Damping screw, damping structure and automobile

Abstract

The utility model discloses a shock-absorbing screw, shock-absorbing structure and automobile, the shock-absorbing screw comprises: a screw body, the screw body comprises a head part, a neck part, a thread part and a shock-absorbing ring which are connected in sequence, the shock-absorbing ring is sleeved on the neck part, the periphery of the shock-absorbing ring is provided with a mounting groove, the shock-absorbing screw isolates and suppresses the transmission of shock through the shock-absorbing ring, and the shock-absorbing ring is provided with a mounting groove. And therefore, excitation and generation of related noise of the whole vehicle are restrained, generation of noise is reduced, and meanwhile the neck design also ensures the stability of rigid contact.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile noise reduction, and more specifically relates to a shock-absorbing screw, a shock-absorbing structure and an automobile. Background Art

[0002] Various components are installed on the vehicle. For some functional components, they do not need to bear too much force themselves (rigid connection strength is not required), but these components have motor parts, and their own motors will have noise excitation when working, such as ESC modules.

[0003] If the ESC module is rigidly connected to the main body component to which it is fixed, when the motor rotates during operation, it is easy for the rotation excitation of the motor to induce vibration of the main body component, thereby causing noise problems that are unacceptable to the driver. Utility Model Content

[0004] The purpose of the utility model is to provide a shock-absorbing screw to address the deficiencies in the prior art, so as to solve the problem that the existing ESC module is rigidly connected to the main body component to which it is fixed, and when the motor rotates during operation, it is easy for the rotation excitation of the motor to induce vibration of the main body component, thereby causing noise problems that are unacceptable to the driver.

[0005] In order to achieve the above object, the utility model provides a shock-absorbing screw, comprising:

[0006] A nail body, the nail body comprising a head, a neck and a threaded portion connected in sequence;

[0007] A shock absorbing ring is sleeved on the neck, and a mounting groove is arranged on the outer periphery of the shock absorbing ring.

[0008] Optionally, an axial guide rail is provided on the outer periphery of the neck, and a guide groove matching with the guide rail is provided on the inner periphery of the shock-absorbing ring.

[0009] Optionally, the shock absorbing ring comprises two oppositely arranged collars, and the collars comprise:

[0010] A first ring body and a second ring body, wherein the first ring body and the second ring body have the same inner diameter, and the outer diameter of the first ring body is greater than the outer diameter of the second ring body.

[0011] Optionally, a toothed compression platform is provided at an end of the second ring body away from one end of the first ring body.

[0012] Optionally, the compression stages of two of the collars engage with each other.

[0013] Optionally, the mounting groove is arranged on the neck.

[0014] The utility model also provides a shock absorbing structure, comprising:

[0015] A mounting plate, one end of which is provided with a mounting hole;

[0016] In the above-mentioned shock-absorbing screw, the inner periphery of the mounting hole is connected to the outer periphery of the mounting groove, and the threaded portion of the nail body passes through the two shock-absorbing rings in sequence and then is connected to the vehicle body.

[0017] Optionally, the threaded portion of the nail body passes through the two rings and the vehicle body in sequence and then is exposed, and a nut is provided at the exposed end of the threaded portion.

[0018] Optionally, the two collars are respectively inserted into two ends of the mounting hole of the mounting plate.

[0019] The utility model also provides a car, comprising the above-mentioned shock absorbing structure, wherein the other end of the mounting plate is provided with an ESC module.

[0020] The utility model provides a shock-absorbing screw, which has the following beneficial effects:

[0021] 1. The shock-absorbing screw is isolated and inhibits the transmission of vibration through the shock-absorbing ring, thereby inhibiting the excitation and occurrence of vehicle-related noise, reducing the occurrence of noise, and the neck design also ensures the stability of rigid contact.

[0022] 2. The sleeve rings of the shock-absorbing screw ensure full contact between the sleeve rings through the compression platform, while reducing transitional extrusion deformation between the sleeve rings.

[0023] 3. The shock-absorbing screw prevents the shock-absorbing ring from twisting and deformation through the cooperation of the guide rail and the guide groove, and avoids the friction noise caused by the rotation of the shock-absorbing ring.

[0024] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0026] Figure 1 A schematic structural diagram of a shock-absorbing screw according to an embodiment of the utility model is shown.

[0027] Figure 2 A schematic structural diagram of a nail body of a shock-absorbing screw according to an embodiment of the utility model is shown.

[0028] Figure 3 A structural schematic diagram of a shock absorbing structure according to an embodiment of the utility model is shown.

[0029] Figure 4 An exploded view of a shock absorbing structure according to an embodiment of the utility model is shown.

[0030] Description of reference numerals:

[0031] 1. Head; 2. Neck; 3. Threaded portion; 4. Guide rail; 5. First ring body; 6. Second ring body; 7. Compression table; 8. Mounting plate; 9. Car body. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention will be described in more detail below. Although the preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0033] like Figure 1-2 As shown, a shock absorbing screw comprises:

[0034] A nail body, the nail body comprising a head 1, a neck 2 and a threaded portion 3 connected in sequence;

[0035] The shock absorbing ring is sleeved on the neck 2, and a mounting groove is arranged on the outer periphery of the shock absorbing ring.

[0036] Specifically, the transmission of vibration is isolated by the shock-absorbing ring sleeved on the neck 2, thereby ensuring the stability of the screw connection and preventing the screw from loosening due to vibration of the fixed workpiece or noise caused by vibration transmission.

[0037] Furthermore, the diameter of the neck portion 2 is greater than the diameter of the threaded portion 3 , and the neck portion 2 can replace the head portion 1 and cooperate with the nut for extrusion and fixation.

[0038] In this embodiment, an axial guide rail 4 is provided on the outer periphery of the neck 2 , and a guide groove matching with the guide rail 4 is provided on the inner periphery of the shock absorbing ring.

