Carrying vehicle and flashlight fast switching driving assembly thereof

Abstract

The utility model discloses a van and flashlight fast switching driving assembly thereof, which comprises a wheel carrier, a driving motor, a reduction gearbox and a driving wheel, the reduction gearbox is detachably arranged on one side of the wheel carrier, the reduction gearbox comprises a gear set, and an output shaft is arranged at the output end of the gear set; the driving motor is mounted on the reduction gearbox, is connected with the input end of the gear set and inputs power into the gear set; the driving wheel can be installed on the wheel frame in a circumferential rotation mode, a first installation hole is formed in the center of the driving wheel, and when the reduction gearbox is installed on the wheel frame, an output shaft of the reduction gearbox is arranged in the first installation hole of the driving wheel in a penetrating mode and connected with the driving wheel in a non-circumferential rotation mode. According to the scheme, the reduction gearbox is directly and detachably installed on the wheel carrier, rapid switching from electric carrying to manual carrying is achieved, the shape of the driving wheel, the shape of the wheel carrier and the like are limited, and therefore a large number of standard parts are saved, cost is low, and the overall structure is simple and reliable.

Description

A transport vehicle and its drive assembly for quick switching between hand and flashlight Technical Field

[0001] This utility model relates to the field of transport vehicle technology, and in particular to a transport vehicle and its drive assembly for quick switching between hand and flashlight. Background Technology

[0002] In existing electric pallet trucks, the drive wheels are typically mounted on a gearbox. The gears in the gearbox mesh with the drive wheel shafts, and the power output from the drive motor is transmitted to the drive wheels after being reduced in speed by the gearbox, thus causing the wheels to rotate and move the vehicle. Because the drive wheels are always connected to the gearbox and motor, if the drive assembly fails, the pallet truck will become completely immobile, easily blocking roads and affecting production efficiency. Summary of the Invention

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a transport vehicle and its drive assembly for quick switching between manual and electric drive, which allows for quick removal of the motor and gearbox to switch to manual operation.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A drive assembly for quick switching of flashlights includes a wheel frame, a drive motor, a gearbox, and a drive wheel. The gearbox is detachably mounted on one side of the wheel frame and includes a gear set with an output shaft at the output end. The drive motor is mounted on the gearbox and connected to the input end of the gear set, inputting power to the gear set. The drive wheel is rotatably mounted on the wheel frame and has a first mounting hole at its center. When the gearbox is mounted on the wheel frame, the output shaft of the gearbox passes through the first mounting hole of the drive wheel and is connected to the drive wheel in a non-rotatable manner.

[0006] Preferably, the output shaft is provided with an external spline at one end for connecting to the drive wheel, and an internal spline is fixedly provided in the first mounting hole of the drive wheel. The output shaft and the drive wheel are connected by the external spline and the internal spline.

[0007] Preferably, the wheel frame includes a first side cover and a second side cover, the upper part of the first side cover is connected to the upper part of the second side cover, the first side cover has a second mounting hole, the second side cover has a third mounting hole, the second mounting hole, the third mounting hole and the first mounting hole of the drive wheel are coaxial, the drive wheel is located between the first side cover and the second side cover, and the two ends of the internal spline of the drive wheel are respectively installed in the second mounting hole and the third mounting hole.

[0008] Preferably, the two ends of the internal spline are supported by a first bearing and a second bearing in the second mounting hole of the first side cover and the third mounting hole of the second side cover, respectively.

[0009] Preferably, the upper end of the first side cover is provided with a first connector, the first side cover is connected to the second side cover through the first connector, the drive wheel is located below the first connector, the side of the first connector near the drive wheel is arranged in an arc shape, and a vertical fifth connector is provided on the first connector.

[0010] Preferably, the drive wheel has a first groove on the side near the second side cover; the second side cover includes a second connector, a third connector and a fourth connector, the lower end of the second connector is connected to the fourth connector through the third connector, the second connector is located on the side of the second side cover away from the first side cover, the third mounting hole is opened on the fourth connector, and the second side cover is connected to the first side cover through the second connector.

