CN220396206U - Concealed bolt and nut connecting piece - Google Patents
Concealed bolt and nut connecting piece Download PDFInfo
- Publication number
- CN220396206U CN220396206U CN202322083664.6U CN202322083664U CN220396206U CN 220396206 U CN220396206 U CN 220396206U CN 202322083664 U CN202322083664 U CN 202322083664U CN 220396206 U CN220396206 U CN 220396206U
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- nut
- threaded
- screw
- connecting portion
- bolt
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 description 10
- 238000010168 coupling process Methods 0.000 description 10
- 238000005859 coupling reaction Methods 0.000 description 10
- 210000002615 epidermis Anatomy 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Abstract
The utility model relates to a fastener, and discloses a hidden bolt-nut connector, which comprises: the first connecting sleeve is provided with external threads on the outer wall, the first end of the first connecting sleeve is opened, a baffle plate with a first penetrating hole is integrally and fixedly arranged on the inner wall close to the second end, and the second end is a first connecting part at the part of the baffle plate far away from the first end; the middle position of the screw is fixedly connected with a ring magnet which is connected with the first connecting sleeve in a sliding manner and can rotate; the two ends of the screw rod are respectively provided with a first thread part and a second thread part, and the thread parameters of the first thread part and the second thread part are the same; the connecting cap is in threaded connection with the first end of the first connecting sleeve, the third end of the connecting cap is provided with a first threaded hole, and the fourth end of the connecting cap is provided with a second connecting part; the first threaded portion also remains threadably connected to the first threaded bore when the second threaded portion is fully threaded out of the first threaded bore; the nut, the nut outer wall is provided with the external screw thread, and its fifth end is provided with second screw hole, third connecting portion.
Description
Technical Field
The utility model relates to a fastener, in particular to a hidden bolt-nut connector.
Background
Bolt and nut are commonly used to fixedly connect two components together. For example, when some wooden pieces are connected, a through hole for matching a bolt can be formed in one wooden piece, and a pre-buried hole for matching a nut is formed in the other wooden piece (the outer wall of the nut can be provided with external threads, so that a self-tapping effect is achieved).
After such connection, the disadvantage is that the bolts are exposed and not beautiful. Thus, when the bolt and nut are used for wooden furniture, some remedial measures are taken, such as: 1. the bolts are matched to form step through holes, nuts of the bolts are completely positioned in the step through holes, a section of timber is inserted into the step through holes to shield the bolts, and finally the polishing surface is trimmed; 2. before the through holes of the matched bolts are formed, the epidermis at the corresponding positions of the wooden piece is shoveled, the step through holes are formed, nuts of the bolts are completely positioned in the step through holes, the shoveled epidermis is adhered and covered back, and finally the polishing surface is trimmed.
However, both the above-mentioned remedies are complicated to operate, and leave a mark on the surface, which to some extent also affects the aesthetic appearance.
Disclosure of Invention
The application provides a hidden bolt nut connecting piece, can solve current bolt nut and be used for when wooden furniture preparation, influence pleasing to the eye problem.
In this application, provide a hidden bolt nut connecting piece, include: the first connecting sleeve is provided with external threads on the outer wall, the first end of the first connecting sleeve is opened, a baffle plate with a first penetrating hole is integrally and fixedly arranged on the inner wall close to the second end, and the second end of the first connecting sleeve is provided with a first connecting part at the part of the baffle plate far away from the first end; the middle position of the screw is fixedly connected with a radial magnetized annular magnet, and the annular magnet is connected with the first connecting sleeve in a sliding manner along the axis of the first connecting sleeve and can rotate relative to the first connecting sleeve; the two ends of the screw rod are respectively provided with a first thread part facing the first end and a second thread part facing the second end, and the thread parameters of the first thread part and the second thread part are the same; the connecting cap is in threaded connection with the first end of the first connecting sleeve, the third end of the connecting cap is provided with a first threaded hole matched with the first threaded part, and the fourth end of the connecting cap is provided with a second connecting part; the first threaded portion also remains threadably connected to the first threaded bore when the second threaded portion is fully threaded out of the first threaded bore; the outer wall of the nut is provided with external threads, and the fifth end of the nut is provided with a second threaded hole matched with the second threaded part and a third connecting part.
