A manually operated vehicle driving device and a height adjusting mechanism thereof

Abstract

A manual car driving device and its height adjustment mechanism include a base, a hook-shaped one-way lever, a release lever, an accelerator linkage assembly, a brake linkage assembly, and a height adjustment mechanism. The height adjustment mechanism includes an upper pull rod, a lower pull rod, a side pull pin, a handle tube, a fixing tube, a rear pull pin, a handle, and a brake locking mechanism. The handle is fixed to the handle tube, the side pull pin is fixed to the side of the lower pull rod, and the rear pull pin is located on the rear side of the control lever. The fixing tube, handle tube, lower pull rod, and upper pull rod are sequentially nested from the outside in and slide relative to each other. Positioning holes for inserting the side pull pin and rear pull pin are respectively provided on the upper pull rod and handle tube. After the side pull pin and rear pull pin are pulled out, the handle is adjusted to a suitable height. Then, the side pull pin and rear pull pin insert into the corresponding positioning holes by their own elasticity, thereby completing the synchronous adjustment of the handle and brake locking mechanism height. This invention can adapt to the needs of different drivers, achieving convenient adjustment operation and reliable and safe performance.

Description

Technical Field

[0001] This utility model relates to a car driving device, specifically a manual car driving device and its height adjustment mechanism, belonging to the field of automotive technology. Background Technology

[0002] In recent years, with the development of my country's economy, the improvement of the social status of people with disabilities and the improvement of their quality of life, the demand for driving cars among people with disabilities has been increasing.

[0003] Currently, many car driver assistance devices suitable for people with lower limb disabilities have appeared on the market. These devices are designed for retrofitting ordinary cars, and the vast majority are manual driving systems. All operations of these devices are integrated onto a single handle, allowing the driver to operate the accelerator and brake with their hands instead of their feet, enabling people with lower limb disabilities to control the car with one hand. For the structure of an existing driver assistance device, please refer to [link to existing manual driving assistance device]. Figure 1 It not only has the function of one-handed operation of the brake and accelerator, but also has a brake locking function. It includes a base 6, a control lever 7, a release lever 5, a hook-shaped one-way lever 2, an accelerator linkage assembly 3, a brake linkage assembly 4, a button 101, a pull rod 102, a connecting piece 303, a pawl 104, a ratchet 105, and a handle 1. The handle 1 is fixed to the control lever 7, the base 6 is fixed to the carriage, the control lever 7 is hinged to the base 6, and the brake linkage assembly 4 is hinged between the control lever 7 and the main brake pedal. The throttle linkage assembly 3 is connected to the main throttle pedal via a hook-shaped one-way lever 2 and a release lever 5 to operate the throttle. The button 101 is assembled inside the handle 1. Pressing the button 101 causes the lever 102 to move upward, which pulls the pawl 104 to rotate and engage with the ratchet 105 through the connecting piece 303, thereby achieving locking in the braking state and playing a parking role. The button 101, lever 102, connecting piece 303, pawl 104 and ratchet 105 constitute the brake locking mechanism of the hand-driving auxiliary device.

[0004] However, the handle height of the aforementioned driver assistance device is fixed and determined after the device is installed in the vehicle. Since drivers have varying heights, arm lengths, and other physical characteristics, a fixed-height handle may cause inconvenience for some drivers, especially for disabled individuals, further increasing the difficulty of driving. Therefore, a manual car driving device with an adjustable handle height is needed. For driver assistance devices with a brake locking mechanism, simultaneously adjusting both the fixed handle height and the length of the brake locking mechanism presents a significant challenge. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing manual driving devices and provide a manual car driving device and its height adjustment mechanism, so as to realize the synchronous adjustment of the fixed handle height and the length of the brake locking mechanism, to meet the needs of drivers with different physical conditions, achieve the effect of convenient adjustment and operation and reliable and safe performance, and ensure the realization of the device's one-handed operation driving and brake locking functions.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows:

[0007] A height adjustment mechanism for a manual car driving device is mounted on the base of the manual car driving device. It includes a handle and a brake locking mechanism. The brake locking mechanism includes a button, a control lever, a connecting piece, a pawl, and a ratchet. The control lever is hinged to the base and can rotate. The ratchet is fixed to the base. The pawl is hinged to the control lever and can rotate to engage with the ratchet. The lower end of the connecting piece is connected to one end of the pawl. The height adjustment mechanism further includes an upper pull rod, a lower pull rod, a side pull pin, a handle tube, a fixing tube, and a rear pull pin.

