CN213744355U - High-strength and high-stability three-in-one connecting rod - Google Patents
High-strength and high-stability three-in-one connecting rod Download PDFInfo
- Publication number
- CN213744355U CN213744355U CN202022898260.9U CN202022898260U CN213744355U CN 213744355 U CN213744355 U CN 213744355U CN 202022898260 U CN202022898260 U CN 202022898260U CN 213744355 U CN213744355 U CN 213744355U
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- screw rod
- rod
- threaded hole
- nut
- connecting rod
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Abstract
The utility model provides a trinity connecting rod of high strength high stability, its includes the screw rod to and the nut. The screw rod comprises a threaded connection end, a resisting part, a friction rod, a connecting rod and a screw rod head which are arranged in sequence. The friction lever includes a friction lever main body, and a friction protrusion. The nut comprises a nut body, a limiting boss, a threaded hole and a groove. The diameter of the threaded hole close to one end of the screw rod is gradually reduced to the diameter of the threaded hole far away from one end of the screw rod. When the threaded connecting end of the screw rod is screwed into the threaded hole of the nut, the diameter of one end, close to the screw rod, of the threaded hole is equal to the diameter of one end, far away from the screw rod, of the threaded hole. Thereby the nut body is kept away from screw rod one end and is opened towards the direction of keeping away from the nut body center pin, and then makes the nut fixed. Therefore, the three-in-one connecting rod with high strength and stability is simple in structure, convenient to install and not easy to loosen.
Description
Technical Field
The utility model relates to a connecting device technical field, in particular to trinity connecting rod of high strength high stability.
Background
The three-in-one connecting piece is also called a fastener or a combiner, consists of an eccentric wheel, a connecting rod and an embedded nut, and is mainly used for connecting pieces of plate-type furniture.
At frequent dismouting in-process, embedded nut can become flexible and make embedded nut break away from the screw hole, and then makes the intensity that trinity connecting piece connects inadequately, and stable inadequately.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a trinity connecting rod of high strength high stability to satisfy above-mentioned demand.
The utility model provides a trinity connecting rod of high strength high stability, its includes a screw rod, and a setting is in the nut of screw rod one end. The screw rod comprises a threaded connection end, a resisting part, a friction rod, a connecting rod and a screw rod head which are arranged in sequence. And the outer side wall of the threaded connecting end is provided with threads. The friction rod comprises a friction rod body and a plurality of friction protrusions arranged on the outer side wall of the friction rod body. The nut comprises a nut body, a plurality of limiting bosses arranged on the outer side wall of the nut body at intervals, a threaded hole arranged in the axial direction of the nut body, and two grooves symmetrically arranged on the side wall of the nut body and far away from one end head of the screw rod. The groove is communicated with the threaded hole. The groove is axially arranged along the nut body. On the section along the central shaft of the nut, the outer contour of each limiting boss is conical. The threaded hole is in threaded connection with the threaded connecting end. The diameter of the threaded hole close to one end of the screw rod is gradually reduced to the diameter of the threaded hole far away from one end of the screw rod. When the threaded connecting end of the screw rod is screwed into the threaded hole of the nut, the diameter of one end, close to the screw rod, of the threaded hole is equal to the diameter of one end, far away from the screw rod, of the threaded hole.
Further, the diameter of the resisting part is larger than that of the threaded connecting end.
Furthermore, the friction protrusions are triangular pyramid-shaped.
Further, the diameter of the screw head is larger than that of the connecting rod.
Furthermore, the joint of the screw head and the connecting rod is a smooth curved surface.
Furthermore, the threaded connection end, the resisting part, the friction rod, the connecting rod and the screw head are of an integrally formed structure.
Further, the diameter of the threaded hole close to one end of the screw rod is equal to the diameter of the threaded connecting end.
Further, the length of the threaded hole is greater than the length of the threaded connection end.
Further, the groove opens in a direction away from the screw.
Compared with the prior art, the utility model provides a trinity connecting rod of high strength high stability includes a screw rod, and a setting is in the nut of screw rod one end. The screw rod is provided with a threaded connection end, and threads are arranged on the outer side wall of the threaded connection end. The nut comprises a nut body, a plurality of limiting bosses arranged on the outer side wall of the nut body at intervals, a threaded hole arranged in the axial direction of the nut body, and two grooves symmetrically arranged on the side wall of the nut body and far away from one end head of the screw rod. The groove is communicated with the threaded hole. The groove is axially arranged along the nut body. On the section along the central shaft of the nut, the outer contour of each limiting boss is conical. The threaded hole is in threaded connection with the connecting end, and the diameter of the threaded hole close to one end of the screw rod is gradually reduced to the diameter of the threaded hole far away from one end of the screw rod. After the screw rod is screwed into the nut, the diameter of one end, close to the screw rod, of the threaded hole is equal to the diameter of one end, far away from the screw rod, of the threaded hole. Thereby the nut body is kept away from screw rod one end and is opened towards the direction of keeping away from the nut body center pin, and then makes the nut fixed. Therefore, the three-in-one connecting rod with high strength and stability is simple in structure, high in stability and not easy to loosen.