[0011] Preferably, the upper surface of the third connector is arc-shaped. When the drive wheel is mounted on the second side cover, the third connector and the fourth connector on the second side cover are located in the first groove of the drive wheel. The gearbox is detachably mounted on the fourth connector of the second side cover by fasteners. The drive motor is mounted on the side of the gearbox away from the wheel frame.

[0012] Preferably, multiple reinforcing ribs are provided between the third and fourth connectors.

[0013] Preferably, the gearbox further includes a housing, the gear set is disposed inside the housing, one end of the output shaft is supported inside the housing, and the other end of the output shaft extends out of the housing.

[0014] A transport vehicle includes a drive assembly for quick flashlight switching as described above.

[0015] This utility model, by adopting the above technical solution, has the following beneficial effects: 1. In this solution, the gearbox is detachably mounted on the wheel frame. During normal use, the gearbox is mounted on the wheel frame, and the drive motor inputs power to the drive wheel through the gearbox, thereby driving the drive wheel to rotate. When the drive motor in the drive assembly malfunctions, the gearbox is removed, and the output shaft of the gearbox is pulled directly out from the first mounting hole of the drive wheel, thus realizing a quick switch from electric to manual handling. 2. In this solution, by limiting the shape of the drive wheel and the shape of the wheel frame, a large number of standard parts are saved, resulting in lower costs and a simple and reliable overall structure. Attached Figure Description

[0016] Figure 1 is a structural schematic diagram of the drive assembly in this utility model;

[0017] Figure 2 is an exploded view of the drive assembly;

[0018] Figure 3 is a cross-sectional structural diagram of the drive assembly.

[0019] Figure label:

[0020] 1. Wheel frame; 11. First side cover; 111. Second mounting hole; 12. Second side cover; 121. Second connector; 122. Third connector; 123. Fourth connector; 124. Reinforcing rib; 125. Third mounting hole; 13. First connector; 14. Fifth connector;

[0021] 2. Drive motor;

[0022] 3. Gearbox; 30. Housing; 31. Gear set; 32. Output shaft; 33. External spline;

[0023] 4. Drive wheel; 41. First groove; 42. Internal spline;

[0024] 5. First bearing;

[0025] 6. Second bearing;

[0026] 7. Oil seal. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] As shown in Figures 1 to 3, this utility model discloses a drive assembly for quick switching of flashlights, including a wheel frame 1, a drive motor 2, a reduction gearbox 3, and a drive wheel 4. The reduction gearbox 3 is detachably installed on one side of the wheel frame 1. The reduction gearbox 3 includes a gear set 31, and the output end of the gear set 31 is provided with an output shaft 32. The drive motor 2 is installed on the reduction gearbox 3 and is connected to the input end of the gear set 31 to input power to the gear set 31. The drive wheel 4 is rotatably installed on the wheel frame 1. A first mounting hole is opened in the center of the drive wheel 4. When the reduction gearbox 3 is installed on the wheel frame 1, the output shaft 32 of the reduction gearbox 3 passes through the first mounting hole of the drive wheel 4 and is connected to the drive wheel 4 in a non-rotatable manner.

[0033] In normal use, the gearbox 3 is installed on the wheel frame 1, and the drive motor 2 inputs power to the drive wheel 4 through the gearbox 3, thereby driving the drive wheel 4 to rotate. When the drive motor 2 in the drive assembly fails, the gearbox 3 is removed, and the output shaft 32 of the gearbox 3 is pulled directly out of the first mounting hole of the drive wheel 4. The drive wheel 4 is still rotatably installed on the wheel frame 1, which can realize the quick switch from electric handling to manual handling.

[0034] In this design, the gearbox 3 is bolted to one side of the wheel frame 1. As shown in Figure 2, the output shaft 32 has an external spline 33 at one end for connecting to the drive wheel 4, and an internal spline 42 is fixedly installed in the first mounting hole of the drive wheel 4. The output shaft 32 and the drive wheel 4 are connected by the external spline 33 and the internal spline 42, and the output shaft 32 and the drive wheel 4 can achieve axial rapid sliding assembly.

