CN215326266U

CN215326266U - Elevator overload detection device

Info

Publication number: CN215326266U
Application number: CN202121158350.2U
Authority: CN
Inventors: 何占伟; 袁桂华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-28
Anticipated expiration: 2031-05-27

Abstract

The utility model discloses an elevator overload detection device, which comprises a car and car guide rails, wherein two sides of the car are respectively embedded in the inner walls of the car guide rails, the bottom of the car is fixedly connected with one end of a gravity sensor, two ends of the bottom of the car are fixedly connected with one ends of bearing springs, the other ends of two groups of bearing springs are fixedly connected to the tops of bearing plates, two sides of each bearing plate are fixedly connected with one side of a sliding block, and the other side of each sliding block is embedded in the inner wall of the car guide rail. Further ensuring the life safety of personnel.

Description

Elevator overload detection device

Technical Field

The utility model relates to the technical field of elevator overload detection, in particular to an elevator overload detection device.

Background

Along with the development of the building industry, the height of floors is gradually increased, the use of elevators becomes an indispensable part in life of people, along with the use of elevators, the requirements of people on the safe operation of the elevators are higher and higher, but the current situation is that the elevator has more and more wounded accidents caused by overload, at the moment, the effectiveness of an elevator overload protection device is more and more important, the existing overload detection devices used in the elevator industry are mainly divided into an electromagnetic induction type and a mechanical type, and the two types of overload detection devices directly measure the compression stroke of an overloaded car to determine whether the car is overloaded.

When the elevator was operated, generally transshipping because of the elevator, lead to overload detection device to be damaged, detect failure for the elevator transships the load operation, causes the incident, when taking the elevator in addition, child bounces in the elevator, leads to elevator overload detection device to detect the error, influences the normal operating of elevator, consequently urgently needs an elevator overload detection device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an elevator overload detection device to solve the problems that the overload detection device provided by the background technology is easy to damage and has overload detection errors.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an elevator overload detection device, includes car and car guide, the both sides of car inlay respectively in car guide inner wall, the one end of car bottom fixedly connected with gravity inductor, the one end of car bottom both ends fixedly connected with bearing spring, it is two sets of the equal fixed connection in the top of bearing plate of the other end of bearing spring, one side of the both sides fixedly connected with slider of bearing plate, the opposite side of slider inlays in car guide inner wall, the top fixed connection of bearing plate is in the bottom of filling up the case, the contact plate has been inlayed to the top inner wall of filling up the case.

Preferably, fill up the one end of incasement wall top fixedly connected with connecting rod, the connecting rod runs through the one end at first connecting plate top, the other end fixed connection of connecting rod is in the top of second connecting plate, the bottom fixed connection of second connecting plate is in the one end of expanding spring, expanding spring's other end fixed connection is in filling up incasement wall bottom, threaded rod one end has been inlayed to the inner wall of contact plate, the other end fixed connection of threaded rod is in the one end of bracing piece, the other end of bracing piece is fixed in and fills up incasement wall bottom, the bottom fixedly connected with positive and negative motor's of bracing piece output, positive and negative motor's output is used to out and fills up the bottom of the case.

Preferably, the width of the car guide rail is equal to the width of the slider.

Preferably, the inner wall of the contact plate is provided with a thread matched with the threaded rod.

Preferably, the bottom of the cushion box is provided with a storage box, and the positive and negative motors are placed in the storage box.

Preferably, the probe position of the gravity sensor is vertical to the contact plate.

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

1. according to the elevator overload detection device, by utilizing the bearing spring, the contact plate, the cushion box, the gravity sensor and the bearing plate, when the elevator runs in an overload state, the gravity of the elevator is increased, the elevator extrudes the bearing spring, the bearing spring plays a role of slowing down the descending speed of the elevator, so that the gravity sensor slowly descends to collide with the contact plate, when the elevator is detected to be overloaded, the weight of the elevator is extruded, the contact plate is embedded into the cushion box, the cushion box bears the weight of the elevator, the elevator detection device is protected, the service life of the elevator overload detection device is prolonged, safety accidents of the elevator caused by damage of the detection device are reduced, and the life safety of personnel is further ensured.