[0008] Both the handle tube and the fixing tube are tubular components. The fixing tube is vertically fixed to the front side of the control lever. The handle tube is coaxially inserted into the cavity of the fixing tube and can slide up and down within it. The handle is fixedly connected to the upper end of the handle tube. The side of the handle tube facing the control lever has a first handle tube positioning hole, a second handle tube positioning hole, and a third handle tube positioning hole from top to bottom, which are used for positioning the handle tube for adjustment. The pull pin is an elastic pin, which is set on the rear side of the control lever. When in a natural spring-loaded state, the pin body of the pull pin can be inserted into the first handle tube positioning hole, the second handle tube positioning hole, or the third handle tube positioning hole to fix the relative position of the handle tube and the fixing tube.

[0009] The pull-down rod is a tubular component that passes through the cavity of the handle tube, with its lower end connected to the upper end of the connecting piece. The upper pull-up rod is a round rod with its upper part connected to the button, which is mounted on the handle and resets when released. The upper pull-up rod passes through the cavity of the pull-down rod and can slide up and down within it, with its lower part connected to the pull-down rod. The upper pull-up rod has a first pull-up rod positioning hole, a second pull-up rod positioning hole, and a third pull-up rod positioning hole from top to bottom, for inserting the side pull pin to adjust the connection position of the upper pull-up rod and the pull-down rod. The side pull pin is an elastic pin that is fixed to the side of the pull-down rod by a side pull pin fixing plate and passes through the tube wall of the pull-down rod to press against the upper pull-up rod. When in a natural spring-loaded state, the pin body of the side pull pin can be inserted into the first pull-up rod positioning hole, the second pull-up rod positioning hole, or the third pull-up rod positioning hole to fix the upper pull-up rod and the pull-down rod in place.

[0010] After the side pull pin and the rear pull pin are disengaged, the handle is adjusted to a suitable height. Then, the side pull pin and the rear pull pin are inserted into the corresponding positioning holes under their own elastic force, thereby completing the synchronous adjustment of the height of the handle and the brake locking mechanism.

[0011] As a further improvement, the height adjustment mechanism also includes a reset component, which is disposed on the control lever and generates a downward force to keep the pull-down lever connected to the button, while simultaneously pushing the pawl to remain disengaged from the ratchet in the normal state.

[0012] As a further improvement, the reset assembly includes a housing, a connecting rod, and a preload spring; the housing is fixed to the control lever, the connecting rod passes through the housing, its upper end is connected to the lower part of the pull-down rod, and its lower end is connected to the upper end of the connecting piece; the preload spring is disposed inside the housing and applies a downward force to the connecting rod to ensure that the pull-down rod pulls the pull-up rod to always be connected to the button, while the connecting piece pushes the pawl to remain disengaged from the ratchet in the normal state.

[0013] As a further improvement, the reset assembly includes a tension spring and a pin; the pin is fixed to the control lever and located below the connecting piece and the pawl; one end of the tension spring is connected to the pin, and the other end is connected to the connection between the pawl and the connecting piece; the tension spring applies a downward force, which pulls the pull rod tight through the connecting piece, so that the pull rod is always in contact with the button; at the same time, the tension spring pulls the pawl downward, keeping it disengaged from the ratchet under normal conditions.

[0014] As a further improvement, the relative positions of the side pull pin and the rear pull pin, the relative positions of the first handle tube positioning hole and the first pull rod positioning hole, the relative positions of the second handle tube positioning hole and the second pull rod positioning hole, and the relative positions of the third handle tube positioning hole and the third pull rod positioning hole are in a one-to-one correspondence. When the rear pull pin is inserted into the first handle tube positioning hole, the side pull pin is exactly aligned with the first pull rod positioning hole; when the rear pull pin is inserted into the second handle tube positioning hole, the side pull pin is exactly aligned with the second pull rod positioning hole; and when the rear pull pin is inserted into the third handle tube positioning hole, the side pull pin is exactly aligned with the third pull rod positioning hole.

[0015] Another technical solution of this utility model is:

[0016] A manual car driving device using the above-mentioned height adjustment mechanism is characterized in that: the manual car driving device includes a base, a hook-shaped one-way lever, a release lever, an accelerator linkage assembly, a brake linkage assembly, and the height adjustment mechanism;

[0017] The base is fixed to the floor of the driver's side compartment of the motor vehicle. The height adjustment mechanism is installed on the base. The hook-type one-way lever is a lever with a hook. The upper part has a hook groove that opens forward. The middle part is hinged to the base and can rotate around the hinge point. The middle part of the release lever is hinged to the lower part of the control lever and can rotate. The rear part of the release lever is a manual operating handle. The front part is riveted with a round pin. The round pin can be inserted into the hook groove of the hook-type one-way lever. The part between the hinge point of the release lever and the round pin is connected to the control lever by a tension spring. The tension spring can pull the release lever to rotate and press the round pin at its front against the hook-type one-way lever. The rear end of the brake linkage assembly is hinged to the upper part of the control lever and the front end is fixedly connected to the main brake pedal of the motor vehicle. The rear end of the accelerator linkage assembly is hinged to the lower part of the hook-type one-way lever and the front end is fixedly connected to the main accelerator pedal of the motor vehicle.

