Floor grinding robot with height-adjustable front supporting wheels

Abstract

The utility model relates to the technical field of floor grinding equipment, and provides a floor grinding robot with height-adjustable front supporting wheels, which comprises a movable frame, a carriage, a grinding disc and a front supporting wheel mechanism, the carriage is arranged above the movable frame, the grinding disc is arranged below the front end of the movable frame, and the front supporting wheel mechanism comprises a rotating frame, a lifting shell, a telescopic rod, a driving piece and a supporting wheel; one end of the rotating frame is rotationally connected with the movable frame, the lifting shell is fixedly arranged at the other end of the rotating frame, the telescopic rod is slidably arranged in the lifting shell, the top end of the telescopic rod is connected with the driving end of the driving part, and the bottom end of the telescopic rod is rotationally connected with the supporting wheel; the supporting wheels can be lifted and locked by rotating the rotating frame, so that the rotating frame is in a storage state, and when the supporting wheels need to be put down, the supporting wheels are put down and locked by rotating the rotating frame, so that the rotating frame is in a working state, and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of floor grinding equipment, in particular to a floor grinding robot with adjustable height of front support wheels. Background Art

[0002] Floor grinders are mainly used for grinding treatment of the ground. It can effectively grind terrazzo, concrete surface layer, epoxy mortar layer and old epoxy floor, etc. It is an automated equipment for grinding or polishing concrete floors. Floor grinding construction includes dry grinding and wet grinding. Among them, a large amount of dust will be generated during dry grinding. Therefore, a high-power industrial vacuum cleaner is usually required for dust collection during the grinding process.

[0003] The existing floor grinding robots are provided with support wheels at the front end in the forward direction. The purpose is to assist in supporting and maintaining the balance and stability of the floor robot. However, the auxiliary support wheels are generally locked after installation and cannot be lifted. When the support wheels are not needed, the entire support wheels can only be removed, which is inconvenient to use. Summary of the Utility Model

[0004] Aiming at the above defects, the purpose of the present utility model is to provide a floor grinding robot with adjustable height of front support wheels, so as to solve the problems that the front support wheel mechanism of the prior art cannot rotate as a whole, cannot be folded and stored, and can only be disassembled, which is inconvenient to use.

[0005] To achieve this purpose, the present utility model adopts the following technical solutions:

[0006] A floor grinding robot with adjustable height of front support wheels, comprising a moving vehicle frame, a vehicle box, a grinding disc and a front support wheel mechanism; the vehicle box is arranged above the moving vehicle frame, and the grinding disc is arranged below the front end of the moving vehicle frame.

[0007] The front support wheel mechanism includes a rotating frame, a lifting outer shell, a telescopic rod, a driving member and a support wheel; one end of the rotating frame is rotatably connected to the moving vehicle frame, the lifting outer shell is fixedly arranged at the other end of the rotating frame, the telescopic rod is slidably arranged in the lifting outer shell, the top end of the telescopic rod is connected to the driving end of the driving member, and the bottom end of the telescopic rod is rotatably connected to the support wheel.

[0008] Preferably, rotating connection blocks are respectively arranged on both sides of the front end of the moving vehicle frame. The rotating connection blocks are provided with hinge holes, and rotating shafts are respectively arranged on both sides of the rotating frame. The rotating shafts are inserted into the hinge holes for installation.

[0009] Preferably, a disassembly groove is arranged on the edge of the rotating connection block, and the disassembly groove communicates with the hinge hole.

[0010] Preferably, the rotating connection block is provided with a pin hole, the rotating frame is provided with at least two positioning holes, a pin is detachably installed in the pin hole, and the pin can be inserted into the positioning hole.

[0011] Preferably, the output end of the driving member is connected with a rotating shaft, the rotating shaft is installed in the lifting housing through a bearing, the rotating shaft is rotatably connected with the lifting housing, an external thread is provided at the bottom of the rotating shaft, and the top of the telescopic rod is threadedly connected with the external thread of the rotating shaft.

[0012] Preferably, the telescopic rod is a sleeve, a slider is provided at the top of the telescopic rod, an internal thread is provided on the inner wall of the slider, and the internal thread of the slider is in threaded connection with the external thread of the rotating shaft.

[0013] Preferably, two connecting pieces are provided at the bottom end of the telescopic rod, and the supporting wheels are respectively rotatably connected with the two connecting pieces through rotating shafts.

[0014] Preferably, the driving member is any one of a hand rocker or a motor.

