JPH09238415A - Positioning device of pull-out type equipment mounted truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the operation when a truck is moved, to firmly fix the truck, to withstand the vibration in an earthquake or when a switch gear is moved, and to improve the safety by moving right and left side locking rods to the position closer to an outlet than a lower locking rod, and inserting them into connection/disconnection holes of a positioning piece for each side part. SOLUTION: A connection hole at the connection position and a disconnection hole 5 at the disconnection position are made in a lower part positioning piece 24 and a side part positioning piece 33, and a fitting piece 25 in which an outlet position locking part 28 and an inlet position locking part 29 are formed is fitted to a front side of a truck on which a draw out type equipment is mounted. An L-shaped lower part locking rod 30 in which a base part 31 is freely attached/detached to/from the locking parts 28, 29 is urged to the outlet direction by a spring 22, a tip part 32 of the lower part locking rod 30 is inserted in the connection hole or the disconnection hole 5 of the lower part positioning piece 24, a side part locking rod 40 is moved in the outlet direction by the lower part locking rod 30, and a tip part 45 of the side part locking rod 40 is inserted in the connection hole or the disconnection hole 5 in the side part positioning piece 33 to easily fix the truck.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer type device-equipped carriage positioning device for positioning a drawer type device-equipped carriage housed in a switchgear.

[0002]

2. Description of the Related Art A conventional positioning device for a trolley equipped with a drawer-type device such as a circuit breaker will be described with reference to FIGS. First, FIG. 5 is a partially cut-away front view, and FIG. 6 is a left side view of FIG. 5, where 1 is two front and rear rails arranged on the lower surface 2 of the switchgear body, 3 is the left side of the lower surface 2. As shown in the plan view of FIG. 7 and the front view of FIG. 8, a positioning hole is provided at a connecting position of the fitting 3, and a disconnecting hole 5 is provided at a disconnecting position. There is.

Reference numeral 6 is a drawer-type equipment-equipped dolly housed in the main body, 7 is a wheel of the dolly 6 that moves back and forth along the rail 1, and 8 is two handles provided at the center of the front surface of the dolly 6. , 9 are mounting metal fittings mounted on the rear surface of the opening 10 at the lower left side of the front surface of the carriage 6, and as shown in the front view of FIG. 9, a vertical elongated hole 11 opened at the upper end of the metal fitting 9 is formed. The protruding position locking portion 12 is formed at the lower end of the long hole 11.

Reference numeral 13 denotes an inverted L-shaped fixing metal fitting, which is mounted on the upper part of the back surface of the mounting metal fitting 9 as shown in FIG. Reference numeral 14 is a through hole formed in the upper plate of the fixing fitting 13, 15 is a guide fitting attached to the lower part of the back surface of the mounting fitting 9, 16 is a vertical guide hole formed in the guide fitting 15, and 17 is a guide hole. It is a cylindrical body inserted in 16.

Reference numeral 18 is an inverted L-shaped locking rod, and 19 is a locking rod 1.
It is the base of the upper part of 8, is located in the long hole 11, and serves as a grip. Reference numeral 20 denotes a tip end portion of the locking rod 18, and the locking rod 18 is inserted into the cylindrical body 17 through the through hole 14, the flat washer 21, the spring 22, and the flat washer 21 of the fixing fitting 13. Reference numeral 23 is a spring pin that penetrates the upper portion of the tubular body 17 and the locking rod 18. The tubular pin 17 is fixed to the locking rod 18, and the spring 22 urges the locking rod 18 in the outgoing direction. The tip portion 20 of the stop rod 18 and the lower portion of the tubular body 17 project from the lower portion of the mounting member 9.

Then, as shown in FIG. 10, the locking rod 18
When the distal end portion 20 of the cylindrical body 17 is inserted into the connection hole 4 or the disconnection hole 5, the lower surface of the cylindrical body 17 contacts the peripheral edge portion of the connection hole 4 or the disconnection hole 5, and the base portion 19 of the locking rod 18 comes out. Since the carriage 6 is at a position slightly apart from the position locking portion 12, the carriage 6 cannot be pulled out and stored, and the carriage 6 is fixed.

