Steering tie rod and vehicle

Abstract

The utility model relates to a steering tie rod and a vehicle, the steering tie rod comprises an inner tie rod, the inner tie rod is provided with a conventional area and a weakening area, and the outer diameter of the weakening area is smaller than that of the conventional area; the outer pull rod and the inner pull rod are coaxially arranged, and one end of the outer pull rod is in threaded connection with one end of the inner pull rod; the sensing assembly is arranged on the inner pull rod and used for sensing bending deformation of the weakening area on the inner pull rod; the steering tie rod deformation warning device has the advantages that when the steering tie rod deforms, a driver is reminded to pay attention in time, and the driving safety is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile parts, in particular to a steering tie rod and a vehicle. Background Art

[0002] The steering tie rod is an important part of the automobile steering mechanism, which directly affects the stability of automobile handling, the safety of operation and the service life of tires. The steering tie rod is divided into two categories, namely the steering straight tie rod and the steering lateral tie rod. The steering straight tie rod is responsible for transmitting the movement of the steering rocker arm to the steering knuckle arm; the steering lateral tie rod is the bottom edge of the steering trapezoidal mechanism and is a key component to ensure the correct movement relationship between the left and right steering wheels.

[0003] The existing steering tie rod includes an inner tie rod and an outer tie rod, and the ends of the inner tie rod and the outer tie rod are threadedly connected. When the wheel is subjected to a large impact load, the steering tie rod will be subjected to the impact force, which will cause the threaded parts of the inner tie rod and the outer tie rod to bend and deform. However, due to the special molding structure of the threaded part itself, stress concentration is likely to occur after bending and deformation, resulting in tie rod breakage, affecting the use of the tie rod. Therefore, a weakening structure is provided on the inner tie rod in the prior art. When the steering tie rod is subjected to an impact, the steering tie rod will bend and deform at the weakening structure to absorb the impact force on the tie rod, prevent the steering tie rod from breaking at the threaded part, and ensure that the car maintains its steering ability.

[0004] However, in actual use, when the weakened structure bends and deforms, the bending of the steering tie rod cannot be fed back to the driver in time. The driver can only perceive it based on experience, which affects driving safety. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a steering tie rod and a vehicle to solve the technical problem in the prior art that when the weakened structure is bent and deformed, the bending condition of the steering tie rod cannot be fed back to the driver in time.

[0006] The utility model provides a steering tie rod, comprising:

[0007] An inner tie rod, wherein a normal area and a weakened area are provided on the inner tie rod, and an outer diameter of the weakened area is smaller than an outer diameter of the normal area;

[0008] An outer pull rod is coaxially arranged with the inner pull rod, and one end of the outer pull rod is detachably connected to one end of the inner pull rod;

[0009] A sensing component, disposed on the inner tie rod, for sensing bending deformation of the weakened area on the inner tie rod;

[0010] The alarm component is electrically connected to the sensing component.

[0011] Optionally, the sensing component includes:

[0012] A counter-shooting sensor transmitter is arranged on the inner pull rod;

[0013] The opposite-beam sensor receiving component is arranged on the inner pull rod, the weakened area is located between the opposite-beam sensor transmitting component and the opposite-beam sensor receiving component, the opposite-beam sensor transmitting component is directly opposite to the opposite-beam sensor receiving component, the opposite-beam sensor receiving component receives the light emitted by the opposite-beam sensor transmitting component, and when the weakened area is bent and deformed, the opposite-beam sensor receiving component and the opposite-beam sensor transmitting component are misaligned.

[0014] Optionally, a mounting seat is provided at both the through-beam sensor emitting component and the through-beam sensor receiving component, and both the through-beam sensor emitting component and the through-beam sensor receiving component are detachably connected to the inner pull rod via the mounting seat.

[0015] Optionally, the mounting seat is sleeved on the inner pull rod, and the inner pull rod is provided with an annular placement groove at the mounting seat, and the mounting seat is located in the placement groove and fits with the inner wall of the placement groove.

[0016] Optionally, a first clamping member is further provided on the mounting seat, which is suitable for limiting the movement of the mounting seat on the inner pull rod.