[0015] Preferably, when the rotating frame rotates around the moving vehicle frame to lower the supporting wheels, the telescopic rod is arranged at an angle with the horizontal plane, and the included angle a between the telescopic rod and the horizontal plane is 6° - 10°.

[0016] Preferably, a plurality of structural holes are hollowed out in the middle of the rotating frame.

[0017] One of the technical solutions in the above technical solutions has the following advantages or beneficial effects:

[0018] For a floor grinding robot with adjustable height of the front supporting wheels, when the supporting wheels are not needed, the supporting wheels can be lifted and locked by rotating the rotating frame, so that the rotating frame is in a storage state. When the supporting wheels need to be lowered, only need to rotate the rotating frame to lower and lock the supporting wheels, so that the rotating frame is in a working state, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0020] Figure 2 is a schematic diagram of the storage state of the front supporting wheel mechanism of an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the working state of the front supporting wheel mechanism of an embodiment of the present invention;

[0022] Figure 4 is Figure 3 a partial enlarged schematic diagram of

[0023] Figure 5 is a cross-sectional view of the front support wheel mechanism of an embodiment of the present utility model;

[0024] Figure 6 is a side view of an embodiment of the present utility model.

[0025] Wherein: moving vehicle frame 1, rotating connection block 11, hinge hole 111, disassembly groove 112, pin hole 113, pin 12, carriage 2, grinding disc 3, front support wheel mechanism 4, rotating frame 41, rotating shaft 411, positioning hole 412, structural hole 413, lifting outer shell 42, telescopic rod 43, connecting piece 431, driving member 44, support wheel 45, rotating shaft 46, slider 47. Specific embodiments

[0026] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the drawings, wherein 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 with reference to the drawings are exemplary and are only used to explain the present utility model and should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "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, and 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 of the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features, used to distinguish and describe features, without order or importance.

[0028] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "connected" 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.

[0030] The following is combined with Figures 1 to 6A floor grinding robot with adjustable height of the front support wheel according to an embodiment of the present utility model includes a mobile frame 1, a carriage 2, a grinding disc 3 and a front support wheel mechanism 4;

[0031] The carriage 2 is arranged above the mobile frame 1, and the grinding disc 3 is arranged below the front end of the mobile frame 1.

[0032] The front support wheel mechanism 4 includes a rotating frame 41, a lifting housing 42, a telescopic rod 43, a driving member 44 and a support wheel 45;

[0033] One end of the rotating frame 41 is rotatably connected to the mobile frame 1, the lifting housing 42 is fixedly arranged at the other end of the rotating frame 41, the telescopic rod 43 is slidably arranged in the lifting housing 42, the top end of the telescopic rod 43 is connected to the driving end of the driving member 44, and the bottom end of the telescopic rod 43 is rotatably connected to the support wheel 45.

[0034] Specifically, the existing floor grinding robot will be provided with a support wheel 45 at the front end in the advancing direction, and the purpose is to assist in supporting and maintaining the balance and stability of the floor grinding robot. However, this auxiliary support wheel 45 is generally locked after installation and cannot be lifted. When the support wheel 45 is not needed, the entire support wheel 45 can only be removed. In this embodiment, the support wheel 45 is installed at one end of the rotating frame 41, and the other end of the rotating frame 41 is rotatably connected to the mobile frame 1. When the support wheel 45 is not needed, the support wheel 45 can be lifted and locked by rotating the rotating frame 41, so that the rotating frame 41 is in a storage state. When the support wheel 45 needs to be lowered, only rotate the rotating frame 41 to lower and lock the support wheel 45, so that the rotating frame 41 is in a working state, and the operation is simple and convenient; in addition, driven by the driving member 44, the telescopic rod 43 makes a lifting movement in the lifting housing 42, which can drive the support wheel 45 to lift and lower, realizing the height adjustment of the support wheel 45, and further cooperating with the grinding work of the floor grinding robot. When the grinding disc 3 needs to be lifted, only drive the telescopic rod 43 to descend, so that the support wheel 45 descends, and the front end of the mobile frame 1 can be lifted by the reaction force, so that the grinding disc 3 is lifted, and operations such as replacing the grinding disc 3 can be performed. When the grinding disc 3 needs to perform grinding operations, drive the telescopic rod 43 to rise, so that the support wheel 45 rises, and the grinding disc 3 will fall to the ground for grinding operations, which is more convenient to use.

