JP3027114U - Gate lowering device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a self-weight lowering device capable of promptly lowering the self-weight of a sluice gate in an emergency and easily attached to an existing sluice gate opening / closing device. SOLUTION: In an electric rack type opening / closing machine having an electric mechanism for opening and closing a water gate and a weight lowering operation lever for lowering the water gate by its own weight, the weight lowering operation lever 1 includes:
A float provided with a weight 10 for urging the self-weight lowering operation lever 1 in the direction of self-weight lowering, a self-weight lowering arc cam 9 provided on the weight 10, and a self-weight lowering release pin 14 engaging with the self-weight lowering arc cam 9. The link material 13 is provided so that the biasing force is not applied at all times, and the float link material 1
3, the float 17 that rises according to the outside water level of the sluice is interlocked, and when the float 17 rises to a certain water level, the engagement between the dead weight release pin 14 of the float link member 13 and the dead weight arc cam 9 is released. Lever 1
Is configured to move in the direction of its own weight descent.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a gate lowering device that closes a floodgate by its own weight in an emergency.

[0002]

[Prior art]

 An electric rack-type switch is used to open and close the sluice gate. The functions of this switch include electric and manual opening and closing, and self-weight lowering (manual) operation by the weight of the sluice gate to quickly close the sluice gate in an emergency. Among them, when closing the sluice gate in an emergency, the descent speed is high, and the sluice gate can be descended quickly even in the event of a power failure, but an electric rack-type switch is installed to perform the descent operation by its own weight. The operator had to go to the place and operate it.

The conditions for using the self-weight lowering function provided in the electric rack-type switch are used in an emergency such as emergency, flooding, and power outage, and when closing the sluice gate. At the stage where the operator goes to the site and carries out the gravity descent operation, the operator must go to the site in a dangerous situation. In addition, it may take some time before going to the site, which may cause a delay in operation in an emergency.

In order to solve such a problem, Japanese Patent Publication No. 4-65930 has a float for detecting the water level, and an electric / manual switching clutch for raising and lowering the float and lowering the floodgate by its own weight. There is disclosed a device in which the clutch is disengaged to lower the floodgate by its own weight when the water level rises and the float rises.

[0005]

[Problems to be solved by the device]

 However, in this device, the float and the clutch are interlocked, so when the water level undulates and rises and falls, the water gate also repeatedly descends and stops, and unless the water level is constantly rising, the water gate cannot be fully closed. There was a problem that the lock could not be closed promptly in an emergency. Furthermore, in the above-mentioned conventional device, the mechanism for interlocking the float and the clutch is complicated and large, and it cannot be attached to the existing water gate opening / closing device, or it needs to be remodeled significantly, and also in terms of cost. There was a problem of being uneconomical.

The problem to be solved by the present invention is to provide a self-weight lowering device capable of quickly lowering the self-weight of a water gate in an emergency and easily attached to an existing water gate switch.

[0007]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, a gate lowering device of the present invention is an electric rack type opening / closing machine having an electric mechanism for opening and closing a water gate and a weight lowering operation lever for lowering the water gate by its own weight. , A biasing mechanism for biasing the self-weight lowering operation lever in the direction of self-weight lowering is provided, and this biasing mechanism is provided with locking means so that the biasing force is not applied at all times The float, which rises depending on the outside water level, is interlocked, and when the float rises to a certain water level, the locking means is released to move the own weight lowering operation lever in the direction of the own weight lowering.

[0008]

[Embodiment of device]

 In the present invention, the float 17 is used to detect the rise in water level, which is determined to be an emergency, by utilizing the self-weight lowering function of the electric rack-type switch that has been used conventionally, and the detection is transmitted to the float lever 16. The end portion of the float link material 13 connected to the float lever 16 is lifted.

Then, the self-weight lowering arc cam 9 prevents the self-weight lowering arc cam 9 from pulling down the force of the weight 10 that has been suspended by the weight support member 8 (which indicates a normal state) until now. However, when the float link member 13 is lifted, the dead weight release pin 14 is also lifted by the dead weight release pin 14 provided on the float link member 13, and the dead weight release arc pin 9 is attached to the arc portion of the dead weight arc cam 9. At the same time when the lowering release pin 14 gets over, the self-weight lowering circular arc cam 9 rotates clockwise, the weight 10 is released and falls, and the end portion of the weight support member 8 is pulled down.

As a result, the wire rope 3 connected to the opposite end of the weight supporting member 8 is vigorously pulled up by the reaction force of the weight of the weight 10 falling, and the weight drops through the turning sheaves 4 to 7. By pulling the operation lever link material 2, the gravity descending operation lever 1 falls in the "down" direction, the operator does not go to the site, there is no operation delay, and the sluice door can be closed. .

[0011]

【Example】

 The operation of this embodiment will be described below. 1 is a front view showing an embodiment of the present invention, FIG. 2 is a view taken in the direction of an arrow A in FIG. 1, FIG. 3 is a sectional view of a portion B in FIG. 1, FIG. 4 is a sectional view of a portion C in FIG. 1, and FIG. FIG. 6 is a front view of the present embodiment when descending its own weight, and FIG. 6 is a side view thereof.

In the figure, 1 is a weight lowering operation lever, 2 is a weight lowering operation lever link member, 3 is a wire rope, 4, 5, 6 and 7 are turning sheaves, 8 is a weight support member, and 9 is a weight lowering arc cam. Reference numeral 10 denotes a weight having a weight greater than the operating force of the own weight lowering operation lever 1, 11 is a both-end supporting rotation free shaft, 12 is a float link material mounting base, 13 is a float link material, 14 is a own weight lowering release pin, 15 Is a gravity lowering return lever, 16 is a float lever, 17 is a float, 18 is a float chamber, 19 is a gravity lowering set water level position, and 20 is a current water level.

