Connecting bracket and vehicle steering column connecting structure

Abstract

The utility model discloses a connecting support and a vehicle steering column connecting structure. The connecting support comprises a first part, a second part and a third part which are sequentially connected, the second part is provided with a nut through hole for containing a motor nut of the vehicle steering column, the third part is provided with a connecting piece through hole for a connecting piece of the vehicle steering column to pass through, and the first part is fixedly connected to one side of the second part and extends in the first direction. The bottom of the third part is fixedly connected with the top of the second part, the end, away from the second part, of the first part is fixedly connected with a first convex hull extending in the second direction, and the second direction is perpendicular to the first direction. According to the connecting support, the first convex hull is fixedly connected to the end, far away from the second part, of the first part, when collapsing occurs, the connecting support can be overturned upwards at a small angle to abut against a tubular column shell, on one hand, corresponding friction force is generated, on the other hand, it is ensured that a collapsing curve is stable, the complete collapsing process is ensured, and a driver in an accident is prevented from being injured.

Description

Technical Field

[0001] This utility model relates to the field of vehicle-related technology, and in particular to a connecting bracket and a vehicle steering column connecting structure. Background Technology

[0002] The existing vehicle steering column connector structure includes a steering column and a connecting bracket. The steering column includes a motor nut, a connector, a main shaft, an outer tube of the column, a collapsible guide strip, an adjusting motor, a column housing, a guide groove, and a guide strip housing. The outer tube of the column is fitted over the main shaft, and the column housing is fitted over the outer tube of the column. The wall of the outer tube of the column is connected to and fixed to the guide groove. The connector passes through the connector through hole of the connecting bracket and is inserted into the guide groove. The adjusting motor is fixed relative to the column housing. The shaft of the adjusting motor is connected to the connecting bracket through a motor nut. The motor nut is inserted into the nut through hole of the connecting bracket. The collapsible guide strip covers the connector, and the guide strip housing covers the collapsible guide strip and is connected to the column housing.

[0003] When a vehicle accident occurs, the entire steering column will retract into the engine compartment along the collapsing direction. At this time, the motor nut and connecting bracket of the adjusting motor will rotate during the collapse process, causing the connecting piece to rotate accordingly in the guide groove. This causes the connecting piece to get stuck in the guide groove, which stops the energy absorption of the collapsing assembly and results in an incomplete collapse process, which can easily injure the driver in the accident. Utility Model Content

[0004] Therefore, it is necessary to provide a connecting bracket and a vehicle steering column connection structure to address the technical problem of incomplete collapse process when the steering column collapses in the existing technology.

[0005] This utility model provides a connecting bracket, comprising a first part, a second part, and a third part connected in sequence. The second part has a nut through hole for accommodating a motor nut of a vehicle steering column, and the third part has a connecting part through hole for a connecting member of the vehicle steering column to pass through. The first part is fixedly connected to one side of the second part and extends in a first direction. The bottom of the third part is fixedly connected to the top of the second part. The end of the first part away from the second part is fixedly connected to a first protrusion extending in a second direction, which is perpendicular to the first direction.

[0006] Furthermore, the length of the first portion extending along the first direction is 64.52-180 mm.

[0007] Furthermore, the end of the third part is fixedly connected to a second convex bulge extending along the second direction.

[0008] Furthermore, the second convex bud is fixedly connected to the top of the third part, and the second convex bud is fixed to one end of the top of the third part near the first part.

[0009] Furthermore, the second part also includes a first chamfer located on the other side away from the first part, and the third part also has a second chamfer at the connection with the second part.

[0010] Furthermore, the bottom surface of the third part is provided with a groove extending along the first direction, and the bottom surface of the third part is used to contact the guide groove of the vehicle steering column connection structure.

[0011] Furthermore, the length of the first convex hull is 2-35mm, and the height is 1-8mm.

[0012] Furthermore, the length of the second convex bulge is 2-35mm, and the height is 1-8mm.

