Anti-falling screw

Abstract

The utility model discloses an anti-falling type screw, which belongs to the technical field of screws and comprises a screw rod body, a baffle plate is arranged above the screw rod body, a screw head is arranged above the baffle plate, an anti-falling component is arranged above the inside of the screw rod body, a hexagonal groove is formed in the middle of the screw head, and the anti-falling component is arranged in the hexagonal groove. A protective assembly is arranged above the screw head in a sleeving mode, the screw rod body comprises a screw rod base body and a reinforcing effect assembly, and the reinforcing effect assembly is arranged on the surface of the screw rod base body. According to the screw rod, the anti-fatigue layer is arranged, the anti-fatigue effect of the screw rod body is improved, and the high-strength layer is arranged, so that the strength of the screw rod body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screws, and in particular relates to an anti-falling screw. Background Art

[0002] A screw is a tool for fastening objects and mechanical parts. It uses the physical and mathematical principles of the circular rotation of an inclined surface and friction to gradually tighten objects and mechanical parts. The design of screws has undergone many major changes throughout history, from the initial hand-made to the current mechanized production, and from different thread shapes to different materials. The development of screws reflects the progress of human industry and technology.

[0003] Chinese patent application number 202321115013.4 discloses an anti-slip screw, comprising a screw rod and a screw head with a hexagonal slot, an anti-slip column fixed between the screw rod and the screw head, an anti-slip hook provided for circumferential rotation along the anti-slip column, a sawtooth structure 1 uniformly provided on the side of the anti-slip hook away from the anti-slip column, a slider provided at the center of the anti-slip column for sliding up and down with the anti-slip column, a push plate fixed on the slider, and a drive rod fixed to the top of the push plate. In the present utility model, by providing an anti-slip column and utilizing the slider, the anti-slip hook is driven to rotate toward the side away from the anti-slip column by moving the slider upward. The anti-slip hook located on the outside of the anti-slip column will naturally abut against the inner wall of the upper end of the mounting hole, effectively preventing the screw rod from falling out of the mounting hole. By providing a baffle and utilizing the sawtooth structure 2, friction is increased, stability is improved, and the anti-slip hook is connected to the screw head by a threaded connection, facilitating disassembly and assembly.

[0004] The above-mentioned patent has the following problems: 1. It is not convenient to protect the screw head during use, as it is exposed to the outside world and easily corroded by the external environment, water and dust; 2. It is not convenient to improve the fatigue resistance and strength of the screw during use. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides an anti-falling screw, which has the characteristics of being convenient for protecting the screw head and improving the fatigue resistance and high strength of the screw.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-falling screw, comprising a screw rod body, a baffle provided above the screw rod body, a screw head provided above the baffle, an anti-falling component provided above the interior of the screw rod body, a hexagonal slot provided in the middle of the screw head, a protective component provided above the screw head, the screw rod body comprising a screw rod base and a reinforcing effect component, and the surface of the screw rod base is provided with a reinforcing effect component.

[0007] Preferably, the protective assembly includes a protective cover, a fixed screw, a fastening assembly, a bearing, a fixed plate and a guide slider, wherein a protective cover is sleeved above the screw head, one end of the protective cover is threadedly connected to the fixed screw, one end of the fixed screw is provided with a fastening assembly, a bearing is provided at the connection between the fixed screw and the fastening assembly, one end of the fastening assembly is provided with a fixed plate, and a guide slider is provided above the fastening assembly.

[0008] Preferably, the fastening assembly includes a fastening seat, a fastening spring and a fastening pad, wherein a fastening seat is provided at one end of the fixing screw, a fastening spring is provided at the connection between the fixing plate and the fastening seat, and a fastening pad is provided at one end of the fixing plate away from the fastening spring.

[0009] Preferably, a rotating block is provided at one end of the fixing screw located outside the protective cover, and anti-sliding blocks are symmetrically provided on the surface of the rotating block.

[0010] Preferably, the reinforcing effect component includes an anti-fatigue layer and a high-strength layer, wherein the high-strength layer is provided on the surface of the anti-fatigue layer.

[0011] Preferably, a high-bearing layer is provided at the connection between the anti-fatigue layer and the high-strength layer.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The utility model realizes the effect of protecting the screw head by setting a protective component, which can prevent the external environment from intruding on it. The structure can quickly install and remove the protective cover, and the protective cover is well fixed by fastening the component.

[0014] 2. The utility model realizes the improvement of the anti-fatigue effect and strength of the screw rod by setting a reinforcing effect component, setting an anti-fatigue layer to improve the anti-fatigue effect of the screw rod body, and setting a high-strength layer to improve the strength of the screw rod body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model cut from the main view;

[0017] Figure 3 This is a schematic structural diagram of a cutaway screw rod body of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of the protective component of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the fastening assembly in the protective assembly of the present utility model;

[0020] Figure 6 This is a schematic diagram of the structure of the strengthening effect component of the present invention.

