Draw bar

Abstract

The utility model discloses a draw bar which comprises a handle, a steering rod and a controller. The handle is a rotary handle and is connected with the steering rod; the steering rod is rotationally connected with the vehicle body; the controller is in communication connection with the handle and the steering rod at the same time and used for controlling the speed of the vehicle body according to the rotating signal of the handle and controlling steering of the vehicle body according to the rotating angle of the steering rod. The traction rod controls the vehicle body speed through a rotating signal of the rotating handle and controls the vehicle body to steer through rotation of the steering rod, a user can operate the handle with one hand to continuously control the speed according to self operation, and meanwhile the steering rod is driven to rotate in the operation direction when the handle is operated, so that the vehicle body follows the operation direction of the user; the single-hand intelligent control of the operation speed and direction of a user can be met, intelligence and operation convenience are achieved, and the control defect that existing direction operation such as a button cannot intelligently follow the operation requirement is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to a vehicle body drive control device technical field especially relates to a draw bar. BACKGROUND

[0002] At present, the vehicle body generally adopts driving or non-driving drawbar driving mode, such as cleaning machine, mower and the like adopt the driving mode to drive control vehicle body movement, through the driving mode to control vehicle body movement, cannot flexibly convert the working scene, for example, in the cleaning process, the cleaner encounters the scene that cannot be automatically cleaned, needs to get off the car and cleans, for example, when using the high-pressure water gun to wash the ground in a place, the cleaner needs to stop the car and take the high-pressure water gun to work in the area to be cleaned, and then returns to start the vehicle, if the cleaning area is too large, the back-and-forth time of the cleaner greatly increases the physical consumption and operation time.

[0003] For the cleaning vehicle, mobile dining car, carrier vehicle, pallet car, handcart and the like, the current non-driving force mode such as handle or drawbar is adopted to control vehicle body movement, and a large physical strength of the user is needed in the process of controlling vehicle body movement, and the process of controlling cannot be smoothly reversed, turned and the like, the user needs very large physical strength, and inertia, manual control turning and the like also need to be overcome.

[0004] And at present, in order to solve the above problems, the prior art proposes to adopt an integrated electric rod, and the button is adopted to control forward movement, stop and the like. The above electric rod adopts limited low, medium and high gears to control, and cannot continuously control the speed and the turning of the intelligent following operation demand, that is, the speed and the turning intelligent control cannot be realized according to the operation demand of the user to control the movement of the vehicle body (such as the speed and direction demand of the human operation process when cleaning and moving the dining car). At the same time, the above electric rod also cannot be operated by one hand to meet the demand of operating by the other hand. SUMMARY

[0005] In order to further improve the intelligence and the operation convenience of the vehicle body movement, and more meet the speed and direction one-handed intelligent control of the user operation, the utility model provides a drawbar.

[0006] In order to achieve the above purpose, the utility model provides a drawbar for controlling the speed and direction of the vehicle body, characterized in that: the drawbar comprises a handle, a steering rod and a controller; the handle is a rotary handle and is connected with the steering rod; the steering rod is rotationally connected with the vehicle body; the controller is in communication connection with the handle and the steering rod, and is used for controlling the speed of the vehicle body according to the rotary signal of the handle and controlling the turning of the vehicle body according to the rotation angle of the steering rod.

[0007] Optionally, the handle comprises: a rotating handle and a first angle sensor; the rotating handle is used to generate a rotating signal of the handle; the rotating signal comprises: a rotating angle size; the first angle sensor is used to measure the rotating angle size of the rotating handle and transmit to the controller to control the speed of the vehicle body.

[0008] Optionally, the rotating signal further comprises: a rotating direction; the first angle sensor is further used to measure the rotating direction of the rotating handle, and transmit the rotating direction of the rotating handle to the controller, and the controller controls the direction of the vehicle body to be forward or backward according to the rotating direction.

[0009] Optionally, the steering rod comprises: a connecting rod and a second angle sensor; the connecting rod is connected with the handle and is rotationally connected with the vehicle body; the second angle sensor is used to measure the rotation angle of the connecting rod and the vehicle body and transmit to the controller, and the controller controls the steering of the vehicle body according to the rotation angle of the connecting rod.

