CN220286171U - Fixing bolt and fastening assembly - Google Patents

Abstract

The utility model provides a fixing bolt and a fastening assembly, and relates to the technical field of fastening. Compared with the prior art, the fixing bolt provided by the utility model has the advantages that the fastening convex blocks on the threaded rod are used for embedding the fastening pieces, so that the supporting and fixing are realized, the vibration shearing force can be reduced, the fastening pieces are prevented from loosening, and the fastening effect and the fastening safety are ensured.

Description

Fixing bolt and fastening assembly

Technical Field

The utility model relates to the technical field of fastening, in particular to a fixing bolt and a fastening assembly.

Background

A bolt is a mechanical part, with a cylindrical threaded fastener of a nut. The bolt is a fastener commonly used in daily life, and can be screwed or unscrewed by using a spanner, and the bolt is loosened due to the fact that the fastener has mechanical vibration or shearing force in the screw, and the pretightening force is easily reduced, so that the fastening effect is influenced.

Disclosure of Invention

The utility model aims to provide a fixing bolt and a fastening assembly, which can prevent a fastening structure from loosening and ensure the fastening effect and safety.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the present utility model provides a fixing bolt, including a bolt head and a threaded rod, where the bolt head is integrally disposed at one end of the threaded rod, threads are disposed on a circumferential surface of the threaded rod, the threaded rod is configured to be assembled with a fastener through the threads, and fastening protrusions are further disposed on the circumferential surface of the threaded rod, and the fastening protrusions are configured to be embedded into the fastener to fix the fastener.

In an alternative embodiment, the fastening lugs are multiple, the fastening lugs are distributed on the circumferential surface of the threaded rod along the circumferential direction, and the fastening lugs are all used for being embedded into the fastening piece.

In an alternative embodiment, the height of the protrusions of each fastening tab relative to the circumference of the threaded rod is greater than or equal to the height of the protrusions of the thread relative to the weekends of the threaded rod.

In an alternative embodiment, the width of each fastening lug in the axial direction of the threaded rod is adapted to the pitch of the thread, so that the fastening lug engages in the internal thread gap of the fastening element.

In an alternative embodiment, each of the fastening lugs has a rectangular cross section in a direction parallel to the axis of the threaded rod.

In an alternative embodiment, each of the fastening lugs is provided with a guide slope on both sides in the circumferential direction, the guide slope extending to the circumferential surface of the threaded rod so that the circumferential width of the fastening lug gradually decreases in a direction away from the circumferential surface of the threaded rod.

In an alternative embodiment, the thread comprises a first thread segment and a second thread segment, the first thread segment and the second thread segment being spaced apart, the first thread segment being engaged to the bolt head, the fastening tab being disposed between the first thread segment and the second thread segment, and at least one of the first thread segment and the second thread segment being used to assemble the fastener.

In an alternative embodiment, the screw thread is spaced from the bolt head, and the fastening tab is located at an end of the screw thread adjacent to the bolt head.

In alternative embodiments, the bolt head is hexagonal, rectangular or pentagonal.

In a second aspect, the present utility model provides a fastening assembly comprising a fastener and a fixing bolt according to any of the preceding embodiments, the threaded rod being assembled with the fastener by means of the thread.

The beneficial effects of the embodiment of the utility model include:

according to the fixing bolt and the fastening assembly provided by the embodiment of the utility model, the bolt head is integrally arranged at one end of the threaded rod, the periphery of the threaded rod is provided with threads, the threaded rod is assembled with the fastening piece through the threads, the periphery of the threaded rod is also provided with the fastening protruding block, and the fastening protruding block can be embedded into the fastening piece, so that the fastening piece is fixed. Compared with the prior art, the fixing bolt provided by the utility model has the advantages that the fastening convex blocks on the threaded rod are used for embedding the fastening pieces, so that the supporting and fixing are realized, the vibration shearing force can be reduced, the fastening pieces are prevented from loosening, and the fastening effect and the fastening safety are ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a first embodiment of the present utility model at a first viewing angle;

FIG. 2 is a schematic diagram of the structure of the first embodiment of the present utility model at a second view angle;

FIG. 3 is a schematic view of a second embodiment of the present utility model at a first viewing angle;

FIG. 4 is a schematic structural view of a second embodiment of the present utility model at a second viewing angle;

fig. 5 is a schematic structural view of a third embodiment of the present utility model.

Icon:

100-fixing bolts; 110-bolt head; 130-a threaded rod; 131-threading; 133-a first thread segment; 135-a second thread segment; 150-fastening lugs.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model 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 utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between 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.

