CN218235760U - Novel reamed hole check bolt - Google Patents

Abstract

The utility model relates to a coupling fastener technical field just discloses a new-type reamed hole check bolt, including spliced pole, hexagonal bolt head, the right-hand member fixedly connected with threaded rod of spliced pole, hexagonal bolt head fixed connection is in the left end of spliced pole, the antiskid tooth has been seted up to the right wall of hexagonal bolt head. This new-type reamed hole check bolt, through seting up anti-skidding tooth at the right wall of hexagonal bolt head, the quantity scope of its anti-skidding tooth is tooth to tooth, when the bolt gos into in the work piece back, the right wall of its hexagonal bolt head can hug closely on the surface of work piece, because set up anti-skidding tooth at the right wall of hexagonal bolt head, can improve the right wall of hexagonal bolt head and the frictional force on work piece surface, at the in-process that reamed hole check bolt and work piece were screwed up, the work piece is withstood to the anti-skidding tooth, difficult emergence is not hard up under power rotates to anti-skidding tooth surface is level and smooth, difficult wearing and tearing, this reamed hole check bolt can be difficult for taking place to become flexible under the effect of external force when screwing up, make to connect more tightly.

Description

Novel reamed hole check bolt

Technical Field

The utility model relates to a coupling fastener technical field specifically is a new-type reamed hole check bolt.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. The reamed hole bolt is a matched bolt, the front end of the reamed hole bolt is in a threaded connection effect, the rear end of the reamed hole bolt is not provided with a threaded part to play a positioning effect, and the reamed hole bolt is subjected to a pulling force and a shearing force in many times like a common bolt. The hole matched with the reamer is reamed out by the reamer when the hole is formed finally. The common bolt can bear transverse and axial loads, but the transverse load bearing method mainly depends on friction force caused by pre-tightening torque, the reamed hole bolt can also bear transverse and axial loads, the transverse load bearing method depends on the shear strength of the bolt, the transverse bearing capacity of the reamed hole bolt is far higher than that of the common bolt, and the axial bearing capacity of the reamed hole bolt is the same as that of the common bolt. The reamed holes are carried by the bolts and the shear and compression of the connected pieces. The diameter of the screw rod part is the same as the basic size of the screw rod hole, the screw rod part is in transition fit, when the connected parts slide relatively, the screw rod part is prevented from moving by the shearing resistance of the screw rod, so that only small pretightening force is needed, and the reaming screw rod is often used for a structure (transferring force by the shape of a part) utilizing friction to transfer force under the condition of vibration load.

When the conventional reamed hole bolt is used for connecting a special-shaped part, the common reamed hole bolt is easy to loosen under the action of external force and is not easy to fasten when being screwed down.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a new-type reamed hole check bolt to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a new-type reamed hole check bolt, includes spliced pole, hexagonal bolt head, the right-hand member fixedly connected with threaded rod of spliced pole, hexagonal bolt head fixed connection is in the left end of spliced pole, anti-skidding tooth has been seted up to the right wall of hexagonal bolt head, the hexagonal recess has been seted up on the right side of hexagonal bolt head.

Preferably, the right end fixedly connected with conical head of spliced pole, the thread tooth has been seted up to the outer wall of conical head, and the resistance that receives when its conical head sets up the reducible bolt and rotates in the plate makes the bolt more easily rotate into the plate, and the setting of its thread tooth can make things convenient for the bolt to rotate in the plate.

Preferably, the number of the anti-skidding teeth is 35 to 45, the height of the anti-skidding teeth is 0.5 to 1 mm, the anti-skidding teeth are arranged on the right side of the hexagonal bolt head, so that when the anti-skidding teeth are connected with a special-shaped part, the anti-skidding teeth can be used for buckling the workpiece in the process of screwing the reaming hole anti-loosening bolt and the workpiece, the workpiece is not easy to loosen under the action of power rotation, the surface of the anti-skidding teeth is smooth and not easy to wear, and the anti-skidding teeth are not easy to loosen under the action of external force during screwing, so that the connection is more tight.

Preferably, the depth of hexagonal recess is 2.5 millimeters to 3.5 millimeters, the length of spliced pole is 10 millimeters to 12 millimeters, and the setting of its hexagonal recess can make things convenient for the instrument to rotate the bolt.

Preferably, the length of the threaded rod is 2.5 cm to 3 cm, and the threaded rod is arranged to enable the bolt not to be easily pulled out of a workpiece.

Preferably, the length of conical head is 3 millimeters to 4 millimeters, and the setting of conical head can reduce the resistance that receives when the bolt rotates in the plate, makes the bolt more easily rotate into the plate, has improved the practicality of bolt.

Compared with the prior art, the utility model provides a new-type reamed hole check bolt. The method has the following beneficial effects:

this new-type reamed hole check bolt, through seting up the antiskid tooth at the right wall of hexagonal bolt head, the quantity scope of its antiskid tooth is tooth to tooth, when the bolt gos into in the work piece back, the right wall of its hexagonal bolt head can hug closely on the surface of work piece, because set up the antiskid tooth at the right wall of hexagonal bolt head, can improve the right wall of hexagonal bolt head and the frictional force on work piece surface, when connecting the dysmorphism piece, at the in-process of reamed hole check bolt and work piece tightening, the antiskid tooth withholds the work piece, difficult emergence is not hard up under power rotation, and the antiskid tooth surface is level and smooth, difficult wearing and tearing, this reamed hole check bolt, can be difficult for taking place not hard up under the effect of external force when screwing up, make the connection more firm, can effectively avoid reamed hole bolt when screwing up, the problem that easily takes place not hard up under the effect of vibration external force, improve and connect the fastening degree.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

fig. 2 is a schematic view of the right side structure of the hexagonal bolt head of the present invention;

fig. 3 is the left side schematic structural diagram of the hexagonal bolt head of the present invention.

