CN215567114U

CN215567114U - Check bolt and fixing device

Info

Publication number: CN215567114U
Application number: CN202121917666.5U
Authority: CN
Inventors: 朱志勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-01-18
Anticipated expiration: 2031-08-16

Abstract

The application provides a check bolt and fixing device relates to bolt technical field, includes: the screw head, connect screw rod and double-screw bolt on the screw head, the screw rod is kept away from the one end of screw head sets up the screw hole, the screw hole with the bolt body is coaxial, set up on the screw rod and run through the logical groove of screw hole lateral wall, it runs through to lead to the groove the screw rod is kept away from the one end of screw head, the diameter of double-screw bolt increases from first end to second end in proper order, the diameter of the first end of double-screw bolt is less than the diameter of screw hole, the diameter of the second end of double-screw bolt is greater than the diameter of screw hole, the first end screw in of double-screw bolt the screw hole. During the use, insert the screw rod in the mounting hole, with the screw hole on the double-screw bolt screw in screw rod, the screw rod is pushed open to the periphery by the double-screw bolt for the lateral wall and the mounting hole of screw rod support tightly, prevent that the screw rod is not hard up to break away from the mounting hole, and fixed effect is better.

Description

Check bolt and fixing device

Technical Field

The application relates to the technical field of bolts, in particular to a check bolt and a fixing device.

Background

Among the mechanical parts, the bolt is a common retaining member, and the wide application plays fastening part's effect in each field, screw in mounting hole usually, but among the prior art, the bolt uses after a period, often can take place not hard up, and especially some need the equipment of frequent vibration, at the in-process of vibration, the bolt takes place to become flexible relatively easily, takes place the condition that the bolt takes place to drop.

The problem that how to solve the problem that the bolt is easy to fall off in the prior art is mainly solved by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a check bolt, effectively prevents that the bolt is not hard up to break away from the mounting hole, has higher practical value.

In order to achieve the purpose, the application provides the following technical scheme:

the application provides a check bolt includes: the screw head, connect screw rod and double-screw bolt on the screw head, the screw rod is kept away from the one end of screw head sets up the screw hole, the screw hole with the bolt body is coaxial, set up on the screw rod and run through the logical groove of screw hole lateral wall, it runs through to lead to the groove the screw rod is kept away from the one end of screw head, the diameter of double-screw bolt increases from first end to second end in proper order, the diameter of the first end of double-screw bolt is less than the diameter of screw hole, the diameter of the second end of double-screw bolt is greater than the diameter of screw hole, the first end screw in of double-screw bolt the screw hole.

Optionally, the clamping device further comprises a clamping element, wherein the clamping element is connected with the stud and the side wall of the threaded hole and used for fixing the stud.

Optionally, the clamping element is a clamp spring, an end surface of the clamp spring abuts against the stud, and a side edge of the clamp spring abuts against a side wall of the threaded hole.

Optionally, the width of the through groove decreases from the screw to the screw head in sequence.

Optionally, the shape of the through slot is triangular.

Optionally, the through grooves are arranged in a plurality and are uniformly arranged along the circumferential direction of the screw rod.

Optionally, a counter bore for screwing a screwdriver is arranged on the end face of the second end of the stud.

Optionally, the counterbore is an inner hexagonal counterbore.

Optionally, a through hole is arranged on the screw head, and the through hole is coaxial and communicated with the threaded hole.

The application provides a fixing device includes: the check bolt is any one of the check bolts.

The technical scheme provided by the application can comprise the following beneficial effects:

the application provides a pair of check bolt, during the use inserts the screw rod in the mounting hole, with the screw hole on the double-screw bolt screw in screw rod, the screw rod is backed down to the periphery by the double-screw bolt for the lateral wall and the mounting hole of screw rod support tightly, prevent that the screw rod is not hard up to break away from the mounting hole, and fixed effect is better.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a check bolt according to an embodiment of the present application;

FIG. 2 is a schematic view of a screw structure of a check bolt according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a screw head of a check bolt according to an embodiment of the present application;

FIG. 4 is a schematic view of a stud structure of a check bolt according to an embodiment of the present application;

fig. 5 is a schematic structural view of a clamping element of a check bolt according to an embodiment of the present disclosure.