[0018] Pushing the handle of the height adjustment mechanism to swing the control lever forward causes the brake linkage assembly to apply forward force to press down the main brake pedal, achieving a braking state. Simultaneously, the throttle linkage assembly extends without exerting force. Pulling the handle to swing the control lever backward causes the release lever, via a pin embedded in the hook groove, to rotate the hook-shaped one-way lever, pushing the throttle linkage assembly forward to press down the main throttle pedal, achieving an accelerator state. Simultaneously, the brake linkage assembly extends without exerting force. Moving the release lever disengages the pin from the hook groove of the hook-shaped one-way lever. Pulling the handle to move the control lever backward to a horizontal position achieves the disengagement state. Lifting the control lever with the handle causes the pin of the release lever, under the tension of the spring, to move along the back side of the hook-shaped one-way lever, ultimately embedding into the hook groove and connecting with the hook-shaped one-way lever, achieving a parking state. The height adjustment mechanism enables height adjustment of the manual vehicle driving device.

[0019] Compared with existing manual driving devices, the beneficial technical effects of this utility model are as follows:

[0020] 1. It solves the technical problem of synchronously adjusting the height of the handle and brake locking mechanism, enabling the manual car driving device to adjust the handle height during use after installation, which has the advantages of convenient installation and easy adjustment.

[0021] 2. The height-adjustable manual car driving device can accommodate drivers with different physical conditions, especially the needs of disabled people, improving the comfort of operation and having the advantages of convenient operation and wide applicability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of existing technology.

[0023] Figure 2 This is a structural schematic diagram of Embodiment 1 of the present invention.

[0024] Figure 3 It is a three-dimensional structural diagram of the upper pull rod, lower pull rod, and side pull pin.

[0025] Figure 4 This is a structural schematic diagram of Embodiment 2 of this utility model.

[0026] Figure 5 yes Figure 4 AA sectional view.

[0027] Figure 6 yes Figure 5 BB cross-sectional view.

[0028] Figure 7 This is a structural schematic diagram of Embodiment 3 of this utility model.

[0029] Figure 8 This is a structural schematic diagram of Embodiment 4 of this utility model.

[0030] In the diagram, 1-handle, 2-hook-type one-way lever, 3-throttle linkage assembly, 4-brake linkage assembly, 5-disengagement lever, 6-base, 7-control lever, 101-button, 102-pull rod, 103-reset assembly, 104-pawl, 105-ratchet, 106-pawl pivot, 111-handle tube, 112-fixed tube, 121-first handle tube positioning hole, 122-second handle tube positioning hole, 123-third handle tube positioning hole, 300-side pull pin, 301-pull rod, 302-connecting rod, 303-connecting piece, 304-upper pull rod, 306-preload spring, 308-tension spring, 309-pin, 310-side pull pin fixing plate, 311-first pull rod positioning hole, 312-second pull rod positioning hole, 313-third pull rod positioning hole, 400-rear pull pin. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments, but the scope of protection of the present invention is not limited to the embodiments described below. All equivalent changes and modifications made based on the content of this specification fall within the technical scope of this patent application.

[0032] This utility model is installed on a manual car driving device to realize height adjustment of the device operation, so as to accommodate drivers with different physical conditions to manually drive the car.

[0033] Example 1

[0034] Please see Figure 2The height adjustment mechanism is mounted on the base 6 of the manual vehicle driving device and includes an upper pull rod 304, a lower pull rod 301, a side pull pin 300, a handle tube 111, a fixing tube 112, a rear pull pin 400, a handle 1, and a brake locking mechanism. The brake locking mechanism includes a button 101, a control lever 7, a connecting piece 303, a pawl 104, and a ratchet 105. The control lever 7 is hinged to the base 6 and can rotate. The ratchet 105 is fixed to the base 6. The pawl 104 is hinged to the control lever 7 and can rotate to engage with the ratchet 105. The lower end of the connecting piece 303 is connected to one end of the pawl 104.

[0035] Both the handle tube 111 and the fixing tube 112 are tubular components. The fixing tube 112 is vertically fixed to the front side of the operating lever 7. The handle tube 111 is coaxially inserted into the cavity of the fixing tube 112 and can slide up and down within it. The handle 1 is fixedly connected to the upper end of the handle tube 111. Please refer to [link / reference]. Figure 5 The handle tube 111 has a first handle tube positioning hole 121, a second handle tube positioning hole 122, and a third handle tube positioning hole 123 on the side facing the control lever 7, which are used for positioning the handle tube 111 for adjustment. The pull pin 400 is an elastic pin, which is provided on the rear side of the control lever 7. When in a natural spring-loaded state, the pin of the pull pin 400 can be inserted into the first handle tube positioning hole 121, the second handle tube positioning hole 122, or the third handle tube positioning hole 123 to fix the relative position of the handle tube 111 and the fixing tube 112.

