CN218623813U - Balance rod of electric tail gate of automobile - Google Patents

Abstract

The utility model relates to an automobile electric tail gate balancing pole, which comprises a ball socket end cover, a ball socket nut, an outer sleeve, a spring sleeve, a mechanical spring and a gas spring, wherein the outer sleeve, the spring sleeve, the mechanical spring and the gas spring are sequentially sleeved from outside to inside; a first connecting shaft extends from one end of the ball socket end cover, a first shaft shoulder is arranged on the ball socket end cover, a partition layer extends inwards from the inner periphery of the outer sleeve, the end part of the outer sleeve is sleeved on the first connecting shaft and is contacted with the end face of the first connecting shaft, the end part of the outer sleeve is contacted with the first shaft shoulder, and a cylinder body of the air spring penetrates through the partition layer and is fixedly connected with the ball socket end cover; a second connecting shaft extends from one end of the ball-and-socket nut, a second shaft shoulder is arranged on the ball-and-socket nut, a limiting flange extends inwards from one end of the spring sleeve, which is far away from the ball-and-socket end cover, the limiting flange is sleeved on the second connecting shaft and is contacted with the second shaft shoulder, and a piston rod of the gas spring is fixedly connected with the ball-and-socket nut; two ends of the mechanical spring are respectively contacted with the interlayer and the limiting flange so as to fix the outer sleeve and the spring sleeve.

Description

Balance rod of electric tail gate of automobile

Technical Field

The utility model belongs to the technical field of auto electric tail-gate, especially, relate to an auto electric tail-gate balancing pole.

Background

With the demand of people on automobile configuration becoming higher and higher, the electric tail gate of the automobile is widely favored. The single electric stay bar driving system and the double electric stay bar driving system are used for the electric tail gate of the automobile in the market at present, wherein the single electric stay bar driving system is that an electric stay bar and a balance bar are respectively installed on the left side and the right side of the tail gate, the electric stay bar provides a driving supporting function, the balance bar provides an auxiliary supporting function, the balance bar is a product combining a mechanical spring and a gas spring, and the balance bar is matched with the electric stay bar to realize hovering and auxiliary supporting of the tail gate at any position in the opening process. The outer sleeve of the existing balance rod is fastened on the ball socket end cover in the modes of interference fit or buckle connection and the like, so that the precision requirement on parts is high, the assembly is difficult, the risk of infirm assembly exists, and the appearance is not attractive.

SUMMERY OF THE UTILITY MODEL

For the balancing pole assembly difficulty and the insecure problem of assembly of the electronic tail-gate of car that solves prior art existence, the utility model provides an electronic tail-gate balancing pole of car.

In order to solve the technical problem, the technical scheme adopted by the utility model is that the automobile electric tail gate balancing pole comprises an outer sleeve, a ball socket end cover, an air spring, a mechanical spring, a spring sleeve and a ball socket nut, wherein the outer sleeve, the spring sleeve, the mechanical spring and the air spring are sequentially sleeved from outside to inside, and the spring sleeve is arranged along the outer sleeve in a sliding manner;

a first connecting shaft extends from one end of the ball socket end cover along the axial direction of the ball socket end cover, a first shaft shoulder is arranged on the ball socket end cover, a partition layer extends inwards from the inner periphery of the outer sleeve, the end part of the outer sleeve is sleeved on the first connecting shaft, the partition layer is in contact with the end face of the first connecting shaft, the end part of the outer sleeve is in contact with the first shaft shoulder, and a cylinder body of the air spring penetrates through the partition layer and is fixedly connected with the ball socket end cover;

a second connecting shaft extends from one end of the ball socket nut along the axial direction of the ball socket nut, a second shaft shoulder is arranged on the ball socket nut, a limiting flange extends inwards from one end, away from the ball socket end cover, of the spring sleeve, the limiting flange is sleeved on the second connecting shaft and is in contact with the second shaft shoulder, and a piston rod of the gas spring is fixedly connected with the ball socket nut; and two ends of the mechanical spring are respectively contacted with the interlayer and the limiting flange so as to fix the outer sleeve and the spring sleeve.