In one embodiment, the first connecting portion and the third connecting portion are both annular, and an outer diameter of the third connecting portion is equal to an inner diameter of the first connecting portion.
In one embodiment, the first connection portion and the third connection portion are respectively and uniformly provided with the first notches and the third notches with the same number; the thicknesses of the first connecting part and the third connecting part are the same, and the thicknesses of the first notch and the third notch are the same and are equal to the thicknesses of the first connecting part and the third connecting part.
In one embodiment, the second connecting portion is also annular, and second notches having the same number as the first notches and the third notches are uniformly provided.
In one embodiment, the first threaded hole and the second threaded hole are through holes, parameters of external threads of the connecting cap and the nut are the same, and the first connecting portion and the third connecting portion are the same.
In one embodiment, a supporting block is integrally fixed in the middle of the screw, the ring magnet is sleeved on the screw and supports against the supporting block, and the first threaded portion is further connected with a first nut in a threaded manner and used for matching with the supporting block to fix the ring magnet.
In one embodiment, the side surface of the supporting block, which is close to the annular magnet, is uniformly provided with a plurality of protruding strips, and the annular magnet is correspondingly provided with a plurality of matched limiting grooves.
To sum up, in this application, a hidden bolt nut connecting piece, with bolt portion, nut all imbed wooden spare, drive the screw rod in the bolt portion through magnetic force and rotate, cooperate the nut, do not leave the trace in the outward appearance, can also accomplish the dismantlement. Compared with the prior bolt and nut, the novel bolt and nut has the beneficial effects of convenient operation and attractive appearance.
Drawings
In order to better and clearly describe the technical solutions in the embodiments or the background of the present application, the following description will describe the drawings used in the embodiments or the background of the present application.
FIG. 1 is an exploded view of the present utility;
FIG. 2 is a side view and a cross-sectional view of the present utility model in the state of the drawing;
FIG. 3 is a schematic view of a connection block mated with three connection portions;
FIG. 4 is a schematic view of a connecting block engaging a bolt portion to connect it to a first wooden piece;
FIG. 5 is a schematic view of a connection block mated with a nut to connect it to a second wooden piece;
FIG. 6 is a schematic view of the first wooden piece and the second wooden piece assembled;
FIG. 7 is a schematic diagram of a magnet block mated with a ring magnet;
fig. 8 is a schematic view of the connection of the first wooden piece and the second wooden piece through the present utility model.
In the figure, 1, a first connecting sleeve; 11. a first end; 12. a second end; 13. a first connection portion; 131. a first notch; 14. a first inner wall; 15. a second inner wall; 16. a baffle; 2. a screw; 21. a first threaded portion; 22. a second threaded portion; 23. a supporting block; 231. a protruding strip; 3. a connecting cap; 31. a third end; 32. a fourth end; 33. a first threaded hole; 34. a second connecting portion; 341. a second notch; 4. a screw cap; 41. a fifth end; 42. a second threaded hole; 43. a third connecting portion; 431. a third notch; 5. a first wooden piece; 6. a second wooden piece; 7. a ring magnet; 71. a limit groove; 8. a first nut; 9. a magnetic block; 10. a connecting block; 101. cutting.
Detailed Description
Further description is provided below in connection with the accompanying drawings.
Referring to fig. 1, a hidden bolt-nut connector includes a first connecting sleeve 1, a screw 2, a connecting cap 3, and a nut 4.
Referring to fig. 1 and 2, the outer wall of the first connection sleeve 1 is provided with external threads for subsequent connection with the component to be connected. The first end 11 of the first connecting sleeve 1 is opened, and a baffle 16 with a first through hole is integrally and fixedly arranged on the inner wall close to the second end 12, namely, a space is reserved between the end face of the second end 12 and the baffle 16. The portion of the second end 12 at the portion of the flap 16 away from the first end 11 (the portion left between the end face of the second end 12 and the flap 16 described above) is the first connecting portion 13. The first connecting portion 13 is used for matching with the electric batch (the matched connecting block 10 is fixedly connected to the electric batch), so that the electric batch drives the first connecting sleeve 1 to rotate, and the first connecting sleeve is connected to the first wooden piece 5.
