Special-shaped fastener for inner plate of vehicle door

Abstract

The utility model discloses a vehicle door inner plate special-shaped fastener which comprises a baffle, and linings are fixedly connected to the bottom of the baffle at equal intervals. According to the special-shaped fastener for the vehicle door inner plate, when the vehicle door inner plate needs to be fastened, the gaskets are driven by the baffles to be inserted into the fastening holes, the screw rod is sleeved with the disc spring, then the screw rod is screwed into the position between the gaskets through threaded connection, the gaskets are opened outwards along with insertion of the screw rod, the gaskets abut against the inner walls of the fastening holes through the protruding blocks, and the vehicle door inner plate is fastened; after the fastener is tightened, the screw rod and the screw rod head can continue to rotate through the disc spring until the first clamping groove is aligned with the second clamping groove, then the clamping blocks on the two sides of the support are made to be away from each other, then the support is erected on the screw rod head, the clamping blocks are reset through elastic connection, and the clamping blocks are inserted into the first clamping groove and the second clamping groove. And the situation that the screw rotates reversely to loosen the special-shaped fastener due to vibration generated by vehicle running can be avoided, so that the fastening stability of the vehicle door inner plate is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of special-shaped fastener, concretely is a car door inner plate special-shaped fastener. BACKGROUND

[0002] The accurate definition of special-shaped fastener should be: non-standard special-shaped fastener; and the fastener is a kind of mechanical parts for fastening connection and is widely applied; the use industry of fastener is wide, and the fastener of existing national standard is called standard fastener, or simply called standard part, and the non-standard fastener is special-shaped fastener, and when installing car door inner plate, special-shaped fastener needs to be used.

[0003] In the patent application with the name of "a high-corrosion-resistant car door inner plate special-shaped fastener" with the authorization publication number CN217055857U and the authorization publication date of July 26, 2022, a hoop body is provided, a fastening liner pipe is fixedly installed on the inner ring of the hoop body, a swelling joint is formed in the bottom of the pipe wall of the fastening liner pipe, a female thread is arranged on the inner wall of the fastening liner pipe, a fastening contact pad is bonded to the lower surface of the fastening liner pipe, and a fastening convex strip is arranged on the bottom surface of the fastening contact pad. The lower half pipe section of the fastening liner pipe is disconnected by the swelling joint, the bolt body is screwed into the fastening liner pipe through the convex thread, the pipe petals below the fastening liner pipe are expanded, and the fastening contact pad and the transversely arranged fastening convex strip are provided. When the pipe petals below the fastening liner pipe are expanded, the fastening convex strip and the fastening contact pad are in contact pressure with the surrounding structure, thereby avoiding the unstable buckling of the expansion buckle due to the smooth surface, providing an elastic structure with buffering for contact pressure, avoiding the expansion buckle from being easily pulled out by external force in application, and realizing the effect of improving the stability and safety of application.

[0004] Although the existing car door inner plate special-shaped fastener realizes the effect of improving the stability and safety of application, it is found that, in use, due to the vibration generated by the vehicle during driving, the bolt body is not provided with an anti-reverse structure, so that the bolt body is reversed due to vibration, the special-shaped fastener is loose, the installation stability of the car door inner plate is poor, and use is inconvenient, so the car door inner plate special-shaped fastener is proposed to solve the problems in the above. UTILITY MODEL CONTENTS

[0005] 1. The technical problem to be solved by the utility model is:

[0006] The utility model aims to provide a car door inner plate special-shaped fastener to solve the problems in the above background.

[0007] 2. Technical scheme:

[0008] In order to achieve the above object, the utility model provides the following technical scheme: a car door inner plate special-shaped fastener, including baffle, the gusset plate bottom equidistance fixed connection has the gasket, the gasket's outside equidistance fixed connection has the protruding piece, wherein,

[0009] The middle part of the gusset plate is penetrated by a threaded hole, the threaded hole and the inner wall of the gasket are provided with internal threads, a screw rod is penetrated in the threaded hole, the top of the screw rod is fixedly connected with a screw head, and a disc spring is sleeved on the screw rod between the screw head and the gusset plate.