[0010] Optionally, the steering rod further comprises: a rotating shaft box, a rotating shaft and a mounting bracket; the connecting rod is fixedly connected with the rotating shaft box, the rotating shaft is arranged on the rotating shaft box, the second angle sensor is arranged on the rotating shaft, and the rotating shaft is mounted on the mounting bracket, and the mounting bracket is mounted on the vehicle body.

[0011] Optionally, at least one rotating shaft is arranged on the rotating shaft box, wherein one of the rotating shafts is mounted on the mounting bracket through a bearing locking nut and a flange bearing.

[0012] Optionally, the other rotating shaft is a damping rotating shaft, which is used to increase the rotation resistance between the steering rod 2 and the mounting bracket.

[0013] Optionally, the connecting rod is arranged in an arc shape near the handle 1 end, so that the handle is in front of the human body.

[0014] Optionally, the traction rod further comprises: a start-stop control unit, the start-stop control unit is used to control the working state of the traction rod, and the working state comprises: a starting state and a stopping state.

[0015] Optionally, the traction rod further comprises: a driving wheel, the driving wheel is mounted on the vehicle body or the steering rod through a fixing structure.

[0016] The utility model has the following beneficial effects:

[0017] The controller of the traction rod controls the speed of the vehicle body through the rotation signal of the rotating handle and controls the steering of the vehicle body through the rotation of the steering rod, in the operation process, the user can operate the handle with one hand to continuously control the speed according to the self-operation, and the steering rod is driven to rotate along with the operation direction when the handle is operated, so that the vehicle body follows the operation direction of the user, the speed and direction of the operation of the user can be controlled with one hand, the intelligence and the operation convenience are achieved, and the control defects that the direction operation of the existing button cannot intelligently follow the operation requirement are overcome.

[0018] The handle of the traction rod can also control the forward or backward direction of the vehicle body through the rotation direction, and the convenience of the vehicle body control is further improved.

[0019] The connecting rod of the traction rod is arranged in an arc shape at the handle end, so that the handle is in front of the human body, and the traction rod is convenient to operate and control.

[0020] The traction rod can also be provided with a driving wheel, the movement speed and direction of the vehicle body can be intelligently controlled for the vehicle body without a driving system, and physical effort is saved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of an embodiment of the traction rod of the utility model;

[0022] Figure 2 is an exploded structural schematic view of an embodiment of the handle of the utility model.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] 1, handle; 11, rotating handle; 12, first angle sensor; 13, mounting shaft; 14, reset structure; 2, steering rod; 21, connecting rod; 22, second angle sensor; 23, rotating shaft box; 24, rotating shaft; 25, mounting bracket. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purpose, features and advantages of the utility model more obvious and easy to understand, the specific embodiments of the utility model are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, therefore, the utility model is not limited by the following disclosed specific embodiments.

[0026] REFERENCE Figure 1A towing bar is installed on a vehicle body for controlling the speed and direction of the vehicle body, comprising: a handle 1, a steering bar 2 and a controller (not shown), the handle 1 is connected with the steering bar 2; the steering bar is connected with the vehicle body; the controller is communicatively connected with the handle and the steering bar, for controlling the speed of the vehicle body according to the signal of the handle and controlling the steering of the vehicle body according to the signal of the steering bar. The controller is installed on the towing bar or the vehicle body.

[0027] The handle 1 is a rotary handle for controlling the speed of the vehicle body by rotation; the steering bar 2 is rotatably connected with the vehicle body for controlling the steering of the vehicle body by rotation; that is, the controller controls the speed of the vehicle body according to the rotation signal of the rotary handle and controls the steering of the vehicle body according to the rotation angle of the steering bar.