[0013] This utility model provides a vehicle steering column connection structure, including: a steering column and a connecting bracket as described above. The steering column includes a motor nut, a connector, a main shaft, an outer tube of the column, a collapsible guide strip, an adjusting motor, a column housing, a guide groove, and a guide strip housing. The outer tube of the column is sleeved outside the main shaft, and the column housing is sleeved outside the outer tube of the column. The wall of the outer tube of the column is connected to and fixed to the guide groove. The connector passes through the connector through hole of the connecting bracket and is inserted into the guide groove. The adjusting motor is fixed relative to the column housing. The motor nut is threaded onto the motor lead screw of the adjusting motor and is inserted into the nut through hole of the connecting bracket. The collapsible guide strip covers the connector, and the guide strip housing covers the collapsible guide strip and is connected to the column housing. The first direction is the opposite direction of the collapsible direction of the steering column.

[0014] The connecting bracket of this utility model has a first protrusion fixedly connected to the end of the first part away from the second part. When a collapse occurs, it can be flipped upward at a small angle to abut against the outer shell of the tube column. On the one hand, it generates a corresponding frictional force, and on the other hand, it ensures the stability of the collapse curve, guarantees the complete collapse process, and avoids injury to the driver in the accident. Attached Figure Description

[0015] Figure 1 This is a front view of a connecting bracket according to an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of the installation of the connecting bracket according to an embodiment of the present invention;

[0017] Figure 3This is a perspective view of a connecting bracket according to an embodiment of the present invention;

[0018] Figure 4 This is a cross-sectional view of a connecting bracket according to an embodiment of the present invention;

[0019] Figure 5 This is a schematic diagram of a vehicle steering column connection structure according to an embodiment of the present invention.

[0020] Marker description

[0021] 1. Connecting bracket; 110. First part; 111. First convex bulge; 120. Second part; 121. Nut through hole; 122. First chamfer; 123. Round hole; 124. Square hole; 130. Third part; 131. Connector through hole; 132. Second convex bulge; 133. Second chamfer; 134. Groove; 135. Upper area; 136. Lower area; 2. Motor nut; 3. Connector; 4. Main shaft; 5. Outer tube of the column; 6. Collapsible guide bar; 7. Adjusting motor; 71. Motor lead screw; 8. Column housing; 9. Guide groove; 10. Guide bar housing. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0023] like Figure 1 The diagram shows a connecting bracket 1 according to an embodiment of the present invention. The connecting bracket includes a first part 110, a second part 120, and a third part 130 connected in sequence. The second part 120 has a nut through hole 121 for accommodating the motor nut 2 of the vehicle steering column. The third part 130 has a connecting member through hole 131 for the connecting member 3 of the vehicle steering column to pass through. The first part 110 is fixedly connected to one side of the second part 120 and extends in a first direction. The bottom of the third part 130 is fixedly connected to the top of the second part. The end of the first part 110 away from the second part 120 is fixedly connected to a first protrusion 111 extending in a second direction, which is perpendicular to the first direction.

[0024] Specifically, the connecting bracket 1 includes a first part 110, a second part 120, and a third part 130. The first part 110 is preferably triangular or wedge-shaped, the second part 120 is preferably square, and the third part is preferably square. A nut through hole 121 is provided in the second part 120, and a connector through hole 131 is provided in the third part 130. Figure 2As shown, the motor nut 2 is inserted into the nut through hole 121 of the vehicle steering column. The connecting through hole 131 connects to the connecting member 3 of the vehicle steering column, which moves along the guide groove 9. Due to the interference fit between the connecting member 3 and the guide groove 9, the two sides of the guide groove 9 deform due to the movement of the connecting member 3, thereby absorbing crumple energy. Compared to a square shape, the triangular or wedge-shaped first part 110 can achieve weight reduction.