The middle position of the screw rod 2 is fixedly connected with a radial magnetized annular magnet 7, and two ends of the screw rod 2 are respectively provided with a first thread part 21 facing the first end 11 and a second thread part 22 facing the second end 12, and the thread parameters of the two parts are the same.
Referring to fig. 1, in one embodiment, the ring magnet 7 and the screw 2 are preferably arranged as follows: the middle position of the screw rod 2 is integrally and fixedly provided with a supporting block 23, and the annular magnet 7 is sleeved on the screw rod 2 from the first thread part 21 and supports against the supporting block 23; the first threaded portion 21 is further screwed with a first nut 8, the first nut 8 is screwed down, the first nut is fitted against the block 23, the ring magnet 7 is pressed, and the ring magnet 7 is fixed by friction. Further, a plurality of protruding strips 231 are uniformly arranged on the side surface, close to the annular magnet 7, of the supporting block 23, and a plurality of matched limiting grooves 71 are correspondingly arranged on the annular magnet 7. In this way, the protrusion 231 and the limit groove 71 are matched to further limit the rotation of the ring magnet 7 relative to the screw 2, so that the ring magnet and the limit groove are more stable.
The outer edges of the first nut 8 and the abutting block 23 are located within the outer edge of the ring magnet 7, so that the ring magnet 7 and the screw 2 can be inserted into the first connecting sleeve 1 together from the first end 11. The ring magnet 7 is slidably connected to the first coupling sleeve 1 along the axis of the first coupling sleeve 1 and is rotatable with respect to the first coupling sleeve 1. I.e. the outer diameter of the ring magnet 7 is equal to the inner diameter of the first coupling sleeve 1.
Referring to fig. 1 and 2, the connecting cap 3 is screwed onto the first end 11 of the first connecting sleeve 1, that is, the inner wall of the connecting sleeve includes a first inner wall 14 and a second inner wall 15, the first inner wall 14 is close to the first end 11, and has a larger inner diameter, and is provided with a first internal thread matching with the connecting cap 3. Correspondingly, the ring magnet 7 is fitted with a second inner wall 15, and the above-mentioned "the outer diameter of the ring magnet 7 is equal to the inner diameter of the first connecting sleeve 1" is that the outer diameter of the ring magnet 7 is equal to the inner diameter of the second inner wall 15.
The third end 31 of the connection cap 3 is provided with a first threaded hole 33 for the first threaded portion 21 and the fourth end 32 thereof is provided with a second connection 34. The second connecting portion 34 is used for being matched with the first connecting portion 13 in a follow-up and electric batch mode, so that the electric batch drives the connecting cap 3 to rotate, and the connecting cap is connected to the first connecting sleeve 1. Thus, the ring magnet 7 is fixedly attached to the screw 2, the screw 2 is then attached to the coupling cap 3, and finally the coupling cap 3 is attached to the first coupling sleeve 1, forming the bolt portion of the entire fastener.
Referring to fig. 6 and 7, from the outside, the magnet 9 (consisting of a plurality of magnet ring arrays, with the magnetic poles at the ends being sequentially changed) is driven to rotate by an electric screwdriver, the magnetic field is changed, the annular magnet 7 is acted, the screw 2 is driven to rotate, the screw 2 can be screwed out of the connecting cap 3, and the second threaded portion 22 can be penetrated out of the first connecting sleeve 1 from the first penetrating hole of the baffle 16. The first threaded portion 21 also remains screwed to the first threaded hole 33 when the second threaded portion 22 is completely threaded out of the first through hole (against the block 23 or against the flap 16 by the ring magnet 7). In this way, the magnet 9 is rotated in the opposite direction, and the screw 2 is screwed into the coupling cap 3, and the second threaded portion 22 is retracted into the first coupling sleeve 1.
