Antifreeze solution changing machine

Abstract

The utility model relates to automobile anti -icing fluid replacement technical field discloses an anti -icing fluid replacement machine, including bearing mechanism, bearing mechanism includes first horizontal plate and the second horizontal plate of being located first horizontal plate top, be provided with the liquid storage mechanism between first horizontal plate and second horizontal plate, the upper portion of second horizontal plate is provided with control mechanism, the liquid storage mechanism includes the first tub and the second tub of parallelly arranged, and the first tub is new liquid tub, and the second tub is old liquid tub. The utility model can efficiently, completely complete the replacement of automobile coolant, avoid new and old liquid mixing, ensure cooling system operation stability, independent new liquid and old liquid pipeline design, prevent cross -contamination, and realize pressurization and evacuation through rotary valve and air source cooperation, and the operation is simple and the sealing property is good, reduces human error equipment structure compact, is applicable to a variety of vehicle models, greatly shortens maintenance time, improves liquid exchange efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive antifreeze replacement technology, and in particular to an antifreeze replacement machine. Background Technology

[0002] Antifreeze, or simply antifreeze, is a coolant with added special ingredients. It is primarily used in liquid-cooled engine cooling systems and can prevent freezing in winter and boiling in summer. It also has excellent anti-scaling and anti-corrosion properties throughout the year. As a consumable item for vehicles, antifreeze needs to be replaced regularly.

[0003] Traditionally, automotive coolant is changed by gravity drainage. After the engine has completely cooled down, first open the radiator cap and expansion cap, then place a drain pan under the drain plug at the bottom of the radiator, loosen the plug to drain the old coolant, tighten the plug after the old coolant has drained, and then add new coolant until the coolant level is visible at the radiator opening.

[0004] However, this method has the following problems in actual operation: First, the liquid replacement is not thorough, and the old liquid residue is large, which can easily cause the old and new liquids to mix and affect the cooling effect.

[0005] Secondly, the lack of quantitative control during the filling process can easily lead to excessively high or insufficient liquid levels.

[0006] Third, the operation process is cumbersome and time-consuming, and requires dedicated personnel to monitor and observe, which is more labor-intensive and time-consuming than replacing professional equipment. Utility Model Content

[0007] The purpose of this invention is to provide an antifreeze replacement machine that can thoroughly replace the antifreeze and control the flow rate of old and new antifreeze by adjusting the pressure. The entire operation is efficient and fast.

[0008] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an antifreeze replacement machine, including a support mechanism, the support mechanism including a first horizontal plate and a second horizontal plate located above the first horizontal plate, a liquid storage mechanism is provided between the first horizontal plate and the second horizontal plate, and a control mechanism is provided on the upper part of the second horizontal plate.

[0009] By adopting the above technical solution, the liquid storage mechanism is used to store new and old coolant, and the control mechanism is used to control the operation of the entire equipment, including vacuum extraction from the old liquid tank, liquid transportation of new and old coolant, and pressure regulation in the new and old liquid tanks, ensuring that the replacement process is efficient and safe.

[0010] A further feature of this invention is that the liquid storage mechanism includes a first tubing and a second tubing arranged in parallel.

[0011] A further feature of this invention is that the first tubing is a new liquid tank, and the second tubing is an old liquid tank.

[0012] By adopting the above technical solution, the new coolant tank is used to store clean coolant to be added, and the old coolant tank is used to collect waste antifreeze discharged from the vehicle's cooling system.

[0013] The present invention is further configured such that: the control mechanism includes a control box, a control panel is provided on the front of the control box, a vacuum generator is fixedly provided on the back of the control panel, a new liquid gauge and an old liquid gauge are embedded in the control panel, a first rotary valve for adjusting the pressure value in the new liquid tank is provided next to the new liquid gauge, and a second rotary valve for adjusting the pressure value in the old liquid tank is provided next to the old liquid gauge.

[0014] By adopting the above technical solution, the pressure applied to the old or new liquid tank can be controlled by controlling the angle of rotation of the first rotary valve from the OFF position to the left or right. The vacuum level in the old liquid tank can be controlled by controlling the angle of rotation of the second rotary valve from the OFF position to the left. The pressure applied to the old liquid tank can be controlled by controlling the angle of rotation of the second rotary valve from the OFF position to the right.

