An electric controlled brake system for a motorhome

Abstract

The present invention discloses an electric control brake system for a motorhome, comprising: a tractor assembly, at least one hydraulic brake assembly and a control assembly, wherein the tractor assembly comprises a tractor, which is arranged between the motorhome and the tractor, and one end of which is hinged to the tractor and the other end is movably connected to the motorhome, the hydraulic brake assembly is connected to the wheels of the motorhome, the control assembly comprises at least one control component and a displacement sensor, the control component is connected to the motorhome and connected to the hydraulic brake assembly, the displacement sensor has a control end and a sensing end, the control end of the displacement sensor is electrically connected to the control component, and the sensing end is arranged relative to the tractor, and is used to detect the displacement change of the tractor, and convert the displacement change into an electrical signal and transmit it to the control component, so that the control component controls the hydraulic brake assembly to drive the wheels of the motorhome to brake. The present invention can solve the problem that the brake components of the motorhome lack interrelated connections, which leads to inconvenience in use.

Description

Technical Field

[0001] The present invention relates to the technical field of recreational vehicle equipment, and in particular to an electric-controlled brake system for a recreational vehicle. Background Art

[0002] With the development of science and technology, RVs have gradually come into people's view. When the existing towed RVs need to slow down and brake while driving, if only the tractor brakes, the traction device may be damaged due to the squeezing of the RV part under the action of inertia. If only the RV brakes, the traction device may also be broken due to the pulling of the tractor.

[0003] At present, in order to solve the major safety hazards caused by the above two situations, a device for relieving the braking pressure of the traction device can be added to improve the safety performance of the RV during braking. For example, the Chinese utility model patent with application number: CN201920471629.2 is named: A braking device for a RV, including a brake-assisting wheel, which is fixedly arranged at the lower end of a support rod, a brake member through hole is provided inside the support rod, the upper end of the support rod is welded to the lower edge of the connecting rod, and a through hole matching the brake member through hole is also provided inside the connecting rod, and the welding point between the support rod and the connecting rod is surrounded by a buffer mechanism. The present invention applies the brake control components on the tractor and the RV to the brake-assisting wheels via connecting rods and support rods, so that when the tractor brakes, the brake-assisting wheels assist the tractor in braking at the same time, and when the RV brakes, the brake-assisting wheels assist the RV in braking at the same time, thereby avoiding the consequences of oppression on the traction device between the tractor and the RV and ultimate damage to the traction device. In this structure, the brake components of the brake-assisting wheels cooperate with the brake components of the tractor and the RV respectively to achieve the purpose of braking, but the above three brake systems are respectively controlled by separate control components, which not only has a dispersed structure but also a complicated operation process.

[0004] Therefore, there is an urgent need for an electric-controlled brake system for RVs to solve the problem in the prior art that the brake components of the tractor, RV and brake-assisting wheel are dispersed and lack interconnected connections, thus causing inconvenience in use. Summary of the invention

[0005] In view of this, it is necessary to provide an electric-controlled brake system for RVs to solve the technical problem in the prior art that the brake parts of the tractor, RV and auxiliary brake wheel are dispersed and lack interconnected connections, resulting in inconvenience in use.

[0006] In order to achieve the above technical objectives, the technical solution of the present invention provides an electric-controlled brake system for a motorhome, comprising:

[0007] A tractor assembly, comprising a tractor, wherein the tractor is arranged between the RV and the tractor, and one end of the tractor is hinged to the tractor and the other end is movably connected to the RV;

[0008] at least one hydraulic brake assembly connected to a wheel of the RV;

[0009] A control component includes at least one control component and a displacement sensor. The control component is connected to the RV and the hydraulic brake component. The displacement sensor has a control end and a sensing end. The control end of the displacement sensor is electrically connected to the control component, and the sensing end is arranged relative to the tractor, for detecting the displacement change of the tractor and converting the displacement change into an electrical signal and transmitting it to the control component, so that the control component controls the hydraulic brake component to drive the wheels of the RV to brake.

[0010] Furthermore, the traction device assembly also includes a bracket, which is connected to the RV and has a slot relative to the traction vehicle. The traction device can be slidably inserted into the slot. The fixed end of the displacement sensor is connected to the bracket and the sensing end is arranged relative to the slot.

[0011] Furthermore, the tractor assembly also includes a spring, which is arranged along the guide of the slot, with one end of the spring connected to the bottom inner wall of the slot and the other end connected to the tractor.

