CN217374660U - Anti-rotation gasket structure and connecting assembly - Google Patents

Abstract

The utility model relates to a prevent changeing gasket structure and coupling assembling, prevent changeing the gasket structure and include gasket subassembly (100) and fixed barrel casing (3), gasket subassembly (100) are provided with through-hole (101), fixed barrel casing (3) with gasket subassembly (100) fixed connection and the partial outer peripheral face of fixed barrel casing (3) is provided with prevents changeing the structure, wherein, through-hole (101) with fixed barrel casing (3) coaxial setting. Through above-mentioned technical scheme, the rotation-proof gasket structure that this disclosure provided can guarantee the transmission of axial force, reduces the consumption of axial force.

Description

Anti-rotation gasket structure and connecting assembly

Technical Field

The disclosure relates to the technical field of fasteners, in particular to an anti-rotation gasket structure and a connecting assembly.

Background

In a vehicle, a subframe is a bracket for supporting front and rear axles and suspensions, and is generally connected to a vehicle body through four to six mounting points, so that not only can the connection rigidity of a suspension system be ensured, but also the transmission of road vibration can be reduced. The mounting structure of the auxiliary frame and the vehicle body is an important factor influencing the connection performance of the vehicle body and the auxiliary frame.

In the related technology, a bolt sequentially penetrates through an anti-rotation gasket structure and a mounting bushing fixed on an auxiliary frame to be connected with a vehicle body, so that the auxiliary frame is connected with the vehicle body. However, in order to ensure the connection reliability of the subframe and the vehicle body, the screwing force of the bolt is often relatively large during assembly, so that in the bolt screwing process, relative motion can be generated between the mounting bushing and the anti-rotation gasket structure, and even the mounting bushing can rotate along with the anti-rotation gasket structure, so that the service life of the mounting bushing, the transmission of the axial force of the bolt, the NVH (Noise, Vibration, Harshness, Noise, Vibration and sound Vibration roughness) performance of the whole vehicle and the stability of the whole vehicle can be influenced, the possibility of bolt torque attenuation can be increased, and the possibility of abnormal sound of the connection part of the subframe and the vehicle body and even the falling of the bolt can be increased.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to provide an anti-rotation gasket structure that can ensure the transmission of axial force and reduce the consumption of axial force.

In order to achieve the above object, the present disclosure provides an anti-rotation gasket structure, which includes a gasket assembly and a fixing barrel sleeve, wherein the gasket assembly is provided with a through hole, the fixing barrel sleeve is fixedly connected to the gasket assembly, and an anti-rotation structure is provided on a part of an outer circumferential surface of the fixing barrel sleeve, and the through hole and the fixing barrel sleeve are coaxially arranged.

Optionally, the fixed sleeve comprises a second shaft section, the rotation-preventing structure comprises a first rotation-preventing part and a second rotation-preventing part which are matched with each other, the first rotation-preventing part is arranged on the second shaft section, and the second rotation-preventing part is arranged on the to-be-assembled part.

Optionally, the first rotation-preventing part is configured as an outer peripheral surface of the second shaft section, the second rotation-preventing part is configured as an inner surface of the to-be-assembled part, the outer peripheral surface and the inner surface are in interference fit, or one of the first rotation-preventing part and the second rotation-preventing part is configured as a clamping groove, the other of the first rotation-preventing part and the second rotation-preventing part is configured as a protrusion, and the clamping groove and the protrusion are in fit connection.

Optionally, the gasket assembly includes a second gasket, and the fixed sleeve is integrally formed with or fixedly connected to the second gasket.

Optionally, the second gasket is provided with the annular positioning groove, the annular positioning groove is located on the first surface of the second gasket, and the end of the fixed sleeve is matched and fixedly connected with the annular positioning groove.

Optionally, the gasket assembly further includes a first gasket, the first gasket is fixed to the second gasket and is provided with a first via hole, the second gasket is provided with a second via hole, the first via hole and the second via hole are coaxially arranged to form the through hole together, and the fixing barrel sleeve penetrates through the first via hole and is fixedly connected to the annular positioning groove.

