JP2852726B2 - Water gate opening and closing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called rack-type water gate door opening / closing device in which a rack member suspended from a water gate door is driven up and down to open and close the water gate.

[0002]

2. Description of the Related Art FIG. 6 shows a conventional rack-type floodgate opening and closing device.

[0003] As shown in the figure, this rack-type water gate door opening / closing device includes a door body 23 mounted on a pier 22 having a structural frame shape constituting a water gate so as to be able to move up and down, and a driving device 20 installed on the pier 22. Are connected via a rack member 21,
The door member 23 is suspended from the rack member 21 so as to be capable of driving up and down. Then, on the pier 22, the driving device 2
Building 25 for accommodating electrical equipment (not shown) and the like.
Was provided.

Here, the rack member 21 for suspending and supporting the door body 23 has heretofore been used as a non-bendable straight rod-shaped member called a rack bar. Therefore, when the door body 23 is pulled up, the upper end of the rack member 21 rises higher than the ceiling of the building 25.
The rack cover 26 in the form of a closed tube is erected at a predetermined position so as not to hinder the upward movement of the rack.

[0006] When the drive device is turned on from the state shown in FIG. 6 and the drive device 20 is operated, the gear (not shown) of the drive device 20 meshed with the rack member 21 is reset. To the rack member 2
Pull 1 upward. As a result, the rack member 2
The door 23 fixed to the lower end of 1 is raised, and the floodgate is opened. At this time, the upper end of the rack member 21 penetrates through the driving device 20 and enters the rack cover 26 erected on the building 25, so that a sufficient stroke necessary for opening the water gate can be obtained.

In order to close the floodgate, the rack member 21 is required.
The gear of the driving device 20 that has meshed with the gears may be rotated in the reverse direction, whereby the door 23 descends in the completely opposite operation to close the water gate. At this time, in the rack type water gate opening / closing device, the door body 23 is a straight rod-shaped rack member 2.
Since the door 23 is pushed downward by the drive device 20 via the drive unit 1, the operation is reliably performed in combination with the weight of the door body 23.

[0007] Reference numeral 24 in the figure denotes a steady rest of the rack member 21 provided between the drive device 20 and the door 23.

[0008]

In the above-mentioned conventional gate opening / closing device, the rack cover must be installed vertically on the building installed on the pier of the gate by aligning its position. In addition to the labor required for the construction, the appearance of the building was unsightly even when the building was completed, and the surrounding landscape was spoiled.

Further, since the rack member is of a long and straight rod-like shape, it is difficult to handle during construction, and
It had a problem that it was difficult to carry it into the construction site.

[0010] It is an object of the present invention to solve the problems of the conventional rack-type floodgate opening and closing device.

[0011]

According to the present invention, in order to solve the above-mentioned problems, a rack member which suspends and supports a door of a water gate meshes with a drive gear connected to a drive source via a reduction gear. In the rack-type water gate door opening and closing device that is opened and closed by being driven up and down by the drive gear, the rack member meshed with the drive gear corresponds to the pitch of the drive gear between the pair of plates. A plurality of engaging members formed by arranging a plurality of pins at intervals are respectively connected at one side thereof via a connecting member so as to be bendable in only one direction. In addition, a guide for bending and guiding the rack member is provided above the driving device that drives the rack member up and down, so that the rack member is bent to one side above the driving device.

[0012]

The pins arranged in the engagement member act to move the engagement member by engaging with the drive gear.

[0013] The connecting member connects the engaging members so as to be able to bend, and connects the rack member that suspends the door body to one side above the drive gear without impairing the transmission of force in the vertical direction. It acts to bend.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

FIG. 1 is a front view showing a main part of a water gate door opening and closing device of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a side view. As shown in the drawing, the water gate opening / closing device of the present invention is connected to one driving device 7 to which a motor 6 serving as a driving source is connected, and connected to the driving device 7 via a relay shaft 9 and is driven synchronously. The other drive 8, as well as the respective drives 7, 8
And a rack member 1 driven up and down.

Each of the two driving devices 7 and 8 includes a reduction gear (not shown) and a driving gear (not shown) that meshes with the rack member 1. And, through holes 7a, 7b, 8a, 8 above and below both driving devices 7, 8 respectively.
b are formed, and rack members 1 and 1 referred to as bendable bow racks, which are essential parts of the present invention, are mounted through the through holes 7a, 7b, 8a and 8b.

As shown in FIGS. 1 to 4, the rack member 1 includes a short engaging member 2 formed by arranging three pins 3 at predetermined intervals between a pair of plate members 2a and 2b. This engaging member 2
Is connected to one side via a connecting member 4 fixed by a connecting pin 5 to form a band. The above pin 3
Are set so as to correspond to the pitch of a drive gear (not shown) with which the rack member 1 meshes. The distance between the pins 3, 3 between the adjacent engaging members 2, 2 is also set to be the same when the engaging members 2 are joined linearly.