[0012] Furthermore, the hydraulic brake assembly includes a brake disc, at least one brake caliper and at least one driving member, the brake disc is coaxially arranged with the wheel of the RV and connected to the wheel of the RV, the brake caliper and the brake disc are spaced apart from each other and can be movably connected to the brake disc, the driving member includes a fixed end and a movable end, the fixed end of the driving member is connected to the RV, and the movable end is connected to the brake caliper, for driving the brake caliper to move closer to or away from the brake disc to achieve braking of the wheels of the RV.

[0013] Furthermore, the driving component includes an oil pipe and a brake pump, one end of the oil pipe is connected to the interior of the brake caliper, the brake pump is connected to the RV and connected to the other end of the oil pipe, and the brake pump, under the control of the control component, presses the oil in the brake pump into the brake caliper to make the brake caliper move closer to the brake disc.

[0014] Furthermore, the interior of the brake pump is hollow and has at least one slide groove. The control component includes a piston and a push rod. The piston is arranged in a one-to-one correspondence with the slide groove. The piston can be movably inserted into the slide groove and abuts against the inner wall of the slide groove. One end of the push rod can be slidably inserted into the slide groove and connected to the piston.

[0015] Furthermore, the control component also includes a motor, the connection terminal of the motor is electrically connected to the output end of the displacement sensor, and the output shaft of the motor is connected to the other end of the push rod, for driving the push rod and the piston to slide along the guide of the slide groove.

[0016] Furthermore, the control component also includes a rocker arm, one end of which is provided with a shaft hole along the axis of the output shaft of the motor, and one end of the rocker arm is sleeved on the output shaft of the motor through the shaft hole, and the other end is hinged to the other end of the push rod.

[0017] Furthermore, a first rotating hole is opened at the other end of the push rod in a direction perpendicular to its axis, and the control member also includes a rotating shaft, which is inserted into the first rotating hole and connected to the other end of the rocker arm.

[0018] Furthermore, a groove is provided at the other end of the rocker arm, and a second rotating hole is provided on the outer wall of the other end of the rocker arm along the guide of the first rotating hole. The second rotating hole passes through the rocker arm and is connected with the groove. The other end of the push rod is inserted in the groove, and the rotating shaft passes through the second rotating hole and is inserted in the first rotating hole.

[0019] Compared with the prior art, the beneficial effects of the present invention include: a tractor is arranged between the RV and the towing vehicle, for connecting the RV and the tractor, at least one hydraulic brake assembly is connected to the wheels of the RV, and is connected to the tractor through a control component and a displacement sensor, the sensing end of the displacement sensor is arranged relative to the tractor, for detecting the displacement change of the tractor, the control end of the displacement sensor is electrically connected to the control component, and the displacement change is converted into an electrical signal through the displacement sensor and transmitted to the control component, such a structure associates and connects the tractor brake components and the RV brake components, and the displacement change caused by the tractor hitting the RV when the tractor brakes is used is transmitted to the control component through the displacement sensor to control the hydraulic brake assembly to drive the RV wheel brake, which can solve the technical problem in the prior art that the tractor brake components, the RV brake components and the auxiliary brake wheel brake components are scattered and lack of interrelated connection, thus causing inconvenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional schematic diagram of an electric-controlled brake system for a motorhome provided by an embodiment of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of another perspective of an electric-controlled brake system for a motorhome provided by an embodiment of the present invention;

[0022] Figure 3 is a three-dimensional schematic diagram of the connection between the hydraulic brake assembly and the control assembly provided by an embodiment of the present invention;

[0023] Figure 4 is a three-dimensional schematic diagram of the connection between the control element and the driving element provided by an embodiment of the present invention;

[0024] Figure 5 yes Figure 4 A local enlarged schematic diagram of the middle A;

[0025] Figure 6 It is a cross-sectional view of the connection between the push rod, the piston, the brake pump and the oil pipe provided in the embodiment of the present invention;