[0015] A further feature of this invention is that: a gas source interface is provided on one side panel of the control box, and an air supply pipe is connected to the gas source interface; a new liquid tank air inlet is provided at the second horizontal plate corresponding to the new liquid tank, and an old liquid tank air inlet is provided at the second horizontal plate corresponding to the old liquid tank, both located inside the control box.

[0016] By adopting the above technical solution, the setting of air inlets for the new and old coolant tanks allows the control box to be connected to the new and old coolant tanks via air lines. By controlling the air lines, the coolant replacement process can be automated, improving replacement efficiency and accuracy.

[0017] A further feature of this invention is that a vacuum interface, located inside the control box and connected to the vacuum generator pipeline, is provided at the second horizontal plate corresponding to the old liquid tank.

[0018] By adopting the above technical solution, the vacuum interface is connected to the air inlet of the old liquid tank through the internal air passage, ensuring that the negative pressure is effectively transmitted to the inside of the old liquid tank.

[0019] The present invention is further configured such that: a first oil delivery pipe and a second oil delivery pipe are respectively provided in the new liquid tank and the old liquid tank; a new liquid filling port located in the control box and connected to the first oil delivery pipe is also provided at the second horizontal plate corresponding to the new liquid tank; and a new liquid filling pipe is connected to the end of the new liquid filling port away from the first oil delivery pipe.

[0020] The second horizontal plate corresponding to the old liquid tank also has an old liquid filling port located inside the control box and connected to the second oil supply pipe. The end of the old liquid filling port away from the second oil supply pipe is connected to the old liquid return pipe.

[0021] By adopting the above technical solution, the setting of the first oil supply pipe and the new fluid filling port enables the new coolant to be accurately delivered from the new fluid tank to the vehicle cooling system through the new fluid filling pipe. The setting of the second oil supply pipe and the old fluid filling port enables the old coolant to flow accurately from the vehicle cooling system back to the old fluid tank through the old fluid return pipe.

[0022] A further feature of this invention is that a first through hole and a second through hole are provided on one side plate of the control box for the new fluid filling pipe and the old fluid return pipe to pass through, and a hand valve is provided at the end of the new fluid filling pipe and the old fluid return pipe away from the antifreeze replacement machine.

[0023] By adopting the above technical solution, the setting of the first through hole and the second through hole provides a dedicated channel for the new fluid filling pipe and the old fluid return pipe. The hand valve is set at the end of the new fluid filling pipe and the old fluid return pipe away from the antifreeze replacement machine, which makes it convenient for operators to directly open or close the pipeline during equipment operation or maintenance.

[0024] A further feature of this invention is that a new coolant inlet is provided at the second horizontal plate corresponding to the new coolant tank, and an old coolant inlet is also provided at the second horizontal plate corresponding to the new coolant tank. Both the new coolant inlet and the old coolant inlet are provided with sealing caps.

[0025] By adopting the above technical solution, an appropriate amount of coolant is added to the new coolant tank through the new coolant inlet.

[0026] A further feature of this invention is that a support mechanism is fixedly provided between the first horizontal plate and the second horizontal plate. The support mechanism includes several vertically arranged support columns and support rods, and several omnidirectional wheels are symmetrically arranged at the bottom of the first horizontal plate.

[0027] By adopting the above technical solution, the support columns and support rods cooperate with each other to enhance the structural stability between the first horizontal plate and the second horizontal plate. The design of the casters allows the equipment to be easily moved to different work positions and adapt to a variety of working environments.

[0028] The beneficial effects of this utility model are:

[0029] 1. The equipment in this application can efficiently and thoroughly replace automotive coolant, avoid mixing of new and old fluids, ensure stable operation of the cooling system, and prevent cross-contamination by designing independent new and old fluid pipelines.

[0030] 2. Pressurization and vacuuming are achieved by rotating the valve in conjunction with the air source. The operation is simple and the sealing is good, reducing human error. The equipment has a compact structure, is suitable for various vehicle models, greatly shortens maintenance time, and improves fluid change efficiency.