As disclosed in the background art, the bolts in the prior art are usually only matched with the nuts through threads, and due to mechanical vibration or shearing force in the screw, the pretightening force is easily reduced, so that the nuts are loosened, the fastening effect is influenced, and even the connection safety is influenced.

Further, in order to prevent that the nut from becoming flexible among the prior art, the structure that has still appeared additionally setting up fastening nut is equipped with fastening nut in screw rod one side that is close to the bolt head, screws up through fastening nut direction, and the effectual bolt that prevents is not hard up improves practicality and stability. However, this structure increases the cost on the one hand and also increases the number of parts, which is disadvantageous in terms of simplification of the fastening structure.

In order to solve the above problems, the present utility model provides a novel fixing bolt and a fastening assembly, and a specific structure of the novel fixing bolt will be described in detail.

First embodiment

Referring to fig. 1 and 2, the present embodiment provides a fixing bolt 100, which can prevent loosening of a fastening structure, and ensure fastening effect and safety.

The present embodiment provides a fixing bolt 100, including a bolt head 110 and a threaded rod 130, the bolt head 110 is integrally disposed at one end of the threaded rod 130, the circumferential surface of the threaded rod 130 is provided with threads 131, the threaded rod 130 is used for assembling with a fastener through the threads 131, and the circumferential surface of the threaded rod 130 is further provided with a fastening bump 150, and the fastening bump 150 is used for embedding the fastener to fix the fastener.

In this embodiment, the bolt head 110 and the threaded rod 130 are integrally provided, the bolt head 110 is integrally provided at one end of the threaded rod 130, the circumferential surface of the threaded rod 130 is provided with threads 131, the threaded rod 130 is assembled with a fastener through the threads 131, the circumferential surface of the threaded rod 130 is further provided with a fastening projection 150, and the fastening projection 150 can be embedded into the fastener, thereby fixing the fastener. The fastening lug 150 on the threaded rod 130 is utilized to be embedded into the fastening piece, so that the supporting and fixing can be realized, the vibration shearing force can be reduced, the fastening piece is prevented from loosening, and the fastening effect and the fastening safety are ensured.

It should be noted that, in this embodiment, the fastener may be a nut, the nut is assembled on the threaded rod 130, and the fastening bump 150 is embedded in the internal thread of the nut, so as to achieve the holding and fixing, and reduce the vibration shear force, so as to prevent the fastener from loosening. Of course, in other preferred embodiments of the present utility model, the fastener may be other structural members such as a fixing plate, and the fixing plate may be provided with a screw hole to cooperate with the threaded rod 130. The specific type and configuration of the fastener is not limited herein.

In the present embodiment, the fastening protrusions 150 are a plurality of, the plurality of fastening protrusions 150 are distributed on the circumferential surface of the threaded rod 130 along the circumferential direction, and the plurality of fastening protrusions 150 are all used for embedding the fastening members. Specifically, the plurality of fastening protrusions 150 are uniformly distributed on the circumferential surface of the threaded rod 130 and protrude outwards relative to the circumferential surface of the threaded rod 130, and after the fastening member is screwed, the fastening protrusions 150 can be embedded into the internal threads on the inner side of the fastening member, so that the abutting fixation is realized. Preferably, the number of the fastening protrusions 150 may be 6, and the 6 fastening protrusions 150 are uniformly distributed on the circumference of the threaded rod 130 and along the same circumference. Of course, the number of fastening tabs 150 is merely illustrative and not intended to be limiting in any way.

In the present embodiment, the protrusion height of each fastening boss 150 with respect to the circumferential surface of the threaded rod 130 is greater than or equal to the protrusion height of the threads 131 with respect to the weekends of the threaded rod 130. Preferably, the height of the protrusion of each fastening boss 150 with respect to the circumferential surface of the threaded rod 130 is greater than the height of the threads 131, so that the fastening boss 150 can be surely embedded in the fastener.

The height of the protrusion of the fastening bump 150 with respect to the circumferential surface of the threaded rod 130 herein refers to the radial height of the fastening bump 150 protruding outwards, and specifically may be the difference between the maximum distance between the fastening bump 150 and the axis of the threaded rod 130 and the radius of the threaded rod 130.

In the present embodiment, the width of each fastening boss 150 in the axial direction of the threaded rod 130 is adapted to the pitch of the threads 131 so that the fastening boss 150 is inserted into the internal thread 131 gap of the fastener. Specifically, the width of each fastening boss 150 in the axial direction of the threaded rod 130 is slightly smaller than the thread pitch, so that the fastening boss 150 can be ensured to be embedded in the fastener, and since the grooves formed between the threads 131 are not strictly uniform in width, the fastening boss 150 can be always embedded in the internal thread clearance of the fastener to achieve the anti-loosening effect.