[0026] Figure 7 It is a cross-sectional view of the connection between the bracket, the tractor, the spring and the displacement sensor provided in the embodiment of the present invention. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0028] See also Figure 1 , Figure 3 Figure 7 The present invention provides an electric-controlled brake system for a motorhome, comprising: a tractor assembly 1, at least one hydraulic brake assembly 2 and a control assembly 3. The tractor assembly 1 comprises a tractor 11, which is arranged between the motorhome and the tractor, and one end of the tractor 11 is hinged to the tractor and the other end is movably connected to the motorhome. The hydraulic brake assembly 2 is connected to the wheels of the motorhome. The control assembly 3 comprises at least one control component 31 and a displacement sensor 32. The control component 31 is connected to the motorhome and connected to the hydraulic brake assembly 2. The displacement sensor 32 has a control end and a sensing end. The control end of the displacement sensor 32 is electrically connected to the control component 31, and the sensing end is arranged relative to the tractor 11, for detecting the displacement change of the tractor 11, and converting the displacement change into an electrical signal and transmitting it to the control component 31, so that the control component 31 controls the hydraulic brake assembly 2 to drive the wheels of the motorhome to brake.

[0029] It can be understood that the tractor 11 is arranged between the RV and the towing vehicle for connecting the RV and the towing vehicle. At least one hydraulic brake assembly 2 is connected to the wheel of the RV and is connected to the tractor 11 through a control component 31 and a displacement sensor 32. The sensing end of the displacement sensor 32 is arranged relative to the tractor 11 for detecting the displacement change of the tractor 11. The control end of the displacement sensor 32 is electrically connected to the control component 31, and the displacement change is converted into an electrical signal through the displacement sensor 32 and transmitted to the control component 31. Such a structure associates and connects the tractor brake components and the RV brake components. When the tractor brakes, the displacement change caused by the tractor 11 hitting the RV is transmitted to the control component 31 through the displacement sensor 32 to control the hydraulic brake assembly 2 to drive the wheel brake of the RV.

[0030] Furthermore, the displacement sensor 32 in the present invention is an analog structural sensor, which detects the displacement change of the traction device 11, converts the displacement signal into an electrical signal, and transmits it to the control component 31 to control the control component 31 and the hydraulic brake assembly 2, thereby realizing the interconnected connection between the tractor brakes and the RV brake components. The displacement sensor 32 here is a prior art and will not be elaborated on in detail.

[0031] like Figure 7 As shown, the tractor assembly 1 also includes a bracket 12, which is connected to the RV and has a slot 121 relative to the tractor. The tractor 11 can be slidably inserted in the slot 121. The fixed end of the displacement sensor 32 is connected to the bracket 12, and the sensing end is set relative to the slot 121.

[0032] It can be understood that one end of the tractor 11 in the present invention is used to achieve a sliding connection between the tractor 11 and the RV by cooperating with the slot 121.

[0033] Furthermore, when the tractor 11 moves closer to the RV due to the braking of the towing vehicle, the displacement sensor 32 operates and converts it into an electrical signal to control the hydraulic brake assembly 2 to drive the RV to brake.

[0034] like Figure 7 As shown, the tractor assembly 1 further includes a spring 13 , which is arranged along the guide of the slot 121 , with one end of the spring 13 connected to the bottom inner wall of the slot 121 and the other end connected to the tractor 11 .

[0035] It can be understood that when the RV brake system completes braking, the elastic force of the spring 13 is used to drive the tractor 11 to reset and move the tractor 11 away from the RV. At this time, the displacement sensor 32 transmits an electrical signal, causing the hydraulic brake assembly 2 to stop driving the RV brake.

[0036] like Figures 1 to 4As shown, the hydraulic brake assembly 2 includes a brake disc 21, at least one brake caliper 22 and at least one driving member 23. The brake disc 21 is coaxially arranged with the wheel of the RV and connected to the wheel of the RV. The brake caliper 22 and the brake disc 21 are spaced apart from each other and can be movably connected to the brake disc 21. The driving member 23 includes a fixed end and a movable end. The fixed end of the driving member 23 is connected to the RV, and the movable end is connected to the brake caliper 22, which is used to drive the brake caliper 22 to move closer to or away from the brake disc 21 to achieve braking of the wheels of the RV.

[0037] It can be understood that the brake disc 21 and the brake caliper 22 are connected in a matching manner, and the brake caliper 22 is clamped on the brake disc 21 under the drive of the driving member 23 to achieve the braking of the wheel. This is the existing technology and will not be elaborated in detail.

[0038] like Figure 3 As shown, the driving member 23 includes an oil pipe 231 and a brake pump 232. One end of the oil pipe 231 is connected to the interior of the brake caliper 22. The brake pump 232 is connected to the RV and is connected to the other end of the oil pipe 231. Under the control of the control member 31, the brake pump 232 presses the brake oil in the brake pump 232 into the brake caliper 22 to make the brake caliper 22 move closer to the brake disc 21.