[0036] Please refer to the following: Figure 2 and Figure 3 The pull rod 301 is a tubular component that passes through the cavity of the handle tube 111, with its lower end connected to the upper end of the connecting piece 303. The pull rod 304 is a round rod, with its upper part connected to the button 101, which is mounted on the handle 1 and resets when released. The pull rod 304 passes through the cavity of the pull rod 301 and can slide up and down within it, with its lower part connected to the pull rod 301. The pull rod 304 has a first rod positioning hole 311, a second rod positioning hole 312, and a third rod positioning hole from top to bottom. 313 is used to insert the side pull pin 300 to adjust the connection position of the upper pull rod 304 and the lower pull rod 301. The side pull pin 300 is an elastic pin, which is fixed to the side of the lower pull rod 301 by the side pull pin fixing plate 310 and passes through the tube wall of the lower pull rod 301 to press against the upper pull rod 304. When in a natural elastic state, the pin body of the side pull pin 300 can be inserted into the first pull rod positioning hole 311, the second pull rod positioning hole 312 or the third pull rod positioning hole 313 to fix the upper pull rod 304 and the lower pull rod 301.

[0037] When it is necessary to adjust the height of the handle 1, pull the side pull pin 300 and the rear pull pin 400 to disengage, adjust the handle 1 to a suitable height, and then the side pull pin 300 and the rear pull pin 400 insert into the corresponding positioning holes under their own elastic force, thereby completing the synchronous adjustment of the height of the handle 1 and the brake locking mechanism.

[0038] Example 2

[0039] The structure of this embodiment is basically the same as that of Embodiment 1 above, except that a reset component is added on the basis of Embodiment 1.

[0040] Please see Figure 4 The height adjustment mechanism is mounted on the base 6 of the manual vehicle driving device and includes a handle 1, a button 101, a control lever 7, an upper pull rod 304, a lower pull rod 301, a side pull pin 300, a connecting piece 303, a reset assembly 103, a pawl 104, a ratchet 105, a handle tube 111, a fixing tube 112, and a rear pull pin 400.

[0041] The control lever 7 is a vertical plate, with its bottom hinged to the base 6 via a pin, and the control lever 7 can rotate around the pin; the control lever 7 is connected to the brake linkage assembly and the accelerator linkage assembly of the manual car driving device respectively, so as to operate the brake and the accelerator.

[0042] The button 101 is mounted on the handle 1 and is used by the driver to press and operate the brake locking mechanism of the manual car driving device. The button 101 can be reset after being released.

[0043] The handle 1 is fixedly connected to the upper end of the handle tube 111, and the fixing tube 112 is vertically fixed to the front side of the operating lever 7. Both the handle tube 111 and the fixing tube 112 are tubular components. The handle tube 111 is coaxially inserted into the cavity of the fixing tube 112 and can slide up and down within it. The wall of the fixing tube 112 has a pin hole for inserting the pull pin 400. Please refer to [link / reference]. Figure 5The handle tube 111 has a first handle tube positioning hole 121, a second handle tube positioning hole 122, and a third handle tube positioning hole 123 on the side facing the control lever 7, which are used for positioning the handle tube 111 for adjustment. The pull pin 400 is provided on the rear side of the control lever 7. The pull pin 400 is an elastic pin and always has inward pressure. When in a natural elastic state, the pin body of the pull pin 400 passes through the through hole on the control lever 7 and the pin hole on the fixing tube 112, and can be inserted into the first handle tube positioning hole 121, the second handle tube positioning hole 122, or the third handle tube positioning hole 123 to fix the relative position of the handle tube 111 and the fixing tube 112. When the height of the handle 1 needs to be adjusted, the driver can pull out the rear pull pin 400, allowing the handle tube 111 to slide freely up and down within the fixing tube 112 to adjust its height. Once the height is adjusted appropriately, the rear pull pin 400, under its own elastic force, inserts into the first handle tube positioning hole 121, the second handle tube positioning hole 122, or the third handle tube positioning hole 123, fixing the relative position of the handle tube 111 and the fixing tube 112. This adjusts and secures the handle 1 on the handle tube 111 to the appropriate height. The handle tube 111, the fixing tube 112, and the rear pull pin 400 form a handle height adjustment mechanism.

