CN215634313U - Bolt structure with internal thread hole - Google Patents

Abstract

The utility model discloses a bolt structure with an internal thread hole, which is characterized by comprising a screw and a nut, wherein the nut comprises a left nut and a right nut, one end of the screw is provided with a first thread, the first thread is a left thread, the other end of the screw is provided with a second thread, the second thread is a right thread, the middle part of the screw, which is arranged between the first thread and the second thread, is a smooth curved surface, the bolt can resist vibration and prevent loosening, the nut is prevented from being separated from the screw, the normal operation of mechanical equipment is ensured, and unnecessary loss caused by loosening of the bolt is prevented.

Description

Bolt structure with internal thread hole

Technical Field

The utility model relates to a bolt structure with internal threads.

Background

The bolt is a mechanical part, the cylindrical threaded fastener of adapted nut, a class of fastener of compriseing head and screw rod (the cylinder that has the external screw thread), need with the nut cooperation, be used for the part of fastening connection two areas that have the through-hole, this kind of connection form is called bolted connection, if screw nut from the bolt unscrewing, can make these two parts separate again, so bolted connection belongs to and can dismantle the connection, but, traditional bolt if be in the environment of vibrations for a long time, nut and screw rod can appear becoming flexible, finally make the nut break away from the screw rod, if the bolt of mechanical equipment key part appears becoming flexible, can influence mechanical equipment's normal work, cause the loss.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a bolt structure with an internal thread hole, the bolt can resist shock and prevent looseness, a nut is prevented from being separated from a screw, normal operation of mechanical equipment is ensured, and unnecessary loss caused by loosening of the bolt is prevented.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a from bolt structure in area internal thread hole, includes screw rod and nut, the nut is including left nut and right nut, the one end of screw rod is equipped with first screw thread, and first screw thread is the left-hand thread, the screw rod other end is equipped with the second screw thread, and the second screw thread is the right side screw thread, the screw rod is arranged first screw thread in and the intermediate portion of second screw thread is smooth curved surface.

Further, left-hand nut and right nut are inside to be equipped with first circular port and second circular port respectively, be provided with in the first circular port with the screw thread of first screw thread looks adaptation, be provided with in the second circular port with the screw thread of second screw thread looks adaptation, after external connection spare part passed first screw thread or second screw thread and reachs the intermediate part, left-hand nut and right nut respectively with first screw thread and second screw thread spiro union to be fixed in the middle part with external connection spare.

Furthermore, the nut side end is provided with an L-shaped connecting piece used for being connected with an external connecting piece, the L-shaped connecting piece is composed of a transverse plate, a rotating shaft and a longitudinal plate, the transverse plate and the longitudinal plate are hinged through the rotating shaft, one end, far away from the rotating shaft, of the transverse plate is tightly connected with the nut side end, the middle of the upper end face of the longitudinal plate is further provided with a through hole used for being connected with external equipment, and a fastening nail can be arranged in the through hole and connected with the external connecting piece.

Furthermore, the screw, the left screw cap and the right screw cap are all made of stainless steel.

The utility model has the beneficial effects that:

1. through left nut, right nut respectively with screw rod left hand thread and right threaded connection's design, when vibrations, because the left nut is provided with the left hand thread, can twist left when meetting vibrations and move, the right nut is provided with the right hand thread, can twist right when vibrations, and the vibrations power between left nut and the right nut can offset each other, can prevent effectively that screw rod and nut are not hard up, prevents that the bolt of mechanical equipment key parts is not hard up, causes the mechanical equipment trouble.

2. Through the setting of the L type connecting piece on the nut, make the through-hole aim at external connection spare to go into the binding nail in the through-hole is built-in, still can leave appropriate length after the binding nail gos deep into the through-hole and supply the binding nail to be connected with external connection spare, can the effectual joint strength who increases the bolt, make mechanical equipment can operate for a long time, avoid the bolt not hard up, prevent that mechanical equipment key position bolt is not hard up, make mechanical equipment stop to operate, cause the unnecessary loss.

Drawings

FIG. 1 is a schematic structural view of a self-threaded bolt structure;

FIG. 2 is a schematic perspective view of a self-threading nut with a bolt structure;

FIG. 3 is a schematic perspective view of an L-shaped connector with a self-threaded bolt structure;

fig. 4 is a schematic view of a connection structure of a bolt structure with an internal thread.

Reference numerals: 1. a left nut; 11. a first circular hole; 2. a screw; 21. a first thread; 22. an intermediate portion; 23. a second thread; 3. a right nut; 31. a second circular hole; 4. an L-shaped connector; 41. a transverse plate; 42. a rotating shaft; 43. a longitudinal plate; 44. a through hole; 5. fastening nails; 6. and (4) a nut.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

Referring to fig. 1 to 4, the bolt structure from area internal thread hole of this embodiment, a bolt structure from area internal thread hole, including screw rod 2 and nut 6, nut 6 is including left nut 1 and right nut 3, the one end of screw rod 2 is equipped with first screw thread 21, and first screw thread 21 is the left hand thread, the 2 other ends of screw rod are equipped with second screw thread 23, and second screw thread 23 is the right hand thread, the screw rod 2 is arranged first screw thread 21 in and the intermediate portion 22 of second screw thread 23 is smooth curved surface.

The improvement is as follows: the screw 2 adopts a three-section design; first screw thread 21, intermediate part 22 and second screw thread 23, when left nut 1 and first screw thread 21 spiro union, meet vibrations after right nut 3 and second screw thread 23 spiro union, because left nut 1 is provided with the left screw thread, can twist left when meetting vibrations, right nut 3 is provided with the right screw thread, can twist right when vibrations, the vibrations power between left nut 1 and the right nut 3 can offset each other, make the bolt not become flexible easily, make mechanical equipment can stably operate for a long time, so just be superior to prior art, can reach and prevent that nut 6 from breaking away from screw rod 2, guarantee mechanical equipment normal operating, prevent to cause unnecessary loss because of the bolt is not flexible.

