CN210398828U - A turn to elbow for dental lamp - Google Patents
A turn to elbow for dental lamp Download PDFInfo
- Publication number
- CN210398828U CN210398828U CN201921293694.7U CN201921293694U CN210398828U CN 210398828 U CN210398828 U CN 210398828U CN 201921293694 U CN201921293694 U CN 201921293694U CN 210398828 U CN210398828 U CN 210398828U
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- rotating shaft
- piece
- elbow
- limiting
- main body
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Abstract
The utility model discloses a steering elbow for a dental lamp, which comprises an elbow main body, a rotating shaft and a rotating shaft connecting piece, wherein the rotating shaft is connected to the elbow main body through the rotating shaft connecting piece; the rotating shaft connecting piece comprises a rotating shaft friction piece and a rotating shaft limiting piece, the rotating shaft friction piece is used for blocking the rotating shaft from rotating, the rotating shaft friction piece is arranged on the inward bending side of the elbow main body, and the rotating shaft limiting piece is arranged on the outward bending side of the elbow main body; the rotating shaft friction piece comprises an elastic piece limiting piece and an elastic piece arranged on the elastic piece limiting piece, and the elastic piece presses the elastic piece limiting piece to the rotating shaft so as to block the rotating shaft from rotating; the elastic piece limiting part and the rotating shaft limiting part are provided with protruding blocks used for being connected with the rotating shaft, the rotating shaft is provided with limiting grooves matched with the protruding blocks, and the protruding blocks are inserted into the limiting grooves to limit the rotating shaft to be separated from the elbow main body. Adopt the utility model discloses, easily equipment and can restrict the self-rotation of pivot steadily.
Description
Technical Field
The utility model relates to the technical field of medical machinery, especially, relate to a turn to elbow for dental lamp.
Background
In the dental medical lamp, the light of the lamp needs to be adjusted according to the actual use condition so that the light source irradiates the position to be illuminated of a patient, and the existing steering elbow of the lamp mainly maintains the posture of the oral lamp by the friction force generated by the tolerance fit of the rotating shaft and the base. Because the lamps and lanterns need rotate according to each patient's actual conditions and adjust, the rotary joint department of lamps and lanterns needs frequent rotation and takes place wearing and tearing to lead to unable the gesture of maintaining the mouth lamp, make the mouth lamp follow the flagging of the influence of gravity.
On the other hand, due to the above manner, the tolerance fit requirement for maintaining the posture of the oral lamp is high, which causes the adverse effects of high production cost, low yield and laborious assembly.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved of the utility model is to provide a turn to elbow, easily equipment with can restrict the rotation of pivot steadily.
In order to solve the technical problem, the utility model provides a steering elbow, which comprises an elbow main body, a rotating shaft and a rotating shaft connecting piece, wherein the rotating shaft is connected to the elbow main body through the rotating shaft connecting piece;
the rotating shaft connecting piece comprises a rotating shaft friction piece for blocking the rotating shaft from rotating and a rotating shaft limiting piece corresponding to the rotating shaft friction piece, the rotating shaft friction piece is arranged on the inner bending side of the elbow main body, and the rotating shaft limiting piece is arranged on the outer bending side of the elbow main body;
the rotating shaft friction piece comprises an elastic piece limiting piece and an elastic piece arranged on the elastic piece limiting piece, and the elastic piece presses the elastic piece limiting piece to the rotating shaft so as to block the rotating shaft from rotating;
the elastic piece limiting part and the rotating shaft limiting part are provided with protruding blocks used for being connected with the rotating shaft, the rotating shaft is provided with limiting grooves matched with the protruding blocks, and the protruding blocks are inserted into the limiting grooves to limit the rotating shaft to be separated from the elbow main body.
As an improvement of the above scheme, the elbow main body is provided with a spring plate groove for installing the spring plate limiting part and an opening for installing the rotating shaft limiting part, and the protruding block of the rotating shaft limiting part penetrates through the opening to be inserted into the limiting groove.
As an improvement of the scheme, a positioning ring used for abutting against the rotating shaft is arranged in the elbow main body, and the positioning ring limits the depth of the rotating shaft in the elbow main body so as to control the position of the limiting groove to correspond to the opening.
As an improvement of the above scheme, the elastic piece locating part is provided with an elastic piece mounting groove matched with the elastic piece, and a fixing column for fixing the elastic piece is arranged in the elastic piece mounting groove.
As an improvement of the scheme, the elastic sheet is provided with a fixing hole matched with the fixing column.
As an improvement of the above scheme, the rotating shaft comprises an upper rotating shaft and a lower rotating shaft, and the upper rotating shaft and the lower rotating shaft are respectively arranged at the upper end and the lower end of the elbow main body.
As an improvement of the scheme, the upper end surface of the elbow main body is provided with an arc-shaped groove used for limiting the rotating range of the upper rotating shaft.
As an improvement of the scheme, the upper rotating shaft is provided with a rotating limiting column matched with the arc-shaped groove, and the rotating limiting column moves in the arc-shaped groove.
As an improvement of the scheme, the lower rotating shaft is provided with a connecting disc used for an external connecting part, and the connecting disc is provided with a plurality of connecting holes.
As an improvement of the scheme, the upper rotating shaft, the lower rotating shaft and the elbow main body are of hollow structures, and the elbow main body is further provided with an external opening for external connection of a circuit.
Implement the utility model discloses, following beneficial effect has:
the utility model discloses a steering elbow, which comprises an elbow main body, a rotating shaft and a rotating shaft connecting piece, wherein the rotating shaft is connected to the elbow main body through the rotating shaft connecting piece;
the rotating shaft connecting piece comprises a rotating shaft friction piece and a rotating shaft limiting piece, the rotating shaft friction piece comprises an elastic piece limiting piece and an elastic piece, and the elastic piece presses the elastic piece limiting piece to the rotating shaft. Through setting up the shell fragment to increase the frictional force between shell fragment locating part and the pivot, thereby reach restriction pivot self-rotation's effect. Moreover, the abrasion between the elastic sheet limiting part and the rotating shaft has small influence on the friction force between the elastic sheet limiting part and the rotating shaft, so that the self-rotation of the rotating shaft can be stably limited for a long time.
Because the operating condition of turn to the elbow, generally for crooked downward setting, the pivot is after installing the oral cavity lamp additional, under the influence of gravity, the pivot can press to the side of incurving towards the elbow main part. Therefore, the rotating shaft friction piece is arranged on the inner bending side of the elbow main body, the maximum compression amount of the elastic sheet can be kept, and meanwhile, the maximum friction force exists between the elastic sheet limiting piece and the rotating shaft.
The elastic piece limiting part and the rotating shaft limiting part are provided with protruding blocks used for being connected with the rotating shaft, the rotating shaft is provided with limiting grooves matched with the protruding blocks, and the protruding blocks are inserted into the limiting grooves to limit the rotating shaft to be separated from the elbow main body. Compared with the existing interference fit connection mode, the rotating shaft is more easily installed in and is difficult to separate.
Drawings
FIG. 1 is a schematic structural view of a steering elbow of the present invention;
FIG. 2 is an exploded view of the steering elbow of the present invention;
fig. 3 is a schematic sectional view of the steering elbow of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, the utility model provides a steering elbow, which comprises an elbow main body 1, a rotating shaft 2 and a rotating shaft connecting piece, wherein the rotating shaft 2 is connected to the elbow main body 1 through the rotating shaft connecting piece;
the rotating shaft connecting piece comprises a rotating shaft friction piece 3 for blocking the rotating shaft from rotating and a rotating shaft limiting piece 4 corresponding to the rotating shaft friction piece 3, the rotating shaft friction piece 3 is arranged on the inward bending side of the elbow main body 1, and the rotating shaft limiting piece 4 is arranged on the outward bending side of the elbow main body 1;
the rotating shaft friction piece 3 comprises an elastic piece limiting piece 31 and an elastic piece 32 arranged on the elastic piece limiting piece 31, and the elastic piece 32 presses the elastic piece limiting piece 31 to the rotating shaft 2 so as to increase friction force to block the rotating shaft 2 from rotating;
the elastic piece limiting part 31 and the rotating shaft limiting part 4 are provided with a protruding block 5 used for being connected with the rotating shaft 2, the rotating shaft 2 is provided with a limiting groove 6 matched with the protruding block 5, and the protruding block 5 is inserted into the limiting groove 6 to limit the rotating shaft 2 to be separated from the elbow main body 1.
Specifically, the elbow main body 1 is provided with an elastic piece groove 11 for installing the elastic piece limiting part 31 and an opening 12 for installing the rotating shaft limiting part 4, the elastic piece limiting part 31 is provided with an elastic piece installation groove 311 matched with the elastic piece 32, a fixing column 312 for fixing the elastic piece 32 is arranged in the elastic piece installation groove 311, and the elastic piece 32 is provided with a fixing hole 321 matched with the fixing column 312. Preferably, the cross-sectional shape of the elastic sheet 32 is a triangle with a notch. The arrangement of the elastic sheet groove 11 can ensure that the elastic sheet limiting part 31 is always positioned at the inner bending side of the elbow main body 1.
When the rotating shaft 2 needs to be installed, the protruding block 5 of the elastic piece limiting piece 31 can be inserted into the limiting groove 6, then the rotating shaft 2 is installed into the elbow main body 1, and finally the protruding block of the rotating shaft limiting piece 4 penetrates through the opening 12 and is inserted into the limiting groove 6. The two sides of the convex blocks are matched to limit the rotating shaft 2 from separating from the elbow main body 1.
Moreover, in order to facilitate the assembly between the rotating shaft 2 and the elbow main body 1, a positioning ring 13 for abutting against the rotating shaft 2 is arranged in the elbow main body 1, the positioning ring 13 limits the depth of the rotating shaft 2 in the elbow main body 1, so that after the rotating shaft 2 is inserted into the elbow main body 1, the position of the limiting groove 6 can correspond to the opening 12, and therefore the protruding block of the rotating shaft limiting part 4 can be directly inserted into the limiting groove 6 after passing through the opening 12.