FIG. 5 is a side view showing another embodiment of the rack member 1. As shown in the figure, the rack member 1 has a joint end surface of each of the engagement members 2 connected by the connection member 4.
The engagement step portions 2c and 2d are formed respectively.

1 to 3, reference numeral 12 denotes an overload detecting device, 10 denotes a manual handle, and 11 denotes a self-weight drop switching lever.

The sluice gate opening / closing device of the present invention has the above-described configuration, and the driving devices 7 and 8 are installed in a building installed on a pier of a sluice, similarly to the conventional one shown in FIG. The door body is suspended from the arranged and engaged rack member 1 so as to be able to move up and down.

Next, the operation of the sluice gate opening / closing device of the present invention having the above-described configuration will be described. First, when a switch (not shown) is turned on and the motor 6 is operated, the inside of the drive device 7 connected to the drive shaft of the motor 6 is turned on. The drive gear is driven to rotate in one direction via the reduction gear, and the meshed rack member 1 is pulled up. At this time, the driving gear in the other driving device 8 connected to the driving device 7 via the relay shaft 9 is also driven to rotate in the same direction, and the rack member 1 meshed with this driving gear is similarly pulled up. . Therefore, the door suspended by the pair of left and right rack members 1 and 1 is pulled upward to open the water gate.

At this time, in the sluice gate opening and closing device of the present invention, the rack member 1 on which the door body is suspended
Are connected to each other via a connecting member 4 so that the rack member 1 can be bent in one direction, and the rack member 1 pulled up by the driving gear is located on the upper side of the driving device as shown in FIG. Is bent along the guide 13 provided in the first position. Therefore, the rack member 1 does not protrude from the roof of the building.

In order to lower the door body, the drive gear may be rotated in the reverse direction completely opposite to the above, whereby the rack member 1 meshing with the drive gear is pushed downward and the suspended door is supported. It lowers the body. At this time, since the individual engaging members 2 constituting the rack member 1 are joined in a straight line, a downward force is transmitted to the door body, and even if some resistance is caused to lower the door body, an overload occurs. As long as the safety device such as the detection device 12 is within the operating limit, the gate is reliably closed. As shown in FIG. 5, if the rack member 1 in which the engagement step portions 2c and 2d are formed on the joint end surface of the engagement member 2 is used, in this operation, the engagement members 2 and 2 arranged in a straight line are used. Buckling hardly occurs between the members, and this operation is performed more reliably.

In this embodiment, an example is shown in which a plurality of engaging members in which three pins are arranged in a row are connected via a connecting member to form a rack member. The engaging members provided with the mating pins only need to be connected in a bendable manner, and the number of pins provided on each engaging member is arbitrary.

[0025]

As described above, in the sluice gate opening / closing apparatus of the present invention, the rack member for suspending and supporting the door body and driving the door body up and down is configured to be bendable. It can be bent to one side, and it is not necessary to provide a rack cover on the building installed on the pier of the floodgate, and the construction of the building is easy and the construction cost is reduced,
Furthermore, there is no fear that the surrounding scenery will be spoiled.

Further, since this rack member is formed by connecting a number of short engaging members via a connecting member, the rack member can be bent when it is lined up in the vertical direction despite being bendable. Can transmit the force in the vertical direction, and the opening and closing operation of the floodgate is reliably performed. Further, in the gate opening and closing device of the present invention, the rack member can be divided into a plurality of pieces and carried in, and can be assembled at the construction site. It brings a number of excellent effects of being easy to carry in and improving its workability.

[Brief description of the drawings]

FIG. 1 is a front view showing a main part of an embodiment.

FIG. 2 is a plan view of FIG.

FIG. 3 is a side view of FIG. 1;

FIG. 4 is an enlarged side view of a rack member.

FIG. 5 is a side view showing another embodiment of the rack member.

FIG. 6 is a simplified front view of a conventional example.

[Explanation of symbols]

 Reference Signs List 1 rack member 2 engaging member 2a, 2b plate member 2c, 2d engaging stepped portion 3 pin 4 connecting member 5 connecting pin 6 motor 7, 8 driving device 7a, 7b, 8a, 8b through hole 9 relay shaft 13 guide

Continuation of the front page (56) References JP-A-52-118929 (JP, A) JP-A-7-31930 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) E02B 7 / 20 109 E02B 7/36

Claims (1)

(57) [Claims] A rack member that suspends and supports a door of a water gate meshes with a drive gear connected to a drive source via a reduction gear, and is driven up and down by the drive gear to open and close the water gate. In the rack type gate opening / closing device, a plurality of pins are arranged in a row at a distance corresponding to a pitch of the drive gear between a pair of plate members.
A plurality of formed engaging members are respectively provided on one side thereof.
Connected via a connecting member so that it can bend only in one direction.
And things, above the drive unit which drives the raising or lowering of the rack member, the guide is provided a rack member to bend and guide, the rack member is equal to or adapted to be bent to one side above the drive unit Water gate opening and closing device.