[0044] Please refer to the following: Figure 3 and Figure 6The upper pull rod 304 is a round rod, with its upper part connected to the button 101. The lower pull rod 301 is a tube, connected to the lower part of the upper pull rod 304. The lower pull rod 301 passes through the cavity of the handle tube 111, and the upper pull rod 304 passes through the cavity of the lower pull rod 301 and can slide up and down within it. The upper pull rod 304 has a first pull rod positioning hole 311, a second pull rod positioning hole 312, and a third pull rod positioning hole 313 from top to bottom, for inserting the side pull pin 300 to adjust the connection position of the upper pull rod 304 and the lower pull rod 301. The first pull rod positioning hole 311, the second pull rod positioning hole 312, and the third pull rod positioning hole 313 are through holes along the radial direction of the upper pull rod 304. The side pull pin 300 is fixed to the side of the lower pull rod 301 by the side pull pin fixing plate 310, and passes through the tube wall of the lower pull rod 301 to press against the upper pull rod 304. The side pull pin 300 is an elastic pin, and there is always inward pressure. When in a natural elastic state, the pin body of the side pull pin 300 can be inserted into the first pull rod positioning hole 311, the second pull rod positioning hole 312, or the third pull rod positioning hole 313 to fix the upper pull rod 304 and the lower pull rod 301. When it is necessary to adjust the length of the pull rod, the driver can pull out the side pull pin 300, and the upper pull rod 304 can slide freely up and down in the lower pull rod 301. After the length is adjusted appropriately, the side pull pin 300, under the action of its own elasticity, inserts into the first pull rod positioning hole 311, the second pull rod positioning hole 312, or the third pull rod positioning hole 313 to fix the upper pull rod 304 and the lower pull rod 301. The upper pull rod 304, the lower pull rod 301, and the side pull pin 300 form a pull rod length adjustment mechanism.

[0045] Please see Figure 4The ratchet 105 is a fan-shaped component, fixed to the base 6, with its teeth inclined forward. The middle part of the pawl 104 is hinged to the operating lever 7 on the upper side of the ratchet 105 via a pawl pivot 106, and can rotate around the hinge point. The pawl tip at one end of the pawl 104 faces backward and can disengage from or engage with the teeth of the ratchet 105. The reset assembly 103 is fixed to the operating lever 7 and includes a housing, a connecting rod 302, and a preload spring 306. The housing is fixed to the operating lever 7, and the connecting rod 302 passes through the housing, with its upper end connected to the lower part of the pull-down rod 301 and its lower end connected to the upper end of the connecting piece 303. The lower end of the connecting piece 303 is connected to the other end of the pawl 104. The preload spring 306 is disposed inside the housing and applies a downward force to the connecting rod 302, ensuring that the connecting rod 302 pulls the pull-down rod 301, so that the pull-up rod 304 is always in contact with the button 101, waiting to transmit the button force. At the same time, the connecting rod 302 pushes the pawl 104 downward through the connecting piece 303, keeping the pawl 104 disengaged from the ratchet 105 under normal conditions. Driven by the button 101 being pressed, the pull-up rod 304 pulls the pull-down rod 301 to slide vertically in the cavity of the handle tube 111, thereby driving the pawl 104 to rotate around the pawl pivot 106 through the connecting rod 302 and the connecting piece 303, so that the pawl 104 engages with the ratchet 105, realizing the locking of the braking state and playing a parking role for the vehicle.

[0046] The steps for adjusting the handle height of the manual car driving device using the aforementioned height adjustment mechanism are as follows:

[0047] 1) When adjusting the height of handle 1, please refer to the following: Figure 2 , Figure 3 and Figure 4 First, the side pull pin 300 is pulled out from the side pull pin fixing plate 310 and placed on the side of the pull rod 301. The side pull pin 300 disengages from the positioning hole, so that the upper pull rod 304 and the pull rod 301 are in a non-fixed free state. The upper pull rod 304 can slide freely up and down in the cavity of the pull rod 301. At this time, the connecting rod 302 connected to the pull rod 301 is pressed and limited by the reset component 103 and will not move with the upper pull rod 304. Therefore, the pawl 104 remains disengaged from the ratchet 105.

[0048] 2) Rotate forward and pull out the rear pull pin 400, so that the rear pull pin 400 is dislodged, and the handle tube 111 is in a free state of non-connection with the fixed tube 112 and the operating lever 7. At this time, if the handle 1 is pushed or pulled manually, the handle tube 111 can slide in the vertical direction in the cavity of the fixed tube 112.

[0049] 3) Rotate in the opposite direction and release the pull pin 400 so that the pull pin 400 is in a natural spring-loaded state. Then slide the handle tube 111 to a suitable height position so that the first handle tube positioning hole 121, the second handle tube positioning hole 122 or the third handle tube positioning hole 123 of the handle tube 111 is aligned with the pull pin 400 on the control lever 7. The pull pin 400 can then be inserted into the corresponding positioning hole, thereby fixing the relative position of the handle tube 111 and the control lever 7. At the same time, the height of the handle 1 is adjusted and fixed.

