CN101440839A - Single side mounting bolt connecting component, bolt gasket and mounting method thereof - Google Patents

Abstract

The invention discloses a one-side installation bolt connection piece, a bolt washer and an installation method thereof. The bolted connector includes a screw rod and a bolt head at one end of the screw rod, and the contour line of the cross section of the bolt head is a closed figure in the shape of concaves and convexes spaced apart. The bolt washer includes a base with holes, and columns on the base, and the columns are arranged on the base at intervals along the rotation plane. The bolted joint, the bolted gasket and the installation method of the above structure have broken through the structure and installation method of the traditional bolted joint and the gasket. It realizes that when installing bolts in blind holes, the installation operation can be completed on one side, and the bolt assembly can be easily disassembled many times. It solves the problem that the existing bolt structure cannot be disassembled and reused on the blind side, and at the same time, the structure of the connected parts is not damaged during disassembly. Extend the service life of the connected parts and greatly save costs.

Description

One-side installation bolted joint, bolt washer and installation method thereof

technical field

The invention belongs to connectors, in particular to a bolt connector.

Background technique

With the development of technology, various mechanical designs tend to be complicated. In design and on-site assembly, installation holes similar to process blind holes are often encountered, that is, when the screw part of the bolt is loaded from one side, hands or tools cannot be tightened from the other side (blind side). Since the installation of the existing bolted connector is to insert the bolt rod into the hole of the connected part, its essence is to install on both sides of the connected part. The reason is that the cross-section of the bolt head of the bolt is a polygonal shape, and it cannot pass through the holes of the connected parts. When encountering such a problem now, either change the design, or use expansion bolts or riveted bolts that cannot be easily disassembled, or pre-weld nuts on the blind side. And these methods all have certain drawbacks, and the biggest problem is that when disassembling, the structure of the connected parts must be destroyed, causing the connected parts to be unable to be used again.

Contents of the invention

The purpose of the present invention is to provide a mounting bolt connection that can be connected on one side of the connected part, and at the same time provide a single-side mounting bolt gasket and a method for installing the single-side bolt connection to solve the above problems.

One of the technical solutions of the present invention is to realize the one-side installation bolted connector technical solution: it includes a screw rod and a bolt head at one end of the screw rod, and the contour line of the cross section of the screw head is a closed figure with concave and convex shapes spaced apart.

The technical solution for realizing the second technical solution of the present invention is to install the bolt gasket on one side: it includes a base with holes, and uprights on the base, and the uprights are arranged on the base at intervals along the rotation plane.

The technical scheme of the installation method of the one-sided bolted joint that realizes the third technical scheme of the present invention is: it is to pass the bolt head of the bolt through the hole of the first connected piece, and the washer is arranged in the hole of the first connected piece, and the rotation The bolt makes the bolt head contact with the hole end face of the first connected part, passes the second connected part on the screw rod of the bolt, and connects the nut with the screw rod to realize the connection between the first connected part and the second connected part.

The contour line of the cross-section of the bolt head is a closed figure in the shape of concavo-convex at intervals, which includes a groove, and the side of the groove extends and connects to form a protrusion, and there are at least two grooves and protrusions respectively.

The spacer comprises a base with a hole, a column on the base with a hole, and the contour line of the cross section of the column does not exceed the contour line of the convex shape in the cross section of the bolt head; the contour line of the cross section of the column can be placed on the cross section of the bolt head Recessed within the outline of the shape.

That is, the post is stuck in the groove of the bolt head.

The outline of the hole of the first connected part corresponds to the outline of the bolt head of the bolt.

The outline of the cross-section of the base is a closed figure with concaves and convexes spaced apart. The uprights are set within the contour of the convex shape of the base cross-section.

The outline of the cross-section of the bolt head is a closed figure of a concave-convex shape at intervals, wherein the concave outline and the convex outline are oppositely set (forming grooves and bumps), and its effect is that when the bolt head passes through After the fixed hole on the connected part similar or identical to its contour line (when piercing, the concave-convex contour line of the bolt head is parallel to or coincident with the concave-convex contour line of the fixing hole), turn the bolt head to make the convex contour on the concave-convex contour line The line and concave contour line are misaligned with the convex contour line and concave contour line on the concave-convex contour line of the fixing hole on the connected part, that is, after turning the bolt head, the convex contour line (bump) on the concave-convex contour line and the connecting piece The end surface of the concave-convex contour on the concave-convex contour line of the fixing hole on the pad is in contact with the end surface of the hole (the bump is in contact with the end surface of the hole), so that the bolt head will not fall off from the fixing hole; Concave contour line (column is opposite to groove), and column just can be stuck in concave contour line (column is located in groove), so just can prevent bolt head from rotating.

