In the present utility model, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal level than the second feature.
[0030] Such as Figures 1 to 3As shown in the figure, the cleaning tray lifting device of this embodiment includes a cleaning tray main body 1, a linear lifting unit 2, a first connecting rod 3, and a second connecting rod 4. The cleaning tray main body 1 includes a front wheel 100 and a rear wheel 101 respectively arranged on the front and rear sides of the bottom. The fixed end of the linear lifting unit 2 is hinged to the vehicle frame. The first end of the first connecting rod 3 is hinged to the vehicle frame to form a first hinge point. The first end of the second connecting rod 4 is hinged to the vehicle frame to form a second hinge point. The telescopic end of the linear lifting unit 2, the second end of the first connecting rod 3, and the second end of the second connecting rod 4 are respectively hinged to the top of the cleaning tray main body 1. The first connecting rod 3 and the second connecting rod 4 are arranged in parallel, and the first hinge point and the second hinge point are not coaxially arranged.
[0031] On the basis of the existing first connecting rod 3, the cleaning tray lifting device is additionally provided with a second connecting rod 4. The first connecting rod 3 and the second connecting rod 4 are arranged in parallel, and the first hinge point formed by the first connecting rod 3 hinged to the vehicle frame and the second hinge point formed by the second connecting rod 4 hinged to the vehicle frame are not coaxially arranged. The distance between the first hinge point and the second hinge point remains unchanged all the time. The angles between the first connecting rod 3 and the cleaning tray main body 1 and between the second connecting rod 4 and the cleaning tray main body 1 always remain the same. When the vehicle is running, it is necessary to raise the cleaning tray main body 1. Control the telescopic end of the linear lifting unit 2 to retract. During the process of the linear lifting unit 2 driving the cleaning tray main body 1 to lift and lower, the cleaning tray main body 1 is lifted in a horizontal state. During this process, the first connecting rod 3 and the second connecting rod 4 act on the cleaning tray main body 1, so that the front and rear positions of the cleaning tray main body 1 are kept balanced. The linear lifting unit 2 acts on the cleaning tray main body 1 to provide power for the up and down movement of the cleaning tray main body 1. After the cleaning tray main body 1 is lifted in place, it acts on the cleaning tray main body 1 through the first connecting rod 3 and the second connecting rod 4, thus avoiding the front and rear swing of the cleaning tray main body 1 and ensuring the stability of the cleaning tray main body 1. Using this structure to replace the existing structure of adding two limiting structures at the front and rear of the cleaning tray main body 1 respectively, this solution solves the problems of difficult debugging existing in adding limiting structures, excessive force on the components due to too low setting of the limiting structures resulting in deformation or even damage, incomplete fixing of the cleaning tray main body 1 if the limit is too high, and easy damage of the limiting rubber pads under pressure.
[0032] In this embodiment, the front refers to the direction of the front wheel 100, and the rear refers to the direction of the rear wheel 101.
[0033] In this embodiment, the number of the first connecting rods 3 is two. The two first hinge points formed by the two first connecting rods 3 and the vehicle frame are coaxially arranged. The two first connecting rods 3 and the second connecting rod 4 form a triangular structure. The triangular structure makes the cleaning tray main body 1 more stable and ensures the connection strength.
[0034] In this embodiment, the linear lifting unit 2 can be any one of an electric push rod, a cylinder, and an oil cylinder. In this embodiment, the linear lifting unit 2 is preferably an oil cylinder.
[0035] In this embodiment, a buffer connecting member 5 is provided between the telescopic end of the linear lifting unit 2 and the cleaning tray main body 1, and the telescopic end of the linear lifting unit 2 and the cleaning tray main body 1 are connected through the buffer connecting member 5. Since the buffer connecting member 5 is provided between the telescopic end of the linear lifting unit 2 and the cleaning tray main body 1, when the front wheel 100 and the rear wheel 101 of the cleaning tray main body 1 are impacted by the pitted ground, the cleaning tray main body 1 can slightly jump upward to release the impact force, thereby avoiding damage to the cleaning tray main body.
[0036] In this embodiment, the buffer connecting member 5 is a chain, and the number of chains is two, which ensures the connection strength.
[0037] In this embodiment, a first hinge seat 6 is provided at the top of the cleaning tray main body 1, a connecting head 7 is provided at the telescopic end of the linear lifting unit 2, and the two chains are distributed on both sides of the connecting head 7. One end of the chain is connected to the first hinge seat 6, and the other end of the chain is connected to the connecting head 7.
[0038] Specifically, an installation hole is provided on the connecting head 7, a connecting member is inserted into the installation hole, one ends of the two chains are respectively connected to both ends of the connecting member, and the other ends of the chains are both connected to the first hinge seat 6.
[0039] In this embodiment, an adjusting structure 8 for the cleaning tray main body 1 to adaptively fit the ground is provided between the second connecting rod 4 and the cleaning tray main body 1. When the cleaning tray main body 1 works and encounters uneven ground, the cleaning tray main body 1 can adaptively fine-tune the front and rear angles, so that the front and rear wheels of the cleaning tray main body 1 better fit the ground.