Next, when the carriage 6 is moved, the base portion 19 of the locking rod 18 is moved upward along the elongated hole 11 so that the position of the chain line in FIG. The carriage 6 is moved to the tripping position separated from the positioning metal fitting 3, and in that state, the carriage 6 is moved by holding the handle 8.

[0008]

In the case of the above-mentioned conventional apparatus, when the carriage 6 is moved, it is necessary to hold the locking rod 18 in the state of being moved upward by the base portion 19, which is complicated to hold. .

In order to fix the carriage 6, the tip portion 20 of one vertically movable locking rod 18 is connected to the connecting hole 4 of the positioning fitting 6.
Alternatively, since it is carried out by being inserted into the disconnecting hole 5, the entire load of the carriage 6 must be supported only by the tip portion 20 of the locking rod 18 at the time of vibration such as an earthquake or movement of the switch gear. However, there is a problem in that it is weak against vertical vibration, and safety and reliability are low.

In consideration of the above points, the present invention simplifies the operation of the trolley during movement, and strengthens the trolley fixing.
It is an object of the present invention to provide a positioning device for a trolley equipped with a drawer type device, which is highly resistant to vibrations such as an earthquake or movement of a switch gear and has high safety and reliability.

[0011]

In order to solve the above-mentioned problems, a positioning device for a drawer type equipment-equipped trolley according to the present invention comprises a lower positioning metal fitting mounted on a lower part of a switchgear body and both side parts of the main body. Side positioning metal fittings attached to
Connection holes at the connecting position and disconnecting hole at the disconnecting position, which are transparently provided on each positioning metal fitting, a mounting metal fitting mounted on the front surface of the drawer type device-equipped trolley, and an outgoing position locking formed on the lower and upper parts of the mounting metal fitting. Part and entry position locking part, and the base is urged in the direction of exit by a spring, the base part can be engaged with and disengaged from both locking parts, the tip part can be withdrawn from the bottom of the mounting bracket, and the connection hole of the lower positioning bracket. And L-shaped lower locking rods to be inserted into the disconnecting holes and laterally provided on both sides of the trolley, the tips of each of which are retractable from both sides of the trolley and are urged by springs in the retracting direction. It is provided with left and right side locking rods which are moved to the exit position by the lower locking rods and are inserted into the connection holes and the disconnecting holes of the both side positioning metal fittings.

Therefore, when fixing the carriage, when the base portion of the lower locking rod is disengaged from the insertion position locking portion of the fitting, the lower locking rod is urged by the spring in the outgoing direction, and the lower locking rod is pushed. Is inserted into the connection hole or disconnection hole of the lower positioning metal fitting, the two side locking rods are moved to the exit position by the lower locking metal rod, and the end portions of the two side locking rods are positioned on both side positioning metal fittings. Since it is inserted into the connection hole or disconnection hole of the, the operation of fixing the dolly becomes extremely easy, and the dolly is reinforced at three points, which makes it easier to move in the vertical direction during vibrations such as an earthquake or switchgear movement. It is resistant to vibration and improves safety and reliability.

Further, when the carriage is moved, the base portion of the lower locking rod is locked to the insertion position locking portion of the mounting member so that the lower locking rod is pulled out, that is, the connection hole of the lower positioning member or The state of being separated from the disconnection hole is maintained, and the both-sides locking rods are biased in the retracting direction by the springs, so that the two-sides locking rods are kept in the released state,
Each locking rod is automatically held in the disengaged position, which makes it extremely easy to operate.

[0014]

1 is a partially cut front view of a first embodiment, and FIG. 2 is a cutaway left side view of FIG.
Description will be made with reference to FIG. 3 showing a part of an enlarged cut front view and FIG. 4 showing another part of a cut front view of FIG. 1. In these drawings, the same reference numerals as those in FIGS. 5 to 10 designate the same or corresponding parts.

