CN214404325U - Rotating swing arm connecting structure - Google Patents
Rotating swing arm connecting structure Download PDFInfo
- Publication number
- CN214404325U CN214404325U CN202120467484.6U CN202120467484U CN214404325U CN 214404325 U CN214404325 U CN 214404325U CN 202120467484 U CN202120467484 U CN 202120467484U CN 214404325 U CN214404325 U CN 214404325U
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- rotating shaft
- round platform
- transition round
- conical surface
- pivot
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Abstract
The utility model relates to the technical field of machinery, in particular to a rotary swing arm connecting structure, which improves the connecting strength between a wiper arm and a rotating shaft, reduces the stress fracture condition of a connecting arm head between a transition round platform and a conical hole, and improves the stability of the device; including the wiper arm, the linking arm head, the apparatus further comprises a rotating shaft, the external screw thread, the transition round platform, conical surface hole and nut, the one end and the linking arm head fixed connection of wiper arm, the overhead conical surface hole that is provided with of linking arm, be provided with the external screw thread on the circumference outer wall at the top of pivot, the top diameter of pivot is less than the bottom diameter of pivot, be provided with the transition round platform between pivot top and pivot bottom, be provided with the axle tooth on the transition round platform, shape between external screw thread and the transition round platform is the cylinder, and the transition round platform pastes tightly with conical surface hole, the top of pivot is passed the conical surface hole from the bottom and is stretched out to conical surface hole's top external world, nut suit cover is established on the external screw thread, and the bottom of nut pastes tightly with the linking arm head.
Description
Technical Field
The utility model relates to the technical field of machinery, especially, relate to a rotate swing arm connection structure.
Background
The rotating swing arm connecting structure is an auxiliary device for fixing the windshield wiper, and is widely used in the field of machinery; the existing rotating swing arm connecting structure comprises a wiper arm, a connecting arm head, a rotating shaft, external threads, a transition round table and a nut, wherein the connecting arm head is fixedly installed on the wiper arm, the transition round table is arranged in the middle of the rotating shaft, the external threads are arranged at the top of the rotating shaft, the nut is in threaded connection with the external threads and is tightly attached to the connecting arm head, and the transition round table is tightly attached to the connecting arm head; when the existing rotating swing arm connecting structure is used, a rotating shaft penetrates through a connecting arm head and limits the longitudinal position of the rotating shaft through a transition round platform, then a nut is sleeved on an external thread in a threaded manner and is tightly attached to the connecting arm head, and the relative positions of a wiper arm, the connecting arm head and the rotating shaft are fixed; the existing rotating swing arm connecting structure is found in use, in the using process, the fixing of the rotating shaft and the connecting arm head depends on the friction effect between the transition round table and the nut and the connecting arm head, the contact area between the transition round table and the connecting arm head is large, the fastening effect of the nut is required to be large, and the excessive stress between the transition round table and the connecting arm head easily causes the fracture of the connecting arm head.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an improve the joint strength of wiper arm and pivot, reduce the connecting arm head because of the condition of stress fracture between transition round platform and the conical surface hole, improve the rotation swing arm connection structure of device stability.
The utility model discloses a rotate swing arm connection structure, including the wiper arm, the linking arm head, the apparatus further comprises a rotating shaft, the external screw thread, the transition round platform, conical surface hole and nut, the one end and the linking arm head fixed connection of wiper arm, the overhead conical surface hole that is provided with of linking arm, be provided with the external screw thread on the circumference outer wall at the top of pivot, the top diameter of pivot is less than the bottom diameter of pivot, be provided with the transition round platform between pivot top and pivot bottom, be provided with the axle tooth on the transition round platform, shape between external screw thread and the transition round platform is the cylinder, and the transition round platform pastes tightly with conical surface hole, the top of pivot is passed conical surface hole and is stretched out to conical surface hole's top external world from the bottom, nut screw-cap establishes on the external screw thread, and the bottom of nut pastes tightly with the linking arm head.