[0028] Referring to Figure 2 The rotary handle 1 comprises: a rotary handle 11, a first angle sensor 12, a mounting shaft 13 and a reset structure 14; wherein the rotary handle 11 is installed on the mounting shaft 13 for generating the rotation signal of the handle and can rotate on the mounting shaft 13; the first angle sensor 12 is arranged on the rotary handle 11 or the mounting shaft 13 for measuring the rotation angle of the rotary handle 11; the mounting shaft 13 is fixedly connected with the steering bar 2, and the rotary handle 11 is reset with the mounting shaft 13 through the reset structure 14; in this embodiment, the reset structure 14 is a reset spring.

[0029] Further, the first angle sensor 12 is communicatively connected with the controller, the first angle sensor 12 transmits the rotation angle of the rotary handle 11 to the controller, and the controller controls the speed of the vehicle body according to the rotation angle.

[0030] Further, the first angle sensor 12 is further used for measuring the rotation direction of the rotary handle 11 and transmitting the rotation direction of the rotary handle 11 to the controller, and the controller controls the direction of the vehicle body as forward or backward according to the rotation direction. Alternatively, a forward-backward button is used to control the direction of the vehicle body as forward or backward, specifically, the forward-backward button transmits the button state to the controller, and the controller controls the direction of the vehicle body as forward or backward according to the button state.

[0031] Further, the first angle sensor is a Hall sensor, which is installed on the rotating handle 11 or the mounting shaft 13, and measures the rotating angle and rotating direction of the rotating handle 11 by sensing the size and direction of the magnetic field of a magnet installed on the rotating handle 11 or the mounting shaft 13.

[0032] With reference to Figure 1 The steering rod 2 comprises a connecting rod 21 and a second angle sensor 22. The connecting rod 21 is connected with the handle 1 and is rotationally connected with the vehicle body. The second angle sensor 22 is used to measure the rotating angle of the connecting rod 21. The second angle sensor 22 is in communication connection with the controller and transmits the rotating angle of the connecting rod 21 to the controller, and the controller controls the steering of the vehicle body according to the rotating angle of the connecting rod 21.

[0033] The steering rod 2 further comprises a rotating shaft box 23, a rotating shaft 24 and a mounting bracket 25. The connecting rod 21 is fixedly connected with the rotating shaft box 23, the rotating shaft 24 is arranged on the rotating shaft box 23, the connecting rod 21 and the rotating shaft box 23 are rotated relative to the vehicle body through the rotating shaft 24, the rotating shaft 24 is installed on the mounting bracket 25, the mounting bracket 25 is installed on the vehicle body, the connecting rod 21 and the rotating shaft box 23 are rotationally connected with the vehicle body through the rotating shaft 24 and the mounting bracket 25, and the second angle sensor 22 is installed on the rotating shaft 24.

[0034] At least one rotating shaft 24 is arranged on the rotating shaft box 23, one of the rotating shafts 24 is installed on the mounting bracket 25 through a bearing locking nut and a flange bearing, the second angle sensor 22 and the bearing locking nut are arranged on the rotating shaft 24, and the flange bearing is arranged on the mounting bracket 25.

[0035] Further, the other rotating shaft 24 is a damping rotating shaft, which is used to increase the rotating resistance between the steering rod 2 and the mounting bracket 25, so as to avoid loosening when the traction rod is operated.

[0036] Further, the connecting rod 21 is arranged in an arc shape near the handle 1, so that the handle 1 is in front of the human body, and the traction rod is convenient to operate and control.

[0037] Further, the traction rod further comprises a start-stop control unit, which is used to control the working state of the traction rod. The working state includes a starting state and a stopping state.

[0038] Further, the start-stop control unit is a start-stop button, when the start-stop button controls the traction rod to be in a start state, the user can control the speed and direction of the vehicle body through the traction rod; when the start-stop button controls the traction rod to be in a stop state, the traction rod cannot control the speed and direction of the vehicle body.

[0039] In another embodiment, the traction rod further comprises: a driving wheel mounted on the vehicle body or the steering rod 2 through a fixing structure, the controller is in communication connection with the driving wheel, and the speed and direction of the vehicle body movement are controlled by controlling the driving wheel. For the vehicle body without a driving system, the intelligent control of the speed and direction of the vehicle body movement is realized by adding the driving wheel and the traction rod, and physical labor is saved.