Further, the pivot 2 includes pivot 21 and lower pivot 22, pivot 21 and lower pivot 22 are located respectively the upper and lower both ends of elbow main part 1, pivot 21 and lower pivot 22 are all passed through the pivot connecting piece with make elbow main part 1 rotates and is connected.
The up end of elbow main part 1 is equipped with and is used for the restriction go up the arc wall 14 of the rotation range of pivot 21, go up pivot 21 be equipped with the spacing post 211 of rotation of arc wall 14 looks adaptation, it is in to rotate spacing post 211 remove in the arc wall 14. The lower rotating shaft 22 is provided with a connecting disc 221 for an external connection part, and the connecting disc 221 is provided with a plurality of connecting holes 222. Go up pivot 21, lower pivot 22 and elbow main part 1 and be hollow structure, elbow main part 1 still is equipped with and is used for the external opening 15 of circuit, external opening 15's setting can be convenient for other auxiliary electronic device follow external opening 15 department connects the power supply circuit.
It should be noted that the hollow structure design of the upper rotating shaft 21, the lower rotating shaft 22 and the elbow main body 1 can be used for hiding and hiding the electric wire circuit of the lamp. The upper rotating shaft 21 is generally connected with a lamp post, and in an actual use condition, a bad operation condition of 360-degree rotation is most likely to occur, so that the arrangement of the arc-shaped groove 14 can effectively prevent the twisted wire of the lamp from generating a situation, which results in an open circuit of a connection point between the wire and an electric appliance.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (10)
1. A steering elbow for a dental lamp is characterized by comprising an elbow main body, a rotating shaft and a rotating shaft connecting piece, wherein the rotating shaft is connected to the elbow main body through the rotating shaft connecting piece;
the rotating shaft connecting piece comprises a rotating shaft friction piece for blocking the rotating shaft from rotating and a rotating shaft limiting piece corresponding to the rotating shaft friction piece, the rotating shaft friction piece is arranged on the inner bending side of the elbow main body, and the rotating shaft limiting piece is arranged on the outer bending side of the elbow main body;
the rotating shaft friction piece comprises an elastic piece limiting piece and an elastic piece arranged on the elastic piece limiting piece, and the elastic piece presses the elastic piece limiting piece to the rotating shaft so as to block the rotating shaft from rotating;
the elastic piece limiting part and the rotating shaft limiting part are provided with protruding blocks used for being connected with the rotating shaft, the rotating shaft is provided with limiting grooves matched with the protruding blocks, and the protruding blocks are inserted into the limiting grooves to limit the rotating shaft to be separated from the elbow main body.
2. The steering elbow according to claim 1, wherein the elbow body is provided with a spring plate groove for mounting the spring plate retaining member and an opening for mounting the rotation shaft retaining member, and the protrusion of the rotation shaft retaining member is inserted into the retaining groove through the opening.
3. The steering elbow according to claim 2, wherein a retaining ring is provided in said elbow body for abutting against said shaft, said retaining ring limiting the depth of insertion of said shaft into said elbow body to control the position of said retaining groove relative to said opening.
4. The steering elbow according to claim 1, wherein the spring retaining member has a spring mounting groove adapted to the spring, and the spring mounting groove has a fixing post for fixing the spring.
5. The steering elbow according to claim 4, wherein the resilient tab is provided with a fastening hole adapted to the fastening post.
6. The steering elbow according to claim 1, wherein the rotatable shaft comprises an upper rotatable shaft and a lower rotatable shaft, the upper rotatable shaft and the lower rotatable shaft being disposed at respective upper and lower ends of the elbow body.
7. The steering elbow according to claim 6, wherein the upper end surface of the elbow body is provided with an arcuate slot for limiting the range of rotation of the upper rotatable shaft.
8. The steering elbow according to claim 7, wherein said upper rotatable shaft is provided with a rotation limiting post adapted to said arcuate groove, said rotation limiting post being movable within said arcuate groove.
9. The steering elbow according to claim 6, wherein said lower rotatable shaft is provided with a connecting plate for an externally connecting member, said connecting plate being provided with a plurality of connecting holes.
10. The steering elbow according to claim 6, wherein the upper rotating shaft, the lower rotating shaft and the elbow main body are hollow, and the elbow main body is further provided with an external opening for external connection of a line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921293694.7U CN210398828U (en) | 2019-08-09 | 2019-08-09 | A turn to elbow for dental lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921293694.7U CN210398828U (en) | 2019-08-09 | 2019-08-09 | A turn to elbow for dental lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210398828U true CN210398828U (en) | 2020-04-24 |
Family
ID=70359538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921293694.7U Active CN210398828U (en) | 2019-08-09 | 2019-08-09 | A turn to elbow for dental lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210398828U (en) |
-
2019
- 2019-08-09 CN CN201921293694.7U patent/CN210398828U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |