Special magnetic ring limiting bit for gypsum boards

Abstract

The utility model relates to a special magnetic ring limiting bit for a gypsum board, and relates to the technical field of bits, the special magnetic ring limiting bit comprises a bit main body and a limiting sleeve, the bit main body comprises a handle part, a screwing part and a connecting part used for connecting the handle part and the screwing part, and a limiting check ring is fixedly arranged on the periphery of the connecting position of the screwing part and the connecting part; the limiting sleeve is detachably arranged on the periphery of the screwing part in a sleeving mode, and the end, away from the connecting part, of the screwing part penetrates through the limiting sleeve and extends to the exterior of the limiting sleeve; according to the limiting screwdriver bit, before the limiting screwdriver bit is applied, the limiting sleeve is fixedly arranged on the periphery of the screwing part in a sleeving mode in advance; when the limiting bit is applied, the part, protruding out of the limiting sleeve, of the screwing part is matched with the cross groove in the screw nut part in an inserted mode, then the screw is adjusted to rotate, the downward screwing depth of the screw is accurately controlled through the limiting sleeve, and therefore the possibility that a gypsum board is damaged due to the fact that the screw is screwed downwards too deep or too shallow is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of screwdriver bits, and in particular to a magnetic ring limit screwdriver bit specially used for gypsum wood boards. Background Art

[0002] In the field of building decoration and interior decoration, gypsum wood board is widely used due to its advantages of lightness, easy processing, sound insulation and heat insulation, etc. However, when installing gypsum wood board, it is often necessary to fix it to the wall or keel with screws. In order to ensure the normal outer surface of the gypsum wood board, the nut part of the screw needs to be screwed to a position 1-2 mm lower than the outer surface of the gypsum wood board, that is, there are strict requirements on the countersink depth of the screw to ensure that the screw can firmly fix the gypsum wood board, but will not damage the gypsum wood board or affect its appearance and stability due to being too deep or too shallow.

[0003] In the related art, there are many ways to tighten screws. First, workers directly hold the handle of the screwdriver or the bit, rotate the handle to drive the bit to rotate, and then tighten the screw; second, with the development of power tools, electric drills and electric screwdrivers have become the main tools to drive the bit. They drive the bit to rotate at high speed through the rotation of the motor, greatly improving work efficiency. Workers only need to press the switch to quickly tighten the screw.

[0004] However, the above-mentioned tightening method can be applied to ordinary wooden boards. However, when tightening the screws on the gypsum wooden boards, it is difficult to achieve precise control of the countersink depth because the control of the countersink depth completely depends on the workers' experience and feel. This can easily cause the screws to be screwed in too deep or too shallow. The gypsum wooden board may be damaged or even cracked due to misjudgment or uneven force by the workers. There is room for improvement. Utility Model Content

[0005] The purpose of the present application is to provide a magnetic ring limit screwdriver bit specially used for gypsum wood boards, so as to solve the problem in the above-mentioned related art that the gypsum wood boards may be damaged when the screws on the gypsum wood boards are tightened.

[0006] The present application provides a special magnetic ring limit screwdriver bit for gypsum wood board, which adopts the following technical solution:

[0007] A magnetic ring limit screwdriver bit specially used for gypsum wood boards comprises a screwdriver bit body and a limit sleeve, wherein the screwdriver bit body comprises a handle portion, a tightening portion and a connecting portion for connecting the two, a limit retaining ring is fixedly arranged on the outer periphery of the connection between the tightening portion and the connecting portion; the limit sleeve is detachably sleeved on the outer periphery of the tightening portion, and the end of the tightening portion away from the connecting portion passes through the limit sleeve and extends to the outside of the limit sleeve.

[0008] By adopting the above technical solution, before the limit screwdriver bit is used, the limit sleeve is pre-mounted and fixed on the outer periphery of the tightening part; when the limit screwdriver bit is used, the part of the tightening part protruding from the limit sleeve is plugged into the cross groove on the screw nut part, and then the screw is adjusted to rotate, and the screw-down depth is accurately controlled by the limit sleeve, thereby reducing the possibility of damage to the gypsum board due to the screw being screwed down too deep or too shallow.