The utility model discloses a rotate swing arm connection structure, the axle tooth on the transition round platform vertically sets up.
The utility model discloses a rotate swing arm connection structure, axle tooth circumference align to grid is on the circumference outer wall of transition round platform.
The utility model discloses a rotate swing arm connection structure, the top of pivot is provided with the chamfer.
Compared with the prior art, the beneficial effects of the utility model are that: through the inside that the axle tooth that rotates the nut and drive on the transition round platform pasted tightly to the conical surface hole, the cylinder between external screw thread and the transition round platform prevents the nut further rotation, avoids the connecting arm head to continue to attack the conical surface hole, reduces the transition round platform and arouses the connecting arm head condition of breaking to conical surface hole internal stress is too big, reduces the condition of connecting arm head damage, improves the joint strength of wiper arm and pivot, improves device stability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged schematic view of the spindle structure;
FIG. 3 is a schematic cross-sectional view of the internal structure of the connecting arm head of the structure before the transition round table is tapped into the conical hole;
FIG. 4 is a schematic cross-sectional view of the internal structure of the connecting arm head of the structure after the transition round table is tapped into the conical hole;
in the drawings, the reference numbers: 1. a wiper arm; 2. a connecting arm head; 3. a rotating shaft; 4. an external thread; 5. A transition round table; 6. a conical surface hole; 7. a nut; 8. and (6) chamfering.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in figures 1 to 4, the connecting structure of the rotary swing arm of the utility model comprises a wiper arm 1, a connecting arm head 2, a rotating shaft 3, an external thread 4, a transition round platform 5, a conical hole 6 and a nut 7, wherein one end of the wiper arm 1 is fixedly connected with the connecting arm head 2, the connecting arm head 2 is provided with the conical hole 6, the external thread 4 is arranged on the circumferential outer wall of the top of the rotating shaft 3, the diameter of the top of the rotating shaft 3 is smaller than the diameter of the bottom of the rotating shaft 3, a transition round table 5 is arranged between the top of the rotating shaft 3 and the bottom of the rotating shaft 3, shaft teeth are arranged on the transition round table 5, the shape between the external thread 4 and the transition round table 5 is a cylinder, the transition round table 5 is tightly attached to the conical surface hole 6, the top of the rotating shaft 3 penetrates through the conical surface hole 6 from the bottom end and extends out of the top end of the conical surface hole 6, the nut 7 is sleeved on the external thread 4 in a threaded mode, and the bottom end of the nut 7 is tightly attached to the connecting arm head 2; the nut is rotated to drive the shaft teeth on the transition round platforms to be tightly attached to the inner part of the conical hole, and the cylinder between the external thread and the transition round platforms prevents the nut from further rotating, so that the connecting arm head is prevented from continuously attacking the conical hole, the situation that the connecting arm head is broken due to overlarge stress of the transition round platforms to the inner part of the conical hole is reduced, the situation that the connecting arm head is damaged is reduced, the connecting strength of the wiper arm and the rotating shaft is improved, and the stability of the device is improved; in actual production, the outer diameter of the cylinder between the external thread and the transition circular truncated cone is larger than or equal to the outer diameter of the external thread, and the outer side wall of the cylinder between the external thread and the transition circular truncated cone is unthreaded.
In the connecting structure of the rotary swing arm of the utility model, the shaft teeth on the transition round platform 5 are longitudinally arranged; through the arrangement, the shaft teeth on the transition round platform can be conveniently attacked into the conical surface hole, the limiting teeth meshed with the shaft teeth can be conveniently formed in the conical surface hole when the shaft teeth are attacked into the conical surface hole, and the connection strength of the wiper arm and the rotating shaft is improved.
In the connecting structure of the rotary swing arm of the utility model, the shaft teeth are uniformly arranged on the outer wall of the circumference of the transition round platform 5; through the arrangement, the circumferential connection strength between the transition round platform and the conical hole is improved, and the situation that the connecting arm head is broken due to stress between the transition round platform and the conical hole is reduced through the deformation inside the conical hole after the transition round platform and the conical hole are tightly attached.
