CN112576603A

CN112576603A - Interlocking bolt

Info

Publication number: CN112576603A
Application number: CN202011601447.6A
Authority: CN
Inventors: 孙君武; 王志河; 简东平; 熊志得; 杨冬梅; 刘畅; 屈明亮
Original assignee: Henan Aerospace Precision Machining Co Ltd
Current assignee: Henan Aerospace Precision Machining Co Ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-03-30

Abstract

The invention relates to an interlocking bolt which comprises a screw rod, wherein a bolt head is positioned at one end of the screw rod, a threaded hole with an included angle with the axis of the screw rod is formed in the bolt head, when the interlocking bolt is used, the interlocking bolt is connected to a workpiece in a first direction according to workpieces needing to be connected in different directions, then a bolt is screwed on the workpiece in a second direction, and a rod part of the bolt penetrates through the workpiece in the second direction and then is screwed in a threaded hole of the bolt head of the interlocking bolt. The bolt screw in threaded hole of connection on the work piece on the second direction, because the contained angle has between the axis of screw hole and screw rod, consequently, connect on the work piece of second direction, adorn soon and can carry out the locking to the interlocking bolt in the threaded hole, prevent that the interlocking bolt from loosening for the work piece on the first direction soon, meanwhile, through being connected of bolt and check bolt, realize the reliable and stable connection of work piece in first direction and the second direction.

Description

Interlocking bolt

Technical Field

The present invention relates to an interlocking bolt.

Background

In industrial production, connection between workpieces in different directions is involved, taking fixed connection of workpieces in a vertical direction as shown in fig. 1 as an example, workpieces needing fixed connection comprise a workpiece i 1 and a workpiece ii 2 in a first direction, namely a horizontal direction, and a workpiece iii 3 and a workpiece iv 4 in a second direction, namely a vertical direction, wherein the workpiece i 1 and the workpiece ii 2 need fixed connection, the workpiece iii 3 and the workpiece iv 4 need fixed connection, and meanwhile, the workpiece i 1 and the workpiece ii 2 in the first direction also need connection with the workpiece iii 3 and the workpiece iv 4 in the second direction.

To such structure, carry out independent fixed connection to two sets of work pieces respectively through the connecting piece among the prior art, specifically, set up corresponding connection structure to work piece I1 and work piece II 2 and carry out fixed connection, set up corresponding connection structure to work piece III 3 and work piece IV 4 and carry out fixed connection, then will connect work piece I1, work piece II 2 and the work piece III 3, the work piece IV 4 of being connected through other connection structure again.

In the use process of the conventional connecting structure, the looseness phenomenon can occur due to factors such as vibration, external force and the like, so that the reliability of fixed connection is reduced. If the conventional anti-loosening means is adopted for fixing, the requirement on the installation space is higher, and the anti-loosening connecting structure cannot be applied to occasions with limited installation space.

Disclosure of Invention

The invention aims to provide an interlocking bolt to solve the technical problem that workpieces located in different directions cannot be stably and reliably connected in the prior art.

In order to achieve the purpose, the technical scheme of the interlocking bolt provided by the invention is as follows:

the interlocking bolt comprises a screw rod, wherein a bolt head is positioned at one end of the screw rod, a threaded hole with an included angle between the axis of the screw rod and the axis of the screw rod is formed in the bolt head, when the interlocking bolt is used, the interlocking bolt is connected onto a workpiece in a first direction aiming at workpieces needing to be connected in different directions, then a bolt is screwed onto the workpiece in a second direction, and a rod part of the bolt penetrates through the workpiece in the second direction and then is screwed into a threaded hole of the bolt head of the interlocking bolt.

The beneficial effects are that: the bolt screw in threaded hole of connection on the work piece on the second direction, because the contained angle has between the axis of screw hole and screw rod, consequently, connect on the work piece of second direction, adorn soon and can carry out the locking to the interlocking bolt in the threaded hole, prevent that the interlocking bolt from loosening for the work piece on the first direction soon, meanwhile, through being connected of bolt and check bolt, realize the reliable and stable connection of work piece in first direction and the second direction.

As a further improvement, the threaded hole is internally provided with a locking structure for locking and preventing the bolt screwed into the threaded hole from loosening.

The beneficial effects are that: the anti-loosening structure is arranged in the threaded hole, so that the bolt head can lock and loosen the bolt screwed into the threaded hole, and the workpieces in different directions can be stably and reliably connected.

In a further improvement, the bolt head is a cylindrical bolt head with a thread on the inner wall, the inner hole of the cylindrical bolt head forms the thread hole, and the screw rod is connected to the circumferential surface of the cylindrical bolt head.

The beneficial effects are that: the bolt head is cylindrical so that the threaded bore has as large an axial dimension as possible, thereby ensuring that the bolt in the second direction can be screwed as far as possible with the interlocking bolt.

