CN210013926U

CN210013926U - Screw fastening structure

Info

Publication number: CN210013926U
Application number: CN201920132061.1U
Authority: CN
Inventors: 约书亚·艾伦·唐宁
Original assignee: Castone Technology (beijing) Co Ltd
Current assignee: Castone Technology (beijing) Co Ltd
Priority date: 2018-03-20
Filing date: 2019-01-25
Publication date: 2020-02-04
Anticipated expiration: 2029-01-25

Abstract

The utility model discloses a screw fastening structure, a serial communication port, include: the screw comprises a screw and a first mounting surface with a through hole, wherein a first clamping part is arranged on the inner surface of the tail part of the screw, and a second clamping part is arranged at the contact position of the first mounting surface and the tail part of the screw; under the screw tightening state, the screw rod of screw passes the through-hole of first installation face, and screw afterbody internal surface and first installation face in close contact with, first joint portion and second joint portion looks block. Therefore, the utility model provides a screw fastening structure not only can stably fix and treat the mounting, but also can make and treat that the mounting avoids the harm.

Description

Screw fastening structure

Technical Field

The utility model relates to a fastener field especially indicates a screw fastening structure.

Background

Currently, national economic construction of China is entering a new development stage, and advanced manufacturing represented by large airplanes, large power generation equipment, automobiles, high-speed trains, large ships, large complete equipment and the like also enters an important development direction. Fasteners are a very widely used class of mechanical parts for fastening connections. A wide variety of fasteners are found on a variety of machines, equipment, vehicles, boats, railways, bridges, buildings, structures, tools, instruments, meters, supplies, and the like.

At present, screw type fasteners, often used to fix the position of parts, have a very important role. However, in the prior art, when the screw is installed, excessive fastening is easy to occur, which may damage the installation object, even the screw itself, and affect the practicability and reliability of the installation object; meanwhile, after the screw is installed, the screw may naturally slide outwards due to the specific structure of the screw, so that the screw is loosened and even completely falls off, the normal use of an installation object is seriously affected, and potential safety hazards are easily caused.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present invention is to provide a screw fastening structure to solve the problems caused by excessive fastening and natural loosening of screws.

Based on above-mentioned purpose the utility model provides a pair of screw fastening structure. A screw fastening structure comprising: the mounting structure comprises a screw and a first mounting surface with a through hole, wherein a first clamping part is arranged on the inner surface of the tail part of the screw, and a second clamping part is arranged at the contact position of the first mounting surface and the tail part of the screw;

under the state that the screw is screwed down, a screw rod of the screw penetrates through the through hole of the first mounting surface, the inner surface of the tail part of the screw is in close contact with the first mounting surface, and the first clamping part is clamped with the second clamping part.

In some other embodiments of the present invention, the clamping structure includes:

the first clamping portion is a clamping groove, and the second clamping portion is a clamping head matched with the clamping groove.

In other embodiments of the present invention, the head of the clamping head is tapered, and the bottom of the clamping groove is a tapered groove adapted to the shape of the head of the clamping head.

In some other embodiments of the present invention, a hole is disposed beside the through hole on the first mounting surface, and the second clamping portion is accommodated in the hole.

The utility model discloses in other some embodiments, the joint groove is provided with four, and evenly distributed, the joint is provided with two, and evenly distributed.

In some other embodiments of the present invention, the screw fastening structure further includes a second mounting surface and a female screw, the second mounting surface is provided with a through hole, the screw rod of the female screw passes through the through hole, the screw rod of the female screw has a threaded hole, and the screw rod of the screw is screwed into the screw rod of the female screw through a thread.

In some other embodiments of the present invention, at least one elastic member is further disposed between the second mounting surface and the first mounting surface.

In some other embodiments of the present invention, a locking mechanism for fixing the tail portion of the female screw to the second mounting surface is provided between the second mounting surface and the first mounting surface.

In some other embodiments of the present invention, the outer side of the tail portion of the screw is provided with a groove for rotating the screw.

