CN210110583U - Safe and reliable error power transmission preventing device for main switch of computer room-less machine - Google Patents

Abstract

The utility model discloses a safe and reliable's no computer lab main switch prevents mistake power transmission device mainly includes main switch and the baffle that is located the main switch both sides, is equipped with the operating handle who is used for the switching-off and combined floodgate on the main switch, both sides lie in the operating handle middle part on the baffle and be equipped with a pair of spacing hole that the position corresponds, one side wherein the lateral wall of baffle is connected with the locating part through the chain, the locating part can be worn to insert in spacing hole, and the one end that the chain was connected to the locating part is equipped with the convex part that can not pass spacing hole, and the one end that the chain was kept away. The utility model discloses simple structure, convenient to use and safe and reliable when elevator maintenance personal need lock the main switch off-state, only need pass the locating part and insert spacing hole in, then pin the lockhole with the padlock can, ensured elevator maintenance personal's safety in utilization.

Description

Safe and reliable error power transmission preventing device for main switch of computer room-less machine

Technical Field

The utility model relates to an elevator technical field, concretely relates to safe and reliable's no computer lab master switch prevents mistake power transmission device suitable for elevator trade.

Background

Elevator manufacturing and installation safety regulations have mandatory requirements on the main switch: the concentration to which each elevator should be fitted is a main switch which can switch off all the power supply circuits of the elevator. The switch should have stable open and closed positions and be able to be locked in the open position with a padlock or other equivalent means to ensure that no malfunction occurs.

For a traditional elevator with a machine room, the main switch generally adopts a structure of a power supply control box. The power control box is arranged in the machine room, when the elevator works normally, the main switch is in a power-on state, and at the moment, the door of the power control box can be closed but cannot be locked, so that the elevator professional can conveniently open the door of the power control box to cut off the power supply when needed. Need the outage operation when the elevator overhauls, main switch is in the outage state, closes power control box door after, beats the brake-pulling position with operating handle on the power control box, will have a mechanical device to withstand main switch's operating handle this moment, makes it keep the off-state, and outside simultaneously stretching out the case with a latch fitting of this mechanical device linkage for the maintainer can pin the chamber door with the padlock, in order to prevent the mistake power transmission.

With the development of economic construction in China, the construction industry is also developed rapidly. Because of limited space of buildings, many buildings have no room for arranging elevator machine rooms and change the elevator machine rooms into elevators without machine rooms. Because the elevator without machine room is not provided with machine room, not only the cost is reduced for the builder, but also the space except the shaft is not occupied, and the elevator without machine room is more and more favored in recent years.

The control system of no computer lab elevator generally installs on the near well outer wall of top layer door, and some producers can all lock main switch combined floodgate and two kinds of states of opening a floodgate, and this moment, when needing to implement the break-out to the main switch of combined floodgate, because there is the restriction of padlock and can't reach the purpose of quick break-out outage, lead to the occurence of failure that some originally can avoid, and in addition, some no computer lab prevent mistake power transmission device design too complicated, and troublesome poeration is unfavorable for promoting.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provide a simple structure of elevator trade, simple to operate and be equivalent to the safe and reliable's of preventing mistake power transmission device with the computer lab switch mistake power transmission device is prevented to the no computer lab master switch mistake power transmission device.

The utility model adopts the following technical scheme:

the utility model provides a safe and reliable's no computer lab main switch prevents mistake power transmission device, mainly includes main switch and the baffle that is located the main switch both sides, is equipped with the operating handle who is used for switching-off and combined floodgate on the main switch, both sides lie in the operating handle middle part on the baffle and be equipped with a pair of spacing hole of position symmetry, one side of wherein the lateral wall of baffle is connected with the locating part through the chain, the locating part can be threaded in spacing hole, and the one end that the chain was connected to the locating part is equipped with the convex part that can not pass spacing hole, and the one end that the chain.

As a preferred technical solution of the present invention, a fixing member is disposed on the outer side wall of the baffle plate connected with the limiting member, and a fixing hole adapted to the size of the limiting member is disposed on the fixing member;

as a preferred technical solution of the present invention, the limiting member is a cylindrical pin, and the limiting hole is a circular hole and is adapted to the size of the cylindrical pin;

as an optimized technical scheme of the utility model, the locating part is the platelike bolt, spacing hole is bar hole and adaptation in the size of platelike bolt.

The utility model has the advantages that:

the utility model discloses simple structure, convenient to use and safe and reliable when elevator maintenance personal need lock the main switch off-state, only need pass the locating part and insert spacing hole in, then pin the lockhole with the padlock can, ensured elevator maintenance personal's safety in utilization.

Drawings

FIG. 1 is a schematic view of the locking structure in accordance with embodiment 1;

fig. 2 is a schematic structural view of the position limiting member in the standby state according to embodiment 1;

FIG. 3 is a side view of embodiment 1;

FIG. 4 is a schematic view of the locking structure according to embodiment 2;

fig. 5 is a schematic structural view of the position limiting member in the standby state according to embodiment 2;

FIG. 6 is a side view of example 2.

