Fastening screw with self-locking structure

Abstract

The utility model relates to the technical field of screws, in particular to a fastening screw with a self-locking structure. According to the technical scheme, the screw comprises a screw rod with threads, a screw head is fixedly arranged at one end of the screw rod, the screw further comprises an inner through groove formed in the screw head and the screw rod, a plurality of through holes are formed in the two sides of the screw rod, the through holes are communicated with the inner through groove, and a supporting plate is fixedly installed on the portion, located in the screw head, of the inner wall of the inner through groove. Self-locking of the fastening screw is achieved, connection stability is improved, the situation that the fastening screw is prone to loosening in the later period is avoided, the self-locking method is simpler and more ingenious, operation time and energy of workers are saved, and working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to screw technical field especially relates to a fastening screw with self -locking structure. BACKGROUND

[0002] Screw is used for fixed connection object, is widely used in various mechanical equipment, conventional screw structure includes the body and the tip and the flat end at the both ends of the body. With the development of industrialization, screw is also constantly improving and refining, in screw connection, the traditional method of preventing screw loosening has the measures such as increasing spring washer, injecting thread glue, thereby playing the effect of anti -slippage to screw connection.

[0003] Ordinary fastening screw is very easy to loosen due to daily mechanical vibration force after long time use, affects the stability of connected article, so fastening screw is often installed to carry out anti -loosening treatment, although the method of gluing or connecting piece can be well carried out anti -loosening treatment, however, when screw is disassembled later, connecting piece needs to be handled first, and in the process of disassembling connecting piece, screw is easily jammed or silk, the whole is more troublesome, reduces work efficiency, therefore the application proposes a fastening screw with self -locking structure. SUMMARY

[0004] The utility model discloses to the process of disassembling connecting piece in the background art, a fastening screw with self -locking structure is provided to solve the problem that screw is easily jammed or silk, the whole is more troublesome, reduces work efficiency.

[0005] The utility model discloses a technical scheme of a fastening screw with self -locking structure, including the screw rod with thread, one end of the screw rod is fixedly arranged with screw head, still include:

[0006] The inner through groove in the screw head and the screw rod is set up, a plurality of through holes are set up on the both sides of the screw rod, the through hole is linked together with the inner through groove, and the inner wall in the inner through groove is fixedly installed with the supporting plate in the screw head.

[0007] Limit locking device, the limit locking device sets up in the inner through groove and is used for the fastening of screw.

[0008] Auxiliary mechanism, the auxiliary mechanism sets up on the supporting plate and is used for the adjustment of limit locking device.

[0009] Optionally, the limit locking device includes trapezoidal slide block slidingly installed on the both sides of the bottom wall of the inner through groove, the upper surface of the trapezoidal slide block is fixedly connected with fixed plate, and a plurality of locking rods are arranged on the side of the fixed plate corresponding to the through hole.

[0010] Optionally, the top of the locking rod is provided with friction material.

[0011] Optionally, a threaded rod is rotatably arranged between the bottom wall of the inner through groove and the support plate, a threaded sleeve is threadedly sleeved on the threaded rod, and the two side bottom edges of the threaded sleeve are opposite to the inclined surfaces of the trapezoidal slide.

[0012] Optionally, the auxiliary mechanism comprises a rotating cap arranged above the support plate, the top end of the threaded rod is fixedly connected by penetrating the support plate and the rotating cap, and a cover cap is arranged on the rotating cap.

[0013] Optionally, a cross groove is arranged at the top center of the cover cap and the rotating cap.

[0014] Optionally, a plurality of positioning clamping rods are fixedly arranged at the bottom end of the cover cap, an insertion slot is arranged on the rotating cap for inserting the positioning clamping rods, and a clamping groove matched with the positioning clamping rods is arranged at the top of the screw head.

[0015] In summary, the present application has at least one of the following beneficial technical effects:

[0016] The through hole, the support plate, the threaded sleeve, the locking rod and the trapezoidal slide are arranged, the downward movement of the threaded sleeve can drive the locking rod to pass through the through hole and abut against the inner wall of the connecting member, the screw is easily self-locked, the situation that the screw is easily loosened in the later period is avoided, and the connection stability is improved.