(A) Since the weight supporting member 8, the self-weight lowering arc cam 9, and the self-weight lowering return lever 15 are fixed on one axis of the both-end supporting rotation free shaft 11, the weight supporting member 8 is interlocked when the weight supporting member 8 moves up and down. And work.

(B) The float link material 13 is pin-connected to the float-link material mounting base 12 and is rotatably attached. The float link material 13 is pin-connected to the float lever 16 at the opposite end to transmit the transmission from the float 17. Inform the float link material 13. Further, the float link member 13 is provided with a self weight drop releasing pin 14.

[1] Normal state (state where water level is low and float is lowered) As shown in FIGS. 1 to 4, the own weight lowering operation lever 1 is in the “through” position, and the own weight lowering operation lever link The wire rope 3 connected to the material 2 is connected to the end portion of the weight support material 8 via the turning sheaves 4 to 7. At this time, the wire rope 3 is not pulled. Further, the weight 10 hangs down on the end portion on the opposite side of the weight support member 8 and the weight support member 8 is going to be pulled down. However, the self weight lowering arc cam 9 connected to the weight support member 8 is the self weight lowering release pin. The weight support member 8 does not descend in a parallel state because it hits 14 and is prevented from descending.

[2] Weight drop state (water level rises and float rises to weight drop set water level position) When the current water level 20 rises, the float 17 and the float lever 16 move together due to buoyancy. As a result, the end of the float link material 13 connected to the float lever 16 is lifted.

Then, when the float 10 moves up to the gravity weight set water level position 19, the gravity weight drop arc cam 9 exerts a force for pulling down the weight weight 10 which has been hanging down on the weight support member 8 until now. However, as shown in FIG. 5, when the float link material 13 is lifted, the gravity lowering release pin 14 provided on the float link material 13 is also lifted, and the arc portion of the gravity falling arc cam 9 is lifted. At the same time as the dead weight release pin 14 gets over, the dead weight arc cam 9 rotates clockwise, the weight 10 is released and falls, and the end portion of the weight support member 8 is pulled down.

As a result, the wire rope 3 connected to the opposite end of the weight support member 8 is vigorously pulled up by the reaction force of the weight of the weight 10 falling, and the weight is lowered through the turning sheaves 7 to 4. By pulling the lever link member 2, the own weight lowering operation lever 1 falls down in the “down” direction, and the sluice door descends.

[3] Returning method A person manually operates the weight lowering return lever 15 to the "through" position, whereby the weight lowering circular arc cam 9 fixed to the both end supporting rotation free ends 11 rotates counterclockwise. When it rotates, the self-weight descent release pin 14 integrated with the float link member 13 falls along the arc portion of the self-weight descent arc cam 9. At this point, the self-weight descent return lever 15 returns to the "through" position. After that, the self-weight lowering operation lever 1 is operated in the "through" direction.

[0020]

[Effect of device]

 As described above, according to the present invention, the floodgate can be quickly lowered by its own weight in an emergency, and it can be easily attached to the existing floodgate switch.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is a view on arrow A of FIG.

FIG. 3 is a sectional view of a B part in FIG.

FIG. 4 is a sectional view of part C in FIG.

FIG. 5 is a front view of the present embodiment when the weight is lowered.

FIG. 6 is a side view of the present embodiment when descending its own weight.

[Explanation of symbols]

1 self-weight lowering operation lever, 2 self-weight lowering operation lever link material, 3 wire rope, 4, 5, 6, 7 turning sheave, 8 weight support material, 9 self-weight lowering arc cam, 10
Weight, 11 both ends supporting rotation free shaft, 12 float link material mount, 13 float link material, 14 dead weight release pin, 15 dead weight return lever, 16 float lever, 17 float, 18 float chamber, 1
9 water drop position set water level, 20 current water level

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Creator Kiyofumi Soejima 1621-1 Hachinohe groove, Nabeshima-cho, Saga-shi, Saga (72) Creator Hidenobu Jinnai 2118-2, Kume, Ogika-gun, Sagi-gun

Claims (4)

[Scope of utility model registration request] 1. An electric rack type opening / closing machine having an electric mechanism for opening and closing a water gate and a weight lowering operation lever for lowering the water gate by its own weight.
Is provided with an urging mechanism for urging the self-weight lowering operation lever 1 in the direction of the self-weight lowering, and the urging mechanism is provided with a lock means for preventing the urging force from being applied at all times. The float 17 that rises depending on the outside water level is interlocked, and when the float 17 rises to a certain water level, the locking means is released to move the self-weight lowering operation lever 1 in the self-weight lowering direction. Gate lowering device. 2. A weight having an own weight equal to or greater than an operation force of the self-weight lowering operation lever 1 attached to the other end of a wire rope 3 having one end attached to the self-weight lowering operation lever 1 so as to be able to move up and down. 10. The gate lowering device according to claim 1, which is 10. 3. The weight support member 8 rotatable around a fulcrum, the other end of the wire rope 3 is connected to one end of the weight support member 8, and the weight 10 is suspended at the other end of the weight support member 8.
The described gate lowering device. 4. The lock means is always engaged with the self-weight lowering release pin 14 provided on the float link member 13 which moves up and down in association with the lifting and lowering of the float 17, and the self-weight lowering release pin 14 is always engaged with the float. The gate lowering device according to claim 3, wherein the self-weight lowering arc cam (9) rotates together with the weight supporting member (8), the engagement state of which is released when the float link member (13) is lifted to lift the float link member (13).