In the figure: 1. a screw head; 2. a screw; 3. a stud; 4. a through groove; 5. a threaded hole; 6. a counter bore; 7. a clamping element; 8. and a through hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without making any creative effort, shall fall within the protection scope of the present application.

A specific embodiment of the present application provides a check bolt, as shown in fig. 1 to 4, including: the bolt comprises a bolt head 1, a screw rod 2 and a whole bolt body formed by fixedly connecting the screw rod 2 to the bolt head 1. Set up screw hole 5 on the terminal surface of screw rod 2 keep away from spiral shell head 1 one end for screw hole 5 is coaxial with screw rod 2, and the axis of screw hole 5 is on same straight line with the axis of screw rod 2 promptly. Set up logical groove 4 on the lateral wall of screw rod 2, lead to groove 4 and run through 5 lateral walls of screw hole to lead to groove 4 intercommunication screw rod 2's lateral wall and 5 lateral walls of screw hole. The through groove 4 simultaneously penetrates through one end of the screw rod 2 far away from the screw head 1. The anti-loosening bolt further comprises a stud 3, the stud 3 comprises a first end and a second end, and the diameter of the stud 3 is sequentially increased from the first end to the second end. And the diameter of the first end of the stud 3 is smaller than that of the threaded hole 5, and the diameter of the second end of the stud 3 is larger than that of the threaded hole 5.

When using this check bolt, insert screw rod 2 in the mounting hole, insert screw hole 5 with the first end of double-screw bolt 3, then progressively screw in, because the diameter of double-screw bolt 3 increases from first end to second end in proper order, screw rod 2 is backed up to the periphery by double-screw bolt 3 for the lateral wall and the mounting hole of screw rod 2 support tightly, prevent that screw rod 2 is not hard up to break away from the mounting hole, and fixed effect is better.

As an alternative implementation, in the specific embodiment of the present application, as shown in fig. 1 to 4, a snap-in element 7 is further included. During the use, insert screw rod 2 in the mounting hole, insert screw hole 5 with the first end of double-screw bolt 3 in, then progressively screw in, because the diameter of double-screw bolt 3 increases from first end to second end in proper order, screw rod 2 is backed up to the periphery by double-screw bolt 3 for the lateral wall and the mounting hole of screw rod 2 support tightly, prevent that screw rod 2 from becoming flexible. At this time, the clamping element 7 is used for connecting the side wall of the threaded hole 5 and the stud 3 and is used for fixing the stud 3 and preventing the stud 3 from loosening and separating from the threaded hole 5.

As shown in fig. 1 and 5, the clamping element 7 may be a snap spring, and after the stud 3 is screwed into the threaded hole 5, the snap spring is clamped into the threaded hole 5, so that the end surface of the snap spring abuts against the second end of the stud, and the side edge of the snap spring abuts against the side wall of the threaded hole 5, so that the stud 3 is clamped in the threaded hole 5, thereby effectively preventing the stud 3 from loosening and separating from the threaded hole 5, and further preventing the screw rod 2 from separating from the mounting hole.

As an alternative implementation manner, in the specific embodiment of the present application, as shown in fig. 2, the width of the through slot 4 is decreased from the screw rod 2 to the screw head 1 in sequence. The width that leads to groove 4 reduces in proper order, and the intensity of screw rod 2 increases in proper order, when guaranteeing that the lateral wall of screw rod 2 can expand outward, has higher intensity. The screw rod 2 is prevented from being broken at the through groove 4 in the using process.

As shown in fig. 2, wherein the through-slots 4 may be triangular in shape. The width that leads to groove 4 reduces in proper order from screw rod 2 to spiral shell head 1 until disappearing, when guaranteeing that the lateral wall of screw rod 2 can expand outward, has higher intensity, increases screw rod 2's life.

