Lifting mechanism for guiding straight tube supporting rod

Abstract

The utility model discloses a lifting mechanism for guiding a straight tube supporting rod. The lifting mechanism comprises a fixed base, the lead screw is installed at the upper end of the fixed base through a plane bearing and provided with a matched lead screw nut, and the lead screw nut is provided with a radially-protruding fixed end; the driving gear is connected with the lead screw through a spline; the guide shaft is installed on the fixed base, the lead screw nut is sleeved with the guide shaft, the fixed end of the lead screw nut is exposed, the guide shaft limits the lead screw nut in the radial direction, and a lead screw fixing base is arranged at the upper end of the guide shaft; the guide rail is sleeved on the guide shaft, the guide rail is fixed with the fixed end of the lead screw nut, and the guide rail is arranged on an automobile spoiler. According to the utility model, the lead screw and the lead screw nut are connected with the guide rail serving as the supporting rod, so that larger lifting torque can be provided, and the provided lifting force is 3-5 times of that of a connecting rod structure. In the aspect of appearance, the guide rail supporting rod is an integrated smooth surface, no mechanical group is exposed outside, the guide rail supporting rod is attractive, waterproof and dustproof, and the service life of the guide rail supporting rod is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of tail wing lifting mechanisms, in particular to a lifting mechanism for guiding a straight-tube support rod. Background Art

[0002] When a car is driving at high speed, it is affected by air flow or steering, and the car tires cannot grip the ground firmly, which makes it easy to slip and spin. The rear wing of a car can be raised when the car is driving at high speed. The spoiler of the rear wing interferes with the air flow, and the wind resistance provides downforce to the rear of the car, so that the vehicle can have stable control performance even when driving at high speed. The commonly used lifting mechanism is a multi-link mechanism. The driving method of the multi-link mechanism is that the drive shaft directly connects the drive arm to perform torsional movement. The mechanism is affected by the lever principle and can provide limited lifting force. When the speed of the car body exceeds the theoretical speed of the rear wing lifting, the rear wing can only be folded and cannot be lifted, which reduces the control adaptability of the rear wing.

[0003] Therefore, there is an urgent need for a new lifting mechanism that can provide a larger lifting torque, has no mechanical group exposed to the outside, is waterproof and dustproof, and has a long service life. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is to provide a lifting mechanism for guiding a straight-tube strut, so as to avoid the trouble of insufficient lifting force and poor durability of the tail wing in the previous multi-link mechanism lifting.

[0005] In order to solve the above technical problems, the utility model discloses a lifting mechanism for guiding a straight-tube support rod, which is applied to the installation of a car tail wing, comprising:

[0006] Fixed base;

[0007] A screw rod is mounted on the upper end of the fixed base through a plane bearing, the screw rod has a matching screw rod nut, and the screw rod nut has a radially protruding fixed end;

[0008] A driving gear connected to the lead screw through a spline and located at the lower end of the fixed base;

[0009] A guide shaft is installed on the fixed base, the guide shaft sleeve is provided with a screw nut, and the fixed end of the screw nut is exposed, the guide shaft radially limits the screw nut, and a screw fixing seat is provided at the upper end;

[0010] A guide rail is sleeved on the guide shaft, the guide rail and the fixed end of the lead screw nut are fixed to each other, and the guide rail is installed on the rear wing of the car;

[0011] When the driving gear drives the lead screw to rotate, the lead screw nut drives the guide rail to move axially on the guide shaft.

[0012] According to an embodiment of the utility model, the upper and lower ends of the fixed base are respectively provided with inner concave grooves for installing plane bearings.

[0013] According to an embodiment of the utility model, the upper side of the fixed base further comprises a guide column portion located at one side of the inner concave groove, and the guide column portion and the fixed end of the screw nut are arranged at two opposite sides.

[0014] According to an embodiment of the utility model, the above-mentioned fixed base is also provided with a fixed shaft sleeve, the fixed shaft sleeve is sleeved on the lower end of the guide shaft and penetrates the guide column part.

[0015] According to one embodiment of the utility model, the two sides of the guide shaft are arc-shaped, one side is sleeved with a screw rod, the other side is sleeved with a guide column part, and the guide column part is locked by screws.

[0016] According to an embodiment of the utility model, a sliding sleeve is provided at the upper end of the guide shaft, and the sliding sleeve is used to cooperate with the guide rail.

[0017] According to an embodiment of the utility model, the two sides of the guide rail are respectively a sliding end and an assembly end, the sliding end slides with the guide shaft, and the assembly end is used to install the rear wing of the car.

[0018] According to an embodiment of the utility model, a screw shaft sleeve is arranged inside the screw fixing seat, and the screw shaft sleeve is sleeved on the upper end of the screw.

[0019] According to an embodiment of the utility model, the driving gear is configured as a bevel gear.

[0020] Compared with the prior art, the utility model can obtain the following technical effects:

[0021] The guide rail as a support rod is connected with the lead screw and lead screw nut to provide a large lifting torque, which is 3-5 times the lifting force of the connecting rod structure. In terms of appearance, the guide rail support rod is a smooth surface with no mechanical group exposed outside, which is not only beautiful, but also waterproof and dustproof, and improves the durability.

[0022] Of course, any product implementing the present utility model does not necessarily need to achieve all of the above-mentioned technical effects at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0024] Figure 1 It is a three-dimensional diagram of a lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model;

[0025] Figure 2 It is an exploded view of a lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model;

[0026] Figure 3 It is a cross-sectional view of a lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model before lifting;

[0028] Figure 5 It is a schematic diagram of the lifting mechanism for guiding the straight-tube support rod according to an embodiment of the utility model after lifting.

[0029] Reference numerals

[0030] Fixed base 1, plane bearing 2, fixed shaft sleeve 3, screw nut 4, screw 5, guide shaft 6, screw fixing seat 7, guide rail 8, screw shaft sleeve 9, sliding shaft sleeve 10, driving gear 11. DETAILED DESCRIPTION

[0031] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0032] Please refer to Figures 1 to 5 , Figure 1 It is a three-dimensional diagram of a lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model; Figure 2 It is an exploded view of a lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model; Figure 3 It is a cross-sectional view of a lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model; Figure 4 This is a schematic diagram of the lifting mechanism for guiding a straight-tube support rod according to an embodiment of the utility model before lifting; Figure 5 This is a schematic diagram of the lifting mechanism for guiding the straight support rod of the embodiment of the utility model after lifting. For the convenience of illustration, Figure 4 and Figure 5 The left half of the guide rail 8 is omitted.

[0033] As shown in the figure, a lifting mechanism for guiding a straight-tube strut is applied to the installation of a car rear wing, comprising: a fixed base 1; a screw rod 5 installed on the upper end of the fixed base 1 through a plane bearing 2, the screw rod 5 having a matching screw rod nut 4, and the screw rod nut 4 having a radially protruding fixed end; a driving gear 11 connected to the screw rod 5 through a spline and located at the lower end of the fixed base 1; a guide shaft 6 installed on the fixed base 1, the guide shaft 6 is sleeved with the screw rod nut 4, and the fixed end of the screw rod nut 4 is exposed, the guide shaft 6 radially limits the screw rod nut 4, and a screw rod fixing seat 7 is provided at the upper end; a guide rail 8 sleeved on the guide shaft 6, the guide rail 8 and the fixed end of the screw rod nut 4 are fixed to each other, and the guide rail 8 is installed on the car rear wing; wherein, when the driving gear 11 drives the screw rod 5 to rotate, the screw rod nut 4 drives the guide rail 8 to move axially on the guide shaft.

[0034] In one embodiment of the utility model, the fixed base 1 is a bottom base, fixed to the rear of the car, and used to install the car tail. The screw 5 is passed through the fixed base 1 through the plane bearing 2, and its lower end is connected to the driving gear 11 through a spline to complete the power transmission, and the upper end is fixed and limited by the guide shaft 6. Specifically, the guide shaft 6 is fixed to the fixed base 1, which is sleeved with the screw 5 and its screw nut 4. The screw nut 4 is not circular, and has a protruding fixed end on the right side. The fixed end exposes the guide shaft 6 and is fixed to the guide rail 8, so that when the screw 5 rotates, the screw nut 4 does not rotate. Since the limit of the guide shaft 6 only moves axially, it drives the guide rail 8 fixed thereto to perform lifting and lowering movements, and further drives the tail wing to lift.

[0035] The upper and lower ends of the fixed base 1 of the utility model are respectively provided with inner concave grooves for installing the plane bearing 2. The plane bearing 2 is arranged up and down to support the screw rod 5, reduce direct friction wear, and increase the service life of the screw rod 5 shaft.

[0036] In addition, the upper side of the fixed base 1 also has a guide column portion located on one side of the inner concave groove, and the guide column portion and the fixed end of the screw nut 4 are arranged on two opposite sides, which are used to lock the guide shaft 6.

[0037] Furthermore, the fixed base 1 is also provided with a fixed shaft sleeve 3 , which is sleeved on the lower end of the guide shaft 6 and penetrated by a guide column portion, which serves as an accessory for supporting and positioning the guide shaft 6 .