[0040] The traction rod is rotatably mounted on the vehicle body through the mounting bracket 25, the user determines whether the traction rod is started or stopped through the start-stop button, when in a start state, that is, the vehicle body movement is controlled through the traction rod, the user rotates the rotating handle 11 of the handle 1, the rotating angle and rotating direction of the rotating handle 11 are measured through the first angle sensor 12, the controller is connected with the first angle sensor 12, the controller controls the vehicle body to advance or retreat (or the advancing or retreating direction control of the vehicle body is realized through the advancing or retreating button) and the advancing or retreating speed according to the rotating direction and rotating angle of the rotating handle 11 measured by the first angle sensor 12, and is reset through the reset assembly. At the same time, the user applies a steering force to the handle 1 or the steering rod, so that the steering rod 2 rotates relative to the vehicle body, the steering angle of the steering rod 2 is measured through the second angle sensor, so that the steering of the vehicle body is controlled. At the same time, the traction rod of the utility model can also increase the driving wheel, for the vehicle body without a driving system, the movement control of the traction rod is realized by mounting the driving wheel on the vehicle body or the mounting bracket.

[0041] The technical features of the above embodiments can be combined in any way, in order to make the description concise, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, it should be considered that it is within the scope of the description.

[0042] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the utility model. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. A tow bar for controlling the speed and direction of a vehicle body, characterised in that, The utility model relates to a kind of steering handlebar, including: Handle (1), steering rod (2) and controller;The handle (1) is rotary handle (1), and is connected with the steering rod (2);The steering rod (2) is rotatably connected with the vehicle body;The controller is communicatively connected with the handle (1) and the steering rod (2), for controlling the speed of the vehicle body according to the rotation signal of the handle (1) and controlling the steering of the vehicle body according to the rotation angle of the steering rod (2); The handle (1) includes: rotating handle (11) and first angle sensor (12);The rotating handle (11) is used to generate the rotation signal of the handle (1);The rotation signal includes: rotation angle size;The first angle sensor (12) is used to measure the rotation angle size of the rotating handle (11) and transmit to the controller to control the speed of the vehicle body;The steering rod (2) includes: connecting rod (21) and second angle sensor (22);The connecting rod (21) is connected with the handle (1), and is rotatably connected with the vehicle body;The second angle sensor (22) is used to measure the rotation angle of the connecting rod (21) and the vehicle body and transmit to the controller, and the controller controls the steering of the vehicle body according to the rotation angle of the connecting rod (21).

2. The draw bar of claim 1 wherein, The rotation signal also includes: rotation direction;The first angle sensor (12) is also used to measure the rotation direction of the rotating handle (11), and the rotation direction of the rotating handle (11) is transmitted to the controller, and the controller controls the direction of the vehicle body as advancing or retreating according to the rotation direction.

3. The draw bar of claim 2 wherein, The steering rod (2) further includes: shaft box (23), shaft (24) and mounting bracket (25);The connecting rod (21) is fixedly connected with the shaft box (23), the shaft (24) is arranged on the shaft box (23), the second angle sensor (22) is arranged on the shaft (24), the shaft (24) is mounted on the mounting bracket (25), and the mounting bracket (25) is mounted on the vehicle body.

4. The draw bar of claim 3 wherein, At least one shaft (24) is arranged on the shaft box (23), one of the shafts (24) is mounted on the mounting bracket (25) through a bearing locking nut and a flange bearing.

5. The draw bar of claim 4 wherein, Another shaft (24) is a damping shaft, used to increase the rotation resistance between the steering rod (2) and the mounting bracket (25).

6. The draw bar of claim 1 wherein, The connecting rod (21) is arranged in arc shape near the handle (1) end, so that the handle (1) is in front of human body.

7. The draw bar of claim 1 wherein, The traction rod further includes: start-stop control unit, the start-stop control unit is used to control the working state of the traction rod, and the working state includes: starting state and stopping state.

8. The draw bar of claim 1 wherein, The traction rod further includes: drive wheel, the drive wheel is mounted on the vehicle body or the steering rod (2) through fixing structure.

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