CN113969929A

CN113969929A - Adjustable self-tapping screw

Info

Publication number: CN113969929A
Application number: CN202111201697.5A
Authority: CN
Inventors: 贾学冉
Original assignee: Huzhou Gugou New Material Co ltd
Current assignee: Huzhou Gugou New Material Co ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-01-25

Abstract

The invention relates to an adjustable self-tapping screw, which comprises a screw main body, wherein the bottom of the screw main body is connected with a tool bit assembly, a sealing assembly is connected in the screw main body, a mounting groove and a connecting groove are formed in the screw main body, the tool bit assembly comprises a tool bit main body and a connecting piece arranged at the top end of the tool bit main body, the tool bit main body is inserted in the connecting groove through the connecting piece, the tool bit assembly is used for being matched with the screw main body to drill into an object, the sealing assembly comprises a first sealing piece and a second sealing piece, the second sealing piece seals the connecting groove and simultaneously drives the first sealing piece to ascend along the mounting groove to seal the mounting groove, an adjusting assembly is also connected in the tool bit assembly, and the adjusting assembly is used for adjusting the overall length of the connecting piece; the invention solves the problems of inconvenient disassembly, unattractive appearance after installation, danger and incapability of adjusting equipment with different thicknesses in the traditional technology.

Description

Adjustable self-tapping screw

Technical Field

The invention relates to the technical field of screws, in particular to an adjustable self-tapping screw.

Background

Screw on the existing market, after fixing the equipment that needs to be fixed, can be inevitable leave the screw tail after piercing through, not only it is unsightly but also most screw tail is all more sharp, there is the potential safety hazard, and current screw does not have the function of adjusting length, when installing the equipment that thickness is greater than or is less than its self length, can not carry out effective firm installation, need change the screw that corresponds the size in addition, can greatly increased installation time, can't in time install, it is not convenient to have the dismantlement, it is pleasing to the eye and have the danger and can't adjust to the equipment of different thickness after the installation.

Disclosure of Invention

The invention aims to overcome the defects of the prior art, and provides an adjustable self-tapping screw, which is characterized in that a screw main body is arranged, a tool bit assembly is connected to the bottom of the screw main body, a sealing assembly is connected in the screw main body, a mounting groove and a connecting groove are formed in the screw main body, the tool bit assembly is internally provided with a tool bit main body and a connecting piece, the tool bit main body is inserted in the connecting groove through the connecting piece, a first sealing piece and a second sealing piece are arranged in the sealing assembly, and an adjusting assembly is also connected in the tool bit assembly.

Aiming at the technical problems, the technical scheme adopted by the invention is as follows:

the utility model provides an adjustable self tapping screw, includes the screw main part, screw main part bottom is connected with the tool bit subassembly, screw main part in-connection has sealing assembly, mounting groove and spread groove have been seted up in the screw main part, the tool bit subassembly includes the tool bit main part and sets up the connecting piece on tool bit main part top, the tool bit main part passes through the connecting piece and pegs graft in the spread groove, the tool bit subassembly is used for cooperating the screw main part to bore inside the object, sealing assembly includes first sealing member and second sealing member, the second sealing member drives first sealing member to rise along the mounting groove and seals the mounting groove to the spread groove sealed simultaneously, still be connected with the regulation subassembly in the tool bit subassembly, the whole length that the regulation subassembly is used for adjusting the connecting piece.

Preferably, a through hole communicating the mounting groove and the connecting groove is formed in the screw body.

Preferably, a bearing groove a is formed in the connecting piece, a telescopic hole a is formed in the top end of the connecting piece, a sliding groove a is formed in the inner wall of the bearing groove a, and rotating grooves a with the same size are formed in the top and the bottom of the bearing groove a.

Preferably, the bottom of the first sealing element is provided with a connecting rod, the shape of the first sealing element is matched with the mounting groove in a cross shape, and the thickness of the first sealing element is half of the depth of the mounting groove.

Preferably, the diameter of the connecting rod is the same as that of the through hole, and the length of the connecting rod is larger than the depth of the through hole.