The above-mentioned connection principle is: the shape of the bolt head, the fixing hole of the connected part and the column (locking block) of the gasket are similar. The post can coincide with the protruding shape of the bolt head or within the protruding shape of the bolt head so that it can pass through the fixing hole of the connected part, and the contour line of the post can be in line with the contour line of the concave shape of the bolt head Or fit a part of the contour line of the concave shape of the bolt head to realize the fixing of the bolt head. After inserting the bolt head and gasket (anti-loose block) into the fixing hole of the connected part, rotate the bolt along the axis of the bolt, and then pull the bolt along its axis in the direction opposite to the direction of penetration, so that the bolt head embeds in the anti-loose block In the flap, the bolt cannot move along its axis to the direction opposite to its penetration direction and rotate along its axis at an excessive angle. Finally, the purpose of fixing other parts on the outside of the anti-loosening block is achieved.

The bolt connection, bolt gasket (anti-rotation bolt gasket) and installation method of the above structure break through the structure and installation method of the traditional bolt connection and gasket. It starts to install from the bolt head and passes it through the After opening the hole of the first connecting piece, the second connected piece is passed on the bolt rod to realize the connection between the first connecting piece and the second connected piece. It realizes that when installing bolts in blind holes, the installation operation can be completed on one side, and the bolt assembly can be easily disassembled many times. It solves the problem that the existing bolt structure cannot be disassembled and reused on the blind side, and at the same time, the structure of the connected parts is not damaged during disassembly. Extend the service life of the connected parts and greatly save costs.

Description of drawings

Figure 1 Assembly diagram of the bolt group.

Fig. 2 Bottom view schematic diagram of bolt assembly.

Figure 3 Figure 2B-B cross-sectional view.

Figure 4 Figure 2C-C cross-sectional view.

Figure 5 Figure 2D-D cross-sectional view.

Figure 6 View of the outer torx bolt

Figure 7 is a schematic diagram of the contour line of the outer torx bolt head.

Figure 8 View of plum blossom anti-loosening pad.

Figure 9 is a schematic diagram of the outline of the plum blossom anti-loosening pad.

Figure 10 View of the bolted connector group.

Figure 11 Torx mounting holes in the first connector.

Figure 12 Assembly Instructions Figure 1.

Figure 13 Assembly Instructions Figure 2.

Figure 14 Assembly instructions for Figure 3.

Figure 15 Assembly Instructions Figure 4.

Figure 16 Assembly instructions for Figure 5.

Figure 17 Assembly instructions for Figure 6.

Figure 18 Assembly instructions for Figure 7.

Figure 19 Assembly instructions for Figure 8.

Figure 20 Assembly Instructions Figure 9.

in the picture

1: Torx bolt; 2: Torx anti-loosening block (i.e. bolt gasket installed on one side); 3: Standard part - nut; 4: Standard part - anti-loosening pad; 5: The second connected part; 6: The first A connected part - a part with a blind hole.

Detailed ways

This embodiment is used to explain the claims, and the scope of protection of the present invention is not limited to the description of the following structures. What those skilled in the art do based on the hints and instructions of the technical solutions proposed in this claim are different from those of this embodiment. Structures all belong to the protection scope of the present utility model.

The contour line of the cross section of the bolt head is a closed figure with concave and convex shapes spaced apart. The closed figure with concave and convex shapes of the bolt head can be a closed figure connected by multiple arcs and straight lines, or a closed figure connected by multiple arcs. A closed figure, or a closed figure connected by multiple straight line segments. The contour line of the cross-section of the bolt head is a closed figure in a concave-convex shape, which includes a groove. Three sets of projections and grooves, four sets of projections and grooves, five sets of projections and grooves, six sets of projections and grooves, or more sets of projections and grooves may be evenly spaced on the bolt head.

The outline of the cross-section of the base with holes of the gasket can be a closed figure in the shape of concave and convex at intervals, corresponding to the outline of the cross-section of the bolt head. The uprights are set within the contour of the convex shape of the base cross-section. This gasket can be completely set in the corresponding fixing hole on the first connected part.

The outline of the cross-section of the base of the gasket can also be a ring, and the column is arranged on the ring. This gasket only has the circular ring in the corresponding fixing hole on the first connected part, and the base is outside the fixing hole.

The torx bolt head of the torx bolt 1 will be described below. As shown in FIG. 6 , the bolt shank 7 ends with a bolt head 8 . As shown in FIG. 7 , the contour line of the cross section of the bolt head 8 is a closed figure in the shape of four concaves and convexes spaced apart. Correspondingly, four grooves 9 are formed, and the side connections between the grooves form four protrusions 10 .

