Electric supporting rod structure for vehicle tail door

Abstract

The utility model discloses an electric stay bar structure for a vehicle tail door, which comprises a stay bar main body, a push rod and a drainage structure, the push rod is arranged on the stay bar main body, and the drainage structure is arranged at the joint of the push rod and the stay bar main body; the drainage structure comprises a sleeve, a water absorption sponge, an extrusion ring, a limiting ring and a spring, a drainage hole is formed in the sleeve, the supporting rod body is sleeved with the opening end of the sleeve, and the push rod penetrates out of the through hole; the water absorption sponge, the extrusion ring, the limiting ring and the spring are sequentially arranged in the sleeve and are arranged on the push rod in a sleeving mode. When the push rod is pushed outwards, the moving range of the water-absorbing sponge can be limited through the limiting effect of the sleeve, the situation that the water-absorbing sponge moves outwards along with the push rod is avoided, in addition, through the abutting effect of the extrusion ring and the push rod, the extrusion plate can be driven to extrude the water-absorbing sponge, water in the water-absorbing sponge is extruded out, and the water-absorbing sponge is prevented from moving outwards. And the water is discharged from the drainage hole, and the water absorption sponge does not need to be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric support rods, in particular to an electric support rod structure for a vehicle tailgate. Background Art

[0002] The electric strut is an auxiliary opening device for the tailgate of a car. It realizes automatic opening and closing of the tailgate through electric drive. The electric strut contains an electric drive device inside. By controlling the power supply, the push rod is pushed out or retracted from the strut body to drive the movement of the tailgate.

[0003] In the related art, in rainy or humid weather, the tailgate of the vehicle is frequently opened, and due to aging, wear or improper installation of the sealing ring, external water vapor will penetrate from the connection between the push rod and the support rod body, causing damage to internal electric components and internal environmental corrosion, rust and other problems, increasing the failure rate of the electric support rod. This can be avoided by providing a water-absorbing sponge at the connection between the push rod and the support rod body.

[0004] For example, an electric tailgate support rod mechanism for a vehicle with application number CN202222344016.7 has an abutment sleeve extending from the opening, and a moisture absorbing block is provided at the abutment sleeve. The moisture absorbing block abuts against the piston rod, and as the piston rod moves in and out, the moisture on the piston rod can be wiped clean to prevent water vapor from following the piston rod into the piston sleeve.

[0005] However, the above patent still has some problems in actual use. For example, since the abutment sleeve lacks an outer ring limiter and the desiccant block abuts against the piston rod, the desiccant block will be brought out when the piston rod is extended, so that the wiping effect on the piston rod cannot be achieved when the piston is retracted again. In addition, the desiccant block has a high water content after absorbing water many times, which affects the wiping of the piston rod during subsequent retraction. If the desiccant block is replaced by disassembly, the operation is more cumbersome. Summary of the invention

[0006] The utility model aims to solve one of the technical problems in the above-mentioned technology at least to a certain extent.

[0007] To achieve the above-mentioned purpose, the utility model proposes an electric support rod structure for a vehicle tailgate in the first aspect, comprising: a support rod body, a push rod and a drainage structure, wherein the push rod is arranged on the support rod body, and the drainage structure is arranged at the connection between the push rod and the support rod body; the drainage structure comprises a sleeve, a water-absorbing sponge, an extrusion ring, a limit ring and a spring, wherein one end of the sleeve is open, and the other end is provided with a through hole, and a connected drainage hole is provided on the outer wall of the sleeve, and the open end of the sleeve is sleeved on the support rod body, and the push rod passes through the through hole; the water-absorbing sponge, the extrusion ring, the limit ring and the spring are sequentially arranged in the sleeve and sleeved on the push rod respectively; the inner ring of the water-absorbing sponge abuts against the push rod; the outer ring of the extrusion ring abuts against the inner wall of the sleeve, and the inner ring abuts against the push rod; the limit ring is fixedly arranged on the inner wall of the sleeve; one end of the spring is connected to the extrusion ring, and the other end is connected to the support rod body.

[0008] In addition, the electric support rod structure for the vehicle tailgate proposed in the utility model may also have the following additional technical features:

[0009] As a further description of the above technical solution: the sleeve is connected to the support rod body through a locking bolt.

[0010] As a further description of the above technical solution: the inner wall of the sleeve and the outer wall of the support rod body are respectively provided with sealing grooves that match each other, and the sealing rings are arranged in the two opposite sealing grooves.

[0011] As a further description of the above technical solution: the extrusion ring includes an outer ring and an inner ring, wherein the inner ring is arranged on the inner ring of the outer ring; the inner ring is a rubber ring, and the inner ring of the inner ring abuts against the outer wall of the push rod; wherein the spring is connected to the outer ring.

[0012] As a further description of the above technical solution: the inner ring size of the limiting ring is larger than the outer ring size of the spring.

[0013] As a further description of the above technical solution: the drainage hole is opened on a side of the sleeve close to the through hole, and the aperture of the drainage hole gradually shrinks outward along the inner wall of the sleeve.

[0014] According to the electric support rod structure for the tailgate of a vehicle of the utility model, the moving range of the water-absorbing sponge can be limited by the limiting effect of the sleeve to prevent the water-absorbing sponge from following the push rod outward. In addition, when the push rod is extended, the abutment of the extrusion ring and the push rod can drive the extrusion plate to squeeze the water-absorbing sponge, so that the water in the water-absorbing sponge is squeezed out and discharged from the drainage hole without replacing the water-absorbing sponge.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of an electric support rod structure for a vehicle tailgate according to an embodiment of the utility model;

[0018] Figure 2 is an exploded schematic diagram of a drainage structure according to an embodiment of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a sleeve according to an embodiment of the utility model;

[0020] Figure 4 is a structural schematic diagram of a sleeve according to another embodiment of the utility model;

[0021] Figure 5 It is a structural schematic diagram of an extrusion ring according to an embodiment of the utility model;

[0022] Figure 6 It is a schematic diagram of the internal structure of a drainage structure according to an embodiment of the utility model;

[0023] As shown in the figure:

[0024] 100. Support rod body; 200. Push rod; 300. Drainage structure; 310. Sleeve; 311. Through hole; 312. Drainage hole; 313. Locking bolt; 314. Sealing groove; 320. Water-absorbing sponge; 330. Extrusion ring; 331. Outer ring; 332. Inner ring; 340. Limiting ring; 350. Spring. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] The electric support rod structure for a vehicle tailgate according to an embodiment of the utility model will be described below with reference to the accompanying drawings.

[0027] like Figure 1As shown, the electric support rod structure for a vehicle tailgate according to an embodiment of the present invention may include a support rod body 100 , a push rod 200 and a drainage structure 300 .

[0028] The push rod 200 is disposed on the support rod body 100 , and the drainage structure 300 is disposed at the connection between the push rod 200 and the support rod body 100 .

[0029] like Figure 2 and Figure 6 As shown, the drainage structure 300 includes a sleeve 310 , a water-absorbing sponge 320 , a squeezing ring 330 , a limiting ring 340 and a spring 350 .

[0030] Among them, Figure 3 and Figure 4 As shown, one end of the sleeve 310 is open, and the other end is provided with a through hole 311 . A connected drainage hole 312 is provided on the outer wall of the sleeve 310 . The open end of the sleeve 310 is sleeved on the support rod body 100 , and the push rod 200 passes through the through hole 311 .

[0031] It should be noted that the inner cavity of the sleeve 310 fits with the support rod body 100 , that is, the inner wall of the sleeve 310 matches the outer wall of the end of the support rod body 100 .

[0032] The water-absorbing sponge 320 , the squeezing ring 330 , the limiting ring 340 and the spring 350 are sequentially arranged in the sleeve 310 and are respectively sleeved on the push rod 200 .

[0033] The inner circle of the water-absorbing sponge 320 abuts against the push rod 200 , and when the push rod 200 is retracted, the water vapor on the push rod 200 is scraped off and absorbed by the water-absorbing sponge 320 .

[0034] The outer ring of the extrusion ring 330 abuts against the inner wall of the sleeve 310 , and the inner ring abuts against the push rod 200 . The limiting ring 340 is fixedly arranged on the inner wall of the sleeve 310 . One end of the spring 350 is connected to the extrusion ring 330 , and the other end is connected to the support rod body 100 .

[0035] As a possible situation, the spring 350 is in an extruded state in the sleeve 310. When the push rod 200 is retracted, the extrusion ring 330 is subjected to the friction force to move along with the push rod 200, and pushes the spring 350 to continue to be squeezed, so that the water-absorbing sponge 320 expands and expands until the extrusion ring 330 contacts the limiting ring 340. Then the extrusion ring 330 is limited, and the push rod 200 continues to be retracted.

[0036] When the push rod 200 is pushed outward, the squeezing ring 330 moves with the push rod 200 and is simultaneously reset by the spring 350 , pressing the squeezing ring 330 against the water-absorbing sponge 320 , so that the water in the water-absorbing sponge 320 is squeezed out through the drainage hole 312 .

[0037] Specifically, in rainy weather, when the tailgate of the vehicle is frequently opened and closed, water vapor may condense or splash onto the surface of the push rod 200 . When the user closes the tailgate of the vehicle, the support rod body 100 is driven by the electric drive device to retract the push rod 200 .

[0038] When the push rod 200 is retracted, the push rod 200 drives the extrusion ring 330 to move toward the support rod body 100 and contact the limiting ring 340 , and then the water-absorbing sponge 320 unfolds and scrapes off the water vapor on the push rod 200 to absorb water.

[0039] When opening again, the support rod body 100 is driven by the electric drive device to push the push rod 200 out.

[0040] When the push rod 200 is pushed out, the sponge is limited in the sleeve 310 because it is limited by the through-hole end of the sleeve 310. In addition, since the push rod 200 drives the extrusion ring 330 and is simultaneously reset by the spring 350, it can be pressed against the absorbent sponge 320 with a large extrusion force to discharge the water in the absorbent sponge 320 from the drainage hole 312. The process of absorbing and draining water is automatically performed when the tailgate of the vehicle is closed and opened, and there is no need for the user to replace the absorbent sponge 320, which is simpler.

[0041] In one embodiment of the present invention, Figure 6 As shown, the sleeve 310 is connected to the support rod body 100 via a locking bolt 313 .

[0042] It should be noted that a mounting hole is formed on the sleeve 310 , and a thread groove matching the mounting hole is formed on the outer wall of the support rod body 100 . The locking bolt 313 passes through the mounting hole and the thread groove in sequence to fix the sleeve 310 on the support rod body 100 .

[0043] In addition, to further ensure the sealing of the connection between the sleeve 310 and the support rod body 100 , matching sealing grooves 314 are respectively provided on the inner wall of the sleeve 310 and the outer wall of the support rod body 100 , and the sealing ring 400 is disposed in two opposite sealing grooves 314 .

[0044] In one embodiment of the present invention, Figure 5 As shown, the extrusion ring 330 includes an outer ring 331 and an inner ring 332 .

[0045] The inner ring 332 is disposed on the inner ring of the outer ring 331 , is a rubber ring, and the inner ring of the inner ring 332 abuts against the outer wall of the push rod 200 , wherein the spring 350 is connected to the outer ring 331 .

[0046] It should be noted that the inner ring 332 is a rubber ring, which has the function of extrusion deformation. When the inner ring 332 abuts against the push rod 200, there is a large friction force, and the push rod 200 can effectively drive the movement of the extrusion ring 330.

[0047] In one embodiment of the present invention, the inner ring size of the limiting ring 340 is larger than the outer ring size of the spring 350 , that is, the limiting ring 340 is sleeved outside the spring 350 .