Preferably, the second sealing element is provided with an insertion hole a, the bottom of the second sealing element is provided with a pressing block, the size of the second sealing element is the same as that of the connecting groove, and the diameter of the insertion hole a is the same as that of the connecting rod.

Preferably, the adjusting assembly comprises a first extension piece and a second extension piece which is arranged in the first extension piece in a sliding mode, a bearing groove b is formed in the first extension piece, a telescopic hole b is formed in the top end of the first extension piece, a sliding groove b is formed in the inner wall of the bearing groove b, and rotating grooves b which are the same in size are formed in the top and the bottom of the bearing groove b.

Preferably, the bottom of the first extension piece is provided with a rotating block a, two sides of the rotating block a are symmetrically provided with sliding blocks a, the sliding blocks a are in sliding fit with sliding grooves a formed in the inner wall of the bearing groove a, and the diameter of the rotating block a is larger than that of a telescopic hole a formed in the top end of the connecting piece, so that the rotating block a cannot fall off from the bearing groove a in the connecting piece.

Preferably, a sliding block is arranged at the top of the second extension piece, a rotating block b is arranged at the bottom of the second extension piece, sliding blocks b are symmetrically arranged on two sides of the rotating block b, the sliding blocks b are in sliding fit with sliding grooves b formed in the inner wall of a bearing groove b, the diameter of each inserting hole b is the same as that of each connecting rod, and the diameter of each rotating block b is larger than that of a telescopic hole b formed in the top end of the first extension piece, so that the rotating block b cannot be separated from the bearing groove b in the first extension piece.

In yet another preferred embodiment, the first extension piece has the same diameter as the telescopic hole a, and the second extension piece has the same diameter as the telescopic hole b.

The invention has the beneficial effects that:

1. the invention is provided with the cutter head component, the connecting piece in the cutter head component enables the cutter head body to be connected with the screw main body in an inserting way, the connecting way is simple and convenient, the utility model is efficient and labor-saving in practical application, the cutter head main body adopts the shape of the cutter blade for the tail drill, and pre-punching is not needed by other punching equipment during installation, so that the installation time is saved, the first extending piece is installed by matching the bearing groove a arranged in the connecting piece with the first extending piece, the first extension piece can realize the extension of connecting piece length through passing flexible hole an through the cooperation of seting up at the flexible hole an on connecting piece top and first extension piece, thereby the spout an that sets up on the bearing groove a inner wall cooperates with the slider a that first extension piece bottom set up, thereby has realized that first extension piece slides in the connecting piece and makes the length of connecting piece obtain the extension of first section.

2. The invention is provided with a sealing component, the shape of a first sealing element in the sealing component is matched with the mounting groove, the thickness of the first sealing element is half of the depth of the mounting groove, when the screw is mounted, the screw can be mounted after the first sealing element is pressed downwards to expose the mounting groove, the mounting is convenient and rapid, after the screw is mounted, the connecting rod is pushed from the lower part through a second sealing element to enable the first sealing element to ascend to plug the mounting groove, the mounting groove is sealed, the situation that teeth in the mounting groove are damaged by external force due to exposure is avoided, the teeth cannot be drilled normally, the connecting groove is plugged after the cutter head component is separated through the matching of the second sealing element and a connecting groove arranged in a screw main body, the damage of the screw caused by corrosion in the screw main body is avoided, a part of the connecting rod is plugged into a jack a in the process that the second sealing element pushes the connecting rod, so that the second sealing element is buckled with the first sealing element, the firmness and the sealing performance of the first sealing element and the second sealing element are further enhanced.

3. The adjusting assembly is arranged, the sliding of the second extending piece in the bearing groove b is realized through the matching of the sliding groove b formed in the inner wall of the bearing groove b and the sliding blocks b on the two sides of the rotating block b, so that the length of the connecting piece is further extended, the second extending piece rotates in the bearing groove b through the matching of the rotating groove b formed in the bottom of the bearing groove b and the rotating block b, the second extending piece is limited when the length of the connecting piece does not need to be adjusted, the mechanism is ingenious, the adjusting mode is convenient and fast, and the problems that a traditional screw cannot effectively penetrate when dealing with an object with the thickness larger than the length, the screw needs to be matched and replaced, and time and labor are wasted in the installation process are solved.

