CN211151733U - Motor protection mechanism for electric lifting table - Google Patents
Motor protection mechanism for electric lifting table Download PDFInfo
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- CN211151733U CN211151733U CN201922013563.5U CN201922013563U CN211151733U CN 211151733 U CN211151733 U CN 211151733U CN 201922013563 U CN201922013563 U CN 201922013563U CN 211151733 U CN211151733 U CN 211151733U
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- guide rod
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Abstract
The utility model discloses a motor protection mechanism is used to electric lift table, including support, backing plate and first guide bar, the inner wall fixedly connected with motor of support, the top of support and the bottom fixed connection of backing plate. In the utility model, firstly, the push frame is pushed downwards, the first slider slides downwards, the first fixed block moves leftwards on the linkage rod, secondly, the linkage rod descends and simultaneously drives the second slider to move downwards, and the second fixed block drives the second slider to move rightwards on the linkage rod, the first brake plate and the second brake plate are contacted with the rotating shaft of the output end of the motor, so that the rotating shaft stops in a very short time; and finally, the pushing frame is loosened, the first sliding block is rebounded to the original position under the action of the elastic force of the first spring sleeve and the second spring sleeve, and the problem that the shaft at the output end of the motor still rotates under the action of inertia to cause damage to the connection of the internal shaft after the power is abnormally cut off is solved.
Description
Technical Field
The utility model relates to a motor protection field especially relates to a motor protection mechanism is used to electric lift table.
Background
The electric lifting table controls the lifting of the table top through the transmission of the motor, meets the requirements of different people on the height of the table top, and facilitates the work and study of people.
Because the rotating shaft at the output end of the motor has inertia when rotating, after the motor is powered off, the rotating shaft at the output end of the motor still continues to rotate under the action of the inertia, and the motor is overloaded due to the abnormal connection of the rotating shaft at the output end of the motor, so that the rotating speed of the rotating shaft is abnormal, and when the voltage of a circuit connected with the motor is unstable, the rotating shaft at the output end of the motor can generate high-frequency intermittent speed rising and speed falling, which can cause irreversible damage to the connection of the internal shaft of the motor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a motor protection mechanism for an electric lifting table.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a motor protection mechanism for an electric lifting table comprises a support, a base plate and a first guide rod, wherein a motor is fixedly connected to the inner wall of the support, the top end of the support is fixedly connected with the bottom end of the base plate, the top end of the base plate is fixedly connected with a base of the first guide rod, a first sliding block is sleeved on the surface of the first guide rod, a push frame is fixedly connected to the right side of the first sliding block, a first fixed block is fixedly connected to the front side of the first sliding block, a linkage rod is movably connected to the inside of the first fixed block, a second fixed block is fixedly connected to the surface of the linkage rod, a second sliding block is fixedly connected to the back side of the second fixed block, a second guide rod is movably connected to the inside of the second sliding block, the base of the second guide rod is fixedly connected with the top end of the base plate, a first blocking block is fixedly connected to the top end of the first guide rod, the first sliding block is connected with the first blocking block, the first spring sleeve is sleeved on the surface of the first guide rod, the top end of the second guide rod is fixedly connected with a second blocking block, the second sliding block is connected with the second blocking block through a second spring sleeve, and the second spring sleeve is sleeved on the surface of the second guide rod.
The first flexible cover of back fixedly connected with of first slider, the first buffer spring of left side inner wall fixedly connected with of first flexible cover, the first buffer spring keeps away from the first brake block of one end fixedly connected with of first flexible cover left side inner wall, the spout swing joint of the surface of first brake block and first flexible cover inner wall, the flexible cover of back fixedly connected with second of second slider, the right side inner wall fixedly connected with second buffer spring of the flexible cover of second, the one end fixedly connected with second brake block of the flexible cover right side inner wall of second is kept away from to second buffer spring, the spout swing joint of the surface of second brake block and the flexible cover inner wall of second.
