CN211343634U - Fastener for inner and outer ornaments of automobile - Google Patents

Abstract

The utility model discloses an inside and outside gadget fastener of car relates to the fastener, aims at solving the not hard up its technical scheme main points of bolt gasket and is: including the bolt head and with bolt head integrated into one piece's screw rod, the external screw thread has been seted up on the periphery wall of screw rod, the cover is equipped with spring washer on the screw rod, the annular has been seted up on the lower bottom surface of bolt head, a plurality of strengthening ribs that distribute around screw rod annular array of fixedly connected with in the annular, there is the space between a plurality of strengthening ribs all and the interior bottom surface of annular, spring washer's upper end fixedly connected with supports the clamping ring, support and set up the income groove of mutual intercommunication on the clamping ring and support the clamping ring, the vertical last top surface of seting up at supporting the clamping ring in the income groove, it is used for the. The utility model discloses have the positioning action of reinforcing spring washer and bolt head to prevent that spring washer from damaging because of the location is inaccurate, and then preventing spring washer's locking.

Description

Fastener for inner and outer ornaments of automobile

Technical Field

The utility model relates to a fastener, more specifically say, it relates to a locking inside and outside gadget fastening bolt of car.

Background

To solve the loosening problem of the threaded fastener, scientists and engineers in many countries of the world have conducted a great deal of experimentation and research, and the key to the loosening problem of the threaded fastener is the structural shape of the thread. Therefore, the locknut which takes the increase of the static friction force as the technical principle solves the trouble that a product cannot normally run due to the looseness of the fastener by a plurality of enterprises. However, some heavy industry enterprises cannot meet the requirement, and the anti-loosening effect of the anti-loosening nut can meet the requirement of the enterprises under the states of static low vibration, light load and constant speed. However, the complete anti-loosening effect cannot be achieved under the dynamic strong vibration, high load and positive and negative motion states, only the time for the nut and the bolt to be automatically loosened is prolonged, and finally scientists break through the traditional anti-loosening principle of utilizing friction force, change the anti-loosening principle into the latest anti-loosening principle of combining expansion force and friction force, and design the spring washer. However, because the inner diameter of the spring washer is larger than the outer diameter of the screw rod, the spring washer can deviate from the center axes of the bolt head and the screw rod due to looseness in the fastening process of the bolt head, so that the spring washer is broken under the torsion action of the bolt head, and the spring washer loses the tension force and the rebound force to lose the anti-loosening effect.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an inside and outside gadget fastener of car, through set up on the spring washer with the support ring of bolt head joint, realize the location to the spring washer, and then prevent not hard up and the rupture of spring washer, strengthen the holistic life of bolt.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an inside and outside gadget fastener of car, including the bolt head and with bolt head integrated into one piece's screw rod, the external screw thread has been seted up on the periphery wall of screw rod, the cover is equipped with spring washer on the screw rod, the annular has been seted up on the lower bottom surface of bolt head, fixedly connected with is a plurality of strengthening ribs around the annular array distribution of screw rod in the annular, a plurality of strengthening ribs all with the annular in the bottom surface between have the space, spring washer's upper end fixedly connected with supports the clamping ring, support and set up the groove of advancing of mutual intercommunication on the clamping ring and support the indent, advance the vertical last top surface of seting up at supporting the clamping ring in the.

Through adopting above-mentioned technical scheme, set up on the spring washer have into the groove and support the indent support the clamp ring be equipped with in the bolt head with the strengthening rib that the annular bottom surface has the space, establish the spring washer cover on the screw rod earlier during the use, and make the strengthening rib be located and support the indent and carry out the prepositioning, then rotate the bolt head together with the spring washer, because the spring washer is spiral, including the strengthening rib is increasing at the thickness that is close space one side gradually, thereby make the center of rotatory spring washer can accurately align with the rotation center of bolt head, and at the whole in-process with the installed part fastening of bolt, play spacing effect to the spring washer all the time.

The utility model discloses further set up to: the pressing groove is formed in the side wall of the feeding groove, the forming direction of the pressing groove is the same as the rotating direction of the external thread, and the pressing groove and the feeding groove are L-shaped.

Through adopting above-mentioned technical scheme, be the support indent and the groove of advancing of L type through the setting for spring washer at first need get into through vertical groove of advancing, then in making the strengthening rib slide in the support indent through rotatory spring washer, because support the indent and set up the direction and the same with the soon of external screw thread, thereby make the in-process spring washer of screwing at the bolt head can not break away from with the bolt head.