As a further improvement, the anti-loosening structure is a closing structure positioned at the opening of the cylindrical bolt head.

The beneficial effects are that: based on the tubular structure of the bolt head, the locking structure for locking and preventing the bolt screwed into the bolt can be simply and conveniently formed in the threaded hole of the bolt head by arranging the closing-up structure at the opening of the tubular hole.

In a further improvement, an end face of the cylindrical bolt head facing away from the end of the cylindrical opening is a plane, and the plane is perpendicular to the axis of the threaded hole and can be used as a reference plane, so that an operator can judge the orientation of the threaded hole according to the reference plane.

The beneficial effects are that: set up the reference surface, be convenient for operating personnel carry out accurate judgement to the orientation of screw hole when adorning interlocking nut soon to revolve the position to the work piece place of screw hole orientation second direction with interlocking bolt.

As a further improvement, an end plate is fixed at one end of the cylindrical bolt head, which is back to the cylinder opening, the plate surface of the end plate forms the reference surface, and the end plate is fixedly connected with the screw rod.

The beneficial effects are that: the end plate is connected to the screw while providing a reference surface, and such end plate can reinforce the connection between the bolt head and the screw as a connecting rib.

As a further improvement, the threaded hole of the bolt head is adapted to the threaded rod, so that the interlocking bolt can be used in cooperation.

The beneficial effects are that: so that more than two interlocking bolts can be used in cooperation.

As a further improvement, the threaded hole is perpendicular to the axis of the screw.

The beneficial effects are that: such interlocking bolts can be used for joining two workpieces in the vertical direction.

Drawings

FIG. 1 is a schematic diagram of the position structure of a workpiece to be joined in two directions;

FIG. 2 is a schematic structural view of an interlocking nut of embodiment 1 of the present invention;

FIG. 3 is a view showing the state of use of embodiment 1 of the interlocking nut of the present invention;

description of reference numerals:

1. a workpiece I; 2. a workpiece II; 3. a workpiece III; 4. a workpiece IV; 5. a screw; 6. a bolt head; 7. a threaded hole; 8. a closing structure; 9. an end plate; 10. a first interlocking bolt; 11. a second interlocking bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that 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. Without further limitation, elements recited by the phrase "comprising an … …" do not exclude the inclusion of such elements in processes or methods.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

In the embodiment 1 of the interlocking bolt provided by the present invention, the workpieces to be connected are located in a first direction and a second direction which are perpendicular to each other, and the first direction is provided with the workpiece i 1 and the workpiece ii 2, and the second direction is provided with the workpiece iii 3 and the workpiece iv 4, which are taken as examples, the structure and the operation principle of the interlocking bolt of the present invention are described, and it should be noted that the first direction and the second direction are only different from each other in two directions, and the structure is not limited. The method comprises the following specific steps:

as shown in fig. 2, the interlocking bolt includes a screw rod 5 and a bolt head 6 located at an end of the screw rod 5, and one end of the screw rod 5 far from the bolt head 6 is a threaded section provided with an external thread. The bolt head 6 is provided with a threaded hole 7, the axis of the threaded hole 7 and the axis of the screw rod 5 form an included angle of other than 0 degree and 180 degrees, and in the embodiment, the axis of the threaded hole 7 is perpendicular to the axis of the screw rod 2.

In the structure of the bolt head 6 in the present embodiment, as shown in fig. 2, the bolt head 6 has a cylindrical structure, the screw 5 is connected to the outer peripheral surface of the bolt head 6, and the screw hole 7 is formed by threading the inner wall of the center hole of the cylindrical bolt head 6. Have in the screw hole 7 and have the locking structure who locks locking to the bolt that screws into wherein, in this embodiment, the processing has binding off structure 8 in the position department of being close to the nozzle of bolt head 6, and binding off structure 8 makes the internal thread diameter of corresponding part diminish to make screw hole 7 have locking structure, and then realize locking to the corresponding bolt in screw hole 7. In other embodiments, the anti-loosening structure can also be other thread anti-loosening structures in the prior art.

As a further optimization, one end of the bolt head 6, which faces away from the cylinder mouth, is provided with an end plate 9, the outer side end face of the end plate 9 is a plane, and the plane is perpendicular to the axis of the threaded hole 7, so that the outer side face of the end plate 9 can be used as a reference surface for an operator to judge the orientation of the hole opening of the threaded hole 7. Meanwhile, the end plate 9 is fixedly connected with the screw rod 5 while the diameter of the end plate 9 is larger than that of the bolt head 6, and the end plate 9 serves as a connecting rib to reinforce the connection strength between the bolt head 6 and the screw rod 5, so that the structural strength of the interlocking bolt is improved.