Drawings
Figure 1 is the utility model provides a pair of high strength high stability's trinity connecting rod's structural schematic.
Fig. 2 is a schematic sectional view of a nut in the high-strength high-stability three-in-one connecting rod of fig. 1.
Detailed Description
Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
As shown in fig. 1 to fig. 2, it is the structure diagram of the three-in-one connecting rod with high strength and high stability provided by the present invention. High strength high stability's trinity connecting rod includes a screw rod 10, and a setting is in the nut 20 of screw rod 10 one end. It is contemplated that the high-strength and high-stability three-in-one connecting rod further includes functional modules, such as an eccentric member, etc., which are well known to those skilled in the art and will not be described herein.
The screw 10 comprises a threaded connection end 11, a resisting part 12, a friction rod 13, a connecting rod 14 and a screw head 15 which are arranged in sequence.
The outer side wall of the threaded end 11 is provided with threads, and is in threaded connection with the nut 20, which will be described in detail in connection with the nut 20.
The diameter of the stopping portion 12 is larger than that of the threaded connection end 11, so that after the threaded connection end 11 is connected with the nut 20, the stopping portion 12 stops the nut 20, and the position of the nut 20 is limited.
The friction lever 13 includes a friction lever body 131, and a plurality of friction protrusions 132 provided on an outer side wall of the friction lever body 131. Each of the friction protrusions 132 has a triangular pyramid shape, so that the friction force between the friction lever body 131 and the finger is increased. When the screw 10 is installed, a finger presses the friction protrusion 132 of the friction lever main body 131 to rotate, so that the screw 10 is easily screwed into the nut 20, and the screw 10 is fixedly connected with the nut 20.
The diameter of the connecting rod 14 is smaller than that of the friction rod 13, so that the friction rod 13 is not inserted into the eccentric member (not shown) after the fixing member 14 is inserted into the opening of the eccentric member.
The diameter of the screw head 15 is larger than that of the connecting rod 14, so that the screw head 15 cannot be easily pulled out of the opening of the eccentric member, and the screw 10 cannot be pulled out of the eccentric member. The joint of the screw head 15 and the connecting rod 14 is a smooth curved surface, when the eccentric member rotates and blocks the screw rod 10, the friction between the eccentric member and the screw rod 10 is reduced, and thus the eccentric member rotates more easily.
The threaded connecting end 11, the resisting part 12, the friction rod 13, the connecting rod 14 and the screw head 15 are integrally formed, so that the screw 10 is firmer and is not easy to break.
The nut 20 comprises a nut body 21, a plurality of limiting bosses 22 arranged on the outer side wall of the nut body 21 at intervals, a threaded hole 23 arranged in the axial direction of the nut body 21, and two grooves 24 symmetrically arranged on the side wall of the nut body 21 and far away from one end of the screw rod 10.
The outer contour of each of the limiting bosses 22 is tapered, the nut 20 is formed by stacking a plurality of the limiting bosses 22, and it is conceivable that the outer contour of the nut 20 is in a pagoda structure, so that the friction force of the nut 20 is increased, the nut 20 can more easily grasp the inner wall of a mounting hole (not shown), and the nut 20 is less likely to fall off from the mounting hole.
The threaded hole 23 is a threaded through hole, and the threaded hole 23 is in threaded connection with the threaded connecting end 11. The diameter of the threaded hole 23 near one end of the screw 10 is equal to the diameter of the threaded end 11, so that the threaded end 11 can be inserted through the threaded hole 23 near one end of the screw 10. The length of the threaded hole 23 is greater than that of the threaded connection end 11, so that the threaded connection end 11 does not protrude out of the nut 20 after being connected. The diameter of the threaded hole 23 close to one end of the screw rod 10 is gradually reduced to the diameter of the threaded hole 23 far away from one end of the screw rod 10. When the threaded end 11 of the screw rod 10 is screwed into the threaded hole of the nut 20, the diameter of the end of the threaded hole 23 close to the screw rod 10 is equal to the diameter of the end of the threaded hole 23 far from the screw rod 10, so that the end of the nut body 21 far from the screw rod 10 is opened towards the direction far from the central axis of the nut body 21, the nut body 21 and the mounting hole are tightly connected, and the nut 20 is stably fixed in the mounting hole.