The utility model discloses further set up to: the groove width of the pressing groove is gradually reduced from the groove inlet to one side far away from the groove inlet.

Through adopting above-mentioned technical scheme, through setting up the groove that supports that the groove width reduces gradually for the bolt head is spacing the ring that supports on the spring washer can be along with the rotation of bolt head more and more tight on supporting the groove always at rotatory in-process.

The utility model discloses further set up to: the reinforcing ribs are connected with two reinforcing rings together, the two reinforcing rings are coaxially arranged, the radius of the two reinforcing rings is gradually increased, and the reinforcing rings are fixedly connected with the bottom surfaces of the annular grooves.

Through adopting above-mentioned technical scheme, through setting up the beaded finish that two radiuses are different, strengthen the holistic intensity of bolt when increasing bolt head and splice bar connectivity.

The utility model discloses further set up to: the mounting groove that forms between two beaded finish, the thickness that supports the clamping ring is less than the groove width of mounting groove.

Through adopting above-mentioned technical scheme, the groove width through restriction mounting groove is greater than the thickness that supports the clamping ring to can further guarantee that the center of spring washer aligns with the center of bolt head, further inject the position of spring washer.

The utility model discloses further set up to: the inner bottom surface of the ring groove is fixedly connected with a rubber pad, and when the abutting ring is clamped with the bolt head, the rubber pad and the abutting ring are in abutting connection.

By adopting the technical scheme, the rubber ring is fixedly connected to the inner bottom surface of the annular groove of the bolt head, so that the upper end of the pressing ring can be abutted and pressed to be connected with the rubber ring when the pressing ring is installed in the annular groove, the friction force is increased, and meanwhile, the reverse rotation of the spring washer is further ensured, and the relative displacement of the spring washer and the bolt head is limited.

To sum up, the utility model discloses following beneficial effect has:

1. through the reinforcing ribs arranged in the bolt head and the pressing rings clamped with the reinforcing ribs arranged on the spring washer, the spring washer and the bolt head are accurately positioned, and meanwhile, the spring washer cannot slide on the lower end face of the bolt head, so that the integral positioning and service life of the bolt are prolonged;

2. through setting up strengthening rib and beaded finish, realize improving the connectivity and the intensity of screw rod and bolt head, two beaded finishes can be fixed a position the circumference position of spring washer simultaneously again to further the location and the fixed effect of spring washer with the bolt head have been improved.

Drawings

Fig. 1 is a first perspective view of the present invention;

FIG. 2 is a second perspective view of the present invention;

fig. 3 is a first schematic structural view of a bolt head and a screw rod in the present invention;

fig. 4 is a second schematic structural view of the bolt head and the screw rod of the present invention;

FIG. 5 is a cross-sectional view A-A of FIG. 4;

FIG. 6 is an enlarged view of portion A of FIG. 5;

fig. 7 is a schematic structural view of the middle washer of the present invention.

In the figure: 1. a bolt head; 2. a screw; 3. an external thread; 4. a spring washer; 5. a ring groove; 6. reinforcing ribs; 7. a reinforcement ring; 8. mounting grooves; 9. a rubber pad; 10. pressing the ring; 11. entering a groove; 12. and pressing the groove.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

An automobile interior and exterior trim fastener is shown in figures 1 to 7 and comprises a bolt head 1 and a screw rod 2 integrally formed with the bolt head 1, wherein external threads 3 are formed on the outer peripheral wall of the screw rod 2, a spring washer 4 is sleeved on the screw rod 2, a ring groove 5 is formed in the lower bottom surface of the bolt head 1, the inner diameter of the ring groove 5 is the same as the outer diameter of the screw rod 2, three reinforcing ribs 6 distributed around the screw rod 2 in an annular array are welded in the ring groove 5, gaps for clamping and entering of a pressing ring 10 exist between the three reinforcing ribs 6 and the inner bottom surface of the ring groove 5, a pressing ring 10 is integrally formed at the upper end of the spring washer 4, a mutually communicated L-shaped inlet groove 11 and a pressing groove 12 are formed in the pressing ring 10, the inlet groove 11 is vertically formed in the upper top surface of the pressing ring 10, the pressing groove 12 is formed in the side wall of the inlet groove 11, the groove width of the pressing groove 12 is gradually reduced from the inlet groove 11, the opening direction of the pressing groove 12 is the same as the rotating direction of the external thread 3, the groove 11 is used for the vertical entering of the reinforcing rib 6, and the pressing groove 12 is used for limiting the reinforcing rib 6 when the spring washer 4 rotates.