[0025] The first convex bulge 111 is located at the end of the first portion 110 away from the second portion 120. When the connecting bracket 1 is installed onto the vehicle steering column, the first direction A is the opposite direction to the crumple direction C of the vehicle steering column, while the second direction B is perpendicular to the first direction A and points towards the third portion 130 of the connecting bracket 1. In the event of crumple, the vehicle steering column crumples in the opposite direction of the first direction A (i.e., the crumple direction C), and the motor nut 2 will drive the connecting bracket 1 along... Figure 2 When the first part 110 rotates clockwise, the first protrusion 111, which is positioned along the second direction B, also rotates clockwise. Since the first protrusion 111 is located at the end of the first part 110, compared to a connecting bracket without a protrusion at the end of the first part, the connecting bracket 1 of this invention can rotate upwards at a relatively small angle to abut against the tubular housing 8. This generates corresponding frictional force, ensuring a stable collapse curve, and also prevents the connecting bracket from rotating upwards at a large angle, ensuring a complete collapse process. If the first protrusion 111 is not provided, when collapse occurs, the connecting bracket needs to rotate upwards at a larger angle to abut against the tubular housing 8, and the length of the abutting portion along the collapse direction is larger.

[0026] The connecting bracket of this utility model has a first protrusion fixedly connected to the end of the first part away from the second part. When a collapse occurs, it can be flipped upward at a small angle to abut against the outer shell of the tube column. On the one hand, it generates a corresponding frictional force to ensure the stability of the collapse curve. On the other hand, it prevents the connecting bracket from flipping upward at a large angle, ensuring the complete collapse process and avoiding personal injury to the driver in the accident.

[0027] In one embodiment, the first portion 110 extends along the first direction A for a length of 64.52 mm to 180 mm.

[0028] Preferably, the length of the first portion 110 extending along the first direction A is 64.52 mm.

[0029] Specifically, the first portion 110 extends along the first direction A, that is, in the opposite direction to the collapse direction. By increasing the length of the first portion 110, making the length of the first portion 110 greater than that in the prior art, the connecting bracket can be flipped at a relatively smaller angle, thereby ensuring the collapse function and collapse stability of the electrically adjustable column.

[0030] In one embodiment, the end of the third portion 130 is fixedly connected to a second convex 132 extending along the second direction B.

[0031] Specifically, the second convex bulge 132 is disposed at the end of the third part 130 where the connecting bracket 1 connects to the connector 3. For example... Figure 2 As shown, during collapse, the connecting bracket can rotate upwards at a small angle to abut against the slotted edge of the tubing housing 8. This generates friction to ensure a stable collapse curve and prevents the connecting bracket from rotating upwards at a large angle, thus ensuring a complete collapse process. If the second protrusion 132 is not provided, during collapse, it needs to rotate upwards at a larger angle to abut against the tubing housing 8, and the length of the third part 130 along the collapse direction will be larger. This will result in a greater degree of rotation of the connecting piece 3, preventing the connecting piece 3 from smoothly completing the entire collapse along the guide groove 9, and thus preventing the steering tubing from collapsing.

[0032] In one embodiment, the second convex 132 is fixedly connected to the top of the third portion 130, and the second convex 132 is fixed to one end of the top of the third portion 130 near the first portion 110.

[0033] Specifically, during the collapse process, the driver is impacted and presses against the steering wheel, which will apply a force to the steering column in the direction of collapse. The motor nut 2 is fixed on the motor screw, and one side of the motor nut 2 is inserted into the nut through hole 121 of the connecting bracket 1 and fixedly connected, thereby generating a torque, which causes the connecting bracket 1 to have an upward flipping tendency, that is, a clockwise flipping tendency. By fixing the second protrusion 132 to the top of the third part 130 near the end of the first part 110, the third part 130 abuts against the slotted edge of the column housing 8.

[0034] In one embodiment, the second portion 120 further includes a first chamfer 122 located on the other side away from the first portion 110, and the third portion 130 also has a second chamfer 133 at the connection with the second portion 120.

[0035] This embodiment sets a first chamfer and a second chamfer to avoid interference with surrounding components.

[0036] In one embodiment, the bottom surface of the third part 130 is further provided with a groove 134 extending in the first direction, and the bottom surface of the third part 130 is used to contact the guide groove 9 of the vehicle steering column connection structure.

[0037] Specifically, the bottom surface of the third part 130 is used to contact the guide groove 9 of the vehicle steering column connection structure. A groove 134 extending in a first direction is excavated on the bottom surface of the third part 130, and the groove 134 is formed by two fine grooves. The connector passes through the connector through hole 131 located on the opposite side of the groove 134, inserts into the guide groove 9, and engages with it to achieve connection.

[0038] Specifically, such as Figure 4 As shown, on the bottom surface of the third part 130 connected to the connector 3 on the connecting bracket 1, the two side areas slightly protrude from the middle area, forming two shallow grooves 134 in the middle area. The two side areas are the upper area 135 located above the grooves 134 and the lower area 136 located below the grooves 134, respectively. The upper and lower areas are... Figure 5 The direction of the middle. Among them, the upper region 135 and the lower region 136 protrude slightly and make better contact with the guide groove 9, which is beneficial to the collapse performance and smooth collapse. On the other hand, the slightly concave middle region serves as a groove 134, which can have a corresponding space to accommodate the material deformation caused by the connector 3 squeezing the guide groove 9 during collapse.

[0039] In one embodiment, the length of the first convex 111 is 2-35mm and the height is 1-8mm.

[0040] Preferably, the length of the first convex bulge 111 is 7.68 mm and the height is 1.7 mm.

[0041] Specifically, if the dimension of the first convex 111 along the collapse direction is increased, making the upper end face of the first portion 110 flush with the first convex 111, there is a risk of interference with the tubing shell 8 during the axial adjustment process (length adjustment process). Therefore, this embodiment limits the length of the first convex 111 along the collapse direction to avoid interference with the tubing shell.

[0042] In one embodiment, the second convex 132 has a length of 2-35 mm and a height of 1-8 mm.

[0043] Preferably, the second convex bulge 132 has a length of 11 mm and a height of 1.2 mm.

[0044] Specifically, if the dimension of the second convex 132 along the collapse direction is increased, so that the upper end face of the third part 130 is flush with the second convex 132, there will be a risk of interference with the tube shell 8 during the axial adjustment process (length adjustment process). Therefore, this embodiment limits the length of the second convex 132 along the collapse direction to avoid interference with the tube shell.

[0045] In some embodiments, the nut through hole 121 is an oblong hole and matches the motor nut 2.

[0046] In some embodiments, the outer right angles of the connecting bracket 1 are all chamfered to remove burrs and improve safety.

[0047] In some embodiments, the connector through hole 131 is a waist-shaped hole similar to a dog bone, and the connector through hole 131 matches the connector 3.

[0048] In some embodiments, the second part 120 further includes round holes 123 on both sides and a square hole 124 in the middle, wherein the round holes 123 are fixing holes through which bolts pass, and the square hole 124 in the middle is a pre-positioning hole for facilitating bolt fixing.

[0049] like Figure 5 As shown, an embodiment of this utility model discloses a vehicle steering column connection structure, including: a steering column and a connecting bracket 1 as described above. The steering column includes a motor nut 2, a connector 3, a main shaft 4, an outer tube 5, a collapsible guide strip 6, an adjusting motor 7, a column housing 8, a guide groove 9, and a guide strip housing 10. The outer tube 5 is sleeved on the main shaft 4, and the column housing 8 is sleeved on the outer tube 5. The wall of the outer tube 5 is connected to and fixed to the guide groove 9. The connector 3 passes through the connector through hole 131 of the connecting bracket 1 and is inserted into the guide groove 9. The adjusting motor 7 is fixed relative to the column housing 8. The motor nut 2 is threaded onto the motor lead screw 71 of the adjusting motor 7, and the motor nut 2 is inserted into the nut through hole 121 of the connecting bracket 1. The collapsible guide strip 6 covers the connector 3, and the guide strip housing 10 covers the collapsible guide strip 6 and is connected to the column housing 8. The first direction is the opposite direction of the collapsible direction of the steering column.

[0050] Specifically, among them, Figure 5 The guide strip housing 10 and the collapsible guide strip 6 are in the installed state and do not cover the connector 3 and the connecting bracket 1. During actual installation, the guide groove 9 is fixed to the wall of the outer pipe 5 of the tubing column. The connector 3 passes through the connector through hole 131 of the third part 130 of the connecting bracket 1 and is then inserted into the guide groove 9. The collapsible guide strip 6 is then placed outside the connector 3, covering the connector 3. The guide strip housing 10 is then placed over the collapsible guide strip 6 and bolted to the tubing column housing 8. Meanwhile, the motor nut 2 is threaded onto the motor screw 71. Adjusting the motor 7 drives the motor screw 71 to rotate, converting the rotational motion of the motor screw 71 into the linear motion of the motor nut 2. Simultaneously, the motor nut 2 is inserted into the nut through hole 121 of the connecting bracket 1, thereby causing the connecting bracket 1 to rotate under the torque generated by the external force during collapse.