On the basis of the above-mentioned embodiment, left nut 1 and right nut 3 are inside to be equipped with first circular port 11 and second circular port 31 respectively, be provided with the screw thread with first screw thread 21 looks adaptation in the first circular port 11, be provided with the screw thread with second screw thread 23 looks adaptation in the second circular port 31, after external connecting piece passed first screw thread 21 or second screw thread 23 and reachd intermediate part 22, left nut 1 and right nut 3 respectively with first screw thread 21 and second screw thread 23 spiro union to be fixed in external connecting piece intermediate part 22.

The improvement is as follows: a first circular hole 11 and a second circular hole 31 are respectively arranged in the left nut 1 and the right nut 3, threads matched with the first threads 21 are arranged in the first circular hole 11, threads matched with the second threads 23 are arranged in the second circular hole 31, and the screw rod 2 can penetrate through the first circular hole 11 and the second circular hole 31 and is in threaded connection with the first circular hole 11 and the second circular hole 31; when the operator is operating, can pass first screw thread 21 or second screw thread 23 with the external connecting piece earlier, make the external connecting piece be in on the smooth curved surface of intermediate part 22, again with left nut 1 and the spiro union of first screw thread 21, right nut 3 and the spiro union of second screw thread 23, and fix the external connecting piece on intermediate part 22, when mechanical equipment shakes, because left nut 1 is provided with the left-hand thread, can twist left when meetting vibrations, right nut 3 is provided with the right-hand thread, can twist right when shaking, the vibrations force between left nut 1 and the right nut 3 can offset each other, make the bolt can not become flexible easily, make mechanical equipment can stably operate for a long time.

On the basis of the above embodiment, the side end of the nut 6 is provided with an L-shaped connecting piece 4 for connecting with an external connecting piece, the L-shaped connecting piece 4 is composed of a transverse plate 41, a rotating shaft 42 and a longitudinal plate 43, the transverse plate 41 and the longitudinal plate 43 are hinged by the rotating shaft 42, one end of the transverse plate 41 far away from the rotating shaft 42 is tightly connected with the side end of the nut 6, the middle part of the upper end face of the longitudinal plate 43 is further provided with a through hole 44 for connecting with the external connecting piece, and a fastening nail 5 can be inserted into the through hole 44 to be connected with the external connecting piece.

The improvement is as follows: the transverse plate 41 is hinged to the longitudinal plate 43 through the rotating shaft 42, the nut 6 can be conveniently screwed into the screw rod 2, when an operator screws the nut 6 into the screw rod 2, the longitudinal plate 43 can be rotated to the direction that the nut 6 is not influenced to be screwed into the screw rod 2, after the nut 6 is screwed into the screw rod 2, the operator rotates the longitudinal plate 43 again, the through hole 44 is aligned to an external connecting piece to be fixed, the operator finally inserts the fastening nail 5 into the through hole 44 to fasten, after the fastening nail 5 penetrates into the through hole 44, a space is reserved for the fastening nail 5 to be connected with an external part, the fastening nail 5 penetrates into the internal part of the external part, the connection strength is improved, and the stability of mechanical equipment is improved.

On the basis of the above embodiment, the screw rod 2, the left nut 1 and the right nut 3 are all made of stainless steel.

The improvement is as follows: screw rod 2, left nut 1 and right nut 3 all adopt the stainless steel to make, and the stainless steel has intensity height, and is corrosion-resistant, has the characteristics of good ductility and toughness, can effectively increase left nut 1, screw rod 2 and right nut 3's live time, has practiced thrift the use cost of material greatly.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (4)

1. The utility model provides a from bolt structure who takes internal thread hole, includes screw rod (2) and nut (6), its characterized in that: nut (6) are including left nut (1) and right nut (3), the one end of screw rod (2) is equipped with first screw thread (21), and first screw thread (21) are the left-hand thread, screw rod (2) other end is equipped with second screw thread (23), and second screw thread (23) are the right-hand thread, intermediate portion (22) that first screw thread (21) and second screw thread (23) were arranged in to screw rod (2) are smooth curved surface.

2. The bolt structure with the internal thread hole according to claim 1, wherein: left-hand nut (1) and right nut (3) inside are equipped with first circular port (11) and second circular port (31) respectively, be provided with the screw thread with first screw thread (21) looks adaptation in first circular port (11), be provided with the screw thread with second screw thread (23) looks adaptation in second circular port (31), after external connecting piece passed first screw thread (21) or second screw thread (23) and reachs intermediate part (22), left-hand nut (1) and right nut (3) respectively with first screw thread (21) and second screw thread (23) spiro union to be fixed in intermediate part (22) with external connecting piece.

3. The bolt structure with the internal thread hole according to claim 2, wherein: the side of nut (6) is equipped with L type connecting piece (4) that is used for being connected with the external connection spare, L type connecting piece (4) comprise horizontal board (41), axis of rotation (42) and vertical board (43), adopt axis of rotation (42) to articulate between horizontal board (41) and the vertical board (43), the one end of keeping away from axis of rotation (42) of horizontal board (41) is connected with nut (6) side fastening, vertical board (43) upper end face middle part still is provided with through-hole (44) that are used for being connected with the external connection spare to can imbed in through-hole (44) and fasten nail (5) and be connected with the external connection spare.

4. The bolt structure with the internal thread hole according to claim 3, wherein: the screw rod (2), the left screw cap (1) and the right screw cap (3) are all made of stainless steel.

Images