Drum type drive-by-wire parking actuator with improved dustproof inhaul cable structure

Abstract

The utility model discloses a drum-type drive-by-wire parking actuator with an improved dustproof inhaul cable structure, which is characterized by comprising an inhaul cable moving relative to a lead screw assembly of the drum-type drive-by-wire parking actuator. A dust cover structure is fixed to the periphery of the space where the inhaul cable moves relative to a lead screw assembly of the drum type wire control parking actuator. A fixing structure is arranged at the tail end of the dust cover structure; the fixing structure comprises a wedge-shaped section, wherein the periphery of the wedge-shaped section is matched with the inner wall of the dust cover structure. The limiting section is connected with the wedge-shaped section, and the fixing section is connected with the limiting section and attached to the peripheral face of the inhaul cable. According to the drum-type drive-by-wire parking actuator, the drum-type drive-by-wire parking actuator is partially improved, the service life of the dust cover is prolonged, the sealing performance between the dust cover and the inhaul cable is improved, the service life of the whole equipment is prolonged, and the performance of the whole equipment is improved.

Description

Technical Field

[0001] The utility model relates to the manufacturing field of a drum-type wire-controlled parking actuator, in particular to a drum-type wire-controlled parking actuator with an improved dustproof cable structure. Background Art

[0002] In the working process of the existing equipment, the cable moves up and down, and the inner hole of the dust cover and the cable move relative to each other, generating friction; the drum-type wire-controlled parking actuator is installed near the wheels of the automobile chassis. The actual use environment is harsh, and mud and sand are easily attached to the cable;

[0003] After long-term use, the drum-type wire-controlled parking actuator has the following risks: the mud and sand attached to the cable wears out the inner hole of the dust cover, causing the dust cover and the cable to be unable to seal, and the product will be at risk of water ingress and failure. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a drum-type wire-controlled parking actuator with an improved dustproof cable structure.

[0005] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0006] A drum-type wire-controlled parking actuator with an improved dustproof cable structure, comprising:

[0007] A cable that moves relative to the lead screw assembly of the drum-type wire-controlled parking actuator, wherein a dust cover structure is fixed to the periphery of the relative movement space between the cable and the lead screw assembly of the drum-type wire-controlled parking actuator;

[0008] A fixing structure is provided at the end of the dust cover structure;

[0009] The fixing structure includes a wedge-shaped section whose outer periphery is adapted to the inner wall of the dust cover structure;

[0010] A limiting section connected to the wedge-shaped section and a fixing section connected to the limiting section and in contact with the outer peripheral surface of the cable.

[0011] In a preferred embodiment of the present invention, the wedge-shaped segment includes a step surface adapted to the inner wall of the dust cover structure.

[0012] In a preferred embodiment of the present utility model, the limiting section includes a limiting boss, and a first chamfered structure is provided on the lower side of the limiting boss.

[0013] In a preferred embodiment of the present invention, a second chamfered structure is provided on the lower side of the fixing section.

[0014] In a preferred embodiment of the present invention, the fixing structure is riveted to the cable.

[0015] In a preferred embodiment of the present utility model, the dust cover structure is a foldable dust cover, and any folding surface of the foldable dust cover is provided with a groove with an arc angle.

[0016] In a preferred embodiment of the present invention, the groove with arc angle is a semicircular groove.

[0017] In a preferred embodiment of the present utility model, the upper end of the screw rod assembly is fixed with a limit block by riveting.

[0018] The beneficial effects of the utility model are:

[0019] The utility model increases the service life of the dust cover and the sealing performance between the dust cover and the cable by partially improving the drum-type wire-controlled parking actuator, thereby improving the service life and performance of the overall equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The structure of the prior art is shown in FIG. Figure 1 .

[0021] Figure 2 The structure of the utility model is shown in FIG. Figure 1 .

[0022] Figure 3 The structure of the prior art is shown in FIG. Figure 2 .

[0023] Figure 4 The structure of the utility model is shown in FIG. Figure 2 .

[0024] Figure 5 The structure of the prior art is shown in FIG. Figure 3 .

[0025] Figure 6 The structure of the utility model is shown in FIG. Figure 3 .

[0026] Figure 7 It is a partial structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0028] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] like Figure 1 As shown, during the operation of the existing equipment, the cable 1 moves up and down, and the inner hole of the dust cover 2 moves relative to the cable 1, generating friction; the drum-type wire-controlled parking actuator is installed near the wheels of the automobile chassis, and the actual use environment is harsh, and mud and sand are easily attached to the cable;

[0030] After long-term use, the drum-type wire-controlled parking actuator has the following risks: the mud and sand attached to the cable 1 wears out the inner hole of the dust cover 2, causing the dust cover 2 and the cable 1 to be unable to seal, and the product will have the risk of water ingress and failure.

[0031] In addition, if Figure 3 As shown, during operation, the dust cover 2 performs a compression and release cycle. During the compression process, the folding performance of the dust cover 2 is poor. After long-term use, there is a risk of rupture in the folded and deformed area of ​​the dust cover 2, causing the dust cover 2 to fail to seal and the product to have a risk of water ingress and failure.