[0035] Furthermore, rotating connection blocks 11 are respectively arranged on both sides of the front end of the mobile frame 1. The rotating connection blocks 11 are provided with hinge holes 111, and rotating shafts 411 are respectively arranged on both sides of the rotating frame 41. The rotating shafts 411 are inserted into the hinge holes 111 for installation.

[0036] Specifically, in this embodiment, rotating shafts 411 are respectively arranged on both sides of the rotating frame 41 and inserted into the hinge holes 111 of the rotating connection blocks 11 of the moving vehicle frame 1. The rotational movement of the rotating frame 41 is realized by the rotation of the rotating shafts 411 within the hinge holes 111. Arranging the rotating shafts 411 on both sides can ensure the stable movement of the rotating frame 41.

[0037] Furthermore, a disassembly groove 112 is provided at the edge of the rotating connection block 11, and the disassembly groove 112 communicates with the hinge hole 111.

[0038] Specifically, in this embodiment, the provision of the disassembly groove 112 enables the rotating frame 41 to be disassembled by simply pulling out the rotating shafts 411 along the disassembly groove 112. The operation is simple, making the installation and disassembly of the rotating frame 41 more convenient and rapid.

[0039] Furthermore, the rotating connection block 11 is provided with a pin hole 113, the rotating frame 41 is provided with at least two positioning holes 412, a pin 12 is detachably installed in the pin hole 113, and the pin 12 can be inserted into the positioning holes 412.

[0040] Specifically, in this embodiment, the two positioning holes 412 respectively correspond to the storage state and the working state of the rotating frame 41. When it is necessary to change the usage state, the pin 12 is pulled out. After the rotating frame 41 is rotated into place, the pin 12 is inserted from the pin hole 113 into the positioning holes 412 to realize the limitation of the rotating frame 41 and prevent the rotating frame 41 from rotating.

[0041] Furthermore, the output end of the driving member 44 is connected to a rotating shaft 46. The rotating shaft 46 is installed in the lifting housing 42 through a bearing, the rotating shaft 46 is rotationally connected to the lifting housing 42, an external thread is provided at the bottom of the rotating shaft 46, and the top of the telescopic rod 43 is threadedly engaged with the external thread of the rotating shaft 46.

[0042] Specifically, in this embodiment, the driving member 44 drives the rotating shaft 46 to rotate within the lifting housing 42. The rotational movement of the rotating shaft 46 will drive the telescopic rod 43 to perform a lifting movement within the lifting housing 42 through threaded engagement, thereby driving the support wheel 45 to lift, enabling the height adjustment of the support wheel 45. Further, in cooperation with the grinding work of the floor grinding robot, when the telescopic rod 43 is driven to descend, the support wheel 45 descends, and the front end of the moving vehicle frame 1 can be lifted by the reaction force, causing the grinding disc 3 to lift, and operations such as replacing the grinding disc 3 can be performed. When the grinding disc 3 needs to perform grinding operations, the telescopic rod 43 is driven to rise, the support wheel 45 rises, and the grinding disc 3 will fall to the ground for grinding operations.

[0043] Further, the telescopic rod 43 is a sleeve. A slider 47 is provided at the top of the telescopic rod 43. An internal thread is provided on the inner wall of the slider 47, and the internal thread of the slider 47 is in threaded connection with the external thread of the rotating shaft 46.

[0044] Specifically, in this embodiment, the telescopic rod 43 is a sleeve. The rotating shaft 46 is inserted into the interior of the telescopic rod 43 and is in threaded connection with the slider 47 of the telescopic rod 43. The outer wall of the telescopic rod 43 is in close contact with the inner wall of the lifting housing 42. The inner wall of the lifting housing 42 plays a guiding role in the lifting movement of the telescopic rod 43. When the rotating shaft 46 rotates, it drives the slider 47 to lift and lower, so that the telescopic rod 43 makes a lifting movement along the inner wall of the lifting housing.

[0045] Further, two connecting pieces 431 are provided at the bottom end of the telescopic rod 43. The support wheels 45 are respectively rotatably connected to the two connecting pieces 431 through rotating shafts.

[0046] Specifically, in this embodiment, the connecting piece 431 is provided with a rotating hole. There are rotating shafts on both sides of the support wheel 45. The rotating shafts are respectively inserted into the rotating holes of the connecting piece 431. The support wheel 45 is rotatably connected to the two connecting pieces 431 through the rotating shafts, so as to ensure the stability of the connection of the support wheel 45.

[0047] Further, the driving member 44 is any one of a hand crank or a motor.

[0048] Specifically, in this embodiment, the driving member 44 is any one of a hand crank or a motor. The hand crank has a low cost, and the motor is convenient to use and has a high degree of automation.

