Tapping screw capable of preventing deviation

Abstract

The utility model relates to the technical field of screws, and discloses an anti-skewing self-tapping screw which comprises a screw body, a stabilizing assembly is detachably mounted on the outer wall of the screw body through a mounting assembly, the stabilizing assembly comprises a base, supporting plates are fixedly connected to the left side and the right side of the base, sliding grooves are formed in the tops of the supporting plates, and the supporting plates are fixedly connected with the sliding grooves. A sliding groove is formed in the top of the base, a sliding block is slidably connected to the inner wall of the sliding groove, a hinge rod is hinged to the top of the sliding block, a circular ring is hinged to the top end of the hinge rod, a cylindrical rod is fixedly connected to the front end of the top of the base, and the mounting assembly comprises two sets of guide rods. According to the self-tapping screw, the stabilizing assembly is arranged, and when the self-tapping screw is screwed, the circular ring can slide along the outer wall of the cylindrical rod, so that the self-tapping screw is guided and stabilized, the self-tapping screw is prevented from inclining during screwing, and the installation efficiency of the self-tapping screw is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screws, in particular to a self-tapping screw capable of preventing deflection. Background Art

[0002] A screw is a mechanical connector, usually consisting of three parts: a head, a screw rod and a thread. Its main function is to firmly fix two or more objects together by screwing in and utilizing the mechanical principles of threads.

[0003] Self-tapping screws are a specially designed type of screw. Their main feature is that they can form or cut threads by themselves during installation, without the need to drill holes or add nuts in the workpiece in advance. This feature gives self-tapping screws a clear advantage in installation efficiency and convenience. However, if the worker's rotational force is uneven or the angle applied is incorrect, the screw may tilt or go astray when entering the workpiece.

[0004] Considering that the existing self-tapping screws usually require workers to hold the screws by hand to tighten them, or to set preset holes at the screw positions in advance to prevent the self-tapping screws from going astray. Considering that holding the screws by hand and setting preset holes will reduce the safety of the workers and the installation efficiency of the self-tapping screws, an anti-skewing self-tapping screw is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a self-tapping screw that prevents deflection, aiming to improve the problem in the prior art that the self-tapping screw is prevented from deflecting by hand support and setting pre-set holes, which will lead to reduced safety of workers and reduced installation efficiency of the self-tapping screw.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a self-tapping screw that prevents deflection, comprising a screw body, the outer wall of which can be installed and removed with a stabilizing component through an installation component;

[0007] The stabilizing component includes a base, and support plates are fixedly connected to the left and right sides of the base. A slide groove is provided on the top of the support plate, and a slider is slidably connected to the inner wall of the slide groove. The top of the slider is hinged with a hinge rod, and the top end of the hinge rod is hinged with a ring. The top front end of the base is fixedly connected to a cylindrical rod.

[0008] As a further description of the above technical solution:

[0009] The mounting assembly includes guide rods, which are provided in two groups. The right end of one group of guide rods is fixedly connected to a semicircular ring A, and the left end of the other group of guide rods is fixedly connected to a semicircular ring B. The left side of the semicircular ring B is fixedly connected to an insert block, and the right side of the semicircular ring A is provided with a slot.

[0010] As a further description of the above technical solution:

[0011] The outer circumference of the cylindrical rod penetrates and is slidably connected to the inner wall of the bottom front end of the ring, and the top end of the cylindrical rod is fixedly connected to a handle.

[0012] As a further description of the above technical solution:

[0013] The outer periphery of the guide rod penetrates and is slidably connected to the outer wall of the ring, and the outer wall of the insert block is inserted into the inner wall of the slot.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the semicircular ring A is clamped with the top of the screw body, and the inner wall of the semicircular ring B is clamped with the top of the screw body.

[0016] As a further description of the above technical solution:

[0017] The top inner wall of the plug block is elastically connected with a wedge block via a spring. The plug blocks are provided in two groups, and the two groups of the plug blocks are symmetrically distributed along the left midline of the semicircular ring B.