[0009] Optionally, a fixed retaining ring is fixedly provided on the outer periphery of the end of the limiting sleeve away from the limiting retaining ring.

[0010] By adopting the above technical solution, when the limiting screwdriver bit is used, due to the installation setting of the fixed retaining ring, the contact area between the limiting sleeve and the outer surface of the gypsum board can be increased by means of the fixed retaining ring, thereby improving the stability of the limiting screwdriver bit when used.

[0011] Optionally, an adjusting gasket is sleeved on the outer periphery of the tightening portion and is located between the limiting retaining ring and the limiting sleeve, and two sides of the adjusting gasket are respectively in contact with the limiting retaining ring and the limiting sleeve.

[0012] By adopting the above technical solution, due to the setting of the adjusting gasket, the size of the tightening part protruding from the limiting sleeve can be adjusted by adding an adjusting gasket between the limiting retaining ring and the limiting sleeve, and then the screw can be screwed down to the required depth according to actual needs, thereby improving the performance of the limiting screw bit.

[0013] Optionally, a magnetic ring is fixedly embedded on the inner wall of the limiting sleeve, the tightening part is made of a metal material that can be magnetically sucked by the magnetic ring, and the outer periphery of the tightening part abuts against the inner wall of the magnetic ring.

[0014] By adopting the above technical solution, the magnetic ring can magnetically fix the tightening part, and the limiting sleeve can be removed from the outer periphery of the tightening part after applying a certain external force, which facilitates the disassembly and assembly of the limiting sleeve.

[0015] Optionally, a locking steel ball is provided on the inner wall of the limiting sleeve, and a locking ring groove for inserting the locking steel ball is provided on the outer periphery of the tightening portion.

[0016] By adopting the above technical solution, when the limiting sleeve is sleeved on the outer periphery of the tightening part, due to the matching arrangement of the locking steel ball and the locking ring groove, the locking steel ball can be inserted into the corresponding locking ring groove, thereby improving the installation stability of the limiting sleeve.

[0017] Optionally, the limiting sleeve is provided with an installation through hole for inserting a locking steel ball, and the inner opening edge of the installation through hole is provided with a closing edge; a fixing sleeve is fixedly provided on the outer periphery of the limiting sleeve, and the fixing sleeve is provided with a limiting through hole overlapping with the installation through hole, and the diameter of the limiting through hole is smaller than the diameter of the installation through hole.

[0018] By adopting the above technical solution, due to the coordinated arrangement of the limiting through hole and the closing opening, the positioning steel ball is limited, thereby reducing the possibility of the positioning steel ball escaping from the openings on both sides of the installation through hole during use.

[0019] Optionally, a limiting groove for inserting the fixing sleeve is provided on the outer circumference of the limiting sleeve.

[0020] By adopting the above technical solution, during the installation of the fixing sleeve, the fixing sleeve is arranged inside the limiting groove, so that the fixing sleeve can be better limited and the overall volume of the limiting sleeve and the fixing sleeve can be reduced.

[0021] Optionally, a protective sleeve is fixed on the outer periphery of the connecting portion.

[0022] By adopting the above technical solution, due to the installation of the protective sleeve, the structural stability of the connecting part can be improved, and the possibility of foreign impurities adhering to the outer surface of the connecting part during the use of the connecting part can be reduced.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Due to the matching arrangement of the limit sleeve and the bit body, before the limit screwdriver bit is used, the limit sleeve is pre-mounted and fixed on the outer periphery of the tightening part; when the limit screwdriver bit is used, the part of the tightening part protruding from the limit sleeve is plugged into the cross groove on the screw nut part, and then the screw is adjusted to rotate, and the screw-down depth is accurately controlled by the limit sleeve, thereby reducing the possibility of damage to the gypsum board due to the screw being screwed down too deep or too shallow. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0027] Figure 2 It is a schematic diagram of the explosion structure of an embodiment of the present application;

[0028] Figure 3 It is a schematic cross-sectional structure diagram of the installation and matching of the protective cover in the embodiment of the present application;

[0029] Figure 4It is a partial cross-sectional structural schematic diagram of the installation and cooperation of the limiting sleeve in the embodiment of the present application;

[0030] Figure 5 yes Figure 4 Enlarged schematic diagram of part A.