One side installation bolt gasket (plum blossom anti-loosening block 2) as shown in Figure 8, comprises base 12, and base 12 is ring-shaped, and four columns 11 are evenly arranged on the base 12 along the circumference. As shown in Figure 9, the contour line of the column cross section does not exceed the contour line of the convex shape in the cross section of the bolt head, so that the column and the bolt head can pass through the hole of the first connected part, and the first connected part The shape of the hole is shown in Figure 11, which is the same as the Torx bolt head. The contour line of the column cross section can be placed in the contour line of the concave shape in the cross section of the bolt head, so that the bolt head can be stuck (as shown in Figure 10).

When installing:

The installation method is as follows:

Put the torx anti-loosening block 2 on the torx bolt 1, as shown in Figure 12;

Install the installed torx bolt 1 and torx anti-loosening block 2 into the torx hole of the fixing part 6 in the direction indicated by the arrow in the figure, as shown in Figure 13;

After installing the installed torx bolt 1 and torx anti-loosening block 2 into the torx hole of the fixed part 6, as shown in Figure 14;

As shown in FIG. 15 , the torx bolt 1 is rotated at a certain angle along the axial direction of the torx bolt 1 . (The angle is determined by the shape of the plum nut and bolt head);

As shown in Figure 16, after rotating the torx bolt 1 along its axis at a certain angle (the angle is: when the anti-loosening block does not move along its axis, the torx bolt can move along its axis direction as indicated by the arrow shown in the figure pointing to the angle of pulling in the direction), pull the plum blossom bolt 1 along the direction shown by the arrow in Figure 16;

As shown in Figure 17, after the Torx bolt 1 is pulled along its axis, as shown in the figure, after this action, the anti-loosening block restricts the rotation of the Torx bolt 1 around its axis, and the movement of the Torx bolt 1 in the direction indicated by the arrow;

After the torx bolt 1 is pulled along its axis, it is shown in Figure 18;

As shown in Figure 19, install the connected part 5, the anti-loosening washer 4 and the nut 3;

Tighten the nuts to complete the installation, as shown in Figure 20.

When disassembling, the sequence is reversed.

The installation method of the above-mentioned bolt is only to explain the technical solution of the present invention. In actual operation, the above-mentioned steps are not necessarily followed. The key is that after the bolt head passes through the corresponding hole of the first connected part, the gasket also passes through the first connected part. Rotate the bolt head so that the groove is opposite to the column of the gasket, and the column is stuck in the groove of the bolt head to prevent the bolt head from rotating.

The structure after installation is shown in Figure 1-5.

Claims (12)

1, a kind of one-sided construction bolt link, it comprises screw rod, the bolt head of screw rod one end, the profile line that it is characterized in that the cross section of described bolt head are the closed figures of concavo-convex shape separately.

2, one-sided according to claim 1 construction bolt link is characterized in that it also comprises pad, and pad comprises base with holes, and base upper pillar stand with holes, the profile line of column cross-section do not exceed the profile line that protrudes shape in the cross section of bolt head; The profile line of column cross-section can be placed in the profile line of recessed shape in the cross section of bolt head.

3, as one-sided construction bolt link as described in the claim 2, it is characterized in that column is located on the base at interval along plane of rotation.

4, as one-sided construction bolt link as described in the claim 3, it is characterized in that column is located on the base at interval along circumferential surface.

5, as one-sided construction bolt link as described in claim 1 or 2 or 3 or 4, the profile line that it is characterized in that the cross section of bolt head is the closed figure of concavo-convex shape separately, it comprises groove, and the side of groove connects and composes projection, at least two respectively of groove and projections.

6, a kind of one-sided construction bolt pad, it comprises base with holes, it is characterized in that the base upper pillar stand, column is located on the base at interval along plane of rotation.

7, as the one-sided construction bolt pad of claim 6, it is characterized in that column is located on the base at interval along circumferential surface.

8, as claim 6 or 7 one-sided construction bolt pads, the profile line that it is characterized in that described base cross section is the closed figure of concavo-convex shape separately.

9,, it is characterized in that column is located in the profile line of protrusion shape of base cross section as the one-sided construction bolt pad of claim 8.

10, as claim 6 or 7 one-sided construction bolt pads, the profile line that it is characterized in that described base cross section is an annulus.

11, a kind of one-sided bolt connection piece installation method, it is that bolt head with bolt passes in the hole of first connected piece, packing ring is located in the hole of first connected piece, rotating bolt makes bolt head contact with the hole end surface of first connected piece, second connected piece is through on the screw rod of bolt, nut is connected with screw rod, realizes being connected of first connected piece and second connected piece.

12,, it is characterized in that the profile line in hole of first connected piece is corresponding with the profile line of the bolt head of bolt as one-sided bolt connection piece installation method as described in the claim 11.

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