Gypsum board self-drilling expansion pipe
By setting a fastening part and drill teeth in the self-drilling expansion tube of gypsum board, the problem of insufficient strength and connection stability of gypsum board expansion tube is solved, and stable fixation and efficient drilling are achieved during the drilling process.
Patent Information
- Application Number
- CN202423173838.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing gypsum board expansion tubes are insufficient in terms of strength and connection stability, especially when subjected to high torque, they are prone to detachment.
A self-drilling expansion tube for gypsum board was designed, including a head, a tail, and a bent arm. The head and tail are provided with a fastening part and a receiving groove. The connection stability is improved by axial and perpendicular axial forces. Drill teeth are provided on the drill bit to reduce drilling difficulty. Claws are used to fix it to the gypsum board.
It improves the stability and strength of the gypsum board expansion tube, prevents it from coming loose due to excessive torque during drilling and insertion of self-drilling bolts, reduces drilling difficulty and friction, and ensures the fixing effect.
Smart Images
Figure CN223854605U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to hardware technical field, and specifically relates to a gypsum board self-drilling expansion pipe. BACKGROUND
[0002] Gypsum board is a common decoration material, and it is difficult to drill holes in the gypsum board and fix it due to the material itself, and a common method is to drill holes in the gypsum board and insert an expandable pipe. Common gypsum board expansion pipes can be divided into plastic and metal according to the manufacturing material, the former has low strength, and the latter is limited by the manufacturing process and cannot be integrally cast into shape, and needs to be produced in a sheet form and then bent, but the metal expansion pipe produced in this form has low strength at the connecting part, and the part may be separated under certain large torsion.
[0003] The information disclosed in this section is intended only to increase an understanding of the background of the present utility model and should not be construed as recognizing or implying that this information constitutes prior art that is already known to those skilled in the art. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a gypsum board self-drilling expansion pipe to solve the problem of its own strength.
[0005] In order to achieve the above-mentioned purpose, one embodiment of the utility model provides a gypsum board self-drilling expansion pipe, which comprises a head, a tail and a plurality of bending arms, the head comprises a first main body part and a first disc part connected to the first main body part and bendable, a first buckling part and a screw hole are arranged on the disc part, the first buckling part comprises a first abutting part and a second abutting part protruding on the first abutting part, a first accommodating groove matched with the first buckling part is arranged on the first main body part; the tail is provided with a through hole for inserting a self-drilling bolt, the through hole is coaxial with the screw hole; the two ends of the bending arm are connected with the head and the tail respectively, and the bending arm bends outward when the self-drilling bolt rotates and drives the head and the tail to approach each other.
[0006] In one or more embodiments of the utility model, the first abutting part is perpendicular to the second abutting part.
[0007] In one or more embodiments of the utility model, the tail comprises a second main body part and a second disc part connected to the second main body part, a second buckling part and a through hole are arranged on the second disc part, the second buckling part comprises a third abutting part and a fourth abutting part protruding on the third abutting part, and a second accommodating groove matched with the second buckling part is arranged on the second main body part.
[0008] In one or more embodiments of the utility model, the third abutting part is perpendicular to the fourth abutting part.
[0009] In one or more embodiments of the present utility model, the diameter of the first main body part is smaller than the diameter of the second main body part.
[0010] In one or more embodiments of the present utility model, a plurality of drill bits are arranged on the first disc part.
[0011] In one or more embodiments of the present utility model, the drill bits are evenly distributed on the first disc part.
[0012] In one or more embodiments of the present utility model, each drill bit comprises two drill teeth, one of which protrudes inward along the radial direction of the first main body part, and the other of which protrudes outward along the radial direction of the first main body part.
[0013] In one or more embodiments of the present utility model, a plurality of claws protruding towards the second main body part are arranged on the second disc part.
[0014] In one or more embodiments of the present utility model, the claws are evenly distributed on the second disc part.
[0015] Compared with the prior art, the expansion pipe of the present utility model is provided with a matched buckling part on the first main body part and the first disc part, the buckling part can provide a force in the axial direction and the direction perpendicular to the axial direction of the expansion pipe, so as to prevent the two parts from being separated due to excessive force in the two directions, and the stability is high. BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to more clearly illustrate the technical scheme in the embodiments of the present utility model or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the present utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.
[0017] Figure 1 It is a schematic diagram of the gypsum board self-drilling expansion pipe in an embodiment of the present utility model.
[0018] Figure 2 It is a schematic diagram of the gypsum board self-drilling expansion pipe in an embodiment of the present utility model.
[0019] Figure 3 It is a schematic diagram of the gypsum board self-drilling expansion pipe in an embodiment of the present utility model.
[0020] MAIN REFERENCE NUMERALS EXPLANATION:
[0021] 100-Expansion tube, 10-Head, 11-First main body, 12-First disc, 13-Screw hole, 14-First fastening part, 15-First receiving groove, 16-First abutting part, 17-Second abutting part, 18-Drill tooth, 20-Tail, 21-Second main body, 22-Second disc, 23-Second fastening part, 24-Second receiving groove, 25-Third abutting part, 26-Fourth abutting part, 27-Through hole, 28-Claw, 30-Bent arm. Detailed Implementation
[0022] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.