Reference numeral 24 denotes a lower positioning metal fitting provided in the central portion of the lower surface 2 of the switchgear body, and similarly to FIG. 7, the positioning metal fitting 24 is provided with a connecting hole 4 at a connecting position and a disconnecting hole 5 at a disconnecting position. ing. 25 is a trolley 6 equipped with a drawer type device
Is attached to the rear surface of the opening 26 at the lower center of the front surface of the attachment, 27 is a vertically elongated hole opened at the upper end of the attachment 25, and 28 is formed at the bottom of the attachment 25, that is, at the lower end of the elongated hole 27. The exit position locking portion 29 is a hook-shaped entrance position locking portion formed on the upper portion of the mounting member 25, that is, on the right side on the opening side of the elongated hole 27.

Then, the fixing metal fitting 13 is mounted on the upper part of the back surface of the mounting metal fitting 25, the guide metal fitting 15 is mounted on the lower part thereof, the tubular body 17 is inserted into the guide hole 16 of the guide metal fitting 15, and the lower part of the inverted L shape is locked. The rod 30 is inserted into the tubular body 17 through the through hole 14, the flat washer 21, the spring 22, and the flat washer 21 of the fixing member 13, and the spring pin 23 engages the tubular body 17 and the locking rod 30.
When and are fixed and the base 31 of the locking rod 30 urged in the outgoing direction by the spring 22 is locked to the outgoing position locking portion 28,
The tip 32 of the locking rod 30 formed to be elongated is attached to the mounting bracket 2.
5 projects from the bottom.

Reference numeral 33 is a side positioning metal fitting mounted on both left and right side surfaces 34 of the main body, and like the lower positioning metal fitting 24, the connection hole 4 and the disconnecting hole 5 are transparently provided. Reference numeral 35 is a lower metal fitting mounted on the bottom of the carriage 6 in the left-right direction, and 36 is mounted on both ends of the lower metal fitting 35, respectively.
7 is a guide fitting, 38 is a cylindrical body inserted through the guide hole 37, 39 is an insertion hole formed in the center of the lower fitting 35, and the tip 32 of the lower locking rod 30 is inserted through the insertion hole. There is.

Reference numeral 40 denotes a lateral side engaging rod provided movably on both sides above the lower metal fitting 35, and 41 denotes an engaging rod 4.
0 is an abutting plate fixed to the end face of the base of the locking rod 40
Is inserted into the cylindrical body 38 via a spring 42 and a flat washer 43. Reference numeral 44 denotes a spring pin projectingly provided on the inner side of the tubular body 38, which prevents the tubular body 38 from deviating outward from the guide fitting 36 and moves the tubular body 17 of the lower locking rod 30 moved downward.
However, when it comes into contact with the contact plate 41 of the both side locking rod 40, the tip end portion 45 of the both side locking rod 40 moves to the protruding position, and the carriage 6
Protruding from both sides.

In the state shown in the drawing, the base 31 of the lower locking rod 30 is locked to the protruding position locking portion 28 of the elongated hole 27, and the tip 32 of the locking rod 30 is inserted into the insertion hole 39. The contact plate 41 of the both side locking rods 40 is inserted into the connection hole 4 or the disconnecting hole 5 of the lower positioning metal fitting 24, and the contact plate 41 of the both side locking rods 40 is the cylindrical body 17 of the lower locking rod 30.
And the tip end portions 45 of the both side engaging rods 40 move to the projecting position to connect the connecting hole 4 or the disconnecting hole 5 of the side positioning member 33.
The cart 6 is fixed because the cart 6 cannot be pulled out and stored.

Next, when moving the carriage 6, the base 31 of the lower locking rod 30 is moved from the position indicated by the solid line in FIG.
And moves upward to move the base 31 to the position indicated by the chain line, that is, the position of the insertion position locking portion 29 and lock it. At this time, the lower locking rod 30 is in the detached state, that is, the lower positioning fitting 2
4 is maintained and the tubular body 17 is moving upward, the springs 42 urge the side locking rods 40 in the retracting direction, and the contact plates 41 of the side locking rods 40 are urged. Is kept in contact with the tip end portion 32 of the lower locking rod 30 and is disengaged from the side positioning metal fittings 33 of the both side locking rods 40, and the carriage 6 can be moved.

