CN220566390U

CN220566390U - Bolt fastening assembly

Info

Publication number: CN220566390U
Application number: CN202322208089.8U
Authority: CN
Inventors: 封叶
Original assignee: Qida Rail Transit Technology Co ltd
Current assignee: Qida Rail Transit Technology Co ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-03-08
Anticipated expiration: 2033-08-16

Abstract

The utility model discloses a bolt fastening assembly, which comprises a threaded rod piece, wherein the threaded rod piece comprises a nut and a screw, and the nut and the screw are integrally formed. And the thread head is detachably connected with the screw rod. And the fastening sleeve is detachably connected with the screw rod. The upper side and the lower side of the fastening ring are respectively sleeved on the outer sides of the fastening sleeve and the threaded head to lock the fastening sleeve. The utility model relates to the technical field of bolts, in particular to a bolt fastening assembly, which is characterized in that an existing bolt is improved, an existing integrally formed bolt is changed into a detachable assembly, so that a threaded assembly is matched with threaded heads of various types, the purpose of multiple purposes of the bolt is achieved, the universality of the bolt is greatly improved, the stock of enterprises is reduced, the cost is saved, and the field installation is facilitated.

Description

Bolt fastening assembly

Technical Field

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

Background

Bolts commonly known as industry rice are often matched with nuts for use, and are widely applied to various industries, under the normal condition, the environment of the bolts is severe and is often affected by vibration, impact and the like, so that the service lives of the bolts are limited, and the bolts need to be replaced periodically in some occasions with higher requirements.

At present, although the existing bolts are numerous in types, the bolt shape specification of each model is different, and the bolts are formed by integrally forming (the purpose is that the integral structure is strong and is not easy to fall off), namely, the single bolts of one model can only be used under a single working condition, and the bolts of various models cannot be exchanged for use, so that people have to select and prepare the bolts of various models in one project, the workload is increased, and meanwhile, the project cost is increased because the universality of the existing bolts is poor.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides a bolt fastening assembly, which solves the problem of poor universality of the existing industrial bolts.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the screw bolt fastening assembly comprises a threaded rod piece, wherein the threaded rod piece comprises a nut and a screw, and the nut and the screw are integrally formed.

And the thread head is detachably connected with the screw rod.

And the fastening sleeve is detachably connected with the screw rod.

The upper side and the lower side of the fastening ring are respectively sleeved on the outer sides of the fastening sleeve and the threaded head to lock the fastening sleeve.

As a further preferable mode, a first clamping groove for inserting the threaded head is formed in the bottom of the screw, a cavity is formed in the side wall of the first clamping groove in an outward extending mode along the axial direction, and a telescopic elastic clamping piece is arranged in the cavity.

As a further preferable mode, the elastic clamping piece comprises a first spring and a clamping head, the first spring is wound on the outer wall of the clamping head, and the left side and the right side of the clamping head are respectively provided with a hemispherical first clamping protrusion and a hemispherical second clamping protrusion.

As a further preferable mode, the top of the threaded head is provided with an insertion head capable of being inserted into the first clamping groove, and the side part of the insertion head is provided with a second clamping groove capable of being inserted by the first clamping protrusion.

As a further preferred option, the top of the screw head is provided with a conical step which prevents the tightening sleeve from sinking.

As a further preferable mode, the inner side wall of the fastening sleeve is provided with a blind groove along the axial outward direction, an anti-falling clamping piece is arranged in the blind groove, and the anti-falling clamping piece can apply the axial inward pressure to the elastic clamping piece so that the elastic clamping piece can be automatically clamped into the second clamping groove.

As a further preferable mode, the anti-falling clamping piece comprises a second spring and a third clamping protrusion, one side, away from the second spring, of the third clamping protrusion is an inclined surface, an inclined inward inclined step is arranged at the bottom of the screw rod, and the inclination of the inclined step is consistent with that of the inclined surface of the third clamping protrusion.

As a further preferable mode, a thread groove is formed in one side, close to the second spring, of the third clamping protrusion, an outer hole communicated with the hidden groove is formed in the side wall of the fastening sleeve, and the third clamping protrusion can be reset through the outer hole, so that the thread head is separated from the thread rod piece.

