CN220908324U - Gate protection device - Google Patents
Gate protection device Download PDFInfo
- Publication number
- CN220908324U CN220908324U CN202322443955.1U CN202322443955U CN220908324U CN 220908324 U CN220908324 U CN 220908324U CN 202322443955 U CN202322443955 U CN 202322443955U CN 220908324 U CN220908324 U CN 220908324U
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- shell
- base
- gate
- screw
- protection device
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- 230000006835 compression Effects 0.000 claims abstract description 16
- 238000007906 compression Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 230000001960 triggered effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a gate protection device, which comprises a gate and a screw hoist for driving the gate to lift, wherein a base of the screw hoist is arranged on the ground through bolts; the device comprises a base, a bolt, a nut, a first shell, a second shell, a limiting device and a first shell, wherein the limiting device comprises a compression spring arranged between the nut of the bolt and the base, the first shell is arranged between the compression spring and the nut, the second shell is arranged between the compression spring and the base, and the second shell is embedded in the first shell; the side part of the first shell is provided with a limit switch electrically connected with the screw type headstock gear, and the movable end of the limit switch faces the base. Due to the adoption of the technical scheme, compared with the prior art, the screw rod bending deformation prevention device can prevent the screw rod from bending and deforming, ensure the normal operation of the screw rod type headstock gear, and provide protection for the compression spring by the first shell and the second shell which are nested up and down. In addition, the lower end of the gate can be tightly closed.
Description
Technical Field
The utility model relates to the field of hydraulic engineering equipment, in particular to a gate protection device.
Background
The existing screw type hoist gate generally drives a screw to rotate through a hoist motor to lift or lower the gate. If the gate is not timely stopped to open and close the motor after being completely closed, or sundries exist at the bottom of the gate, the gate can stop moving at the moment, the power provided by the motor can act on the hoist through the gate and the screw in a reverse direction, so that the screw is easy to bend and deform, even the screw hoist is damaged, the continuous operation cannot be realized, potential safety hazards are caused, and the normal operation of a culvert gate system is influenced.
Disclosure of Invention
The application provides the gate protection device, so that the problems that the screw rod is easy to bend and deform and even the hoist is damaged, the operation cannot be continued, potential safety hazard is caused, and the normal operation of a culvert gate system is influenced under the condition that the motor is not stopped in time after the existing gate is completely closed are solved.
In order to achieve the above purpose, the present application adopts the following technical scheme.
The gate protection device comprises a gate and a screw hoist for driving the gate to lift, wherein a base of the screw hoist is arranged on the ground through bolts; the device comprises a bolt, a base, a first shell, a second shell, a limiting device and a first shell, wherein the limiting device comprises a compression spring arranged between a nut of the bolt and the base, the first shell is arranged between the compression spring and the nut, the second shell is arranged between the compression spring and the base, and the second shell is embedded in the first shell; the side part of the first shell is provided with a limit switch electrically connected with the screw type headstock gear, and the movable end of the limit switch faces the base.
Through the structure, when the screw hoist is not stopped in time after the gate is completely closed or sundries exist at the bottom of the gate to influence the lowering of the gate, the seat plate is reversely jacked up by the gate, so that the compression spring is arranged between the screw cap and the base in a pressing mode, the first shell moves towards the direction close to the seat plate at the moment, the limit switch is triggered, and a lower limit protection signal of the gate is provided (when the limit switch is triggered, the screw hoist is immediately stopped). Therefore, the screw rod is prevented from bending and deforming, and the normal operation of the screw rod type headstock gear is ensured. In addition, the lower end of the gate can be tightly closed.
Preferably, the bolts are provided with a plurality of bolts, each bolt is provided with a limiting device, and at least two limiting switches of the limiting devices are electrically connected with the screw type headstock gear after being connected in series.
Preferably, the bolts are provided with four bolts, the four bolts are respectively positioned at four corners of the base, each bolt is provided with a limiting device, and two limiting switches positioned on the diagonal of the base are electrically connected with the screw type headstock gear after being connected in series.
Preferably, the bolts are provided with four bolts, the four bolts are respectively positioned at four corners of the base, each bolt is provided with a limiting device, and the four limiting switches are electrically connected with the screw type opening and closing device after being connected in series.
Preferably, the first housing is cylindrical with a downward opening, and the second housing is cylindrical with an upward opening. The first housing and the second housing, nested one above the other, provide protection for the compression spring.
Preferably, the distance between the movable end of the limit switch and the base is 5-10mm.
Preferably, the distance between the top of the first housing and the bottom of the second housing is 20-25mm.
