CN215173340U - Dust cover mechanism of lifting rocker arm - Google Patents
Dust cover mechanism of lifting rocker arm Download PDFInfo
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- CN215173340U CN215173340U CN202120600248.7U CN202120600248U CN215173340U CN 215173340 U CN215173340 U CN 215173340U CN 202120600248 U CN202120600248 U CN 202120600248U CN 215173340 U CN215173340 U CN 215173340U
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- driving section
- rotating shaft
- rocker arm
- dust cover
- driving
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Abstract
The utility model discloses a lifting rocker arm's shield mechanism, include: the dustproof cover is connected with the rotating shaft; the transmission mechanism comprises gear teeth coaxially connected with the rotating shaft and a driven sliding block; the power mechanism comprises a rotating wheel, a cylindrical cam and a power source for driving the rotating wheel and the cylindrical cam to synchronously rotate, and the periphery of the rotating wheel is provided with a tooth part which can be meshed with the gear teeth; the cylindrical cam is provided with a driving track which at least comprises a first driving section, a second driving section and a third driving section, and the driven slide block extends into the driving track; when the driven sliding block moves in the first driving section, the gear teeth are meshed with the tooth parts, and the rotating shaft drives the dustproof cover to rotate circumferentially; when the driven slide block moves in the second driving section, the driven slide block drives the rotating shaft to axially move upwards; when the driven slide block moves in the third driving section, the driven slide block drives the rotating shaft to move axially downwards. The utility model has the advantages of simplified structure, reduced power consumption, effective action and increased stability of the mechanism; the action is more accurate and flexible.
Description
Technical Field
The utility model belongs to the technical field of rainfall automatic monitoring, especially, relate to a lift shield mechanism of rocking arm.
Background
The intelligent rainfall sampler is a relatively wide rainfall automatic monitoring instrument, and the automatic opening and closing of the dustproof cover is a necessary condition for the use of the intelligent rainfall sampler. The dustproof mechanism is executed according to verification regulations or related standards, and is mainly GB 13580.2-92 collection and preservation of atmospheric precipitation samples, HJ/T174-. The regulations give standards for closing and opening the dust cover, and GB/T19117-.
In the face of new technical requirements of automatic samplers for rainfall, acid rain and the like, a dustproof cover opening and closing mechanism which is accurate, flexible and reliable in action and capable of automatically recording opening and closing time needs to be developed.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a dustproof cover mechanism of a lifting rocker arm with accurate, flexible and reliable actions.
The utility model provides a technical scheme that its technical problem adopted is: a dust cover mechanism for a lift rocker arm, comprising:
the dustproof cover is connected with the rotating shaft;
the transmission mechanism comprises gear teeth coaxially connected with the rotating shaft and a driven sliding block;
the power mechanism comprises a rotating wheel, a cylindrical cam and a power source, wherein the cylindrical cam is coaxially arranged with the rotating wheel, the power source is used for driving the rotating wheel and the cylindrical cam to synchronously rotate, and a tooth part capable of being meshed with the gear teeth is arranged on the periphery of the rotating wheel;
the cylindrical cam is provided with a driving track which at least comprises a first driving section, a second driving section and a third driving section, and the driven sliding block extends into the driving track;
when the driven sliding block moves in the first driving section, the gear teeth are meshed with the tooth parts, and the rotating shaft drives the dustproof cover to rotate circumferentially;
when the driven slide block moves in the second driving section, the driven slide block drives the rotating shaft to axially move upwards;
when the driven slide block moves in the third driving section, the driven slide block drives the rotating shaft to move axially downwards.
Furthermore, the periphery of the rotating wheel is also provided with a smooth wheel part. The wheel part and the tooth part are matched to control whether the rotating wheel is meshed with the gear teeth or not to realize transmission.
Furthermore, the first driving section extends along the circumferential direction of the cylindrical cam, the second driving section extends upwards in an inclined mode and is communicated with the first driving section, the third driving section extends downwards in an inclined mode from the end portion of the first driving section, and a horizontal section parallel to the first driving section is further arranged between the second driving section and the third driving section.