[0031] In the figure, 1. bit body; 11. handle part; 12. tightening part; 121. positioning ring groove; 13. connecting part; 14. limiting retaining ring; 2. limiting sleeve; 21. fixing retaining ring; 22. magnetic ring; 23. mounting through hole; 231. closing; 24. limiting recessed groove; 3. positioning steel ball; 4. fixing sleeve; 41. limiting through hole; 5. adjusting gasket; 6. protective sleeve. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] Example:

[0034] Reference Figure 1 and Figure 2 A magnetic ring limit screwdriver bit for gypsum wood board, comprising a screwdriver bit body 1 and a limit sleeve 2, wherein the screwdriver bit body 1 comprises a handle portion 11, a tightening portion 12 and a connecting portion 13 for connecting the two, wherein the handle portion 11, the tightening portion 12 and the connecting portion 13 are integrally formed, and a limit retaining ring 14 is integrally formed on the outer periphery of the connection between the tightening portion 12 and the connecting portion 13;

[0035] The limiting sleeve 2 is detachably sleeved on the outer circumference of the tightening part 12, and the end of the tightening part 12 away from the connecting part 13 passes through the limiting sleeve 2 and extends to the outside of the limiting sleeve 2. When the limiting screwdriver bit is used, the part of the tightening part 12 protruding from the limiting sleeve 2 is plugged into the cross groove on the screw nut part, and then the screw is adjusted to rotate, and the screw-down depth is accurately controlled by the limiting sleeve 2.

[0036] Reference Figure 3 A protective sleeve 6 is fixedly provided on the outer periphery of the connecting part 13. The protective sleeve 6 is made of hard plastic material, which can improve the structural stability of the connecting part 13 and reduce the possibility of external impurities adhering to the outer surface of the connecting part 13 during the use of the connecting part 13.

[0037] Reference Figure 4 A fixed retaining ring 21 is fixedly provided on the outer periphery of the end of the limiting sleeve 2 away from the limiting retaining ring 14. When the limiting screwdriver bit is used, the fixed retaining ring 21 can increase the contact area between the limiting sleeve 2 and the outer surface of the gypsum board, thereby improving the stability of the limiting screwdriver bit when used.

[0038] Reference Figure 4A magnetic ring 22 is fixedly embedded on the inner wall of the limiting sleeve 2, wherein the inner wall of the magnetic ring 22 abuts against the outside of the tightening part 12, and the handle part 11, the tightening part 12 and the connecting part 13 are all made of metal materials that can be attracted by the magnetic block, so the magnetic ring 22 can magnetically fix the tightening part 12, and the limiting sleeve 2 can be removed from the outer periphery of the tightening part 12 after applying a certain external force, thereby facilitating the disassembly and assembly of the limiting sleeve 2.

[0039] Reference Figure 4 A locking steel ball 3 is arranged on the inner wall of the limiting sleeve 2, wherein a mounting through hole 23 is opened on the limiting sleeve 2 for inserting and installing the locking steel ball 3, and a locking ring groove 121 is opened on the outer periphery of the tightening part 12 for inserting the locking steel ball 3; when the limiting sleeve 2 is sleeved on the outer periphery of the tightening part 12, the locking steel ball 3 can be inserted into the corresponding locking ring groove 121, thereby improving the installation stability of the limiting sleeve 2.

[0040] Reference Figure 4 and Figure 5 The inner opening edge of the mounting through hole 23 is provided with a closing opening 231 for limiting the positioning of the positioning steel ball 3; a fixing sleeve 4 is fixedly provided on the outer periphery of the limiting sleeve 2, and a limiting recess 24 for the fixing sleeve 4 to be placed is provided on the outer periphery of the limiting sleeve 2, so as to better limit the fixing sleeve 4 and also reduce the overall volume of the limiting sleeve 2 and the fixing sleeve 4;

[0041] The fixing sleeve 4 is a metal pick that is bent and fixed inside the limiting groove 24. This is a conventional fixing method and will not be described here. At the same time, a limiting through hole 41 is opened on the fixing sleeve 4 and coincides with the mounting through hole 23. The diameter of the limiting through hole 41 is smaller than the diameter of the mounting through hole 23, so as to further limit the positioning of the locking steel ball 3.