[0050] 4) Loosen the side pull pin 300 so that it is in a natural spring-loaded state. Press the button 101 on the handle 1. When the upper pull rod 304 slides to the appropriate position, the first pull rod positioning hole 311, the second pull rod positioning hole 312, or the third pull rod positioning hole 313 will align with the side pull pin 300 on the lower pull rod 301. The side pull pin 300 can then insert into the corresponding positioning hole under its own elastic force, thus re-fixing the upper pull rod 304 and the lower pull rod 301, thereby completing the adjustment of the pull rod length. This completes the synchronous adjustment of the height of the handle and brake locking mechanism of the manual car driving device.

[0051] To ensure the synchronous adjustment of the height of the fixed handle and the length of the lever in the brake locking mechanism, it is necessary to ensure that the handle tube 111 and the fixed tube 112, as well as the upper lever 304 and the lower lever 301, can simultaneously achieve pin fixation after adjustment. This requires the relative positions of the side lever pin 300 and the rear lever pin 400, the relative positions of the first handle tube positioning hole 121 and the first lever positioning hole 311, the relative positions of the second handle tube positioning hole 122 and the second lever positioning hole 312, and the relative positions of the third handle tube positioning hole 123 and the first lever positioning hole 401. The relative positions of the three pull rod positioning holes 313 meet the condition of one-to-one correspondence, so as to ensure the realization of the adjustment function; in other words, when the rear pull pin 400 is inserted into the first handle tube positioning hole 121, the side pull pin 300 is exactly aligned with the first pull rod positioning hole 311; when the rear pull pin 400 is inserted into the second handle tube positioning hole 122, the side pull pin 300 is exactly aligned with the second pull rod positioning hole 312; when the rear pull pin 400 is inserted into the third handle tube positioning hole 123, the side pull pin 300 is exactly aligned with the third pull rod positioning hole 313.

[0052] Example 3

[0053] The height adjustment mechanism described in this embodiment is basically the same in structure as that in Embodiment 1, except that a reset component with a different structure than that in Embodiment 2 is added. Please refer to... Figure 7The reset assembly includes a tension spring 308 and a pin 309. The pin 309 is fixed to the control lever 7 and located below the connecting piece 303 and the pawl 104. One end of the tension spring 308 is connected to the pin 309, and the other end is connected to the connection between the pawl 104 and the connecting piece 303. The tension spring 308 applies a downward force, which pulls the pull rod 301 tight through the connecting piece 303, so that the pull rod 304 is always in contact with the button 101, waiting to transmit the button force. At the same time, it pulls the pawl 104 downward, so that the pawl 104 remains disengaged from the ratchet 105 under normal conditions.

[0054] The method for adjusting the handle height in this embodiment is the same as in Embodiment 2.

[0055] Example 4

[0056] Please see Figure 8 The manual driving device shown in the figure is installed on the floor of the vehicle's driver's side compartment and includes a base 6, a hook-shaped one-way lever 2, a release lever 5, an accelerator linkage assembly 3, a brake linkage assembly 4, and a height adjustment mechanism.

[0057] The base 6 is provided with several mounting holes and is fixed to the floor of the driver's compartment.

[0058] The height adjustment mechanism is the height adjustment mechanism described in Embodiment 2, which is installed on the base 6 and includes a handle 1, a button 101, a control lever 7, an upper pull rod 304, a lower pull rod 301, a side pull pin 300, a connecting piece 303, a reset assembly 103, a pawl 104, a ratchet 105, a handle tube 111, a fixing tube 112, and a rear pull pin 400.

[0059] The hook-shaped one-way lever 2 is a lever with a hook. The upper part is provided with a hook groove that opens forward, and the middle part is hinged to the upright plate at the front of the base 6. The hook-shaped one-way lever 2 can rotate around the hinge point.

[0060] The middle part of the release lever 5 is hinged to the lower part of the operating lever 7 and can rotate. The rear part of the release lever 5 is a manual operating handle, and the front part is riveted with a round pin. The round pin can be inserted into the hook groove on the upper part of the hook-shaped one-way lever 2. The part between the hinge point of the release lever 5 and the round pin is connected to the operating lever 7 by a tension spring. The tension spring can pull the release lever 5 to rotate, pressing the round pin at its front against the hook-shaped one-way lever 2.

[0061] The rear end of the brake linkage assembly 4 is hinged to the upper part of the control lever 7, and the front end is fixedly connected to the main brake pedal. The rear end of the throttle linkage assembly 3 is hinged to the lower part of the hook-shaped one-way lever 2, and the front end is fixedly connected to the main throttle pedal.

[0062] The operation of the manual car driving device is as follows: See Figure 8 :

[0063] Braking status——

[0064] Pushing the handle 1 forward causes the control lever 7 to swing forward, applying force forward through the brake linkage assembly 4. At this time, the round pin at the front end of the disengagement lever 5 disengages from the hook groove of the hook-shaped one-way lever 2. The brake linkage assembly 4 then applies force forward to the main brake pedal, depressing it to achieve braking. Simultaneously, the throttle linkage assembly 3 retracts and is in a state of no force, leaving the main throttle pedal in its initial free state. After braking is complete, pressing the button 101 overcomes the downward force of the reset assembly 103, pulling up the connecting piece 303 and causing the rearward-facing pawl 104 to engage with the forward-facing ratchet 105, preventing the control lever 7 from swinging further, thus locking the vehicle's braking state.