[0040] In this embodiment, the adjusting structure 8 includes a second hinge seat 81, a rotating shaft 82, an elastic member 83, and a kidney-shaped hole 84 opened at the lower end of the second connecting rod 4. The elastic member 83 is a tension spring, and the pulling force of the tension spring is less than the gravity of the cleaning tray main body 1. The rotating shaft 82 is inserted into the kidney-shaped hole 84, and the second connecting rod 4 is connected to the second hinge seat 81 through the rotating shaft 82. One end of the elastic member 83 is connected to the top of the cleaning tray main body 1, and the other end of the elastic member 83 is connected to the second connecting rod 4.
[0041] When the vehicle is moving, it is necessary to raise the cleaning disk body 1, control the telescopic end of the linear lifting unit 2 to retract, and the cleaning disk body 1 is lifted while maintaining a horizontal state. At this time, under the action of the tension spring, the rotating shaft 82 is located at the upper semi-circle of the kidney-shaped hole 84, and the rear wheel 101 is slightly lower than the front wheel 100, and the cleaning disk body 1 basically maintains a horizontal state. When the vehicle is operating, it is necessary to lower the cleaning disk body 1, control the telescopic end of the oil cylinder to extend. When the cleaning disk body 1 descends to a certain height, the rear wheel 101 touches the ground first. When the telescopic end of the oil cylinder continues to extend, due to the action of gravity, the front wheel 100 also touches the ground. At this time, the rotating shaft 82 is located in the middle of the kidney-shaped hole 84, and the tension spring is stretched. After the telescopic end of the oil cylinder is fully extended, the chain between the oil cylinder and the cleaning disk body 1 is in a slack state, and the oil cylinder is no longer stressed. When the road surface is uneven, the rotating shaft 82 can slide up and down in the kidney-shaped hole 84, and the cleaning disk body 1 can adaptively fine-tune the front and rear angles, and can always keep the front and rear wheels on the ground, so that the front and rear wheels of the cleaning disk body 1 can better fit the ground.
[0042] Except for the technical features described in the specification, the rest of the technical features are known to those skilled in the art.
[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means 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 the present invention. In this specification, the schematic representations 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 any one or more embodiments or examples in a suitable manner. 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.
[0044] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments, as long as they meet the purpose of the present invention, they should be within the scope of protection required by the present invention, such as: different combinations of the specific embodiments, different combinations of the distinguishing technical features.
Claims
1. A cleaning tray lifting device, characterized in that, It includes a cleaning disk main body (1), a linear lifting unit (2), a first connecting rod (3) and a second connecting rod (4). The fixed end of the linear lifting unit (2) is hinged to the vehicle frame. The first end of the first connecting rod (3) is hinged to the vehicle frame to form a first hinge point. The first end of the second connecting rod (4) is hinged to the vehicle frame to form a second hinge point. The telescopic end of the linear lifting unit (2), the second end of the first connecting rod (3) and the second end of the second connecting rod (4) are respectively hinged to the top of the cleaning disk main body (1). The first connecting rod (3) and the second connecting rod (4) are arranged in parallel and the first hinge point and the second hinge point are not coaxially arranged.
2. The cleaning tray lifting device according to claim 1, characterized in that, The number of the first connecting rods (3) is two. The two first hinge points formed by the two first connecting rods (3) and the vehicle frame are coaxially arranged. The two first connecting rods (3) and the second connecting rod (4) form a triangular structure.
3. The cleaning tray lifting device according to claim 1, characterized in that, The linear lifting unit (2) is any one of an electric push rod, a cylinder and an oil cylinder.
4. The cleaning tray lifting device according to claim 1, characterized in that, A buffer connecting member (5) is arranged between the telescopic end of the linear lifting unit (2) and the cleaning disk main body (1). The telescopic end of the linear lifting unit (2) is connected to the cleaning disk main body (1) through the buffer connecting member (5).
5. The cleaning tray lifting device according to claim 4, characterized in that, The buffer connecting member (5) is a chain and the number of the chains is two.
6. The cleaning tray lifting device according to claim 5, characterized in that, A first hinge seat (6) is arranged at the top of the cleaning disk main body (1). A connecting head (7) is arranged at the telescopic end of the linear lifting unit (2). The two chains are distributed on both sides of the connecting head (7). One end of the chain is connected to the first hinge seat (6) and the other end of the chain is connected to the connecting head (7).
7. The cleaning tray lifting device according to claim 1, wherein An adjusting structure (8) for the cleaning disk main body (1) to adaptively fit the ground is arranged between the second connecting rod (4) and the cleaning disk main body (1).
8. The cleaning tray lifting device according to claim 7, wherein The adjusting structure (8) includes a second hinge seat (81), a rotating shaft (82), an elastic member (83) and a waist-shaped hole (84) opened at the lower end of the second connecting rod (4). The rotating shaft (82) is inserted into the waist-shaped hole. The second connecting rod (4) is connected to the second hinge seat (81) through the rotating shaft (82). One end of the elastic member (83) is connected to the top of the cleaning disk main body (1) and the other end of the elastic member (83) is connected to the second connecting rod (4).
9. The cleaning tray lifting device according to claim 8, wherein The elastic member (83) is a tension spring.
10. The cleaning tray lifting device according to any one of claims 1-9, characterized in that, The cleaning disk main body (1) includes a front wheel (100) and a rear wheel (101) respectively arranged on the front and rear sides of the bottom.