CN212247978U

CN212247978U - Manual lifting device of electric lifting ground pillar and electric lifting ground pillar

Info

Publication number: CN212247978U
Application number: CN202020637583.XU
Authority: CN
Inventors: 刘润根
Original assignee: Bisen Smart Access Co ltd
Current assignee: Bisen Smart Access Co ltd
Priority date: 2020-04-24
Filing date: 2020-04-24
Publication date: 2020-12-29
Anticipated expiration: 2030-04-24

Abstract

The utility model relates to a lifting device and adopt this lifting device's lift ground post for in the ground post goes up and down, especially this lifting device is manual elevating gear. A manual lifting device of an electric lifting ground column and the electric lifting ground column comprise a fixed joint and a transmission nut, wherein the top of the fixed joint is a manual operation part and is detachably connected with a column body through a fastener; under the action of external force, the fixed joint drives the transmission nut to rotate. The utility model has the advantages of as follows: 1. simple structure and convenient operation. 2. The motor is arranged below, so that the phenomenon that the head of the lifting ground pillar body is heavy and the feet are light is avoided.

Description

Manual lifting device of electric lifting ground pillar and electric lifting ground pillar

Technical Field

The utility model relates to a lifting device and adopt this lifting device's lift ground post for in the ground post goes up and down, especially this lifting device is manual elevating gear.

Background

The lifting ground post is a security product, is pre-buried at a specific position, has a lifting function, and can prevent vehicles from forcibly passing through, the lifting ground post is driven by electromechanical integration and a machine core on the market at present, the motor is arranged under the lifting ground post, the emergency measures in power failure are all in a lifting mode by adopting a standby power supply, but often in the using process, the motor is one of the most possibly damaged parts, the standby power supply is still adopted to lead to the emergency descending, so the emergency measures cannot be taken, and in some specific emergency environments, the lifting ground post cannot be descended in an emergency manner to possibly cause great influence.

Disclosure of Invention

The utility model aims at solving the problem that exists among the prior art, provide one kind under the circumstances that the ground post had a power failure or the motor damaged, make the cylinder go up and down through pure mechanical hand, play the manual elevating gear of the electric lift ground post of emergent effect.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a manual lifting device of an electric lifting ground column comprises a fixed joint and a transmission nut, wherein the top of the fixed joint is a manual operation part and is detachably connected with a column body through a fastener; under the action of external force, the fixed joint drives the transmission nut to rotate.

Preferably, a through hole I is formed along the radial direction of the fixed joint, and the fastener penetrates through the through hole I to be fixedly connected with the locking plate on the column body; a through hole II is formed in the locking plate, and the bottom of the fixed joint penetrates through the through hole II to be fixedly connected with the top of the telescopic pipe.

Preferably, the locking plate is connected and fixed with the column body by welding or fastening piece connection.

Preferably, a bearing is mounted between the locking plate and the fixed joint.

Preferably, the hand-operated device further comprises a hand crank, and the hand crank is connected with the manual operation part.

Preferably, the manual operating part is an opening matched with the hand crank.

Preferably, the fasteners are pins and cotters.

Another object of the utility model is to provide an electric lift ground post, including cylinder, motor, install as above in the cylinder manual lifting device.

The working principle is as follows: when power is off or the motor fails, the column panel is opened, the pin shaft and the cotter pin are removed, the hand crank is inserted into the opening on the fixed joint, the hand crank is rotated, the fixed joint drives the transmission nut on the telescopic pipe to rotate, the transmission nut can move up and down on the screw rod under the action of the hand crank, and therefore the up-and-down motion of the lifting ground column is achieved; the motor is fixed, so the screw rod cannot rotate; under normal conditions, the transmission nut cannot rotate under the action of the pin shaft and the split pin, and when the motor output shaft drives the screw rod to rotate, the transmission nut can also move up and down on the screw rod.

Compared with the prior art, the utility model has the advantages of as follows:

1. simple structure and convenient operation.

2. The motor is arranged below, so that the phenomenon that the head of the lifting ground pillar body is heavy and the feet are light is avoided.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is an enlarged view of portion B of FIG. 1;

FIG. 4 is a view of FIG. 1 with the cylinder raised;

in the figure, 1, a column; 2. a telescopic pipe; 3. a screw rod; 4. Fixing the joint; 5. a column panel; 6. a locking plate; 7. a connecting seat; 8. a pin shaft; 9. a cotter pin; 10. a sheath; 11. a sheath end cap; 12. a bearing; 13. oil sealing; 14. a hand crank; 15. a motor; 16. a motor cover; 17. a drive nut; 18. a drive shaft; 19. a positioning column; 20. a foundation box; 21. a base plate flange; 22. a limiting block; 23. oil sealing; 24 pin shafts; 25. a motor drive plate; 26. a sheath flange.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings 1-4: an electric lifting ground column comprises a column body 1, a column body panel 5, a screw rod 3, an extension tube 2, a sheath 10, a manual lifting device and a motor 15.

