CN117682402A - Elevator overhauling safety blocking system - Google Patents

Abstract

The invention provides an elevator overhaul safety blocking system which is used for providing a blocking effect during elevator maintenance. The device comprises: the fixing frame, stop mechanism, positioning mechanism and position detection device, it has the bolt hole to open on the fixing frame, the fixing frame passes through bolt and external elevator guide rail fixed connection, the fixing frame both sides are equipped with respectively and stop the mechanism, stop mechanism swing joint to the fixing frame, install positioning mechanism in fixing frame department, the bottom of fixing frame is equipped with position detection device, position detection device is used for detecting whether stop mechanism keeps away from first position, position detection device's output and external elevator control box electric connection. This elevator overhauls safety barrier system, mount pass through bolt mount fixed mounting on the elevator shaft guide rail of elevator car bottom, positioning mechanism accomplishes fixed in position to blocking the mechanism, blocks the mechanism and blocks the elevator car, prevents that the elevator from falling suddenly and causing the injury to maintainer in the maintenance.

Description

Elevator overhauling safety blocking system

Technical Field

The invention relates to the technical field of equipment maintenance blocking, in particular to an elevator maintenance safety blocking system.

Background

The Chinese patent discloses a method for preparing the Chinese medicine with the following application number: the utility model provides a stop device falls down in CN 202120545013.2's elevator maintenance, stop device falls down in elevator maintenance, including setting up in the elevator shaft blocking mechanism, first detection mechanism and controller, be provided with a plurality of recesses from top to bottom on the wall of a well of unreserved door opening in the elevator shaft, blocking mechanism sets up in the recess, including electronic jar and slider, electronic jar is used for driving the slider and reciprocates, slider and bracing piece one end hinge connection, the guide rail top is provided with the fixed bolster with wall fixed connection, the fixed bolster is articulated with blocking horizontal pole one end, the bracing piece other end is articulated with blocking horizontal pole other end, first detection mechanism is used for detecting elevator car position, electronic jar, first detection mechanism links to each other with the controller signal respectively. The device can reduce the falling distance of the elevator.

Although the elevator falling blocking device can block the elevator falling, the elevator falling blocking device still has the following defects: when installing the blocking mechanism, need set up a plurality of recesses from top to bottom on the wall of a well in the elevator shaft in advance, if the elevator shaft wall does not reserve the recess then hardly install this blocking mechanism, secondly utilize the electric cylinder cooperation to block the crossbeam and support the elevator, can't accomplish several electric cylinder synchronous operation, can't play best blocking effect, the electric cylinder possibly can't support elevator car under the circumstances of suddenly cutting off the power supply to take place the incident.

Disclosure of Invention

The invention provides an elevator overhaul safety blocking system, which solves the problem that in the prior art, a groove is inconvenient to open on an elevator shaft wall, so that the operation of installing a blocking mechanism is troublesome.

In order to achieve the above purpose, the present invention adopts the following technical scheme: the invention provides an elevator overhaul safety barrier system, which comprises: the fixing frame is used for being installed on an external elevator shaft guide rail, blocking mechanisms are respectively arranged on two sides of the fixing frame, the blocking mechanisms are movably connected to the fixing frame, the positioning mechanisms are installed at the fixing frame and used for positioning the blocking mechanisms at a first position for blocking the elevator car to lift, the position detection device is arranged at the bottom of the fixing frame and used for detecting whether the blocking mechanisms are far away from the first position, and the output end of the position detection device is electrically connected with an external elevator control box.

Preferably, the blocking mechanism comprises: the blocking arm and the cross shaft are hinged to the fixing frame through the cross shaft at one end of the blocking arm, and the other end of the blocking arm is used for blocking the lifting of the elevator car.

Preferably, the positioning mechanism includes: the support arm and the slide shaft, the fixed bolster is opened there is first spout, and first spout is located the Y direction, and the slide shaft is located first spout, and the slide shaft can slide in first spout, has still seted up the constant head tank on the mount, and the constant head tank is located the cross axle below, and the constant head tank communicates with first spout one side, and the slide shaft can pass support arm one end rotationally, and the support arm other end articulates to blocking arm middle part.

Preferably, the positioning groove is communicated with the first chute and then is inclined downwards, and the positioning groove and the first chute form an inverted J-shaped structure.

Preferably, the blocking arms are two, the two blocking arms are penetrated by a transverse shaft, the positioning mechanism is also two groups, and each blocking arm is provided with a positioning mechanism.