Preferably, a flat pad is provided between the first housing and the nut.
Specifically, the screw hoist comprises a screw and a hoist motor, and the limit switch is electrically connected with the hoist motor.
The application has at least the following technical effects or advantages:
1. prevent the screw rod from bending deformation, ensure the normal operation of the screw hoist.
2. The first housing and the second housing, nested one above the other, provide protection for the compression spring.
3. Ensuring the lower end of the gate to be tightly closed.
Drawings
FIG. 1 is a schematic view of a gate protection device according to an embodiment of the present application;
Fig. 2 is an enlarged schematic view of a detail of a bolt according to an embodiment of the present application.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Example 1
Referring to fig. 1 and 2, a gate protection device includes a gate 1 and a screw hoist for driving the gate 1 to lift. The screw hoist comprises a screw 21 and a hoist motor 22.
The base 23 of the screw hoist is mounted on the ground by bolts 3. Four bolts 3 are arranged, the four bolts 3 are respectively positioned at four corners of the base 23, and each bolt 3 is provided with a limiting device.
The limiting device comprises a compression spring 4 arranged between a nut 31 of a bolt 3 and a base 23, a flat pad 53 and a first shell 51 are arranged between the compression spring 4 and the nut 31, a second shell 52 is arranged between the compression spring 4 and the base 21, the first shell 51 is in a cylinder shape with a downward opening, the second shell 52 is in a cylinder shape with an upward opening, and the second shell 52 is embedded in the first shell 51.
The lateral part of the first shell 51 is provided with a limit switch 6 electrically connected with the on-off motor 22, the movable end of the limit switch 6 faces the base 23, and the distance between the movable end of the limit switch 6 and the base 23 is 5-10mm. The distance between the top of the first housing 51 and the bottom of the second housing 52 is 20-25mm.
As a preferred solution, two limit switches 6 located on the diagonal of the base 23 are connected in series and then electrically connected to the on-off motor 22. Of course, the four limit switches 6 may be connected in series and then electrically connected to the on-off motor 22. In this way, when the movable end of any limit switch 6 contacts the base 23 and is disconnected, the opening and closing motor 22 can be immediately stopped, so that the reliability of gate control is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (9)
1. The gate protection device comprises a gate and a screw hoist for driving the gate to lift, wherein a base of the screw hoist is arranged on the ground through bolts; the method is characterized in that: the device comprises a bolt, a base, a first shell, a second shell, a limiting device and a first shell, wherein the limiting device comprises a compression spring arranged between a nut of the bolt and the base, the first shell is arranged between the compression spring and the nut, the second shell is arranged between the compression spring and the base, and the second shell is embedded in the first shell; the side part of the first shell is provided with a limit switch electrically connected with the screw type headstock gear, and the movable end of the limit switch faces the base.
2. The gate protection device of claim 1, wherein: the bolt is provided with a plurality of bolts, each bolt is provided with a limiting device, and at least two limiting switches of the limiting devices are connected in series and then electrically connected with the screw type headstock gear.
3. The gate protection device of claim 2, wherein: the four bolts are respectively positioned at four corners of the base, each bolt is provided with a limiting device, and two limiting switches positioned on the diagonal of the base are electrically connected with the screw type opening and closing machine after being connected in series.
4. The gate protection device of claim 2, wherein: the four bolts are respectively positioned at four corners of the base, each bolt is provided with a limiting device, and the four limiting switches are connected in series and then electrically connected with the screw type headstock gear.
5. The gate protection device of claim 1, wherein: the first shell is cylindrical with a downward opening, and the second shell is cylindrical with an upward opening.
6. The gate protection device of any one of claims 1-5, wherein: the distance between the movable end of the limit switch and the base is 5-10mm.
7. The gate protection device of claim 5, wherein: the distance between the top of the first housing and the bottom of the second housing is 20-25mm.
8. The gate protection device of any one of claims 1-5, wherein: a flat pad is arranged between the first shell and the nut.
9. The gate protection device of any one of claims 1-5, wherein: the screw type headstock gear comprises a screw and a headstock motor, and the limit switch is electrically connected with the headstock motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322443955.1U CN220908324U (en) | 2023-09-08 | 2023-09-08 | Gate protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322443955.1U CN220908324U (en) | 2023-09-08 | 2023-09-08 | Gate protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220908324U true CN220908324U (en) | 2024-05-07 |
Family
ID=90905736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322443955.1U Active CN220908324U (en) | 2023-09-08 | 2023-09-08 | Gate protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220908324U (en) |
-
2023
- 2023-09-08 CN CN202322443955.1U patent/CN220908324U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |