CN219673048U

CN219673048U - Same side locking bolt

Info

Publication number: CN219673048U
Application number: CN202320402401.4U
Authority: CN
Inventors: 王立研
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2023-03-06
Filing date: 2023-03-06
Publication date: 2023-09-12
Anticipated expiration: 2033-03-06

Abstract

The utility model belongs to the technical field of vehicle accessories, and discloses a same-side locking bolt which comprises a bolt body and an operating rod, wherein the bolt body comprises a head and a stud, an assembly hole is formed in the end part, away from the head, of the stud, and the cross section of the assembly hole is polygonal; the operation rod and the assembly hole have the same cross section, the operation rod comprises a first rod and a second rod which are connected in a rotating mode, the first rod and the second rod can be partially or completely contained in the assembly hole when in a coaxial state, and the first rod and the second rod can be matched with the assembly hole to be used as an internal angle wrench when relatively rotating to form an included angle A. The screw bolt can be screwed and unscrewed on the stud side, so that the problem that the space on one side of the head of the bolt body is narrow and is inconvenient for the operation of a spanner is solved, the application range is wide, and the operation is flexible and convenient; the operating rod is inserted in the assembly hole, which is favorable for storage and use.

Description

Same side locking bolt

Technical Field

The utility model relates to the technical field of vehicle accessories, in particular to a same-side locking bolt.

Background

The bolt is used as a mechanical part, and can be matched with the nut to fasten two parts with through holes. When the bolt is used, the head nuts are required to be respectively fixed for screwing. In the truck assembly field, the main effect of bolt is the various spare parts on the connection automobile body, and the bolt has advantages such as precision height, convenient assembling and part dismouting convenience. At present, a common tool for screwing or unscrewing a bolt is a spanner, but when the spanner is used, enough space is required around, and in the process of assembling or disassembling parts of a truck, the space around the bolt is relatively narrow, so that inconvenience is brought to assembling and disassembling.

When the frame bolt is assembled or disassembled, one end (head) of the bolt is required to be fixed, and then the other end (nut) is screwed or unscrewed, so that the bolt on the inner side of the frame is shielded by the wire harness or the parts, the surrounding space is narrow, and the fixing of one end of the bolt by using a spanner is difficult.

Disclosure of Invention

The utility model aims to provide a same-side locking bolt so as to solve the problem that bolts in a narrow space are inconvenient to assemble and disassemble.

To achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a homonymous locking bolt, comprising:

the bolt body comprises a head and a stud, wherein an assembly hole is formed in the end part, deviating from the head, of the stud, and the cross section of the assembly hole is polygonal;

the operation rod and the assembly hole have the same cross section, the operation rod comprises a first rod and a second rod, the first rod and the second rod are connected in a rotating mode, when the first rod and the second rod are in a coaxial state, the first rod and the second rod can be partially or completely contained in the assembly hole, and when the first rod and the second rod relatively rotate to form an included angle A, the first rod and the second rod can be used as an internal angle spanner to be matched with the assembly hole.

Optionally, the first rod is completely inserted into the assembly hole, the second rod portion is inserted into the assembly hole, and the length of the second rod is greater than that of the first rod.

Optionally, the included angle a is 90 °.

Optionally, a rotation shaft is provided between the first lever and the second lever for rotational connection.

Optionally, the first rod is a solid rod structure, and the outer diameter of the first rod is equal to the inner diameter of the assembly hole so as to insert a limit.

Optionally, the second rod is a telescopic rod, and an outer tube of the telescopic rod is rotatably connected with the first rod.

Optionally, the assembly hole is the square hole, first pole with when the second pole is inserted and is established in the square hole, the second pole is in the shrink state, first pole with the outer wall of second pole with the inner wall in square hole pastes and can slide relatively.

Optionally, the center of the assembly hole is located on the axis of the stud.

Optionally, the depth of the assembly hole is no greater than one half of the axial length of the stud.

Optionally, the maximum radial dimension of the mounting hole is not greater than the radius of the stud.

