CN210629258U - Linear electric push rod - Google Patents
Linear electric push rod Download PDFInfo
- Publication number
- CN210629258U CN210629258U CN201921506117.1U CN201921506117U CN210629258U CN 210629258 U CN210629258 U CN 210629258U CN 201921506117 U CN201921506117 U CN 201921506117U CN 210629258 U CN210629258 U CN 210629258U
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- push rod
- cylinder body
- protecgulum
- lead screw
- cavity
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Abstract
The utility model discloses a linear electric push rod, which comprises a motor, a cylinder body and a front cover, back lid and push rod, the cylinder body both ends are located to protecgulum and back lid difference lid, be equipped with the mount pad in the cylinder body, the protecgulum, the back lid, cylinder body and mount pad cooperation form first cavity and second cavity, first cavity is equipped with two travel switch with push rod looks adaptation, install lead screw and screw nut in the push rod, the motor is installed in the second cavity, the output of motor and the tip fixed connection of lead screw, the annular has been seted up on the bottom lateral surface of push rod, be equipped with the spout in the protecgulum, it is equipped with the latch segment to slide in the spout, the latch segment includes locking portion and unblock portion, the terminal surface of locking portion is arc, locking portion and annular locking cooperation, set up the through-hole with the spout intercommunication on the protecgulum, unblock portion wear out the protecgulum outside and with through-hole sliding fit. The utility model discloses still possess simple structure, bear the advantage of dynamic height when having possessed self-locking function.
Description
Technical Field
The utility model relates to an electric putter technical field, in particular to sharp electric putter.
Background
The electric push rod is an electric driving device which converts the rotary motion of a motor into the linear reciprocating motion of the push rod, and is used as an execution machine in various simple or complex process flows so as to realize remote control, centralized control or automatic control. The motion driving unit is widely applied to the industries of household appliances, kitchen ware, medical appliances, automobiles and the like. In the existing electric push rod, after the power of a motor is reduced by a gear box, the power is converted into linear motion of a screw rod by a screw rod nut pair to realize driving, so that the screw rod is driven to rotate, and the screw rod drives a lifting nut to move forwards or backwards, so that the push rod moves forwards or backwards; above-mentioned structural design's electric putter because the bearing load is connected to the connector on the push rod, after the motor rises the push rod, the phenomenon that the lead screw received the automatic gliding of bearing capacity can appear, this mechanical safety that can greatly reduced motor.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's defect and not enough, provide a sharp electric putter, possessed simple structure and the high advantage of bearing capacity, and possessed self-locking function.
The utility model provides a technical scheme that its technical problem adopted is: a linear electric push rod comprises a motor, a cylinder body, a front cover, a rear cover and a push rod, wherein the front cover and the rear cover are respectively arranged at two ends of the cylinder body in a covering manner, a mounting seat is arranged in the cylinder body, the front cover, the cylinder body and the mounting seat are matched to form a first cavity, the rear cover, the cylinder body and the mounting seat are matched to form a second cavity, the push rod is movably arranged in the first cavity, the first cavity is provided with two travel switches matched with the push rod, a lead screw and a lead screw nut are arranged in the push rod, the motor is arranged in the second cavity, the output end of the motor is fixedly connected with the end part of the lead screw, an annular groove is formed in the outer side surface of the bottom end of the push rod, a sliding groove is formed in the front cover, a locking block is slidably arranged in the sliding groove and comprises a locking part and an unlocking part, and the, the locking portion with the annular locking cooperation, set up on the protecgulum with the through-hole of spout intercommunication, the portion of separating to lock is worn out the protecgulum outside and with through-hole sliding fit, the locking portion with it is equipped with the spring to support between the protecgulum.
Furthermore, a pressing plate is arranged between the front cover and the cylinder body and is annular, the inner diameter of the pressing plate is equal to the outer diameter of the push rod, and the outer diameter of the pressing plate is equal to the outer diameter of the cylinder body, so that the locking block can be conveniently installed.
Furthermore, the rear cover is provided with a connecting lug, so that the electric push rod can be conveniently installed.