[0018] As a further description of the above technical solution:

[0019] One end of the spring is fixedly connected to the top inner wall of the insert block, and the other end of the spring is fixedly connected to the bottom of the wedge block.

[0020] As a further description of the above technical solution:

[0021] The outer wall of the wedge block is slidably connected with the inner wall of the top of the insert block, and the outer wall of the wedge block is clamped with the inner wall of the slot.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, by providing a stabilizing component, when the self-tapping screw is screwed, the ring will slide along the outer wall of the cylindrical rod, and at the same time drive the two sets of hinged rods to move, so that the two sets of slide blocks slide along the inner wall of the slide groove at the same time, thereby guiding and stabilizing the self-tapping screw, avoiding the self-tapping screw from tilting when being screwed, and improving the installation efficiency of the self-tapping screw.

[0024] 2. In the utility model, by providing an installation component, the semicircular ring A and the semicircular ring B are limited or released by plugging or releasing the plugging effect of the plug block and the slot, thereby facilitating the assembly and disassembly of the screw body and improving the installation efficiency of the self-tapping screw. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1This is a schematic diagram of the overall structure of a self-tapping screw that prevents deflection proposed by the utility model;

[0026] Figure 2 This is a schematic diagram of the main structure of a stabilizing component of a self-tapping screw that prevents deflection proposed by the utility model;

[0027] Figure 3 This is a schematic diagram of the main structure of a semicircular ring A of a self-tapping screw for preventing deflection proposed by the utility model;

[0028] Figure 4 The utility model provides a schematic diagram of the split structure of the semicircular ring B of the anti-deviation self-tapping screw.

[0029] Legend:

[0030] 1. Screw body; 2. Stabilizing assembly; 21. Base; 22. Slider; 23. Articulated rod; 24. Ring; 25. Cylindrical rod; 26. Handle; 27. Support plate; 3. Mounting assembly; 31. Semicircular ring A; 32. Semicircular ring B; 33. Guide rod; 34. Insert block; 35. Slot; 36. Wedge block; 37. Spring. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1 The utility model provides an embodiment: a self-tapping screw with anti-skewing, including a screw body 1. The outer wall of the screw body 1 can be installed and removed with a stabilizing component 2 through an installation component 3. The installation component 3 makes it easy to install the screw body 1 on the stabilizing component 2, or to disassemble the stabilizing component 2. The stabilizing component 2 can ensure the stability of the screw body 1 when it is screwed, so as to prevent the screw body 1 from skewing.

[0033] Reference Figure 1 and Figure 2The stabilizing component 2 includes a base 21, and support plates 27 are fixedly connected to the left and right sides of the base 21. The support plates 27 support the slider 22, increase the contact area with the workpiece, and improve the stability of the screw body 1 when entering the workpiece. A slide groove is provided on the top of the support plate 27, which guides the slider 22. The inner wall of the slide groove is slidably connected with the slider 22. The movement effect of the hinged rod 23 drives the slider 22 to slide. The top of the slider 22 is hinged with a hinged rod 23. The hinged rod 23 and the slider 22 are symmetrically distributed in two groups. The top of the hinged rod 23 is hinged with a ring 24. The semicircular ring A31 and the semicircular ring B32 drive the ring 24 to move vertically. The top front end of the base 21 is fixedly connected with a cylindrical rod 25, which guides the ring 24 through the cylindrical rod 25 to prevent the ring 24 from shifting when moving.