[0017] Optionally, the first clamping member includes a first clamping slot opened at the bottom of the placement slot, and an elastic first clamping block is provided on the inner wall of the mounting seat facing the first clamping slot. When the mounting seat is located in the placement slot, the first clamping block is inserted into the first clamping slot to limit the movement of the mounting seat on the inner pull rod.

[0018] Optionally, the mounting seat includes a first part and a second part, the first part and the second part are symmetrically arranged about the inner pull rod, a second clamping piece is arranged between the first part and the second part, and when the first part and the second part are clamped by the second clamping piece, the mounting seat is sleeved on the inner pull rod.

[0019] Optionally, the second clamping member includes an elastic second clamping block and a second clamping groove, and the second clamping block and the second clamping groove are respectively arranged on the first part and the second part. When the mounting seat is installed on the inner pull rod, the second clamping block is inserted into the second clamping groove, and the mounting seat is mounted on the inner pull rod.

[0020] Optionally, the weakened area is located at the center of the steering tie rod in the length direction.

[0021] The utility model also provides a vehicle, comprising the steering tie rod.

[0022] The technical solution of the utility model has the following advantages:

[0023] The steering tie rod provided by the utility model, when the automobile wheel is hit, the steering tie rod will be subjected to impact force, the inner tie rod will bend and deform in the weakened area, absorb the impact energy received by the steering tie rod, prevent the steering tie rod from breaking, and ensure that the automobile maintains the steering ability; at this time, when the inner tie rod is deformed, the sensing component will sense the deformation of the inner tie rod and transmit the signal to the alarm component in time, the alarm component starts the alarm to remind the driver's attention in time, effectively ensuring driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the steering tie rod in the utility model;

[0026] Figure 2 It is an exploded schematic diagram of the mounting seat on the inner tie rod in the utility model;

[0027] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0028] Figure 4 It is a schematic diagram of the mounting seat of the transmitting element of the opposite-shooting sensor in the present utility model;

[0029] Figure 5 It is an exploded schematic diagram of the mounting seat in the utility model;

[0030] Figure 6 It is an exploded schematic diagram of another viewing angle of the mounting seat in the utility model;

[0031] Description of reference numerals:

[0032] 1. Inner pull rod; 11. Weakened area; 12. Conventional area; 3. Sensing component; 31. Transmitting element of the through-beam sensor; 32. Receiving element of the through-beam sensor; 4. Mounting seat; 41. First part; 42. Second part; 5. Placement slot; 6. First clamping member; 61. First clamping block; 62. First clamping slot; 7. Second clamping member; 71. Second clamping block; 72. Second clamping slot; 8. Through slot. DETAILED DESCRIPTION

[0033] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the utility model.

[0036] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0037] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0038] Example 1

[0039] Reference Figure 1-Figure 6 As shown, the utility model provides a steering tie rod, including an inner tie rod 1, an outer tie rod (not shown in the figure), a sensing component 3 and an alarm component (not shown in the figure), the outer tie rod and the inner tie rod 1 are coaxially arranged, one end of the outer tie rod and one end of the inner tie rod 1 are detachably connected, so that the inner tie rod 1 and the outer tie rod can be located on the same central axis, a conventional area 12 and a weakened area 11 are arranged on the inner tie rod 1, the outer diameter of the weakened area 11 is smaller than the outer diameter of the conventional area 12, the sensing component 3 is arranged on the inner tie rod 1, and is used for sensing the bending deformation of the weakened area 11 on the inner tie rod 1, and the alarm component is electrically connected to the sensing component 3 through a controller.

[0040] When the car wheel is hit, the steering tie rod will be subjected to impact force, and the inner tie rod 1 will bend and deform in the weakened area 11 to absorb the impact energy of the steering tie rod and prevent the steering tie rod from breaking, thereby ensuring that the car maintains its steering ability. At this time, when the inner tie rod 1 is deformed, the sensing component 3 will sense the deformation of the inner tie rod 1 and transmit the signal to the alarm component, which activates the alarm to remind the driver in time, thereby effectively ensuring driving safety.