[0039] Specifically, the shock-absorbing ring is a rubber shock-absorbing ring, and the cooperation between the guide rail 4 and the guide groove prevents the shock-absorbing ring from rotating and moving, thereby avoiding the friction sound of the rubber stress release caused by the torsional deformation of the rubber shock-absorbing ring during installation.

[0040] In this embodiment, the shock absorbing ring includes two relatively arranged collars, and the collars include:

[0041] The first ring body 5 and the second ring body 6 have the same inner diameter, and the outer diameter of the first ring body 5 is greater than the outer diameter of the second ring body 6 .

[0042] Specifically, the collar has a stepped structure, with two second ring bodies 6 constituting the bottom of the mounting groove, and two first ring bodies 5 constituting the groove wall of the mounting groove. The two collars facilitate the installation of the mounting plate 8.

[0043] In this embodiment, a toothed compression platform 7 is provided at an end of the second ring body 6 away from the first ring body 5 .

[0044] Specifically, the contact area of ​​the two rings is increased by the wave structure of the compression platform 7, so as to avoid stress concentration when the two rings are squeezed against each other, thereby ensuring the shock absorption effect.

[0045] In this embodiment, the compression stages 7 of the two collars mesh with each other.

[0046] In this embodiment, the mounting groove is arranged on the neck 2 .

[0047] Specifically, the mounting groove is ensured to be on the neck 2, thereby ensuring the support force for the mounting plate 8, and preventing the mounting plate 8 from moving to the threaded portion 3 to be suspended in the air and increasing vibration.

[0048] like Figure 3-4 As shown, the utility model also provides a shock absorbing structure, comprising:

[0049] A mounting plate 8, one end of which is provided with a mounting hole;

[0050] The inner periphery of the mounting hole of the above-mentioned shock-absorbing screw is connected to the outer periphery of the mounting groove, and the threaded portion 3 of the nail body passes through two shock-absorbing rings in sequence and is connected to the vehicle body 9.

[0051] Specifically, the vehicle body 9 and the mounting plate 8 are connected and fixed by shock-absorbing screws, and the shock-absorbing ring prevents the mounting plate 8 from being directly connected to the nail body and the vehicle body 9. The functional module is fixed by the mounting plate 8. When the functional module vibrates, the shock-absorbing ring absorbs the vibration and isolates the transmission of the vibration, thereby reducing vibration noise.

[0052] In this embodiment, the threaded portion 3 of the nail body passes through two collars and the vehicle body 9 in sequence and then is exposed. A nut is provided at the exposed end of the threaded portion 3 .

[0053] Specifically, the threaded portion 3 is tightened and fixed with a nut.

[0054] In this embodiment, two collars are respectively inserted into two ends of the mounting hole of the mounting plate 8 .

[0055] The utility model also provides a car, comprising the above-mentioned shock absorbing structure, wherein the other end of the mounting plate 8 is provided with an ESC module.

[0056] When a shock-absorbing screw of the present embodiment is used, taking the use of a mounting plate for fixing an ESC module of a car as an example, the ESC module is fixed on the mounting plate 8, and a sleeve in the shock-absorbing ring is first installed on the neck 2 of the nail body, the nail body is inserted into the mounting hole from one side, and the other sleeve is sleeved on the nail body from the other side of the mounting hole. The guide rail 4 and the guide groove cooperate to ensure that the compression platforms 7 of the two sleeves are engaged, and then the nail body cooperates with the nut to fix the mounting plate 8 on the car body 9. When the ESC module vibrates, the shock-absorbing ring absorbs and isolates the transmission of vibration, thereby isolating the vibration excitation. At the same time, the neck 2 also ensures the reliability of the rigid connection.

[0057] The various embodiments of the utility model have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A shock-absorbing screw, characterized in that: include: A nail body, the nail body comprising a head, a neck and a threaded portion connected in sequence; A shock absorbing ring is sleeved on the neck, and a mounting groove is arranged on the outer periphery of the shock absorbing ring.

2. A shock-absorbing screw according to claim 1, characterized in that: An axial guide rail is arranged on the outer periphery of the neck, and a guide groove matched with the guide rail is arranged on the inner periphery of the damping ring.

3. A shock-absorbing screw according to claim 1, characterized in that: The shock absorbing ring comprises two relatively arranged collars, and the collars comprise: A first ring body and a second ring body, wherein the first ring body and the second ring body have the same inner diameter, and the outer diameter of the first ring body is greater than the outer diameter of the second ring body.

4. A shock-absorbing screw according to claim 3, characterized in that: A toothed compression platform is provided at an end of the second ring body away from one end of the first ring body.

5. A shock-absorbing screw according to claim 4, characterized in that: The compression stages of the two collars are meshed with each other.

6. The shock-absorbing screw according to claim 1, characterized in that: The mounting groove is arranged on the neck.

7. A shock absorbing structure, characterized in that: include: A mounting plate, one end of which is provided with a mounting hole; According to the shock-absorbing screw according to any one of claims 1 to 6, the inner periphery of the mounting hole is connected to the outer periphery of the mounting groove, and the threaded portion of the nail body passes through the two shock-absorbing rings in sequence and then is connected to the vehicle body.

8. A shock absorbing structure according to claim 7, characterized in that: The threaded portion of the nail body passes through the two collars and the vehicle body in sequence and then is exposed, and a nut is arranged at the exposed end of the threaded portion.

9. A shock absorbing structure according to claim 7, characterized in that: The two collars are respectively plugged into two ends of the mounting hole of the mounting plate.

10. An automobile, characterized in that: Comprising the shock absorbing structure according to any one of claims 7 to 9, an ESC module is arranged at the other end of the mounting plate.

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