CN115126763A

CN115126763A - Gasket

Info

Publication number: CN115126763A
Application number: CN202110319307.8A
Authority: CN
Inventors: 陈勇波; 陈永华; 刘�东
Original assignee: Guangdong Dongjian Automobile Technology Co Ltd
Current assignee: Guangdong Dongjian Automobile Technology Co Ltd
Priority date: 2021-03-25
Filing date: 2021-03-25
Publication date: 2022-09-30
Anticipated expiration: 2041-03-25
Also published as: CN115126763B

Abstract

The present invention relates to a gasket, comprising: the base comprises a base body, the base body is provided with a matching surface used for being matched with the fixing body in an abutting mode, and one side, perpendicular to the axis direction of the fastener, of the base body is provided with a notch groove; and the clamping piece is installed in the notch groove, the clamping piece is provided with a clamping groove and a clamping inlet communicated with the clamping groove, the clamping inlet is used for supplying the fastener to be clamped into the clamping groove, and the clamping groove is used for being matched with the fastener in a clamping manner. The gasket of this scheme can be applicable to the installation in narrow and small space well, and can effectively promote the installation effectiveness.

Description

Gasket

Technical Field

The invention relates to the technical field of fastener installation, in particular to a gasket.

Background

The bolt and the nut are matched in a common mounting and fastening mode in daily life, and the bolt and the nut are widely applied to various devices, particularly a large number of applications in the automobile industry. However, the conventional manner of fitting the bolt and the nut cannot achieve the effect desired by the designer in some special installation environments. For example, there is also a restricted movable body between the fixed body and the connected body, and a part of the restricted movable body is connected to the fixed body and the other part has a certain degree of freedom with respect to the fixed body. Because the space between the fixed body and the limited movable body is narrow, if the limited movable body is of an unassemblable structure, a common gasket is difficult to install between the fixed body and the limited movable body; if the limited movable body is of a detachable structure, the whole limited movable body needs to be detached, then the gasket needs to be installed, and finally the limited movable body needs to be installed back to the original position.

Disclosure of Invention

In view of the above, there is a need to provide a gasket that is well suited for installation in a narrow space and that can effectively improve installation efficiency.

The application provides a gasket, includes:

the base comprises a base body, the base body is provided with a matching surface used for being matched with the fixing body in an abutting mode, and one side, perpendicular to the axis direction of the fastener, of the base body is provided with a notch groove; and

the joint spare, the joint spare install in the breach inslot, the joint spare be equipped with the joint groove and with the card entry of joint groove intercommunication, the card entry is used for supplying the fastener card is gone into extremely the joint inslot, the joint groove be used for with fastener chucking cooperation.

When being applied to the narrow and small space between the fixed body and the limited activity body, through applying perpendicular to fastener (like the bolt) axial direction's external force F to the gasket, make the gasket be close to the fastener gradually and begin to contact with the threaded surface of fastener, the fastener can enter into the joint inslot along the card income mouth of joint spare, can be with the fastener chucking through the joint groove, after being assembled in proper order by connector and nut, the fitting surface of base can with the bottom surface looks butt of the fixed body, thereby realize the stable installation of gasket. And after the gasket and the fastening piece are clamped in place, the fastening piece and the gasket form a relative whole, the position of the gasket is relatively fixed, and the position fixation can be ensured without manually holding the gasket by hands. The gasket of this scheme can be applicable to the installation in narrow and small space well to can save the step of dismantling and installing the limited activity body, also need not the position that other manual work guaranteed the gasket, can effectively simplify the installation, promote the installation effectiveness.

In one embodiment, the clamping piece comprises a clamping ring with an opening at one side and elastic arms respectively connected to two opposite ends of the clamping ring, each elastic arm is bent towards the inside of the clamping ring from the end part of the clamping ring, and the two elastic arms are matched to clamp the fastening piece.

In one embodiment, each elastic arm comprises a first arc section matched with the outer peripheral surface of the fastener, and the clamping groove is defined between the two first arc sections.

In one embodiment, each of the resilient arms further includes a lead-in connected between the collar and the first arc segment, the lead-in defining a guide slot therebetween that diverges outwardly from a center of the collar.

In one embodiment, the collar includes second arc segments respectively opposite to and spaced from the first arc segments, a first connecting segment connected between each second arc segment and the corresponding elastic arm, and a second connecting segment connected between two second arc segments.

In one embodiment, a positioning groove is formed on one side of the second connecting segment close to the center of the clamping ring, and the seat body is provided with a positioning part matched with the positioning groove.

In one embodiment, a supporting table is arranged on one side, away from the matching surface, of the inner peripheral wall of the notch groove, the clamping member is arranged on the supporting table, a limiting portion is further arranged on one side, close to the matching surface, of the inner side wall of the notch groove, and the limiting portion is in limiting fit with the clamping member.

In one embodiment, the two limiting portions are correspondingly arranged on two opposite sides of the notch groove.

In one embodiment, the base further comprises a handle connected to the seat body.

In one embodiment, the base further comprises a boss arranged on one side of the base body far away from the matching surface, and the boss is used for penetrating through the through hole of the limited movable body and being in butt fit with the connected body.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

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

FIG. 1 is a schematic structural diagram of a gasket according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the base of the gasket of FIG. 1;

FIG. 3 is a schematic view of the base shown in FIG. 2 from another perspective;

FIG. 4 is a schematic structural view of a snap member of the gasket of FIG. 1;

FIG. 5 is a schematic view of the clip of FIG. 4 from another perspective;

FIG. 6 is a schematic view of an initial state in which a spacer is assembled between a stationary body and a restricted movable body according to an embodiment;

fig. 7 is a schematic view showing a state in which the spacer of fig. 6 is assembled between the stationary body and the restricted movable body in a completed state;

fig. 8 is a schematic view of the fixed body, the spacer, the restricted movable body, and the connected body after assembly.

10. A base; 11. a seat body; 111. a mating surface; 112. a notch groove; 113. a positioning part; 114. a support table; 115. a limiting part; 12. a handle; 13. a boss; 20. a clamping piece; 201. a clamping groove; 202. a card entrance; 203. a guide groove; 204. positioning a groove; 21. a collar; 211. a second arc segment; 212. a first connection section; 213. a second connection section; 22. a resilient arm; 221. a first arc segment; 222. a lead-in section; 100. a fixed body; 200. a confined mobile body; 300. a connected body; 400. a fastener; 500. and a nut.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

The application provides a gasket, and this gasket application scope is wide, especially can be applicable to the installation in the narrow and small space well. In order to facilitate understanding of the present invention, an application scenario of the gasket according to an embodiment of the present invention is briefly described below, and it should be noted that the gasket is not limited to be applied to this scenario, and may be applied to other scenarios.

As shown in fig. 8, in a special application scenario, a limited movable body 200 is further disposed between the fixed body 100 and the connected body 300, and a part of the limited movable body 200 is connected and fixed with the fixed body 100, for example, the limited movable body 200 is welded and fixed with the fixed body 100, at this time, the limited movable body 200 is in an unassemblable structure, or the limited movable body 200 is connected with the fixed body 100 through a detachable connecting member, at this time, the limited movable body 200 is in an attachable structure, and another part of the limited movable body 200 has a certain degree of freedom relative to the fixed body 100. The fixed body 100 is a rigid body and does not deform under an external force, the limited movable body 200 is a deformable member, and the free end of the limited movable body 200 can deform under the external force, so that a certain included angle α is formed between the fixed body 100 and the limited movable body 200. In the assembly process, after the fastening member 400 sequentially passes through the limited movable body 200 and the fixed body 100, the connected body 300 is sleeved on the fastening member 400, and is finally locked and fixed with the fastening member 400 by the nut 500, in order to prevent the protruding structure of the limited movable body 200 from being extruded and deformed when being locked by the nut 500, a washer is required to be installed between the limited movable body 200 and the fixed body 100 for supporting, and the fastening member 400 is required to pass through. In the present embodiment, the fastener 400 is mainly illustrated by a T-bolt, but may be applied to other types of fasteners. If the restricted movable body 200 is of a non-detachable structure, it is difficult to install a general gasket between the fixed body 100 and the restricted movable body 200; if the limited movable body 200 is of a detachable structure, the whole limited movable body 200 needs to be detached first, then the gasket needs to be installed, and finally the limited movable body 200 needs to be installed back to the original position. The gasket of the present invention is well suited for the installation scenarios described above.