As a further preferable aspect, the outer wall of the fastening sleeve is attached with a rubber seal to prevent rainwater from entering the outer hole.

As a further preferable mode, the top of the nut is provided with a containing groove, and a rotatable rotating handle is arranged in the containing groove.

(III) beneficial effects

The utility model provides a bolt fastening assembly. The beneficial effects are as follows:

according to the bolt fastening assembly, the existing bolt is improved, the existing integrally formed bolt is changed into the detachable assembly, so that one threaded assembly is matched with thread heads of various types, the purpose of multiple purposes of the bolt is achieved, the universality of the bolt is greatly improved, the stock of enterprises is reduced, the cost is saved, and the field installation is facilitated; further, in order to solve the problem that the overall strength of the detachable bolt is poor, the bolt adopts an anti-falling component, and the falling phenomenon of the bolt caused by poor anti-vibration and anti-collision performances can be effectively solved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the structure of the present utility model;

FIG. 3 is a partial cross-sectional view of the present utility model;

FIG. 4 is a cross-sectional view of the construction of the fastening sleeve of the present utility model;

FIG. 5 is an enlarged view of the structure of the present utility model at A.

In the figure: 1. a threaded rod; 11. a screw cap; 12. a screw; 121. a first clamping groove; 122. a first spring; 123. a chuck; 1231. the first clamping protrusion; 1232. the second clamping protrusion; 124. an inclined step; 2. a thread head; 21. a plug part; 211. a second clamping groove; 22. a conical step; 3. a fastening sleeve; 31. a hidden groove; 32. a second spring; 33. a third clamping protrusion; 331. a thread groove; 34. an outer aperture; 4. a fastening ring; 5. sealing with rubber; 6. a receiving groove; 7. a rotating handle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

As shown in fig. 1-5, the present utility model provides a technical solution: a bolt fastening assembly comprises a threaded rod 1, wherein the threaded rod 1 comprises a nut 11 and a screw 12, the nut 11 can be round, polygonal or other shapes, and the nut 11 and the screw 12 are integrally formed.

A threaded head 2, the threaded head 2 being removably connected, preferably screwed, to the screw 12.

The top of the screw head 2 is provided with a plug part 21 which can be inserted into the first clamping groove 121, and the side part of the plug part 21 is provided with a second clamping groove 211 which can be inserted by the first clamping protrusion 1231.

The fastening sleeve 3 is detachably connected with the screw 12, preferably in a threaded manner, and the depth of the threads is determined at the beginning of design, and the standard is that when the first clamping groove 121 coincides with the hidden groove 21, the fastening sleeve 3 is fixed on the outer wall of the screw 12, and the top of the threaded head 2 of the first clamping groove 121 is provided with a conical step 22, and the conical step 22 can prevent the fastening sleeve 3 from sinking.

The tapered step 22 is larger in size than the tightening sleeve 3, preventing the tightening sleeve 3 from sinking onto the outer wall of the screw head 2 during vibration.

The inner side wall of the fastening sleeve 3 is provided with a hidden groove 31 along the axial outward direction, an anti-falling clamping piece is arranged in the hidden groove 31, and the anti-falling clamping piece can apply the axial inward pressure to the elastic clamping piece so that the elastic clamping piece can be automatically clamped into the second clamping groove 211.

The fastening ring 4 is sleeved on the outer sides of the fastening sleeve 3 and the thread head 2 on the upper side and the lower side of the fastening ring 4 respectively, and locks the fastening sleeve 3.

The purpose of the fastening ring 4 is to fix the fastening sleeve 3, which is located between the screw head 2 and the fastening sleeve 3 and can be partly screwed on the outside of the fastening sleeve 3 and partly screwed with the outside of the conical step 22.

The top of nut 11 has seted up holding tank 6, is provided with rotatable stem 7 in the holding tank 6, and the purpose that sets up stem 7 can directly rotate stem 7, can dismantle the bolt, and of course stem 7 still can set up in the outside of nut 11.