[0010] The first clamping groove is symmetrically arranged at the top of the gusset plate, the second clamping groove is arranged at the bottom of one side of the screw head corresponding to the first clamping groove, the top of the screw head is provided with a support, the support is elastically connected with a support rod at the two sides, and the support rod is fixedly connected with a clamping block at one end corresponding to the first clamping groove and the second clamping groove.

[0011] Preferably, the cross section of the protruding piece is a right trapezoid, and the inclined surface of the protruding piece is arranged downward.

[0012] Preferably, the outer diameter of the disc spring is greater than the inner diameter of the threaded hole, and the inner diameter of the disc spring is greater than the outer diameter of the screw rod.

[0013] Preferably, the support is symmetrically provided with a spring groove in the inside at the two sides, the support rod is fixedly connected with a baffle at one end in the spring groove, and the support rod is sleeved with a spring outside the spring groove.

[0014] Preferably, the spring is respectively abutted against the inner wall of the spring groove and the baffle at two ends, and the baffle is elastically connected with the support through the spring.

[0015] Preferably, the width of the clamping block is consistent with the width of the first clamping groove and the second clamping groove.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the car door inner plate special-shaped fastener has the following specific contents:

[0018] (1) when the inner plate of the vehicle door needs to be fastened, the gasket is inserted into the fastening hole through the baffle, the disc spring is sleeved on the screw rod, then the screw rod is screwed into the gasket through threaded connection, with the insertion of the screw rod, the gasket is opened outward, the gasket is abutted against the inner wall of the fastening hole through the protrusion, the fastening of the inner plate of the vehicle door is completed, after the fastener is tightened, the screw rod and the screw rod head can continue to rotate through the disc spring, until the first clamping groove is aligned with the second clamping groove, then the clamping blocks on both sides of the bracket are away from each other, then the bracket is placed on the screw rod head, the clamping blocks are reset through elastic connection, the clamping blocks are inserted into the first clamping groove and the second clamping groove, through the anti-reverse structure, the vibration generated during the driving of the vehicle can be avoided, the reverse rotation of the screw rod caused by the vibration can be avoided, the special-shaped fastener is loosened, so that the stability of the fastening of the inner plate of the vehicle door is improved.

[0019] (2) when the clamping blocks are away from each other, the baffle is moved by the supporting rod against the spring force, when the clamping blocks are loosened, the clamping blocks are reset through the spring, through the elastically connected clamping blocks, when the special-shaped fastener is disassembled later, the clamping blocks can be directly removed, then the special-shaped fastener can be normally disassembled, when the clamping blocks enter the first clamping groove and the second clamping groove, through the spring force of the clamping blocks and the friction force of the inner wall of the first clamping groove and the second clamping groove, the clamping blocks can be prevented from moving out of the first clamping groove and the second clamping groove. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic diagram of the utility model;

[0022] Figure 3 It is a three-dimensional structure schematic diagram of the utility model;

[0023] Figure 4 It is a three-dimensional structure schematic diagram of the utility model.

[0024] In the drawing: 1, base plate; 2, gasket; 3, protrusion; 4, screw hole; 5, internal thread; 6, screw rod; 7, screw rod head; 8, disc spring; 9, first clamping groove; 10, second clamping groove; 11, bracket; 12, supporting rod; 13, spring groove; 14, baffle; 15, spring; 16, clamping block. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the utility model, the technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] In the description of the utility model, it needs to understand that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or positional relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model indicated or implied by the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0027] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing", "provided with" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment

[0029] Please refer to Figures 1 to 4 A special-shaped fastener for a car door inner panel, comprising a pad plate 1, the bottom of the pad plate 1 is fixedly connected with a gasket 2 at equal intervals, the outer side of the gasket 2 is fixedly connected with a protruding block 3 at equal intervals, wherein,

[0030] A screw hole 4 is formed through the middle of the pad plate 1, the inner wall of the gasket 2 is provided with an internal thread 5, a screw rod 6 is penetrated through the screw hole 4, the top of the screw rod 6 is fixedly connected with a screw rod head 7, a disc spring 8 is sleeved on the screw rod 6 between the screw rod head 7 and the pad plate 1;