[0031] 3. The equipment is equipped with a visual new and old liquid gauge, which facilitates real-time monitoring of the operation process and ensures that the liquid replacement process is safe and controllable. All pipeline interfaces adopt a quick-connect design to adapt to different specifications of connectors, improving connection reliability. The entire replacement process can be completed within 30 minutes, significantly improving maintenance efficiency and reducing labor intensity. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a frontal schematic diagram of the overall structure of an antifreeze replacement machine according to the present invention;

[0034] Figure 2 This is a schematic diagram of the structure of an antifreeze replacement machine according to the present invention, showing the connection of a vent pipe, a new fluid filling pipe, and a returned old fluid filling pipe;

[0035] Figure 3 This is a schematic diagram of the internal structure of the control box of an antifreeze replacement machine according to this utility model;

[0036] Figure 4 This is a schematic diagram of the overall structure of the back of an antifreeze replacement machine according to this utility model.

[0037] Figure 5 This is a front view of the control panel of an antifreeze replacement machine according to the present invention.

[0038] Figure 6 This diagram illustrates the process of adding an appropriate amount of coolant to a new coolant tank via a funnel during the operation of an antifreeze replacement machine according to this invention.

[0039] Figure 7 This is a schematic diagram showing the Y-shaped connector used to connect the antifreeze replacement machine to the vehicle's internal cooling system during operation.

[0040] Figure 8 This is a schematic diagram showing the PU tube connected to the conical connector extending into the auxiliary water tank during the operation of an antifreeze replacement machine according to this utility model.

[0041] Figure 9This is a schematic diagram illustrating how the coolant is replaced by disconnecting the water supply pipe inside the vehicle during operation of the antifreeze replacement machine according to this utility model.

[0042] Figure 10 This is a schematic diagram of an antifreeze replacement machine according to the present invention, in which the old coolant in the old coolant tank is drained into an external tank.

[0043] Figure 11 This is a schematic diagram of an antifreeze replacement machine according to the present invention, showing how new coolant is discharged from the new coolant tank to an external tank.

[0044] In the diagram: 1. Supporting mechanism; 101. First horizontal plate; 102. Second horizontal plate; 2. Liquid storage mechanism; 201. First tubing; 202. Second tubing; 203. New liquid tank; 204. Old liquid tank; 3. Control mechanism; 301. Control box; 302. Control panel; 303. Vacuum generator; 304. New liquid gauge; 305. Old liquid gauge; 306. First rotary valve; 307. Second rotary valve; 308. Gas source interface; 309. Ventilation. Pipes; 310. New liquid tank air inlet; 311. Old liquid tank air inlet; 312. Vacuum interface; 315. New liquid filling port; 316. New liquid filling pipe; 317. Old liquid filling port; 318. Old liquid return pipe; 319. First through hole; 320. Second through hole; 321. Hand valve; 322. New coolant inlet; 323. Old coolant inlet; 324. Sealing cap; 4. Support mechanism; 401. Support column; 402. Support rod; 403. Casters; Detailed Implementation

[0045] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0046] This utility model embodiment specifically provides an antifreeze replacement machine, including a support mechanism 1. The support mechanism 1 includes a first horizontal plate 101 and a second horizontal plate 102 located above the first horizontal plate 101. A liquid storage mechanism 2 is provided between the first horizontal plate 101 and the second horizontal plate 102. A control mechanism 3 is provided on the upper part of the second horizontal plate 102.

[0047] Specifically, the liquid storage mechanism 2 is used to store new and old coolant, and the control mechanism 3 is used to control the operation of the entire equipment, including vacuum extraction from the old liquid tank 204, liquid transportation of new and old coolant, and pressure regulation in the new liquid tank 203 and the old liquid tank 204, to ensure that the replacement process is efficient and safe.

[0048] Furthermore, the liquid storage mechanism 2 includes a first tubing 201 and a second tubing 202 arranged in parallel.