The bottom of the screw rod 12 is provided with a first clamping groove 121 for inserting the thread head 2, the side wall of the first clamping groove 121 extends outwards along the axial direction to form a cavity, and a telescopic elastic clamping piece is arranged in the cavity.

The elastic clamping piece comprises a first spring 122 and a clamping head 123, the first spring 122 is wound on the outer wall of the clamping head 123, the left side and the right side of the clamping head 123 are respectively provided with a hemispherical first clamping boss 1231 and a hemispherical second clamping boss 1232, and the first clamping boss 1231 and the second clamping boss 1232 are both positioned in the first clamping groove 121 under the state that no external force is applied.

The anti-falling clamping piece comprises a second spring 32 and a third clamping protrusion 33, one side of the third clamping protrusion 33 away from the second spring 32 is an inclined surface, the bottom of the screw 12 is provided with an inclined step 124 which is inclined inwards, and the inclination of the inclined step 124 is consistent with that of the inclined surface of the third clamping protrusion 33.

The thread groove 331 is offered to the protruding 33 one side that is close to the second spring 32 of third card, and the outer hole 34 that switches on with the blind groove 31 has been offered to the lateral wall of adapter sleeve 3, and the outer wall laminating of adapter sleeve 3 has rubber seal 5 in order to prevent that the rainwater from getting into outer hole 34, and rubber seal 5 is disposable consumptive material, thereby can make the protruding 33 of third card reset through this outer hole 34 and make thread head 2 and screw rod piece 1 separation.

And all that is not described in detail in this specification is well known to those skilled in the art.

In use, the whole structure of the assembly bolt is taken as an example, as shown in fig. 2, in the first step, the assembly of the threaded head 2 and the threaded rod 1 is completed, the plug portion 21 at the top of the threaded head 2 is aligned with the first clamping groove 121 at the bottom of the screw 12, then the plug portion 21 is inserted into the first clamping groove 121, in order to fix the position direction of the plug portion 21 conveniently, after the plug portion 21 is completely inserted into the first clamping groove 121, the second clamping groove 211 is exactly aligned with the cavity extending from the side wall of the first clamping groove 121, and the plug portion 21 and the first clamping groove 121 can be connected by threads (positioning protrusions can also be arranged on the side wall of the plug portion 21, positioning grooves are formed in the first clamping groove 121, and the positioning protrusions are matched with the positioning grooves for use, but are not limited to the two ways).

In the second step, the fastening sleeve 3 is installed, and it should be noted that, before the first step, the fastening sleeve 3 needs to be placed on the outer side of the screw 12, so that the fastening sleeve is in a state to be assembled, after the threaded head 2 is installed, a downward rotation force is applied to the threaded rod 1, as shown in fig. 4, so that the inclined step 124 longitudinally passes through the fastening sleeve 3, and presses the third clamping protrusion 33, so that the second spring 32 contracts to store the force until the first clamping groove 121 coincides with the blind groove 31, at this time, the third clamping protrusion 33 is automatically ejected out due to the deformation recovery of the second spring 32, and the third clamping protrusion 33 enters into the first clamping groove 121 during the ejection, and further presses the second clamping protrusion 1232, so that the first spring 122 stretches to store the force, and then the first clamping protrusion 1231 is clamped into the second clamping groove 211, so as to limit the plug part 21, preventing the plug part 21 and the threaded rod 1 from falling off during the vibration and impact process of the bolt, and further preventing the third clamping protrusion 33 from falling off between the fastening sleeve 3 and the threaded rod 1.

The screw rod piece 1 in this application is the general spare, and the model is fixed, and screw head 2 is non-standard spare, can design into different shapes, models as required on site, like cylindrical, hexagon, short thick type or slender type etc. in the actual installation, only need the screw head 2 of corresponding model with screw rod piece 1 collocation use can, simple high-efficient, extensive applicability.

It should be noted that, if the threaded head 2 needs to be replaced, the bolt is first disassembled integrally, then the wrench (with threads) is inserted into the blind groove 31 through the outer hole 34 until the wrench is inserted into the threaded groove 331, then the wrench is pulled outwards to pull the third clamping protrusion 33 back into the blind groove 31, so as to release the limitation of the second clamping protrusion 1232, then the first spring 122 resets, so as to drive the first clamping protrusion 1231 to leave from the second clamping groove 211 and reset, so as to release the limitation of the threaded head 2, and then the threaded head 2 is removed.