[0041] Specifically, the end of the inner tie rod 1 is threadedly connected to the end of the outer tie rod, and the difference between the outer diameter of the conventional zone 12 and the outer diameter of the weakened zone 11 is set to 1.5mm-3mm, and the outer diameter of the weakened zone 11 is slightly smaller than the outer diameter of the conventional zone 12. In this way, when the car wheel is hit and the steering tie rod is subjected to impact force, the inner tie rod 1 is bent and deformed in the weakened zone 11 to absorb the impact energy of the steering tie rod, prevent the steering tie rod from breaking, and ensure that the car maintains its steering ability. Furthermore, the difference between the outer diameter of the conventional zone 12 and the outer diameter of the weakened zone 11 is set to 2mm. At this time, the effect of absorbing impact energy is best, and the inner tie rod 1 can be most effectively prevented from breaking. The above-mentioned weakened zone 11 has a simple structure and is easy to manufacture. Specifically, the weakened zone 11 is formed by a turning process, and there is no sharp corner between the weakened zone 11 and the conventional zone 12, that is, the sharp-angled arc transition between the weakened zone 11 and the conventional zone 12 is not easy to generate stress and cause fracture. In addition, the weakened area 11 is located at the center of the steering tie rod in the length direction. When the steering tie rod is deformed, the wheel toe changes significantly and is easily discovered by the driver and replaced technically. By cooperating with the sensing component 3 and the alarm component, the deformed steering tie rod can be discovered in time to ensure driving safety.

[0042] As a specific implementation method, refer to Figure 1 and Figure 3As shown, the sensing assembly 3 includes a beam sensor transmitter 31 and a beam sensor receiver 32. Specifically, the beam sensor transmitter 31 is the transmitting part of the beam sensor, and the beam sensor receiver 32 is the receiving part of the beam sensor. The beam sensor transmitter 31 and the beam sensor receiver 32 are arranged along the length direction of the inner tie rod 1. The beam sensor transmitter 31 and the beam sensor receiver 32 are both arranged on the conventional area 12 of the inner tie rod 1 with a gap therebetween. The weakened area 11 is located between the beam sensor transmitter 31 and the beam sensor receiver 32. When the steering tie rod is not bent or deformed, the beam sensor transmitter 31 is directly opposite to the beam sensor receiver 32, and the transmitting end of the beam sensor transmitter 31 is arranged opposite to the receiving end of the beam sensor receiver 32. The receiving element 32 receives the light emitted by the opposite-shooting sensor transmitting element 31 and converts the received light into an electrical signal. When the weakened area 11 is bent and deformed, a section of the inner tie rod 1 on one side of the weakened area 11 is bent, and the axes of the two sections of the inner tie rod 1 on both sides of the weakened area 11 are no longer in the same straight line. The opposite-shooting sensor receiving element 32 and the opposite-shooting sensor transmitting element 31 are misaligned. At this time, the opposite-shooting sensor receiving element 32 and the opposite-shooting sensor receiving element 32 are no longer arranged along the length direction of the undeformed inner tie rod 1. The opposite-shooting sensor receiving element 32 cannot receive the light emitted by the opposite-shooting sensor transmitting element 31. At this time, an electrical signal is also generated and transmitted to the controller. The controller controls the alarm component to start the alarm, reminding the driver to pay attention and timely discover the bending deformation of the steering tie rod to ensure driving safety. The alarm component (not shown in the figure) can be directly set on the dashboard inside the car, so as to ensure that the driver can more intuitively see the alarm status of the alarm component.

[0043] Reference Figure 3 and Figure 4 As shown, in order to facilitate the installation of the opposite shooting sensor transmitter 31 and the opposite shooting sensor receiver 32 on the inner tie rod 1, a mounting seat 4 is provided at the opposite shooting sensor transmitter 31 and the opposite shooting sensor receiver 32, and the opposite shooting sensor transmitter 31 and the opposite shooting sensor receiver 32 are both detachably connected to the inner tie rod 1 through the mounting seat 4, and the opposite shooting sensor transmitter 31 and the opposite shooting sensor receiver 32 are also detachably connected to the corresponding mounting seat 4, so as to realize the installation of the opposite shooting sensor transmitter 31 and the opposite shooting sensor receiver 32. At the same time, the detachable setting can facilitate disassembly. When the steering tie rod is bent and deformed, the opposite shooting sensor transmitter 31 and the opposite shooting sensor receiver 32 can be directly removed and placed on a new steering tie rod, so as to avoid waste and save resources.