[0031] First clamping grooves 9 are symmetrically formed on the top of both sides of the pad plate 1, second clamping grooves 10 are formed on the bottom of one side of the screw rod head 7 corresponding to the first clamping grooves 9, supports 11 are arranged on the top of the screw rod head 7, supporting rods 12 are elastically connected on both sides of the supports 11, and clamping blocks 16 are fixedly connected on one end of the supporting rods 12 corresponding to the first clamping grooves 9 and the second clamping grooves 10;

[0032] When the inner plate of the vehicle door needs to be fastened, the gasket 2 is inserted into the fastening hole through the backing plate 1, the disc spring 8 is sleeved on the screw rod 6, then the screw rod 6 is screwed into the gasket 2 through threaded connection, with the insertion of the screw rod 6, the gasket 2 is spread outward, the gasket 2 is pressed against the inner wall of the fastening hole through the protrusion 3, and the fastening of the inner plate of the vehicle door is completed. After the fastener is tightened, the screw rod 6 and the screw rod head 7 can continue to rotate through the disc spring 8, until the first clamping groove 9 is aligned with the second clamping groove 10, then the clamping blocks 16 on both sides of the bracket 11 are moved away from each other, then the bracket 11 is placed on the screw rod head 7, the clamping blocks 16 are reset through elastic connection, the clamping blocks 16 are inserted into the first clamping groove 9 and the second clamping groove 10, and through the anti-reverse structure, the loosening of the special-shaped fastener caused by the reverse rotation of the screw rod 6 due to the vibration generated during the driving of the vehicle can be avoided, so that the stability of the fastening of the inner plate of the vehicle door is improved.

[0033] Please refer to Figures 1 to 4 , the cross section of the protrusion 3 is a right trapezoid, the inclined surface of the protrusion 3 is arranged downward, the outer diameter of the disc spring 8 is greater than the inner diameter of the screw hole 4, and the inner diameter of the disc spring 8 is greater than the outer diameter of the screw rod 6, the spring grooves 13 are symmetrically formed in the inner sides of the bracket 11, the baffle 14 is fixedly connected to one end of the supporting rod 12 in the spring groove 13, and the spring 15 is sleeved outside the supporting rod 12 in the spring groove 13. Through the setting of the right trapezoidal protrusion 3, the gasket 2 is conveniently inserted into the fastening hole when the gasket 2 is not spread, and when the gasket 2 is spread outward, the gasket 2 is pressed against the inner wall of the fastening hole through the protrusion 3, and the friction is increased through the protrusion 3, so that the gasket 2 is prevented from moving out of the inside of the fastening hole.

[0034] Please refer to Figures 1 to 4 , the ends of the spring 15 are pressed against the inner walls of the spring grooves 13 and the baffle 14 respectively, the baffle 14 is elastically connected with the bracket 11 through the spring 15, the width of the clamping block 16 is consistent with the width of the first clamping groove 9 and the second clamping groove 10, when the clamping blocks 16 move away from each other, the supporting rod 12 drives the baffle 14 to move against the elastic force of the spring 15, when the clamping blocks 16 are loosened, the spring 15 can drive the clamping blocks 16 to reset, through the elastically connected clamping blocks 16, when the special-shaped fastener is disassembled later, the clamping blocks 16 can be directly removed, and then the special-shaped fastener can be normally disassembled, and when the clamping blocks 16 enter the first clamping groove 9 and the second clamping groove 10, the spring 15 elastic force received by the clamping blocks 16 cooperates with the friction force between the clamping blocks 16 and the inner walls of the first clamping groove 9 and the second clamping groove 10, so that the clamping blocks 16 are prevented from moving out of the inside of the first clamping groove 9 and the second clamping groove 10 due to vibration.