To sum up, this adjustable self tapping screw of disconnect-type has that the separation mode is convenient, the installation back is more pleasing to the eye safer, drilling depth is adjustable, the mounting groove obtains advantages such as effective protection, is particularly useful for screw technical field.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic cross-sectional view of a screw body;

FIG. 2 is a schematic view of a cutter head assembly;

FIG. 3 is a schematic cross-sectional view of a cutter head assembly;

FIG. 4 is a schematic structural view of a split type self-tapping screw;

FIG. 5 is a schematic view of an exploded structure of the seal assembly;

FIG. 6 is an exploded view of the adjustment assembly;

FIG. 7 is a schematic cross-sectional view of an adjustment assembly;

FIG. 8 is a cross-sectional view of the sealing assembly sealing the screw body;

FIG. 9 is a cross-sectional view of the connector when not extended;

FIG. 10 is a cross-sectional view of the first elongate member extending the connector;

fig. 11 is a cross-sectional view of the second elongated member further elongated the connector.

Detailed Description

The technical scheme in the embodiment of the invention is clearly and completely explained by combining the attached drawings.

Example one

As shown in fig. 1 to 11, an adjustable self-tapping screw, including a screw main body 1, a tool bit assembly 2 is connected to the bottom of the screw main body 1, a sealing assembly 3 is connected in the screw main body 1, an installation groove 101 and a connection groove 102 are provided on the screw main body 1, the tool bit assembly 2 includes a tool bit main body 201 and a connection member 202 provided at the top end of the tool bit main body 201, the tool bit main body 201 is inserted in the connection groove 102 through the connection member 202, the tool bit assembly 2 is used for cooperating with the screw main body 1 to drill into an object, the sealing assembly 3 includes a first sealing member 301 and a second sealing member 302, the second sealing member 302 drives the first sealing member 301 to ascend along the installation groove 101 while sealing the connection groove 102, an adjustment assembly 4 is further connected in the tool bit assembly 2, the adjustment assembly 4 is used for adjusting the overall length of the connection member 202, the connection member 202 in the tool bit assembly 2 connects the tool bit main body 201 and the screw main body 1 in an insertion manner The connection mode is simple and convenient, after the screw is installed, the connecting piece 202 and the first sealing piece 301 can be unlocked and slide out from the connecting groove 102 by pinching the tool bit main body 201 and pulling outwards, so that the tool bit main body 201 and the connecting piece 202 are separated from the screw main body 1, then, the second sealing member 302 is inserted into the connecting groove 102, and after the second sealing member 302 is fastened with the first sealing member 301 through the insertion hole a304, high-efficient laborsaving during in-service use, the blade shape is adopted to tool bit body 201 simultaneously, need not punch in advance with the help of other drilling equipment when the installation, has saved installation time, has solved traditional technology and has spent when screw main part and screw tail separate, the screw tail exposes outside unsightly and can cause injury and screw because the fixed length leads to the unable problem of adjusting of drilling depth because of the touching after the installation.

As shown in fig. 1 and 4, a through hole 103 for communicating the mounting groove 101 and the connecting groove 102 is formed in the screw body 1, the connecting rod 303 at the bottom of the first sealing member 301 can be lowered into the connecting groove 102 through the through hole 103, so that the first sealing member 301 can be lowered to leave a mounting space, when mounting is performed by using a tool such as an electric drill or a screwdriver, the first sealing member 301 in the mounting groove 101 is pressed downward to expose the mounting groove 101, and then the screw is mounted on the device through the mounting groove 101.