As shown in fig. 1-2, a locking plate 6 is fixed on the upper part of the column body, and a through hole II is formed in the center of the locking plate 6; a connecting seat 7 is fixed on the locking plate 6 through a bolt, and the connecting seat 7 is L-shaped; the manual lifting device comprises a fixed joint 4, a pin shaft 8, a cotter pin 9, a hand crank 14 and a transmission nut 17, wherein a through hole I is formed in the radial direction of the fixed joint 4, the through hole I is opposite to a through hole III formed in a connecting seat 7, the two connecting seats 7 are respectively arranged on two sides of the fixed joint 4, the pin shaft 8 sequentially penetrates through the through hole III, the through hole I and the through hole III, and penetrates through a hole in the end part of the pin shaft 8 through the cotter pin 9 to limit the fixed joint 4 on the column body 1; the top of the fixed joint 4 is provided with an opening, the opening is matched with the end part of the hand crank 14, the bottom of the fixed joint 4 penetrates through the through hole II to be connected and fixed with the top of the telescopic pipe 2, the bottom of the telescopic pipe 2 is in threaded connection with the screw rod 3 through the transmission nut 17, and the screw rod 3 is connected with an output shaft of a motor 15 fixed on the ground pillar foundation box 20.

In order to reduce the friction between the fixed joint 4 and the locking plate 6 during rotation and also to better position the fixed joint 4, a bearing 12 is mounted between the locking plate 6 and the fixed joint 4, as shown in fig. 2.

As shown in fig. 1 and 4, the foundation box 20 is an outer cylinder of a lifting ground pillar, the column 1 is an inner cylinder of the lifting ground pillar, the column 1 ascends or descends relative to the foundation box 20, and a stopper 22 is installed at the bottom of the column 1 to limit the column 1 to move downwards continuously.

3 bottoms of lead screw are fixed with the output shaft of motor 15, and it is whole to penetrate in the expansion pipe, be located the central line of expansion pipe 2, under normal conditions, the motor drives lead screw 3 and rotates, for the protection, spacing expansion pipe 2, at its externally mounted sheath 10, the top of sheath 10 sets up sheath end cover 11, oil blanket 13, the sheath bottom is fixed with motor cover 16 through sheath flange 26, motor cover 16 top is provided with oil blanket 23, can play the sealing effect, prevent that other debris such as external sewage from getting into inside the motor cover.

As shown in fig. 1 and 3, the motor 15 is arranged at the bottom and is installed in a lifting ground pillar foundation box 20, the motor cover 16 comprises a movement upper cover and a movement lower cover, the motor 15 is wrapped in the motor cover, and the movement lower cover is fixed with the foundation box through a positioning column 19 and a bottom plate flange 21; the output shaft of the motor is fixed with the bottom of the screw rod 3 through a transmission shaft 18 and a pin shaft 24, and the transmission shaft 18 is connected with the upper cover of the machine core through a bearing.

When power failure or motor failure occurs, the column panel 5 is opened, the pin shaft 8 and the cotter pin 9 are removed, the hand crank 14 is inserted into the opening on the fixed joint 4, the hand crank 14 is rotated, the fixed joint 4 drives the transmission nut 17 on the telescopic pipe 2 to rotate, the transmission nut 17 can realize up-and-down movement on the screw rod 3 under the action of the hand crank 14, and therefore up-and-down movement of the lifting ground column is realized; the motor is fixed, so the screw rod cannot rotate; under normal conditions, the transmission nut 17 cannot rotate under the action of the pin shaft and the split pin, and when the output shaft of the motor drives the screw rod to rotate, the transmission nut can also move up and down on the screw rod.

In the case of a dc brushless motor, the motor drive board 25 may be provided inside the motor cover 16.

The above embodiments are merely preferred embodiments of the present invention, and do not limit the present invention. It will be appreciated by those skilled in the art that any extension, modification or the like without departing from the principles of the invention is within the scope of the invention.

Claims

1. The utility model provides a manual elevating gear of electric lift ground post which characterized in that: the top of the fixed joint is a manual operation part and is detachably connected with the column body through a fastener, the bottom of the fixed joint is fixedly connected with the top of the telescopic pipe, the bottom of the telescopic pipe is in threaded connection with a screw rod through the transmission nut, and the screw rod is connected with an output shaft of a motor fixed in the foundation box of the ground column; under the action of external force, the fixed joint drives the transmission nut to rotate.

2. The manual lifting device of the electric lifting ground pillar according to claim 1, characterized in that: a through hole I is formed along the radial direction of the fixed joint, and a fastener penetrates through the through hole I to be connected and fixed with a locking plate on the column body; a through hole II is formed in the locking plate, and the bottom of the fixed joint penetrates through the through hole II to be fixedly connected with the top of the telescopic pipe.

3. The manual lifting device of the electric lifting ground pillar according to claim 2, characterized in that: the locking plate is connected and fixed with the column body in a welding or fastener connecting mode.

4. The manual lifting device of the electric lifting ground pillar according to claim 2, characterized in that: and a bearing is arranged between the locking plate and the fixed joint.

5. The manual lifting device of the electric lifting ground pillar according to claim 1, characterized in that: the hand crank is connected with the manual operation part.

6. The manual lifting device of the electric lifting ground pillar according to claim 4, characterized in that: the manual operation part is provided with an opening matched with the hand crank.

7. The manual lifting device of the electric lifting ground pillar according to claim 1, characterized in that: the fasteners are pin shafts and cotter pins.

8. The utility model provides an electric lift ground post, includes cylinder, motor, its characterized in that: a manual lifting device as claimed in any one of claims 1 to 6 is mounted in the column.