[0039] It can be understood that in the present invention, the brake pump 232 is connected to the brake caliper 22 through the oil pipe 231 to form a hydraulic brake assembly 2. The brake pump 232 presses the brake oil into the brake caliper 22 through the oil pipe 231 to drive the brake caliper 22 to engage with the brake disc 21.

[0040] like Figure 6 As shown, the interior of the brake pump 232 is hollow and has at least one slide groove. The control member 31 includes a piston 311 and a push rod 312. The piston 311 is arranged in a one-to-one correspondence with the slide groove. The piston 311 can be movably built into the slide groove and abut against the inner wall of the slide groove. One end of the push rod 312 can be slidably inserted into the slide groove and connected to the piston 311.

[0041] It can be understood that the cooperation of the piston 311, the push rod 312 and the slide groove in the present invention forms a structure similar to a piston pump. The movement of the push rod 312 drives the piston 311 to move along the guide of the slide groove, so that the brake oil in the brake pump 232 is pressed into the oil pipe 231 to the brake caliper 22, or is drawn into the brake pump 232 by the brake caliper 22 through the oil pipe 231, so as to realize the control of the hydraulic brake assembly 2.

[0042] like Figure 3 , Figure 4 and Figure 5As shown, the control member 31 also includes a motor 313, the connection terminal of the motor 313 is electrically connected to the output end of the displacement sensor 32, and the output shaft of the motor 313 is connected to the other end of the push rod 312, for driving the push rod 312 and the piston 311 to slide along the guide of the slide groove.

[0043] Specifically, in the present invention, the push rod 312 and the piston 311 are driven by a servo motor to achieve guided sliding along the slide groove.

[0044] Furthermore, the motor 313 here can also be replaced by a linear motion mechanism, the extended end of the linear motion mechanism is connected to the other end of the push rod 312, driving the push rod 312 and the piston 311 to slide along the guide of the slide groove, which will not be elaborated here.

[0045] like Figure 5 As shown, the control member 31 also includes a rocker arm 314, one end of which is provided with a shaft hole along the axis of the output shaft of the motor 313, and one end of the rocker arm 314 is sleeved on the output shaft of the motor 313 through the shaft hole, and the other end is hinged to the other end of the push rod 312.

[0046] Specifically, in the present invention, a first rotation hole is opened at the other end of the push rod 312 in a direction perpendicular to its axis, and the control member 31 further includes a rotation shaft 315 , which is inserted into the first rotation hole and connected to the other end of the rocker arm 314 .

[0047] Furthermore, a groove 3141 is opened at the other end of the rocker arm 314, and a second rotating hole is opened on the outer wall of the other end of the rocker arm 314 along the guide of the first rotating hole. The second rotating hole passes through the rocker arm 314 and is connected with the groove 3141. The other end of the push rod 312 is inserted in the groove 3141, and the rotating shaft 315 passes through the second rotating hole and is inserted in the first rotating hole.

[0048] In the specific working process of the present invention, the tractor 11 is arranged between the RV and the tractor for connecting the RV and the tractor. At least one hydraulic brake assembly 2 is connected to the wheel of the RV and is connected to the tractor 11 through a control component 31 and a displacement sensor 32. The sensing end of the displacement sensor 32 is arranged relative to the tractor 11 for detecting the displacement change of the tractor 11. The control end of the displacement sensor 32 is electrically connected to the control component 31, and the displacement change is converted into an electrical signal through the displacement sensor 32 and transmitted to the control component 31.

[0049] When in use, the user only needs to control the brakes of the tractor. The RV hits the tractor 11 under the action of inertia, and the tractor 11 slides in the slot 121. The displacement change of the tractor 11 is detected by the displacement sensor 32 and converted into an electrical signal, which is transmitted to the servo motor. The output shaft of the motor 313 rotates to drive the hinge composed of the rocker arm 314 and the push rod 312 to move, so that the piston 311 presses the brake oil in the brake pump 232 into the brake caliper 22. Under the action of hydraulic pressure, the brake caliper 22 is clamped on the brake disc 21 to brake the wheels of the RV.