[0023] like Figures 1-3 As shown, in one embodiment of this utility model, the gypsum board self-drilling expansion tube 100 includes a head 10 and a tail 20, as well as multiple bent arms 30 connected between the head 10 and the tail 20. The head 10 is the part that drills into the gypsum board, and the tail 20 is the part that inserts the self-drilling bolt. The bent arms 30 bend outwards when not drilling into the gypsum board. The head 10 and the tail 20 are respectively provided with screw holes 13 and through holes 27 for the self-drilling bolt to be inserted. In use, after the gypsum board self-drilling expansion tube 100 is inserted into the gypsum board, the self-drilling bolt is rotated. Under the action of the thread, the head 10 moves closer to the tail 20, and the bent arms 30 unfold outwards and support themselves on the gypsum board. The gypsum board self-drilling expansion tube 100 is finally fixed to the gypsum board.
[0024] The gypsum board self-drilling expansion tube 100 is a metal product, and due to manufacturing limitations, it cannot be integrally cast. Therefore, during production... Figure 2 As shown, the entire piece is first laid flat for production, and then rolled into shape. Figure 1 The finished product shown. (As shown in the image) Figure 2 As shown, the head 10 includes a first main body 11 and a first disc 12. In the unfolded state, the first main body 11 is generally rectangular, and the connecting arm between it and the first disc 12 is relatively narrow. The first disc 12 has a screw hole 13. After the first main body 11 is rolled up until the two ends abut, the first disc 12 is flipped so that it is perpendicular to the cylindrical first main body 11.
[0025] To improve stability, the first disc part 12 is provided with a first clasp part 14, and the first main part 11 is correspondingly provided with a first accommodating groove 15. The first clasp part 14 includes a first abutting part 16 and a second abutting part 17 protruding from the first abutting part 16, and the first clasp part 14 and the first accommodating groove 15 are of the same shape. After the first disc part 12 is flipped, the first clasp part 14 is embedded into the first accommodating groove 15, at this time, the first clasp part 14 is simultaneously subjected to the force of the first accommodating groove 15 along the axial direction of the self-drilling expansion pipe 100 and the direction perpendicular to the axial direction, so that the first disc part 12 is connected with the first main part 11 firmly, the stability is improved, and the situation that the first disc part 12 and the first main part 11 are broken due to excessive torsion between the screw hole 13 and the self-drilling bolt when drilling into the gypsum board is prevented, and the situation that the first disc part 12 is flipped outward due to the lack of axial force during the drilling or the insertion of the self-drilling bolt is also prevented.
[0026] For example Figure 1 and 2 In the embodiment shown in the drawings, the first abutting part 16 and the second abutting part 17 are perpendicular, so that the first clasp part 14 as a whole has a right-angle structure. Two first clasp parts 14 are respectively arranged at both ends of the first main part 11, and the second abutting parts 17 of the two first clasp parts 14 face opposite directions. Correspondingly, two first accommodating grooves 15 are arranged on the first disc part 12. After the first disc part 12 is flipped, the two first clasp parts 15 are inserted into the respective corresponding first accommodating grooves 15, and when the first disc part 12 has a tendency to flip outward and rotate radially, it is blocked by the first clasp part 14 and the first accommodating groove 15, so that the first disc part 12 cannot be separated from the first main part 11 without being manually moved, and the stability is greatly improved.
[0027] In an embodiment, the tail part 20 has a similar design as the head part 10, that is, including a second main part 21 and a second disc part 22, and a through hole 27 is arranged on the second disc part 22, which is coaxial with the screw hole 13 after assembly. The second disc part 22 is provided with a second clasp part 23, and the second main part 21 is provided with a second accommodating groove 24, wherein the second clasp part 23 has the same structure as the first clasp part 14, including a third abutting part 25 and a fourth abutting part 26 protruding from the third abutting part 25, and the third abutting part 25 is perpendicular to the fourth abutting part 26.
[0028] After the second main body part 21 is curled during the assembly process, the second disc part 22 is folded, and the second buckle part 23 is embedded into the second accommodating groove 24. The tail part 20 is the insertion end of the self-drilling bolt and the tool operation end, and is the main torque bearing end. Therefore, the second buckle part 23 and the second accommodating groove 24 are matched to improve the stability, prevent the second disc part 22 and the second main body part 21 from being broken due to a large torque when drilling into the gypsum board, and prevent the second disc part 22 from being incorrectly turned when the self-drilling bolt is axially inserted and pulled out.
[0029] Preferably, the gypsum board self-drilling expansion pipe 100 is a self-drilling expansion pipe, that is, a plurality of drill bits are arranged on the first disc part 12, and the gypsum board self-drilling expansion pipe 100 can be drilled into the gypsum board without the aid of a self-drilling bolt or pre-punching on the gypsum board.
[0030] Preferably, the drill bits are uniformly distributed on the first disc part 12 to uniformly bear the force and improve the drilling effect.