As shown in fig. 2 and 3, the connecting member 202 is provided with a bearing groove a203 therein, the top end of the connecting member 202 is provided with a telescopic hole a204, the inner wall of the bearing groove a203 is provided with a sliding groove a205, the top and the bottom of the bearing groove a203 are provided with rotating grooves a206 with the same size, the bearing groove a203 provided in the connecting member 202 is matched with the first extension member 401 to realize the installation of the first extension member 401, the telescopic hole a204 provided in the top end of the connecting member 202 is matched with the first extension member 401 to enable the first extension member 401 to realize the extension of the length of the connecting member 202 by passing through the telescopic hole a204, the sliding groove a205 provided in the inner wall of the bearing groove a203 is matched with a sliding block a408 provided at the bottom of the first extension member 401 to realize the sliding of the first extension member 401 in the connecting member 202 to extend the length of the connecting member 202, the rotating groove a206 provided at the bottom of the bearing groove a203 is matched with a rotating block a407, the first extension piece 401 rotates in the bearing groove a203, then the first extension piece 401 is limited when the length of the connecting piece 202 does not need to be adjusted through the matching of the sliding block a408 and the rotating groove a206, the rotating groove a206 formed in the top of the bearing groove a203 is matched with the rotating block a407, and the first extension piece 401 is limited and fixed after sliding and extending, so that the second extension piece 402 can be adjusted conveniently.

As shown in fig. 5, a connecting rod 303 is provided at the bottom of the first sealing member 301, the first sealing member 301 is cross-shaped to fit the installation groove 101, the thickness of the first sealing member 301 is half of the depth of the installation groove 101, and the first sealing member 301 is pressed downward by an electric drill or a screwdriver to expose the installation groove 101 for installation.

As shown in fig. 1 and 5, the diameter of the connection rod 303 is the same as the diameter of the through hole 103, the length of the connection rod 303 is greater than the depth of the through hole 103, and the diameter of the connection rod 303 is the same as the diameter of the through hole 103 so that the connection rod 303 can tightly seal the through hole 103.

As shown in fig. 1 and 5, a jack a304 is formed on the second sealing element 302, a pressing block 305 is arranged at the bottom of the second sealing element 302, the size of the second sealing element 302 is the same as that of the connecting groove 102, the diameter of the jack a304 is the same as that of the connecting rod 303, the connecting rod 303 arranged at the bottom of the first sealing element 301 is matched with the second sealing element 302, when the screw is installed, the connecting rod 303 is pushed from below through the second sealing element 302 to lift the first sealing element 301 to plug the mounting groove 101, so that the mounting groove 101 is sealed to prevent the teeth in the mounting groove 101 from being damaged by external force and thus unable to drill normally, the connecting groove 102 is separated from the cutter head assembly 2 through the matching of the second sealing element 302 and the connecting groove 102 formed in the screw body 1, thereby avoiding the damage of the screw caused by the corrosion of the plug in the screw body 1, the diameter of the jack a304 formed in the second sealing element 302 is the same as that of the connecting rod 303, during the process that the second sealing element 302 pushes the connecting rod 303, a part of the connecting rod 303 is inserted into the insertion hole a304, so that the second sealing element 302 is fastened with the first sealing element 301, and the firmness and the sealing performance of the first sealing element 301 and the second sealing element 302 are further enhanced.

As shown in fig. 6 and 7, the adjusting assembly 4 includes a first extension member 401 and a second extension member 402 slidably disposed in the first extension member 401, a bearing groove b403 is formed in the first extension member 401, a telescopic hole b404 is formed at the top end of the first extension member 401, a sliding groove b405 is formed on the inner wall of the bearing groove b403, rotating grooves b406 having the same size are formed at the top and the bottom of the bearing groove b403, the bearing groove b403 formed in the first extension member 401 is matched with the second extension member 402 to mount the second extension member 402, the sliding of the second extension member 402 in the bearing groove b403 is realized by matching the sliding groove b405 formed in the inner wall of the bearing groove b403 with sliding blocks b412 on both sides of a rotating block b411, so as to further extend the length of the connecting member 202, the rotating groove b406 formed at the top of the bearing groove b403 is matched with the rotating block b407, so that the second extension member 402 is limited after being slid and extended, the mechanism is ingenious, and the adjusting mode is convenient.

