Horizontal tail machine tooth combined screw

Abstract

The utility model provides a horizontal tail machine thread combined screw, which belongs to the technical field of fasteners, and comprises first screws, second screws, first round heads, second round heads, third round heads, third round heads, fourth round heads, fourth round heads, fourth round heads and fifth round heads, according to the device, through combined use of the two screws, higher locking force and stability can be obtained compared with a single screw. The second screw can further reinforce the connecting point on the basis of the first screw, the loosening risk is reduced, loosening is prevented, and in the vibration environment, the double-fixing structure can better resist loosening caused by vibration, and the function of connection durability is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of fastener technology, specifically relating to a combination screw for flat-tail machine teeth. Background Technology

[0002] As is well known in the prior art, screws are tools that use the physical and mathematical principles of the inclined plane, circular rotation, and friction of an object to gradually fasten objects and machine parts. Screws generally consist of a nut and a screw rod, and the function of fastening objects and machine parts is to tighten them by turning the screw.

[0003] The patent application CN217842331U discloses "a combination screw". This application discloses a combination screw, which includes a screw body. The screw body includes a screw rod and a nut disposed on the top of the screw rod. The top of the screw rod has a main oil passage. The outer side wall of the screw rod has a plurality of oil distribution ports connected to the main oil passage. The top of the nut has an oil filling cavity connected to the main oil passage. The nut is also provided with a sealing component for sealing the oil filling cavity.

[0004] The aforementioned patent addresses the issue that the outer wall of the screw has several oil distribution ports connected to the main oil passage, the top of the nut has an oil injection cavity connected to the main oil passage, and the nut also has a sealing component for sealing the oil injection cavity. However, the aforementioned patent has certain defects in use. Traditional screws fail to achieve the expected double locking function. Without a double locking mechanism, the screw is prone to loosening or even falling off completely under vibration or impact, which can lead to structural instability, unreliable connections between parts, and increased risk of failure. Utility Model Content

[0005] The purpose of this utility model is to provide a combination screw for flat-tail machine teeth, which aims to solve the problem that traditional screws in the prior art fail to achieve the expected double locking function. Without a double locking mechanism, the screw is prone to loosening or even falling off completely under vibration or impact, which can lead to structural instability, unreliable connection between parts, and increased risk of failure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] Flat-tail machine thread combination screws include:

[0008] First screw;

[0009] The second screw is rotatably connected to the first screw by its thread;

[0010] The first round head is fixedly connected to the upper end of the first screw;

[0011] Both the first screw and the second screw have a nickel-plated surface.

[0012] As a preferred embodiment of this utility model, a mating mount is slidably connected inside the first screw, and the mating mount has a first cross groove.

[0013] As a preferred embodiment of this utility model, two sliding fixing grooves are provided in the first round head, and a fitting installer is slidably connected in the two sliding fixing grooves.

[0014] As a preferred embodiment of this utility model, the upper end of the second screw is fixedly connected to a second round head, and a second cross groove is provided inside the second round head. The lower side of the mounting device is provided with a second round head.

[0015] As a preferred embodiment of this utility model, the threaded surface of the first screw is rotatably connected with an anti-slip pad, and the lower side of the first round head is provided with an anti-slip pad.

[0016] As a preferred embodiment of this utility model, both the first round head and the second round head have a nickel plating layer on their circumferential surfaces.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. In this solution, the part achieves double locking through secondary fixing. For the first fixing, the first screw is screwed into the target position, and the engagement of its thread with the mounting hole achieves initial fixing. For the second fixing, the second screw is slid into the first screw, and the threaded connection between the second screw and the first screw further locks it in place. Through the sliding of the second screw in the first screw and the final threaded connection, a deeper level of fixing is achieved, thus enhancing its stability.

[0019] 2. In this solution, the device utilizes a combination of two screws to achieve higher locking force and stability than a single screw. The second screw further reinforces the connection point based on the first screw, reducing the risk of loosening and preventing detachment. In vibration environments, the double-fixed structure better resists loosening caused by vibration, ensuring the durability of the connection. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a side perspective view of the present invention;

[0022] Figure 2This is a cross-sectional view of the present invention;

[0023] Figure 3 This is the first exploded view of this utility model;

[0024] Figure 4 This is the second exploded view of the present invention;

[0025] In the diagram: 1. First screw; 2. Second screw; 3. First round head; 4. Mating mount; 5. First cross groove; 6. Sliding fixing groove; 7. Second round head; 8. Second cross groove; 9. Anti-slip pad. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example

[0028] Please see Figures 1-4 The present invention provides the following technical solution:

[0029] Flat-tail machine thread combination screws include:

[0030] First screw 1;

[0031] The second screw 2 is threadedly rotatably connected to the first screw 1;

[0032] The first round head 3 is fixedly connected to the upper end of the first screw 1;

[0033] Both the first screw 1 and the second screw 2 have nickel-plated surfaces.

[0034] Please refer to the details. Figures 1-4 The first screw 1 is slidably connected to a mating mount 4, and the mating mount 4 has a first cross groove 5.

[0035] In this embodiment: when the second screw 2 rotates, it moves axially through its engagement with the internal thread of the first screw 1. At the same time, the mounting device 4 can slide axially within the first screw 1 without rotating, ensuring accurate positioning during installation. The first cross groove 5 allows the mounting device 4 to be driven by appropriate tools for installation or removal, ensuring the convenience and reliability of the installation process. The nickel plating layer not only provides corrosion protection but also enhances the wear resistance of the thread surface, improving the overall durability of the structure. In addition, this part achieves double locking through secondary fixing. For the initial fixing, the first screw 1 is screwed into the target position, and its thread engages with the mounting hole to achieve initial fixing. For the secondary fixing, the second screw 2 is slid into the first screw 1, and further locked through the threaded connection between the second screw 2 and the first screw 1. Through the sliding of the second screw 2 within the first screw 1 and the final threaded connection, a deeper level of fixing is achieved, enhancing its stability.

[0036] Please refer to the details. Figures 1-4 Two sliding fixing grooves 6 are provided inside the first round head 3, and a matching installer 4 is slidably connected in the two sliding fixing grooves 6.

[0037] In this embodiment: the fixing groove 6 allows the mounting device 4 to slide axially within the sliding fixing groove 6 without rotating, ensuring the accuracy of the position during installation. The sliding connection between the sliding fixing groove 6 and the mounting device 4 allows the second screw 2 to slide smoothly into the first screw 1 for secondary fixation, while ensuring that the mounting device 4 will not rotate with the second screw 2 during operation, thus improving the convenience of installation and disassembly.

[0038] Please refer to the details. Figures 1-4 The upper end of the second screw 2 is fixedly connected to the second round head 7, and the second round head 7 has a second cross groove 8 inside. The second round head 7 is provided on the lower side of the mounting device 4.

[0039] In this embodiment: the second screw 2 is connected to the mounting device 4 via the second round head 7, and the second cross groove 8 allows the second screw 2 to be rotated using a corresponding tool. The design of the second round head 7 and the second cross groove 8 ensures that the second screw 2 can accurately transmit torque during installation or removal. At the same time, the mounting device 4 remains stable and does not rotate with the second screw 2 when it rotates.

[0040] Please refer to the details. Figures 1-4 The threaded surface of the first screw 1 is rotatably connected with an anti-slip pad 9, and the lower side of the first round head 3 is provided with an anti-slip pad 9.

[0041] In this embodiment, the anti-slip pad 9 increases the friction between the first screw 1 and the contact surface when the first screw 1 is screwed in, preventing the screw from loosening due to vibration or external force. The anti-slip pad 9 is located on the lower side of the first round head 3, which further enhances the stability of the top connection point and ensures the firmness of the entire combination screw under stress. In this way, the anti-slip pad 9 not only improves the reliability of the screw connection, but also reduces the risk of connection failure.

[0042] Please refer to the details. Figures 1-4 Both the first round head 3 and the second round head 7 have a nickel plating layer on their circumferential surfaces.

[0043] In this embodiment: the surfaces of the first round head 3 and the second round head 7 have anti-corrosion and wear-resistant properties. The nickel plating layer increases the service life of the parts and ensures good mechanical properties under various environmental conditions. The nickel plating layer also provides a uniform and smooth surface, which helps to reduce friction during the assembly process.

[0044] The working principle and usage process of this utility model are as follows: First, screw the first screw 1 into the target position. Next, insert the fitting installer 4 into the first screw 1. The fitting installer 4 slides axially in the two sliding fixing grooves 6 within the first round head 3 without rotating, ensuring accurate positioning. Then, use a tool to drive the fitting installer 4 through the first cross groove 5, causing the first screw 1 to be threaded onto the designated fixing part. Then, pull out the fitting installer 4, and then thread the second screw 2 into the first screw 1 to achieve secondary fixing. Finally, use the appropriate tool to tighten the second screw 2 for final tightening, thus completing the installation and use of this device. This device, through the combined use of two screws, can achieve higher locking force and stability than a single screw. The second screw can further reinforce the connection point based on the first screw, reducing the risk of loosening and preventing detachment. In a vibration environment, the double-fixed structure can better resist loosening caused by vibration, ensuring the durability of the connection.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A flat-tail machine thread combination screw, characterized in that... include: First screw (1); The second screw (2) is rotatably threaded into the first screw (1); The first round head (3) is fixedly connected to the upper end of the first screw (1); Both of the first screws (1) and the second screw (2) have a nickel-plated layer on their threaded surfaces.

2. The flat-tail machine thread combination screw according to claim 1, characterized in that: The first screw (1) is slidably connected to a mating installer (4), and the mating installer (4) is provided with a first cross groove (5).

3. The flat-tail machine thread combination screw according to claim 2, characterized in that: Two sliding fixing grooves (6) are provided in the first round head (3), and a fitting installer (4) is slidably connected in the two sliding fixing grooves (6).

4. The flat-tail machine thread combination screw according to claim 3, characterized in that: The upper end of the second screw (2) is fixedly connected to a second round head (7), and a second cross groove (8) is provided in the second round head (7). The lower side of the fitting installer (4) is provided with a second round head (7).

5. The flat-tail machine thread combination screw according to claim 4, characterized in that: The threaded surface of the first screw (1) is rotatably connected with an anti-slip washer (9), and the lower side of the first round head (3) is provided with an anti-slip washer (9).

6. The flat-tail machine thread combination screw according to claim 5, characterized in that: Both the first round head (3) and the second round head (7) have a nickel plating layer on their circumferential surfaces.

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