As an alternative implementation manner, in the specific embodiment of the present application, as shown in fig. 2, there are a plurality of through grooves 4, and there may be three through grooves, where three through grooves are uniformly arranged along the circumferential direction of the screw rod 2, so as to divide the screw rod 2 into three parts. When using this check bolt, insert screw rod 2 in the mounting hole, insert screw hole 5 with the first end of double-screw bolt 3 in, then progressively screw in, because the diameter of double-screw bolt 3 increases from first end to second end in proper order, the three of screw rod 2 is backed up to the periphery by double-screw bolt 3 for the three of screw rod 2 supports tightly with the mounting hole, prevents that screw rod 2 is not hard up, and fixed effect is better.

Alternatively, in the specific embodiment of the present application, as shown in fig. 1 and 4, a counter bore 6 is provided at the second end of the stud 3, wherein the counter bore 6 is shaped as a multi-edge for a screwdriver to insert to screw the stud 3. The screw bolt 3 is convenient for a user to apply force and is more convenient to screw.

When the anti-loosening bolt is used, the screw rod 2 is inserted into the mounting hole, the first end of the stud 3 is inserted into the threaded hole 5, the stud 3 is screwed by the screwdriver, the stud 3 is gradually screwed into the threaded hole 5, the diameter of the stud 3 is sequentially increased from the first end to the second end, and the screw rod 2 is pushed open towards the periphery by the stud 3, so that the outer side wall of the screw rod 2 is tightly abutted to the mounting hole, the screw rod 2 is prevented from loosening, and the fixing effect is better.

As shown in fig. 1 and 4, the counter bore 6 is a hexagon socket counter bore, so that the stud 3 can be screwed by using a common hexagon socket tool, and the force application is more convenient.

As an alternative embodiment, in the specific embodiment of the present application, as shown in fig. 3, a through hole 8 is provided on the screw head 1, the inner diameter of the through hole 8 is the same as the inner diameter of the threaded hole 5, and the through hole 8 is coaxially provided and communicates with the threaded hole 5. On the premise of ensuring the strength, the material of the screw head 1 is reduced, the weight of the screw head 1 is reduced, and the manufacturing cost is reduced.

A specific embodiment of the present application provides a fixing device, including: the check bolt, wherein the check bolt is above arbitrary check bolt.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In this application, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A check bolt, comprising: screw head (1), connection screw rod (2) and double-screw bolt (3) on the screw head, keep away from screw rod (2) the one end of screw head (1) sets up screw hole (5), screw hole (5) with screw rod (2) are coaxial, set up on screw rod (2) and run through logical groove (4) of screw hole (5) lateral wall, it runs through to lead to groove (4) screw rod (2) are kept away from the one end of screw head (1), the diameter of double-screw bolt (3) increases from first end to second end in proper order, the diameter of the first end of double-screw bolt (3) is less than the diameter of screw hole (5), the diameter of the second end of double-screw bolt (3) is greater than the diameter of screw hole (5), the first end screw in of double-screw bolt (3) screw in screw hole (5).

2. Anti-loose bolt according to claim 1, characterized in that it further comprises a snap-in element (7), said snap-in element (7) connecting said stud (3) and a side wall of said threaded hole (5) for fixing said stud (3).

3. The anti-loose bolt according to claim 2, characterized in that the clamping element (7) is a snap spring, the end surface of the snap spring abuts against the stud (3), and the side edge of the snap spring abuts against the side wall of the threaded hole (5).

4. Anti-loose bolt according to claim 1, characterized in that the width of the through slot (4) decreases in the order from the screw (2) to the screw head (1).

5. A check bolt according to claim 4, characterised in that the through slot (4) is triangular in shape.

6. Anti-loose bolt according to claim 1, characterized in that the through slots (4) are provided in plurality and uniformly arranged along the circumference of the screw (2).

7. Anti-loose bolt according to claim 1, characterized in that the end face of the second end of the stud (3) is provided with a counter bore (6) for a screwdriver to screw.

8. Anti-loose bolt according to claim 7, characterized in that the counterbore (6) is an inner hexagonal counterbore.

9. The anti-loose bolt according to claim 1, characterized in that the head (1) is provided with a through hole (8), and the through hole (8) is coaxial and communicated with the threaded hole (5).

10. A fixation device, comprising: a check bolt as claimed in any one of claims 1 to 9.