Preferably, both sides of the fixing frame are provided with blocking mechanisms, and the blocking mechanisms comprise: the blocking arm is provided with two, and it has the second spout to block to open on the arm, is equipped with positioning mechanism in the second spout, and positioning mechanism includes: the screw and the nut are matched with each other to clamp the blocking arm and the fixing frame, and the blocking arm can move along the direction of the second sliding groove.

Preferably, blocking mechanisms are arranged on two sides of the fixing frame, the blocking mechanisms are U-shaped blocking arms, the blocking arms are hinged with the fixing frame through transverse shafts, supporting protruding blocks are arranged on the fixing frame relative to the lower portions of the blocking arms, and the supporting protruding blocks can support the blocking arms above.

The invention also discloses an overhaul method of the elevator overhaul safety barrier system, which comprises the following steps:

s1, initially, a blocking mechanism is located at a first position, and a position detection device detects that the blocking mechanism is located at the first position;

s2, adjusting the blocking mechanism to be far away from the first position, detecting that the blocking mechanism is far away from the first position by the position detection device, and transmitting information of the blocking mechanism far away from the first position to an external elevator control box by the position detection device;

s3, the blocking mechanism moves from the first position to the second position, the elevator car is blocked from lifting when the blocking mechanism is located at the second position, and meanwhile, the external elevator control box is controlled not to supply power to the traction machine.

Preferably, in step S3, the positioning operation is performed simultaneously when the blocking mechanism is operated to the second position, where the positioning operation is as follows: the sliding shaft in the blocking mechanism slides into the positioning groove from the first sliding groove, and the inner wall of the positioning groove positions the sliding shaft.

Compared with the prior art, the invention has the following beneficial effects:

1) The device is provided with the fixing frame, can be fixed at any position on the elevator guide rail through bolts and the like, avoids the problem that the blocking mechanism is troublesome to install because a groove is formed in an elevator shaft in the prior art, and improves the installation efficiency.

2) The state that needs electric control to stop the mechanism among the prior art has been avoided, and this application adopts manual regulation to stop the state of mechanism, then fixes a position blocking the mechanism, when the elevator goes wrong when needing the maintenance, can maintain after direct manual regulation, need not to operate to the assigned position, can not realize blocking the phenomenon that mechanism state changes when having not had the electricity among the prior art has been avoided.

3) The positioning mechanism is arranged; after the maintenance operation is finished, the supporting arm moves out of the positioning groove through the sliding shaft to downwards extend and presses the automatic reset switch on the position detection device, so that the elevator is restarted, the maintenance process is more convenient and reliable, and a good protection effect is achieved for maintenance personnel.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic diagram of an elevator service safety barrier system of example 1.

Fig. 2 is a schematic diagram of an elevator service safety barrier system of example 1.

Fig. 3 is a schematic diagram of an elevator service safety barrier system of example 2.

Fig. 4 is a schematic diagram of an elevator service safety barrier system of example 3.

Reference numerals: the device comprises a fixing frame 1, a blocking mechanism 2, a blocking arm 21, a transverse shaft 22, a positioning mechanism 3, a supporting arm 31, a sliding shaft 32, a first sliding groove 33, a positioning groove 34, a nut 35, a screw 36, a position detection device 4, a mounting seat 41, an automatic reset switch 42, a supporting lug 5 and a second sliding groove 6.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present invention more clear and easy to understand, the present invention is further described below with reference to the accompanying drawings and the detailed description:

example 1

As shown in fig. 1 to 2, the present invention provides an elevator overhaul safety barrier system comprising: fixing frame 1, block mechanism 2, positioning mechanism 3 and position detection device 4, it has the bolt hole to open on the fixing frame 1, fixing frame 1 passes through bolt and external elevator guide rail fixed connection, fixing frame 1 both sides are equipped with respectively and block mechanism 2, block mechanism 2 swing joint to fixing frame 1, install positioning mechanism 3 in fixing frame 1 department, positioning mechanism 3 is used for stopping mechanism 2 location in the first position that blocks elevator car and go up and down, the bottom of fixing frame 1 is equipped with position detection device 4, position detection device 4 is used for detecting whether block mechanism 2 keeps away from first position, position detection device 4's output and external elevator control box electric connection. When the elevator car fixing device is used, the fixing frame 1 is fixedly arranged on an elevator shaft guide rail at the bottom of an elevator car through the bolt fixing frame 1, the positioning mechanism 3 is used for fixing the blocking mechanism 2, the blocking mechanism 2 is used for blocking the elevator car, and the elevator is prevented from suddenly falling in maintenance to cause injury to maintenance personnel.

