CN218542895U - Bolt protective cap - Google Patents

Abstract

The utility model relates to a machine part field, concretely relates to bolt protective cap, it includes the barrel, the internal diameter size of barrel is corresponding with the bolt head, the barrel is uncovered downwards, be equipped with spacing muscle on the inner wall of barrel, spacing muscle presses the lateral part at the bolt head, spacing muscle extends from top to bottom, the top height of spacing muscle risees from making progress gradually down, the bottom width of spacing muscle is widened gradually from making progress down, the top width of spacing muscle is less than the bottom, spacing muscle is the spiral muscle, the spiral muscle spiral upwards extends, the spiral muscle is equipped with many, many spiral muscle are from top to bottom mutual intervals, many spiral muscle are discontinuous each other, the upper portion of barrel is equipped with the open protection casing of closed barrel upside, the protection casing is the upwards uplift of hemisphere shape. The bolt protective cap can protect the bolt, prevent the head of the bolt from being corroded, and is matched with the bolt protective cap tightly, so that the bolt protective cap is convenient to disassemble.

Description

Bolt protective cap

Technical Field

The utility model relates to a machine part field, concretely relates to bolt protective cap.

Background

The bolt is used in each field of mechanical industry, uses the tractor as an example, uses on the tractor to have a large amount of bolts, is responsible for fastening each accessories, and current bolt includes screw rod part and bolt head, is equipped with the screw thread of being responsible for the connection on the screw rod part, and the bolt head is responsible for cooperating the spanner, and wherein the screw rod head mainly includes hexagonal prism shape and two kinds of cylindrical forms, is equipped with the hexagonal hole in the cylindrical screw rod head, can mutually support with interior hexagonal plate.

Because the tractor often travels in the farmland, the bolt on the wheel hub often receives muddy water or other pollutant erosion, when the bolt receives the erosion back, easily takes place to rust and warp, and the bolt head receives the erosion back, can't form effectual cooperation with the spanner again, for the difficulty that the bolt dismantlement caused, await the improvement.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above problem provide a can prevent that the bolt from receiving the bolt protective cap of erosion.

In order to achieve the above object, the utility model discloses a bolt protective cap, including the barrel, its structural feature is: the internal diameter size of barrel is corresponding with the bolt head, and the barrel is uncovered downwards, is equipped with spacing muscle on the inner wall of barrel, and spacing muscle presses the lateral part of bolt head, and spacing muscle extends from top to bottom, and the top height of spacing muscle risees from upwards gradually down, and the bottom width of spacing muscle is widened from upwards gradually down, and the top width of spacing muscle is less than the bottom.

The bolt protective cap of this structure corresponds screw rod head and is columniform hexagon socket head cap screw, after the bolt installation targets in place, the downside through the bolt protective cap is uncovered, withhold the bolt protective cap on the bolt head, bolt protective cap and bolt head are interference fit, spacing muscle is then pressed the lateral part of bolt head, prevent that bolt protective cap and bolt from breaking away from the cooperation, under spacing muscle extrusion, the cooperation degree of depth of bolt protective cap and bolt head is more dark, bolt protective cap and bolt head cooperation are inseparabler, under the protection of bolt protective cap, the bolt head can't contact muddy water or other pollutants, thereby prevent that the bolt from receiving the erosion.

The first implementation structure of spacing muscle, spacing muscle are the spiral muscle, and the spiral muscle spiral upwards extends, and the spiral muscle is equipped with many, and many spiral muscle are from top to bottom spaced each other, and many spiral muscle are discontinuous each other. When the hub rotates, if the bolt protective cap and the bolt rotate relatively, under the action of the spiral rib, the bolt protective cap can further increase the matching depth with the bolt head, so that the bolt protective cap and the bolt are matched more tightly.

Preferably, the spiral rib installed on the left side hub is screwed to the right side, and the spiral rib installed on the right side hub is screwed to the left side. When the vehicle advances, the left hub rotates anticlockwise, and the bolt protective cap is matched with the bolt more tightly under the matching of the spiral rib.

The second implementation structure of the limiting rib is characterized in that the limiting rib is a straight rib, and the straight rib vertically extends from bottom to top. The straight rib has simple structure and convenient manufacture.

In order to facilitate the detachment of the bolt protective cap, the upper part of the cylinder body is provided with a protective cover for closing the upper opening of the cylinder body, and the protective cover is in a hemispherical shape and is raised upwards. The bolt protective cap is made of plastic, the protective cap can be broken when the bolt is detached, and the broken bolt protective cap can be peeled off from the bolt after the bolt is detached.

In order to further prevent the bolt protective cap from falling off the bolt, the inner wall of the cylinder body is provided with a blocking edge, the blocking edge is positioned at the lower end of the cylinder body and is annular, and the blocking edge extends in the radial direction of the cylinder body.

In order to facilitate the installation of the bolt protective cap, the blocking edge passes over the bolt, the lower side surface of the blocking edge is an inclined guide surface, and the guide surface extends from the top end of the blocking edge to the inclined lower side direction in an inclined manner.

Preferably, the upper side surface of the blocking edge is an inclined limiting surface, and the limiting surface extends obliquely from the top end of the blocking edge to the inclined upper side direction.

In order to facilitate the matching of bolt protection and the bolt head, the lower side of the barrel is provided with a positioning table which is an upwards sunken concave table, and the size of the positioning table is larger than that of the bolt head.

The stop edge is located on the upper side of the positioning table with respect to the mutual position of the stop edge and the positioning table.

To sum up, the beneficial effects of the utility model reside in that: under the protection of the bolt protective cap, the head of the bolt cannot contact muddy water or other pollutants, so that the bolt is prevented from being corroded. The bolt protective cap of the structure adopts two different forms of the spiral rib and the straight rib, so that the bolt protective cap is matched with the bolt more closely, the protective cover at the top is convenient for disassembling the bolt, and the bolt protective cap is separated from the bolt.

Drawings

FIG. 1 is a schematic structural view of a first embodiment of a spacing rib;

FIG. 2 is a schematic view of a portion of the enlarged structure of point A in FIG. 1;

FIG. 3 is a schematic bottom view of the structure of FIG. 1;

FIG. 4 is a schematic structural view of a second embodiment of a spacing rib;

fig. 5 is a side view of the spiral protective cap.

In the figure: barrel 1, spiral muscle 2, keep off along 3, location platform 4, straight muscle 5, spigot surface 6, spacing face 7, protection casing 8.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

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 one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

The utility model provides a bolt protective cap, includes barrel 1, and the internal diameter size of barrel 1 is corresponding with the bolt head, and barrel 1 is uncovered downwards, is equipped with spacing muscle on the inner wall of barrel 1, and spacing muscle presses the lateral part at the bolt head, and spacing muscle extends from top to bottom, and the top height of spacing muscle is followed and is upwards rised gradually down, and the bottom width of spacing muscle is followed and is upwards widened gradually down, and the top width of spacing muscle is less than the bottom. Referring to the attached drawing 1, the head of the bolt protective cap corresponding to the screw is a cylindrical hexagon socket bolt, when the bolt is installed in place, the bolt protective cap is buckled on the bolt head through the opening on the lower side of the bolt protective cap, the bolt protective cap and the bolt head are in interference fit, the limiting rib is pressed against the side of the bolt head to prevent the bolt protective cap and the bolt from being separated from being matched, under the extrusion of the limiting rib, the deeper the matching depth of the bolt protective cap and the bolt head is, the more closely the bolt protective cap and the bolt head are matched, and under the protection of the bolt protective cap, the bolt head cannot contact muddy water or other pollutants, so that the bolt is prevented from being corroded.

Referring to fig. 1, regarding the first implementation structure of spacing muscle, spacing muscle is spiral muscle 2, and 2 spirals of spiral muscle are upwards extended, and spiral muscle 2 is equipped with many, and many spiral muscle 2 are from top to bottom mutual interval, and many spiral muscle 2 are discontinuous each other. When the hub rotates, if the bolt protective cap and the bolt rotate relatively, under the action of the spiral rib 2, the bolt protective cap can further increase the matching depth with the bolt head, so that the bolt protective cap and the bolt are matched more closely. The spiral rib 2 installed on the left side hub is in right-hand thread direction, and the spiral rib 2 installed on the right side hub is in left-hand thread direction. When the vehicle advances, the left hub rotates anticlockwise, and the bolt protective cap and the bolt are matched more tightly under the matching of the spiral rib 2.

