CN214365587U - Cam component of floor spring - Google Patents
Cam component of floor spring Download PDFInfo
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- CN214365587U CN214365587U CN202022730413.9U CN202022730413U CN214365587U CN 214365587 U CN214365587 U CN 214365587U CN 202022730413 U CN202022730413 U CN 202022730413U CN 214365587 U CN214365587 U CN 214365587U
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- cam
- floor spring
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Abstract
A cam assembly of a floor spring comprises a rotating shaft, a first cam and a second cam, wherein the first cam and the second cam are arranged on the rotating shaft, the second cam is positioned below the first cam, the maximum width of the first cam is larger than that of the second cam, the left side and the right side of the second cam are symmetrical relative to the central line of the second cam, the second cam is provided with a first groove, a first bulge and a second bulge, the first bulge and the second bulge are respectively positioned at two ends of the first groove, the two second bulges are transited through a connecting arc, the radius of the connecting arc is larger than that of the first groove, and when the angle of a door is opened to 90 degrees, the first bulge is matched with a roller on one side of the floor spring; when the angle of the door is opened to 130 degrees, the second protrusion is matched with the roller on one side of the floor spring. Therefore, the door leaf can be positioned at 90 degrees and 130 degrees and can be stopped at will within the range of 130-180 degrees through the cam assembly of the floor spring, and the application range of the cam assembly of the floor spring is improved.
Description
Technical Field
The utility model belongs to a cam structure especially relates to a cam subassembly of ground spring.
Background
The cam is installed in the floor spring, and when using, the door rotates and drives pivot and cam rotation, and the cam carries out the bearing to the door, and the door can rotate on the cam, realizes opening the door and closes the door. However, the existing cam is only opened by 90 degrees or 180 degrees, and is difficult to position at other angles, so that the use of the cam is greatly limited.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can solve the cam subassembly of a floor spring of at least one in the above-mentioned problem.
According to one aspect of the present invention, there is provided a cam assembly for a floor spring, comprising a rotating shaft, a first cam and a second cam, wherein the first cam and the second cam are both disposed on the rotating shaft, the second cam is disposed under the first cam, the maximum width of the first cam is greater than the maximum width of the second cam, the left and right sides of the second cam are symmetrical with respect to the center line of the second cam, the second cam is provided with two first grooves, two first protrusions and two second protrusions, the two first grooves are symmetrical with respect to the center line of the second cam, the two second protrusions are symmetrical with respect to the center line of the second cam, the first protrusions and the second protrusions are respectively disposed at both ends of the first grooves, the second protrusions are disposed at a side away from the rotating shaft, the two second protrusions are transited through a connecting arc, the connecting arc is outwards convex, the radius of the connecting arc is larger than that of the first groove, and when the door is opened at an angle of 90 degrees, the first protrusion is matched with the roller on one side of the floor spring; when the angle of the door is opened to 130 degrees, the second protrusion is matched with the roller on one side of the floor spring.
The utility model has the advantages that: the first bulge is arranged, so that the second cam can be conveniently positioned when the door leaf is opened to 90 degrees, and the positioning of the rotating shaft is realized; the second cam can be conveniently positioned when the door leaf is opened to 130 degrees by virtue of the second bulge; the second cam and the roller of the floor spring can be positioned within the range of 130-180 degrees by arranging the connecting arc, and the radius of the connecting arc is larger than that of the first groove, so that the door leaf can be stopped at will within the range of 130-180 degrees of opening angle, and different use requirements are met; because the left side and the right side of the second cam are symmetrical relative to the central line of the second cam, the door leaf can be opened for 360 degrees, and the application range of the cam component of the floor spring is improved.
In some embodiments, the second cam is provided with two second grooves, the two second grooves are symmetrical with respect to a center line of the second cam, and when the door is in a closed state, the second grooves are matched with the roller on the other side of the floor spring. Therefore, the second groove is arranged, so that the door leaf can be positioned when being in a closed state.
In some embodiments, the first cam is provided with two third grooves, two of the third grooves are symmetrical with respect to the center line of the first cam, and the outer end faces of the third grooves are flush with the outer end faces of the second grooves. Therefore, the third groove is formed, so that the first cam can play a role in positioning the door leaf when the door leaf is closed.
In some embodiments, the top end of the first cam is provided with a straight edge, and the length of the straight edge is 2-2.5 mm. Therefore, through the straight edge at the top end of the first cam, when the door leaf rotates to 180 degrees, the straight edge can be in contact with the roller on the ground spring, and the door leaf is positioned.