[0065] Throttle status——

[0066] Pushing the lever 7 forward again by the handle 1 causes the pawl 104 to disengage from the ratchet 105 under the downward force of the reset assembly 103, releasing the brake lock. Then, pulling the handle 1 backward causes the lever 7 to swing backward, and the pin of the release lever 5 engages the hook groove of the hook-shaped one-way lever 2. Thus, the lever 7 rotates the hook-shaped one-way lever 2 via the release lever 5, and the hook-shaped one-way lever 2 pushes the throttle linkage assembly 3 forward. The throttle linkage assembly 3 applies force forward to the main throttle pedal, pressing down the main throttle pedal to achieve the throttle state. At the same time, the brake linkage assembly 4 retracts and is in a state of no force, and the main brake pedal is in an initial free state.

[0067] Disconnected state——

[0068] Pushing the lever 7 forward with the handle 1 disengages the pawl 104 from the ratchet 105. Simultaneously, actuating the release lever 5 disengages its pin from the hook groove of the hook-shaped one-way lever 2. Pulling the handle 1 backward further swings the lever 7 to a horizontal position, disengaging it. At the same time, the brake linkage assembly 4 and throttle linkage assembly 3 are both in a state of no force, and the main brake pedal and main throttle pedal are in their initial free state.

[0069] Parking status——

[0070] When the control lever 7 is lifted, the pin of the release lever 5 moves against the back side of the hook-shaped one-way lever 2 under the tension of the tension spring, and finally embeds into the hook groove of the hook-shaped one-way lever 2, connecting the hook-shaped one-way lever 2 with the release lever 5 to achieve the parking state. At this time, the brake linkage assembly 4 and the throttle linkage assembly 3 are both in a state of no force, and the main brake pedal and the main throttle pedal are both in an initial free state.

[0071] Handle height adjustment process —

[0072] The method for adjusting the handle height of a manual car driving device using a height adjustment mechanism, as described in Example 2.

[0073] Example 5

[0074] The manual car driving device described in this embodiment has a basically the same structure as that in Embodiment 4. The difference is that the manual car driving device in this embodiment adopts the height adjustment mechanism described in Embodiment 3.

[0075] The working principle and process of this embodiment are the same as those of Embodiment 4.

[0076] The scope of protection claimed by this utility model is not limited to the above embodiments, but should also include other variations and alternatives that are obvious to this utility model.

Claims

1. A height adjustment mechanism of a manual automobile driving device, which is installed on a base of a manual automobile driving device, comprising a handle and a brake locking mechanism, the brake locking mechanism comprising a button, a lever, a connecting piece, a pawl and a ratchet, wherein, The control lever is hinged to the base and can rotate; the ratchet is fixed to the base; the pawl is hinged to the control lever and can rotate to engage with the ratchet; the lower end of the connecting piece is connected to one end of the pawl; the height adjustment mechanism further includes an upper pull rod, a lower pull rod, a side pull pin, a handle tube, a fixing tube, and a rear pull pin. Both the handle tube and the fixing tube are tubular components. The fixing tube is vertically fixed to the front side of the control lever. The handle tube is coaxially inserted into the cavity of the fixing tube and can slide up and down within it. The handle is fixedly connected to the upper end of the handle tube. The side of the handle tube facing the control lever has a first handle tube positioning hole, a second handle tube positioning hole, and a third handle tube positioning hole from top to bottom, which are used for positioning the handle tube for adjustment. The pull pin is an elastic pin, which is set on the rear side of the control lever. When in a natural spring-loaded state, the pin body of the pull pin can be inserted into the first handle tube positioning hole, the second handle tube positioning hole, or the third handle tube positioning hole to fix the relative position of the handle tube and the fixing tube. The pull-down rod is a tubular component that passes through the cavity of the handle tube, with its lower end connected to the upper end of the connecting piece. The upper pull-down rod is a round rod with its upper part connected to the button, which is mounted on the handle and resets when released. The upper pull-down rod passes through the cavity of the pull-down rod and can slide up and down within it, with its lower part connected to the pull-down rod. The upper pull-down rod has a first pull-down rod positioning hole, a second pull-down rod positioning hole, and a third pull-down rod positioning hole from top to bottom, for inserting the side pull pin to adjust the connection position of the upper pull-down rod and the pull-down rod. The side pull pin is an elastic pin that is fixed to the side of the pull-down rod by a side pull pin fixing plate and passes through the tube wall of the pull-down rod to press against the upper pull-down rod. When in a natural spring-loaded state, the pin body of the side pull pin can be inserted into the first pull-down rod positioning hole, the second pull-down rod positioning hole, or the third pull-down rod positioning hole to fix the connection between the upper pull-down rod and the pull-down rod. After the side pull pin and the rear pull pin are disengaged, the handle is adjusted to a suitable height. Then, the side pull pin and the rear pull pin are inserted into the corresponding positioning holes under their own elastic force, thereby completing the synchronous adjustment of the height of the handle and the brake locking mechanism.