[0031] In the embodiments shown in FIGS. 1 to 3, the drill bits are arranged on the first disc part 12 in a staggered manner. Figure 1 and 2 In the embodiments shown in FIGS. 1 to 3, each drill bit includes two drill teeth 18, one of which extends inwardly along the radial direction of the gypsum board self-drilling expansion pipe 100, and the other drill tooth 18 extends obliquely to the other side (outwardly along the radial direction of the gypsum board self-drilling expansion pipe 100). This arrangement increases the number of contact points between the gypsum board and the gypsum board self-drilling expansion pipe 100, reduces the difficulty of drilling, and the drill teeth 18 obliquely extending to the two sides expand the diameter of the drilled hole, reducing the friction between the first main body part 11 and the drilled hole.
[0032] Of course, for ease of use and operation, in actual use, the self-drilling bolt can also be inserted into the through hole 27 and screwed into the screw hole 13, and after the tail part abuts against the second disc part 22, the tip of the self-drilling bolt abuts against the gypsum board, the self-drilling bolt first drills a relatively small hole in the gypsum board, and then the drill teeth 18 abut against and start drilling in the gypsum board. Such an operation mode simultaneously drills holes by the self-drilling bolt and the gypsum board self-drilling expansion pipe 100, the drill teeth 18 bear less force and thus will not break or bend, and the stability is higher,
[0033] In an embodiment, a plurality of claws 28 are arranged on the second disc part 22 to be embedded in the gypsum board after drilling into the gypsum board, thereby fixing the second main body part 21 on the gypsum board to prevent the tail part 20 from rotating with the head part 10 when the self-drilling bolt is rotated to move the head part 10 toward the tail part 20 and expand the bent arm 30, thereby preventing the bent arm 30 from being smoothly expanded.
[0034] Preferably, the plurality of claws 28 are uniformly distributed on the second disc part 22 to uniformly bear the force of the second disc part 22, thereby further improving the stability and fixing effect.
[0035] In order to smoothly expand after drilling into the gypsum board, the bent arm 30 is in two-segment structure in the initial state, bent outward in the middle position, and has a certain angle between the two ends to ensure that it can be bent outward in the correct direction after drilling into the gypsum board. In an embodiment, the diameter of the first main body part 11 is smaller than the diameter of the second main body part 21 after being curled, so that the diameter of the gypsum board from the head part 10 to the tail part 20 gradually increases, which is arranged in such a way that the total diameter of the position where the bent arm 30 is bent in the middle is reduced under the premise of ensuring the bending angle of the bent arm 30, and the diameter of the hole drilled in the gypsum board is also reduced at the same time, so as to reduce the friction force on the first main body part 11 and the bent arm 30, and avoid the situation that the bent arm 30 expands prematurely before drilling to the other end of the gypsum board.
[0036] It is obvious to those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0037] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A self-drilling, expanding pipe for gypsum board, characterized in that The utility model relates to a self-drilling bolt head, tail and bending arm, comprising: a head comprising a first body portion and a first disc portion connected to the first body portion and bendable, the disc portion being provided with a first fastening portion and a screw hole, the first fastening portion comprising a first abutting portion and a second abutting portion protruding from the first abutting portion, the first body portion being provided with a first accommodating groove matched with the first fastening portion; a tail provided with a through hole for inserting a self-drilling bolt, the through hole being coaxial with the screw hole; a plurality of bending arms, the two ends of each bending arm being connected to the head and the tail respectively, the bending arms being bent outward when the self-drilling bolt rotates and drives the head and the tail to approach each other.
2. The gypsum board self-drilling expanding pipe according to claim 1, characterized in that, The first abutting portion is perpendicular to the second abutting portion.
3. The gypsum board self-drilling expanding pipe according to claim 2, characterized in that, The tail comprises a second body portion and a second disc portion connected to the second body portion, the second disc portion being provided with a second fastening portion and a through hole, the second fastening portion comprising a third abutting portion and a fourth abutting portion protruding from the third abutting portion, the second body portion being provided with a second accommodating groove matched with the second fastening portion.
4. The gypsum board self-drilling expanding pipe according to claim 3, characterized in that, The third abutting portion is perpendicular to the fourth abutting portion.
5. The gypsum board self-drilling expanding pipe according to claim 3, characterized in that, The diameter of the first body portion is smaller than the diameter of the second body portion.
6. The gypsum board self-drilling expanding pipe according to claim 1, characterized in that, The first disc portion is provided with a plurality of drill bits.
7. The gypsum board self-drilling expanding pipe according to claim 6, characterized in that, The drill bits are uniformly distributed on the first disc portion.
8. The gypsum board self-drilling expanding pipe according to claim 6, characterized in that, Each drill bit comprises two drill teeth, one of which protrudes inward along the radial direction of the first body portion, and the other of which protrudes outward along the radial direction of the first body portion.
9. The gypsum board self-drilling expanding pipe according to claim 3, characterized in that, The second disc portion is provided with a plurality of claws protruding toward the second body portion.
10. The gypsum board self-drilling expanding pipe according to claim 9, characterized in that, The claws are uniformly distributed on the second disc portion.