In the connecting structure of the rotary swing arm of the utility model, the top end of the rotary shaft 3 is provided with a chamfer 8; through the arrangement, the conical surface hole can be conveniently penetrated through the top end of the rotating shaft, the condition that the top end of the rotating shaft scratches the inside of the conical surface hole is reduced, and the practicability is improved.
The utility model discloses a rotate swing arm connection structure, it is at the during operation, swivel nut and the inside of driving the axle tooth on the transition round platform and pasting to the conical surface hole, reduce the slip condition between wiper arm and the pivot, and reduce the continuous stress of transition round platform to conical surface hole inside, reduce the condition of connecting arm head damage, improve the joint strength of wiper arm and pivot, improve the circumferential connection intensity between transition round platform and the conical surface hole, paste through the deformation of conical surface hole inside after tight in transition round platform and conical surface hole, reduce the connecting arm head because of the condition of stress fracture between transition round platform and the conical surface hole.
Compared with the prior art, the utility model discloses a rotate swing arm connection structure's very special technical characteristic does: the shape between the external thread 4 and the transition round table 5 is a cylinder; the cylinder between the external thread and the transition round platform prevents the nut from further rotating, avoids the connecting arm head from continuously attacking the conical surface hole, and reduces the fracture condition of the connecting arm head caused by overlarge stress of the transition round platform on the inner part of the conical surface hole.
The installation mode, the connection mode or the setting mode of the rotating swing arm connecting structure of the utility model are common mechanical modes, and the connecting structure can be implemented as long as the beneficial effects can be achieved; the utility model discloses a rotating swing arm connection structure for purchase on the market, this industry technical staff only need according to its subsidiary service instruction install and operate can.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A rotary swing arm connecting structure is characterized by comprising a wiper arm (1), a connecting arm head (2), a rotating shaft (3), external threads (4), a transition circular truncated cone (5), a conical hole (6) and a nut (7), wherein one end of the wiper arm (1) is fixedly connected with the connecting arm head (2), the connecting arm head (2) is provided with the conical hole (6), the external threads (4) are arranged on the circumferential outer wall of the top of the rotating shaft (3), the diameter of the top of the rotating shaft (3) is smaller than that of the bottom of the rotating shaft (3), the transition circular truncated cone (5) is arranged between the top of the rotating shaft (3) and the bottom of the rotating shaft (3), shaft teeth are arranged on the transition circular truncated cone (5), the shape between the external threads (4) and the transition circular truncated cone (5) is a cylinder, the transition circular truncated cone (5) is tightly attached to the conical hole (6), the top of the rotating shaft (3) penetrates through the conical hole (6) from the bottom and extends out of the top of the conical hole (6), the nut (7) is sleeved on the external thread (4) in a threaded manner, and the bottom end of the nut (7) is tightly attached to the connecting arm head (2).
2. A rotary swing arm connection according to claim 1, wherein the axial teeth on the transition round table (5) are arranged longitudinally.
3. A rotary swing arm joint structure according to claim 1, wherein the shaft teeth are circumferentially and uniformly arranged on the circumferential outer wall of the transition circular truncated cone (5).
4. A rotary swing arm connection according to claim 1, wherein the top end of the rotary shaft (3) is provided with a chamfer (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120467484.6U CN214404325U (en) | 2021-03-04 | 2021-03-04 | Rotating swing arm connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120467484.6U CN214404325U (en) | 2021-03-04 | 2021-03-04 | Rotating swing arm connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214404325U true CN214404325U (en) | 2021-10-15 |
Family
ID=78027292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120467484.6U Active CN214404325U (en) | 2021-03-04 | 2021-03-04 | Rotating swing arm connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214404325U (en) |
-
2021
- 2021-03-04 CN CN202120467484.6U patent/CN214404325U/en active Active
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