Rotation stopping bolt and bolt connecting structure

Abstract

The utility model provides a rotation stopping bolt which comprises a rod portion with threads and a head portion arranged at one end of the rod portion. At least one tenon part fixed with the outer wall and / or the head part is arranged on the outer side of one end, close to the head part, of the rod part. The utility model discloses a bolt connecting structure which comprises a connecting hole, a bolt and a nut matched with the bolt. Tenon grooves are formed in the inner side walls of the connecting holes; the bolt is the rotation stopping bolt, the tenon portion of the bolt is located in the tenon groove, and the rod portion of the bolt penetrates through the connecting hole to be screwed into the nut. The bolt can be prevented from rotating without clamping the head of the bolt with the help of external force, and convenience and high efficiency of bolt installation are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bolt connection technical field, concretely relates to a kind of rotation-stopping bolt and bolt connection structure. BACKGROUND

[0002] Two parts with through hole are fastened and connected by bolt, and this connection form is called bolt connection. Since this connection mode, when nut is rotated from bolt, the two parts can be separated, so bolt connection belongs to one kind of detachable connection mode. And the bolt structure of the present, when fastening and connecting, it needs to be fixed with external force the head of bolt, so that it no longer rotates, then nut can be tightened. SUMMARY

[0003] In order to solve the technical problems in the background art, the utility model provides a kind of rotation-stopping bolt and bolt connection structure.

[0004] The utility model provides a kind of rotation-stopping bolt, comprising: the threaded rod portion and the head portion being set in the rod portion one end;

[0005] The outer side of the rod portion near the head portion one end is equipped with at least one falcon part fixed with its outer wall and / or head portion.

[0006] Preferably, the falcon part is fixed to the outer wall of the rod portion.

[0007] Preferably, the end of the falcon part near the head portion is fixed with the head portion.

[0008] Preferably, the outer wall surface of the falcon part is located on the inside of the head portion or is located on the same plane with the circumferential wall of the head portion.

[0009] Preferably, the falcon part is provided with two, and the two falcon parts are oppositely arranged on the two sides of the rod portion.

[0010] Preferably, the falcon part is provided with more than two, and is arranged on the outer periphery of the rod portion with circumferential spacing.

[0011] Preferably, on the circumference of the rod portion, the spacing between any two adjacent falcon parts is equal.

[0012] The utility model discloses a kind of bolt connection structure, comprising: connecting hole, bolt and the nut matched with bolt;

[0013] The inner side wall of connecting hole is provided with falcon groove;The bolt is the rotation-stopping bolt described above, and its falcon part is located in falcon groove, and its rod portion is rotated into nut and passes through connecting hole.

[0014] In the utility model, a falcon portion is provided on the outer side of one end of the rod portion near the head portion. When connecting parts, a falcon groove matching the falcon portion is pre-formed on the inner side wall of the hole through which the rod portion passes so as to allow the falcon portion to be engaged. When the rod portion of the bolt passes through the hole of the part, the falcon portion is directly inserted into the falcon groove, so that the bolt cannot rotate in the circumferential direction. At this time, the threaded connection can be completed by directly screwing the nut into the rod portion. The stop bolt can prevent the bolt from rotating without the need to clamp the head of the bolt with external force, thereby achieving convenience and efficiency in bolt installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a rotation-stopping bolt proposed in the present utility model;

[0016] Figure 2 This is a schematic diagram of the anti-rotation bolt proposed by the present invention moving away from the parts when connecting them;

[0017] Figure 3 This is an exploded view of a bolt connection structure proposed by the present invention;

[0018] Figure 4 This is an assembly drawing of a bolt connection structure proposed by the utility model. DETAILED DESCRIPTION

[0019] Reference Figure 1-2 The present invention provides a stop bolt comprising a threaded shank 1 and a head 2 disposed at one end of the shank 1. A portion 3 is provided on the outer side of the shank 1 near one end of the head 2, secured to the outer wall of the shank 1 and / or the head 2. When connecting parts, a groove 4 is pre-formed on the inner sidewall of the hole into which the shank 1 is inserted, which matches the portion 3 and allows the portion 3 to engage. When the shank 1 of the bolt passes through the hole in the part, the portion 3 is directly inserted into the groove 4. The groove 4 and the portion 3 cooperate to prevent the stop bolt from rotating circumferentially. At this point, a nut 5 can be screwed directly into the shank 1 by one hand to complete the threaded connection of the parts.