[0051] The vehicle steering column connection structure of this utility model has a first protrusion fixedly connected to the end of the first part away from the second part of the connecting bracket. When a collapse occurs, it can flip upward at a small angle to abut against the column shell. On the one hand, it generates corresponding friction to ensure the stability of the collapse curve. On the other hand, it avoids the connecting bracket flipping upward at a large angle, ensuring the complete collapse process and avoiding personal injury to the driver in an accident.

[0052] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A connection bracket (1), characterized in that The motor nut (2) of the vehicle steering column is accommodated in the nut through hole (121) of the second part (120), the connecting piece (3) of the vehicle steering column passes through the connecting piece through hole (131) of the third part (130), the first part (110) is fixedly connected on one side of the second part (120) and extends in the first direction, the bottom of the third part (130) is fixedly connected with the top of the second part, the end of the first part (110) away from the second part (120) is fixedly connected with the first convex (111) extending in the second direction, and the second direction is perpendicular to the first direction.

2. The connecting bracket (1) according to claim 1, characterized in that The length of the first part (110) extending in the first direction is 64.52-180mm.

3. The connecting bracket (1) according to claim 1, characterized in that The end of the third part (130) is fixedly connected with the second convex (132) extending in the second direction.

4. The connecting bracket (1) according to claim 3, characterized in that The second convex (132) is fixedly connected with the top of the third part (130), and the second convex (132) is fixed on one end of the top of the third part (130) close to the first part (110).

5. The connecting bracket (1) according to claim 1, characterized in that The second part (120) further comprises a first cut corner (122) located on the other side away from the first part (110), and the third part (130) is further provided with a second cut corner (133) at the connection with the second part (120).

6. The connecting bracket (1) according to claim 1, characterized in that The bottom surface of the third part (130) is further provided with a groove (134) extending in the first direction, and the bottom surface of the third part (130) is used to contact the guide groove (9) of the connecting structure of the vehicle steering column.

7. The connecting bracket (1) according to claim 1, characterized in that The length of the first convex (111) is 2-35mm, and the height is 1-8mm.

8. The connecting bracket (1) according to claim 3, characterized in that The length of the second convex (132) is 2-35mm, and the height is 1-8mm.

9. A vehicle column connection structure characterized by comprising: The motor nut (2) of the vehicle steering column is accommodated in the nut through hole (121) of the second part (120), the connecting piece (3) of the vehicle steering column passes through the connecting piece through hole (131) of the third part (130), the first part (110) is fixedly connected on one side of the second part (120) and extends in the first direction, the bottom of the third part (130) is fixedly connected with the top of the second part, the end of the first part (110) away from the second part (120) is fixedly connected with the first convex (111) extending in the second direction, and the second direction is perpendicular to the first direction. The steering column and the connecting bracket (1) as claimed in any one of claims 1 to 8, the steering column comprising a motor nut (2), a connecting piece (3), a main shaft (4), a column outer tube (5), a collapse guide bar (6), an adjusting motor (7), a column shell (8), a guide groove (9) and a guide bar shell (10), the column outer tube (5) being sleeved outside the main shaft (4), the column shell (8) being sleeved outside the column outer tube (5), the tube wall of the column outer tube (5) being connected and fixed with the guide groove (9), the connecting piece (3) penetrating through the connecting piece through hole (131) of the connecting bracket (1) and being inserted into the guide groove (9), the adjusting motor (7) being fixed relative to the column shell (8), the motor nut (2) being threadedly sleeved on the motor lead screw (71) of the adjusting motor (7), and the motor nut (2) being inserted into the nut through hole (121) of the connecting bracket (1), the collapse guide bar (6) covering the connecting piece (3), the guide bar shell (10) covering the collapse guide bar (6) and being connected with the column shell (8), the first direction being the reverse direction of the collapse direction of the steering column.

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