Referring to fig. 1 and 2, the outer wall of the nut 4 is provided with an external thread, and the fifth end 41 thereof is provided with a second threaded hole 42 for engaging the second threaded portion 22, and a third connecting portion 43. The third connecting portion 43 also acts as a reference to the first connecting portion 13 for subsequent and electrical batch engagement, causing the electrical batch to rotate the nut 4, connecting it to the second wooden piece 6.
Referring to fig. 1 and 6, in one embodiment, the first connection portion 13 and the third connection portion 43 are preferably configured as follows: both are annular in shape, and the outer diameter of the third connecting portion 43 is equal to the inner diameter of the first connecting portion 13. In this way, when the bolt portion and the nut 4 are respectively connected to the first wooden piece 5 and the second wooden piece 6, one of the first connecting portion 13 and the third connecting portion 43 is completely inserted into the wooden piece, and the other is left outside the wooden piece, and when the two are engaged, the second screw portion 22 is aligned with the second screw hole 42.
In one embodiment, in combination with the arrangement of the first connecting portion 13 and the third connecting portion 43, the arrangement of the first connecting portion 13 and the third connecting portion 43 is further as follows: the first connecting part 13 and the third connecting part 43 are uniformly provided with the first notch 131 and the third notch 431 which are the same in number, and the thicknesses of the first connecting part 13 and the third connecting part 43 are the same; the thicknesses of the first notch 131 and the third notch 431 are also the same, and equal to the thicknesses of the first connecting portion 13 and the third connecting portion 43.
Referring to fig. 3, in this way, for the connection block 10, a structure is adopted, that is, the same number of cutting bars 101 are uniformly fixed on the side surface of the connection block 10, so that the connection with the first connection portion 13 and the third connection portion 43 can be completed simultaneously.
Referring to fig. 4, 5 and 6, the thickness of the insert 101 is equal to the thicknesses of the first notch 131 and the third notch 431, and the outer edge of the connecting block 10 extends beyond the insert 101. When the bolt part is connected to the first wooden piece 5, a first hole is formed in the end face of the first wooden piece 5, the cutting 101 of the connecting block 10 is completely inserted into the first notch 131, the bolt part is screwed into the first hole until the part of the connecting block 10 beyond the cutting 101 abuts against the end face of the first wooden piece 5, and the first connecting part 13 just completely enters into the first wooden piece 5; when the nut 4 is connected to the second wooden piece 6, a second hole is formed in the end face of the second wooden piece 6, the cutting 101 of the connecting block 10 is completely inserted into the third notch 431, at this time, the outer side part of the cutting 101 exceeds the third notch 431, the nut 4 is screwed into the second hole until the part of the cutting 101 exceeding the third notch 431 abuts against the end face of the second wooden piece 6, and the third connecting part 43 is just completely reserved outside the second wooden piece 6; and finally, when the first wooden piece 5 and the second wooden piece 6 are attached, the third connecting part 43 is just completely inserted into the first connecting part 13 to finish positioning, and the distance between the third end 31 surface of the connecting cap 3 and the fifth end 41 surface of the screw cap 4 is determined to be an integral multiple of the screw pitch of the first threaded part 21 and the second threaded part 22, so that the screw rod 2 is conveniently connected to the screw cap 4 in a threaded manner while being conveniently kept in fit with the connecting cap 3, and the assembly of the first wooden piece 5 and the second wooden piece 6 is finished. Correspondingly, the disassembly of the first wooden piece 5 and the second wooden piece 6 can be completed by reverse rotation.
Referring to fig. 1, in an embodiment, in combination with the further arrangement of the first connecting portion 13 and the third connecting portion 43, the second connecting portion 34 is also annular, and the third notches 431 having the same number as the first notches 131 and the second notches 341 are uniformly arranged. Thus, the connection block 10 described above can also be fitted with the second connection portion 34.