In the present embodiment, each of the fastening protrusions 150 has a rectangular cross section in the axial direction parallel to the threaded rod 130. Specifically, the two sides of each fastening projection 150 along the vertical direction are vertical side walls, so that the fastening projections can be ensured to be smoothly clamped into the internal threads of the fastening piece.

In the present embodiment, each of the fastening protrusions 150 is provided at both sides in the circumferential direction with guide slopes extending to the circumferential surface of the threaded rod 130 such that the circumferential width of the fastening protrusion 150 gradually decreases in a direction away from the circumferential surface of the threaded rod 130. Specifically, the guide inclined planes are formed on two sides of each fastening lug 150 along the circumferential direction, so that the cross section of each fastening lug 150 is approximately trapezoid or semicircular, and the guide inclined planes can play a good guiding role in the process of clamping the fastening piece, so that the top ends of the fastening lugs 150 can be conveniently and smoothly clamped into the internal threads of the fastening piece.

In the present embodiment, the screw thread 131 includes a first screw thread section 133 and a second screw thread section 135, the first screw thread section 133 and the second screw thread section 135 are disposed at intervals, the first screw thread section 133 is coupled to the bolt head 110, the fastening boss 150 is disposed between the first screw thread section 133 and the second screw thread section 135, and at least one of the first screw thread section 133 and the second screw thread section 135 is used for assembling a fastener. Specifically, the fastener may be threadably engaged with both the first and second threaded segments 133, 135 such that the fastening tab 150 is captured in an intermediate position of the fastener. By segmenting the threads 131 and employing a smooth structure between the first thread segments 133 and the second thread segments 135, the fabrication of the fastening tab 150 can be facilitated and process difficulties reduced. Meanwhile, the periphery of the fastening convex block 150 is not interfered by threads, so that the difficulty of embedding the fastening convex block 150 into a fastener can be reduced.

It should be noted that, in this embodiment, the screw directions of the first thread segment 133 and the second thread segment 135 may be the same or different, and when the screw directions of the first thread segment 133 and the second thread segment 135 are different, the first thread segment 133 below may have a self-locking effect, so as to further prevent loosening of the fastener.

In this embodiment, the bolt head 110 has a hexagonal shape, a rectangular shape, or a pentagonal shape. Preferably, the bolt head 110 in this embodiment is in a regular hexagon shape, which is convenient for screwing with a hexagonal wrench. The shape of the bolt head 110 is merely illustrative and not intended to be limiting in any way.

In summary, in the fixing bolt 100 provided by the embodiment of the utility model, the bolt head 110 is integrally disposed at one end of the threaded rod 130, the thread 131 is disposed on the circumferential surface of the threaded rod 130, the threaded rod 130 is assembled with the fastener through the thread 131, the fastening protrusion 150 is further disposed on the circumferential surface of the threaded rod 130, and the fastening protrusion 150 can be embedded into the fastener, so as to fix the fastener. Compared with the prior art, the fixing bolt 100 provided in this embodiment utilizes the fastening lug 150 on the threaded rod 130 to embed the fastening piece, so as to realize the supporting and fixing, and reduce the vibration shear force, thereby preventing the fastening piece from loosening and ensuring the fastening effect and the fastening safety.

Second embodiment

Referring to fig. 3 and 4, the present embodiment provides a fixing bolt 100, which has the same basic structure and principle and technical effects as those of the first embodiment, and for brevity, reference is made to the corresponding contents of the first embodiment where the description of the embodiment is not mentioned.

In the present embodiment, the screw 131 is spaced apart from the bolt head 110, and the fastening boss 150 is located at one end of the screw 131 near the bolt head 110. Specifically, the screw 131 is provided at an upper portion of the threaded rod 130, while a lower portion of the threaded rod 130 is integrally connected with the bolt head 110 with a certain distance between the screw 131 and the bolt head 110, and the fastening boss 150 is located at a lower end of the screw 131.

It should be noted that, in this embodiment, the fastening bump 150 is disposed at the protruding section of the thread 131 and protrudes outwards, so as to achieve a good fixing effect on the fastening member.

During the actual fastening process, the fastener is cooperatively tightened along the thread 131 until the fastener is tightened near the fastening boss 150, and the fastening boss 150 can be stably embedded into the inside of the fastener, thereby securing the fixing effect. The mode that screw threads 131 are arranged at intervals makes the requirement of the fixing bolt 100 on the range of the internal screw threads 131 of the fastener lower, and the fixing bolt can be suitable for fasteners with different sizes and has better applicability.