[0034] Reference Figure 3 and Figure 4 The installation component 3 includes a guide rod 33, and two groups of guide rods 33 are provided. The two groups of guide rods 33 are provided to guide the semicircular ring A31 and the semicircular ring B32 respectively, so as to prevent the semicircular ring A31 and the semicircular ring B32 from offsetting when moving. The right end of one group of guide rods 33 is fixedly connected with the semicircular ring A31, and the left end of the other group of guide rods 33 is fixedly connected with the semicircular ring B32. The shape and size of the inner walls of the semicircular ring A31 and the semicircular ring B32 are the same as the shape and size of the top large head part of the screw body 1, so as to facilitate the installation of the screw body 1. The left side of the semicircular ring B32 is fixedly connected with an insert block 34, and the fixing effect of the insert block 34 prevents the insert block 34 from falling off. A slot 35 is provided on the right side of the semicircular ring A31, and the slots 35 are symmetrically distributed in two groups.

[0035] Reference Figure 1 and Figure 2 The outer circumference of the cylindrical rod 25 penetrates and is slidably connected to the inner wall of the bottom front end of the ring 24. Through the moving effect of the ring 24, the two groups of hinged rods 23 are driven to move at the same time. A handle 26 is fixedly connected to the top of the cylindrical rod 25. The handle 26 is convenient for the staff to support the stabilization component 2, thereby ensuring the stability of the stabilization component 2. The outer circumference of the guide rod 33 penetrates and is slidably connected to the outer wall of the ring 24. The guide rod 33 can limit the semi-circular ring A31 and the semi-circular ring B32 to prevent the semi-circular ring A31 and the semi-circular ring B32 from moving after the installation of the screw body 1 is completed. The outer wall of the plug block 34 is plugged into the inner wall of the slot 35. Through the plug-in effect of the plug block 34 and the slot 35, the semi-circular ring A31 and the semi-circular ring B32 can be kept fixedly installed together.

[0036] Reference Figure 3 and Figure 4The inner wall of the semicircular ring A31 is clamped with the top of the screw body 1, and the inner wall of the semicircular ring B32 is clamped with the top of the screw body 1. The semicircular ring A31 and the semicircular ring B32 are clamped with the top of the screw body 1 at the same time, so that the screw body 1 can be installed on the semicircular ring A31 and the semicircular ring B32, and can be rotated. The top inner wall of the plug block 34 is elastically connected with the wedge block 36 through the spring 37. Through the elastic force of the spring 37, the wedge block 36 always maintains the clamping effect with the slot 35 without being affected by external force, thereby limiting the plug block 34. Two groups of plug blocks 34 are provided, and the two groups of plug blocks 34 are symmetrically distributed along the left midline of the semicircular ring B32. By providing two groups of plug blocks 34, they are respectively plugged with the two groups of slots 35, thereby improving the stability of the semicircular ring A31 and the semicircular ring B32 after installation.

[0037] Reference Figure 4 One end of the spring 37 is fixedly connected to the top inner wall of the plug block 34, and the other end of the spring 37 is fixedly connected to the bottom of the wedge block 36. The fixing effect of the spring 37 keeps the wedge block 36 fixed to prevent the wedge block 36 from falling off. The outer wall of the wedge block 36 is slidably connected to the top inner wall of the plug block 34. The sliding effect of the wedge block 36 allows the wedge block 36 to be engaged or released from the slot 35. The outer wall of the wedge block 36 is engaged with the inner wall of the slot 35. The engaging effect of the wedge block 36 and the slot 35 allows the slot 35 to limit the plug block 34.

[0038] Working principle: When the staff needs to use self-tapping screws for installation, the staff will clamp the top big head part of the screw body 1 on the inner wall of the semicircular ring A31 and the semicircular ring B32, so that the plug block 34 set on the semicircular ring B32 is plugged into the slot 35 set on the semicircular ring A31, and at the same time, the wedge block 36 is clamped with the slot 35 under the elastic force of the spring 37, and at the same time, the semicircular ring A31 and the semicircular ring B32 are limited, so that the screw body 1 remains installed on the semicircular ring A31 and the semicircular ring B32.