Optionally, the fixed sleeve comprises a first shaft section coaxially arranged with and connected to a second shaft section of the fixed sleeve, an outer diameter of the first shaft section is larger than an outer diameter of the second shaft section, a supporting end face is formed on one side, facing the second shaft section, of the first shaft section, and the supporting end face supports the first gasket.

Optionally, the first shim includes a first plate-like portion, a second plate-like portion, and a first connecting portion, the first plate-like portion and the second plate-like portion are arranged at an interval in an axial direction of the anti-rotation shim structure, and the first plate-like portion and the second plate-like portion are connected by the first connecting portion therebetween; the second shim includes a first shim plate portion, a second shim plate portion, and a second connecting portion, the first shim plate portion and the second shim plate portion being arranged at an interval in an axial direction of the rotation preventing shim structure, and the first shim plate portion and the second shim plate portion being connected by the second connecting portion.

Optionally, the first via hole is formed in the first plate-shaped portion, and the first plate-shaped portion is provided with a second end surface in a direction toward the second gasket, and the second end surface is used for being attached to the support end surface of the first gasket.

Optionally, a partial region of the second shim plate part protrudes toward the second plate-like part to form a plurality of protrusions which are arranged evenly at intervals in the circumferential direction of the second shim plate part, the protrusions being fixedly connected with the second plate-like part.

Optionally, the anti-rotation gasket structure further includes a reinforcing plate, and the reinforcing plate is sleeved on the fixed cylinder sleeve and is respectively and fixedly connected to the fixed cylinder sleeve and the second gasket.

On the basis of the above scheme, this disclosure still provides a coupling assembling, including the fastener, coupling assembling includes foretell prevent changeing the gasket structure, the fastener with the through-hole and fixed barrel casing cooperatees, wherein, the flange face of fastener is laminated with the second surface of second gasket mutually.

Through above-mentioned technical scheme, in the anti-rotation gasket structure that this disclosure provided, the setting of preventing rotating-structure on the fixed cylinder cover can prevent fixed cylinder cover and treat to take place relative rotation between the assembly piece with this anti-rotation gasket structure matched with, wherein, fixed cylinder cover fixed connection is in the gasket subassembly, promptly, can prevent the gasket subassembly and treat to take place relative rotation between the assembly piece. The gasket component can be provided with a through hole, and the through hole and the fixed barrel sleeve are coaxially arranged, wherein the through hole on the gasket can be adaptively designed according to different application scenes, so that the through hole is adaptive to the corresponding connecting piece, for example, the through hole of the gasket component can be matched with a fastener, specifically, the fastener can sequentially pass through the through hole of the gasket component and the fixed barrel sleeve, when the connecting piece is used, the gasket component can be prevented from rotating relative to a to-be-assembled piece through an anti-rotating structure, and thus, the fastener can be ensured not to have great loss due to the axial force transmitted to the fixed barrel sleeve through the gasket component, and the reliability of the torque of the fastener is favorably improved. Therefore, the anti-rotation gasket structure provided by the disclosure can ensure the transmission of axial force and reduce the consumption of the axial force.

Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure, but do not constitute a limitation of the disclosure. In the drawings:

FIG. 1 is a schematic structural view of an anti-rotation shim structure provided according to a first embodiment of the present disclosure;

FIG. 2 is an exploded view of an anti-rotation shim structure provided in accordance with a first embodiment of the present disclosure;

FIG. 3 is a cross-sectional view of an anti-rotation shim structure provided in accordance with a first embodiment of the present disclosure;

FIG. 4 is a cross-sectional view of an anti-rotation shim structure provided in accordance with a second embodiment of the present disclosure;

fig. 5 is a cross-sectional view of a connection assembly provided in accordance with an embodiment of the present disclosure, wherein a subframe is shown.