As a further description of the above technical solution:
the inside of backing plate is seted up and is run through the through hole to the bottom by the top, and this through hole and the size phase-match of motor output.
As a further description of the above technical solution:
and two ends of the linkage rod are provided with limiting blocks.
As a further description of the above technical solution:
the inside of first flexible cover is seted up and is extended to the inside spout of top inner wall by a top inner wall, and sets up and extend to the inside spout of end inner wall by end inner wall.
As a further description of the above technical solution:
the inside of the second telescopic sleeve is provided with a sliding chute extending to the inside of the top inner wall from the top inner wall, and is provided with a sliding chute extending to the inside of the bottom inner wall from the bottom inner wall.
As a further description of the above technical solution:
the right end of the first brake plate is provided with a semi-circular groove.
As a further description of the above technical solution:
and a semi-circular groove is formed at the left end of the second brake plate.
As a further description of the above technical solution:
the first fixing block is internally provided with a through hole penetrating from the left end to the right end.
As a further description of the above technical solution:
and a through hole penetrating from the left end to the right end is formed in the second fixing block.
Compared with the prior art, the beneficial effects of the utility model are that: firstly, pushing a push frame downwards, enabling a first sliding block to slide downwards along a first guide rod, enabling a first fixed block to carry the first sliding block to move leftwards on a linkage rod, enabling the linkage rod to descend and simultaneously drive a second sliding block to move downwards along a second guide rod, enabling the second fixed block to drive the second sliding block to move rightwards on the linkage rod, enabling a first brake plate and a second brake plate to move towards the direction close to a rotating shaft of an output end of a motor under the driving of the first sliding block and the second sliding block respectively, and enabling the rotating shaft which loses active force and rotates under the action of inertia to stop in a very short time under the action of friction force and pressure; and finally, the first sliding block of the push frame is loosened under the action of the elastic force of the first spring sleeve and the second spring sleeve, and the second sliding block rebounds to the original position, so that the problem that the shaft at the output end of the motor still rotates under the action of inertia to cause damage to the connection of the internal shaft after abnormal power failure occurs is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the utility model;
FIG. 3 is an enlarged cross-sectional view of the first telescoping sleeve structure of the present invention;
fig. 4 is a top enlarged view of the first brake plate structure of the present invention.
In the figure: 1. a support; 2. a base plate; 3. a first guide bar; 4. a first slider; 5. a first fixed block; 6. a linkage rod; 7. a second fixed block; 8. a second slider; 9. a second guide bar; 10. a second brake plate; 11. a first brake plate; 12. pushing the frame; 13. a second spring housing; 14. a first telescopic sleeve; 15. a first buffer spring; 16. a second telescopic sleeve; 17. a second buffer spring; 18. a second retardation block; 19. a first retardation block; 20. a first spring housing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-4, a motor protection mechanism for an electric lifting table comprises a support 1, a backing plate 2 and a first guide rod 3, wherein a motor is fixedly connected to the inner wall of the support 1, the top end of the support 1 is fixedly connected to the bottom end of the backing plate 2, the top end of the backing plate 2 is fixedly connected to the base of the first guide rod 3, a first slider 4 is sleeved on the surface of the first guide rod 3, a push frame 12 is fixedly connected to the right side of the first slider 4, a first fixed block 5 is fixedly connected to the front side of the first slider 4, a linkage rod 6 is movably connected to the inside of the first fixed block 5, a second fixed block 7 is fixedly connected to the surface of the linkage rod 6, a second slider 8 is fixedly connected to the back side of the second fixed block 7, a second guide rod 9 is movably connected to the inside of the second slider 8, the base of the second guide rod 9 is fixedly connected to the top end of the backing plate 2, a first blocking, the first sliding block 4 is connected with the first blocking block 19 through a first spring sleeve 20, the first spring sleeve 20 is sleeved on the surface of the first guide rod 3, the second blocking block 18 is fixedly connected to the top end of the second guide rod 9, the second sliding block 8 is connected with the second blocking block 18 through a second spring sleeve 13, and the second spring sleeve 13 is sleeved on the surface of the second guide rod 9.