Referring to fig. 1, 2 and 4, a gasket according to an embodiment of the present invention includes a base 10 and a clip 20. The base 10 comprises a base body 11, the base body 11 is provided with a matching surface 111 for abutting matching with the fixing body 100, and one side of the base body 11 perpendicular to the axial direction of the fastener 400 is provided with a notch groove 112; the clamping piece 20 is installed in the notch groove 112, the clamping piece 20 is provided with a clamping groove 201 and a clamping opening 202 communicated with the clamping groove 201, the clamping opening 202 is used for allowing the fastener 400 to be clamped into the clamping groove 201, and the clamping groove 201 is used for being matched with the fastener 400 in a clamping mode.

Referring to fig. 6 to 8, when the gasket is applied to a narrow space between the fixed body 100 and the limited movable body 200, an external force F perpendicular to the axial direction of the fastening member 400 is applied to the gasket, so that the gasket is gradually close to the fastening member 400 and starts to contact with the threaded surface of the fastening member 400, the fastening member 400 can enter the clamping groove 201 along the clamping entrance 202 of the clamping member 20, the fastening member 400 can be clamped through the clamping groove 201, and after the connected body 300 and the nut 500 are sequentially assembled, the mating surface 111 of the base 10 can abut against the bottom surface of the fixed body 100, thereby achieving stable installation of the gasket. And after the gasket and the fastener 400 are clamped in place, the fastener 400 and the gasket form a relative whole, the position of the gasket is relatively fixed, and the gasket is not required to be manually held to ensure the position fixation. The gasket of this scheme can be applicable to the installation in the narrow and small space well to can save the step of dismantling and installing limited activity body 200, also need not the position that other manual work guaranteed the gasket, can effectively simplify the installation, promote the installation effectiveness.

In addition, the gasket has better applicability to other special installation scenes. For example, when the T-shaped fastener 400 is installed with the head facing up toward the lower threaded end, the T-shaped fastener 400 tends to fall out of the mounting hole due to gravity. Also for example, when the fastener 400 is inserted through a mounting hole having a size larger than the diameter of the fastener 400, the fastener 400 is easily moved in the mounting hole, cannot be centered, and easily falls out of the mounting hole when the nut 500 is not locked. After the gasket is clamped with the fastener 400, the gasket and the fastener 400 form a relative whole, the axis of the fastener 400 is always located on the axis of the mounting hole, the centering effect can be achieved, and the risk that the fastener 400 drops from the mounting hole without the locking nut 500 is avoided.

Further, referring to fig. 4, in the present embodiment, the clamping member 20 includes a collar 21 with an opening on one side, and elastic arms 22 respectively connected to two opposite ends of the collar 21, each of the elastic arms 22 is bent from an end of the collar 21 toward the inside of the collar 21, and the two elastic arms 22 cooperate to clamp the fastening member 400. Specifically, collar 21 is substantially in a U-shaped structure with one side open, two elastic arms 22 are bent from the open end of collar 21 toward collar 21, and a certain gap exists between elastic arms 22 and collar 21, so that collar 21 and elastic arms 22 have certain deformability. When assembling joint piece 20 and base 10, can follow the lateral part of rand 21 and exert certain extrusion force, make rand 21 produce certain deformation to make rand 21 can assemble to base 10 in the breach groove 112, assemble simple and conveniently. When the gasket and the fastener 400 are clamped, the clamping inlet 202 of the clamping member 20 is aligned with the side part of the fastener 400, as the clamping member 20 gradually moves towards the fastener 400, the fastener 400 applies pressure to the elastic arms 22 on the two sides, so that the elastic arms 22 on the two sides gradually deform, after the gasket moves in place, the elastic arms 22 on the two sides can clamp and fix the fastener 400, and under the condition of no external force, the gasket and the fastener 400 cannot generate relative displacement in the axial direction, so that the assembly of the gasket and the fastener 400 in the first stage is completed. During the tightening phase of the nut 500 with the fastener 400, as the nut 500 is gradually tightened, the washer will gradually move closer to the head of the fastener 400 (i.e., closer to the side of the fixed body 100), during which the two resilient arms 22 will expand and contract with the threaded structure until finally the nut 500 locks the washer to the final position, completing the installation. Alternatively, the snap member 20 is a snap spring. Specifically, the clamping piece 20 can be formed by integrally bending metal bars, so that the manufacturing process can be simplified, and sufficient structural strength can be ensured.