Further, the first driving section, the second driving section and the third driving section are in smooth transition. The smooth movement of the driven slide block is ensured.
Further, the power mechanism further comprises a photoelectric switch. The photoelectric switch can judge whether the dust cover completes opening or closing action, and smooth operation of the mechanism is guaranteed.
Furthermore, drive mechanism still includes the flange that lifts with the pivot coaxial linking to each other, driven slider links to each other with the mounting panel, and the flange that lifts is located to the second slider on the other side tip of mounting panel.
Furthermore, the dustproof cover is characterized by further comprising a shell, the transmission mechanism and the power mechanism are arranged in the shell, and the rotating shaft penetrates out of the shell upwards and then is connected with the dustproof cover. The shell has a protection effect on the transmission mechanism and the power mechanism, and is convenient for installation of the whole mechanism.
Furthermore, a cushion pad is arranged below the dustproof cover. The setting of blotter makes can not lead to damaging dry bucket and wet bucket cause too big pressure when the shield pushes down, also guarantees the leakproofness after the lid closes.
Furthermore, a protective sleeve is sleeved outside the rotating shaft.
The utility model has the advantages that: 1) compared with the traditional mechanism that the lifting of the dustproof cover is controlled by one motor and the rotation of the dustproof cover is controlled by one motor, the utility model realizes the switching cover and the rotation of the dustproof cover by the rotation of one motor, the structure is simplified, the power consumption is reduced, and the action is effective; 2) the logic control is simplified, the whole structure is optimized, and the stability of the mechanism is improved; 3) the photoelectric switch can judge whether the dust cover completes the action of opening or closing the rain collecting barrel only by recording the rotation angle (staying position) of the gear teeth after the descending stage of the cylindrical cam, so that the opening and closing time can be conveniently recorded and the action duration can be conveniently controlled; 4) the control logic of the lifting rocker arm for opening and closing the dust covers before and after rain collection is clear, and the opening and closing actions of the mechanism are more accurate, flexible and reliable; 5) the dust cover has short opening and closing action time and is suitable for automatic sampling monitoring instruments for rainfall, acid rain and the like.
Drawings
Fig. 1 is a first perspective view of the present invention.
Fig. 2 is a second perspective view of the present invention.
Fig. 3 is a third perspective view of the present invention.
Fig. 4 is a perspective view of the present invention.
Fig. 5 is a first side view of the present invention.
Fig. 6 is a second side view of the present invention.
Fig. 7 is a sectional view H-H in fig. 6.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1-7, a dust cover mechanism of a lifting rocker arm comprises a dust cover 1 connected with a rotating shaft 2, a transmission mechanism 3 matched with the rotating shaft 2, and a power mechanism 4 matched with the transmission mechanism 3.
The transmission mechanism 3 comprises a gear tooth 31 coaxially connected with the rotating shaft 2 and a driven slide block 32. The transmission mechanism 3 further comprises a lifting flange 33 coaxially connected with the rotating shaft 2, the driven sliding block 32 is connected with a vertical mounting plate 34, the other side of the upper end of the mounting plate 34 is connected with a second sliding block 35, and the second sliding block 35 is clamped in the lifting flange 33.
The power mechanism 4 includes a rotating wheel 41, a cylindrical cam 42 coaxially disposed with the rotating wheel 41, and a power source 43 for driving the rotating wheel 41 and the cylindrical cam 42 to rotate synchronously, and the outer periphery of the rotating wheel 41 is provided with a tooth portion 411 capable of meshing with the gear teeth 31, and a smooth wheel portion 412.
The cylindrical cam 42 is provided with a driving track 5, which at least comprises a first driving section 51, a second driving section 52 and a third driving section 53, and the driven slider 32 extends into the driving track 5. The first driving section 51 extends along the circumferential direction of the cylindrical cam 42, the second driving section 52 extends obliquely upward and has a rear end communicating with the first driving section 51, and the third driving section 53 extends obliquely downward from the end of the first driving section 51. A horizontal section 54 for communication between the second drive section 52 and the third drive section 53 is also provided between them, parallel to the first drive section 51. In order to ensure the smoothness of the movement of the follower slider 32 along the driving rail 5, the first driving section 51, the second driving section 52, the third driving section 53 and the horizontal section 54 are all in smooth transition.