[0049] Furthermore, the first tubing 201 is a new liquid tubing 203, and the second tubing 202 is an old liquid tubing 204.

[0050] It should be noted that the new coolant tank 203 and the old coolant tank 204 have the same volume, are both transparent storage tanks, and are equipped with level markings to facilitate observation of coolant level changes during the filling and recycling process. The new coolant tank 203 is used to store clean coolant to be added, while the old coolant tank 204 is used to collect waste antifreeze discharged from the vehicle's cooling system.

[0051] Furthermore, the control mechanism 3 includes a control box 301, a control panel 302 is provided on the front of the control box 301, and a vacuum generator 303 for vacuuming is fixedly provided on the back of the control panel 302; a new liquid gauge 304 and an old liquid gauge 305 are embedded on the control panel 302 for displaying the pressure values ​​in the new liquid tank 203 and the old liquid tank 204 in real time; a first rotary valve 306 for adjusting the pressure value in the new liquid tank 203 is provided next to the new liquid gauge 304, and a second rotary valve 307 for adjusting the pressure value in the old liquid tank 204 is provided next to the old liquid gauge 305.

[0052] Specifically, in the automotive coolant replacement equipment, the vacuum generator 303 extracts air from the old coolant tank 204 through the vacuum interface 312, creating a negative pressure environment. This allows the old coolant in the engine cooling system to be drawn into the old coolant tank 204 through the old coolant return pipe 318. By adjusting the vacuum level, the old coolant in the automotive cooling system can be more thoroughly discharged, allowing the new coolant to smoothly fill all parts of the cooling system and ensuring the normal and efficient operation of the cooling system.

[0053] like Figure 5 As shown, rotating the first rotary valve 306 to the left pressurizes the old liquid tank 204, and rotating the first rotary valve 306 to the right pressurizes the new liquid tank 203.

[0054] It is worth noting that by controlling the angle at which the first rotary valve 306 rotates left or right from the OFF position, the pressure applied to the old liquid tank 204 or the new liquid tank 203 can be controlled, thereby achieving precise pressure regulation and avoiding the impact of excessively high or low pressure on the coolant replacement efficiency.

[0055] Rotating the second rotary valve 307 to the left evacuates the old liquid tank 204, while rotating it to the right pressurizes the old liquid tank 204.

[0056] It is worth noting that by controlling the angle of the second rotary valve 307 rotating to the left from the OFF position, the vacuum level inside the old liquid tank 204 can be controlled, ensuring a stable and efficient suction process and avoiding damage to the pipeline or liquid splashing due to excessive negative pressure. Conversely, by controlling the angle of the second rotary valve 307 rotating to the right from the OFF position, the pressure applied to the old liquid tank 204 can be controlled, facilitating the subsequent discharge and treatment of waste liquid inside the old liquid tank 204.

[0057] Furthermore, a gas source interface 308 is provided on one side panel of the control box 301, and an external air pipe 309 is connected to the gas source interface 308. A new liquid tank 203 air inlet is provided at the second horizontal plate 102 corresponding to the new liquid tank 203, and an old liquid tank 204 air inlet is provided at the second horizontal plate 102 corresponding to the old liquid tank 204, which is located inside the control box 301.

[0058] Specifically, the air source interface 308 is used to connect to an external compressed air source to provide power support for vacuuming and pressurized drainage, ensuring the stable operation of the vacuum generator 303 and the pressure regulation system.

[0059] The design of the air inlet for the new coolant tank 203 and the air inlet for the old coolant tank 204 allows the control box 301 to be connected to the new and old coolant tanks 204 via an air circuit. During the coolant replacement process, the control box 301 can use the pressure generated by the air source to drive the new coolant from the new coolant tank 203 into the vehicle's cooling system, while simultaneously drawing the old coolant from the vehicle's cooling system into the old coolant tank 204. By controlling the air circuit, the coolant replacement process can be automated, improving replacement efficiency and accuracy.

[0060] Furthermore, a vacuum interface 312, located inside the control box 301 and connected to the pipeline of the vacuum generator 303, is also provided at the second horizontal plate 102 corresponding to the old liquid tank 204.