Third embodiment

The present embodiment provides a fixing bolt 100, which has the same basic structure and principle and technical effects as those of the first embodiment, and for brevity, reference is made to the corresponding contents of the first embodiment where the description of the embodiment is not mentioned.

Referring to fig. 5, in the present embodiment, the screw thread 131 includes a first screw thread section 133 and a second screw thread section 135, the first screw thread section 133 and the second screw thread section 135 are spaced apart, the first screw thread section 133 is coupled to the bolt head 110, the fastening boss 150 is disposed between the first screw thread section 133 and the second screw thread section 135, and the first screw thread section 133 and the second screw thread section 135 are each used for assembling a fastener. Specifically, a cylindrical structure is formed between the first thread section 133 and the second thread section 135, the fastening protrusion 150 is disposed on the outer circumferential surface of the cylindrical structure, and the cylindrical structure is of a split type structure including left and right half structures, wherein the left half cylindrical structure is integrally formed with the rest of the upper and lower threaded rods 130 at the same time, and the right half cylindrical structure is of an embedded state and can generate a minute displacement.

In the actual fastening process, the fastening piece is tightened, so that the split type cylindrical structure can be tightened, the fastening lug 150 is embedded into the fastening piece, and fixation and loosening prevention are realized. In the unscrewing process, the split type cylindrical structure is in an outward expansion state, so that the fastener can be prevented from loosening, and loosening or poor fastening caused by vibration and other factors can be further prevented.

Fourth embodiment

The present embodiment provides a fastening assembly including a fastening member (not shown) and a fixing bolt 100, wherein the basic structure and principle of the fixing bolt 100 and the technical effects thereof are the same as those of the first embodiment or the second embodiment, and for brevity, reference is made to the corresponding matters in the first embodiment or the second embodiment where the parts of the present embodiment are not mentioned.

In this embodiment, the threaded rod 130 is assembled with a fastener through the thread 131, in particular, the fastener may be a nut, the nut is assembled on the threaded rod 130, and the fastening protrusion 150 is embedded in the internal thread 131 of the nut, so as to achieve the abutting fixation, and reduce the vibration shearing force, thereby preventing the fastener from loosening. Of course, in other preferred embodiments of the present utility model, the fastener may be other structural members such as a fixing plate, and the fixing plate may be provided with a screw hole to cooperate with the threaded rod 130. The specific type and configuration of the fastener is not limited herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a fixing bolt, its characterized in that includes bolt head and threaded rod, the bolt head is integrative to be set up the one end of threaded rod, the global screw thread that is provided with of threaded rod, the threaded rod is used for through screw thread and fastener assembly, just the global fastening lug that still is provided with of threaded rod, fastening lug is used for the embedding the fastener is in order to fix the fastener.

2. The fixing bolt according to claim 1, wherein the fastening protrusions are a plurality of, the fastening protrusions are circumferentially distributed on the circumferential surface of the threaded rod, and the fastening protrusions are each used for being embedded into the fastening member.

3. The fixing bolt according to claim 2, wherein a protrusion height of each of the fastening projections with respect to a circumferential surface of the threaded rod is greater than or equal to a protrusion height of the thread with respect to a weekend of the threaded rod.

4. The fixing bolt according to claim 2, wherein a width of each of the fastening projections in an axial direction of the threaded rod is adapted to a pitch of the thread so that the fastening projection is inserted into an internal thread gap of the fastener.

5. The fixing bolt according to claim 4, wherein each of the fastening projections is rectangular in cross section in a direction parallel to an axis of the threaded rod.

6. A fixing bolt according to claim 2, wherein each of the fastening lugs is provided with guide slopes on both sides in the circumferential direction, the guide slopes extending to the circumferential surface of the threaded rod so that the fastening lugs gradually decrease in circumferential width in a direction away from the circumferential surface of the threaded rod.

7. The fixing bolt of claim 2 wherein the threads comprise a first thread segment and a second thread segment, the first thread segment and the second thread segment being spaced apart, the first thread segment being engaged to the bolt head, the fastening tab being disposed between the first thread segment and the second thread segment, and at least one of the first thread segment and the second thread segment being used to assemble the fastener.

8. The fixing bolt according to claim 2, wherein the thread is spaced from the bolt head, and the fastening boss is located at an end of the thread adjacent to the bolt head.

9. The fixing bolt according to claim 1, wherein the bolt head is hexagonal, rectangular or pentagonal.

10. A fastening assembly comprising a fastener and a fixing bolt according to any one of claims 1 to 9, said threaded shank being assembled with said fastener by means of said thread.