[0021]

Since the present invention is constructed as described above, it has the following effects. The positioning device for the trolley equipped with the drawer type device of the present invention mounts the lower positioning metal fittings 24 and the side positioning metal fittings 33 on the lower part and both sides of the switch gear body, and connects the positioning metal fittings 24, 33 to the connection hole 4 and the connecting hole 4 at the connecting position. The disconnection hole 5 at the disconnection position is transparently provided, and the mounting bracket 25 having the exit position locking portion 28 and the entry position locking portion 29 is mounted on the front surface of the pull-out type device-equipped trolley 6, and the base portion 31 serves as both ends. An L-shaped lower locking rod 30 which can be engaged with and disengaged from the stoppers 28 and 29 is urged in the outgoing direction by a spring 22, and a tip portion 32 of the lower locking rod 30 is connected to the connection hole 4 of the lower positioning metal fitting 24 or Insert into the disconnecting hole 5 and lock on both sides 40
Is moved to the projecting position by the lower locking rod 30, and the tip 45 of the both side locking rod 40 is inserted into the connection hole 4 or the disconnecting hole 5 of the both side positioning metal fittings 33, so that the carriage 6 is fixed. The operation can be performed very easily, the trolley 6 is fixed at three places, and it is reinforced against vertical vibration at the time of vibration such as an earthquake or the movement of switch gear, thereby improving safety and reliability. You can

Further, since the base portion 31 of the lower locking rod 30 is locked to the entry position locking portion 29 of the mounting member 25, and the both side locking rods 40 are biased in the retracting direction by the spring 42. When the carriage 6 is moved, the lower locking rod 30 can be maintained in the disengaged state, that is, the state where it is disengaged from the lower positioning metal fitting 24, and the both side locking rods 40 are disengaged, that is, both side positioning metal fittings. The state of being separated from 33 can be maintained, the locking rods 30 and 40 can be automatically held at the disengaged position, and the operation of moving the carriage 6 can be performed very easily.

[Brief description of drawings]

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

2 is a cutaway left side view of FIG. 1. FIG.

3 is an enlarged cutaway front view of a portion of FIG. 1. FIG.

FIG. 4 is a cutaway front view of another part of FIG.

FIG. 5 is a partially cut front view of a conventional example.

FIG. 6 is a left side view of FIG. 5;

7 is a plan view of a portion of FIG.

FIG. 8 is a front view of FIG. 7;

9 is an enlarged cutaway front view of another part of FIG. 5. FIG.

FIG. 10 is a right side view of the section of FIG.

[Explanation of symbols]

 6 Drawer-type device-mounted cart 22 Spring 24 Lower positioning metal fitting 25 Mounting metal fitting 28 Outgoing position locking part 29 Entry position locking part 30 Lower locking rod 31 Base 32 Tip part 33 Side positioning metal fitting 40 Side locking rod 42 Spring 45 Tip

Claims (1)

[Claims] 1. A lower positioning metal fitting mounted on a lower portion of a switchgear main body, side positioning metal fittings mounted on both sides of the main body, and connection holes at connecting positions transparently provided on the respective positioning metal fittings. And the disconnection hole at the disconnection position, the mounting bracket mounted on the front of the drawer-type device-equipped trolley, and the output position locking part and the input position locking part formed on the lower and upper parts of this mounting bracket and the spring L-shaped inserted into the connection hole and disconnection hole of the lower positioning metal fitting, the base portion of which is engageable with and disengageable from the both locking portions, and the tip end of which is retractable from the lower portion of the mounting metal fitting. -Shaped lower locking rods, which are provided on both sides of the dolly in the left-right direction, and the tips of each of which are retractable from both sides of the trolley, and are urged by springs in the retracting direction, and are pushed out by the lower locking rods. Move to the position of A positioning device for a drawer-equipped trolley equipped with left and right side locking rods that are inserted into a connection hole and a disconnection hole.