[0044] As a specific implementation method, refer to Figure 4-Figure 6As shown, a through hole is provided on the mounting seat 4, and the through hole is arranged along the length direction of the inner pull rod 1. The mounting seat 4 is sleeved on the inner pull rod 1 through the through hole. The inner pull rod 1 is provided with an annular placement groove 5 at the mounting seat 4, and the inner side of the mounting seat 4 is located in the placement groove 5 and fits with the inner wall of the placement groove 5. At this time, the placement groove 5 can play a positioning effect, which is convenient for the installer to install the opposite-shooting sensor transmitter 31 and the opposite-shooting sensor receiver 32 at a specified gap distance without the need for the staff to manually adjust the distance between the opposite-shooting sensor transmitter 31 and the opposite-shooting sensor receiver 32. At the same time, the placement groove 5 can also limit the mounting seat 4 from sliding along the length direction of the inner pull rod 1. In addition, a first clamping member 6 is also provided on the mounting seat 4, which is suitable for limiting the movement of the mounting seat 4 on the inner pull rod 1 to avoid the movement and rotation of the mounting seat 4. In another embodiment, the mounting seat 4 may not be provided with the first clamping member 6, and it is only necessary to make the mounting seat 4 and the inner pull rod 1 pressed tightly to limit the movement of the mounting seat 4 under the action of friction. There may be multiple sets of the first clamping block 61 and the first clamping slot to achieve a better clamping effect.

[0045] In order to realize that the mounting base 4 can be installed in the placement groove 5 and can be detachably connected, the mounting base 4 includes a first part 41 and a second part 42, and the first part 41 and the second part 42 are symmetrically arranged about the inner pull rod 1. A through groove 8 is provided on the side of the first part 41 facing the second part 42 and the side of the second part 42 facing the first part 41, and the through groove 8 extends in the length direction of the inner pull rod 1 and passes through the side walls of the first part 41 and the second part 42 along the length direction of the inner pull rod 1. A second clamping piece 7 is provided between the first part 41 and the second part 42. When the first part 41 and the second part 42 are connected, the first part 41 and the second part 42 are connected. When the second part 42 is clamped by the second clamping piece 7, the mounting seat 4 is sleeved on the inner pull rod 1. During installation, the through grooves 8 of the first part 41 and the second part 42 are arranged relative to each other and close to each other until the first part 41 and the second part 42 are spliced ​​together. At this time, the first part 41 and the second part 42 are clamped by the second clamping piece 7, and the through grooves 8 on the first part 41 and the second part 42 are spliced ​​to form a through hole, so that the mounting seat 4 is sleeved on the inner pull rod 1. In addition, after splicing, the mounting seat 4 is clamped on the inner pull rod 1 by the first clamping piece 6 to limit the movement of the mounting seat 4 on the inner pull rod 1.

[0046] Specifically, the first clamping component 6 includes a first clamping groove 62 opened at the bottom of the placement groove 5, and an elastic first clamping block 61 is provided on the inner wall of the mounting seat 4 facing the first clamping groove 62. When the mounting seat 4 is located in the placement groove 5, the first clamping block 61 is inserted into the first clamping groove 62 to limit the movement of the mounting seat 4 on the inner pull rod 1. At the same time, the first clamping groove 62 can also be opened on the inner wall of the mounting seat 4, and the first clamping block 61 is set at the bottom of the placement groove 5. As long as the mounting seat 4 can be sleeved in the placement groove 5, the first clamping block 61 is inserted into the first clamping groove 62 to limit the movement of the mounting seat 4 on the inner pull rod 1.