In order to protect the transmission mechanism 3 and the power mechanism 4, the dust-proof cover further comprises a shell 6, so that the transmission mechanism 3 and the power mechanism 4 are both covered in the shell 6, and the rotating shaft 2 penetrates out of the shell 6 upwards and then is connected with the dust-proof cover 1. In order to protect the rotating shaft 2, a protective sleeve 21 is sleeved outside the rotating shaft 2.
The utility model discloses a use is: power supply 43 drive cylindrical cam 42 and rotation wheel 41 circumferential direction, driven slider 32 is at drive track 5 internalization, when driven slider 32 is at first drive section 51 internalization, teeth of a cogwheel 31 and rotation wheel 41 are located the same height, and teeth of a cogwheel 31 and tooth 411 mesh, thereby it drives teeth of a cogwheel 31 rotation to rotate wheel 41, because teeth of a cogwheel 31 and pivot 2 fixed connection, pivot 2 drives shield 1 circumferential direction, thereby realize shield 1 at dry bucket and the conversion between the wet bucket that is used for collecting the rainwater.
In order to control the circumferential rotation angle of the dust cap 1, the power mechanism 4 further includes a photoelectric switch 44 for monitoring the rotation angle of the gear 31, so as to ensure that the dust cap 1 completes the opening or closing action. When rotated to a set angle, the photoelectric switch 44 can be triggered to prevent further rotation. Of course, the circumferential length of the tooth 411 is set to control the circumferential rotation angle of the dust cap 1, and when the gear teeth 31 and the smooth wheel part 412 are rotated to contact, the gear teeth and the smooth wheel part 412 cannot transmit power.
When the follower slide 32 moves in the third driving segment 52, the gear 31 is engaged with the wheel portion 412, that is, the gear 31 is not engaged with the gear portion 411, and the follower slide 32 drives the rotating shaft 2 to move axially downward until the follower slide 32 enters the horizontal segment 54. The angle of inclination of the third drive section 52 determines the axial height of the descent of the shaft 2. At this time, the dust cover 1 is moved downwards to cover the upper part of the dry barrel or the wet barrel, and in order to avoid the large pressing strength and ensure the components, a cushion pad made of elastic material can be arranged below the dust cover 1.
When the driven slide block 32 moves in the second driving section 52, the driven slide block 32 drives the rotating shaft 2 to move axially upwards until the driven slide block 32 enters the first driving section 51, and the rotating wheel 41 is reset to be at the same height as the gear teeth 31. The angle of inclination of the second drive section 52 determines the axial height of the shaft 2 at which it rises. The dust cap 1 is raised at this time to expose the upper opening of the dry or wet tub.
It can also be said that the first and second,
1. and (3) a rising stage: when the rain collecting starting power source 43 rotates to the rising stage of the cylindrical cam 42, the tooth part 411 is not meshed with the gear teeth 31, the cylindrical cam 42 drives the driven slide block 32 to rise, the driven slide block 32 drives the lifting flange 33 to rise, and the rising and uncovering actions of the dust cover 1 are realized;
2. a stable operation stage: when the power source 43 continues to rotate to the stable operation stage of the cylindrical cam 42, the tooth part 411 and the gear teeth 31 start to be meshed for transmission, the cylindrical cam 42 drives the rotating shaft 2 to rotate for a half circle together, the driven slide block 32 does not act, and the dust-proof cover 1 rotates from the upper part of the rain collecting barrel to the upper part of the supporting frame to realize the rotating action of the dust-proof cover 1;
3. a descending stage: when the power source 43 continues to rotate to the descending stage of the cylindrical cam 42, the tooth 411 is disengaged from the gear teeth 31, the cylindrical cam 42 drives the driven slide block 32 to descend, the driven slide block 32 drives the lifting flange 33 to descend, and the descending cover closing action of the dust cap 1 above the supporting frame is realized;
4. a recovery stage: after the rain collection is finished, the cylindrical cam 42 continues to rotate, so that the dust-proof cover 1 can rotate from the opening of the supporting frame to the closing of the rain collection barrel.