As shown in fig. 6 and 7, the bottom of the first extension piece 401 is provided with a rotating block a407, two sides of the rotating block a407 are symmetrically provided with sliding blocks a408, the sliding blocks a408 are in sliding fit with sliding grooves a205 formed on the inner wall of the bearing groove a203, and the second extension piece 402 rotates in the bearing groove b403 through the cooperation of a rotating groove b406 formed at the bottom of the bearing groove b403 and the rotating block b 407.

As shown in fig. 6 and 7, a sliding block 409 is arranged at the top of the second extension piece 402, a socket b410 is formed in the sliding block 409, a rotating block b411 is arranged at the bottom of the second extension piece 402, sliding blocks b412 are symmetrically arranged on two sides of the rotating block b411, the sliding blocks b412 are in sliding fit with sliding grooves b405 formed in the inner wall of the bearing groove b403, the diameter of the socket b410 is the same as that of the connecting rod 303, and then the second extension piece 402 is limited when the length of the connecting piece 202 does not need to be adjusted through the matching of the sliding blocks b412 and the rotating groove b406, so that the problems that a traditional screw cannot effectively penetrate when dealing with an object with the thickness of which is greater than the length, the screw needs to be paired additionally for replacing, and the installation process is time-consuming and labor-consuming are solved.

As shown in fig. 1, 6 and 7, the diameter of the first elongated member 401 is the same as that of the telescopic hole a204, and the diameter of the second elongated member 402 is the same as that of the telescopic hole b 404.

The sliding blocks 409 at the top of the second extending member 402 are held and rotated for a half turn counterclockwise, the sliding blocks b412 at two sides of the rotating block b407 at the bottom of the second extending member 402 are rotated to the sliding groove b405 along the rotating groove b406 at the bottom of the bearing groove b403, then the half turn counterclockwise is performed, the sliding blocks b412 abut against the inner wall of the sliding groove b405 to drive the first extending member 402 to rotate counterclockwise, the sliding blocks a408 at two sides of the rotating block a407 at the bottom of the first extending member 402 rotate to the sliding groove a205 along the rotating groove a206 at the bottom of the bearing groove a203, then the sliding blocks 409 are held and lifted upwards, the first extending member 401 slides upwards in the bearing groove a203 through the cooperation of the sliding blocks a408 and the sliding groove a205, the second extending member 402 slides upwards in the bearing groove b205 through the cooperation of the sliding blocks b412 and the sliding groove b405, and after the first extending member 401 slides upwards, the sliding blocks 409 are held and rotated for a turn clockwise to limit the first extending member 401 along the rotating groove a206 at the top of the bearing groove a206, then the sliding block 409 is held to rotate anticlockwise for a half circle to enable the second extending piece 402 to slide downwards along the sliding groove b405 through the sliding block b412, after the sliding block b412 enters the rotating groove b406, the sliding block 409 is held to rotate clockwise for a half circle to enable the second extending piece 402 to reset and limit, then the connecting piece 202 is inserted into the connecting groove 102 to complete the connection between the cutter head assembly 2 and the screw body 1, and when the length of the connecting piece 202 needs to be further extended, only the second extending piece 402 is not reset.

Example two

As shown in fig. 6 and 7, in which the same or corresponding components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of difference from the first embodiment will be described below for the sake of convenience; the second embodiment is different from the first embodiment in that: the sliding block 409 is provided with an insertion hole b410, the sliding block 409 arranged at the top of the second extension piece 402 is provided with the insertion hole b410, the diameter of the insertion hole b410 is the same as that of the connecting rod 202, the insertion hole b410 is matched with the connecting rod 202, and one part of the connecting rod 202 is inserted into the insertion hole 410b to enable the second extension piece 402 to be fastened with the first sealing piece 301, so that the problem that the adjusting component 4 is loosened in the screw installation process is solved.

In the description of the present invention, it is to be understood that the terms "front-back", "left-right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or component must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the invention.