Description of the reference numerals

100-a gasket assembly; 101-a through hole; 1-a first gasket; 11-a first via; 12-a first end face; 13-a second end face; 2-a second gasket; 21-a second via; 22-annular positioning groove; 23-a first surface; 24-a second surface; 25-auxiliary positioning holes; 3-fixing the cylinder sleeve; 31-a first shaft section; 311-a support end face; 32-a second shaft section; 321-outer peripheral surface; 33-a third via; 4-a reinforcing plate; 41-a fourth via; 42-an opening; 10-a first plate-like portion; 20-a second plate-like portion; 30-a first connecting portion; 40-a first pad portion; 50-a second pad portion; 501-a convex part; 60-a second connecting portion;

200-mounting a bushing; 201-end face; 202-an inner surface;

300-an auxiliary frame;

400-a fastener; 401-flange face.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, the use of directional terms such as "inner" and "outer" in the absence of a contrary indication means "inner" and "outer" with respect to the profile of the corresponding component itself. In addition, the ordinal terms "first," "second," etc., used in this disclosure are to distinguish one element from another and are not necessarily order or importance. Furthermore, in the following description, when referring to the drawings, like reference numbers in different drawings denote like elements. It will be appreciated by persons skilled in the art that the foregoing directional terms, ordinal terms, etc. are defined for convenience of description only and are not intended to limit the present disclosure.

According to a specific embodiment of the present disclosure, an anti-rotation spacer structure is provided, and fig. 1 to 5 show an example of the anti-rotation spacer structure. As shown in fig. 1 to 5, the anti-rotation gasket structure may include a gasket assembly 100 and a fixing sleeve 3, wherein the gasket assembly 100 is provided with a through hole 101, the fixing sleeve 3 is fixedly connected to the gasket assembly 100, and part of the outer circumferential surface of the fixing sleeve 3 is provided with an anti-rotation structure, and the through hole 101 and the fixing sleeve 3 are coaxially arranged.

Through above-mentioned technical scheme, in the anti-rotation gasket structure that this disclosure provided, the setting of anti-rotation structure on the fixed barrel casing 3 can prevent fixed barrel casing 3 and treat to take place relative rotation between the assembly piece with this anti-rotation gasket structure matched with, wherein, fixed barrel casing 3 fixed connection is in gasket subassembly 100, promptly, can prevent gasket subassembly 100 and treat to take place relative rotation between the assembly piece. The gasket assembly 100 may be provided with a through hole 101, and the through hole 101 and the fixing barrel 3 are coaxially disposed, wherein the through hole 101 of the gasket assembly 100 may be adaptively designed according to different application scenarios to be adapted to a corresponding connecting member, for example, the through hole 101 of the gasket assembly 100 may be matched with the fastener 400, specifically, the fastener 400 may sequentially pass through the through hole 101 of the gasket assembly 100 and the fixing barrel 3, and when in use, the gasket assembly 100 may be prevented from rotating relative to the assembly to be assembled by the rotation prevention structure, so that it may be ensured that the axial force of the fastener 400 transmitted to the fixing barrel 3 through the gasket assembly 100 has no great loss, thereby facilitating to improve the reliability of the torque of the fastener 400. Therefore, the anti-rotation gasket structure provided by the disclosure can ensure the transmission of axial force and reduce the consumption of the axial force.

It should be noted that the to-be-assembled member and the connecting member, which are coupled with the anti-rotation pad structure, can be adaptively designed according to different application scenarios, for example, as shown in fig. 5, the to-be-assembled member can be configured as a mounting bushing 200 fixed on the subframe 300, and the connecting member can be configured as a fastening member 400, specifically, the fastening member 400 sequentially passes through the pad member 100, the fixing sleeve 3 and is connected to an external element, such as a vehicle body (not shown), so as to connect the subframe 300 and the vehicle body. Wherein, the anti-rotation structure on the fixed barrel casing 3 can guarantee that when the fastener 400 is screwed down, there is not relative rotation between the fixed barrel casing 3 and the installation bush 200, namely, there is not relative rotation between the anti-rotation gasket structure and the installation bush 200, thereby playing the role of anti-rotation, and guaranteeing the transmission of the axial force provided by the fastener 400, reducing the consumption of the axial force, and improving the reliability of the torque of the fastener. Hereinafter, the present disclosure will be exemplarily described by taking this as an example.

In the embodiment of the present disclosure, the fixing sleeve 3 may be configured in any suitable manner, and alternatively, as shown in fig. 1 to 3, the fixing sleeve 3 may include a second shaft section 32, and the rotation preventing structure includes a first rotation preventing portion and a second rotation preventing portion that are matched, the first rotation preventing portion is disposed on the second shaft section 32, and the second rotation preventing portion is disposed on the assembly to be assembled. The first rotation prevention portion of the second shaft section 32 and the second rotation prevention portion of the member to be assembled are engaged with each other, so that the relative rotation between the fixed sleeve 3 and the member to be assembled can be prevented.