2. The height adjustment mechanism of a manual type automobile driving device according to claim 1, characterized by: The height adjustment mechanism also includes a reset component, which is disposed on the control lever and generates a downward force to keep the pull-down lever connected to the button, while simultaneously pushing the pawl to remain disengaged from the ratchet in the normal state.

3. The height adjustment mechanism for a manual vehicle driving apparatus according to claim 2, characterized in that: The reset assembly includes a housing, a connecting rod, and a preload spring. The housing is fixed to the control lever, and the connecting rod passes through the housing, with its upper end connected to the lower part of the pull-down rod and its lower end connected to the upper end of the connecting piece. The preload spring is disposed inside the housing and applies a downward force to the connecting rod to ensure that the pull-down rod pulls the pull-up rod to remain connected to the button. At the same time, the connecting piece pushes the pawl to remain disengaged from the ratchet in the normal state.

4. The height adjustment mechanism of the manual car driving device according to claim 2, characterized in that: The reset assembly includes a tension spring and a pin. The pin is fixed to the control lever and located below the connecting piece and the pawl. One end of the tension spring is connected to the pin, and the other end is connected to the connection between the pawl and the connecting piece. The tension spring applies a downward force, which pulls the pull rod tight through the connecting piece, so that the pull rod is always in contact with the button. At the same time, the tension spring pulls the pawl downward, keeping it disengaged from the ratchet under normal conditions.

5. The height adjustment mechanism of the manual vehicle driving device according to claim 3 or 4, characterized in that: The relative positions of the side pull pin and the rear pull pin, the relative positions of the first handle tube positioning hole and the first pull rod positioning hole, the relative positions of the second handle tube positioning hole and the second pull rod positioning hole, and the relative positions of the third handle tube positioning hole and the third pull rod positioning hole are in a one-to-one correspondence. When the rear pull pin is inserted into the first handle tube positioning hole, the side pull pin is exactly aligned with the first pull rod positioning hole. When the rear pull pin is inserted into the second handle tube positioning hole, the side pull pin is exactly aligned with the second pull rod positioning hole. When the rear pull pin is inserted into the third handle tube positioning hole, the side pull pin is exactly aligned with the third pull rod positioning hole.

6. A manual vehicle driving device comprising the height adjustment mechanism described in claim 3 or 4, characterized in that: The manual vehicle driving device includes a base, a hook-type one-way lever, a release lever, a throttle linkage assembly, a brake linkage assembly, and the height adjustment mechanism; The base is fixed to the floor of the driver's side compartment of the motor vehicle. The height adjustment mechanism is installed on the base. The hook-type one-way lever is a lever with a hook. The upper part has a hook groove that opens forward. The middle part is hinged to the base and can rotate around the hinge point. The middle part of the release lever is hinged to the lower part of the control lever and can rotate. The rear part of the release lever is a manual operating handle. The front part is riveted with a round pin. The round pin can be inserted into the hook groove of the hook-type one-way lever. The part between the hinge point of the release lever and the round pin is connected to the control lever by a tension spring. The tension spring can pull the release lever to rotate and press the round pin at its front against the hook-type one-way lever. The rear end of the brake linkage assembly is hinged to the upper part of the control lever and the front end is fixedly connected to the main brake pedal of the motor vehicle. The rear end of the accelerator linkage assembly is hinged to the lower part of the hook-type one-way lever and the front end is fixedly connected to the main accelerator pedal of the motor vehicle. Pushing the handle of the height adjustment mechanism to swing the control lever forward causes the brake linkage assembly to apply forward force to press down the main brake pedal, achieving a braking state. Simultaneously, the throttle linkage assembly extends without exerting force. Pulling the handle to swing the control lever backward causes the release lever, via a pin embedded in the hook groove, to rotate the hook-shaped one-way lever, pushing the throttle linkage assembly forward to press down the main throttle pedal, achieving an accelerator state. Simultaneously, the brake linkage assembly extends without exerting force. Moving the release lever disengages the pin from the hook groove of the hook-shaped one-way lever. Pulling the handle to move the control lever backward to a horizontal position achieves the disengagement state. Lifting the control lever with the handle causes the pin of the release lever, under the tension of the spring, to move along the back side of the hook-shaped one-way lever, ultimately embedding into the hook groove and connecting with the hook-shaped one-way lever, achieving a parking state. The height adjustment mechanism enables height adjustment of the manual vehicle driving device.

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