The back of the first sliding block 4 is fixedly connected with a first telescopic sleeve 14, the left inner wall of the first telescopic sleeve 14 is fixedly connected with a first buffer spring 15, one end of the first buffer spring 15, which is far away from the left inner wall of the first telescopic sleeve 14, is fixedly connected with a first brake plate 11, the first buffer spring 15 provides buffering for the first brake plate 11, and the direct contact and impact of the first brake plate 11 and the rotating shaft of the output end of the motor are avoided, the surface of the first brake plate 11 is movably connected with a chute on the inner wall of the first telescopic sleeve 14, the back of the second sliding block 8 is fixedly connected with a second telescopic sleeve 16, the right inner wall of the second telescopic sleeve 16 is fixedly connected with a second buffer spring 17, one end of the second buffer spring 17, which is far away from the right inner wall of the second telescopic sleeve 16, is fixedly connected with a second brake plate 10, the second buffer spring 17 provides buffering for the second brake plate 10, and the direct contact and impact of the second brake plate, the surface of the second brake plate 10 is movably connected with the sliding groove on the inner wall of the second telescopic sleeve 16.
Further, the through hole that runs through to the bottom by the top is seted up to backing plate 2's inside, and this through hole and the size phase-match of motor output end for backing plate 2 does not lead to the fact the hindrance to motor output pivot.
Furthermore, two ends of the linkage rod 6 are provided with limiting blocks to ensure that the first fixing block 5 and the second fixing block 7 cannot be separated from the linkage rod 6.
Further, the inside of the first telescopic sleeve 14 is provided with a chute extending from the top inner wall to the inside of the top inner wall, and provided with a chute extending from the bottom inner wall to the inside of the bottom inner wall, so that the chute enables the first brake plate 11 to move more stably in the first telescopic sleeve 14.
Further, the inside of the second telescopic sleeve 16 is provided with a chute extending from the top inner wall to the inside of the top inner wall, and is provided with a chute extending from the bottom inner wall to the inside of the bottom inner wall, so that the second brake plate 10 can move more stably in the second telescopic sleeve 16 due to the chute.
Furthermore, a quasi-semicircular groove is formed in the right end of the first brake plate 11, and the quasi-semicircular groove is attached to the motor rotating shaft.
Furthermore, the left end of the second brake plate 10 is provided with a semi-circular groove, which is attached to the motor shaft.
Furthermore, a through hole penetrating from the left end to the right end is formed in the first fixing block 5, so that the first fixing block 5 can slide on the surface of the linkage rod 6.
Furthermore, a through hole penetrating from the left end to the right end is formed in the second fixing block 7, so that the second fixing block 7 can slide on the surface of the linkage rod 6.