Preferably, the piston rod is fixedly connected with the ball socket nut through threads; the cylinder body is fixedly connected with the ball socket end cover through threads. Facilitating assembly of the ball nut and the ball end cap.

Furthermore, a second positioning hole and a second connecting hole are sequentially formed in the ball socket nut, an opening of the second positioning hole is located on the end face of the second connecting shaft, and the end portion of the piston rod penetrates through the second positioning hole and is in threaded fixed connection with the second connecting hole. Because the screw thread can not be accurately positioned, the screw hole is lengthened, namely, a second positioning hole and a second connecting hole are sequentially formed in the ball-and-socket nut, the upper end of the ball-and-socket nut is positioned, the lower end of the ball-and-socket nut is in threaded connection, the ball-and-socket nut is effectively prevented from shifting coaxially after being screwed into the air spring, and the axial bending strength of the screw hole is enhanced by the aid of the screw thread positioning.

Furthermore, a first positioning hole and a first connecting hole are sequentially formed in the ball socket end cover, an opening of the first positioning hole is located in the end face of the first connecting shaft, and the end portion of the cylinder body penetrates through the first positioning hole and is in threaded fixed connection with the first connecting hole. Because the screw thread can not be accurately positioned, the screw thread hole is lengthened, namely, a first positioning hole and a first connecting hole are sequentially formed in the ball socket end cover, the upper end is positioned, the lower end is in threaded connection, the ball socket end cover is effectively prevented from shifting coaxially after being screwed into the air spring, and the axial bending strength of the screw thread hole is further enhanced by the aid of the thread positioning.

Preferably, a gasket is arranged at the interlayer, and the end part of the mechanical spring is in contact with the gasket. After assembly, the interlayer is in contact with the end face of the first connecting shaft, the interlayer of the outer sleeve is pressed on the end face of the first connecting shaft through the pressing gasket by the mechanical spring, so that the outer sleeve and the ball socket end cover are fastened, and the reliability and the stability of pressing and fixing are improved by the arrangement of the gasket.

Preferably, the end part, far away from the ball socket end cover, of the spring sleeve is provided with a plurality of water drainage grooves, the water drainage grooves are sequentially distributed at intervals around the circumference of the spring sleeve, a gap exists between the limiting flange and the second connecting shaft, and the water drainage grooves are communicated with the inside and the outside of the spring sleeve through the gap; the ball socket end cover is connected with the automobile tail door, and the ball socket nut is connected with the automobile tail box. Traditional tail-gate balancing pole is mostly in spring housing's periphery trompil as the drainage design, and the manufacturing degree of difficulty is big, and is not pleasing to the eye, and the water drainage tank of this application is opened at spring housing's tip, and the gap between spring housing below and the ball-and-socket nut carries out the drainage promptly, and the drainage is effectual, and the surface does not have the wash port, has reduced spring housing's the manufacturing degree of difficulty, also makes this tail-gate balancing pole more pleasing to the eye.

Furthermore, a limiting block is formed between every two adjacent drainage grooves, and the limiting blocks are located on the periphery of the ball socket nut and coaxially limit the ball socket nut. Traditional spring sleeve and ball socket nut's coaxial spacing design, unable spring sleeve and ball socket nut's centre bore fit clearance too big, the clearance undersize can't reach bottom drainage effect, and this tail-gate balancing pole's spring sleeve is ingenious carries out coaxial spacing through stopper and ball socket nut cooperation to make spring sleeve and ball socket nut's centre bore cooperation gap grow play good drainage effect.