In some other embodiments of the present invention, the first mounting surface is provided with a screw groove, and the size of the screw groove is adapted to the size of the tail of the screw to accommodate the tail of the screw.

From the above, the screw fastening structure provided by the utility model not only can be connected by the screw and the female screw to fix the member to be fixed; the first mounting surface is used for fixing the to-be-fixed piece, the screw is connected with the first mounting surface through the first clamping portion and the second clamping portion, so that the screw is not prone to unnecessarily falling along the internal thread of the female screw, the screw has a certain buffering effect due to the clamping mode, the screw cannot be completely damaged, and the to-be-fixed piece can be stably fixed; meanwhile, the utility model discloses to treat the mounting and set up between first installation face and female screw, and avoid the screw and treat the direct contact of mounting, to the harm of treating the mounting when having avoided the screw to fasten excessively promptly. Therefore, the utility model provides a screw fastening structure not only can stably fix and treat the mounting, but also can make and treat that the mounting avoids the harm.

Drawings

Fig. 1 is an exploded schematic view of a screw fastening structure according to an embodiment of the present invention;

fig. 2 is a partial schematic view of a screw fastening structure according to an embodiment of the present invention;

fig. 3 is an internal cross-sectional view of a screw fastening structure according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

In an embodiment of the present invention, a screw fastening structure, referring to fig. 1, includes: the mounting structure comprises a screw and a first mounting surface 1 with a through hole, wherein a first clamping part is arranged on the inner surface of the tail part of the screw, and a second clamping part is arranged at the contact position of the first mounting surface 1 and the tail part of the screw;

under the state that the screw is screwed down, a screw rod of the screw penetrates through the through hole of the first mounting surface 1, the inner surface of the tail part of the screw is in close contact with the first mounting surface 1, and the first clamping part is clamped with the second clamping part.

Specifically, the screw comprises a tail part 2 and a screw rod 3 of the screw, and an external thread is arranged on the screw rod 3 of the screw. When the screw is installed, the screw rod 3 of the screw passes through the through hole of the first installation surface 1, a certain force is gradually applied to the tail part 2 of the screw to tighten the screw, and the inner surface of the tail part 2 of the screw is tightly contacted with the first installation surface 1.

Work as the screw is outwards slided because its distinctive structure is easy nature, finally leads to the screw is not hard up when coming off completely even, the utility model discloses a first joint portion, second joint portion will the screw is in the same place with the comparatively inseparable connection of first installation face 1. If the screw has a tendency to slide outward naturally, a larger force is required to drive the first mounting surface 1 to slide outward naturally, so that the possibility of sliding outward in this case is greatly reduced. The special structure of the screw is that the screw rod 3 of the screw is provided with an external thread which needs to be connected with a nut structure with an internal thread.

In particular, when a certain force is applied to the tail portion 2 of the screw, in some embodiments of the present invention, a groove for rotating the screw is provided outside the tail portion 2 of the screw. Referring to fig. 1, the screw is provided with a straight-line-shaped groove on the outer side of the tail part 2, wherein the straight-line-shaped groove is convenient for an operator to screw in or screw out the screw by using a straight-line-shaped flat screwdriver.

In other embodiments of the present invention, the shape of the groove disposed outside the tail portion 3 of the screw is not limited to a straight shape, and the groove may be disposed in different shapes according to different specific operation situations, such as different tools, for example, the groove disposed outside the tail portion 3 of the screw may be disposed in a quincunx shape, so as to facilitate the screw to be screwed in or out by using the quincunx driver.

In some embodiments of the present invention, referring to fig. 2, the clamping structure includes: first joint portion on 2 internal surfaces of afterbody of screw is joint groove 4, on 1 first installation face second joint portion for with joint groove matched with joint 5. In other embodiments of the present invention, the joint groove 4 may be disposed on the first mounting surface 1, and the joint head 5 may be disposed on the inner surface of the tail portion 2 of the screw, the first joint portion is not necessarily disposed as the joint groove 4, and the first joint portion is not necessarily disposed as the joint head 5, as long as the screw can pass through the first mounting surface 1, the first joint portion and the second joint portion are connected.