Of course, in this disclosure, those skilled in the art will understand that the terms "a" and "an" should be interpreted as "at least one" or "one or more," i.e., in one embodiment, a single element may be present in a number, while in other embodiments, the number of the elements may be present in a plurality, and the terms "a" and "an" should not be interpreted as limiting the number.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art based on the technical teaching of the present invention should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. An adjustable self-tapping screw, includes screw main part (1), its characterized in that: the bottom of the screw main body (1) is connected with a tool bit assembly (2), a sealing assembly (3) is connected in the screw main body (1), a mounting groove (101) and a connecting groove (102) are formed in the screw main body (1), the tool bit assembly (2) comprises a tool bit main body (201) and a connecting piece (202) arranged at the top end of the tool bit main body (201), the tool bit main body (201) is inserted in the connecting groove (102) through the connecting piece (202), the tool bit assembly (2) is used for being matched with the screw main body (1) to drill into an object, the sealing assembly (3) comprises a first sealing piece (301) and a second sealing piece (302), the second sealing piece (302) drives the first sealing piece (301) to ascend along the mounting groove (101) to seal the mounting groove (101) while sealing the connecting groove (102), and an adjusting assembly (4) is further connected in the tool bit assembly (2), the adjusting component (4) is used for adjusting the whole length of the connecting piece (202).

2. An adjustable self-tapping screw according to claim 1, wherein a through hole (103) communicating the mounting groove (101) and the connecting groove (102) is formed in the screw body (1).

3. The adjustable self-tapping screw as claimed in claim 1, wherein the connecting member (202) has a bearing groove a (203) formed therein, the top end of the connecting member (202) has a retractable hole a (204), the inner wall of the bearing groove a (203) has a sliding groove a (205) formed therein, and the top and bottom of the bearing groove a (203) have rotating grooves a (206) having the same size.

4. An adjustable self-tapping screw as claimed in claim 1, wherein a connecting rod (303) is provided at the bottom of the first sealing member (301), the first sealing member (301) is cross-shaped in shape to fit the mounting groove (101), and the thickness of the first sealing member (301) is half of the depth of the mounting groove (101).

5. An adjustable self-tapping screw as claimed in claim 4, wherein the diameter of said connecting rod (303) is the same as the diameter of the through hole (103), and the length of said connecting rod (303) is greater than the depth of the through hole (103).

6. The adjustable self-tapping screw as claimed in claim 4, wherein an insertion hole a (304) is formed in the second sealing element (302), a pressing block (305) is arranged at the bottom of the second sealing element (302), the size of the second sealing element (302) is the same as that of the connecting groove (102), and the diameter of the insertion hole a (304) is the same as that of the connecting rod (303).

7. The adjustable self-tapping screw as claimed in claim 1, wherein the adjusting assembly (4) comprises a first extending member (401) and a second extending member (402) slidably disposed in the first extending member (401), a bearing groove b (403) is formed in the first extending member (401), a telescopic hole b (404) is formed at the top end of the first extending member (401), a sliding groove b (405) is formed in the inner wall of the bearing groove b (403), and rotating grooves b (406) with the same size are formed at the top and the bottom of the bearing groove b (403).

8. An adjustable self-tapping screw as claimed in claim 7, wherein a rotating block a (407) is arranged at the bottom of the first extension piece (401), sliding blocks a (408) are symmetrically arranged at two sides of the rotating block a (407), and the sliding blocks a (408) are in sliding fit with sliding grooves a (205) formed in the inner wall of the bearing groove a (203).

9. An adjustable self-tapping screw as claimed in claim 7, wherein a sliding block (409) is arranged at the top of the second extending member (402), a socket b (410) is formed in the sliding block (409), a rotating block b (411) is arranged at the bottom of the second extending member (402), sliding blocks b (412) are symmetrically arranged on two sides of the rotating block b (411), the sliding blocks b (412) are in sliding fit with sliding grooves b (405) formed in the inner wall of the bearing groove b (403), and the diameter of the socket b (410) is the same as that of the connecting rod (303).

10. An adjustable self-tapping screw as claimed in claim 7, wherein said first elongated member (401) has the same diameter as the diameter of the telescopic bore a (204), and said second elongated member (402) has the same diameter as the diameter of the telescopic bore b (404).