[0017] The rotating cap, the cover cap, the positioning clamping rod, the clamping groove and the insertion slot are further arranged, the positioning clamping rod is clamped, the cover cap is fixed, the staff can easily rotate the threaded rod, the self-locking method is more ingenious and simple, time and energy are saved, and the work efficiency is improved.

[0018] The self-locking of the fastening screw is realized, the connection stability is improved, the situation that the screw is easily loosened in the later period is avoided, the self-locking method is more simple and ingenious, the operation time and energy of the staff are saved, and the work efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 A structure schematic view of an embodiment of the present application is given;

[0020] Figure 2 It is an inner through groove internal structure schematic view;

[0021] Figure 3 It is a locking rod connection structure schematic view;

[0022] Figure 4 It is a support plate connection structure schematic view.

[0023] Mark No. : 1, screw; 2, screw head; 3, inner through groove; 4, through hole; 5, support plate; 6, threaded rod; 7, rotating cap; 8, insertion slot; 9, cross slot; 10, cap; 11, positioning clamping rod; 12, threaded sleeve; 13, trapezoidal sliding block; 14, fixed plate; 15, locking rod; 16, friction material; 17, clamping groove. DETAILED DESCRIPTION

[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application.

[0025] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but merely represents selected embodiments of the present application.

[0026] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0028] It should be noted that the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed or inherent to such processes, methods, articles or devices. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0029] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, term "installation" "link" "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood in the specific meaning in the utility model according to specific circumstances.

[0030] Embodiment

[0031] As Figure 1 and Figure 2 The utility model discloses a fastening screw with self-locking structure, including the screw rod 1 with thread, the one end of screw rod 1 is fixedly arranged with screw head 2, still include the inner through slot 3 of being set up in screw head 2 and screw rod 1 inside, the both sides of screw rod 1 are set up with multiple through holes 4, and the through hole 4 is linked with the inner through slot 3, and the inner wall of inner through slot 3 is fixedly installed with support plate 5 in screw head 2, by screwing screw rod 1 and screw head 2 makes the thread of screw rod 1 and the screw hole is screwed, completes the fixed connection to the object.

[0032] As Figure 2 and Figure 3 The utility model discloses a fastening screw with self-locking structure, including the screw rod 1 with thread, the one end of screw rod 1 is fixedly arranged with screw head 2, still include the inner through slot 3 of being set up in screw head 2 and screw rod 1 inside, the both sides of screw rod 1 are set up with multiple through holes 4, and the through hole 4 is linked with the inner through slot 3, and the inner wall of inner through slot 3 is fixedly installed with support plate 5 in screw head 2, by screwing screw rod 1 and screw head 2 makes the thread of screw rod 1 and the screw hole is screwed, completes the fixed connection to the object.

[0033] It is worth mentioning that the bottom wall of the inner through slot 3 and the support plate 5 are rotatably installed with a threaded rod 6, a threaded sleeve 12 is threadedly connected to the threaded rod 6, the threaded sleeve 12 is located opposite to the inclined surface of the trapezoidal slide block 13, and the threaded sleeve 12 can move downward under the rotation of the threaded rod 6 until the threaded sleeve 12 continuously abuts against the inclined surface of the trapezoidal slide block 13, so that the trapezoidal slide block 13 can slide outward, and the locking rod 15 can be extended, and the top end of the locking rod 15 is provided with a friction material 16, which can further improve the locking force of the locking rod 15 and improve the locking effect.

[0034] As Figure 1 and Figure 4As shown, the device further comprises an auxiliary mechanism arranged on the support plate 5 for limiting and locking the adjustment of the device, the auxiliary mechanism comprises a rotating cap 7 arranged above the support plate 5, the top end of the threaded rod 6 is fixedly connected through the support plate 5 and the rotating cap 7, a cap 10 is arranged on the rotating cap 7, a cross slot 9 is arranged at the top center of the cap 10 and the rotating cap 7, an auxiliary tool such as a screwdriver can be inserted into the cross slot 9, and the rotating cap 7 drives the threaded rod 6 to rotate by rotating with force, so that the threaded sleeve 12 is easily moved downward, and the self-locking operation is completed.