The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.
Claims (9)
1. The utility model provides a dust cover mechanism of lifting rocker arm which characterized in that includes:
the dustproof cover (1) is connected with the rotating shaft (2);
the transmission mechanism (3) comprises a gear tooth (31) coaxially connected with the rotating shaft (2) and a driven sliding block (32);
the power mechanism (4) comprises a rotating wheel (41), a cylindrical cam (42) and a power source (43), wherein the cylindrical cam (42) is coaxially arranged with the rotating wheel (41), the power source is used for driving the rotating wheel (41) and the cylindrical cam (42) to synchronously rotate, and a tooth part (411) capable of being meshed with the gear teeth (31) is arranged on the periphery of the rotating wheel (41);
the cylindrical cam (42) is provided with a driving track (5) which at least comprises a first driving section (51), a second driving section (52) and a third driving section (53), and the driven sliding block (32) extends into the driving track (5);
when the driven sliding block (32) moves in the first driving section (51), the gear teeth (31) are meshed with the tooth parts (411), and the rotating shaft (2) drives the dust cover (1) to rotate in the circumferential direction;
when the driven sliding block (32) moves in the second driving section (52), the driven sliding block (32) drives the rotating shaft (2) to axially move upwards;
when the driven sliding block (32) moves in the third driving section (53), the driven sliding block (32) drives the rotating shaft (2) to move axially and downwards.
2. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: the periphery of the rotating wheel (41) is also provided with a smooth wheel part (412).
3. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: the first driving section (51) extends along the circumferential direction of the cylindrical cam (42), the second driving section (52) extends obliquely upwards to be communicated with the first driving section (51), the third driving section (53) extends obliquely downwards from the end part of the first driving section (51), and a horizontal section (54) parallel to the first driving section (51) is further arranged between the second driving section (52) and the third driving section (53).
4. The dust cover mechanism of a lifting rocker arm of claim 3, wherein: the first driving section (51), the second driving section (52) and the third driving section (53) are in smooth transition.
5. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: the power mechanism (4) further comprises a photoelectric switch (44).
6. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: drive mechanism (3) still include with pivot (2) coaxial coupling to each other lift flange (33), driven slider (32) link to each other with mounting panel (34), and lift flange (33) are located in second slider (35) on the opposite side tip of mounting panel (34).
7. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: the dustproof cover is characterized by further comprising a shell (6), the transmission mechanism (3) and the power mechanism (4) are arranged in the shell (6), and the rotating shaft (2) penetrates out of the shell (6) upwards and then is connected with the dustproof cover (1).
8. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: a buffer pad is arranged below the dustproof cover (1).
9. The dust cover mechanism of a lifting rocker arm of claim 1, wherein: and a protective sleeve (21) is sleeved outside the rotating shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120600248.7U CN215173340U (en) | 2021-03-23 | 2021-03-23 | Dust cover mechanism of lifting rocker arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120600248.7U CN215173340U (en) | 2021-03-23 | 2021-03-23 | Dust cover mechanism of lifting rocker arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215173340U true CN215173340U (en) | 2021-12-14 |
Family
ID=79351462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120600248.7U Active CN215173340U (en) | 2021-03-23 | 2021-03-23 | Dust cover mechanism of lifting rocker arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215173340U (en) |
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2021
- 2021-03-23 CN CN202120600248.7U patent/CN215173340U/en active Active
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Address after: 311422 Room 305, floor 3, No. 7, Yinhu innovation center, No. 9, Fuxian Road, Yinhu street, Fuyang District, Hangzhou, Zhejiang Province Patentee after: ZHEJIANG HENGDA INSTRUMENTS CO.,LTD. Address before: 6 / F, building 1, No. 1418-50, Moganshan Road, Shangcheng District, Hangzhou City, Zhejiang Province Patentee before: ZHEJIANG HENGDA INSTRUMENTS CO.,LTD. |