[0035] As shown in Figures 1 and 2, the wheel frame 1 includes a first side cover 11 and a second side cover 12. The upper part of the first side cover 11 is connected to the upper part of the second side cover 12 by fasteners. The first side cover 11 has a second mounting hole 111, and the second side cover 12 has a third mounting hole 125. The second mounting hole 111, the third mounting hole 125, and the first mounting hole of the drive wheel 4 are coaxial. The drive wheel 4 is located between the first side cover 11 and the second side cover 12. The two ends of the internal spline 42 of the drive wheel 4 are supported in the second mounting hole 111 of the first side cover 11 and the third mounting hole 125 of the second side cover 12 by the first bearing 5 and the second bearing 6, respectively. Thus, the shape of the wheel frame 1 limits the axial movement of the drive wheel 4, so that the drive wheel 4 can only rotate circumferentially.

[0036] As shown in Figure 2, a first connecting member 13 is integrally formed on the upper end of the first side cover 11. The first side cover 11 is connected to the second side cover 12 through the first connecting member 13. A space for mounting the drive wheel 4 is formed between the first side cover 11, the first connecting member 13, and the second side cover 12. When the drive wheel 4 is mounted on the wheel frame 1, the drive wheel 4 is located below the first connecting member 13. To further reduce the volume of the wheel frame 1, the side of the first connecting member 13 near the drive wheel 4 is arc-shaped. More specifically, the shape of the side of the first connecting member 13 near the drive wheel 4 should be adapted to the drive wheel 4 and should not hinder the rotation of the drive wheel 4. A vertical fifth connecting member 14 is provided on the first connecting member 13.

[0037] As shown in Figures 2 and 3, the drive wheel 4 has a first groove 41 on the side near the second side cover 12. The second side cover 12 includes an integrally formed second connector 121, a third connector 122, and a fourth connector 123. The lower end of the second connector 121 is connected to the fourth connector 123 through the third connector 122. To increase the strength of the second side cover 12, multiple reinforcing ribs 124 are provided between the third connector 122 and the fourth connector 123. The second connector 121 is located on the side of the second side cover 12 away from the first side cover 11. The third mounting hole 125 is opened on the fourth connector 123, and the second side cover 12 is connected to the first side cover 11 through the second connector 121. The upper surface of the third connector 122 is arc-shaped. More specifically, the upper surface of the third connector 122 only needs to be adapted to the drive wheel 4 and not hinder the rotation of the drive wheel 4. Thus, when the drive wheel 4 is mounted on the second side cover 12, the third connector 122 and the fourth connector 123 on the second side cover 12 are located within the first groove 41 of the drive wheel 4, thereby significantly reducing the volume of the drive assembly. To facilitate the disassembly and assembly of the drive motor 2 and the gearbox 3, the drive motor 2 is mounted on the side of the gearbox 3 away from the wheel frame 1, which also prevents the drive motor 2 from interfering with the drive wheel 4.

[0038] The gearbox 3 also includes a housing 30, which is detachably mounted on the fourth connector 123 of the second side cover 12 by fasteners; the gear set 31 is disposed in the housing 30, one end of the output shaft 32 is supported in the housing 30, the other end of the output shaft 32 extends out of the housing 30, and the external spline 33 is disposed at the end of the output shaft 32 that extends out of the housing 30.

[0039] In this design, the gearbox 3 is pre-installed. It is mounted on the wheel frame 1 using fasteners. The drive wheel 4 is positioned against the wheel frame 1 via the first bearing 5 and the second bearing 6. The first side cover 11 and the second side cover 12 of the wheel frame 1 are then secured with fasteners. Electric handling can be converted to manual handling by removing the drive motor 2 and the gearbox 3, and pulling out the output shaft 32 of the gearbox 3. Furthermore, the user does not need to pull the gearbox 3 and the motor 2 during manual handling, making it more labor-saving. Moreover, the overall structure of this drive assembly is extremely simplified. The limiting of the drive wheel 4 relies on the shape of the wheel frame 1 itself, the first bearing 5, and the second bearing 6, which saves on the use of many standard parts and effectively reduces costs.

[0040] This utility model also discloses a transport vehicle, including a drive assembly for quick switching of flashlight as described above, wherein the drive assembly is fixedly connected to a handle on the transport vehicle via a fifth connector 14, thereby enabling the steering of the drive assembly to be controlled by the handle.

[0041] All features described in the specification, appended claims and drawings, whether individually or in any combination thereof, are essential features of this utility model.