[0039] Then, the base 21 is placed on the workpiece where the screw body 1 needs to be installed, so that the pointed part of the screw body 1 is located at the position where it needs to be screwed. The staff holds the handle 26 and uses a screwdriver tool to screw the top of the screw body 1. When the screw body 1 is screwed, the screw body 1 will drive the semicircular ring A31 and the semicircular ring B32 to continue to decline, and at the same time, the guide rod 33 will drive the ring 24 to slide downward along the outer wall of the cylindrical rod 25. At the same time, the ring 24 will drive the two groups of hinged rods 23 to move, and the two groups of sliding blocks 22 are driven by the two groups of hinged rods 23 to slide along the inner walls of the two groups of sliding grooves and move away from each other until the screw body 1 is completely screwed into the interior of the workpiece. The base 21 and the support plate 27 play a stabilizing role in the screwing process of the screw body 1 to prevent the screw body 1 from going astray.

[0040] When the screw body 1 is screwed, the staff presses the wedge block 36 to release the clamping effect on the slot 35 and release the limiting effect on the insert block 34. The staff separates the semicircular ring A31 and the semicircular ring B32 to both sides, thereby releasing the installation effect on the screw body 1, making it easier to disassemble the stabilizing component 2 so that the subsequent screw body 1 can be used.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-tapping screw that prevents deflection, comprising a screw body (1), characterized in that: The outer wall of the screw body (1) can be installed and removed with a stabilizing component (2) via a mounting component (3); The stabilizing assembly (2) comprises a base (21), the left and right sides of the base (21) are fixedly connected to support plates (27), the top of the support plate (27) is provided with a slide groove, the inner wall of the slide groove is slidably connected to a slider (22), the top of the slider (22) is hinged to a hinge rod (23), the top end of the hinge rod (23) is hinged to a ring (24), and the top front end of the base (21) is fixedly connected to a cylindrical rod (25).

2. The anti-skewing self-tapping screw according to claim 1, characterized in that: The mounting assembly (3) comprises a guide rod (33), wherein the guide rod (33) is provided in two groups, wherein the right end of the guide rod (33) of one group is fixedly connected to a semicircular ring A (31), and the left end of the guide rod (33) of the other group is fixedly connected to a semicircular ring B (32), the left side of the semicircular ring B (32) is fixedly connected to an insert block (34), and the right side of the semicircular ring A (31) is provided with a slot (35).

3. The anti-skewing self-tapping screw according to claim 1, characterized in that: The outer periphery of the cylindrical rod (25) penetrates and is slidably connected to the inner wall of the bottom front end of the ring (24), and the top end of the cylindrical rod (25) is fixedly connected to a handle (26).

4. The anti-skewing self-tapping screw according to claim 2, characterized in that: The outer periphery of the guide rod (33) penetrates and is slidably connected to the outer wall of the ring (24), and the outer wall of the insert block (34) is plugged into the inner wall of the slot (35).

5. The anti-skewing self-tapping screw according to claim 2, characterized in that: The inner wall of the semicircular ring A (31) is clamped with the top end of the screw body (1), and the inner wall of the semicircular ring B (32) is clamped with the top end of the screw body (1).

6. The anti-skewing self-tapping screw according to claim 4, characterized in that: The top inner wall of the insert block (34) is elastically connected to a wedge block (36) via a spring (37). The insert blocks (34) are provided in two groups, and the two groups of insert blocks (34) are symmetrically distributed along the left midline of the semicircular ring B (32).

7. The anti-skewing self-tapping screw according to claim 6, characterized in that: One end of the spring (37) is fixedly connected to the top inner wall of the insert (34), and the other end of the spring (37) is fixedly connected to the bottom of the wedge (36).

8. The anti-skewing self-tapping screw according to claim 7, characterized in that: The outer wall of the wedge block (36) is slidably connected to the inner wall of the top of the insert block (34), and the outer wall of the wedge block (36) is snap-fitted to the inner wall of the slot (35).

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