[0047] Specifically, the second clamping member 7 includes an elastic second clamping block 71 and a second clamping groove 72, and the second clamping block 71 and the second clamping groove 72 are respectively arranged on the first part 41 and the second part 42. When the mounting seat 4 is installed on the inner pull rod 1, the second clamping block 71 is inserted into the second clamping groove 72, and the mounting seat 4 is sleeved on the inner pull rod 1. As for the second clamping block 71 and the second clamping groove 72, as long as one can be arranged on the first part 41 and the other can be arranged on the second part 42, when the second part 42 and the first part 41 are assembled, the second clamping block 71 is inserted into the second clamping groove 72 to realize the clamping connection between the second part 42 and the first part 41, and the first part 41 and the second part 42 cannot be separated without the action of external force.

[0048] Example 2

[0049] Reference Figure 1-Figure 6 As shown, this embodiment provides a vehicle. When the vehicle wheel is hit, the steering tie rod will be subjected to impact force, and the inner tie rod 1 will bend and deform in the weakened area 11 to absorb the impact energy received by the steering tie rod, prevent the steering tie rod from breaking, and ensure that the vehicle maintains its steering ability. At this time, when the inner tie rod 1 is deformed, the sensing component 3 will sense the deformation of the inner tie rod 1 and transmit the signal to the alarm component. The alarm component activates the alarm to remind the driver in time, thereby effectively ensuring driving safety.

[0050] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0051] The above is only a specific implementation of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A steering tie rod, characterized in that: include: An inner tie rod, wherein a normal area and a weakened area are provided on the inner tie rod, and an outer diameter of the weakened area is smaller than an outer diameter of the normal area; An outer pull rod is coaxially arranged with the inner pull rod, and one end of the outer pull rod is detachably connected to one end of the inner pull rod; A sensing component, disposed on the inner tie rod, for sensing bending deformation of the weakened area on the inner tie rod; The alarm component is electrically connected to the sensing component.

2. The steering tie rod according to claim 1, characterized in that: The sensing component comprises: A counter-shooting sensor transmitter is arranged on the inner pull rod; The opposite-beam sensor receiving component is arranged on the inner pull rod, the weakened area is located between the opposite-beam sensor transmitting component and the opposite-beam sensor receiving component, the opposite-beam sensor transmitting component is directly opposite to the opposite-beam sensor receiving component, the opposite-beam sensor receiving component receives the light emitted by the opposite-beam sensor transmitting component, and when the weakened area is bent and deformed, the opposite-beam sensor receiving component and the opposite-beam sensor transmitting component are misaligned.

3. The tie rod according to claim 2, characterized in that: The opposite-shooting sensor transmitting component and the opposite-shooting sensor receiving component are both provided with mounting seats, and the opposite-shooting sensor transmitting component and the opposite-shooting sensor receiving component are both detachably connected to the inner pull rod via the mounting seats.

4. The tie rod according to claim 3, characterized in that: The mounting seat is sleeved on the inner pull rod, and the inner pull rod is provided with an annular placement groove at the mounting seat. The mounting seat is located in the placement groove and fits with the inner wall of the placement groove.

5. The steering tie rod according to claim 4, characterized in that: The mounting seat is also provided with a first clamping piece, which is suitable for limiting the movement of the mounting seat on the inner pull rod.

6. The tie rod according to claim 5, characterized in that: The first clamping component includes a first clamping slot opened at the bottom of the placement slot, and an elastic first clamping block is provided on the inner wall of the mounting seat facing the first clamping slot. When the mounting seat is located in the placement slot, the first clamping block is inserted into the first clamping slot to limit the movement of the mounting seat on the inner pull rod.

7. The tie rod according to claim 3, characterized in that: The mounting seat includes a first part and a second part, the first part and the second part are symmetrically arranged about the inner pull rod, a second clamping piece is arranged between the first part and the second part, and when the first part and the second part are clamped by the second clamping piece, the mounting seat is sleeved on the inner pull rod.

8. The tie rod according to claim 7, characterized in that: The second clamping member includes an elastic second clamping block and a second clamping groove, and the second clamping block and the second clamping groove are respectively arranged on the first part and the second part. When the mounting seat is installed on the inner pull rod, the second clamping block is inserted into the second clamping groove, and the mounting seat is mounted on the inner pull rod.

9. The tie rod according to claim 1, characterized in that: The weakened area is located at the center of the steering tie rod in the length direction.

10. A vehicle, characterized in that: The invention comprises a steering tie rod as claimed in any one of claims 1 to 9.

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