Automatic locking screw

Abstract

The utility model relates to the technical field of screws, and discloses an automatic locking screw which comprises a screw body, a transverse groove is formed in the lower end of the screw body, a fixing block is installed in the transverse groove, first buffer rods are arranged on the two sides of the fixing block, and springs are arranged on the outer sides of the first buffer rods in a sleeved mode. A second buffer rod is arranged on the inner side of the end, away from the first buffer rod, of the spring, a sliding block is installed on one side of the second buffer rod, a sliding groove is formed in the position, corresponding to the sliding block, of the transverse groove, a clamping block is installed on one side of the sliding block, a nut is arranged on the outer side of the screw in a matched mode, and a clamping groove is formed in one end of the nut. The clamping block and the clamping groove are used in cooperation, so that after the screw is screwed into the nut, the clamping block is clamped in the clamping groove, automatic locking operation of the screw is achieved to a certain extent, meanwhile, the screw is not prone to loosening, stability of the whole structure is improved, the whole structure is simple, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to an automatically locking screw. Background Technique

[0002] A screw, also known as a bolt, is a tool that uses the physical and mathematical principles of the inclined plane circular rotation and friction of an object to gradually fasten the parts of a utensil.

[0003] Screws are indispensable industrial necessities in daily life. For example, extremely small screws are used in cameras, glasses, watches, electronics, etc.; general screws are used in televisions, electrical products, musical instruments, furniture, etc.; large screws and nuts are used in engineering, construction, and bridges; for transportation tools, airplanes, trams, cars, etc., both large and small screws are used. Facing specific usage situations, it is necessary to develop an automatically locking screw for convenient use.

[0004] Chinese Patent Publication No.: CN215409703 discloses "An Automatically Locking Screw". The locking cap is arranged in a frustum shape and is arranged in a locking groove opened in the nut, and the outer ring wall of the locking cap is in contact with the groove wall of the locking groove; the locking stud is fixed to the bottom of the locking cap, and the locking stud is rotatably inserted into a locking slot opened at the upper end of the screw rod. The locking slot is communicated with the locking groove. A locking internal thread is arranged on the inner ring wall at the upper end of the locking slot, and a locking external thread is arranged on the outer ring wall at the upper end of the locking stud. The locking external thread is screwed with the locking internal thread; the locking frustum is fixed to the bottom of the locking stud, the locking frustum is arranged in the locking slot, and the upper part of the locking frustum is arranged in an inverted frustum shape, and the lower part of the locking frustum is arranged in a cylindrical shape; it can make the screw and the connecting component in close contact, make the screw more stable during use, avoid the phenomenon of the screw loosening, and improve the use quality.

[0005] In the above-mentioned prior art, the upper part of the locking frustum is arranged in an inverted frustum shape, and the lower part of the locking frustum is arranged in a cylindrical shape; it can make the screw and the connecting component in close contact, make the screw more stable during use, but the existing device uses a moving boss to move outward to press and lock the connecting component, and the stability of the screw during use is poor and it is easy to loosen, which reduces the practicability to a certain extent. Content of the Utility Model

[0006] The purpose of the utility model is to provide an automatically locking screw to solve the problem that the stability of the screw is poor and it is easy to loosen during use, which reduces the practicability to a certain extent as mentioned in the above background technique.

[0007] To solve the above technical problems, the present utility model provides the following technical solution: An automatic locking screw, comprising a screw, a transverse groove is provided at the lower end of the screw, a fixing block is installed inside the transverse groove, first buffer rods are arranged on both sides of the fixing block, springs are sleeved outside the first buffer rods, a second buffer rod is arranged inside the end of the spring away from the first buffer rod, a slider is installed on one side of the second buffer rod, a chute is provided at the position corresponding to the slider in the transverse groove, a clamping block is installed on one side of the slider, a nut is provided with a matching outer side of the screw, and a clamping groove is provided at one end of the nut.

[0008] Preferably, the thread of the screw matches the thread of the nut.

[0009] Preferably, the fixing block is fixedly arranged at the middle position of the transverse groove.

[0010] Preferably, there are multiple groups of the first buffer rods, the multiple groups of the first buffer rods are symmetrically arranged on both sides of the fixing block, and the first buffer rods and the second buffer rods are symmetrically arranged at both ends of the spring.

[0011] Preferably, the slider is slidably connected to the chute.

[0012] Preferably, the slider is detachably connected to the clamping block, and the clamping block is of an inclined wedge structure.

[0013] Preferably, the clamping block matches the clamping groove, and the clamping block penetrates through the transverse groove and extends to the outside thereof.

[0014] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows:

[0015] First, the clamping block provided by the present utility model is of an inclined wedge shape. After the clamping block is stuck in the clamping groove, the screw is not easily loosened, improving the stability of the overall structure. When the clamping block is stuck in the clamping groove, the automatic locking operation of the screw is realized. When the clamping block moves to the clamping groove, under the action of the spring, the second buffer rod moves outwards, and the movement of the second buffer rod drives the clamping block to extend out of the transverse groove and be stuck in the clamping groove to achieve automatic locking.

[0016] Second, the structure of the present utility model is simple and the operation is convenient, which is the same as the usage method of ordinary bolts and nuts. The simplicity of the structure not only makes the usage process simple and intuitive, but also has a lower manufacturing cost, improving the practicality to a certain extent. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the present utility model;

[0018] Figure 2 is a cross-sectional view of the present utility model;

[0019] Figure 3 is the present utility modelFigure 2 Enlarged view of the structure at position A in

[0020] Figure 4 Schematic diagram of the structure of the first buffer rod and the spring of the present utility model.

[0021] In the figure: 1, screw; 2, horizontal groove; 3, fixing block; 4, first buffer rod; 5, spring; 6, second buffer rod; 7, slider; 8, chute; 9, clamping block; 10, nut; 11, clamping groove. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , an automatic locking screw, including a screw 1, a horizontal groove 2 is opened at the lower end of the screw 1, a fixing block 3 is installed inside the horizontal groove 2, first buffer rods 4 are arranged on both sides of the fixing block 3, a spring 5 is sleeved outside the first buffer rods 4, a second buffer rod 6 is arranged inside one end of the spring 5 away from the first buffer rods 4, a slider 7 is installed on one side of the second buffer rod 6, a chute 8 is opened at the position corresponding to the slider 7 in the horizontal groove 2, a clamping block 9 is installed on one side of the slider 7, a nut 10 is provided outside the screw 1, and a clamping groove 11 is opened at one end of the nut 10.

[0024] Through the above technical solution, by providing the clamping block 9 and the clamping groove 11, after the screw 1 is screwed into the nut 10, the clamping block 9 is used to be stuck in the clamping groove 11 to realize the automatic locking operation of the screw. When the clamping block 9 moves to the clamping groove 11, under the action of the spring 5, the second buffer rod 6 moves outwards, and the movement of the second buffer rod 6 drives the clamping block 9 to extend out of the horizontal groove 2 and be stuck in the clamping groove 11 to realize automatic locking. The structure is simple and the operation is convenient, which is the same as the use method of ordinary bolts and nuts, and the simple structure reduces the manufacturing cost. Moreover, the clamping block 9 is of an inclined wedge structure. After the clamping block 9 is stuck in the clamping groove 11, the screw 1 is not easy to loosen, improving the stability of the overall structure.

[0025] Specifically, the thread of the screw 1 matches the thread of the nut 10.

[0026] Through the above technical solution, the threads of the screw 1 and the nut 10 match, which is convenient for assembling and using together.

[0027] Specifically, the fixing block 3 is fixedly arranged at the middle position of the horizontal groove 2.

[0028] Through the above technical solution, the fixing block 3 plays a certain supporting role for the first buffer rod 4, and a clamping block 9 is arranged in the horizontal groove 2, which facilitates the automatic locking operation.

[0029] Specifically, there are multiple groups of the first buffer rods 4, and multiple groups of the first buffer rods 4 are symmetrically arranged on both sides of the fixing block 3. The first buffer rods 4 and the second buffer rods 6 are symmetrically arranged at both ends of the spring 5.

[0030] Through the above technical solution, by arranging the spring 5 outside the first buffer rod 4 and the second buffer rod 6, it is convenient to realize the telescopic movement of the clamping block 9 under the action of the spring 5.

[0031] Specifically, the slider 7 is slidably connected to the chute 8.

[0032] Through the above technical solution, the slider 7 and the chute 8 limit the telescopic movement of the clamping block 9, enabling it to perform telescopic movement within a specific distance and making the clamping block 9 move in a straight line.

[0033] Specifically, the slider 7 is detachably connected to the clamping block 9, and the clamping block 9 is of an inclined wedge structure.

[0034] Through the above technical solution, it is convenient to disassemble the clamping block 9, making its assembly easy. When in use, the inclined wedge structure of the clamping block 9 makes the screw 1 not prone to loosening.

[0035] Specifically, the clamping block 9 matches the card slot 11, and the clamping block 9 penetrates through the horizontal groove 2 and extends to its outside.

[0036] Through the above technical solution, by using the telescopic movement of the clamping block 9 in the horizontal groove 2 and the clamping block 9 being stuck in the card slot 11, the automatic locking operation of the screw 1 is realized. While preventing it from loosening, the operation is convenient and the structure is simple.

[0037] When in use, when an automatic locking operation needs to be performed on the screw 1, one end of the screw 1 is screwed into the nut 10. The inner wall of the nut 10 compresses the clamping block 9 and moves it inward. The symmetrically arranged clamping blocks 9 on the outside of the screw 1 move inward, causing the symmetrically arranged sliders 7 to slide inward in the chute 8. At the same time, the symmetrically arranged second buffer rods 6 approach the first buffer rods 4, and the second buffer rods 6 approaching the first buffer rods 4 compress the spring 5. When the clamping block 9 moves to the card slot 11, the spring 5 resets. Under the action of the reset force of the spring 5, the symmetrically arranged second buffer rods 6 move away from the first buffer rods 4. The symmetrically arranged second buffer rods 6 moving outward drive the symmetrically arranged sliders 7 to slide outward in the chute 8. The symmetrically arranged sliders 7 sliding outward in the chute 8 drive the symmetrically arranged clamping blocks 9 to extend out of the horizontal groove 2, and the clamping blocks 9 are stuck in the card slot 11 to perform the automatic locking operation on the screw 1.

[0038] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit, and the scope is defined by the appended claims and their equivalents.

Claims

1. An automatic locking screw, comprising a screw (1), characterized in that: The screw (1) has a transverse groove (2) at its lower end, a fixing block (3) is installed inside the transverse groove (2), first buffer rods (4) are arranged on both sides of the fixing block (3), a spring (5) is sleeved on the outer side of the first buffer rod (4), a second buffer rod (6) is arranged on the inner side of one end of the spring (5) away from the first buffer rod (4), a slider (7) is installed on one side of the second buffer rod (6), a slide groove (8) is arranged in the transverse groove (2) at a position corresponding to the slider (7), a clamping block (9) is installed on one side of the slider (7), a nut (10) is matched on the outer side of the screw (1), and a clamping groove (11) is arranged on one end of the nut (10).

2. An automatic locking screw according to claim 1, characterized in that: The thread of the screw (1) matches the thread of the nut (10).

3. The automatic locking screw according to claim 1, characterized in that: The fixing block (3) is fixedly arranged in the middle of the transverse groove (2).

4. The automatic locking screw according to claim 1, characterized in that: The first buffer rods (4) are provided in multiple groups, and the multiple groups of the first buffer rods (4) are symmetrically arranged on both sides of the fixed block (3); the first buffer rods (4) and the second buffer rods (6) are symmetrically arranged at both ends of the spring (5).

5. The automatic locking screw according to claim 1, characterized in that: The sliding block (7) is slidably connected to the sliding groove (8).

6. The automatic locking screw according to claim 1, characterized in that: The sliding block (7) is detachably connected to the clamping block (9), and the clamping block (9) is an inclined wedge structure.

7. The automatic locking screw according to claim 1, characterized in that: The clamping block (9) matches the clamping slot (11), and the clamping block (9) penetrates the transverse slot (2) and extends to the outside thereof.

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