CN220473686U - Elevator car stop distance measuring device for refinery goods - Google Patents

Abstract

The utility model relates to a lift car stop distance measuring device for a refinery cargo, and belongs to the technical field of lift detection. The foldable support is integrally arranged in a four-bar mechanism, and four bars of the four-bar mechanism can be folded into a plane; the middle part of a rocker in the four-bar mechanism is hinged with a measuring balance module; when the rocker rotates upwards, the measuring balance module is in a horizontal state under the action of gravity; when the rocker rotates to the limit position, the four-bar mechanism supports the rocker by utilizing the dead point. The utility model provides a lift car stop ranging device for a refinery cargo, which can be used in a lift machine room, is prevented from being installed in a lift shaft and is easy to operate.

Description

Elevator car stop distance measuring device for refinery goods

Technical Field

The utility model relates to a lift car stop distance measuring device for a refinery cargo, and belongs to the technical field of lift detection.

Background

In petroleum separation and refining columns, freight lifts are commonly used to transport personnel and cargo. Since these towers are typically located at a higher elevation, elevators are typically used to transport personnel and cargo to the top of the tower for maintenance, inspection and other necessary operations. Furthermore, the elevator can also be used to transport goods from one floor to another for processing and production within the tower.

Since the elevator needs to be frequently used for a long time, the physical braking function of the elevator needs to be automatically detected at regular intervals when the elevator is not in operation, and in order to prevent casualties caused by sudden power failure of a petroleum refinery, the elevator braking test needs to be performed by detecting the physical braking function of the elevator, so that the safety and the reliability of the elevator are ensured. Through the braking test, whether the braking system can timely and accurately respond to the braking instruction or not and whether the braking force meets the specified requirement or not can be detected. Only through the brake test, the elevator can be safely stopped under the emergency, and only through the brake test, the safety of goods in the sudden power failure process of the elevator can be ensured.

In the process of realizing the technical scheme, the inventor finds that at least the following technical problems exist in the prior art:

in the braking detection process of the lifter for oilfield cargoes, the existing laser ranging device is installed at the bottom of a lifter channel for measurement, personnel are usually required to enter a well of the lifter and go down to the lowest end for installation, in addition, after the lifter is used, the lifter is not timely detached, later dust easily blocks a laser head to influence detection, and therefore the lifter for oilfield cargoes is inapplicable.

Disclosure of Invention

The utility model aims to solve the technical problems that: overcomes the defects of the prior art, provides a distance measuring device is stopped with elevator car system to refinery goods to guarantee that the lift can normal operating, and when having a power failure suddenly, avoid taking place to fall to the ground, the safe production problem that leads to, can use at the computer lab of lift, thereby can avoid installing in the lift shaft of lift.

The utility model relates to a lift car stopping distance measuring device for a refinery cargo, which comprises a foldable bracket, wherein the bracket is integrally arranged in a four-bar mechanism, and four bars of the four-bar mechanism can be folded into a plane;

the middle part of a rocker in the four-bar mechanism is hinged with a measuring balance module;

when the rocker rotates upwards, the measuring balance module is in a horizontal state under the action of gravity;

when the rocker rotates to the limit position, the four-bar mechanism supports the rocker by utilizing the dead point.

Further, the measuring balance module comprises a shell hinged to the middle of the rocker, a balancing weight is installed in the shell, and a laser sensor is installed at one end of the shell.

Further, the four-bar mechanism comprises a square underframe, one end inside the underframe is hinged with a rocker, the rocker can be folded into the underframe, one end of the rocker is hinged with one end of a connecting rod, the other end of the connecting rod is hinged with one end of a swinging rod, and the other end of the swinging rod is hinged on the underframe.

Further, the length of the swinging rod is 1.8-2.2 times of the length of the connecting rod.

Further, the chassis is composed of a frame, two rockers are arranged in parallel in the chassis, and a measuring balance module is hinged between the two rockers.

Further, the whole measuring balance module is square, and after rotating, the measuring balance module can be folded between the two rockers.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model is placed between two traction ropes of the elevator and can be directly used in a machine room of the elevator, so that the installation in an elevator shaft of the elevator can be avoided, the operation is easier through a bracket capable of folding operation, the stable support of a rocker at the limit position is realized through the dead point design of a four-bar mechanism, and the stability and the reliability of a measuring balance module are ensured; through the design of the foldable bracket, the whole storage of the device is realized, and the device is convenient to use and carry in narrow spaces such as a machine room and the like; the measuring balance module adopts a shell design hinged in the middle of the rocker, and realizes the horizontal state detection of the laser sensor through the weight adjustment of the balancing weight, thereby improving the accuracy and stability of the detection; the whole measuring balance module is square, can be folded between two rockers after rotating, and is convenient to store and carry.

Drawings

FIG. 1 is a schematic view of the mounting structure of embodiment 1 of the present utility model;

FIG. 2 is a partial schematic view of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B;

FIG. 4 is a schematic view showing the structure after development of embodiment 1 of the present utility model;

FIG. 5 is a schematic view showing the structure after folding in embodiment 1 of the present utility model;

in the figure:

1. a traction machine; 11. A traction rope I; 2. A speed limiter; 21. A traction rope II; 3. A car; 4. A tensioning device; 5. A machine room; 6. A bracket; 61. A chassis; 62. A rocker; 63. A connecting rod; 64. A swinging rod; 7. A measurement balancing module; 71. A housing; 72. A laser sensor; 8. A handle.