The blocking mechanism 2 includes: the blocking arm 21 and the cross shaft 22, one end of the blocking arm 21 is hinged with the fixing frame 1 through the cross shaft 22, and the other end of the blocking arm 21 is used for blocking the lifting of the elevator car. When the elevator is maintained, the blocking arm 21 extends out along the X direction to support the bottom of the elevator car, the transverse shaft 22 realizes the hinge connection of the blocking arm 21 and the fixing frame 1, and the state of the blocking arm 21 is ensured to be adjustable.

The positioning mechanism 3 includes: the support arm 31 and the slide shaft 32, the mount 1 is opened and has first spout 33, and first spout 33 is located the Y direction, and slide shaft 32 is located first spout 33, and slide shaft 32 can slide in first spout 33, still has offered constant head tank 34 on the mount 1, and constant head tank 34 is located the cross axle 22 below, and constant head tank 34 communicates with first spout 33 one side, and slide shaft 32 can pass support arm 31 one end rotatably, and support arm 31 other end articulates to the blocking arm 21 middle part. When the sliding shaft 32 slides into the positioning slot 34, the relative position of the supporting arm 31 and the fixing frame 1 can be stabilized, and the supporting arm 31 is prevented from moving randomly in the first sliding slot 33, so that the supporting arm 31 cannot support and fix the blocking arm 21, and thus the car cannot be blocked. The supporting arm 31 can support the blocking arm 21, the blocking efficiency and stability of the blocking arm 21 are improved, and the supporting arm 31, the sliding shaft 32 and the first sliding groove 33 are matched and can position the blocking arm 21. The supporting arm 31 is moved to a fixed position in the positioning groove 34 by the sliding shaft 32, so that the blocking mechanism 2 can play a more firm supporting role on the elevator car, and the elevator cannot find falling accidents in maintenance.

The positioning groove 34 is communicated with the first sliding groove 33 and then is inclined downwards, and the positioning groove 34 and the first sliding groove 33 form an inverted J-shaped structure. When the slide shaft 32 moves into the positioning groove 34, the support arm 31 can be positioned.

There are two blocking arms 21, two blocking arms 21 are penetrated by a transverse shaft 22, and two groups of positioning mechanisms 3 are also provided, and each blocking arm 21 is provided with a positioning mechanism 3. The two groups of positioning mechanisms 3 and the matched blocking arms 21 can synchronously move, so that the operation is more convenient.

The position detection device 4 includes: the automatic reset switch 42 is installed in the installation seat 41, the installation seat 41 is installed at the bottom of the fixed frame 1, the pressing part of the automatic reset switch 42 protrudes out of the installation seat 41, the pressing part of the automatic reset switch 42 can block the arm 21 from being extruded, one end of the automatic reset switch 42 is grounded, and the other end of the automatic reset switch 42 is connected to an external elevator control box. When carrying out elevator maintenance work, support arm 31 slides to constant head tank 34 fixedly through slide shaft 32, blocks mechanism 2 and blocks the elevator car, and automatic reset switch 42 is in not pressed this moment, and automatic reset switch 42 gives the first signal of electricity of elevator control box, and position detection device 4 is synchronous to elevator control box signal, and elevator control box then order and drag the host computer outage in the elevator, avoids dragging the host computer and drives the car and go up and down when maintaining, guarantees the safety of maintenance. After the maintenance operation is completed, the blocking arm 21 is retracted, the sliding shaft 32 on the supporting arm 31 slides from the positioning groove 34 to the bottom end of the sliding groove, the supporting arm 31 naturally sags under the gravity condition, at the moment, the end part, far away from the transverse shaft 22, of the blocking arm 21 presses the reset switch, the position detection device 4 sends a second electric signal to the elevator control box, and the elevator control box commands the traction host in the elevator to be electrified, so that normal operation is restored.

The blocking arm 21 is turned over by 90 ° in this embodiment.

This embodiment has the following advantages over embodiment 2: in the first embodiment 2, when the blocking arm 21 is released from blocking the elevator car, the blocking arm 21 extends for a long length on the side of the elevator guide rail away from the elevator car lifting space, and since the side of the elevator guide rail away from the elevator car lifting space is the inner wall of the elevator shaft, the space between the inner wall of the elevator shaft and the elevator guide rail is limited, so that the length of the whole blocking arm 21 is smaller, when the elevator car is moved to the blocking elevator car lifting position, the blocking arm 21 is extremely easy to be prevented from extending to the position right below the elevator car, and is influenced by the relative positions of the elevator guide rail, the inner wall of the elevator shaft and the elevator car, so that the embodiment 2 is sometimes difficult to realize; the embodiment adopts the overturning 90-degree blocking arm 21, so that the blocking arm 21 is vertical to the elevator guide rail when blocking, and the blocking arm 21 is parallel to the elevator guide rail when furling, and is not influenced by the relative positions of the elevator guide rail, the inner wall of the elevator shaft and the elevator car, so that any elevator system can be used. In the second embodiment, under the condition that the overturning 90-degree blocking arm 21 is adopted, the blocking arm 21 is lifted by adopting a mode that the supporting arm 31, the sliding shaft 32, the positioning groove 34 and the first sliding groove 33 are matched, the sliding shaft 32 slides into the positioning groove 34, the blocking arm 21 can be positioned, and the blocking arm 21 is provided with a positioning and supporting effect, so that a car can be blocked to lift by great force, the mode of adjusting the state of the blocking arm 21 is very simple, and the adjusting efficiency is improved; in embodiment 2, however, the adjustment nut 35 is required, which results in troublesome adjustment steps.