[0021] In the figure: 1. Screw rod body; 2. Baffle; 3. Screw head; 4. Protective assembly; 41. Protective cover; 42. Fixed screw; 43. Fastening assembly; 44. Bearing; 45. Fixed plate; 46. Guide slider; 47. Turning block; 431. Fastening seat; 432. Fastening spring; 433. Fastening pad; 5. Anti-slip assembly; 6. Hexagonal slot; 11. Screw rod base; 12. Reinforcement effect assembly; 121. Anti-fatigue layer; 122. High-strength layer; 123. High-bearing layer. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Example 1

[0024] See also Figure 1-6 The utility model provides the following technical solutions: an anti-falling screw, comprising a screw rod body 1, a baffle 2 is provided above the screw rod body 1, a screw head 3 is provided above the baffle 2, an anti-falling component 5 is provided above the inside of the screw rod body 1, a hexagonal slot 6 is provided in the middle of the screw head 3, a protective component 4 is sleeved above the screw head 3, the screw rod body 1 comprises a screw rod base 11 and a reinforcing effect component 12, and the reinforcing effect component 12 is provided on the surface of the screw rod base 11.

[0025] Specifically, the protective component 4 includes a protective cover 41, a fixed screw 42, a fastening component 43, a bearing 44, a fixing plate 45 and a guide slider 46, wherein a protective cover 41 is sleeved on the top of the screw head 3, one end of the protective cover 41 is threadedly connected to the fixed screw 42, one end of the fixed screw 42 is provided with a fastening component 43, a bearing 44 is provided at the connection between the fixed screw 42 and the fastening component 43, one end of the fastening component 43 is provided with a fixing plate 45, and a guide slider 46 is provided above the fastening component 43.

[0026] By adopting the above technical solution, the protective cover 41 is put on the screw head 3, and the rotating block 47 is rotated. The rotation of the rotating block 47 drives the fixed screw 42 to rotate, and the fixed screw 42 rotates. Under the action of the bearing 44 and the guide slider 46, the fastening component 43 and the fixed plate 45 move, and the protective cover 41 is clamped and fixed on the screw head 3, so that when the device is in use, it is convenient to protect the screw head 3 and prevent it from being disturbed by the external environment, thereby improving the practicality of use.

[0027] Specifically, the fastening assembly 43 includes a fastening seat 431, a fastening spring 432 and a fastening pad 433, wherein a fastening seat 431 is provided at one end of the fixing screw 42, a fastening spring 432 is provided at the connection between the fixing plate 45 and the fastening seat 431, and a fastening pad 433 is provided at the end of the fixing plate 45 away from the fastening spring 432.

[0028] By adopting the above technical solution, when the fastening assembly 43 is used, the fixing plate 45 will move and compress the fastening spring 432 in the fastening seat 431 when clamped, until the fastening spring 432 is in a fully compressed state, so that the fixing effect is good.

[0029] Specifically, a rotating block 47 is provided at one end of the fixing screw 42 located outside the protective cover 41 , and anti-sliding blocks are symmetrically provided on the surface of the rotating block 47 .

[0030] By adopting the above technical solution, the provision of the rotating block 47 and the anti-sliding block makes it possible to conveniently rotate the fixing screw 42 .

[0031] When this embodiment is in use: the protective cover 41 is put on the screw head 3, the rotating block 47 is rotated, and the rotating block 47 rotates to drive the fixed screw 42 to rotate. The fixed screw 42 rotates, and under the action of the bearing 44 and the guide slider 46, the fastening component 43 and the fixed plate 45 move to clamp the protective cover 41 on the screw head 3. When the fastening component 43 is in use, the fixed plate 45 will move and compress the fastening spring 432 in the fastening seat 431 when clamping, until the fastening spring 432 is in a fully compressed state, so that the fixing effect is good, so that the device can easily protect the screw head 3 when in use, prevent it from being disturbed by the external environment, and improve the practicality of use.

[0032] Example 2

[0033] The difference between this embodiment and the first embodiment is that: specifically, the reinforcing effect component 12 includes an anti-fatigue layer 121 and a high-strength layer 122 , wherein the high-strength layer 122 is provided on the surface of the anti-fatigue layer 121 .

[0034] By adopting the above technical solution, the anti-fatigue layer 121 is provided to improve the anti-fatigue effect of the screw rod body 1, and the high-strength layer 122 is provided to improve the strength of the screw rod body 1, so that the device improves the anti-fatigue effect and strength of the screw rod body 1 when in use.

[0035] Specifically, a high-bearing layer 123 is provided at the connection between the anti-fatigue layer 121 and the high-strength layer 122 .

[0036] By adopting the above technical solution and providing the high-bearing layer 123 , the high-bearing effect of the screw rod body 1 is improved.