The utility model has the beneficial effects that:

according to the same-side locking bolt, the end part, which is far away from the head part, of the stud is provided with the assembly hole with the polygonal cross section, the operating rod is inserted into the assembly hole, and when the bolt body is connected, the conventional bolt is limited on the head part and the nut of the bolt respectively through two wrenches so as to be screwed or unscrewed, and the two sides of the bolt are required to be provided with accommodating spaces for the wrenches; the same-side locking bolt can realize screwing and unscrewing on the stud side, and specifically comprises the following components: after the bolt body is inserted, the operating rod can be disassembled, an inner hole spanner is adopted to limit the assembly hole, and the locking or unscrewing of the bolt body on the stud side is realized by matching with a spanner on the nut; the same-side locking bolt can also be locked or unscrewed by utilizing the operation rod of the extending part and adopting two wrenches to respectively limit the operation rod and the nut, so that the problem that the space on one side of the head of the bolt body is narrow and the operation of the wrenches is inconvenient is solved, the existing assembly tool can be flexibly used for locking or unscrewing when the bolt body is limited in the same direction (or on the same side), the application range is wide, and the operation is flexible and convenient; the operating rod is inserted into the assembly hole, so that the storage and the use are facilitated; the operating rod can be detached after the tightening operation, which is beneficial to reducing the weight of a single bolt body, and further is beneficial to realizing the light weight of the whole vehicle and reducing the oil consumption.

Drawings

FIG. 1 is a schematic view of a construction of a ipsilateral lock bolt according to an embodiment of the present utility model;

fig. 2 is a projection view of a stud end in a homolateral lock bolt according to an embodiment of the present utility model.

In the figure:

1. a bolt body; 11. a head; 12. a stud; 121. a fitting hole;

2. an operation lever; 21. a first lever; 22. a second lever; 23. a rotation shaft;

3. and (3) a nut.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

The utility model provides a same-side locking bolt, which is shown in fig. 1 and 2, and comprises a bolt body 1 and an operating rod 2, wherein the bolt body 1 comprises a head 11 and a stud 12, an assembling hole 121 is formed in the end part, away from the head 11, of the stud 12, and the cross section of the assembling hole 121 is polygonal; specifically, the fitting hole 121 may be a square hole, a pentagonal hole, or a hexagonal hole. The head 11 and the stud 12 in the bolt body 1 are of a conventional bolt structure, the head 11 is hexagonal, and the stud 12 is provided with external threads.

The operation lever 2 has the same cross section as the fitting hole 121, and one end of the operation lever 2 is inserted into the fitting hole 121 and the other end portion protrudes out of the fitting hole 121.

As shown in fig. 1, the operating rod 2 is partially inserted into the assembly hole 121, and when the two parts are connected by bolts, the stud 12 of the bolt body 1 is threaded on the two parts to be connected, and the conventional bolts are respectively limited on the head 11 and the nut 3 by two wrenches to be screwed or unscrewed, so that the two sides of the bolts are required to be provided with accommodating spaces for the wrenches. The same-side locking bolt can realize screwing and unscrewing on the side of the stud 12, and specifically comprises the following components: after the stud 12 of the bolt body 1 is penetrated with two parts to be connected, the operating rod 2 can be detached, an inner hole wrench is inserted into the assembly hole 121, and the locking or unscrewing of the bolt body 1 on the stud 12 side is realized by matching with a wrench on the nut 3; the same-side locking bolt can also be locked or unscrewed by utilizing the operation rod 2 of the extension part and adopting two wrenches to respectively limit the operation rod 2 and the nut 3, so that the problem that the space on one side of the head 11 of the bolt body 1 is narrow and the operation of the wrenches is inconvenient is solved, the existing assembly tool can be flexibly adopted to lock or unscrew the bolt body 1 when the same-direction (or same-side) limit is carried out, the application range is wide, and the operation is flexible and convenient; the operating rod 2 is inserted into the assembly hole 121, so that the storage and the use are facilitated; the operating rod 2 can be detached after the tightening operation, which is beneficial to reducing the weight of a single bolt body 1, and further is beneficial to realizing the light weight of the whole vehicle and reducing the oil consumption.

Alternatively, the operating rod 2 includes a first rod 21 and a second rod 22, the first rod 21 and the second rod 22 are rotatably connected, when the first rod 21 and the second rod 22 are in a coaxial state, the first rod 21 and the second rod 22 can be received in the assembly hole 121, and when the first rod 21 and the second rod 22 relatively rotate and form an included angle a, the first rod 21 and the second rod 22 can be mounted as an internal angle wrench in cooperation with the assembly hole 121 to limit the stud 12.