In the figure: 1. connecting columns; 2. a hexagonal bolt head; 3. a threaded rod; 4. a conical head; 5. thread teeth; 6. anti-slip teeth; 7. a hexagonal groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a new-type reamed hole check bolt, includes spliced pole 1, hexagonal bolt head 2, and the right-hand member fixedly connected with threaded rod 3 of spliced pole 1, hexagonal bolt head 2 fixed connection in the left end of spliced pole 1, anti-skidding tooth 6 has been seted up to the right wall of hexagonal bolt head 2, and hexagonal recess 7 has been seted up on the right side of hexagonal bolt head 2.

The right end of the connecting column 1 is fixedly connected with a conical head 4, the outer wall of the conical head 4 is provided with thread teeth 5, the arrangement of the conical head 4 can reduce the resistance force of a bolt when the bolt rotates in a plate, so that the bolt can more easily rotate in the plate, the arrangement of the thread teeth 5 can facilitate the bolt to rotate in the plate, the number of the anti-skidding teeth 6 is 35 to 45, the height of the anti-skidding teeth 6 is 0.5 to 1 mm, when the anti-skidding teeth 6 are arranged on the right side of the hexagonal bolt head 2 and a special-shaped part is connected, the anti-skidding teeth 6 buckle a workpiece in the process of screwing the anti-skidding bolt and the workpiece in a reaming hole, the workpiece is not easy to loosen under the action of power, the surface of the anti-skidding teeth 6 is smooth and not easy to wear, the anti-skidding teeth can not easily loosen under the action of external force when being screwed, so that the connection is more firm, the depth of the hexagonal groove 7 is 2.5 to 3.5 mm, the length of the connecting column 1 is 10 to 12 mm, the arrangement of the hexagonal groove 7 can facilitate a tool to rotate a bolt, the length of the threaded rod 3 is 2.5-3 cm, the arrangement of the threaded rod 3 can ensure that the bolt is not easy to pull out in a workpiece, the length of the conical head 4 is 3-4 mm, the arrangement of the conical head 4 can reduce the resistance force of the bolt when the bolt rotates in a plate, so that the bolt can be more easily rotated into the plate, the practicability of the bolt is improved, the anti-skidding teeth 6 are arranged on the right wall of the hexagonal bolt head 2, the number range of the anti-skidding teeth 6 is 35-45 teeth, after the bolt is rotated into the workpiece, the right wall of the hexagonal bolt head 2 can be tightly attached to the surface of the workpiece, the anti-skidding teeth 6 are arranged on the right wall of the hexagonal bolt head 2, the friction force between the right wall of the hexagonal bolt head 2 and the surface of the workpiece can be improved, when a special-shaped part is connected, in the process of screwing the anti-loosing bolt and the workpiece, the work piece is buckled to 6 difficult emergence of antiskid tooth under power rotates not hard up to 6 surperficial smoothness of antiskid tooth, difficult wearing and tearing, this reamed hole check bolt can be difficult for taking place not hard up under the effect of external force when screwing up, makes to connect more fastening, can effectively avoid reamed hole bolt when screwing up, and the easy not hard up problem of taking place under the effect of vibration external force improves and connects the tightness.

In the actual operation process, when the device is used, the anti-skidding teeth 6 are arranged on the right wall of the hexagonal bolt head 2, the number range of the anti-skidding teeth 6 is 35-45 teeth, after the bolt is rotated into a workpiece, the right wall of the hexagonal bolt head 2 can be tightly attached to the surface of the workpiece, as the anti-skidding teeth 6 are arranged on the right wall of the hexagonal bolt head 2, the friction force between the right wall of the hexagonal bolt head 2 and the surface of the workpiece can be improved, when a special-shaped part is connected, the anti-skidding teeth 6 buckle the workpiece in the screwing process of the reaming hole anti-skidding bolt and the workpiece, the anti-skidding teeth 6 are not easy to loosen under the action of power rotation, the surface of the anti-skidding teeth 6 is smooth and not easy to wear, the reaming hole anti-skidding bolt can not be easy to loosen under the action of external force during screwing, the connection is firmer, the problem that the reaming bolt is easy to loosen under the action of vibration external force can be effectively avoided, and the connection tightness degree is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims (6)

1. The utility model provides a new-type reamed hole check bolt, includes spliced pole (1), hexagonal bolt head (2), its characterized in that: the right-hand member fixedly connected with threaded rod (3) of spliced pole (1), hexagonal bolt head (2) fixed connection is in the left end of spliced pole (1), antiskid tooth (6) have been seted up to the right wall of hexagonal bolt head (2), hexagonal recess (7) have been seted up on the right side of hexagonal bolt head (2).

2. The new reamed hole lockbolt of claim 1, wherein: the right-hand member fixedly connected with conical head (4) of spliced pole (1), thread tooth (5) have been seted up to the outer wall of conical head (4).

3. The new reamed hole lockbolt of claim 1, characterized by: the number of the anti-skidding teeth (6) is 35 to 45, and the height of the anti-skidding teeth (6) is 0.5 to 1 mm.

4. The new reamed hole lockbolt of claim 1, wherein: the depth of the hexagonal groove (7) is 2.5 mm to 3.5 mm, and the length of the connecting column (1) is 10 mm to 12 mm.

5. The new reamed hole lockbolt of claim 1, wherein: the length of the threaded rod (3) is 2.5 cm to 3 cm.

6. The new reamed hole lockbolt of claim 2, wherein: the length of the conical head (4) is 3 mm to 4 mm.

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