In summary, according to the bolt fastening assembly, the existing bolt is improved, and the existing integrally formed bolt is changed into the detachable assembly, so that one threaded assembly is matched with thread heads of various types, the purpose of one object and multiple purposes of the bolt is achieved, the universality of the bolt is greatly improved, the stock of enterprises is reduced, the cost is saved, and the field installation is facilitated; further, in order to solve the problem that the overall strength of the detachable bolt is poor, the bolt adopts an anti-falling component, and the falling phenomenon of the bolt caused by poor anti-vibration and anti-collision performances can be effectively solved.

It is noted that relational terms such as first and second, and the like are 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. Moreover, 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.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A bolt-up assembly, characterized in that: the screw rod comprises a screw rod piece (1), wherein the screw rod piece (1) comprises a screw cap (11) and a screw rod (12), and the screw cap (11) and the screw rod (12) are integrally formed;

the thread head (2) is detachably connected with the screw rod (12);

the fastening sleeve (3), the fastening sleeve (3) is detachably connected with the screw rod (12);

the upper side and the lower side of the fastening ring (4) are respectively sleeved on the outer sides of the fastening sleeve (3) and the threaded head (2) to lock the fastening sleeve (3).

2. A bolt-up assembly according to claim 1, wherein: the bottom of the screw rod (12) is provided with a first clamping groove (121) for inserting the threaded head (2), the side wall of the first clamping groove (121) extends outwards along the axial direction to form a cavity, and a telescopic elastic clamping piece is arranged in the cavity.

3. A bolt-up assembly according to claim 2, wherein: the elastic clamping piece comprises a first spring (122) and a clamping head (123), the first spring (122) is wound on the outer wall of the clamping head (123), and hemispherical first clamping protrusions (1231) and hemispherical second clamping protrusions (1232) are respectively arranged on the left side and the right side of the clamping head (123).

4. A bolt-up assembly according to claim 3, wherein: the top of the thread head (2) is provided with a plug part (21) which can be inserted into the first clamping groove (121), and the side part of the plug part (21) is provided with a second clamping groove (211) which can be used for inserting the first clamping protrusion (1231).

5. A bolt-up assembly according to claim 1, wherein: the top of the thread head (2) is provided with a conical step (22), and the conical step (22) can prevent the fastening sleeve (3) from sinking.

6. A bolt-up assembly according to claim 4, wherein: the inner side wall of the fastening sleeve (3) is provided with a hidden groove (31) along the axial direction outwards, an anti-falling clamping piece is arranged in the hidden groove (31), and the anti-falling clamping piece can apply axial inwards pressure to the elastic clamping piece so that the elastic clamping piece can be automatically clamped into the second clamping groove (211).

7. A bolt-up assembly according to claim 6, wherein: the anti-falling clamping piece comprises a second spring (32) and a third clamping protrusion (33), one side, away from the second spring (32), of the third clamping protrusion (33) is an inclined surface, an inclined step (124) inclined inwards is arranged at the bottom of the screw rod (12), and the inclination of the inclined step (124) is consistent with that of the inclined surface of the third clamping protrusion (33).

8. A bolt-up assembly according to claim 7, wherein: a thread groove (331) is formed in one side, close to the second spring (32), of the third clamping protrusion (33), an outer hole (34) communicated with the hidden groove (31) is formed in the side wall of the fastening sleeve (3), and the third clamping protrusion (33) can be reset through the outer hole (34) so that the thread head (2) is separated from the thread rod piece (1).

9. A bolt-up assembly according to claim 8, wherein: the outer wall of the fastening sleeve (3) is attached with a rubber seal (5) to prevent rainwater from entering the outer hole (34).

10. A bolt-up assembly according to claim 1, wherein: the top of the nut (11) is provided with a containing groove (6), and a rotatable rotating handle (7) is arranged in the containing groove (6).