[0037] When this embodiment is in use: an anti-fatigue layer 121 is provided to improve the anti-fatigue effect of the screw rod body 1; a high-strength layer 122 is provided to improve the strength of the screw rod body 1; a high-bearing layer 123 is provided to improve the high-bearing effect of the screw rod body 1, so that when the device is in use, the anti-fatigue effect and strength of the screw rod body 1 are improved.

[0038] The structure and usage principle of the baffle 2 and the anti-slip component 5 in the utility model have been disclosed in an anti-falling screw disclosed in Chinese patent application No. 202321115013.4. Its working principle is that by setting the baffle 2 and utilizing the serrated structure 2, the contact area between the utility model and the mounting end face is further increased, thereby increasing the friction and improving the stability. By utilizing the slider, the push plate is pushed to push the driving rod fixed with the anti-slip hook by moving the slider upward. Since the anti-slip hook is rotatably installed with the anti-slip column, when the driving rod moves upward, it will drive the anti-slip hook to rotate to the side away from the anti-slip column. The anti-slip hook located on the outside of the anti-slip column will naturally abut against the inner wall of the upper end of the mounting hole, and cooperate with the serrated structure 1 to increase the friction by increasing the contact area, thereby suppressing the screw rod from reversing due to vibration, and effectively preventing the screw rod from falling off the mounting hole.

[0039] The working principle and use process of the utility model: When the utility model is used, the anti-slip component 5 can prevent the screw from falling off, thereby improving the stability of use. The protective component 4 is convenient for protecting the screw head 3. The reinforcing effect component 12 is convenient for improving the anti-fatigue effect and strength of the screw rod body 1. When the protective component 4 is used, the protective cover 41 is put on the screw head 3, and the rotating block 47 is rotated. The rotating block 47 rotates to drive the fixed screw 42 to rotate. The fixed screw 42 rotates. Under the action of the bearing 44 and the guide slider 46, the fastening component 43 and the fixed plate 45 move, and the protective cover 41 is clamped and fixed on the screw head 3. When the fastening component 43 is used When the fixing plate 45 is clamped, the compression fastening spring 432 will move in the fastening seat 431 until the fastening spring 432 is in a fully compressed state, so that the fixing effect is good, so that when the device is in use, it is convenient to protect the screw head 3 to prevent it from being disturbed by the external environment, thereby improving the practicality of use. When the strengthening effect component 12 is used, an anti-fatigue layer 121 is provided to improve the anti-fatigue effect of the screw rod body 1, a high-strength layer 122 is provided to improve the strength of the screw rod body 1, and a high-bearing layer 123 is provided to improve the high-bearing effect of the screw rod body 1, so that when the device is in use, the anti-fatigue effect and strength of the screw rod body 1 are improved.

[0040] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-dropout screw, comprising a screw rod body (1), a baffle (2) provided above the screw rod body (1), a screw head (3) provided above the baffle (2), an anti-dropout component (5) provided above the interior of the screw rod body (1), a hexagonal slot (6) provided in the middle of the screw head (3), characterized in that: A protective component (4) is sleeved above the screw head (3); the screw rod body (1) comprises a screw rod base (11) and a reinforcing effect component (12); and the reinforcing effect component (12) is provided on the surface of the screw rod base (11).

2. The anti-falling screw according to claim 1, characterized in that: The protective assembly (4) comprises a protective cover (41), a fixed screw (42), a fastening assembly (43), a bearing (44), a fixing plate (45) and a guide slider (46), wherein a protective cover (41) is sleeved on the top of the screw head (3), one end of the protective cover (41) is threadedly connected to the fixed screw (42), one end of the fixed screw (42) is provided with a fastening assembly (43), a bearing (44) is provided at the connection between the fixed screw (42) and the fastening assembly (43), one end of the fastening assembly (43) is provided with a fixing plate (45), and a guide slider (46) is provided above the fastening assembly (43).

3. The anti-falling screw according to claim 2, characterized in that: The fastening assembly (43) comprises a fastening seat (431), a fastening spring (432) and a fastening pad (433), wherein one end of the fixing screw (42) is provided with the fastening seat (431), a fastening spring (432) is provided at the connection between the fixing plate (45) and the fastening seat (431), and a fastening pad (433) is provided at one end of the fixing plate (45) away from the fastening spring (432).

4. The anti-falling screw according to claim 2, characterized in that: A rotating block (47) is provided at one end of the fixing screw (42) located outside the protective cover (41), and an anti-sliding block is symmetrically provided on the surface of the rotating block (47).

5. The anti-falling screw according to claim 1, characterized in that: The reinforcing effect component (12) comprises an anti-fatigue layer (121) and a high-strength layer (122), wherein the high-strength layer (122) is provided on the surface of the anti-fatigue layer (121).

6. The anti-falling screw according to claim 5, characterized in that: A high-bearing layer (123) is provided at the connection between the anti-fatigue layer (121) and the high-strength layer (122).

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