In addition, it can be found that: the structure of the coupling cap 3 and the screw cap 4 is relatively similar. Therefore, the first screw hole 33 and the second screw hole 42 are both through holes, so that the structures of the connection cap 3 and the nut 4 are the same, that is, the parameters of the external screw threads of the two are the same, and the first connection portion 13 and the third connection portion 43 are the same. Therefore, the workpiece can be used as the connecting cap 3 and the nut 4 at the same time, so that the production and the processing are convenient, and the cost is reduced.
Claims (7)
1. A concealed bolt-and-nut connector comprising:
the first connecting sleeve (1) is provided with external threads on the outer wall, a first end (11) of the first connecting sleeve is opened, a baffle plate (16) with a first penetrating hole is integrally and fixedly arranged on the inner wall close to a second end (12), and the second end (12) is provided with a first connecting part (13) at the part of the baffle plate (16) far from the first end (11);
the screw rod (2), the middle position of the screw rod (2) is fixedly connected with a radial magnetized annular magnet (7), and the annular magnet (7) is connected to the first connecting sleeve (1) in a sliding manner along the axis of the first connecting sleeve (1) and can rotate relative to the first connecting sleeve (1); the two ends of the screw rod (2) are respectively provided with a first thread part (21) facing the first end (11) and a second thread part (22) facing the second end (12), and the thread parameters of the two parts are the same;
-a connection cap (3), said connection cap (3) being screwed to a first end (11) of said first connection sleeve (1), a third end (31) thereof being provided with a first threaded hole (33) cooperating with said first threaded portion (21), a fourth end (32) thereof being provided with a second connection (34); the first threaded portion (21) also remains threaded to the first threaded hole (33) when the second threaded portion (22) is completely threaded out of the first threaded hole;
the nut (4), the outer wall of nut (4) is provided with the external screw thread, and its fifth end (41) is provided with second screw hole (42), the third connecting portion (43) of cooperation second screw thread portion (22).
2. A hidden bolt and nut connector according to claim 1, characterized in that the first connecting portion (13) and the third connecting portion (43) are ring-shaped, and the outer diameter of the third connecting portion (43) is equal to the inner diameter of the first connecting portion (13).
3. A hidden bolt and nut connector according to claim 2, characterized in that the first connecting portion (13) and the third connecting portion (43) are uniformly provided with the same number of first notches (131) and third notches (431), respectively; the thicknesses of the first connecting part (13) and the third connecting part (43) are the same, and the thicknesses of the first notch (131) and the third notch (431) are the same and are equal to the thicknesses of the first connecting part (13) and the third connecting part (43).
4. A hidden bolt and nut connector according to claim 3, characterized in that the second connecting portion (34) is also ring-shaped, and is uniformly provided with the same number of second notches (341) as the first notches (131) and the third notches (431).
5. A concealed bolt and nut connector according to claim 1, characterized in that the first threaded hole (33) and the second threaded hole (42) are through holes, the parameters of the external threads of the connecting cap (3) and the nut (4) are the same, and the first connecting portion (13) and the third connecting portion (43) are the same.
6. A hidden bolt and nut connector according to claim 1, characterized in that a supporting block (23) is integrally fixed in the middle of the screw (2), the ring magnet (7) is sleeved on the screw (2) and supports against the supporting block (23), and the first threaded portion (21) is further connected with a first nut (8) in a threaded manner, and the first nut is used for matching with the supporting block (23) to fix the ring magnet (7).
7. A hidden bolt and nut connector according to claim 6, characterized in that the side of the supporting block (23) close to the ring magnet (7) is uniformly provided with a plurality of protruding strips (231), and the ring magnet (7) is correspondingly provided with a plurality of matched limit grooves (71).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322083664.6U CN220396206U (en) | 2023-08-03 | 2023-08-03 | Concealed bolt and nut connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322083664.6U CN220396206U (en) | 2023-08-03 | 2023-08-03 | Concealed bolt and nut connecting piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220396206U true CN220396206U (en) | 2024-01-26 |
Family
ID=89598922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322083664.6U Active CN220396206U (en) | 2023-08-03 | 2023-08-03 | Concealed bolt and nut connecting piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220396206U (en) |
-
2023
- 2023-08-03 CN CN202322083664.6U patent/CN220396206U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |