CN210825049U

CN210825049U - Weight-variable elevator counterweight

Info

Publication number: CN210825049U
Application number: CN201920838869.1U
Authority: CN
Inventors: 范晶虹; 龚宗光
Original assignee: Jiangsu Elite Mechanical And Electrical Co ltd
Current assignee: Jiangsu Elite Mechanical And Electrical Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-23
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a variable weight formula elevator counter weight, including support body, balancing weight and hydraulic system, hydraulic system includes inside water tank, outside water tank, solenoid valve, water pump and motor, balancing weight and inside water tank are all installed in the support body, the water pump is connected with the motor, the outside water tank of one end of water pump is connected, and the other end is connected with inside water tank, the one end of solenoid valve is connected with outside water tank, and the other end is connected with inside water tank. The utility model discloses a set up hydraulic system, can be according to the change of passenger's weight in the elevator car, come the weight of corresponding adjustment counter weight, make the weight of counter weight the same with the weight of car, make car and counter weight be in weight balance's state, can reduce traction motor's loss, realize energy saving.

Description

Weight-variable elevator counterweight

Technical Field

The utility model relates to an elevator design field especially relates to a weight variable elevator counter weight.

Background

Along with the development of science and technology, the elevator is used more and more, traditional traction type elevator goes up and down and is generally realized through traction chain connection elevator counter weight and elevator car, the counter weight generally adopts solid materials such as iron plate, cement piece, and the weight of counter weight is fixed this moment, but the weight of elevator car changes along with passenger's change, if the passenger quantity increases in the car, the balance of the weight of car and counter weight is broken, and tow motor power loss grow this moment, to dragging the power requirement of motor higher simultaneously. Therefore, the energy conservation of the elevator in operation is still a great problem, and the variable counterweight principle is researched, namely, a variable counterweight is added on the basis of fixing the counterweight of the elevator, so that the balance coefficient is improved, and the energy conservation is realized. However, it is a critical issue how to change the counterweight easily and quickly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a weight variable elevator counter weight can solve one or more among the above-mentioned problem.

According to the utility model discloses an aspect provides a weight variable elevator counter weight, including support body, balancing weight and hydraulic system, hydraulic system includes inside water tank, outside water tank, solenoid valve, water pump and motor, balancing weight and inside water tank are all installed in the support body, the water pump is connected with the motor, the outside water tank of one end of water pump is connected, and the other end is connected with inside water tank, the one end of solenoid valve is connected with outside water tank, and the other end is connected with inside water tank.

The utility model has the advantages that: the balancing weight is installed and is provided the counter weight of fixed weight in the frame body, and hydraulic system can change the weight of inside water tank according to the change of passenger's weight in the car to make the weight of whole counter weight change. The motor provides power for the operation of the water pump to drive the water pump to work. The water pump pumps water in the external water tank into the internal water tank, and the weight of the internal water tank is increased. The solenoid valve is used for controlling the water of the inner water tank to flow out to the outer water tank, and the weight of the inner water tank is reduced. The inside water tank is located the balancing weight, and the weight of inside water tank is changed through the volume that changes incasement water to inside water tank, changes the weight of whole counter weight simultaneously. The outside water tank provides the water source, when inside water tank needs to increase weight, draws water the inside water tank of area from outside water tank, when inside water tank needs to subtract heavy, deposits in the outside water tank from inside water tank drainage. The utility model discloses a set up hydraulic system, can be according to the change of passenger's weight in the elevator car, come the weight of corresponding adjustment counter weight, make the weight of counter weight the same with the weight of car, make car and counter weight be in weight balance's state, can reduce traction motor's loss, realize energy saving.

In some embodiments, the top surface of the inner water tank is provided with a first air hole, the frame body is provided with a second air hole, and the first air hole is communicated with the second air hole. Through first gas pocket, inside water tank is linked together with the support body is inside, through the second gas pocket, the support body is inside to be linked together with the outside, and first gas pocket is linked together with the second gas pocket, makes the air in the inside water tank be linked together with the outside, makes the atmospheric pressure in the inside water tank the same with outside atmospheric pressure. The first air hole is communicated with the second air hole, so that the air pressure of the internal water tank is the same as the external air pressure, and the water pump can pump water into the internal water tank.

In some embodiments, the rack further comprises a gravity switch, the gravity switch is mounted on the rack body, and the gravity switch is electrically connected with the motor. The weight switch is used for detecting the weight of balancing weight and inside water tank, and passenger's weight increases in the car, and the weight switch detects whole balancing weight and is less than car weight, and the gravity switch is closed, and the motor starts, goes into inside water tank through the water pump with the water pump in the outside water tank, increases the weight of inside water tank, and the weight until whole balancing weight is the same with the weight of car. When the gravity switch detects that the weight of the integral counterweight is larger than the weight of the lift car, the gravity switch is switched off, the electromagnetic valve is switched on, and water in the internal water tank flows out of the external water tank until the weight of the integral counterweight is the same as the weight of the lift car.

In some embodiments, the hydraulic system further comprises a check valve provided with a water inlet connected to the water pump and a water outlet connected to the internal water tank. When using the water pump to pump into water to inside water tank, prevent that water backward flow from to the water pump, cause the harm to the water pump.

In some embodiments, the hydraulic system further comprises an overflow valve, one end of the overflow valve being connected to the water pump and the other end being connected to the external water tank. When the water pump pumps water to the internal water tank, the internal water tank or the pipeline can not timely receive and contain water pumped by the water pump, and the overflow valve can enable redundant water pumped by the water pump to flow back to the external water tank, so that the water pump is protected from being normally used.

In some embodiments, the traction device further comprises a traction sheave mounted on the top of the frame body. The traction sheave is used for mounting and lifting the frame body.

In some embodiments, the rack further comprises a buffer mounted at the center of the bottom of the rack. The buffer plays a role in buffering and protecting when the balance weight falls.

Drawings

Fig. 1 is a schematic structural view of a weight-variable elevator counterweight according to an embodiment of the present invention.

Fig. 2 is a schematic view of a hydraulic system of the weight variable elevator counterweight of fig. 1.

Fig. 3 is an enlarged view of a of the weight variable elevator counterweight of fig. 2.

Detailed Description

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

Referring to fig. 1 to 3, the utility model discloses a weight variable elevator counter weight, including support body 1, balancing weight 2, hydraulic system 3, gravity switch 4, traction sheave 5 and buffer 6, balancing weight 2 passes through the bolt and installs in support body 1, and traction sheave 5 installs at support body 1 top, and buffer 6 installs the central authorities in support body 1 bottom.

The hydraulic system 3 comprises an internal water tank 31, an external water tank 32, an electromagnetic valve 33, a water pump 34, a motor 35, an overflow valve 37 and a one-way valve 36, wherein the internal water tank 31 is installed in the frame body 1 through bolts and is positioned above the balancing weight 2. The motor 35 is connected with the water pump 34 through a bearing, the check valve 36 is provided with a water inlet and a water outlet, one end of the water pump 34 is connected with the external water tank 32 through a pipeline, the other end of the water pump is connected with the water inlet of the check valve 36 through a pipeline, and the water outlet of the check valve 36 is connected with the internal water tank 31 through a pipeline. The solenoid valve 33 has one end connected to the inner tank 31 through a pipe and the other end connected to the outer tank 32 through a pipe. The relief valve 37 is connected at one end to the water pump 34 through a pipe and at the other end to the external water tank 32 through a pipe.

Gravity switch 4 installs in the framework, is located the below of balancing weight 2, and gravity switch 4 carries out electric connection with motor 35 through the wire.

The top surface of the inner water tank 31 is provided with a first air hole 311, the frame body 1 is provided with a second air hole 11, and the first air hole 11 is communicated with the second air hole 311, so that the air pressure of the inner water tank 31 is the same as the external air pressure.

The utility model discloses when using, the passenger changes in the car, when the whole weight of car increases, gravity switch 4 detects when balancing weight 2 and inside water tank 31's weight is less than the weight of car, gravity switch 4 closed motor 35 starts, motor 35 drives the operation of water pump 34, water pump 34 is gone into inside water tank 31 with the water of outside water tank 32 through 36 pump of check valve, make the weight of inside water tank 31 increase, when balancing weight 2 is the same with the weight of inside water tank 31 with the weight of car, gravity switch 4 disconnection. The water pump 34 stops pumping water.

When the weight of the whole cage is reduced, the solenoid valve 33 is opened, the water in the inner water tank 31 flows to the outer water tank 32 through the solenoid valve 33, so that the weight of the inner water tank 31 is reduced, and when the weight of the counterweight 2 and the weight of the inner water tank 31 are the same as the weight of the cage, the solenoid valve 33 is closed, and the water in the inner water tank 31 stops flowing out.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. Weight variable elevator counter weight, its characterized in that, including support body (1), balancing weight (2) and hydraulic system (3), hydraulic system (3) include inside water tank (31), outside water tank (32), solenoid valve (33), water pump (34) and motor (35), balancing weight (2) and inside water tank (31) are all installed in support body (1), water pump (34) are connected with motor (35), the outside water tank (32) of one end of water pump (34) are connected, and the other end is connected with inside water tank (31), the one end of solenoid valve (33) is connected with outside water tank (32), and the other end is connected with inside water tank (31).

2. The weight-variable elevator counterweight according to claim 1, wherein the top surface of the inner water tank (31) is provided with a first air hole (311), the frame body (1) is provided with a second air hole (11), and the first air hole (311) is communicated with the second air hole (11).

3. The weight-variable elevator counterweight according to claim 1, further comprising a gravity switch (4), wherein the gravity switch (4) is mounted on the frame body (1), and the gravity switch (4) is electrically connected to the motor (35).

4. Variable weight elevator counterweight according to claim 1, characterized in that the hydraulic system (3) further comprises a one-way valve (36), the one-way valve (36) being provided with an inlet (361) and an outlet (362), the inlet (361) being connected to a water pump (34) and the outlet (362) being connected to the inner water tank (31).

5. Variable weight elevator counterweight according to claim 1, characterized in that the hydraulic system (3) further comprises a relief valve (37), one end of the relief valve (37) being connected to a water pump (34) and the other end being connected to an external water tank (32).

6. The variable weight elevator counterweight according to claim 1, further comprising a traction sheave (5), the traction sheave (5) being mounted on top of the frame (1).

7. The weight-variable elevator counterweight according to claim 1, further comprising a buffer (6), wherein the buffer (6) is installed at the center of the bottom of the frame body (1).