Specifically, referring to fig. 3, in some embodiments of the present invention, the head of the card connector 5 is tapered, and the bottom of the card slot 4 is a tapered slot adapted to the shape of the head of the card connector 5. The head of the clip head 5 is a portion that engages with the bottom of the clip groove 4. In other embodiments of the present invention, the shape of the clamping groove 4 and the clamping head 5 can be set to have a structure with a narrow inside and a wide outside, for example, the cross section of the clamping groove 4 is trapezoidal.

Referring to fig. 2, in some embodiments of the present invention, a small hole is disposed beside the through hole on the first mounting surface 1, and the second clamping portion is accommodated in the small hole. Through this kind of mode of setting, second joint portion passes through the aperture sets up on first installation face 1, second joint portion can be with 1 different materials of first installation face, for example second joint portion is the iron material, and first installation face 1 is the plastics material. In other embodiments of the present invention, the second clip portion may be directly disposed on the first mounting surface 1 without providing a small hole.

In some embodiments of the present invention, the clamping grooves 4 are four and uniformly distributed, and the clamping heads 5 are two and uniformly distributed. Of course, in some other implementations of the present invention, the joint groove 4 and the joint head 5 are not necessarily set to be evenly distributed, but also can be distributed in a centralized manner, and the joint effect of the joint groove 4 and the joint head 5 is determined as required.

Specifically, four clamping grooves 4 are uniformly arranged along the inner side of the tail part 3 of the screw, and two clamping heads 5 are uniformly arranged on the first mounting surface 1. The two opposite clamping grooves 4 can be clamped with the two clamping connectors 5 to realize the connection of the tail part 2 of the screw and the first mounting surface 1. The number of the clamping grooves 4 is more than that of the clamping heads 5, so that the clamping grooves 4 can be used alternately in the using process to avoid damaging the tail parts 2 of the screws.

In some embodiments of the present invention, a screw slot 6 is disposed on the first mounting surface 1, and the size of the screw slot 6 is adapted to the size of the tail portion 2 of the screw to accommodate the tail portion 2 of the screw;

a through hole is arranged in the screw groove 6, and the size of the through hole is matched with the diameter of the screw rod 3 of the screw so that the screw rod 3 of the screw can penetrate through the through hole.

Specifically, referring to fig. 1 and 2, in the present embodiment, the tail portion 2 and the screw groove 6 of the screw are both provided as a cylinder, and the tail portion 2 of the screw is provided as a cylinder head. In some other embodiments of the present invention, the tail portion 2 of the screw may be further configured to have a hexagonal head or a T-shaped head, and is not limited to the cylindrical head, and the shape of the corresponding screw slot 6 may also be configured to have other corresponding shapes as long as the screw slot 6 can accommodate the tail portion 2 of the screw.

Wherein, referring to fig. 1, the through-hole is disposed at the center of the screw slot 6, and the through-hole and the screw slot 6 are disposed at the same center, in some other embodiments of the present invention, the through-hole may not be disposed at the center of the screw slot 6, i.e., only needs to be disposed so as to finally enable the screw rod 3 of the screw to pass through the through-hole.

In some embodiments of the present invention, the screw fastening structure further includes a second mounting surface 7 and a female screw, the second mounting surface 7 is provided with a through hole, the screw rod 8 of the female screw passes through the through hole of the second mounting surface 7, the screw rod 8 of the female screw has a threaded hole, and the screw rod 8 of the screw is screwed into the screw rod 8 of the female screw through a thread.

Specifically, the second mounting surface 7 is provided with a female screw groove for accommodating the head of the female screw, and the size of the female screw groove is adapted to the size of the head of the female screw; the female screw is connected with the screw through a through hole of the second mounting surface 7. Referring to fig. 1 and 3, the female screw includes: the shank 8 of the female screw and the tail 9 of the female screw. The shank 8 of the female screw has a threaded hole, i.e. has an internal thread for threaded connection with the external thread of the shank 3 of the screw.