Has the advantages that: the utility model discloses an auto electric tail-gate balancing pole, the outer tube directly pack into ball socket end cover can, need not any fastening design, when mechanical spring pressed in, the elasticity of mechanical spring can compress tightly the outer tube and fix on ball socket end cover, the assembly is very convenient, firm and pleasing to the eye, and the precision requirement to the spare part is not high, is convenient for manufacturing, the cost is lower; the utility model discloses an electronic tail-gate stabilizer of car, the screw hole of ball socket nut and ball socket end cover has carried out the extension design, sets gradually second locating hole and second connecting hole on ball socket nut promptly to and set gradually first locating hole and first connecting hole on the ball socket end cover, the upper end location, lower extreme threaded connection, prevent effectively that ball socket nut and ball socket end cover from twisting the skew on the same axle after the air spring, realized that screw thread location has still strengthened the anti bending strength of screw hole axial.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic perspective view of an automotive electric tail gate balancing pole according to the present invention;

fig. 2 is a schematic sectional view of the balance bar of the electric tailgate of the automobile of the present invention;

FIG. 3 is an enlarged partial schematic view of A in FIG. 2;

FIG. 4 is an enlarged partial schematic view of B in FIG. 2;

FIG. 5 is a schematic diagram of a partial explosion of a spring sleeve and a ball-and-socket nut of the balance bar of the electric tailgate of the vehicle according to the present invention;

in the figure: 1. outer tube, 11, interlayer, 2, ball socket end cover, 21, first shaft shoulder, 22, first connecting axle, 23, first locating hole, 24, first connecting hole, 3, air spring, 31, cylinder body, 32, piston rod, 4, mechanical spring, 5, spring sleeve, 51, spacing flange, 52, water drainage tank, 53, stopper, 6, ball-and-socket nut, 61, second shaft shoulder, 62, second connecting axle, 63, second locating hole, 64, second connecting hole, 7, gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 4, an electric tailgate balance rod for an automobile comprises an outer sleeve 1, a ball socket end cap 2, a gas spring 3, a mechanical spring 4, a spring sleeve 5 and a ball socket nut 6, wherein the outer sleeve 1, the spring sleeve 5, the mechanical spring 4 and the gas spring 3 are sequentially sleeved from outside to inside, and the spring sleeve 5 is slidably arranged along the outer sleeve 1; a first connecting shaft 22 extends from one end of the ball socket end cover 2 along the axial direction of the ball socket end cover, a first shaft shoulder 21 is arranged on the ball socket end cover 2, a partition 11 extends inwards from the inner circumference of the outer sleeve 1, the end of the outer sleeve 1 is sleeved on the first connecting shaft 22, the partition 11 is in contact with the end surface of the first connecting shaft 22, the end of the outer sleeve 1 is in contact with the first shaft shoulder 21, and a cylinder body 31 of the gas spring 3 penetrates through the partition 11 and is fixedly connected with the ball socket end cover 2; a second connecting shaft 62 extends from one end of the ball nut 6 along the axial direction thereof, a second shoulder 61 is arranged on the ball nut 6, a limiting flange 51 extends inwards from one end of the spring sleeve 5 away from the ball end cover 2, the limiting flange 51 is sleeved on the second connecting shaft 62, the limiting flange 51 is in contact with the second shoulder 61, and the piston rod 32 of the gas spring 3 is fixedly connected with the ball nut 6; the two ends of the mechanical spring 4 are respectively contacted with the interlayer 11 and the limiting flange 51 to fix the outer sleeve 1 and the spring sleeve 5.