Compared with embodiment 3, this embodiment has the following advantages: in embodiment 3, when the blocking arm 21 is released from blocking the elevator car, the blocking arm 21 is turned to the right, that is: the blocking arm 21 extends for a long length on the side of the elevator guide rail away from the elevator car lifting space, and since the side of the elevator guide rail away from the elevator car lifting space is the inner wall of the elevator shaft, the space between the inner wall of the elevator shaft and the elevator guide rail is limited, so that the length of the whole blocking arm 21 is smaller, when the blocking arm 21 is turned to the position for blocking the elevator car lifting, the blocking arm 21 is extremely easy to cause not to extend to the position right below the elevator car, and is influenced by the relative positions of the elevator guide rail, the inner wall of the elevator shaft and the elevator car, so that embodiment 3 is also difficult to realize in some cases; the embodiment adopts the overturning 90-degree blocking arm 21, so that the blocking arm 21 is vertical to the elevator guide rail when blocking, and the blocking arm 21 is parallel to the elevator guide rail when furling, and is not influenced by the relative positions of the elevator guide rail, the inner wall of the elevator shaft and the elevator car, so that any elevator system can be used.

Example 2

This embodiment differs from embodiment 1 in that: the present embodiment is modified from embodiment 1 in that the blocking mechanism 2 and the positioning mechanism 3 are not modified.

As shown in fig. 3, two sides of the fixing frame 1 are provided with blocking mechanisms 2, and the blocking mechanisms 2 include: the blocking arm 21, blocking arm 21 is equipped with two, blocks to open on the arm 21 has second spout 6, is equipped with positioning mechanism 3 in the second spout 6, and positioning mechanism 3 includes: the screw 36 and the nut 35 are matched with each other to clamp the blocking arm 21 and the fixing frame 1, and the blocking arm 21 can move along the direction of the second chute 6. The blocking arm 21 can block the elevator car when the blocking arm 21 extends leftward, and unblock the elevator car when the blocking arm 21 extends rightward. The blocking arm 21 is of a left-right movement type in this embodiment.

Example 3

As shown in fig. 4, blocking mechanisms 2 are arranged on two sides of the fixing frame 1, the blocking mechanisms 2 are U-shaped blocking arms 21, the blocking arms 21 are hinged with the fixing frame 1 through transverse shafts 22, supporting protruding blocks 5 are arranged on the fixing frame 1 relative to the lower portions of the blocking arms 21, the supporting protruding blocks 5 can support the blocking arms 21 above, and the blocking arms 21 are prevented from sagging due to supporting of an elevator car. When the blocking arm 21 is turned to the left, it is supported by the supporting projection 5, so that the blocking arm 21 can block the lifting of the car. When the blocking arm 21 is turned to the right, the blocking of the elevator car by the blocking arm 21 is released. The blocking arm 21 is turned left and right in this embodiment.

Example 4:

the embodiment discloses an elevator overhaul safety barrier system overhaul method based on embodiment 1, embodiment 2 or embodiment 3, comprising the following steps:

s1, initially, the blocking mechanism 2 is positioned at a first position, and the position detection device 4 detects that the blocking mechanism 2 is positioned at the first position;

s2, adjusting the blocking mechanism 2 to be away from the first position, detecting that the blocking mechanism 2 is away from the first position by the position detection device 4, and transmitting information of the blocking mechanism 2 away from the first position to an external elevator control box by the position detection device 4;

s3, the blocking mechanism 2 moves from the first position to the second position, the elevator car is blocked from lifting when the blocking mechanism 2 is located at the second position, and meanwhile, the external elevator control box does not supply power to the traction machine.