[0042] Reference Figure 4 An adjusting gasket 5 is sleeved on the outer periphery of the tightening part 12 and is located between the limiting retaining ring 14 and the limiting sleeve 2, and the two sides of the adjusting gasket 5 are respectively abutted against the limiting retaining ring 14 and the limiting sleeve 2; the number of the adjusting gaskets 5 can be one, two or three, and the number of the adjusting gaskets 5 can be increased or reduced according to the actual depth requirement of the screw, thereby adjusting the size of the tightening part 12 protruding from the limiting sleeve 2.

[0043] The implementation principle of the embodiment of the present application is:

[0044] Before the limited screwdriver bit is used, the number of adjustment washers 5 to be installed is first determined according to the actual depth requirement of the screw, and then the adjustment washers 5 and the limited sleeve 2 are sequentially sleeved on the outer periphery of the tightening part 12, so that the locking steel ball 3 can be inserted into the corresponding locking ring groove 121, and the tightening part 12 is further magnetically fixed by the magnetic ring 22;

[0045] When the limit screwdriver bit is in use, the portion of the tightening portion 12 protruding from the limit sleeve 2 is plugged into the cross groove on the screw nut portion, thereby adjusting the screw to rotate, and the limit sleeve 2 is used to accurately control the screw-down depth.

[0046] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0047] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic ring limit screwdriver bit for gypsum wood board, characterized in that: The tool comprises a screwdriver bit body (1) and a limiting sleeve (2), wherein the screwdriver bit body (1) comprises a handle portion (11), a tightening portion (12) and a connecting portion (13) for connecting the two, and a limiting retaining ring (14) is fixedly arranged on the outer periphery of the connecting portion between the tightening portion (12) and the connecting portion (13); The limiting sleeve (2) is detachably sleeved on the outer periphery of the tightening portion (12); the end of the tightening portion (12) away from the connecting portion (13) passes through the limiting sleeve (2) and extends to the outside of the limiting sleeve (2).

2. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 1, characterized in that: A fixed retaining ring (21) is fixedly provided on the outer periphery of the end of the limiting sleeve (2) away from the limiting retaining ring (14).

3. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 1, characterized in that: An adjusting gasket (5) is sleeved on the outer periphery of the tightening portion (12) and is located between the limiting retaining ring (14) and the limiting sleeve (2). Two sides of the adjusting gasket (5) are respectively in contact with the limiting retaining ring (14) and the limiting sleeve (2).

4. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 1, characterized in that: A magnetic ring (22) is fixedly embedded on the inner wall of the limiting sleeve (2); the tightening portion (12) is made of a metal material that can be magnetically attracted by the magnetic ring (22); and the outer periphery of the tightening portion (12) abuts against the inner wall of the magnetic ring (22).

5. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 1, characterized in that: A locking steel ball (3) is arranged on the inner wall of the limiting sleeve (2), and a locking ring groove (121) for inserting the locking steel ball (3) is provided on the outer periphery of the tightening portion (12).

6. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 5, characterized in that: The limiting sleeve (2) is provided with a mounting through hole (23) for inserting the locking steel ball (3), and the inner opening edge of the mounting through hole (23) is provided with a closing opening (231); A fixing sleeve (4) is fixedly arranged on the outer periphery of the limiting sleeve (2), and a limiting through hole (41) which coincides with the mounting through hole (23) is opened on the fixing sleeve (4), and the diameter of the limiting through hole (41) is smaller than the diameter of the mounting through hole (23).

7. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 6, characterized in that: The outer circumference of the limiting sleeve (2) is provided with a limiting recessed groove (24) for the fixing sleeve (4) to be placed therein.

8. The magnetic ring limit screwdriver bit for gypsum wood board according to claim 1, characterized in that: A protective sleeve (6) is fixedly sleeved on the outer periphery of the connecting portion (13).

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