The tail part 9 of the female screw is arranged in the female screw groove. When the piece to be fixed 10 is installed, the elastic piece is in a compressed state, and the generated elastic force acts on the second installation surface 7, so that the second installation surface 7 is combined with the tail part 9 of the female screw more tightly.

Specifically, in some embodiments of the present invention, a locking mechanism for fixing the tail portion 9 of the female screw to the second mounting surface 7 is provided between the second mounting surface 7 and the first mounting surface 1.

Wherein, with reference to fig. 1, the locking mechanism comprises: and a circular hole which is matched with the outer diameter of the screw rod 8 of the female screw is formed in the fixing clamping reed 11, so that the screw rod 8 of the female screw can pass through the fixing clamping reed 11 in a proper way. Referring to fig. 1 and 3, the fixing clip spring plate 11 has a gap which is adjustably embedded in a joint between the tail portion 9 of the female screw and the screw 8 of the female screw, a certain number of protrusions are arranged around the through hole of the second mounting surface 7, and holes matched with the protrusions are arranged on the fixing clip spring plate 11. It is obvious that the fixing clip reed 11 may be provided on the side of the second mounting surface 7 facing the first mounting surface 1. Of course, in other embodiments, the locking mechanism may be other structures capable of fixing the female screw to the second mounting surface 7.

In some embodiments of the present invention, referring to fig. 2, the to-be-fixed member 10 may be a device with a hole provided in the key isocenter, and the whole fixing process for fixing the to-be-fixed member 10 is:

the to-be-fixed piece 10 is placed between the first mounting surface 1 and the female screw, the screw is screwed into the female screw along the thread, and a certain acting force is applied to enable the clamping connector 5 and the clamping groove 4 to be clamped together. Therefore, in the process of fixing the piece to be fixed, the clamping connector 5 is matched with the clamping groove 4, on one hand, the screw is not easy to fall off along the thread because the screw is connected with the first mounting surface 1; on the other hand, the installation of the first installation surface 1 isolates the direct contact of the screw and the piece to be fixed 10 without causing the screw to generate certain damage to the piece to be fixed 10, wherein the clamping form also causes the screw to have certain buffering effect without excessively fastening and completely damaging the screw.

In some embodiments of the present invention, at least one elastic member is further disposed between the second mounting surface 7 and the first mounting surface 1. Specifically, the at least one elastic member includes: and the elastic sheet 12 is provided with a round hole, and the size of the round hole is adapted to the diameter of the screw rod 3 of the screw. The elastic sheet 12 acts as follows:

referring to fig. 3, the to-be-fixed member 10 is placed between the first mounting surface 1 and the second mounting surface 7, the screw is screwed into the female screw along the thread, the elastic sheet 12 is sleeved on the screw rod 3 of the screw, and when the distance between the two end devices of the elastic sheet 12 is gradually reduced to gradually compress the elastic sheet 12, the elastic force of the elastic sheet 12 can enable the clamping connector 5 and the clamping groove 4 to be clamped together. Specifically, the spring plate 12 is disposed between the first mounting surface 1 and the member to be fixed 10, and in other embodiments, the spring plate 12 may be disposed between the other two members.

In a further preferred embodiment of this embodiment, said at least one elastic element further comprises an elastic element such as a spring fitted over the shank 3 of said screw.

In this embodiment, an adhesive tape for fixing the tail portion 2 of the screw is further provided on the first mounting surface 1. The tape is intended to make the screw more firmly connectable to the first mounting surface 1. Of course, in other embodiments of the present invention, the way of reinforcing the gap between the screw and the first mounting surface 1 is not limited to the above, and other arrangements may also be adopted, for example, the tail portion 2 of the screw is clamped with the first mounting surface 1, and simultaneously, magnetic connection is realized.