[0032] exist Figure 5 On the screw structure 3, the existing product uses a nut 4 to lock the limit block 5. During the assembly process, the internal thread of the nut 4 needs to be coated with thread anti-loosening glue, and the assembly glue coating process is easy to pollute the environment.

[0033] In addition, there are many parts and the assembly process is complicated. The tightening torque of nut 4 needs to be controlled during the assembly process. If the torque of nut 4 is unqualified, it is not easy to find, and the product has the potential risk of nut 4 loosening and failure.

[0034] In summary, the utility model provides a drum-type wire-controlled parking actuator with an improved dustproof cable structure, including a cable 200 that moves relative to the screw assembly 100 of the drum-type wire-controlled parking actuator, and a dust cover structure 300 is fixed to the outer periphery of the space for relative movement between the cable 200 and the screw assembly 100 of the drum-type wire-controlled parking actuator.

[0035] A fixing structure 400 is disposed at the end of the dust cover structure 300 , and the fixing structure 400 is riveted to the cable 200 .

[0036] The fixing structure 400 includes a wedge-shaped segment 410 whose outer periphery is adapted to the inner wall of the dust cover structure 300 . The wedge-shaped segment 410 includes a step surface 411 adapted to the inner wall of the dust cover structure 300 .

[0037] A limiting section 420 connected to the wedge-shaped section 410 , and a fixing section 430 connected to the limiting section 420 and in contact with the outer circumference of the cable 200 .

[0038] The limiting section 420 includes a limiting boss 421 . A first chamfered structure 422 is provided at the lower side of the limiting boss 421 . The first chamfered structure 422 can prevent sediment from gathering.

[0039] A second chamfered structure 431 is provided at the lower side of the fixing section 430 , and the second chamfered structure 431 can prevent sediment from gathering.

[0040] A fixing structure 400 is added between the dust cover structure 300 and the cable 200 . The fixing structure 400 is riveted to the cable 200 . After riveting, a sealing fit is formed between the cable 200 and the fixing structure 400 . The dust cover structure 300 and the fixing structure 400 are sealed together.

[0041] During operation, no friction occurs between the cable 200 and the dust cover structure 300, and they are always kept sealed, so that external dust, sand and liquid cannot enter the interior of the product, thereby improving the product life and reliability.

[0042] The dust cover structure 300 is a foldable dust cover, and any folding surface of the foldable dust cover is provided with a groove 310 with an arc angle. Furthermore, the groove with an arc angle is a semicircular groove 311.

[0043] After the folding deformation area of ​​the dust cover structure 300 is provided with an arc-angled groove 310, the dust cover has good folding performance and is easy to compress and fold. The folding deformation area will not break, thereby improving the product life and reliability.

[0044] The upper end of the screw assembly 100 is fixed with the limit block 500 by riveting, and the nut locking limit block is eliminated. The limit block is fixed by riveting, which is simple, fast, and easy to operate, and solves the risk of product failure caused by loose nuts, and the product reliability is higher. The glue coating process at the inner thread of the nut is eliminated, which is more environmentally friendly.

Claims

1. A drum-type wire-controlled parking actuator with an improved dustproof cable structure, characterized in that: include: A cable that moves relative to the lead screw assembly of the drum-type wire-controlled parking actuator, wherein a dust cover structure is fixed to the periphery of the relative movement space between the cable and the lead screw assembly of the drum-type wire-controlled parking actuator; A fixing structure is provided at the end of the dust cover structure; The fixing structure includes a wedge-shaped section whose outer periphery is adapted to the inner wall of the dust cover structure; A limiting section connected to the wedge-shaped section and a fixing section connected to the limiting section and in contact with the outer peripheral surface of the cable.

2. A drum-type wire-controlled parking actuator with an improved dustproof cable structure as claimed in claim 1, characterized in that: The wedge-shaped segment comprises a step surface adapted to the inner wall of the dust cover structure.

3. A drum-type parking actuator with an improved dustproof cable structure as claimed in claim 1, characterized in that: The limiting section includes a limiting boss, and a first chamfer structure is arranged on the lower side of the limiting boss.

4. A drum-type parking actuator with an improved dustproof cable structure as claimed in claim 1, characterized in that: A second chamfered structure is provided on the lower side of the fixing section.

5. A drum-type wire-controlled parking actuator with an improved dustproof cable structure as claimed in claim 1, characterized in that: The fixing structure is riveted to the cable.

6. A drum-type parking actuator with an improved dustproof cable structure as claimed in claim 1, characterized in that: The dust cover structure is a foldable dust cover, and any folding surface of the foldable dust cover is provided with a groove with an arc angle.

7. A drum-type wire-controlled parking actuator with an improved dustproof cable structure as claimed in claim 6, characterized in that: The groove with arc angle is a semicircular groove.

8. A drum-type parking actuator with an improved dustproof cable structure as claimed in claim 1, characterized in that: The upper end of the screw rod assembly is fixed with a limit block by means of riveting.

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