[0061] Specifically, the vacuum interface 312 is connected to the air inlet of the old liquid tank 204 through an internal air passage, ensuring that negative pressure is effectively transmitted to the inside of the old liquid tank 204. The vacuum generator 303 then draws in the liquid, creating a stable negative pressure environment inside the old liquid tank 204. This allows waste liquid from the engine cooling system to be continuously extracted via the old liquid return pipe 318. This structural design achieves controllable suction force and stable operation, effectively preventing liquid backflow or pipe vibration caused by sudden airflow changes, ensuring a safe and reliable replacement process.

[0062] Furthermore, the new liquid tank 203 and the old liquid tank 204 are respectively provided with a first oil delivery pipe and a second oil delivery pipe. The new liquid tank 203 is also provided with a new liquid filling port 315 located in the control box 301 and connected to the first oil delivery pipe at the second horizontal plate 102. The end of the new liquid filling port 315 away from the first oil delivery pipe is connected to a new liquid filling pipe 316.

[0063] The old liquid tank 204 is also provided with an old liquid filling port 317 located inside the control box 301 and connected to the second oil supply pipe at the second horizontal plate 102. The end of the old liquid filling port 317 away from the second oil supply pipe is connected to the old liquid return pipe 318.

[0064] It should be noted that the first and second oil delivery pipes extend to the bottom of the new liquid tank 203 and the old liquid tank 204, respectively, to ensure that the liquid is delivered fully and completely.

[0065] In addition, both the new fluid line 316 and the old fluid return line 318 are transparent flexible tubes, making it easy to observe the flow of coolant; and the oil supply line and the filling port, as well as the filling port and the new fluid line 316 or the old fluid return line 318, are all connected in a sealed manner.

[0066] Specifically, the first oil supply pipe and the new fluid filling port 315 allow new coolant to be accurately delivered from the new fluid tank 203 to the vehicle's cooling system via the new fluid filling pipe 316. The second oil supply pipe and the old fluid filling port 317 allow the old coolant to flow accurately from the vehicle's cooling system back to the old fluid tank 204 via the old fluid return pipe 318. This ensures the certainty of the fluid flow direction during coolant replacement, avoids confusion, and ensures the smooth progress of the replacement operation.

[0067] Furthermore, a first through hole 319 and a second through hole 320 are provided on one side panel of the control box 301 for the new fluid pipe 316 and the old fluid pipe 318 to pass through. A hand valve 321 is provided at the end of the new fluid pipe 316 and the old fluid pipe 318 away from the antifreeze replacement machine.

[0068] Specifically, the first through hole 319 and the second through hole 320 provide dedicated channels for the new liquid pipe 316 and the old liquid return pipe 318, allowing the pipes to pass smoothly through the side plate of the control box 301 and connect with the relevant components inside the control box 301.

[0069] The hand valve 321 is located at the end of the new fluid filling pipe 316 and the old fluid return pipe 318 away from the antifreeze replacement machine, so that the operator can directly open or close the pipeline during equipment operation or maintenance.

[0070] Furthermore, a new coolant inlet 322 is provided at the second horizontal plate 102 corresponding to the new coolant tank 203, and an old coolant inlet 323 is provided at the second horizontal plate 102 corresponding to the new coolant tank 203. Both the new coolant inlet 322 and the old coolant inlet 323 are provided with sealing caps 324.

[0071] Specifically, such as Figure 6As shown, when preparing to replace the coolant inside the car, first check the car's owner's manual to determine the required coolant capacity for the cooling system of this model. Then, open the sealing cap 324 of the new coolant inlet 322 of the equipment and add an appropriate amount of coolant to the new coolant tank 203 through the filling funnel.

[0072] Additionally, it is important to note that disassembling certain components in the car's cooling system creates channels that allow the old coolant, which was originally sealed within the system, to flow out. Directly discharging the old coolant onto the ground would cause environmental pollution and would be detrimental to subsequent treatment. Therefore, before disassembling the components to allow the old coolant to flow out, a drip tray should be placed underneath to collect the coolant. The old coolant will flow into the drip tray, and then the coolant in the drip tray should be poured into the old coolant container 204 through the old coolant inlet 323 for centralized storage, making it easier to recycle or treat in accordance with environmental protection requirements.