In some embodiments of the present invention, referring to fig. 2, the outer sides of the first mounting surface 1 and the second mounting surface 7 may be further provided with a housing for protecting the screw, the female screw, the first mounting surface 1, and the second mounting surface 7, and may be colored to make the entire structure more beautiful. One ends of the first mounting surface 1 and the second mounting surface 7 are connected through the screw and the female screw, and the other ends of the first mounting surface 1 and the second mounting surface 7 are connected with each other through a hinge structure.

Specifically, referring to fig. 2, the hinge structure includes: first end hinge 13, middle hinge 14 and second end hinge 15, first end hinge 13 and first installation face 1 hinged joint, second end hinge 15 and second installation face 7 hinged joint pass through middle hinge 14 between first end hinge 13 and the second end hinge and be connected for whole structure is confined, and key waits that mounting 10 can be accomodate in better in screw fastening structure. Wherein, the center of the outer end of the middle hinge 14 is also provided with a base 16, and the base 16 is provided with a hanging ring 17 which is convenient for a user to carry. In other embodiments of the present invention, the hinge structure may be set to be another structure that can connect the other ends of the first mounting surface 1 and the second mounting surface 7, and the hanging ring 17 on the middle hinge 14 for the user to conveniently carry may also be set to be another structure that is convenient for the user to carry.

It is obvious that in some embodiments of the present invention, between the screw and the female screw connection, a connection structure may be provided such that the placing space formed by the screw and the female screw for fixing the member to be fixed 10 is sufficiently large. Specifically, referring to fig. 1, the member to be fixed 10 is generally provided with a hole corresponding to the size of the screw rod of the female screw, and when the member to be fixed 10 is more than the size of the placement space, the placement space can be enlarged by the connection structure. Wherein, the connection structure includes: one end has the internal thread, one end has the connecting screw 18 of external screw thread, connecting screw 18 have internal screw thread one end with the screw rod 3 of screw cooperatees, connecting screw 18 have the external screw thread one end with the screw rod 8 of box screw cooperatees, certainly the utility model discloses in, connecting screw 18's length enlarges according to concrete needs place the size in space and decide. In other embodiments of the present invention, the placing space can accommodate the to-be-fixed member 10, or the above-mentioned connection structure may not be provided.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also technical features in the above embodiments or in different embodiments can be combined, steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those skilled in the art in light of the foregoing description.

The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A screw fastening structure, characterized by comprising: the mounting structure comprises a screw and a first mounting surface with a through hole, wherein a first clamping part is arranged on the inner surface of the tail part of the screw, and a second clamping part is arranged at the contact position of the first mounting surface and the tail part of the screw;

2. The screw fastening structure according to claim 1, wherein the first engaging portion is an engaging groove, and the second engaging portion is an engaging head engaged with the engaging groove.

3. A screw fastening structure according to claim 2, wherein the head portion of the card connector is tapered, and the bottom portion of the card slot is a tapered slot adapted to the shape of the head portion of the card connector.

4. The screw fastening structure according to claim 2, wherein a small hole is provided beside the through hole of the first mounting surface, and the second engaging portion is received in the small hole.

5. The screw fastening structure according to claim 2, wherein the four snap grooves are uniformly distributed, and the two snap joints are uniformly distributed.

6. A screw-fastening structure according to claim 1, further comprising a second mounting surface provided on the opposite side of the first mounting surface, and a female screw having a through hole provided on the second mounting surface, a shank of the female screw passing through the through hole of the second mounting surface, the shank of the female screw having a threaded hole, the shank of the screw being screwed into the shank of the female screw.

7. A screw fastening construction in accordance with claim 6, wherein at least one resilient member is further provided between said second mounting surface and said first mounting surface.

8. A screw-fastening structure according to claim 6, wherein a locking mechanism for fixing a tail portion of the female screw to the second mounting surface is provided between the second mounting surface and the first mounting surface.

9. A screw fastening structure according to claim 1, wherein the outer side of the tail portion of the screw is provided with a groove for rotating the screw.

10. A screw fastening arrangement in accordance with claim 1, wherein said first mounting surface is provided with a screw slot sized to accommodate the tail of said screw.