A plurality of strengthening ribs 6 are connected with two strengthening rings 7 jointly, and two coaxial settings of strengthening ring 7 and radius increase gradually, and strengthening ring 7 welds with the bottom surface of annular 5, and the mounting groove 8 that forms between two strengthening rings 7 supports the groove width that the thickness of pressing ring 10 is less than mounting groove 8, and it has the cushion to bond on the interior bottom surface of annular 5, when supporting pressing ring 10 and bolt head 1 joint, the cushion 9 supports with pressing ring 10 and presses and be connected.

In the concrete implementation, when the bolt is required to be fixed with a connected piece, firstly, the spring washer 4 is sleeved on the screw rod 2 and can slide on the screw rod 2, when the spring washer 4 slides to the position near the bolt head 1, the spring washer 4 is rotated, so that the groove 11 on the pressing ring 10 on the spring washer 4 can be aligned with the reinforcing rib 6, and the pressing ring 10 can be aligned with the installation groove 8 between the two connection rings, then the spring washer 4 is pushed to the direction close to the bolt head 1, so that the reinforcing rib 6 can enter the bottom end of the groove 11 along the vertically-arranged groove 11, then the spring point washer is rotated again, so that the reinforcing rib 6 can move along the direction of the pressing groove 12, as the groove width of the pressing groove 12 is gradually reduced, so that the reinforcing rib 6 is increasingly tightened when the spring washer 4 rotates, then the bolt head 1 is rotated, so that the screw rod 2 is connected with the connected piece along the rotation direction of the external thread 3, because the screwing direction of the external thread 3 is the same as the opening direction of the abutting groove 12, the spring washer 4 can limit in the abutting groove 12 in the rotation process of the bolt head 1 until the bolt head 1 rotates until the lower bottom surface of the spring washer 4 contacts with a connected piece. Because the utility model discloses set up strengthening rib 6 that can the joint and support clamping ring 10 to detached bolt head 1 and spring washer 4 to make bolt head 1 have the connectivity with spring washer 4, support the pressing groove 12 that supports on the pressing ring 10 to the pressure simultaneously and set up the groove width that the same and reduce gradually of section of thick bamboo external thread 3 revolves, so make spring washer 4 can carry on spacingly and along with bolt head 1 rotate more closely along with rotatory direction all the time at the rotatory in-process of bolt head 1.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides an inside and outside gadget fastener of car, includes bolt head (1) and screw rod (2) with bolt head (1) integrated into one piece, external screw thread (3) have been seted up on the periphery wall of screw rod (2), the cover is equipped with spring washer (4) on screw rod (2), its characterized in that: annular (5) have been seted up on the lower bottom surface of bolt head (1), fixedly connected with is a plurality of strengthening ribs (6) around screw rod (2) annular array distribution in annular (5), and is a plurality of strengthening rib (6) all with have the space between the interior bottom surface of annular (5), the upper end fixedly connected with of spring washer (4) supports clamping ring (10), support and set up the groove (11) of advancing and support clamping groove (12) of mutual intercommunication on clamping ring (10), advance the vertical top surface of seting up at supporting clamping ring (10) in groove (11), it is used for strengthening rib (6) to get into to advance groove (11), it is used for spacing strengthening rib (6) to support clamping groove (12).

2. The fastener for interior and exterior trim parts of an automobile according to claim 1, wherein: the pressing groove (12) is formed in the side wall of the feeding groove (11), the forming direction of the pressing groove (12) is the same as the rotating direction of the external thread (3), and the pressing groove (12) and the feeding groove (11) are L-shaped.

3. The fastener for interior and exterior trim parts of an automobile according to claim 2, wherein: the groove width of the abutting groove (12) is gradually reduced from the groove inlet (11) to one side far away from the groove inlet (11).

4. The fastener for interior and exterior trim parts of an automobile according to claim 1, wherein: a plurality of strengthening rib (6) are connected with two beaded finish (7), two the beaded finish (7) is coaxial to be set up and the radius crescent, the bottom surface fixed connection of beaded finish (7) and annular (5).

5. The fastener for interior and exterior trim parts of an automobile according to claim 4, wherein: two mounting groove (8) that form between beaded finish (7), the thickness of pressing ring (10) is less than the groove width of mounting groove (8).

6. The fastener for interior and exterior trim parts of an automobile according to claim 1, wherein: fixedly connected with rubber pad (9) on the interior bottom surface of annular (5), work as when support clamping ring (10) and bolt head (1) joint, rubber pad (9) support with support clamping ring (10) and press and be connected.

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