[0042] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, alterations, deletions of some features, additions of features, or recombinations of features to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the innovative principles of the present invention shall still fall within the scope of the technical solutions of the present invention.

Claims

1. A drive assembly for quick switching of flashlights, comprising a wheel frame (1), a drive motor (2), a reduction gearbox (3), and a drive wheel (4), characterized in that, The gearbox (3) is detachably mounted on one side of the wheel frame (1). The gearbox (3) includes a gear set (31), and the output end of the gear set (31) is provided with an output shaft (32). The drive motor (2) is mounted on the gearbox (3). The drive motor (2) is connected to the input end of the gear set (31) and inputs power into the gear set (31). The drive wheel (4) is rotatably mounted on the wheel frame (1). The center of the drive wheel (4) has a first mounting hole. When the gearbox (3) is mounted on the wheel frame (1), the output shaft (32) of the gearbox (3) passes through the first mounting hole of the drive wheel (4) and is connected to the drive wheel (4) in a non-rotatable manner.

2. The drive assembly for quick switching of flashlights according to claim 1, characterized in that, The output shaft (32) is provided with an external spline (33) at one end for connecting to the drive wheel (4), and an internal spline (42) is fixedly provided in the first mounting hole of the drive wheel (4). The output shaft (32) and the drive wheel (4) are connected by the external spline (33) and the internal spline (42).

3. The drive assembly for quick switching of flashlights according to claim 2, characterized in that, The wheel frame (1) includes a first side cover (11) and a second side cover (12). The upper part of the first side cover (11) is connected to the upper part of the second side cover (12). The first side cover (11) has a second mounting hole (111), and the second side cover (12) has a third mounting hole (125). The second mounting hole (111), the third mounting hole (125), and the first mounting hole of the drive wheel (4) are coaxial. The drive wheel (4) is located between the first side cover (11) and the second side cover (12). The two ends of the internal spline (42) of the drive wheel (4) are respectively installed in the second mounting hole (111) and the third mounting hole (125).

4. The drive assembly for quick switching of flashlights according to claim 3, characterized in that, The two ends of the internal spline (42) are supported by the first bearing (5) and the second bearing (6) in the second mounting hole (111) of the first side cover (11) and the third mounting hole (125) of the second side cover (12).

5. The drive assembly for quick switching of flashlights according to claim 3, characterized in that, The upper end of the first side cover (11) is provided with a first connector (13). The first side cover (11) is connected to the second side cover (12) through the first connector (13). The drive wheel (4) is located below the first connector (13). The side of the first connector (13) near the drive wheel (4) is arranged in an arc shape. The first connector (13) is provided with a vertical fifth connector (14).

6. The drive assembly for quick switching of flashlights according to claim 3, characterized in that, The drive wheel (4) has a first groove (41) on the side near the second side cover (12); the second side cover (12) includes a second connector (121), a third connector (122) and a fourth connector (123). The lower end of the second connector (121) is connected to the fourth connector (123) through the third connector (122). The second connector (121) is located on the side of the second side cover (12) away from the first side cover (11). The third mounting hole (125) is opened on the fourth connector (123). The second side cover (12) is connected to the first side cover (11) through the second connector (121).

7. The drive assembly for quick switching of flashlights according to claim 6, characterized in that, The upper surface of the third connector (122) is arc-shaped. When the drive wheel (4) is installed on the second side cover (12), the third connector (122) and the fourth connector (123) on the second side cover (12) are located in the first groove (41) of the drive wheel (4). The gearbox (3) is detachably installed on the fourth connector (123) of the second side cover (12) by fasteners. The drive motor (2) is installed on the side of the gearbox (3) away from the wheel frame (1).

8. The drive assembly for quick switching of flashlights according to claim 7, characterized in that, Multiple reinforcing ribs (124) are provided between the third connector (122) and the fourth connector (123).

9. The drive assembly for quick switching of flashlights according to claim 1, characterized in that, The gearbox (3) also includes a housing (30), a gear set (31) is set inside the housing (30), one end of the output shaft (32) is supported inside the housing (30), and the other end of the output shaft (32) extends out of the housing (30).

10. A transport vehicle, characterized in that, Includes a drive assembly for quick switching of flashlights as described in any one of claims 1-9.

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