Referring to fig. 4, regarding the second implementation structure of the limiting rib, the limiting rib is a straight rib 5, and the straight rib 5 vertically extends from bottom to top. The straight ribs 5 have simple structure and convenient manufacture.

Referring to fig. 1 and 5, in order to facilitate the detachment of the bolt protection cap, a protection cover 8 for closing an upper opening of the cylinder 1 is disposed at the upper portion of the cylinder 1, and the protection cover 8 is raised upward in a hemispherical shape. The bolt protective cap is made of plastic, when the bolt is disassembled, the protective cap 8 is broken, and after the bolt is disassembled, the broken bolt protective cap can be stripped from the bolt.

Referring to fig. 2 and 3, in order to further prevent the bolt protection cap from falling off the bolt, a blocking edge 3 is arranged on the inner wall of the barrel 1, the blocking edge 3 is located at the lower end of the barrel 1, the blocking edge 3 is in a ring shape, and the blocking edge 3 extends in the radial direction of the barrel 1.

Referring to fig. 2, in order to facilitate the installation of the bolt protecting cap, the stop edge 3 goes over the bolt, and the lower side surface of the stop edge 3 is an inclined guide surface 6, and the guide surface 6 extends from the top end of the stop edge 3 to the inclined lower side direction. The upper side surface of the blocking edge 3 is an inclined limiting surface 7, and the limiting surface 7 extends obliquely from the top end of the blocking edge 3 to the oblique upper side direction.

Referring to fig. 2, in order to facilitate the bolt protection and the bolt head matching, a positioning table 4 is arranged on the lower side of the cylinder 1, the positioning table 4 is an upward concave table, and the size of the positioning table 4 is larger than that of the bolt head. With regard to the mutual position of the ledge 3 and the positioning table 4, the ledge 3 is located on the upper side of the positioning table 4.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. The utility model provides a bolt protective cap, includes barrel (1), its characterized in that, the internal diameter size of barrel (1) is corresponding with the bolt head, and barrel (1) is uncovered downwards, is equipped with spacing muscle on the inner wall of barrel (1), and spacing muscle presses the lateral part at the bolt head, and spacing muscle extends from top to bottom, and the top height of spacing muscle is from upwards rising gradually down, and the bottom width of spacing muscle is from upwards broadening gradually down, and the top width of spacing muscle is less than the bottom.

2. The bolt-protecting cap as claimed in claim 1, wherein the position-limiting rib is a spiral rib (2), the spiral rib (2) extends spirally upward, the spiral rib (2) is provided with a plurality of spiral ribs (2), the plurality of spiral ribs (2) are spaced from each other up and down, and the plurality of spiral ribs (2) are discontinuous from each other.

3. The bolt-protecting cap as set forth in claim 1, wherein the spiral rib (2) installed on the left-side hub is rotated in a right-hand direction, and the spiral rib (2) installed on the right-side hub is rotated in a left-hand direction.

4. The bolt-protecting cap as set forth in claim 1, wherein the stopper rib is a straight rib (5), and the straight rib (5) extends vertically from below to above.

5. The bolt-protecting cap as set forth in claim 1, wherein the upper portion of the cylinder (1) is provided with a shield (8) closing the upper opening of the cylinder (1), the shield (8) being bulged upward in a hemispherical shape.

6. The bolt-protecting cap as claimed in claim 1, wherein the barrel (1) is provided on its inner wall with a rim (3), the rim (3) being located at the lower end of the barrel (1), the rim (3) having a ring shape, the rim (3) extending in the radial direction of the barrel (1).

7. The bolt-protecting cap as claimed in claim 6, wherein the lower side of the ledge (3) is an inclined guide surface (6), and the guide surface (6) extends obliquely from the top end of the ledge (3) to the obliquely lower side.

8. The bolt protecting cap as claimed in claim 6, wherein the upper side of the retaining edge (3) is an inclined stopper surface (7), and the stopper surface (7) is inclined from the top end of the retaining edge (3) toward the inclined upper side.

9. The bolt protecting cap according to claim 6, wherein the lower side of the barrel (1) is provided with a positioning table (4), the positioning table (4) is an upwardly concave table, and the size of the positioning table (4) is larger than that of the bolt head.

10. Bolt protection cap according to claim 9, characterized in that the stop edge (3) is located on the upper side of the positioning table (4).

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