Further, referring to fig. 5, in the present embodiment, each of the elastic arms 22 includes a first arc section 221 matched with an outer peripheral surface of the fastener 400, and the clamping groove 201 is defined between the two first arc sections 221. Specifically, first segmental arc 221 is the arc with fastener 400 outer peripheral face looks adaptation, and two first segmental arcs 221 enclose to close and form a circular-like joint groove 201, and the diameter in joint groove 201 is less than the nominal diameter of fastener 400 screw thread, and two first segmental arcs 221 can press from both sides fastener 400 firmly and tightly fix, further guarantee the assembly reliability between gasket and the fastener 400.

Further, in the present embodiment, each of the elastic arms 22 further includes a lead-in section 222 connected between the collar 21 and the first arc section 221, and the two lead-in sections 222 define a guide groove 203 therebetween, which expands outward from the center of the collar 21. Specifically, the two guiding sections 222 are symmetrically arranged in a figure-eight shape, and the portion close to the first arc section 221 is relatively narrow, so that the guiding groove 203 is in a flared structure. When the fastener 400 is clamped, the fastener 400 can smoothly enter the guide groove 203 from the clamping opening 202, when the fastener 400 moves to the narrow opening position of the guide groove 203, the connecting part of the leading-in section 222 and the first arc section 221 is extruded by the fastener 400, the first arc section 221 deforms and expands until the fastener 400 smoothly enters the clamping groove 201, and finally the fastener 400 is clamped and fixed through the two first arc sections 221, the whole assembling process is simple, and the assembling efficiency can be further improved through the guide effect of the guide groove 203.

Further, referring to fig. 5, in the present embodiment, the retainer ring 21 includes second arc segments 211 respectively opposite to and spaced apart from the first arc segments 221, a first connecting segment 212 connected between each second arc segment 211 and the corresponding elastic arm 22, and a second connecting segment 213 connected between two second arc segments 211. Specifically, the first arc section 221 and the second arc section 211 are both arc-shaped structures, and the bending directions of the first arc section 221 and the second arc section 211 which are located on the same side are the same. The first arc section 221 and the second arc section 211 which are positioned on the same side are connected through the first connecting section 212, the first connecting section 212 is generally in an arc-shaped structure, and the two second arc sections 211 are connected through the second connecting section 213.

Further, as shown in fig. 2 and 5, in the present embodiment, a positioning groove 204 is provided on a side of the second connecting section 213 close to the center of the collar 21, and the seat body 11 is provided with a positioning portion 113 matched with the positioning groove 204. Specifically, the second coupling portion 213 has a substantially circular arc-shaped structure that is arched toward the outer side of the collar 21, and the positioning groove 204 is formed on the inner side of the second coupling portion 213. Through the cooperation of the positioning groove 204 and the positioning portion 113 on the seat body 11, the quick positioning assembly between the clip member 20 and the base 10 can be realized, and the assembly reliability can be ensured.

Further, referring to fig. 1 and fig. 2, in this embodiment, a supporting platform 114 is disposed on a side of the inner peripheral wall of the notch groove 112 away from the matching surface 111, the fastening member 20 is disposed on the supporting platform 114, a limiting portion 115 is further disposed on a side of the inner side wall of the notch groove 112 close to the matching surface 111, and the limiting portion 115 is in limit fit with the fastening member 20. Specifically, as shown in fig. 2, the supporting platform 114 is a profile modeling sinking platform matched with the shape of the clamping piece 20, when assembling the clamping piece 20 and the base 10, first, the positioning groove 204 of the clamping piece 20 is sleeved with the positioning portion 113 on the seat body 11, then a certain force is applied to the collar 21 of the clamping piece 20, so that the overall size of the clamping piece 20 is reduced, the clamping piece 20 can be smoothly placed on the supporting platform 114, when the external force is removed, the clamping piece 20 recovers deformation, the clamping piece 20 is limited by the limiting portion 115 and cannot be separated from the supporting platform 114, and therefore stable assembly between the clamping piece 20 and the base 10 is achieved. Optionally, in this embodiment, two limiting portions 115 are provided, and two limiting portions 115 are correspondingly provided on two opposite sides of the notch groove 112, so that the assembling stability between the clip 20 and the base 10 can be further improved.