In the embodiment of the present disclosure, as shown in fig. 1 to 3, the fixing sleeve 3 may further include a first shaft section 31 disposed coaxially with and connected to the second shaft section 32, an outer diameter of the first shaft section 31 is larger than an outer diameter of the second shaft section 32, and a side of the first shaft section 31 facing the second shaft section 32 forms a support end surface 311, and the support end surface 311 supports the first gasket 1 described below. The support end surface 311 may be configured in various manners, for example, the support end surface 311 may be configured as an annular end surface, and the width of the annular end surface in the radial direction is 1.5mm to 2mm, so as to ensure that the first gasket 1 described below is connected with the second gasket 2 described below, for example, when welding, the second end surface 13 of the first gasket 1 may be attached to the support end surface 311 of the fixing sleeve 3, and the disclosure is not limited thereto.

In the embodiment of the present disclosure, referring to fig. 1 to 5, a chamfer may be further provided on the second shaft section 32 of the fixed sleeve 3 to play a guiding role when the first rotation-preventing part on the fixed sleeve 3 is matched with the second rotation-preventing part on the component to be assembled, and the wall thickness of the fixed sleeve 3 is determined according to the assembly gap, the pressing force and the material, and is generally 2mm to 4 mm. In other embodiments of the present disclosure, the fixing sleeve 3 may be configured in other manners, for example, the fixing sleeve 3 may include a first shaft section and a second shaft section which have equal outer diameters and are coaxially connected to each other, so as to be suitable for the case where the torque of the fastener 400 is small, so as to reduce the cost and weight of the anti-rotation spacer structure.

In particular embodiments of the present disclosure, the first and second anti-rotation portions may each be configured in any suitable manner to effect a connection therebetween. Alternatively, as shown in fig. 2 to 5, the first rotation-preventing part may be configured as an outer circumferential surface 321 of the second shaft segment 32, and the second rotation-preventing part may be configured as an inner surface 202 of the member to be assembled, with the outer circumferential surface 321 and the inner surface 202 being interference-fitted. That is, the outer peripheral surface 321 of the second shaft section 32 is in interference fit with the inner surface 202 of the member to be assembled, so that when the fastener 400 is tightened, no relative rotation between the fixed sleeve 3 and the member to be assembled is ensured, that is, no relative rotation between the anti-rotation washer structure and the member to be assembled is ensured. Wherein the outer diameter of the second shaft segment 32 is determined according to the inner diameter of the inner tube of the assembly member, i.e. the mounting bushing 200, so as to ensure the interference fit of the outer peripheral surface 321 and the inner surface 202.

Alternatively, one of the first rotation prevention part and the second rotation prevention part may be configured as a locking groove, and the other of the first rotation prevention part and the second rotation prevention part may be configured as a protrusion, and the locking groove and the protrusion are cooperatively connected. Prevent fixed barrel casing 3 and wait to take place relative rotation between the assembly piece through draw-in groove and bellied mutually supporting, prevent promptly that prevent to change the gasket structure and wait to take place relative rotation between the assembly piece. In other embodiments of the present disclosure, the first anti-rotation portion and the second anti-rotation portion may be configured in other manners, and the present disclosure is not limited thereto. Next, the present disclosure will exemplarily describe, taking the case where the first rotation preventing portion is configured as the outer peripheral surface 321 of the second shaft section 32, the second rotation preventing portion is configured as the inner surface 202 of the member to be assembled, and the outer peripheral surface 321 and the inner surface 202 are interference-fitted.

In the embodiment of the present disclosure, the gasket assembly 100 may be configured in any suitable manner, and optionally, as shown in fig. 1 to 5, the gasket assembly 100 may include a second gasket 2, and the fixing sleeve 3 and the second gasket 2 are integrally formed or fixedly connected to ensure that there is no relative rotation between the fixing sleeve 3 and the second gasket 2, so that after the first rotation preventing portion of the fixing sleeve 3 and the second rotation preventing portion of the member to be assembled are engaged with each other, the relative rotation between the second gasket 2 and the member to be assembled can be prevented.