[0050] Furthermore, when the braking action is completed, the traction device 11 moves away from the RV under the drive of the elastic force of the spring 13, and transmits the displacement signal to the servo motor through the displacement sensor 32, so that the output shaft of the servo motor is reversed, which is used to draw the brake oil in the brake caliper 22 into the brake pump 232 through the oil pipe 231, so that the brake caliper 22 is separated from the brake disc 21, thereby ending the braking action of the RV brake system.

[0051] Such a structure links and connects the tractor brake parts and the RV brake parts. When the tractor brakes, the displacement change caused by the tractor 11 hitting the RV is transmitted to the control part 31 through the displacement sensor 32 to control the hydraulic brake assembly 2 to drive the wheel brakes of the RV. This can solve the technical problem in the prior art that the tractor brake parts, RV brake parts and auxiliary brake wheel brake parts are scattered and lack interrelated connections, thus causing inconvenience in use.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. An electric controlled brake system for a motorhome, characterized in that: include: A tractor assembly, comprising a tractor, wherein the tractor is arranged between the RV and the tractor, and one end of the tractor is hinged to the tractor and the other end is movably connected to the RV; at least one hydraulic brake assembly connected to a wheel of the RV; A control component, comprising at least one control member and a displacement sensor, wherein the control member is connected to the RV and connected to the hydraulic brake assembly, wherein the displacement sensor has a control end and a sensing end, wherein the control end of the displacement sensor is electrically connected to the control member, and the sensing end is arranged relative to the tractor, and is used to detect a displacement change of the tractor, and convert the displacement change into an electrical signal and transmit it to the control member, so that the control member controls the hydraulic brake assembly to drive the wheels of the RV to brake; The tractor assembly further comprises a bracket and a spring, wherein the bracket is connected to the RV and has a slot relative to the tractor, the tractor can be slidably inserted into the slot, the fixed end of the displacement sensor is connected to the bracket, and the sensing end is arranged relative to the slot, the spring is arranged along the guide of the slot, one end of the spring is connected to the bottom inner wall of the slot, and the other end is connected to the tractor; Among them, the hydraulic brake assembly includes a brake disc, at least one brake caliper and at least one driving member, the brake disc is coaxially arranged with the wheel of the RV and connected to the wheel of the RV, the brake caliper and the brake disc are spaced apart from each other and can be movably connected to the brake disc, the driving member includes a fixed end and a movable end, the fixed end of the driving member is connected to the RV, and the movable end is connected to the brake caliper, which is used to drive the brake caliper to move closer to or away from the brake disc to achieve braking of the wheels of the RV.

2. The electric brake system for a motorhome according to claim 1, characterized in that: The driving component includes an oil pipe and a brake pump, one end of the oil pipe is connected to the interior of the brake caliper, the brake pump is connected to the RV and is connected to the other end of the oil pipe, and the brake pump, under the control of the control component, presses the oil in the brake pump into the brake caliper to make the brake caliper move closer to the brake disc.

3. The electric brake system for a motorhome according to claim 2, characterized in that: The interior of the brake pump is hollow and has at least one slide groove. The control component includes a piston and a push rod. The piston is arranged in a one-to-one correspondence with the slide groove. The piston can be movably inserted into the slide groove and abuts against the inner wall of the slide groove. One end of the push rod can be slidably inserted into the slide groove and connected to the piston.

4. The electric brake system for a motorhome according to claim 3, characterized in that: The control component also includes a motor, the connection terminal of the motor is electrically connected to the output end of the displacement sensor, and the output shaft of the motor is connected to the other end of the push rod, for driving the push rod and the piston to slide along the guide of the slide groove.

5. The electric brake system for a motorhome according to claim 4, characterized in that: The control component also includes a rocker arm, one end of which is provided with a shaft hole along the axis of the output shaft of the motor, and one end of the rocker arm is sleeved on the output shaft of the motor through the shaft hole, and the other end is hinged to the other end of the push rod.

6. The electric brake system for a motorhome according to claim 5, characterized in that: The other end of the push rod is provided with a first rotating hole in a direction perpendicular to the axis thereof. The control member further comprises a rotating shaft which is inserted into the first rotating hole and connected to the other end of the rocker arm.

7. The electric brake system for a motorhome according to claim 6, characterized in that: A groove is provided at the other end of the rocker arm, and a second rotating hole is provided on the outer wall of the other end of the rocker arm along the guide of the first rotating hole. The second rotating hole passes through the rocker arm and is connected with the groove. The other end of the push rod is inserted in the groove, and the rotating shaft passes through the second rotating hole and is inserted in the first rotating hole.

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