In step S3, when the blocking mechanism 2 is operated to the second position, the positioning operation is performed simultaneously, and the positioning operation is as follows: the sliding shaft 32 in the blocking mechanism 2 slides into the positioning groove 34 from the first sliding groove 33, and the inner wall of the positioning groove 34 positions the sliding shaft 32. When the blocking mechanism 2 is adjusted, the sliding shaft 32 slides in the first sliding groove 33 and finally slides into the positioning groove 34, so that the blocking arm 21 is positioned at a position blocking the lifting of the car.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.

Claims (9)

1. Elevator overhauls safety barrier system, its characterized in that includes: mount (frame 1), block mechanism (2), positioning mechanism (3) and position detection device (4), mount (frame 1) is used for installing on external elevator shaft guide rail, mount (frame 1) both sides are equipped with respectively and block mechanism (2), block mechanism (2) swing joint to mount (frame 1), install positioning mechanism (3) in mount (frame 1) department, positioning mechanism (3) are used for stopping mechanism (2) to fix a position in the first position that blocks elevator car and go up and down, the bottom of mount (frame 1) is equipped with position detection device (4), position detection device (4) are used for detecting whether block mechanism (2) keep away from first position, the output and the external elevator control box electric connection of position detection device (4).

2. Elevator overhaul safety barrier system according to claim 1, characterized in that the barrier mechanism (2) comprises: the blocking arm (21) and the cross shaft (22), one end of the blocking arm (21) is hinged with the fixed frame (frame 1) through the cross shaft (22), and the other end of the blocking arm (21) is used for blocking the lifting of the elevator car.

3. Elevator overhaul safety barrier system according to claim 2, characterized in that the positioning mechanism (3) comprises: support arm (31) and slide shaft (32), mount (frame 1) are opened there is first spout (33), first spout (33) are located Y direction, slide shaft (32) are located first spout (33), and slide shaft (32) can slide in first spout (33), still set up constant head tank (34) on mount (frame 1), constant head tank (34) are located cross axle (22) below, constant head tank (34) are linked together with first spout (33) one side, slide shaft (32) can pass support arm (31) one end rotationally, support arm (31) other end articulates to blocking arm (21) middle part.

4. An elevator overhaul safety barrier system according to claim 3, characterized in that the positioning groove (34) is inclined downwards after being communicated with the first sliding groove (33), and the positioning groove (34) and the first sliding groove (33) form an inverted J-shaped structure.

5. Elevator service safety barrier system according to any one of claims 2 to 4, characterized in that there are two barrier arms (21), that both barrier arms (21) are penetrated by a transverse shaft (22), that there are also two groups of positioning means (3), that each barrier arm (21) is provided with a positioning means (3).

6. Elevator overhaul safety barrier system according to claim 1, characterized in that both sides of the fixing rack (rack 1) are provided with barrier mechanisms (2), the barrier mechanisms (2) comprising: the blocking arms (21), blocking arms (21) are provided with two, second sliding grooves (6) are formed in the blocking arms (21), positioning mechanisms (3) are arranged in the second sliding grooves (6), and the positioning mechanisms (3) comprise: the screw (36) and the nut (35) are matched with each other to clamp the blocking arm (21) and the fixing frame (frame 1), and the blocking arm (21) can move along the direction of the second sliding groove (6).

7. The elevator overhaul safety blocking system according to claim 1, wherein blocking mechanisms (2) are arranged on two sides of the fixing frame (frame 1), the blocking mechanisms (2) are U-shaped blocking arms (21), the U-shaped blocking arms (21) are hinged with the fixing frame (frame 1) through transverse shafts (22), supporting protruding blocks (5) are arranged on the fixing frame (frame 1) relative to the lower portions of the blocking arms (21), and the supporting protruding blocks (5) can support the U-shaped blocking arms (21) above.

8. The elevator overhaul safety barrier system overhaul method is characterized by comprising the following steps of:

s1, initially, a blocking mechanism is located at a first position, and a position detection device detects that the blocking mechanism is located at the first position;

s2, adjusting the blocking mechanism to be far away from the first position, detecting that the blocking mechanism is far away from the first position by the position detection device, and transmitting information of the blocking mechanism far away from the first position to an external elevator control box by the position detection device;

s3, the blocking mechanism moves from the first position to the second position, the elevator car is blocked from lifting when the blocking mechanism is located at the second position, and meanwhile, the external elevator control box is controlled not to supply power to the traction machine.

9. The elevator service safety barrier system of claim 8, wherein the positioning operation is performed simultaneously when the barrier mechanism is operated to the second position in step S3, the positioning operation being as follows: the sliding shaft in the blocking mechanism slides into the positioning groove from the first sliding groove, and the inner wall of the positioning groove positions the sliding shaft.