In order to improve the assembly accuracy and the bending strength of the balance bar, in the embodiment, the piston rod 32 is fixedly connected with the ball nut 6 in a threaded manner; specifically, a second positioning hole 63 and a second connecting hole 64 are sequentially formed in the ball nut 6, an opening of the second positioning hole 63 is located on an end face of the second connecting shaft 62, and an end portion of the piston rod 32 passes through the second positioning hole 63 and is fixedly connected with the second connecting hole 64 in a threaded manner; the cylinder body 31 and the ball socket end cover 2 are also fixedly connected through threads; specifically, a first positioning hole 23 and a first connection hole 24 are sequentially formed in the ball socket end cover 2, an opening of the first positioning hole 23 is located on an end surface of the first connection shaft 22, and an end portion of the cylinder 31 penetrates through the first positioning hole 23 and is fixedly connected with the first connection hole 24 through threads. Because the screw thread can not be accurately positioned, the screw thread hole is lengthened, namely, a second positioning hole 63 and a second connecting hole 64 are sequentially formed in the ball-and-socket nut 6, a first positioning hole 23 and a first connecting hole 24 are sequentially formed in the ball-and-socket end cover 2, the upper end of the ball-and-socket end cover is positioned, the lower end of the ball-and-socket end cover is in threaded connection, the ball-and-socket nut 6 and the ball-and-socket end cover 2 are effectively prevented from shifting coaxially after being screwed into the air spring 3, and the axial bending strength of the screw thread hole is enhanced by the threaded positioning.

In order to improve the reliability and stability of the fixation of the outer sleeve 1, in this embodiment, a gasket 7 is arranged at the interlayer 11, the end of the mechanical spring 4 is in contact with the gasket 7, the interlayer 11 is in contact with the end face of the first connecting shaft 22 after assembly, the mechanical spring 4 presses the interlayer 11 of the outer sleeve 1 against the end face of the first connecting shaft 22 through the pressing gasket 7, so that the outer sleeve 1 and the ball socket end cover 2 are fastened, and the reliability and stability of the pressing fixation are improved by the arrangement of the gasket 7.

As shown in fig. 5, in order to improve the drainage performance of the balance bar of the electric tailgate of the automobile, in this embodiment, a plurality of drainage grooves 52 are formed in an end portion of the spring sleeve 5 away from the ball-and-socket end cap 2, the drainage grooves 52 are sequentially distributed at intervals around the circumference of the spring sleeve 5, a gap exists between the limit flange 51 and the second connecting shaft 62, and the drainage grooves 52 communicate the inside of the spring sleeve 5 with the outside through the gap; the ball socket end cover 2 is connected with a ball head on an automobile tail gate, the ball socket nut 6 is connected with the ball head on an automobile tail box, namely, a gap between the lower part of the spring sleeve 5 and the ball socket nut 6 is used for draining water, the drainage effect is good, no drainage hole is formed in the surface, the manufacturing difficulty of the spring sleeve 5 is reduced, and the tail gate balancing pole is more attractive; a limiting block 53 is formed between the adjacent drainage grooves 52, and the limiting blocks 53 are positioned at the periphery of the ball socket nut 6 and coaxially limit the ball socket nut 6, so that the matching gap between the limiting flange 51 and the central hole of the second connecting shaft 62 is increased to achieve a good drainage effect.

The assembly process of the balancing rod of the electric tail gate of the automobile is as follows:

firstly, a gasket 7 is placed on an interlayer 11, then the air spring 3, the mechanical spring 4 and the outer sleeve 1 are sequentially sleeved from inside to outside, then the ball socket end cover 2 is fixedly connected with a cylinder body 31 of the air spring 3 in a threaded manner, at the moment, the end part of the cylinder body 31 penetrates through the interlayer 11 and the first positioning hole 23 and is fixedly connected with the first connecting hole 24 in a threaded manner, the end part of the outer sleeve 1 is sleeved on the first connecting shaft 22, then the spring sleeve 5 is sleeved on the mechanical spring 4, one end of the spring sleeve 5 is slid into the outer sleeve 1, then the ball socket nut 6 is fixedly connected with a piston rod 32 of the air spring 3 in a threaded manner, at the moment, the end part of the piston rod 32 penetrates through the second positioning hole 63 and is fixedly connected with the second connecting hole 64 in a threaded manner, a limit flange 51 is sleeved on the second connecting shaft 62 and is in contact with a second shaft shoulder 61, a plurality of limit flanges 53 are positioned at the periphery of the ball socket nut 6 and coaxially limit the ball socket nut 6, the mechanical spring 4 tightly presses the interlayer 11 of the outer sleeve 1 on the end surface of the first connecting shaft 22 through the compression gasket 7, and the ball socket end cover 5 and the ball socket end cover 2 and the ball socket end cover 5 are tightly fastened with the ball socket end surface of the ball socket nut 5.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims (7)