In the embodiment of the present disclosure, referring to fig. 1 to 5, the second gasket 2 may be provided with an annular positioning groove 22, the annular positioning groove 22 is located on the first surface 23 of the second gasket 2, and the end of the fixed sleeve 3 is matched and fixedly connected with the annular positioning groove 22, so as to achieve the installation and positioning of the fixed sleeve 3. The size of the annular positioning groove 22 can be adaptively designed according to the wall thickness of the fixed barrel casing 3, for example, the depth of the annular positioning groove 22 is 1.5mm to 3mm, the radial width is larger than the wall thickness of the fixed barrel casing 3, for example, the radial width of the annular positioning groove 22 is about 0.2mm larger than the wall thickness of the fixed barrel casing 3, and the disclosure is not limited thereto.

In a specific embodiment of the present disclosure, referring to fig. 1 to 5, the gasket assembly 100 may further include a first gasket 1, the first gasket 1 is fixedly connected to the second gasket 2 and is provided with a first via hole 11, a second via hole 21 is formed on the second gasket 2, the first via hole 11 and the second via hole 21 are coaxially disposed to form a through hole 101 together, that is, the first via hole 11 and the second via hole 21 are both coaxially disposed with the fixed cylinder sleeve 3, wherein the fixed cylinder sleeve 3 passes through the first via hole 11 and is fixedly connected to the annular positioning groove 22, so as to ensure the accuracy of installation and positioning of the fixed cylinder sleeve 3. And first gasket 1 and second gasket 2 link firmly, after the first portion of preventing changeing of fixed barrel casing 3 and the second on waiting to assemble the piece of work of preventing changeing mutually, can prevent to take place relative rotation between gasket subassembly 100 and waiting to assemble the piece like this. In other embodiments of the present disclosure, gasket assembly 100 may have other configurations, and the present disclosure is not limited in any way.

In the embodiment of the present disclosure, the first and second shims 1 and 2, respectively, may be configured in any suitable manner, alternatively, as shown in fig. 1 to 5, the first shim 1 may include a first plate-like portion 10, a second plate-like portion 20, and a first connecting portion 30, the first and second plate- like portions 10 and 20 being arranged at intervals in the axial direction of the anti-rotation shim structure, and the first and second plate- like portions 10 and 20 being connected by the first connecting portion 30 therebetween. The second shim 2 may include a first shim plate portion 40, a second shim plate portion 50, and a second connecting portion 60, the first shim plate portion 40 and the second shim plate portion 50 being spaced apart in an axial direction of the anti-rotation shim structure, and the first shim plate portion 40 and the second shim plate portion 50 being connected by the second connecting portion 60 therebetween. In other embodiments of the present disclosure, the first gasket 1 and the second gasket 2 may also be configured in other manners, and the present disclosure is not limited thereto.

In the embodiment of the present disclosure, referring to fig. 1 to 3, a first through hole 11 is formed in the first plate-shaped portion 10 for passing the fixing sleeve 3, the first plate-shaped portion 10 is provided with a second end surface 13 in a direction toward the second gasket 2, and the second end surface 13 is attached to the supporting end surface 311 of the first gasket 1. The first plate-shaped part 10 is provided with a first end face 12 in the direction away from the second gasket 2, the first end face 12 is attached to the end face 201 of the mounting bush 200, and the first end face 12 and the second end face 13 are arranged in a manner that the first plate-shaped part 10 is not deformed when the fastener 400 is screwed, so that the loss of axial force is reduced. The first end face 12 and the second end face 13 need to ensure a certain flatness, so as to ensure contact areas between the end face 201 of the mounting sleeve 200 and the first end face 12 and between the support end face 311 of the fixing sleeve 3 and the second end face 13 after the second shaft section 32 of the fixing sleeve 3 is press-fitted with the inner pipe of the mounting sleeve 200, thereby ensuring that the mounting sleeve 200 is stressed uniformly when the fastener 400 is screwed down, and further reducing loss of axial force.