Furthermore, the top end of the push rod axially extends out of the cylinder body and is in sliding fit with the front cover, the lead screw nut is fixed at the bottom end of the push rod, and a through hole is formed in the top end of the push rod.
Further, screw nut with inside wall sliding fit in the cylinder body, screw nut with lead screw looks adaptation, the tip of lead screw extend to in the second cavity and with mount pad normal running fit.
Furthermore, the end part of the lead screw is sleeved with a bearing, and the bearing is matched with the mounting seat, so that the running stability of the lead screw is improved.
Furthermore, the output end of the motor is fixedly connected with the end part of the lead screw through a coupler, so that the lead screw is conveniently connected with the motor.
Furthermore, travel switches are electrically connected with the motor, the travel switches are respectively arranged at the limit positions of the screw nut, buttons are arranged on the travel switches, and a triggering portion used for triggering the buttons is arranged on the screw nut.
The utility model has the advantages that: the annular groove is formed in the outer side face of the bottom end of the push rod, the sliding groove is formed in the front cover, the locking block is arranged in the sliding groove in a sliding mode and comprises a locking portion and an unlocking portion, the end face of the locking portion is arc-shaped, the locking portion is in locking fit with the annular groove, the through hole communicated with the sliding groove is formed in the front cover, the unlocking portion penetrates out of the outer side of the front cover and is in sliding fit with the through hole, a spring is arranged between the locking portion and the front cover in a supporting mode, when the push rod moves upwards, the locking portion is supported on the outer side face under the elastic force of the spring, when the annular groove moves to the position of the locking block, the locking portion is clamped into the annular groove under the elastic force of the spring to lock the position of the push rod, the problem that the push rod slides downwards in the prior art is solved, the bearing capacity of the push rod is enhanced, when the, thereby realizing the purpose of self-locking the push rod; in general, the self-locking mechanism has the advantages of simple structure and high bearing capacity while having a self-locking function.
Drawings
Fig. 1 is the overall sectional schematic diagram of the utility model.
Fig. 2 is an exploded view of the front cover of the present invention.
Fig. 3 is a schematic view of the locking state of the present invention.
Shown in the figure: 1-a motor; 2-cylinder body; 21-a mounting seat; 3-front cover; 31-a chute; 32-a first via; 4-rear cover; 41-connecting lugs; 5-a push rod; 51-a ring groove; 52-second via; 6-a first chamber, 7-a second chamber; 8-a travel switch; 9-a lead screw; 10-lead screw nut; 101-a trigger; 11-a locking block; 111-a locking portion; 112-an unlocking part; 12-a spring; 13-a platen; 14-a bearing; 15-coupling.
Detailed Description
For a more intuitive and complete understanding of the technical solution of the present invention, the following non-limiting characteristic description is now performed by combining the drawings of the present invention:
as shown in fig. 1 to 3, a linear electric push rod comprises a motor 1, a cylinder body 2, a front cover 3, a rear cover 4 and a push rod 5, wherein the front cover 3 and the rear cover 4 are respectively covered at two ends of the cylinder body 2, an installation seat 21 is arranged in the cylinder body 2, the front cover 3, the cylinder body 2 and the installation seat 21 are matched to form a first chamber 6, the rear cover 4, the cylinder body 2 and the installation seat 21 are matched to form a second chamber 7, the push rod 5 is movably arranged in the first chamber 6, two stroke switches 8 matched with the push rod 5 are arranged in the first chamber 6, a lead screw 9 and a lead screw nut 10 are arranged in the push rod 5, the motor 1 is arranged in the second chamber 7, an output end of the motor 1 is fixedly connected with an end of the lead screw 9, an annular groove 51 is formed on an outer side surface of a bottom end of the push rod 5, a sliding groove 31 is arranged in the front cover 3, a locking, the end face of the locking portion 111 is arc-shaped, the locking portion 111 is in locking fit with the annular groove 51, the front cover 3 is provided with a first through hole 32 communicated with the sliding groove 31, the unlocking portion 112 penetrates through the outer side of the front cover 3 and is in sliding fit with the first through hole 32, and the spring 12 is arranged between the locking portion 111 and the front cover 3 in an abutting mode.