[0038] The two sides of the guide shaft 6 of the utility model are arc-shaped respectively, and the middle is connected by a straight line, that is, a double-headed cylindrical shape, which has high strength. A screw rod 5 is sleeved on one side, and a guide column part is sleeved on the other side. The guide column part is locked by screws to complete the connection and fixation of the guide shaft 6 and the fixed base 1.

[0039] In addition, a sliding sleeve 10 is provided at the upper end of the guide shaft 6, and the sliding sleeve 10 is used to cooperate with the guide rail 8 to reduce mutual friction during lifting and make the operation smoother.

[0040] The screw fixing seat 7 is located at the upper end of the guide shaft 6 and is used to fix the upper end of the screw 5. Specifically, a screw shaft sleeve 9 is provided inside thereof, and the screw shaft sleeve 9 is sleeved on the upper end of the screw 5, thereby ensuring that the screw 5 only performs rotational motion and does not perform up and down motion.

[0041] The two sides of the guide rail 8 of the utility model are respectively a sliding end and an assembly end. The sliding end slides with the guide shaft 6 to complete the up and down movement. The assembly end is used to install the car tail wing. It is an integrated smooth surface with no mechanical group exposed outside. It is not only beautiful, but also waterproof and dustproof, and improves durability.

[0042] In addition, the driving gear 11 is configured as a bevel gear, which has a strong load-bearing capacity.

[0043] In summary, the utility model can provide a large lifting torque by connecting the guide rail 8 as a support rod through the screw rod 5 and the screw rod nut 4. The lifting force provided is 3-5 times that of the connecting rod structure, providing a new lifting method for the lifting support rod. In terms of appearance, the guide rail support rod is an integrated smooth surface with no mechanical group exposed outside, which is not only beautiful, but also waterproof and dustproof, and improves the durability.

[0044] The above description shows and describes several preferred embodiments of the utility model, but as mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A lifting mechanism for guiding a straight-tube support rod, used for installing a car rear wing, characterized in that: include: Fixed base; A screw rod mounted on the upper end of the fixed base through a plane bearing, the screw rod having a matching screw rod nut, and the screw rod nut having a radially protruding fixed end; A driving gear connected to the screw rod via a spline and located at the lower end of the fixed base; A guide shaft mounted on the fixed base, the guide shaft sleeved with the screw nut, with the fixed end of the screw nut exposed, the guide shaft radially limiting the screw nut, and a screw fixing seat disposed at the upper end; A guide rail sleeved on the guide shaft, the guide rail and the fixed end of the lead screw nut are fixed to each other, and the guide rail is installed on the rear wing of the car; When the driving gear drives the screw to rotate, the screw nut drives the guide rail to move axially on the guide shaft.

2. The lifting mechanism for guiding a straight-tube support rod according to claim 1, characterized in that: The upper and lower ends of the fixed base are respectively provided with inner concave grooves for installing the plane bearing.

3. The lifting mechanism for guiding a straight-tube support rod according to claim 2, characterized in that: The upper side of the fixed base further comprises a guide column portion located at one side of the inner concave groove, and the guide column portion and the fixed end of the screw nut are arranged at two opposite sides.

4. The lifting mechanism for guiding a straight-tube support rod according to claim 3, characterized in that: The fixed base is further provided with a fixed shaft sleeve, which is sleeved on the lower end of the guide shaft and penetrates the guide column part.

5. The lifting mechanism for guiding a straight-tube support rod according to claim 4, characterized in that: The two sides of the guide shaft are arc-shaped, one side is sleeved with the screw rod, the other side is sleeved with the guide column part, and the guide column part is locked by screws.

6. The lifting mechanism for guiding a straight-tube support rod according to claim 4, characterized in that: A sliding sleeve is provided at the upper end of the guide shaft, and the sliding sleeve is used to cooperate with the guide rail.

7. The lifting mechanism for guiding a straight-tube support rod according to claim 1, characterized in that: The two sides of the guide rail are respectively a sliding end and an assembly end, the sliding end slidably cooperates with the guide shaft, and the assembly end is used to install the rear wing of the car.

8. The lifting mechanism for guiding a straight-tube support rod according to claim 1, characterized in that: A screw shaft sleeve is arranged inside the screw fixing seat, and the screw shaft sleeve is sleeved on the upper end of the screw.

9. The lifting mechanism for guiding a straight-tube support rod according to claim 1, characterized in that: The driving gear is configured as a bevel gear.

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