The working principle is as follows: people push the push frame 12 downwards, the first slide block 4 slides downwards along the first guide rod 3, the first fixed block 5 with the first slide block 4 moves leftwards on the linkage rod 6, the linkage rod 6 descends and drives the second slide block 8 to move downwards along the second guide rod 9, and the second fixed block 7 drives the second slide block 8 to move rightwards on the linkage rod 6, the first brake plate 11 and the second brake plate 10 move towards the direction close to the rotating shaft of the output end of the motor under the driving of the first slide block 4 and the second slide block 8 respectively until the first brake plate 11 and the second brake plate 10 contact with the rotating shaft of the output end of the motor, under the action of friction and pressure, the rotating shaft which loses the main power and rotates under the action of inertia stops in a very short time, the first sliding block 4 is loosened by the push frame 12 under the action of the elastic force of the first spring sleeve 20 and the second spring sleeve 13, and the second sliding block 8 rebounds to the original position.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A motor protection mechanism for an electric lifting table comprises a support (1), a base plate (2) and a first guide rod (3), and is characterized in that a motor is fixedly connected to the inner wall of the support (1), the top end of the support (1) is fixedly connected with the bottom end of the base plate (2), the top end of the base plate (2) is fixedly connected with the base of the first guide rod (3), a first sliding block (4) is sleeved on the surface of the first guide rod (3), a push frame (12) is fixedly connected to the right side of the first sliding block (4), a first fixed block (5) is fixedly connected to the front side of the first sliding block (4), a linkage rod (6) is movably connected to the inside of the first fixed block (5), a second fixed block (7) is fixedly connected to the surface of the linkage rod (6), and a second sliding block (8) is fixedly connected to the back side of the second fixed block (7), a second guide rod (9) is movably connected inside the second sliding block (8), a base of the second guide rod (9) is fixedly connected with the top end of the base plate (2), a first blocking block (19) is fixedly connected with the top end of the first guide rod (3), the first sliding block (4) is connected with the first blocking block (19) through a first spring sleeve (20), the first spring sleeve (20) is sleeved on the surface of the first guide rod (3), a second blocking block (18) is fixedly connected with the top end of the second guide rod (9), the second sliding block (8) is connected with the second blocking block (18) through a second spring sleeve (13), and the second spring sleeve (13) is sleeved on the surface of the second guide rod (9);
the back of the first sliding block (4) is fixedly connected with a first telescopic sleeve (14), the inner wall of the left side of the first telescopic sleeve (14) is fixedly connected with a first buffer spring (15), one end of the first buffer spring (15) far away from the inner wall of the left side of the first telescopic sleeve (14) is fixedly connected with a first brake plate (11), the surface of the first brake plate (11) is movably connected with a sliding groove on the inner wall of the first telescopic sleeve (14), the back of the second sliding block (8) is fixedly connected with a second telescopic sleeve (16), the right inner wall of the second telescopic sleeve (16) is fixedly connected with a second buffer spring (17), one end of the second buffer spring (17) far away from the inner wall of the right side of the second telescopic sleeve (16) is fixedly connected with a second brake plate (10), the surface of the second brake plate (10) is movably connected with the sliding groove on the inner wall of the second telescopic sleeve (16).
2. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the inside of the base plate (2) is provided with a through hole penetrating from the top end to the bottom end, and the through hole is matched with the size of the output end of the motor.
3. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein two ends of the linkage rod (6) are provided with limit blocks.
4. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the first telescopic sleeve (14) is provided with a sliding slot extending from the top inner wall to the top inner wall, and is provided with a sliding slot extending from the bottom inner wall to the bottom inner wall.
5. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the second telescopic sleeve (16) is provided with a sliding slot extending from the top inner wall to the top inner wall, and a sliding slot extending from the bottom inner wall to the bottom inner wall.
6. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the right end of the first brake plate (11) is provided with a semicircular-like groove.
7. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the left end of the second brake plate (10) is provided with a semicircular-like groove.
8. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the first fixing block (5) is provided with a through hole penetrating from left end to right end.
9. The motor protection mechanism for the electric lifting table as claimed in claim 1, wherein the second fixing block (7) is provided with a through hole penetrating from left end to right end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922013563.5U CN211151733U (en) | 2019-11-20 | 2019-11-20 | Motor protection mechanism for electric lifting table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922013563.5U CN211151733U (en) | 2019-11-20 | 2019-11-20 | Motor protection mechanism for electric lifting table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151733U true CN211151733U (en) | 2020-07-31 |
Family
ID=71770883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922013563.5U Active CN211151733U (en) | 2019-11-20 | 2019-11-20 | Motor protection mechanism for electric lifting table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211151733U (en) |
-
2019
- 2019-11-20 CN CN201922013563.5U patent/CN211151733U/en active Active
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