In the embodiment of the present disclosure, referring to fig. 1 to 5, the second through hole 21 is formed in the first pad plate portion 40, the first pad plate portion 40 is provided with a first surface 23 in a direction toward the first gasket 1, the annular positioning groove 22 is formed in the first surface 23, the first pad plate portion 40 is provided with a second surface 24 in a direction away from the first gasket 1, and the second surface 24 is attached to the flange surface 401 of the fastening member 400. When the fastener 400 is tightened, the flange surface 401 of the fastener 400 (for example, a bolt) has a certain contact area with the second surface of the second gasket 2, so that the second gasket 2 is not deformed particularly greatly, and therefore, the fastener 400 does not have a great loss of axial force when being transmitted to the fixed sleeve 3 through the second gasket 2. In addition, the second surface 24 needs to ensure a certain flatness to ensure a contact area between the second surface 24 and the flange surface 401, so that the second surface 24 is uniformly stressed when the fastener 400 is tightened, and further, the anti-rotation gasket structure uniformly transmits the axial force provided by the fastener 400 to the end surface 201 of the mounting bushing 200 to further reduce the loss of the axial force.

In the embodiment of the present disclosure, as shown with reference to fig. 3 and 5, a partial region of the second shim plate portion 50 is protruded toward the second plate-like portion 20 to form a plurality of protrusions 501, the plurality of protrusions 501 are uniformly arranged along the circumferential direction of the second shim plate portion 50 at intervals, and the protrusions 501 are fixedly connected with the second plate-like portion 20 to achieve the fixed connection between the first gasket 1 and the second gasket 2. The connection between the protruding portion 501 and the second plate portion 20 may be various, such as welding, and the second pad portion 50 of the second gasket 2 may further be provided with an auxiliary positioning hole 25 to perform welding auxiliary positioning and weight reduction. The disclosure is not limited in this regard.

In a specific embodiment of the present disclosure, referring to fig. 1 to 3, the anti-rotation gasket structure may further include a reinforcing plate 4, and the reinforcing plate 4 is sleeved on the fixed cylinder sleeve 3 and is respectively and fixedly connected to the fixed cylinder sleeve 3 and the second gasket 2. The reinforcing plate 4 is provided for fixing the fixing sleeve 3 and the second gasket 2 to prevent the occurrence of the problem of open welding due to insufficient strength of the fixing sleeve 3. When the reinforcing plate 4 is welded, the fixing barrel sleeve 3 is firstly placed in the annular positioning groove 22 of the second gasket 2, then the reinforcing plate 4 is respectively welded with the second gasket 2 and the fixing barrel sleeve 3, and the accuracy of positioning is guaranteed. The connection mode of the reinforcing plate 4, the fixing barrel sleeve 3 and the second gasket 2 can be various, for example, the reinforcing plate 4 and the fixing barrel sleeve 3 are in full circumferential welding, so that when the fastener is screwed down, the problem that the fixing barrel sleeve 3 is not welded due to the fact that friction force between the second gasket 2 and a flange surface 401 of the fastener 400 (such as a bolt) is large can be solved. The reinforcing plate 4 and the second gasket 2 are welded in a segmented manner, so that relative movement among the reinforcing plate 4, the fixed barrel casing 3 and the second gasket 2 is ensured, and the welding strength requirement is met, and in addition, the reinforcing plate 4 can be constructed in various manners, for example, referring to fig. 1 to 3, the reinforcing plate 4 can be constructed in a circular plate-shaped structure, a fourth through hole 41 for the fixed barrel casing 3 to pass through is arranged on the reinforcing plate 4, in addition, a plurality of openings 42 for reducing weight are arranged on the reinforcing plate 4, and the plurality of openings 42 are uniformly arranged at intervals in the circumferential direction of the reinforcing plate. The disclosure is not limited in this regard.