[0035] In addition, a plurality of positioning clamping rods 11 are fixedly installed at the bottom end of the cap 10, a plug groove 8 is arranged on the rotating cap 7 for inserting the positioning clamping rod 11, and a clamping groove 17 matched with the positioning clamping rod 11 is arranged at the top of the screw head 2, before the self-locking is performed, when the screw is installed, the cap 10 is covered on the rotating cap 7, the positioning clamping rod 11 passes through the plug groove 8 and enters the clamping groove 17, the rotating cap 7 and the cap 10 form an integral whole, and the installation is completed by inserting the screwdriver into the cross slot 9.

[0036] In the embodiment, first, the cap 10 is covered on the rotating cap 7, the positioning clamping rod 11 is inserted into the clamping groove 17 through the plug groove 8 by the clamping of the positioning clamping rod 11, the connection of the cap 10 and the rotating cap 7 is completed, and an integral whole is formed, that is, the screw can also be rotated as a whole when the cap 10 is twisted, the tool such as a screwdriver is inserted into the cross slot on the cap 10, the screw is installed by twisting with force, after the installation is completed, the cap 10 is separated from the rotating cap 7, the rotating cap 7 drives the threaded rod 6 to rotate by the twisting of the screwdriver, the threaded sleeve 12 moves downward, the trapezoidal sliding block 13 slides towards both sides, the locking rod 15 moves out of the through hole 4 and abuts against the side edge of the connecting device, the self-locking of the screw is realized, and the stability is improved.

[0037] The above specific embodiments are only several optional embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A fastening screw having a self-locking structure, comprising a threaded shank (1) having a screw head (2) fixed at one end thereof, characterized in that, Also include: The inner channel (3) is opened in the screw head (2) and the screw rod (1), a plurality of through holes (4) are opened on both sides of the screw rod (1), the through hole (4) and the inner channel (3) are communicated, and the inner wall of the inner channel (3) is fixedly installed with a supporting plate (5) in the screw head (2); The limiting locking device is arranged in the inner channel (3) for fastening of the screw; The auxiliary mechanism is arranged on the supporting plate (5) for adjusting the limiting locking device.

2. The fastening screw having a self-locking structure according to claim 1, wherein The limiting locking device comprises a trapezoidal sliding block (13) slidingly installed on both sides of the bottom wall of the inner channel (3), the upper surface of the trapezoidal sliding block (13) is fixedly connected with a fixed plate (14), and a plurality of locking rods (15) are arranged on one side of the fixed plate (14) corresponding to the through hole (4).

3. The fastening screw having a self-locking structure according to claim 2, wherein The top end of the locking rod (15) is provided with a friction material (16).

4. The fastening screw having a self-locking structure according to claim 2, wherein The bottom wall of the inner channel (3) and the supporting plate (5) are rotatably installed with a threaded rod (6), the threaded rod (6) is threadedly sleeved with a threaded sleeve (12), and the two side bottom edges of the threaded sleeve (12) are opposite to the inclined surfaces of the trapezoidal sliding block (13).

5. The fastening screw having a self-locking structure according to claim 2, wherein The auxiliary mechanism comprises a rotating cap (7) arranged above the supporting plate (5), the top end of the threaded rod (6) penetrates the supporting plate (5) and the rotating cap (7) and is fixedly connected, and the rotating cap (7) is provided with a cap (10).

6. The fastening screw having a self-locking structure according to claim 5, wherein The top center of the cap (10) and the rotating cap (7) is provided with a cross groove (9).

7. The fastening screw having a self-locking structure according to claim 5, wherein The bottom end of the cap (10) is fixedly installed with a plurality of positioning clamping rods (11), the rotating cap (7) is provided with an insertion slot (8) for inserting the positioning clamping rod (11), and the top of the screw head (2) is provided with a clamping groove (17) matched with the positioning clamping rod (11).

Images