1. The utility model provides an electronic tail-gate balancing pole of car which characterized in that: the ball socket comprises an outer sleeve (1), a ball socket end cover (2), an air spring (3), a mechanical spring (4), a spring sleeve (5) and a ball socket nut (6), wherein the outer sleeve (1), the spring sleeve (5), the mechanical spring (4) and the air spring (3) are sequentially sleeved from outside to inside, and the spring sleeve (5) is arranged along the outer sleeve (1) in a sliding manner;

a first connecting shaft (22) extends from one end of the ball socket end cover (2) along the axial direction of the ball socket end cover, a first shaft shoulder (21) is arranged on the ball socket end cover (2), a partition layer (11) extends inwards from the inner circumference of the outer sleeve (1), the end of the outer sleeve (1) is sleeved on the first connecting shaft (22), the partition layer (11) is in contact with the end face of the first connecting shaft (22), the end of the outer sleeve (1) is in contact with the first shaft shoulder (21), and a cylinder body (31) of the air spring (3) penetrates through the partition layer (11) and is fixedly connected with the ball socket end cover (2);

a second connecting shaft (62) extends from one end of the ball socket nut (6) along the axial direction of the ball socket nut, a second shaft shoulder (61) is arranged on the ball socket nut (6), a limiting flange (51) extends inwards from one end, far away from the ball socket end cover (2), of the spring sleeve (5), the limiting flange (51) is sleeved on the second connecting shaft (62), the limiting flange (51) is in contact with the second shaft shoulder (61), and a piston rod (32) of the gas spring (3) is fixedly connected with the ball socket nut (6); and two ends of the mechanical spring (4) are respectively contacted with the interlayer (11) and the limiting flange (51) so as to fix the outer sleeve (1) and the spring sleeve (5).

2. The automotive power tailgate balance bar of claim 1, wherein: the piston rod (32) is fixedly connected with the ball socket nut (6) through threads; the cylinder body (31) is fixedly connected with the ball socket end cover (2) through threads.

3. The balance bar of the automotive electric tailgate according to claim 2, characterized in that: and a second positioning hole (63) and a second connecting hole (64) are sequentially formed in the ball socket nut (6), the opening of the second positioning hole (63) is located on the end face of the second connecting shaft (62), and the end part of the piston rod (32) penetrates through the second positioning hole (63) and is in threaded fixed connection with the second connecting hole (64).

4. The balance bar of the automotive electric tailgate according to claim 3, characterized in that: first locating hole (23) and first connecting hole (24) have been seted up in proper order on ball socket end cover (2), the opening of first locating hole (23) is located the terminal surface of first connecting axle (22), the tip of cylinder body (31) passes first locating hole (23) and with first connecting hole (24) thread fixed connection.

5. The automotive power tailgate counterbalance bar of claim 1, 2, 3, or 4, wherein: a gasket (7) is arranged at the position of the interlayer (11), and the end part of the mechanical spring (4) is in contact with the gasket (7).

6. The automotive power tailgate counterbalance bar of claim 1, 2, 3, or 4, wherein: the end, far away from the ball socket end cover (2), of the spring sleeve (5) is provided with a plurality of water drainage grooves (52), the water drainage grooves (52) are sequentially distributed at intervals around the circumference of the spring sleeve (5), a gap exists between the limiting flange (51) and the second connecting shaft (62), and the water drainage grooves (52) are communicated with the inside and the outside of the spring sleeve (5) through the gap; the ball socket end cover (2) is connected with an automobile tail door, and the ball socket nut (6) is connected with an automobile tail box.

7. The automotive power tailgate balance bar of claim 6, wherein: and a limiting block (53) is formed between every two adjacent drainage grooves (52), and the limiting blocks (53) are positioned at the periphery of the ball socket nut (6) and coaxially limit the ball socket nut (6).

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