In the present embodiment, as shown in fig. 1, the included angle a is 90 °. The first rod 21 is partially inserted into the assembly hole 121, the second rod 22 rotates 90 degrees relative to the first rod 21 to form a right-angle wrench, when the bolt body 1 is connected and assembled, the second rod 22 is partially inserted into the assembly hole 121, the first rod 21 is held by hand, circumferential limiting of the stud 12 is achieved, and screwing or unscrewing of the other wrench fixing nut 3 is facilitated. It can be understood that setting up the action bars 2 as two parts of swivelling joint, realized the function of interior angle spanner, and action bars 2 and nut 3 all are spacing in double-screw bolt 12, realize screwing or unscrewing at the homonymy of double-screw bolt 12 side, provide a nimble convenient bolt assembly method to the narrow and small operating mode in head 11 space, enlarged the application range of bolt.

Alternatively, as shown in fig. 1, the first rod 21 is entirely penetrated in the fitting hole 121, the second rod 22 is partially penetrated in the fitting hole 121, and the length of the second rod 22 is greater than that of the first rod 21. When the first rod 21 and the second rod 22 relatively rotate to form an included angle a of 90 degrees, the first rod 21 and the second rod 22 form an internal angle wrench, the length of the second rod 22 is favorable for hand-held force application, and the first rod 21 only needs to be partially inserted into the assembly hole 121.

Alternatively, a rotation shaft 23 is provided between the first lever 21 and the second lever 22 to be rotatably connected.

As shown in fig. 1, the ipsilateral locking bolt further includes a rotation shaft 23, and the rotation shaft 23 is configured to rotatably connect the first lever 21 and the second lever 22. In some embodiments, the rotation shaft 23 is a pin, and the rotation shaft 23 is simultaneously penetrated on the first rod 21 and the second rod 22 in the radial direction of the first rod 21, so that the second rod 22 can rotate around the first rod 21 to form a right angle wrench. Specifically, the rotation shaft 23 may be one shaft penetrating the first and second rods 21 and 22, or may be a short shaft provided between the outer and inner walls of the first and second rods 21 and 22, respectively, so as to reduce the self weight of the rotation shaft 23. The two ends of the rotation shaft 23 may be fixed by caulking, and the specific form of the present embodiment is not limited.

Alternatively, the first rod 21 is a solid rod structure, and the outer diameter of the first rod 21 is equal to the inner diameter of the fitting hole 121 to insert the limit.

In this embodiment, the first rod 21 may remain in the assembly hole 121 after the installation of the bolt body 1 to enhance the strength of the stud 12, or the first rod 21 may be removed to reduce the dead weight of the stud 12 when the stud 12 is ensured to have sufficient strength, so as to realize the light weight design of the bolt body 1, and be beneficial to realize the light weight of the whole vehicle on a vehicle body with a large number of bolts. The first rod 21 and the assembly hole 121 are mounted in a clearance fit manner, so that the first rod 21 can be conveniently assembled and taken out.

Alternatively, the second rod 22 is a telescopic rod, the outer tube of which is rotatably connected to the first rod 21.

In the embodiment shown in fig. 1, the first rod 21 is a solid rod and is inserted into the assembly hole 121, the second rod 22 is a three-section telescopic rod, as shown by a broken line in fig. 1, the telescopic rod can be completely retracted in the outer tube and is simultaneously retracted in the assembly hole 121 with the first rod 21, so that the length of the bolt body 1 is not additionally increased, and interference between the bolt body 1 and a part to be connected is avoided during assembly. When the bolt body 1 is assembled, the second rod 22 stretches out a certain length to form a long-arm spanner, so that the handheld operation is facilitated, labor and space are saved, and the adjustment can be flexibly performed.

Alternatively, the assembly hole 121 is a square hole, and when the first rod 21 and the second rod 22 are inserted into the square hole, the second rod 22 is in a contracted state, and the outer walls of the first rod 21 and the second rod 22 are attached to the inner wall of the square hole and can slide relatively.