The groove 24 is communicated with the threaded hole 23, and the groove 24 is axially arranged along the nut body 21. The groove 24 opens in a direction away from the screw 10 so that the end of the nut body 21 remote from the end of the screw 10 is divided into two parts. When the screw rod 10 is screwed into the threaded hole 23, the end of the nut body 21 away from the screw rod 10 is more easily expanded to grip the inner wall of the mounting hole (not shown), so that the nut 20 is more stably mounted in the mounting hole.
Compared with the prior art, the utility model provides a trinity connecting rod of high strength high stability includes a screw rod 10, and a setting is in the nut 20 of screw rod 10 one end. The screw rod 10 is provided with a threaded connection end 11, and threads are arranged on the outer side wall of the threaded connection end 11. The nut 20 comprises a nut body 21, a plurality of limiting bosses 22 arranged on the outer side wall of the nut body 21 at intervals, a threaded hole 23 arranged in the axial direction of the nut body 21, and two grooves 24 symmetrically arranged on the side wall of the nut body 21 and far away from one end of the screw rod 10. The groove 24 communicates with the threaded hole 23. The groove 24 is axially disposed along the nut body 21. In a cross section along the central axis of the nut 20, the outer contour of each of the limit bosses 22 is tapered. The threaded hole 23 is connected with the connecting end thread 11, and the diameter of the threaded hole 23 close to one end of the screw rod 10 is gradually reduced to the diameter of the threaded hole 23 far away from one end of the screw rod 10. After the screw 10 is screwed into the nut 20, the diameter of the threaded hole 23 near one end of the screw 10 is equal to the diameter of the threaded hole 23 far away from one end of the screw 10. So that the end of the nut body 21 away from the screw 10 is opened in a direction away from the central axis of the nut body 21, thereby fixing the nut 20. Therefore, the three-in-one connecting rod with high strength and stability is simple in structure, high in stability and not easy to loosen.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (9)
1. The utility model provides a trinity connecting rod of high strength high stability which characterized in that: the three-in-one connecting rod with high strength and high stability comprises a screw rod and a nut arranged at one end of the screw rod, the screw rod comprises a threaded connecting end, a resisting part, a friction rod, a connecting rod and a screw rod head which are sequentially arranged, the outer side wall of the threaded connecting end is provided with threads, the friction rod comprises a friction rod main body and a plurality of friction bulges arranged on the outer side wall of the friction rod main body, the nut comprises a nut body, a plurality of spacing bosses are arranged on the outer side wall of the nut body at intervals, a threaded hole is arranged in the axial direction of the nut body, and two grooves which are symmetrically arranged on the side wall of the nut body and are far away from one end head of the screw rod are arranged, the grooves are communicated with the threaded hole, the grooves are arranged along the axial direction of the nut body on the cross section along the central axis of the nut, the outer contour of each limiting boss is conical, the threaded hole is in threaded connection with the threaded connecting end, the diameter of the threaded hole close to one end of the screw rod is gradually reduced to the diameter of the threaded hole far away from one end of the screw rod, and when the threaded connecting end of the screw rod is screwed into the threaded hole of the nut, the diameter of the threaded hole close to one end of the screw rod is equal to the diameter of the threaded hole far away from one end of the screw rod.
2. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the diameter of the resisting part is larger than that of the threaded connecting end.
3. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the friction bulges are all triangular pyramid-shaped.
4. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the diameter of the screw head is larger than that of the connecting rod.
5. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the joint of the screw head and the connecting rod is a smooth curved surface.
6. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the threaded connection end, the resisting part, the friction rod, the connecting rod and the screw head are of an integrally formed structure.
7. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the diameter of the threaded hole close to one end of the screw rod is equal to that of the threaded connecting end.
8. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the length of the threaded hole is greater than that of the threaded connecting end.
9. The three-in-one connecting rod with high strength and high stability as claimed in claim 1, wherein: the groove opening faces away from the screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022898260.9U CN213744355U (en) | 2020-12-04 | 2020-12-04 | High-strength and high-stability three-in-one connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022898260.9U CN213744355U (en) | 2020-12-04 | 2020-12-04 | High-strength and high-stability three-in-one connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213744355U true CN213744355U (en) | 2021-07-20 |
Family
ID=76833912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022898260.9U Expired - Fee Related CN213744355U (en) | 2020-12-04 | 2020-12-04 | High-strength and high-stability three-in-one connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213744355U (en) |
-
2020
- 2020-12-04 CN CN202022898260.9U patent/CN213744355U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210720 Termination date: 20211204 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |