CN107186395B - A kind of cooling protection device for steel bar meter - Google Patents

Abstract

The invention discloses a cooling protection device for a steel bar gauge, which includes a cooling box, a water pump, a water storage tank, two temperature control switches, two sections of water pipes and other parts. The cooling box is fixed on the steel bar gauge during welding operations. The two temperature control switches are fixed on the connecting rods at both ends of the steel bar meter. The water storage tank is the water storage device of the device. The water pump is placed inside the water storage tank. The water outlet of the water pump is connected to the water pipe through a water pipe. The water inlet holes on the cooling box are connected. When the temperature of the connecting rod of the steel bar meter reaches the set temperature, the temperature control switch is closed, the circuit is connected, the water pump starts to supply water to the cooling box, and the steel bar meter is cooled and protected through flowing water. , when the temperature of the connecting rod drops below the set temperature, the temperature control switch is turned off, and the device stops water supply and cooling. The invention is an automatic cooling protection device based on the temperature of the instrument, which has better cooling and protection effects than traditional methods.

Description

A kind of cooling protection device for steel bar meter

Technical field

The invention specifically relates to a cooling protection device for steel bar gauges.

Background technique

Safety monitoring is one of the important guarantee conditions to ensure project safety. As a monitoring instrument used to measure the stress of steel bars in reinforced concrete, the steel bar gauge is an important link in ensuring safety monitoring.

At present, the conventional installation method of the steel bar meter is to butt-weld the steel bar to be measured, and measure the average strain of a length of the steel bar to determine the stress on the steel bar. However, the high temperature generated during the welding process will increase the zero drift of the steel bar gauge, so effective cooling measures must be taken to protect the steel bar gauge.

The commonly used cooling methods are to use wet towels or running water for cooling. The operation is simple, but the temperature of the connecting rod cannot be well controlled. The amount and timing of the water used cannot be accurately controlled, and the cooling effect cannot be well controlled.

At present, in the domestic market, during the welding and installation process of steel bar gauges, there has not been a device that can effectively cool down and protect the instrument from damage, and at the same time realize automatic cooling based on real-time dynamic monitoring of the temperature of the instrument.

Contents of the invention

In order to solve the above problems, the present invention proposes a cooling protection device for the steel bar gauge. This device uses a temperature control switch to control the opening of the water pump according to the temperature of the connecting rod of the steel bar gauge, and performs automatic flow cooling of the steel bar gauge. The device can be used to achieve the goal of welding steel bars. The purpose of automatic cooling protection for the steel bar meter is achieved during the metering process.

In order to achieve the above objects, the present invention adopts the following technical solutions:

A cooling protection device for a steel bar gauge, including a cooling box, a temperature control switch, a water pump, a water storage tank and a water pipe. The cooling box is fixed on the steel bar gauge; the temperature control switch is fixed on the connecting rods at both ends of the steel bar gauge; the water pump is placed on the storage tank. Inside the water tank, the water outlet of the water pump is connected to the water inlet hole on the cooling box through the water inlet pipe. When the temperature of the connecting rod reaches the set temperature, the temperature control switch is closed, the circuit is connected, and the water pump starts to supply water to the cooling box, and the steel bar meter is measured through the flowing water. Cooling protection, when the temperature of the connecting rod drops below the set temperature, the temperature control switch is turned off and the water supply is stopped for cooling.

Further, the cooling box is fixed on the steel bar meter. The cooling box has an openable box-like structure with an absorbent sponge inside, which is wrapped around the steel bar meter. There is a water inlet hole on one side and a drainage hole on the other side. , the water inlet hole Minghao is used to install the water inlet pipe, and the drainage hole is used to install the drainage pipe. At the same time, a steel bar meter connecting rod and a steel bar meter wire hole are reserved to ensure the airtightness after closing the upper cooling box. To achieve effective cooling effect.

Furthermore, the box body is provided with a lock, and during the cooling operation, the cooling box is closed and the lock is fastened to the box lid.

Furthermore, the contact surface between the box body and the lid is provided with a sealing strip and a sealing groove to ensure sealing.

Further, along the direction of water flow, the water inlet hole is arranged on one side of the box cover; the drainage hole is arranged on the box body on the opposite side; the purpose of this arrangement is to ensure that the water flow can completely flow through the entire steel bar gauge. , to ensure the cooling effect and speed.

Furthermore, the temperature control switch is fixed on the connecting rods at both ends of the steel bar meter at both ends of the cooling box during welding operations. Since the maximum temperature required for the steel bar meter installation cannot exceed 60°C, a temperature control switch with an induction temperature of 50°C is selected. The KSD301 series temperature control switch is used as the control switch. During normal operation, the bimetallic sheet is in a free state and the contacts are in a disconnected state. When the temperature of the connecting rod reaches 50°C, the bimetallic sheet is heated to generate internal stress and acts quickly, closing the contacts. , turn on the circuit, the water pump starts to work, supplies water to the cooling box and starts the cooling operation, thereby controlling the temperature. When the connecting rod cools to the reset temperature, the contacts automatically open and return to normal working condition.

Further, the water pump is a water supply device for the cooling device. Preferably, the water pump is a micro submersible water pump. When used, it is placed directly inside the water storage tank and is connected to the cooling box through a water supply pipe. When the temperature of the connecting rod reaches 50°C, The temperature control switch is closed, the circuit is connected, and the water pump starts to operate to supply water to the cooling box.

Furthermore, the water storage tank, which is the water storage device of the cooling device, is provided with a transparent water volume scale, which can reflect the water level in real time, add water in time, and prevent the water pump from idling due to lack of water.

Furthermore, the water pipe is a plastic hose, and the length and placement can be flexibly adjusted according to actual operating requirements.

Further, a temperature control switch is respectively provided on the connecting rods at both ends of the steel bar meter, and the two temperature control switches are arranged in parallel; any temperature control switch can connect the circuit when closed, and only two temperature control switches can turn on the circuit. It will be disconnected only when the circuit is disconnected, and the water supply from the water pump will stop, effectively ensuring the cooling protection effect.

The working principle and cooling method of the present invention are as follows:

When welding steel bars, the welding operation causes the temperature of the connecting rod of the steel bar to rise. A temperature control switch is installed on the connecting rod. When the temperature of the connecting rod reaches the sensing temperature of 50°C, the temperature control switch closes, the circuit is turned on, and the water pump starts pumping water through the water supply pipe. The cooling box supplies water. An absorbent sponge is installed inside the cooling box and wrapped around the steel bar meter. At the same time, the cooling box is equipped with a drainage pipe to ensure that the steel bar meter is in a flowing water environment to achieve a good cooling effect. The circuit used in this device is a parallel circuit. A temperature control switch is set on the connecting rod at both ends of the steel bar meter. If any temperature control switch is closed, the circuit can be connected. Only when both temperature control switches are open, the circuit will be disconnected and the water supply of the water pump will stop, effectively ensuring cooling. Protective effect.

The beneficial effects of the present invention are:

1. The present invention is an automatic cooling protection device. When all parts of the device are placed in place during welding operations, the device can automatically perform cooling operations according to the temperature of the connecting rod of the steel bar;

2. The cooling box of the present invention is equipped with an absorbent sponge inside to fully wrap the steel bar meter. There are water inlet and drainage holes at both ends of the cooling box so that the steel bar meter is in a flowing water environment;

3. The circuit of the present invention is a parallel circuit. If the temperature of either end of the connecting rod at both ends of the steel bar meter exceeds 50°C, the cooling operation will begin. At the same time, the temperature will be lower than 50°C and the water supply will be stopped to ensure comprehensive protection of the steel bar meter;

4. The structure of the present invention is simple, easy to disassemble and assemble, and can be flexibly adjusted according to the actual construction site.

Description of drawings

The description and drawings that constitute a part of this application are used to provide a further understanding of this application. The illustrative embodiments and their descriptions of this application are used to explain this application and do not constitute an improper limitation of this application.

Figure 1 is a schematic diagram of the overall structure of the present invention;

Figure 2 is a schematic diagram of the cooling box of the present invention;

Figure 3 is a schematic diagram of the water tank switch of the present invention;

Figure 4 is a schematic diagram of the temperature control switch of the present invention;

Figure 5 is a schematic diagram of the water pump of the present invention.

Among them, 1-1, cooling box, 1-2, water storage tank, 1-3, temperature control switch, 1-4, water inlet pipe, 1-5, drainage pipe, 1-6, steel bar gauge connecting rod, 1- 7. Reinforcement gauge wire, 2-1, box body, 2-2, box cover, 2-3, absorbent sponge, 2-4, lock, 2-5, sealing strip, 2-6, sealing groove, 2 -7. Hinge, 2-8. Connecting rod hole, 2-9. Drainage hole, 2-10. Wire hole, 3-1. Box body, 3-2. Scale mark, 4-1. Wiring hole, 4 -2. Induction piece, 4-3. Control box, 5-1. Water pump, 5-2. Water inlet, 5-3. Water outlet, 5-4. Base.

Detailed ways

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meanings commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are also intended to include the plural forms unless the context clearly indicates otherwise. Furthermore, it will be understood that when the terms "comprises" and/or "includes" are used in this specification, they indicate There are features, steps, operations, means, components and/or combinations thereof.

As introduced in the background art, the commonly used cooling method for steel bar gauges in the prior art is to use wet towels or running water to cool. The operation is simple, but the temperature of the connecting rod cannot be well controlled, and it cannot be adjusted according to the amount and timing of the water used. To achieve accurate control, the cooling effect cannot be well controlled. In order to solve the above technical problems, this application proposes a steel bar meter cooling protection device and method.

In a typical implementation of the present application, as shown in Figure 1, the device is a steel bar meter cooling protection device, including a cooling box 1-1, a water storage tank 1-2, a temperature control switch 1-3, and a water pump. 5-1, water inlet pipe 1-4 and other main parts; the cooling box 1-1 is fixed on the steel bar meter; the temperature control switch 1-3 is fixed on the connecting rods at both ends of the steel bar meter; the water pump 5-1 is placed in the water storage tank Inside 1-2, the water outlet of water pump 5-1 is connected to the water inlet hole on the cooling box 1-1 through the water inlet pipe. When the temperature of the connecting rod reaches the set temperature, the temperature control switch is closed, the circuit is connected, and the water pump starts to supply water to the cooling box. , the steel bar meter is cooled and protected by flowing water. When the temperature of the connecting rod drops below the set temperature, the temperature control switch is turned off and the water supply is stopped for cooling.

The cooling box 1-1 is an openable box-like structure, including a box body 2-1, a box cover 2-2, an absorbent sponge 2-3 and other main parts. The box body 2-1 and the box cover 2-2 pass through the hinge 2- 7 connections, easy to open and close; the absorbent sponge 2-3 fills the inside of the cooling box 1-1 to ensure that the steel bar meter can be completely wrapped; the cooling box 1-1 has connecting rod holes 2-8 and wire holes 2-10. During the cooling operation, the steel bar gauge connecting rod 1-6 and the steel bar gauge wire 1-7 are placed outside the cooling box 1-1 along the reserved holes; the box body 2-1 is provided with a lock 2-4 to close and cool down during the cooling operation. Box 1-1, fasten the lock 2-4 on the box lid 2-2, and at the same time, the contact surface between the box body 2-1 and the box lid 2-2 is provided with a sealing strip 2-5 and a sealing groove 2-6 to ensure Sealing effect during thermal insulation operation; drainage holes 2-9 and water inlet holes are provided on both sides of the cooling box 1-1 to ensure that the steel bars are in a flowing water environment during the cooling operation.

The water storage tank 1-2 has a water storage tank type structure, and a transparent scale line 3-2 is provided on the tank body 3-1 to facilitate observation of the internal water level of the water storage tank 1-2.

The temperature control switch 1-3 is the controller of the device. The wiring hole 4-1 forms a parallel circuit with the water pump 5-1 through wires. During the cooling operation, the sensor piece 4-2 is closely attached to feedback the real-time temperature. The control box feedbacks based on the sensor piece. The steel bar meter connecting rod 1-6 has a temperature switching circuit. If the temperature is higher than 50℃, the circuit will be closed, and if the temperature is lower than 50℃, the circuit will be opened.

There are two temperature control switches 1-3. One temperature control switch is respectively provided on the connecting rods at both ends of the steel bar meter. The two temperature control switches are set in parallel. The circuit can be connected by closing any one of the temperature control switches. Only two of the temperature control switches can be connected. The circuit will be disconnected only when all the temperature control switches are disconnected, and the water supply from the water pump will stop, effectively ensuring the cooling protection effect.

The water pump 5-1 is submersibly installed inside the water storage tank 1-2. When the circuit is closed, the water pump 5-1 pumps the water in the water storage tank 1-2 to the cooling box 1-1 through the water inlet pipe 1-4. Plan to carry out flow cooling operations.

Example

It is assumed that the steel bar gauge used in the project is a vibrating wire steel bar gauge, which is fixed with the steel bar to be measured by butt welding.

First, process the appropriate cooling box 1-1 according to the specifications of the steel bar meter, ensuring that the size of the cooling box 1-1, the reserved steel bar meter connecting rod holes 2-8, and the steel bar meter wire holes 2-10 reserved for the cooling box 1-1 are all attached Calculate the corresponding parameters of the steel bars used in the combined project.

Place the steel bar meter in the cooling box 1-1, and connect the steel bar meter connecting rods 1-6 and the steel bar meter wires 1-7 along the steel bar meter connecting rod holes 2-8 and the steel bar meter wire holes reserved in the cooling box 1-1. 2-10 extends to the outside of the cooling box 1-1, and fastens the lock 2-4 on the box body 2-1 to the box lid 2-2.

Fix the two temperature control switches 1-3 on the steel bar meter connecting rods 1-6 at both ends of the cooling box 1-1 respectively, and connect the two temperature control switches 1-3 to the water pump 5-1 and the power supply according to the parallel circuit.

Fix the water pump 5-1 inside the water storage tank 1-2, connect the water pump outlet 5-3 to the water inlet hole on the cooling box 1-1 through the water inlet pipe 1-4, and install the drainage pipe 1-5 in the Add appropriate amount of clean water to the drainage hole 2-9 on the cooling box 1-1 inside the water storage tank 1-2.

Then we start to weld the steel bar gauge and weld it with the steel bars. During the welding process, once the temperature control switch 1-3 senses that the temperature of the steel bar gauge connecting rod 1-6 exceeds 50°C, the temperature control switch 1-3 is closed, the circuit is connected, and the water pump 5-1 starts to supply water to the cooling box 1-1 through the water inlet pipe 1-4, and starts the flow cooling operation.

When the temperatures detected by the two temperature control switches 1-3 are both below 50°C, the temperature control switch 1-3 is turned off, the circuit is disconnected, the water pump 5-1 stops water supply, and the water cooling operation stops.

According to the actual situation, open the lock 2-4 after a period of time and remove the cooling box 1-1.

From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

1. The present invention is an automatic cooling protection device. When all parts of the device are placed in place during welding operations, the device can automatically perform cooling operations according to the temperature of the connecting rod of the steel bar;

2. The cooling box of the present invention is equipped with an absorbent sponge inside to fully wrap the steel bar meter. There are water inlet and drainage holes at both ends of the cooling box so that the steel bar meter is in a flowing water environment;

3. The circuit of the present invention is a parallel circuit. If the temperature of either end of the connecting rod at both ends of the steel bar meter exceeds 50°C, the cooling operation will begin. At the same time, the temperature will be lower than 50°C and the water supply will be stopped to ensure comprehensive protection of the steel bar meter;

4. The structure of the present invention is simple, easy to disassemble and assemble, and can be flexibly adjusted according to the actual construction site.

Although the specific embodiments of the present invention have been described above in conjunction with the accompanying drawings, they do not limit the scope of protection of the invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to perform creative work. Various modifications or variations that can be made are still within the protection scope of the present invention.

Claims (8)

1. The cooling protection device for the reinforcement meter is characterized by comprising a cooling box, a temperature control switch, a water pump and a water storage tank, wherein the cooling box is fixed on the reinforcement meter; the temperature control switch is fixed on the connecting rods at two ends of the reinforcing steel bar meter; the water pump is placed in the water storage tank, the water outlet of the water pump is connected with the water inlet hole on the cooling box through the water inlet pipe, when the temperature of the connecting rod reaches the set temperature, the temperature control switch is closed, the control circuit of the water pump is communicated, the water pump starts to supply water to the cooling box, the steel bar gauge is cooled and protected through flowing water, when the temperature of the connecting rod is reduced below the set temperature, the temperature control switch is automatically opened, the control circuit of the water pump is opened, and water supply and cooling are stopped;

the cooling box is of an openable box-shaped structure and comprises a box body, a box cover and a water absorbing sponge, wherein the water absorbing sponge is wrapped around the steel bar meter, water inlet holes and water outlet holes are reserved at two ends of the cooling box, so that the steel bar meter is in a running water environment, the water inlet holes are used for installing a water inlet pipe, the water outlet holes are used for installing a water outlet pipe, meanwhile, steel bar meter connecting rod holes and steel bar meter wire guide holes are reserved on the cooling box, the steel bar meter connecting rod extends to the outside of the cooling box along the steel bar meter connecting rod holes reserved in the cooling box, and the connecting rod holes are attached to the steel bar meter;

the connecting rods at two ends of the reinforcing steel bar meter are respectively provided with a temperature control switch, the two temperature control switches are arranged in parallel, and the sensing piece is tightly attached to feed back real-time temperature during cooling operation.

2. The cooling protection device for the reinforcing steel bar meter of claim 1, wherein the box body is provided with a lock catch, and the cooling box is closed during cooling operation, and the lock catch is buckled on the box cover.

3. The cooling protection device for the reinforcing steel bar meter of claim 1, wherein the contact surface of the box body and the box cover is provided with a sealing rubber strip and a sealing groove for ensuring sealing.

4. The cooling protection device of the reinforcing steel bar meter according to claim 1, wherein the water inlet hole is arranged at one side of the box cover along the water flowing direction; the drain holes are arranged on the box body at the opposite sides.

5. The cooling protection device of the reinforcing steel bar meter according to claim 1, wherein the temperature control switch is a temperature control switch with an induction temperature of 50 ℃, the bimetallic strip of the temperature control switch is in a free state and the contact is in an off state during normal operation, when the temperature of the connecting rod reaches 50 ℃, the bimetallic strip is heated to generate internal stress to rapidly act, the contact is closed, a control circuit of the water pump is connected, and the water pump starts to work to supply water to the cooling box to start cooling operation, so that the temperature control function is realized; when the connecting rod is cooled to the reset temperature, the contact is automatically opened, and the normal working state is restored.

6. The bar gauge cooling protection device of claim 1 wherein the water pump is a miniature submersible water pump.

7. A reinforcing bar meter cooling protection as set forth in claim 1, wherein the water storage tank is a water storage device of the cooling device, and the water tank is provided with transparent water volume graduation marks.

8. The cooling and protecting device for a reinforcing steel bar meter according to claim 1, wherein the water inlet pipe and the water outlet pipe are colloid hoses.