In order to facilitate the operator to hold the gasket, in this embodiment, the base 10 further includes a handle 12 connected to the seat body 11. Specifically, as shown in fig. 2, the handle 12 is disposed on a side of the seat body 11 away from the notch groove 112, the handle 12 extends along a radial direction of the fastener 400, and one end of the handle 12 away from the seat body 11 is bent to facilitate holding and pinching.

Further, as shown in fig. 8, in some special scenes, the restricted moving body 200 is provided with a convex structure protruding toward one side of the connected body 300, and a penetration hole of the restricted moving body 200 is provided on the convex structure. If the nut 500 is used for locking, the protrusion structure of the restricted movable body 200 may be deformed by being pressed during the locking of the nut 500, and a desired installation effect may not be achieved. In order to solve the above problem, as shown in fig. 3, in addition to the above embodiment, the base 10 further includes a boss 13 provided on a side of the seat body 11 away from the engagement surface 111, and the boss 13 is adapted to pass through a through hole of the restricted movable body 200 and to be abutted against and engaged with the connected body 300.

Specifically, referring to fig. 6 to 8, when assembling, a force F is applied to the spacer toward the fastening member 400, the spacer gradually moves toward the fastening member 400 until the engaging member 20 of the spacer is engaged with the fastening member 400, the spacer is located at the middle position of the fastening member 400, and after the engaging member is engaged with the fastening member 400, the boss 13 of the base 10 is aligned with the through hole of the restricted movable body 200, and the boss 13 of the base 10 does not completely enter the through hole of the restricted movable body 200 because the connected body 300 and the nut 500 are not yet assembled. Then, the mounting hole on the connected body 300 is inserted through the thread surface of the fastener 400 until the upper surface of the connected body 300 contacts the convex structure of the limited movable body 200, and the installation process of the connected body 300 is always upward movement, so that the deformable part of the limited movable body 200 is forced to deform until the boss 13 of the base 10 is completely pressed into the through hole of the limited movable body 200, and at this time, the axis of the fastener 400 can only move in a very small range near the through hole axis of the limited movable body 200, thereby greatly reducing the risk that the fastener 400 falls off from the mounting hole of the fixed body 100. Finally, the nut 500 is mounted and locked to a specified torque, and the connected body 300 is in abutting fit with the boss 13 of the base 10, so that the pressure generated by locking the nut 500 can be borne, and the protruding structure of the limited movable body 200 can be prevented from being extruded and deformed.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A gasket, comprising:

2. The gasket of claim 1 wherein said snap-fit member includes a collar open at one end and resilient arms connected to opposite ends of said collar, respectively, each of said resilient arms being angled inwardly from an end of said collar toward said collar, said resilient arms cooperating to retain said fastener.

3. The gasket of claim 2 wherein each of said resilient arms includes a first arcuate segment that mates with an outer peripheral surface of said fastener, said first arcuate segments defining said snap-in groove therebetween.

4. The gasket of claim 3 wherein each of said resilient arms further includes a lead-in connected between said collar and said first arcuate segment, said lead-in defining a guide slot therebetween that diverges outwardly from a center of said collar.

5. The gasket of claim 3 wherein said collar includes second arcuate segments spaced from and opposite each of said first arcuate segments, a first connecting segment connected between each of said second arcuate segments and a corresponding one of said resilient arms, and a second connecting segment connected between two of said second arcuate segments.

6. The gasket of claim 5 wherein the second connecting segment has a positioning groove on a side thereof near the center of the collar, and the seat body has a positioning portion engaged with the positioning groove.

7. The gasket according to claim 1, wherein a support platform is disposed on a side of the inner peripheral wall of the notch groove away from the fitting surface, the clamping member is disposed on the support platform, a limiting portion is further disposed on a side of the inner side wall of the notch groove close to the fitting surface, and the limiting portion is in limiting fit with the clamping member.

8. The gasket according to claim 7, wherein there are two limiting portions, and the two limiting portions are correspondingly disposed on two opposite sides of the notch groove.

9. The gasket of claim 1 wherein the base further comprises a handle connected to the seat body.

10. The gasket of any one of claims 1 to 9, wherein the base further comprises a boss provided on a side of the seat body remote from the mating surface, the boss being adapted to pass through the through hole of the restricted movable body and to be mated in abutment with the connected body.