[0048] In one embodiment of the present invention, the drainage hole 312 is provided on a side of the sleeve 310 close to the through hole 311 , and the diameter of the drainage hole 312 gradually shrinks outward along the inner wall of the sleeve 310 .

[0049] It should be noted that the special design of the drainage hole 312, that is, the outer diameter of the drainage hole 312 is smaller than the inner diameter, can reduce the external water vapor entering into the sleeve 310 through the drainage hole 312, and even if water vapor enters into the sleeve 310 from the drainage hole 312, since the drainage hole 312 is close to the water-absorbing sponge 320, the water-absorbing sponge 320 can absorb the external water vapor in time.

[0050] In addition, when the water-absorbing sponge 320 is drained, the water in the water-absorbing sponge 320 is more easily drained from the drain hole 312 .

[0051] In summary, according to the electric support rod structure for the tailgate of a vehicle according to the embodiment of the utility model, the movement range of the water-absorbing sponge 320 can be limited by the limiting effect of the sleeve 310, thereby preventing the water-absorbing sponge 320 from moving outward with the push rod 200. In addition, when the push rod 200 is extended, the abutment of the squeezing ring 330 with the push rod 200 can drive the squeezing ring 330 to squeeze the water-absorbing sponge 320, so that the water in the water-absorbing sponge 320 is squeezed out and discharged from the drainage hole 312, without the need to replace the water-absorbing sponge 320.

[0052] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0053] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0054] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An electric support rod structure for a vehicle tailgate, characterized in that: include: A support rod body (100), a push rod (200) and a drainage structure (300), wherein: The push rod (200) is arranged on the support rod body (100), and the drainage structure (300) is arranged at the connection between the push rod (200) and the support rod body (100); The drainage structure (300) comprises a sleeve (310), a water-absorbing sponge (320), a squeezing ring (330), a limiting ring (340) and a spring (350), wherein: One end of the sleeve (310) is open, and the other end is provided with a through hole (311). A communicating drainage hole (312) is provided on the outer wall of the sleeve (310); the open end of the sleeve (310) is sleeved on the support rod body (100); and the push rod (200) passes through the through hole (311); The water-absorbing sponge (320), the extrusion ring (330), the limiting ring (340) and the spring (350) are sequentially arranged in the sleeve (310) and are respectively sleeved on the push rod (200); The inner ring of the water-absorbing sponge (320) abuts against the push rod (200); The outer ring of the extrusion ring (330) abuts against the inner wall of the sleeve (310), and the inner ring abuts against the push rod (200); The limiting ring (340) is fixedly arranged on the inner wall of the sleeve (310); One end of the spring (350) is connected to the extrusion ring (330), and the other end is connected to the support rod body (100).

2. The electric support rod structure for a vehicle tailgate according to claim 1, characterized in that: The sleeve (310) is connected to the support rod body (100) via a locking bolt (313).

3. The electric support rod structure for a vehicle tailgate according to claim 1, characterized in that: Mutually matching sealing grooves (314) are respectively arranged on the inner wall of the sleeve (310) and the outer wall of the support rod body (100), and the sealing ring (400) is arranged in two opposite sealing grooves (314).

4. The electric support rod structure for a vehicle tailgate according to claim 1, characterized in that: The extrusion ring (330) includes an outer ring (331) and an inner ring (332), wherein: The inner ring (332) is arranged on the inner ring of the outer ring (331); The inner ring (332) is a rubber ring, and the inner ring of the inner ring (332) abuts against the outer wall of the push rod (200); Wherein, the spring (350) is connected to the outer ring (331).

5. The electric support rod structure for a vehicle tailgate according to claim 1, characterized in that: The inner ring size of the limiting ring (340) is larger than the outer ring size of the spring (350).

6. The electric support rod structure for a vehicle tailgate according to claim 1, characterized in that: The drainage hole (312) is provided on a side of the sleeve (310) close to the through hole (311), and the diameter of the drainage hole (312) gradually shrinks outward along the inner wall of the sleeve (310).

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