Detailed Description

Example 1

As shown in fig. 1 to 5, the lift car stopping distance measuring device for the refinery goods comprises a foldable bracket 6, wherein the bracket 6 is integrally arranged in a four-bar mechanism, and four bars of the four-bar mechanism can be folded into a plane;

the middle part of a rocker 62 in the four-bar mechanism is hinged with a measuring balance module 7;

when the rocker 62 rotates upwards, the measuring balance module 7 is in a horizontal state under the action of gravity;

when the rocker 62 rotates to the limit position, the four-bar mechanism supports the rocker 62 with the dead point.

The measuring balance module 7 comprises a shell 71 hinged in the middle of the rocking bars 62, a connecting shaft is arranged between the two rocking bars 62, the shell 71 is hinged on the connecting shaft, the shell 71 can rotate on the connecting shaft, an electromagnetic sleeve sleeved on the connecting shaft is further arranged in the shell, and when the electromagnetic sleeve is electrified, the electromagnetic sleeve adsorbs the connecting shaft, so that the whole measuring balance module 7 is fixed on the connecting shaft.

The weight is installed in the shell 71, the laser sensor 72 is installed at one end of the shell 71, the laser sensor 72 is in refraction feedback type, the laser sensor 72 emits through one point, after light is refracted, the other point of the laser sensor 72 receives, and the laser sensor 72 is a sensor for measuring by utilizing a laser technology; the device consists of a laser, a laser detector and a measuring circuit; the laser sensor is a novel measuring instrument, and has the advantages of being capable of realizing non-contact remote measurement, high in speed, high in precision, large in measuring range, strong in light and electric interference resistance and the like.

The four-bar mechanism comprises a square underframe 61, wherein one end inside the underframe 61 is hinged with a rocker 62, the rocker 62 can be folded into the underframe 61, one end of the rocker 62 is hinged with one end of a connecting rod 63, the other end of the connecting rod 63 is hinged with one end of a swinging rod 64, and the other end of the swinging rod 64 is hinged on the underframe 61.

The length of the swinging rod 64 is 1.8-2.2 times that of the connecting rod 63, and can be 1.8 times, 2 times or 2.2 times, so that the swinging rod 64 and the connecting rod 63 do not exceed the upper surface and the lower surface of the rocker 62 after being folded.

The chassis 61 comprises the frame, and the inside parallel arrangement of chassis 61 is two rockers 62, and the articulated measurement balance module 7 between two rockers 62.

The measuring balance module 7 is arranged in a square shape as a whole, and can be folded between the two rockers 62 after rotating; handles 8 are mounted on the ends of the two rockers 62 for pulling the support 6 apart.

Working process or working principle:

a traction machine 1 is arranged in the machine room 5 and connected with a car 3, and a tensioning device 4 and a speed limiter 2 are also connected outside the car 3; the conventional arrangement of the lifter is not described too much, the traction machine 1 is connected with the car 3 through the traction rope i 11, the speed limiter 2 is connected with the car 3 through the traction rope ii 21, and during manufacturing, the traction rope i 11 and the traction rope ii 21 are closely gathered and are arranged in a notch, as shown in fig. 3, the handle 8 is pulled to prop up the support 6 and put in the notch, the balance module 7 is balanced by gravity, after the balance, the electromagnetic sleeve is electrified to fix the balance module 7, the balance module 7 is prevented from swinging, the detection head of the laser sensor 72 irradiates the car 3 downwards, and the distance measurement is performed by using the reflection of the car 3. When the detection is unqualified, the alarm can be given out through the connected alarm, and the alarm can adopt an audible and visual alarm.

When the rack 6 is recovered, the hinge point of the swing lever 64 and the link 63 is pushed forward, and then the rocker 62 is pushed into the chassis 61, and the measuring balance module 7 is correspondingly flattened.

The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.

Claims (5)

1. The lift car stopping distance measuring device for the refinery goods is characterized by comprising a foldable bracket (6), wherein the bracket (6) is integrally arranged in a four-bar mechanism, and four bars of the four-bar mechanism can be folded into a plane;

the four-bar mechanism comprises a square underframe (61), wherein one end of the inside of the underframe (61) is hinged with a rocker (62), the rocker (62) can be folded into the underframe (61), one end of the rocker (62) is hinged with one end of a connecting rod (63), the other end of the connecting rod (63) is hinged with one end of a swinging rod (64), and the other end of the swinging rod (64) is hinged on the underframe (61);

the middle part of a rocker (62) in the four-bar mechanism is hinged with a measuring balance module (7);

when the rocker (62) rotates upwards, the measuring balance module (7) is in a horizontal state under the action of gravity;

when the rocker (62) rotates to the limit position, the four-bar mechanism supports the rocker (62) by utilizing the dead point.

2. The lift car stopping distance measuring device for the refinery goods according to claim 1, characterized in that the measuring balance module (7) comprises a shell (71) hinged in the middle of the rocker (62), a balancing weight is installed in the shell (71), and a laser sensor (72) is installed at one end of the shell (71).

3. The lift car stop distance measuring device for a refinery commodity according to claim 1 or 2, wherein the length of the swinging rod (64) is 1.8-2.2 times the length of the connecting rod (63).

4. The lift car stop ranging device for the refinery goods according to claim 1 or 2, characterized in that the underframe (61) is composed of a frame, and two rockers (62) are arranged in parallel inside the underframe (61).

5. The lift car stop distance measuring device for refinery goods according to claim 4, characterized in that the measuring balance module (7) is arranged in square shape as a whole, and can be folded between two rocking bars (62) after rotation.