[0035] Working principle: when the special-shaped fastener for the inner plate of the vehicle door is used, as Figures 1 to 4As shown, first, when the inner plate of the door needs to be fastened, the gasket 2 is inserted into the fastening hole by the backing plate 1, the disc spring 8 is sleeved on the screw rod 6, then the screw rod 6 is screwed into the gasket 2 through threaded connection, with the insertion of the screw rod 6, the gasket 2 is expanded outward, the gasket 2 is abutted against the inner wall of the fastening hole through the protrusion 3, and the fastening of the inner plate of the door is completed, after the fastener is tightened, the screw rod 6 and the screw head 7 can continue to rotate through the disc spring 8, until the first clamping groove 9 is aligned with the second clamping groove 10, then the clamping blocks 16 on both sides of the bracket 11 are away from each other, then the bracket 11 is placed on the screw head 7, the clamping blocks 16 are reset through elastic connection, the clamping blocks 16 are inserted into the inside of the first clamping groove 9 and the second clamping groove 10, through the anti-reverse structure, the vibration caused by the driving of the vehicle can be avoided, the reverse rotation of the screw rod 6 caused by the vibration is avoided, and the loosening of the special-shaped fastener is avoided, so that the stability of the fastening of the inner plate of the door is improved;

[0036] The protrusion 3 in the shape of a right trapezoid is arranged, the gasket 2 is conveniently inserted into the fastening hole when the gasket 2 is not expanded, when the gasket 2 is expanded outward and abutted against the inner wall of the fastening hole through the protrusion 3, the friction is increased through the protrusion 3, the gasket 2 is prevented from moving out of the inside of the fastening hole, when the clamping blocks 16 are away from each other, the stop plate 14 is moved by the supporting rod 12 against the elastic force of the spring 15, when the clamping blocks 16 are loosened, the clamping blocks 16 are reset by the spring 15, through the elastically connected clamping blocks 16, when the special-shaped fastener is disassembled later, the clamping blocks 16 are directly removed, and the special-shaped fastener is normally disassembled, when the clamping blocks 16 are inserted into the first clamping groove 9 and the second clamping groove 10, the spring 15 elastic force of the clamping blocks 16 is combined with the friction of the inner wall of the first clamping groove 9 and the second clamping groove 10, and the clamping blocks 16 are prevented from moving out of the inside of the first clamping groove 9 and the second clamping groove 10 due to vibration.

[0037] The contents not described in detail in the specification belong to the prior art known by the person skilled in the art.

[0038] Although the utility model has been described in detail with reference to the foregoing embodiments, the skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A contoured fastener for a vehicle door inner panel, characterized by, Including the backing plate (1), the backing plate (1) bottom equidistant fixed connection has the lining piece (2), the outer side of the lining piece (2) equidistant fixed connection has the protruding block (3), wherein, The middle part of the backing plate (1) is penetrated by a threaded hole (4), the inner wall of the threaded hole (4) and the lining piece (2) are provided with internal threads (5), the threaded hole (4) is penetrated by a screw rod (6), the top of the screw rod (6) is fixedly connected with a screw rod head (7), the screw rod (6) between the screw rod head (7) and the backing plate (1) is sleeved with a disc spring (8); The top of the backing plate (1) is symmetrically provided with a first clamping groove (9), the bottom of the screw rod head (7) is provided with a second clamping groove (10) corresponding to the first clamping groove (9), the top of the screw rod head (7) is provided with a support (11), the both sides of the support (11) are elastically connected with a supporting rod (12), one end of the supporting rod (12) is fixedly connected with a clamping block (16) corresponding to the first clamping groove (9) and the second clamping groove (10).

2. The irregularly shaped fastener for a door inner panel according to claim 1, characterized in that: The cross section of the protruding block (3) is a right trapezoid, and the inclined surface of the protruding block (3) is downward.

3. The irregularly shaped fastener for a door inner panel according to claim 1, wherein: The outer diameter of the disc spring (8) is greater than the inner diameter of the threaded hole (4), and the inner diameter of the disc spring (8) is greater than the outer diameter of the screw rod (6).

4. The irregularly shaped fastener for a door inner panel according to claim 1, wherein: The both sides of the support (11) are symmetrically provided with spring grooves (13) in the inside, one end of the supporting rod (12) in the spring groove (13) is fixedly connected with a baffle (14), the outer side of the supporting rod (12) in the spring groove (13) is sleeved with a spring (15).

5. A contoured fastener for a door inner panel according to claim 4, wherein: The both ends of the spring (15) respectively abut against the inner wall of the spring groove (13) and the baffle (14), and the baffle (14) is elastically connected with the support (11) through the spring (15).

6. A contoured fastener for a door inner panel according to claim 1, wherein: The width of the clamping block (16) is consistent with the width of the first clamping groove (9) and the second clamping groove (10).

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