In this embodiment, the threaded hole 7 is sized to mate with the threaded section of the threaded rod 5 so that the two interlocking bolts can be used in combination. As shown in particular in fig. 3, the interlocking bolt for being arranged in the first direction is defined as a first interlocking bolt 10, the bolt for setting in the second direction is a second interlocking bolt 11, when in use, the first interlocking bolt 10 is connected between the workpiece I1 and the workpiece II 2, after the connection is completed, the threaded hole of the first interlocking bolt 10 faces to the workpiece in the second direction, then, a second interlocking bolt 11 is connected to the workpiece III 3 and the workpiece IV 4, at the moment, the bolt head of the first interlocking bolt 10 can be used as a suspended supporting plate self-locking nut for screwing the second interlocking bolt 11 in, after the second interlocking bolt 11 is screwed in the threaded hole of the first interlocking bolt 10, by fixing the workpieces in the second direction to the corresponding fixing bodies, the first interlocking bolt 10 can be prevented from rotating about its own axis, thereby achieving stable and reliable connection of the workpieces in both directions. In other embodiments, two or more interlocking bolts of the present invention may be used to join two or more than four workpieces in two orientations, or with other conventional bolts.

The specific embodiment 2 of the interlocking bolt provided by the invention is mainly different from the embodiment 1 in that: in embodiment 1, the included angle between the axis of the threaded hole and the axis of the screw is 90 °, and in this embodiment, the included angle between the axis of the threaded hole and the axis of the screw is an acute angle, so that workpieces in two directions of the corresponding included angle are connected. Of course, in other embodiments, the included angle between the axis of the threaded hole and the axis of the screw rod can also be an obtuse angle, so that workpieces in two directions corresponding to the included angle are connected.

The specific embodiment 3 of the interlocking bolt provided by the invention is mainly different from the embodiment 1 in that: in embodiment 1, the bolt head is cylindrical, and in this embodiment, the bolt head is a hexagonal block, and a threaded hole is formed in one side surface of the hexagonal block bolt head.

The specific embodiment 4 of the interlocking bolt provided by the invention is mainly different from the embodiment 1 in that: in this embodiment, the threaded hole of the interlocking bolt is adapted to the bolt of the conventional bolt, so that the interlocking bolt can be used in cooperation with the conventional bolt to connect workpieces located in two directions.

The specific embodiment 5 of the interlocking bolt provided by the invention is mainly different from the embodiment 1 in that: in this embodiment, an end surface of the cylindrical bolt facing away from the cylinder opening is an arc surface.

Finally, although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments without departing from the inventive concept, or some of the technical features may be replaced with equivalents. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An interlocking bolt, comprising:

a screw (5);

the bolt head (6) is positioned at one end of the screw rod (5), and a threaded hole (7) with an included angle between the axis of the bolt head (6) and the axis of the screw rod (5) is formed in the bolt head;

when the interlocking bolt is used, the interlocking bolt is connected to a workpiece in a first direction aiming at workpieces needing to be connected in different directions, then the bolt is screwed on the workpiece in a second direction, and the rod part of the bolt penetrates through the workpiece in the second direction and then is screwed in the threaded hole (7) of the bolt head (6) of the interlocking bolt.

2. An interlocking bolt as claimed in claim 1 characterised in that the threaded bore (7) has a locking formation therein to lock the bolt screwed therein.

3. An interlocking bolt according to claim 2, characterised in that the bolt head (6) is a cylindrical bolt head (6) with a screw thread on its inner wall, the inner bore of the cylindrical bolt head (6) forming the screw thread (7), the screw (5) being attached to the circumference of the cylindrical bolt head (6).

4. An interlocking bolt as claimed in claim 3 in which the anti-loosening formation is a converging formation (8) at the mouth of the barrel bolt head (6).

5. An interlocking bolt according to any one of claims 2 to 4, characterised in that the end face of the cylindrical bolt head (6) facing away from the end of its barrel mouth is a flat surface which is perpendicular to the axis of the threaded bore (7) and can be used as a datum surface to enable an operator to determine the orientation of the threaded bore (7) from the datum surface.

6. An interlocking bolt as claimed in claim 5, characterised in that an end plate (9) is fixed to the end of the cylindrical bolt head (6) facing away from the barrel mouth, the plate surface of the end plate (9) forming the datum surface, the end plate (9) being also fixedly connected to the threaded rod (5).

7. An interlocking bolt according to any one of claims 1 to 4, characterised in that the threaded bore (7) of the bolt head (6) is adapted to the shank (5) so that the interlocking bolt can be used in conjunction.

8. An interlocking bolt as claimed in any one of claims 1 to 4 characterised in that the threaded bore (7) is perpendicular to the axis of the shank (5).