2. According to the elevator overload detection device, the connecting rod, the first connecting plate, the second connecting plate, the telescopic spring, the supporting rod, the threaded rod and the positive and negative motors are utilized, when children jump in an elevator, the weight of the elevator is influenced by the force, the weight is increased instantly, when the elevator has an overload phenomenon, the elevator extrudes the contact plate, the positive and negative motors are started, the positive and negative motors enable the contact plate to descend by rotating the threaded rod, the second connecting plate extrudes the telescopic spring, and after the force applied to the elevator disappears, the telescopic spring drives the first connecting plate to slide upwards through the elastic force, so that the contact plate returns to the original position, overload detection is carried out again, errors in overload detection are reduced, the elevator runs normally, and the time for taking people is saved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the protection structure of the device of the present invention;

fig. 3 is a schematic diagram of an overload detection structure according to the present invention.

In the figure: 1. a car; 2. a car guide rail; 3. a slider; 4. a load bearing spring; 5. a contact plate; 6. a cushion box; 7. a gravity sensor; 8. a bearing plate; 9. a connecting rod; 10. a first connecting plate; 11. a second connecting plate; 12. a tension spring; 13. a positive and negative motor; 14. a support bar; 16. a threaded rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown:

an elevator overload detection device comprises a car 1 and a car guide rail 2, wherein two sides of the car 1 are respectively embedded in the inner wall of the car guide rail 2, one end of a gravity sensor 7 is fixedly connected to the bottom of the car 1 and is electrically connected with an external alarm device, when the gravity in the car reaches a preset value, the alarm device starts to give an alarm, two ends of the bottom of the car 1 are fixedly connected with one end of a bearing spring 4, the other ends of two groups of bearing springs 4 are fixedly connected to the top of a bearing plate 8, two sides of the bearing plate 8 are fixedly connected with one side of a sliding block 3, the other side of the sliding block 3 is embedded in the inner wall of the car guide rail 2, the width of the car guide rail 2 is equal to the width of the sliding block 3, so that the sliding block 3 can slide more smoothly in the car guide rail 2, the top of the bearing plate 8 is fixedly connected to the bottom of a cushion box 6, a contact plate 5 is embedded in the inner wall of the top of the cushion box 6, the inner wall of the contact plate 5 is provided with a thread matched with a threaded rod 16, the rotation of threaded rod 16 is more convenient, make contact plate 5 conveniently go up and down, the probe position of gravity inductor 7 is vertical state with contact plate 5, make gravity inductor 7 can be quicker when colliding with contact plate 5, make detection speed can obtain promoting, when the elevator transships the operation, elevator gravity increases, elevator extrusion bearing spring 4, bearing spring 4 plays the speed that slows down the elevator and descends, make gravity inductor 7 slowly descend and collide with contact plate 5, when detecting the elevator and appearing transshipping, the weight of elevator is through the extrusion, contact plate 5 imbeds in the case of packing 6, make the case of packing 6 bear the elevator weight, elevator detection device obtains the protection, the life of elevator overload detection device has been increased, the incident that the elevator appears because of detection device damages has also been reduced, personnel's life safety has further been guaranteed.

According to the figure 3, one end of a connecting rod 9 is fixedly connected to the top of the inner wall of the cushion box 6, the connecting rod 9 penetrates through one end of the top of a first connecting plate 10, the other end of the connecting rod 9 is fixedly connected to the top of a second connecting plate 11, the bottom of the second connecting plate 11 is fixedly connected to one end of a telescopic spring 12, the other end of the telescopic spring 12 is fixedly connected to the bottom of the inner wall of the cushion box 6, one end of a threaded rod 16 is embedded in the inner wall of the contact plate 5, the other end of the threaded rod 16 is fixedly connected to one end of a supporting rod 14, the other end of the supporting rod 14 is fixed to the bottom of the inner wall of the cushion box 6, the output end of a positive and negative motor 13 is connected to the bottom of the cushion box 6, a storage box is arranged at the bottom of the cushion box 6, the positive and negative motor 13 is placed in the storage box, the positive and negative motor 13 is convenient to be stored, so that the positive and negative motor 13 cannot stop running due to dust or moisture, when having child to jump in the elevator, elevator atress influences weight and increases in the twinkling of an eye, when the overload phenomenon appears in the elevator, elevator extrusion contact board 5, positive and negative motor 13 starts, positive and negative motor 13 passes through rotatory threaded rod 16, make contact board 5 descend, second connecting plate 11 extrusion expanding spring 12, after the elevator atress disappears, expanding spring 12 drives first connecting plate 10 through elasticity and upwards slides, make contact board 5 return the normal position, overload detection once more, the error of overload detection time measuring has been reduced, make elevator normal operating, personnel's time has been saved.