In some embodiments, the maximum width of the first cam is 4mm greater than the maximum width of the second cam. Therefore, the top end of the first cam can be in contact with the roller on the floor spring, and the door leaf can be positioned when being opened to 180 degrees.
In some embodiments, the radius of the arc of the second protrusion is 5mm, the connecting arc comprises a first segment of arc, a second segment of arc and a third segment of arc which are connected in sequence, the first segment of arc is connected with the second protrusion, the radius of the first segment of arc is 26mm, the radius of the second segment of arc is 5mm, and the radius of the third segment of arc is 25 mm. Therefore, the door leaf can be in the range of 130-180 degrees through the first section of arc, the second section of arc and the third section of arc, each corresponding arc is in contact with the roller of the floor spring, the door leaf can be stopped at will within the angle range, and the use requirement is met.
Drawings
FIG. 1 is a side view of a cam assembly of the floor spring of the present invention;
FIG. 2 is a schematic left side view of the structure of FIG. 1;
fig. 3 is a schematic front view of a second cam in the cam assembly of the floor spring according to the present invention;
fig. 4 is a schematic front view of the first cam in the cam assembly of the floor spring according to the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Refer to fig. 1 to 4. A cam component of a floor spring comprises a rotating shaft 1, a first cam 2 and a second cam 3, wherein the first cam 2 and the second cam 3 are arranged on the rotating shaft 1, the second cam 3 is positioned below the first cam 2, the maximum width of the first cam 2 is larger than that of the second cam 3, the left side and the right side of the second cam 3 are symmetrical relative to the central line of the second cam 3, the second cam 3 is provided with a first groove 31, a first bulge 32 and a second bulge 33, the first groove 31, the first bulge 32 and the second bulge 33 are both two, the two first grooves 31 are symmetrical relative to the central line of the second cam 3, the two first bulges 32 are symmetrical relative to the central line of the second cam 3, the two second bulges 33 are symmetrical relative to the central line of the second cam 3, the first bulge 32 and the second bulge 33 are respectively positioned at two ends of the first groove 31, and the second bulge 33 is positioned at one side far away from the rotating shaft 1, the two second protrusions 33 are transited through a connecting arc 34, the connecting arc 34 protrudes outwards, the radius of the connecting arc 34 is larger than that of the first groove 31, and when the angle of the door is opened by 90 degrees, the first protrusion 32 is matched with a roller on one side of the floor spring; when the door is opened to an angle of 130 deg., the second projection 33 is engaged with the floor spring side roller.
The utility model discloses a cam subassembly of floor spring installs in the floor spring when using, and the one end of pivot 1 is fixed with the door leaf pivot, rotates through the door leaf and drives pivot 1 and rotate to drive the epaxial first cam 2 of pivot and second cam 3 and rotate. When the door leaf opening angle is 90 degrees, the rotating shaft 1 drives the two cams to rotate, the first bulge 32 of the second cam 3 rotates to the roller on the floor spring, the second cam 3 is positioned through the first bulge 32, the second cam 3 is prevented from further rotating, and therefore the rotating shaft 1 and the door leaf are positioned when the door leaf is opened for 90 degrees.
When external force acts on the door leaf, the external force overcomes the positioning force of the first protrusion 32 to drive the door leaf to continue rotating, and when the first groove 31 in the second cam 3 rotates to the roller position on the floor spring, the first groove 31 is concave towards the middle of the second cam 3, so that the roller has no positioning effect, and the door leaf can be positioned by returning to the 90-degree position.
When the door leaf opening angle is 130 degrees, the second protrusion 33 on the second cam 3 is matched with the roller of the floor spring, and the second cam 3 is positioned by the close contact of the second protrusion 33 and the roller, so that the door leaf can be positioned at the opening angle of 130 degrees.
The second cam 3 is provided with two second grooves 35, the two second grooves 35 are symmetrical relative to the center line of the second cam 3, and when the door is in a closed state, the second grooves 35 are matched with the rollers on the other side of the floor spring. Therefore, the second groove 35 is arranged, so that the door can be kept in a closed state to meet different use requirements.
The first cam 2 is provided with two third grooves 21, the two third grooves 21 are symmetrical relative to the center line of the first cam 2, and the outer end faces of the third grooves 21 are flush with the outer end faces of the second grooves 35. Therefore, the third groove 21 is arranged, the third groove 21 is matched with the roller of the floor spring, the door leaf can be in a closed state under the combined action of the first cam 2 and the second cam 3, and the use requirement is met.