[0020] As can be seen from the above, the stop bolt can prevent the bolt from rotating without the need for external force to clamp the head 2 of the bolt, thereby achieving convenience and efficiency in bolt installation.

[0021] Specifically, the ferrule portion 3 in this embodiment is fixed to the outer wall of the rod portion 1 , and one end of the ferrule portion 3 close to the head 2 is fixed to the head 2 to increase the compactness of the structure and the firmness of the ferrule portion 3 .

[0022] Furthermore, the head 2, the stem 1 and the falcon portion 3 can be processed in an integral molding manner or in a separate molding manner.

[0023] In addition, in this embodiment, the outer wall surface of the falcon portion 3 is located inside the peripheral wall of the head 2 or is located in the same plane as the peripheral wall of the head 2, so that the falcon portion 3 is inside the peripheral wall of the head 2 and does not protrude from the peripheral wall of the head 2.

[0024] In this embodiment, there are two or more falcon parts 3. When two falcon parts 3 are provided, the two falcon parts 3 are relatively arranged on both sides of the rod part 1. When there are more than two falcon parts 3, the falcon parts 3 are circumferentially spaced apart on the outer periphery of the rod part 1.

[0025] Furthermore, when more than two ferrule portions 3 are provided, the spacing between any two adjacent ferrule portions 3 in the circumferential direction of the rod portion 1 is equal, so that the ferrule portions 3 are evenly distributed outside the rod portion 1 .

[0026] Reference Figure 3-4 The utility model discloses a bolt connection structure, comprising: a connecting hole, a bolt and a nut 5 adapted to the bolt; a falcon groove 4 is opened on the inner side wall of the connecting hole; the bolt is the anti-rotation bolt described above, its falcon portion 3 is located in the falcon groove 4, and its rod portion 1 passes through the connecting hole and is screwed into the nut 5.

[0027] As can be seen from the above, in the present invention, a falcon portion 3 is provided on the outer side of one end of the rod portion 1 near the head portion 2. When connecting parts, a falcon groove 4 that matches the falcon portion 3 for the falcon portion 3 to be inserted into is pre-opened on the inner wall of the hole through which the rod portion 1 is inserted. When the rod portion 1 of the bolt passes through the hole of the part, the falcon portion 3 is directly inserted into the falcon groove 4, so that the bolt cannot rotate in the circumferential direction. At this time, the threaded connection can be completed by directly screwing the nut 5 into the rod portion 1. The stop bolt can prevent the bolt from rotating without the need to clamp the head 2 of the bolt with external force, thereby achieving convenience and efficiency in bolt installation.

[0028] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A stop bolt, characterized in that: include: A rod (1) with a thread and a head (2) arranged at one end of the rod (1); At least one falcon portion (3) is provided on the outer side of one end of the rod portion (1) close to the head portion (2) and is fixed to the outer wall of the rod portion and / or the head portion (2).

2. A rotation-stopping bolt according to claim 1, characterized in that: The falcon portion (3) is fixed to the outer wall of the rod portion (1).

3. The anti-rotation bolt according to claim 1, characterized in that: One end of the falcon portion (3) close to the head (2) is fixed to the head (2).

4. The anti-rotation bolt according to claim 1, characterized in that: The outer wall surface of the falcon portion (3) is located on the inner side of the peripheral wall of the head (2) or is located on the same plane as the peripheral wall of the head (2).

5. A rotation-stopping bolt according to any one of claims 1 to 4, characterized in that: Two falcon parts (3) are provided, and the two falcon parts (3) are arranged oppositely on both sides of the rod part (1).

6. A rotation-stopping bolt according to any one of claims 1 to 4, characterized in that: There are more than two falcon parts (3) and they are arranged at circumferential intervals on the outer periphery of the rod part (1).

7. The anti-rotation bolt according to claim 6, characterized in that: In the circumferential direction of the rod portion (1), the spacing between any two adjacent falcon portions (3) is equal.

8. A bolt connection structure, characterized in that: include: Connecting holes, bolts and nuts (5) adapted to the bolts; The inner wall of the connecting hole is provided with a falcon groove (4); the bolt is a stop bolt as described in any one of claims 1-7, its falcon portion (3) is located in the falcon groove (4), and its rod portion (1) passes through the connecting hole and is screwed into the nut (5).

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