[0049] Further, when the rotating frame 41 rotates around the moving vehicle frame 1 to lower the support wheel 45, the telescopic rod 43 is arranged at an angle with the horizontal plane, and the included angle a between the telescopic rod 43 and the horizontal plane is 6° - 10°.

[0050] Specifically, in this embodiment, when the rotating frame 41 rotates around the moving vehicle frame 1 to lower the support wheel 45, the telescopic rod 43 is arranged at an included angle a with the horizontal plane. The optimal included angle a is 8°, which can provide the best supporting force when the floor grinding robot moves forward, and ensure the stability and smoothness of the movement of the floor grinding robot.

[0051] Further, a plurality of structural holes 413 are provided in a hollow manner in the middle of the rotating frame 41.

[0052] Specifically, in this embodiment, the middle of the rotating frame 41 is provided with structural holes 413 in a hollow manner. This can not only save materials, but also absorb stress through the structural holes 413, which is beneficial to improving the rigidity of the rotating frame 41, preventing the rotating frame 41 from deforming, and having a longer service life.

[0053] Other components and operations of a floor grinding robot with adjustable height of the front support wheels according to an embodiment of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0054] In the description of this specification, the description referring to terms such as "embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present utility model. 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 a suitable manner in any one or more embodiments or examples.

[0055] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and purposes of the present utility model, and the scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A floor grinding robot with adjustable height of the front support wheels, characterized in that: It includes a mobile vehicle frame, a carriage, a grinding disc and a front support wheel mechanism; The carriage is arranged above the mobile vehicle frame, and the grinding disc is arranged below the front end of the mobile vehicle frame. The front support wheel mechanism includes a rotating frame, a lifting housing, a telescopic rod, a driving member and a support wheel; One end of the rotating frame is rotatably connected to the mobile vehicle frame, the lifting housing is fixedly arranged at the other end of the rotating frame, the telescopic rod is slidably arranged in the lifting housing, the top end of the telescopic rod is connected to the driving end of the driving member, and the bottom end of the telescopic rod is rotatably connected to the support wheel.

2. The floor grinding robot with adjustable height of the front support wheel according to claim 1, characterized in that: Rotating connection blocks are respectively arranged on both sides of the front end of the mobile vehicle frame, the rotating connection blocks are provided with hinge holes, rotating shafts are respectively arranged on both sides of the rotating frame, and the rotating shafts are inserted into the hinge holes for installation.

3. The floor grinding robot with adjustable height of the front support wheel according to claim 2, wherein: A disassembly groove is arranged at the edge of the rotating connection block, and the disassembly groove communicates with the hinge hole.

4. The floor grinding robot with adjustable height of the front support wheels according to claim 2, characterized in that: The rotating connection block is provided with a pin hole, the rotating frame is provided with at least two positioning holes, a pin is detachably installed in the pin hole, and the pin can be inserted into the positioning hole.

5. The floor grinding robot with an adjustable height of the front support wheel according to claim 1, wherein: The output end of the driving member is connected with a rotating shaft, the rotating shaft is installed in the lifting housing through a bearing, the rotating shaft is rotatably connected with the lifting housing, an external thread is arranged at the bottom of the rotating shaft, and the top of the telescopic rod is in threaded fit with the external thread of the rotating shaft.

6. The floor grinding robot with adjustable height of the front support wheel according to claim 5, wherein: The telescopic rod is a sleeve, a slider is arranged at the top of the telescopic rod, an internal thread is arranged on the inner wall of the slider, and the internal thread of the slider is in fit with the external thread of the rotating shaft.

7. A floor grinding robot with adjustable height of the front support wheels according to claim 1, characterized in that: Two connecting pieces are arranged at the bottom end of the telescopic rod, and the support wheel is respectively rotatably connected to the two connecting pieces through a rotating shaft.

8. A floor grinding robot with adjustable height of the front support wheel according to claim 1, characterized in that: The driving member is either a hand rocker or an electric motor.

9. The floor grinding robot with adjustable height of the front support wheel according to claim 1, wherein: When the rotating frame rotates around the mobile vehicle frame to lower the support wheel, the telescopic rod is arranged at an angle with the horizontal plane, and the included angle a between the telescopic rod and the horizontal plane is 6° - 10°.

10. The floor grinding robot with adjustable height of the front support wheel according to claim 1, characterized in that: A number of structural holes are arranged in a hollow manner in the middle of the rotating frame.

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