Specifically, the annular groove 51 is provided with two grooves side by side along the axial direction, and correspondingly, the locking portion 111 is also provided with two corresponding grooves, so that the push rod 5 is locked more tightly and firmly by the locking block 11, and the problem of sliding is avoided.
A pressure plate 13 is arranged between the front cover 3 and the cylinder body 2, the pressure plate 13 is annular, the inner diameter of the pressure plate 13 is equal to the outer diameter of the push rod 5, and the outer diameter of the pressure plate 13 is equal to the outer diameter of the cylinder body 2; preferably, the pressing plate 13 is installed inside the front cover 3, and the locking block 11 and the spring 12 are installed inside the sliding groove 31, so as to prevent falling and facilitate operation.
Specifically, when the electric push rod is installed, the electric push rod is installed by connecting the connecting lug 41 arranged on the rear cover 4 and the second through hole 52 arranged at the top end of the connecting push rod 5.
The top end of the push rod 5 extends out of the cylinder body 2 along the axial direction and is in sliding fit with the front cover 3, and the screw nut 10 is fixed at the bottom end of the push rod 5. Screw nut 10 and 2 inside wall sliding fit of cylinder body, screw nut 10 and lead screw 9 looks adaptations, and the tip of lead screw 9 extends to in the second cavity 7 and with mount pad 21 normal running fit. The end of the screw 9 is sleeved with a bearing 14, and the bearing 14 is matched with the mounting seat 21.
The output end of the motor 1 is fixedly connected with the end part of the screw rod 9 through a coupler 15.
Preferably, the travel switches 8 are an upper limit switch and a lower limit switch, respectively, and the locking portion 111 is just snapped into the ring groove 51 when the button of the upper limit switch is triggered by the trigger portion 101.
The utility model discloses a concrete theory of operation as follows: when the push rod 5 needs to extend out, the motor 1 is started to drive the lead screw 9 to rotate, so that the lead screw nut 10 rotates relatively, the push rod 5 extends upwards, when the button of the upper limit switch is triggered by the trigger part 101, the locking part 111 is just clamped into the annular groove 51 to lock the push rod 5, and the push rod 5 does not slide down due to load; when the push rod 5 needs to be restored to the original position, the unlocking part 112 is pulled to overcome the elastic force of the spring 12, the locking part 111 is made to exit from the annular groove 51, so that the push rod 5 is unlocked, meanwhile, the motor is started to run reversely, the push rod 5 is made to move downwards, and when the button of the lower limit switch is triggered by the trigger part 101, the motor 1 stops running.
The above is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles in accordance with the claims of the present invention are included in the claims of the present invention.
Claims (8)
1. The utility model provides a straight line electric putter, includes motor (1), cylinder body (2), protecgulum (3), back lid (4) and push rod (5), protecgulum (3) and back lid (4) are covered respectively and are located cylinder body (2) both ends, be equipped with mount pad (21) in cylinder body (2), protecgulum (3), cylinder body (2) and mount pad (21) cooperation form first cavity (6), back lid (4), cylinder body (2) and mount pad (21) cooperation form second cavity (7), push rod (5) activity sets up in first cavity (6), be equipped with in first cavity (6) with two travel switch (8) of push rod (5) looks adaptation, install lead screw (9) and lead screw nut (10) in push rod (5), motor (1) install in second cavity (7), the output of motor (1) with the tip fixed connection of lead screw (9), its characterized in that: annular (51) have been seted up on the bottom lateral surface of push rod (5), be equipped with spout (31) in protecgulum (3), it is equipped with latch segment (11) to slide in spout (31), latch segment (11) are including locking portion (111) and unblock portion (112), the terminal surface of locking portion (111) is arc, locking portion (111) with annular (51) locking cooperation, seted up on protecgulum (3) with first through-hole (32) of spout (31) intercommunication, it wears out to unblock portion (112) the protecgulum (3) outside and with first through-hole (32) sliding fit, locking portion (111) with it is equipped with spring (12) to support between protecgulum (3).