As shown in fig. 2, the assembly hole 121 is formed as a square hole, which is convenient to process, and has a simple structure. Of course, in some embodiments, the fitting hole 121 may be provided in the same shape as the nut 3 to facilitate the selection of a wrench. The square pipes are adopted for the first rod 21 and the second rod 22 to be matched with square holes, so that the first rod 21 and the second rod 22 can be attached to the inner wall of the assembly hole 121, and the first rod and the second rod are fixedly mounted by virtue of friction force, and are convenient to take out when in use. Further, the sum of the axial lengths of the first rod 21 and the second rod 22 is slightly larger than the depth of the fitting hole 121, so that a part of the entire operating rod 2 is exposed outside the fitting hole 121, facilitating the taking-out operation.

Optionally, the center of the mounting hole 121 is located on the axis of the stud 12.

The assembly holes 121 and the studs 12 are coaxially arranged, so that the studs 12 have axial balanced stress when being screwed or unscrewed, and the situation that the studs 12 generate large torque to influence the service life is avoided.

Optionally, the depth of the mounting hole 121 is no greater than one half the axial length of the stud 12.

Optionally, the largest radial dimension of the mounting hole 121 is not greater than the radius of the stud 12.

When it is to be explained, the function of the assembly hole 121 is to provide an inner hole that can be used as an inner angle wrench, and to screw or unscrew on the same side as the wrench of the nut 3; the second is to provide an outer hexagonal structure which can adopt an inner hole spanner, wherein the part of the operating rod 2 extending out of the outer side of the assembly hole 121 is assembled with the inner hole spanner, and the same side screwing or unscrewing with the inner hole spanner of the nut 3 is realized. Accordingly, the depth dimension of the mounting hole 121 may be as small as possible, typically not more than one-half the axial length of the stud 12, avoiding affecting the strength of the stud 12 itself. At the same time, the aperture of the mounting hole 121 need not be large, and depending on the strength requirements of the stud 12 at the location of connection, the largest radial dimension of the mounting hole 121 is not larger than the radius of the stud 12 so that the stud 12 has sufficient tightening or loosening strength. In the above preferred embodiments, in the specific implementation, the bolt bodies 1 with different specifications may be selected according to the strength requirement of the connected position, and this embodiment will not be described in detail.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims

1. Homonymy locking bolt, its characterized in that includes:

the bolt body (1) comprises a head (11) and a stud (12), wherein an assembly hole (121) is formed in the end part, away from the head (11), of the stud (12), and the cross section of the assembly hole (121) is polygonal;

the operation rod (2), operation rod (2) with mounting hole (121) have the same cross section, operation rod (2) include first pole (21) and second pole (22), first pole (21) with rotate between second pole (22) and be connected, when first pole (21) with second pole (22) are coaxial state, first pole (21) and second pole (22) can be partly or wholly accomodate in mounting hole (121), when first pole (21) with second pole (22) are relative to rotate and form contained angle A, first pole (21) with second pole (22) can be regarded as the interior angle with mounting hole (121) cooperation is used.

2. The ipsilateral locking bolt according to claim 1, wherein said first rod (21) is entirely threaded in said fitting hole (121), said second rod (22) is partially threaded in said fitting hole (121), and said second rod (22) has a length greater than that of said first rod (21).

3. The ipsilateral lock bolt according to claim 1, wherein said included angle a is 90 °.

4. The ipsilateral lock bolt according to claim 1, characterized in that a rotation shaft (23) is provided between the first lever (21) and the second lever (22) for the rotational connection.

5. The ipsilateral locking bolt according to claim 2, wherein the first rod (21) is of a solid rod structure, and the outer diameter of the first rod (21) is equal to the inner diameter of the fitting hole (121) to insert a limit.

6. The ipsilateral lock bolt according to claim 5, wherein the second rod (22) is a telescopic rod, the outer tube of which is in rotational connection with the first rod (21).

7. The ipsilateral locking bolt according to claim 6, wherein the assembly hole (121) is a square hole, the first rod (21) and the second rod (22) are in a contracted state when inserted into the square hole, and the outer walls of the first rod (21) and the second rod (22) are engaged with the inner wall of the square hole and can slide relatively.

8. The ipsilateral lock bolt according to claim 1, characterized in that the centre of the fitting hole (121) is located on the axis of the stud (12).

9. The ipsilateral lock bolt according to claim 1, wherein the depth of the fitting hole (121) is not more than half the axial length of the stud (12).

10. The ipsilateral lock bolt according to claim 1, characterized in that the largest radial dimension of the fitting hole (121) is not larger than the radius of the stud (12).