The symbols in the drawings illustrate that:

1: main switch, 11: operating handle, 2: baffle, 21: screw hole, 22: limiting hole, 23: chain, 24: fixing member, 25: fixing hole, 3: a stopper, 31: projection, 32: and (6) locking the hole.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 6, a safe and reliable error power transmission preventing device for a main switch of a computer-room-less machine, which mainly comprises a main switch 1 and two baffles 2 located at two sides of the main switch 1, wherein the main switch 1 is provided with an operating handle 11 for switching on and off, two sides of the main switch 1 are provided with two pairs of screw holes, the baffles 2 are correspondingly provided with two pairs of screw holes 21 adapted according to positions of the two pairs of screw holes of the main switch 1, the two baffles 2 are respectively fixed at two sides of the main switch 1 by the screw holes 21 through screws and nuts, a pair of limiting holes 22 with symmetrical positions are arranged at the middle part of the operating handle 11 on the baffles 2 at two sides, a chain 23 is fixedly connected to the outer side wall of the baffle 2 at one side, one end of the chain 23 far away from the baffle 2 is fixedly connected with a limiting member 3, the limiting member 3 can be inserted into the limiting holes, one end of the limiting part 3 connected with the chain 23 is provided with a convex part 31 which can not pass through the limiting hole 22, one end of the limiting part 3 far away from the chain 23 is provided with a lock hole 32 which can be locked by a lock catch member such as a padlock, the outer side wall of the baffle plate 2 connected with the limiting part 3 is provided with a fixing part 24, and the fixing part 24 is provided with a fixing hole 25 which is matched with the size of the limiting part 3.

Example 1

As shown in fig. 1 to 3, the limiting member 3 is a cylindrical pin, one end of the limiting member 3 is provided with a locking hole 32 for locking, the other end of the limiting member 3 is provided with a spherical convex portion 31, the convex portion 31 is fixedly connected with a chain 23, the other end of the chain 23 is fixedly connected to the left baffle 2, and the limiting hole 22 on the baffle 2 and the fixing hole 25 on the fixing member 24 are both circular holes and are adapted to the size of the cylindrical pin.

Example 2

As shown in fig. 4 to 6, the limiting member 3 is a plate-shaped pin, one end of the limiting member 3 is provided with a locking hole 32 for locking, the other end of the limiting member 3 is provided with a square protrusion 31, a chain 23 is fixedly connected to the protrusion 31, the other end of the chain 23 is fixedly connected to the left baffle 2, and the limiting hole 22 on the baffle 2 and the fixing hole 25 on the fixing member 24 are both strip-shaped holes and are adapted to the size of the plate-shaped pin.

In a normal working state, that is, the main switch 1 is in a closing state, at this time, the limiting member 3 is hung on the fixing member 24 (as shown in fig. 2 and 5), and is in a standby state, so that the normal operation (closing or opening) of the operating handle 11 on the main switch 1 is not affected; when the main switch 1 is in the off state and needs to be locked, as shown in fig. 1 and 4, the operating handle 11 on the main switch 1 is located at the lower-switching position, the limiting member 3 is inserted into the limiting hole 22, and the lock hole 32 is locked by a padlock, so that the operation of switching on the operating handle 11 upwards can be limited.

Finally, it should be noted that: these embodiments are merely illustrative of the present invention and do not limit the scope of the invention. In addition, other variations and modifications will be apparent to persons skilled in the art based on the foregoing description. And are neither required nor exhaustive of all embodiments. And obvious changes and modifications may be made without departing from the scope of the present invention.

Claims (4)

1. The utility model provides a safe and reliable's no computer lab main switch prevents mistake power transmission device, mainly includes main switch (1) and baffle (2) that are located main switch (1) both sides, is equipped with operating handle (11) that are used for the break-make and close a floodgate on main switch (1), its characterized in that: both sides lie in operating handle (11) middle part on baffle (2) and be equipped with a pair of spacing hole (22) of rigidity symmetry, one of them side the lateral wall of baffle (2) is connected with locating part (3) through chain (23), locating part (3) can be inserted in spacing hole (22), and the one end that chain (23) were connected in locating part (3) is equipped with convex part (31) that can not pass spacing hole (22), and the one end that chain (23) were kept away from in locating part (3) is equipped with lockhole (32).

2. The safe and reliable mis-power-transmission-preventing device for the main switch of the computer room-less machine room as claimed in claim 1, wherein: be connected with be equipped with mounting (24) on baffle (2) lateral wall of locating part (3), be equipped with on mounting (24) and adapt to in the fixed orifices (25) of locating part (3) size.

3. The safe and reliable power transmission misoperation-preventing device for the main switch of the machine room-less machine room as claimed in claim 1 or 2, wherein: the limiting piece (3) is a cylindrical pin, and the limiting hole (22) is a circular hole and is matched with the size of the cylindrical pin.

4. The safe and reliable power transmission misoperation-preventing device for the main switch of the machine room-less machine room as claimed in claim 1 or 2, wherein: the limiting piece (3) is a plate-shaped inserted pin, and the limiting hole (22) is a strip-shaped hole and is matched with the size of the plate-shaped inserted pin.

Images