2. A linear electric putter as claimed in claim 1, characterized in that: a pressing plate (13) is arranged between the front cover (3) and the cylinder body (2), the pressing plate (13) is annular, the inner diameter of the pressing plate (13) is equal to the outer diameter of the push rod (5), and the outer diameter of the pressing plate (13) is equal to the outer diameter of the cylinder body (2).
3. A linear electric putter as claimed in claim 1, characterized in that: the rear cover (4) is provided with a connecting lug (41).
4. A linear electric putter as claimed in claim 1, characterized in that: the top end of the push rod (5) extends out of the cylinder body (2) along the axial direction and is in sliding fit with the front cover (3), the lead screw nut (10) is fixed at the bottom end of the push rod (5), and a second through hole (52) is formed in the top end of the push rod (5).
5. The linear electric putter of claim 4, wherein: screw nut (10) with cylinder body (2) inside wall sliding fit, screw nut (10) with lead screw (9) looks adaptation, the tip of lead screw (9) extend to in second cavity (7) and with mount pad (21) normal running fit.
6. The linear electric putter of claim 5, wherein: the end part of the lead screw (9) is sleeved with a bearing (14), and the bearing (14) is matched with the mounting seat (21).
7. A linear electric putter as claimed in claim 1, characterized in that: the output end of the motor (1) is fixedly connected with the end part of the lead screw (9) through a coupler (15).
8. A linear electric putter as claimed in claim 1, characterized in that: travel switch (8) all with motor (1) electric connection, travel switch (8) set up respectively in the extreme position of screw nut (10), all be equipped with the button on travel switch (8), be equipped with on screw nut (10) and be used for triggering trigger portion (101) of button.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506117.1U CN210629258U (en) | 2019-09-11 | 2019-09-11 | Linear electric push rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921506117.1U CN210629258U (en) | 2019-09-11 | 2019-09-11 | Linear electric push rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210629258U true CN210629258U (en) | 2020-05-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921506117.1U Active CN210629258U (en) | 2019-09-11 | 2019-09-11 | Linear electric push rod |
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| CN (1) | CN210629258U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113819164A (en) * | 2021-10-13 | 2021-12-21 | 中南大学 | Steel wire braking device |
| CN114465439A (en) * | 2022-01-12 | 2022-05-10 | 深圳市克洛诺斯科技有限公司 | Linear electric motor counter weight device |
| CN114552864A (en) * | 2022-02-28 | 2022-05-27 | 内蒙古工业大学 | Multi-shaft screw sliding table with anti-blocking function |
| CN115465649A (en) * | 2021-06-10 | 2022-12-13 | 吴震洋 | Push rod device |
| CN116495201A (en) * | 2023-02-14 | 2023-07-28 | 中国科学院空间应用工程与技术中心 | On-orbit locking release mechanism and on-orbit locking release experimental device |
-
2019
- 2019-09-11 CN CN201921506117.1U patent/CN210629258U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115465649A (en) * | 2021-06-10 | 2022-12-13 | 吴震洋 | Push rod device |
| WO2022258032A1 (en) * | 2021-06-10 | 2022-12-15 | 吴震洋 | Push rod device |
| CN113819164A (en) * | 2021-10-13 | 2021-12-21 | 中南大学 | Steel wire braking device |
| CN114465439A (en) * | 2022-01-12 | 2022-05-10 | 深圳市克洛诺斯科技有限公司 | Linear electric motor counter weight device |
| CN114552864A (en) * | 2022-02-28 | 2022-05-27 | 内蒙古工业大学 | Multi-shaft screw sliding table with anti-blocking function |
| CN116495201A (en) * | 2023-02-14 | 2023-07-28 | 中国科学院空间应用工程与技术中心 | On-orbit locking release mechanism and on-orbit locking release experimental device |
| CN116495201B (en) * | 2023-02-14 | 2023-11-21 | 中国科学院空间应用工程与技术中心 | On-orbit locking release mechanism and on-orbit locking release experimental device |
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