On the basis of the scheme, the present disclosure also provides a connecting assembly, and fig. 5 shows an embodiment of the connecting assembly. Referring to fig. 5, the connecting assembly may include a fastener 400, the connecting assembly includes the anti-rotation spacer structure, the fastener 400 is matched with the through hole 101 and the fixing sleeve 3, and the fastener 400 sequentially passes through the through hole 101 of the spacer assembly 100 and the third through hole 33 of the fixing sleeve 3 to be connected to the vehicle body. The flange surface 401 of the fastener 400 is in contact with the second surface 24 of the second gasket 2, and when the fastener 400 is tightened, because the flange surface 401 of the fastener 400 (for example, a bolt) has a certain contact area with the second surface 24 of the second gasket 2, the second gasket 2 is not deformed greatly, and therefore, the axial force of the fastener 400 is not greatly lost when the fastener 400 is transmitted to the fixing sleeve 3 through the second gasket 2.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (12)

1. An anti-rotation gasket structure is characterized by comprising a gasket component and a fixed barrel sleeve, wherein the gasket component is provided with a through hole, the fixed barrel sleeve is fixedly connected with the gasket component, part of the outer peripheral surface of the fixed barrel sleeve is provided with an anti-rotation structure,

wherein, the through hole and the fixed barrel casing are coaxially arranged.

2. The anti-rotation gasket structure according to claim 1, wherein the fixing sleeve includes a second shaft section, the anti-rotation structure includes a first anti-rotation portion and a second anti-rotation portion that are engaged with each other, the first anti-rotation portion is provided to the second shaft section, and the second anti-rotation portion is provided to the to-be-assembled member.

3. The anti-rotation spacer structure according to claim 2, characterized in that the first anti-rotation portion is configured as an outer peripheral surface of the second shaft section, the second anti-rotation portion is configured as an inner surface of the member to be assembled, the outer peripheral surface and the inner surface being in interference fit, or,

one of the first rotation prevention part and the second rotation prevention part is constructed as a clamping groove, the other of the first rotation prevention part and the second rotation prevention part is constructed as a protrusion, and the clamping groove is matched and connected with the protrusion.

4. An anti-rotation spacer structure according to claim 1, characterized in that the spacer assembly comprises a second spacer, the fixing sleeve being integrally formed or fixedly connected with the second spacer.

5. An anti-rotation gasket structure according to claim 4, wherein the second gasket is provided with an annular positioning groove located on the first surface of the second gasket, and the end of the fixed sleeve is fitted and fixedly connected with the annular positioning groove.

6. An anti-rotation shim structure according to claim 5, wherein the shim assembly further comprises a first shim secured to the second shim and provided with a first via, the second shim having a second via formed thereon, the first and second vias being coaxially arranged to together form the through-hole,

and the fixed cylinder sleeve penetrates through the first through hole and is fixedly connected to the annular positioning groove.

7. The anti-rotation gasket structure according to claim 6, wherein the fixed sleeve includes a first shaft section that is coaxially disposed and connected to a second shaft section of the fixed sleeve, an outer diameter of the first shaft section is larger than an outer diameter of the second shaft section, and a side of the first shaft section facing the second shaft section forms a support end surface that supports the first gasket.

8. The anti-rotation spacer structure according to claim 6, wherein the first spacer includes a first plate-like portion, a second plate-like portion, and a first connecting portion, the first plate-like portion and the second plate-like portion being arranged at a spacing in an axial direction of the anti-rotation spacer structure, and the first plate-like portion and the second plate-like portion being connected therebetween by the first connecting portion;

the second shim includes a first shim plate portion, a second shim plate portion, and a second connecting portion, the first shim plate portion and the second shim plate portion being arranged at an interval in an axial direction of the rotation preventing shim structure, and the first shim plate portion and the second shim plate portion being connected by the second connecting portion.

9. An anti-rotation gasket structure according to claim 8, wherein the first through-hole is formed in the first plate-like portion, and the first plate-like portion is provided with a second end face in a direction toward the second gasket, the second end face being in abutment with the support end face of the first gasket.

10. An anti-rotation spacer structure according to claim 8, wherein a partial area of the second shim plate portion is raised toward the second plate-like portion to form a plurality of raised portions which are arranged evenly at intervals in the circumferential direction of the second shim plate portion, the raised portions being fixedly connected to the second plate-like portion.

11. An anti-rotation gasket structure according to claim 4, further comprising a reinforcing plate that is fitted over the fixed sleeve and fixedly connected to the fixed sleeve and the second gasket, respectively.

12. A connecting assembly comprising a fastener, characterized in that the connecting assembly comprises an anti-rotation shim structure according to any one of claims 1 to 11, the fastener cooperating with the through hole and the fixing sleeve,

wherein the flange face of the fastener is in abutment with the second surface of the second gasket.

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