The working principle is as follows: when the elevator runs in an overload state, the gravity of the elevator is increased, the elevator extrudes the bearing spring 4, the bearing spring 4 slows down the descending speed of the elevator, the gravity sensor 7 slowly descends to extrude the contact plate 5, the contact plate 5 is embedded into the cushion box 6 due to the extrusion of the overload gravity, so that the cushion box 6 bears the weight of the elevator, when a child jumps in the elevator, the weight influenced by the stress of the elevator is instantly increased, so that the overload detection of the elevator generates errors, the overload phenomenon occurs, the elevator extrudes the contact plate 5, the positive and negative motors 13 are started, the output ends of the positive and negative motors 13 pass through the rotary supporting rods 14, so that the supporting rods 14 are rotated by the threaded rods 16, the threaded rods 16 rotate on the inner wall of the contact plate 5, so that the contact plate 5 descends, the contact plate 5 simultaneously drives the second connecting plate 11 to descend on the outer wall of the supporting rods 14, so that the second connecting plate 11 extrudes the telescopic springs 12, when the stress of the elevator disappears, extension spring 12 upwards slides second connecting plate 11 through elasticity, first connecting plate 10 drives second connecting rod 11 also upwards to slide when upwards sliding, make second connecting rod 11 drive contact plate 5 and return the normal position, overload detection once more, the device makes elevator detection device obtain the protection, elevator overload detection device's life has been increased, the incident that the elevator appears because of detection device damages has also been reduced, personnel's life safety has further been guaranteed, the error of overload detection time measuring has also been reduced simultaneously, make elevator normal operating, personnel's time has been saved.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An elevator overload detection device, includes car (1) and car guide rail (2), its characterized in that: the both sides of car (1) inlay respectively in car guide (2) inner wall, the one end of car (1) bottom fixedly connected with gravity inductor (7), the one end of car (1) bottom both ends fixedly connected with bearing spring (4), two sets of the equal fixed connection in the top of bearing plate (8) of the other end of bearing spring (4), one side of the both sides fixedly connected with slider (3) of bearing plate (8), the opposite side of slider (3) inlays in car guide (2) inner wall, the top fixed connection of bearing plate (8) is in the bottom of filling up case (6), the top inner wall of filling up case (6) has inlayed contact plate (5).

2. An elevator overload detecting apparatus according to claim 1, wherein: the top of the inner wall of the cushion box (6) is fixedly connected with one end of a connecting rod (9), the connecting rod (9) penetrates through one end of the top of the first connecting plate (10), the other end of the connecting rod (9) is fixedly connected with the top of the second connecting plate (11), the bottom of the second connecting plate (11) is fixedly connected with one end of a telescopic spring (12), the other end of the extension spring (12) is fixedly connected with the bottom of the inner wall of the cushion box (6), one end of a threaded rod (16) is embedded in the inner wall of the contact plate (5), the other end of the threaded rod (16) is fixedly connected with one end of a supporting rod (14), the other end of the supporting rod (14) is fixed at the bottom of the inner wall of the cushion box (6), the bottom end of the supporting rod (14) is fixedly connected with the output end of a positive and negative motor (13), and the output end of the positive and negative motor (13) is used for penetrating out of the bottom of the cushion box (6).

3. An elevator overload detecting apparatus according to claim 1, wherein: the width of the car guide rail (2) is equal to the width of the sliding block (3).

4. An elevator overload detecting apparatus according to claim 1, wherein: the inner wall of the contact plate (5) is provided with a thread matched with the threaded rod (16).

5. An elevator overload detecting apparatus according to claim 2, wherein: the bottom of the cushion box (6) is provided with a storage box, and the positive and negative motors (13) are placed in the storage box.

6. An elevator overload detecting apparatus according to claim 1, wherein: the probe position of the gravity sensor (7) is vertical to the contact plate (5).