Self-tapping screw easy to correct

Abstract

The utility model discloses an easy to correct self -tapping screw, including screw main part and correct main part, the correct main part includes the support plate, and the outer surface of support plate is established with the installation groove. That easy to correct self -tapping screw, through the setting of support block, sleeve, knob, threaded push rod and push block, in the process of screw main part tightening, the condition of screw main body deviation may appear, first place the correct main body on the board, place the support block on the board through, then place the screw main body in the installation groove, and the screw main body is tightened, when deviation occurs, hold the knob with hand and rotate, can drive threaded push rod to rotate, make threaded push rod can adjust from the sleeve, and then can utilize push block and can correct the screw main body, after correction, can continue to tighten the screw main body, when reaching the appropriate position, take out the correct main body.

Description

Technical Field

[0001] This utility model relates to the field of self-tapping screw manufacturing technology, and in particular to a self-tapping screw that is easy to correct. Background Technology

[0002] Screws are widely used for connecting and installing metal plates such as stainless steel, metal plates, and galvanized steel plates. The surface hardness and core hardness of screws are higher than those of ordinary self-tapping screws. Screws are screws that combine tightening and loosening in one operation. They generally refer to pointed, coarse-threaded, harder wood screws, but also aluminum alloy and plastic ones. A special type of self-tapping screw used for threading metal holes is called a tap. Self-tapping screws are used for non-metallic or softer metals, eliminating the need for pre-drilling and tapping. Self-tapping screws have pointed heads to allow them to "tap" themselves; ordinary screws have flat heads and uniform thickness. Self-tapping screws mean that the drilled hole does not require tapping. The screw used is different from ordinary screws; it has a pointed head and a larger thread pitch, somewhat like a chip-free tap, allowing it to be screwed in directly without tapping. This method is commonly used for metals and plastics. It uses its own threads to "tap, drill, squeeze, and press" the corresponding threads into the materials being fixed, ensuring a tight fit.

[0003] However, existing self-tapping screws are generally tightened manually or with an electric drill. Manual tightening is labor-intensive and ineffective. Furthermore, when an electric drill rotates, the self-tapping screw is prone to tilting due to vibration, affecting its use. Additionally, the small contact area between the screw head and the material during installation makes it difficult to correct the screw's perpendicularity, resulting in tilted installation and reduced fixing effectiveness. Therefore, it is necessary to design a self-tapping screw that is easy to correct. Utility Model Content

[0004] The main purpose of this invention is to provide a self-tapping screw that is easy to correct, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An easily calibrated self-tapping screw includes a screw body and a calibration body. The calibration body includes a support plate with an installation groove on its outer surface. A sleeve is fixedly connected to the lower surface of the support plate, and a support block is fixedly connected to one end of the sleeve. A threaded push rod is provided on the inner wall of the sleeve, and a knob is rotatably connected to the outer surface of the sleeve. The knob is threadedly connected to the threaded push rod, and a push block is provided at one end of the threaded push rod.

[0007] Preferably, the screw body includes a screw head, the outer surface of the screw head has an internal hexagonal groove, a washer is fixedly connected to the outer surface of the screw head, and a screw rod is fixedly connected to the outer surface of the washer.

[0008] By adopting the above technical solution, the internal hexagonal slot allows tools to be easily clamped and rotated, and it can be fixed using a screw.

[0009] Preferably, the outer surface of the gasket has a cavity, and a telescopic rod is fixedly connected to the inner wall of the cavity, with a limit block fixedly connected to one end of the telescopic rod.

[0010] By adopting the above technical solution, the telescopic rod can be fixed by the cavity, and the telescopic rod can achieve the purpose of telescopic extension and retraction.

[0011] Preferably, the outer surface of the limiting block is provided with a pin.

[0012] By adopting the above technical solution, the pins can be inserted into the plate to achieve a fully fixed purpose.

[0013] Preferably, a spring is provided on the outer surface of the telescopic rod, one end of the spring is fixedly connected to the cavity, and the other end of the spring is fixedly connected to the limiting block.

[0014] By adopting the above technical solution, the spring can be made to have elastic force through the fixed connection between the spring, the cavity, and the limiting block.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. In this utility model, by setting up a support block, sleeve, knob, threaded push rod, and push block, the screw body may deviate during the tightening process. First, the correction body is placed on the plate, the support block is placed on the plate, and then the screw body is placed in the mounting groove and tightened. When deviation occurs, the knob is held and rotated to rotate the threaded push rod, allowing the threaded push rod to be adjusted out of the sleeve. Then, the push block can be used to correct the screw body. After correction, the screw body can be tightened again until it reaches the appropriate position, at which point the correction body can be removed.

[0017] 2. In this utility model, by setting up a pin, a telescopic rod, a limiting block and a spring, before using the screw body, a removable washer is used to hold the pin in place, and then the screw body is rotated. After the screw body is tightened, the reaction force of the spring can cause the telescopic rod to push the limiting block to extend and retract, and the removable washer can be pulled out, so that the pin can be inserted into the plate, thereby achieving the purpose of fixing. Attached Figure Description

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is a schematic diagram of the corrective main structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the screw body structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cavity structure of this utility model.

[0022] In the diagram: 1. Screw body; 2. Correction body; 3. Support plate; 4. Mounting slot; 5. Sleeve; 6. Support block; 7. Threaded push rod; 8. Push block; 9. Screw head; 10. Socket hexagonal groove; 11. Washer; 12. Screw; 13. Cavity; 14. Telescopic rod; 15. Limiting block; 16. Pin; 17. Spring. Detailed Implementation

[0023] 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.