The top end of the first cam 2 is provided with a straight edge 22, and the length of the straight edge 22 is 2-2.5 mm. When the door leaf is opened to 180 degrees, the maximum width of the first cam 2 is larger than that of the second cam 3, so that the top end of the first cam 2 is in contact with the roller of the floor spring, namely the straight edge 22 is abutted against the roller and is pressed on the roller through the straight edge, and the positioning of the door at the position of opening 180 degrees is realized.
The maximum width of the first cam 2 is 4mm larger than that of the second cam 3, so that the top end of the first cam 2 can contact with the roller when the door leaf is opened to 180 degrees.
The radius of the arc of the second protrusion 33 is 5mm, the connecting arc 34 includes a first arc 341, a second arc 342, and a third arc 343 connected in sequence, the first arc 341 is connected to the second protrusion 33, the radius of the first arc 341 is 26mm, the radius of the second arc 342 is 5mm, and the radius of the third arc 343 is 25 mm. From this, each section circular arc of connecting arc 34 is all more smooth, and is the evagination state to, when second cam 3 rotated to connecting arc 34, make connecting arc 34 can compress tightly with the gyro wheel, realize 130 ~ 180 within ranges, the arbitrary location of door leaf satisfies the operation requirement. Meanwhile, the second cam 3 can rotate smoothly to realize transition through the connecting arc 34, the door leaf can be opened at an angle within the range of 0-360 degrees, namely, the left side and the right side of the cam can rotate, and bidirectional rotation is realized.
The above is only the preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these all fall into the protection scope of the present invention.
Claims (3)
1. The cam component of the floor spring is characterized by comprising a rotating shaft (1), a first cam (2) and a second cam (3), wherein the first cam (2) and the second cam (3) are arranged on the rotating shaft (1), the second cam (3) is positioned below the first cam (2), the maximum width of the first cam (2) is greater than that of the second cam (3), the left side and the right side of the second cam (3) are symmetrical relative to the central line of the second cam (3), a first groove (31), a first bulge (32) and a second bulge (33) are arranged on the second cam (3), the first groove (31), the first bulge (32) and the second bulge (33) are two, the first groove (31) is symmetrical relative to the central line of the second cam (3), and the first bulge (32) is symmetrical relative to the central line of the second cam (3), the two second protrusions (33) are symmetrical relative to the central line of the second cam (3), the first protrusion (32) and the second protrusion (33) are respectively located at two ends of the first groove (31), the second protrusion (33) is located on one side far away from the rotating shaft (1), the two second protrusions (33) are transited through a connecting arc (34), the connecting arc (34) is outwards protruded, the radius of the connecting arc (34) is larger than that of the first groove (31), and when the angle of the door is opened to 90 degrees, the first protrusion (32) is matched with a roller on one side of a floor spring; when the angle of the door is opened to 130 degrees, the second bulge (33) is matched with a roller on one side of the floor spring; the second cam (3) is provided with two second grooves (35), the two second grooves (35) are symmetrical relative to the center line of the second cam (3), and when the door is in a closed state, the second grooves (35) are matched with the rollers on the other side of the floor spring; third grooves (21) are formed in the first cam (2), the number of the third grooves (21) is two, the two third grooves (21) are symmetrical relative to the center line of the first cam (2), and the outer end face of each third groove (21) is flush with the outer end face of each second groove (35); the top end of the first cam (2) is provided with a straight edge (22), and the length of the straight edge (22) is 2-2.5 mm.
2. A cam assembly of a floor spring according to claim 1, characterized in that the maximum width of the first cam (2) is 4mm larger than the maximum width of the second cam (3).
3. The cam assembly of the floor spring as claimed in claim 1, wherein the circular arc radius of the second protrusion (33) is 5mm, the connecting arc (34) comprises a first circular arc (341), a second circular arc (342) and a third circular arc (343) which are connected in sequence, the first circular arc (341) is connected with the second protrusion (33), the radius of the first circular arc (341) is 26mm, the radius of the second circular arc (342) is 5mm, and the radius of the third circular arc (343) is 25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022730413.9U CN214365587U (en) | 2020-11-23 | 2020-11-23 | Cam component of floor spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022730413.9U CN214365587U (en) | 2020-11-23 | 2020-11-23 | Cam component of floor spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214365587U true CN214365587U (en) | 2021-10-08 |
Family
ID=77978139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022730413.9U Active CN214365587U (en) | 2020-11-23 | 2020-11-23 | Cam component of floor spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214365587U (en) |
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2020
- 2020-11-23 CN CN202022730413.9U patent/CN214365587U/en active Active
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