[0024] like Figure 1-4 As shown, an easy-to-correct self-tapping screw includes a screw body 1 and a correction body 2. The correction body 2 includes a support plate 3, and the outer surface of the support plate 3 is provided with a mounting groove 4.

[0025] In this embodiment, a sleeve 5 is fixedly connected to the lower surface of the support plate 3, a support block 6 is fixedly connected to one end of the sleeve 5, a threaded push rod 7 is provided on the inner wall of the sleeve 5, a knob is rotatably connected to the outer surface of the sleeve 5, the knob is threadedly connected to the threaded push rod 7, and a push block 8 is provided at one end of the threaded push rod 7.

[0026] In practical use, during the tightening of the screw body 1, the screw body 1 may deviate. First, place the support block 6 on the plate, then place the screw body 1 in the mounting slot 3 and tighten the screw body 1. When deviation occurs, hold the knob and turn it to rotate the thread push rod 7, so that the thread push rod 7 can be adjusted out of the sleeve 5. Then, the push block 8 can be used to correct the screw body 1. After correction, the screw body 1 can be tightened again. When it reaches the appropriate position, the correction body 2 can be removed, and the final tightening operation is completed.

[0027] In this embodiment, the screw body 1 includes a screw head 9, the outer surface of the screw head 9 is provided with an internal hexagonal groove 10, a washer 11 is fixedly connected to the outer surface of the screw head 9, and a screw rod 12 is fixedly connected to the outer surface of the washer 11.

[0028] In practical use, when it is necessary to tighten the screw body 1, use a tool to hold the internal hexagonal slot 10 and rotate it, which can drive the screw 12 to rotate, so that the screw 12 can be inserted into the plate, thereby tightening the screw body 1.

[0029] In this embodiment, a cavity 13 is formed on the outer surface of the gasket 11, and a telescopic rod 14 is fixedly connected to the inner wall of the cavity 13. One end of the telescopic rod 14 is fixedly connected to a limit block 15.

[0030] In actual use, before using the screw body 1, use a removable washer to hold the pin 16 in place, and then rotate the screw body 1 to tighten it. After the screw body 1 is tightened, the telescopic rod 14 can push the limit block 15 to extend and retract through the reaction force of the spring 17.

[0031] In this embodiment, the outer surface of the limiting block 15 is provided with a pin 16.

[0032] In practical use, after the screw body 1 is tightened, the removable washer can be pulled out, allowing the pin 16 to be inserted into the plate, thereby achieving the purpose of fixing.

[0033] In this embodiment, a spring 17 is provided on the outer surface of the telescopic rod 14. One end of the spring 17 is fixedly connected to the cavity 13, and the other end of the spring 17 is fixedly connected to the limiting block 15.

[0034] In practical use, the fixed connection between the spring 17 and the cavity 13 and the limiting block 15 can make the spring 17 have the purpose of elasticity.

[0035] Working principle: During use, when tightening the screw body 1, use a tool to hold the internal hexagonal socket 10 and rotate it. This will cause the screw 12 to rotate, allowing it to be inserted into the plate, thus tightening the screw body 1. During the tightening process, the screw body 1 may deviate. First, place the corrector 2 on the plate, then place the support block 6 on the plate, and then place the screw body 1 in the mounting slot 3 and tighten it. If deviation occurs, hold the knob and rotate it to drive the thread push rod 7 inward. Rotate the screw body 1 so that the threaded push rod 7 can be adjusted out of the sleeve 5. Then, the screw body 1 can be corrected by the push block 8. After correction, the screw body 1 can be tightened until it reaches the appropriate position. Then, the correction body 2 can be removed and the final tightening operation can be completed. Before using the screw body 1, the pin 16 is supported by a removable washer. Then, the screw body 1 is rotated. After the screw body 1 is tightened, the reaction force of the spring 17 can push the telescopic rod 14 to push the limit block 15 to extend and retract, and the removable washer can be pulled out so that the pin 16 can be inserted into the plate, thereby achieving the purpose of fixing.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An easily calibrated self-tapping screw, comprising a screw body (1) and a calibration body (2), characterized in that: The correction body (2) includes a support plate (3), and the outer surface of the support plate (3) is provided with an installation groove (4); A sleeve (5) is fixedly connected to the lower surface of the support plate (3). A support block (6) is fixedly connected to one end of the sleeve (5). A threaded push rod (7) is provided on the inner wall of the sleeve (5). A knob is rotatably connected to the outer surface of the sleeve (5). The knob is threadedly connected to the threaded push rod (7). A push block (8) is provided at one end of the threaded push rod (7).

2. The self-tapping screw that is easy to correct according to claim 1, characterized in that: The screw body (1) includes a screw head (9), the outer surface of the screw head (9) is provided with an internal hexagonal groove (10), a washer (11) is fixedly connected to the outer surface of the screw head (9), and a screw rod (12) is fixedly connected to the outer surface of the washer (11).

3. The self-tapping screw that is easy to correct according to claim 2, characterized in that: The outer surface of the gasket (11) is provided with a cavity (13), and a telescopic rod (14) is fixedly connected to the inner wall of the cavity (13). One end of the telescopic rod (14) is fixedly connected to a limit block (15).

4. The self-tapping screw that is easy to correct according to claim 3, characterized in that: The outer surface of the limiting block (15) is provided with a pin (16).

5. The self-tapping screw that is easy to correct according to claim 3, characterized in that: A spring (17) is provided on the outer surface of the telescopic rod (14). One end of the spring (17) is fixedly connected to the cavity (13), and the other end of the spring (17) is fixedly connected to the limiting block (15).

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