[0073] Furthermore, a support mechanism 4 is fixedly provided between the first horizontal plate 101 and the second horizontal plate 102. The support mechanism 4 includes several vertically arranged support columns 401 and support rods 402. Several universal wheels 403 are symmetrically arranged at the bottom of the first horizontal plate 101.

[0074] Specifically, the support column 401 and the support rod 402 work together to enhance the structural stability between the first horizontal plate 101 and the second horizontal plate 102, effectively bearing the weight of the new liquid tank 203 and the old liquid tank 204, and ensuring that the equipment remains stable during operation.

[0075] The 403 casters are designed to allow the equipment to be easily moved to different workstations and adapt to various working environments. The 403 casters are also equipped with a locking device to ensure that the equipment is stable and does not slip during operation, thus improving operational safety and convenience.

[0076] The specific work process for this application is as follows:

[0077] (a) Preparatory work

[0078] Step 1: Return all valves to their initial positions.

[0079] like Figure 5 The first rotary valve 306 and the second rotary valve 307 on the equipment are restored to their initial "OFF" state to ensure that the equipment is in a safe and non-working initial state before operation.

[0080] like Figure 2 Adjust the hand valves 321 connecting the new coolant pipe 316 and the old coolant pipe 318 to the closed position to prevent coolant leakage or unnecessary flow during the preparation stage.

[0081] Step 2: Add coolant to the new liquid tank 203

[0082] First, consult the vehicle's owner's manual to determine the required coolant capacity for the cooling system. Then, open the sealing cap 324 of the new coolant reservoir 203 on the equipment. Add the appropriate amount of coolant to the new coolant reservoir 203 using the filling funnel. After adding the coolant, tighten the sealing cap 324 to ensure the new coolant reservoir 203 is airtight, preparing it for subsequent coolant replacement operations. Figure 6 As shown, the process of adding coolant to the new liquid tank 203 through a funnel is illustrated.

[0083] Step 3: Connect the air source interface 308 to the air source to provide power and other support for subsequent operations such as changing the car coolant using this equipment. The air source is one of the power sources required for the operation of the equipment.

[0084] (ii) Replacement

[0085] I. Replacement Method 1: Replacement without Disassembly

[0086] Step 1: Start the vehicle and turn on the car's heater until the thermostat opens. Once you confirm that the thermostat is open, turn off the engine to allow the cooling system to reach a specific state, preparing it for subsequent operations such as coolant replacement.

[0087] Step 2: As Figure 7 A Y-shaped connector is used, with its two ends connected to the new fluid supply line 316 and the old fluid return line 318, respectively. The end of the Y-shaped connector connects to a tapered connector, such as... Figure 8 As shown, insert the PU tube into the tapered connector. Due to the differences in cooling system design between different models, choose to insert the tapered connector into the radiator opening or the auxiliary radiator opening.

[0088] There are two key points that need to be ensured:

[0089] 1) The PU tubing must be immersed in the vehicle's coolant lines;

[0090] 2) The conical connector and the water tank opening or auxiliary water tank opening must be kept sealed.

[0091] Additionally, it's worth noting that for some vehicle models, clamping the auxiliary water tank hoses with hose clamps can be more effective in preventing coolant leaks and maintaining hose stability.

[0092] Step 3: Operate the second rotary valve 307 and rotate it to the "vacuum" position; then open the air source and the hand valve 321 at the end of the old coolant return pipe 318. At this time, the old coolant tank 204 of the antifreeze changer will start to vacuum, and the vacuum degree will reach 20 InHg. Under the action of vacuuming, the old coolant in the car's internal cooling pipes will flow into the old coolant tank 204 of the antifreeze changer. As the old coolant is continuously extracted, the cooling pipes in the car will gradually become deflated. When the liquid stops flowing, close all the valves to stop the vacuuming operation.

[0093] Step 4: Open the hand valve 321 corresponding to the new coolant pipe 316. At this time, since there is a vacuum in the car's internal cooling system after the previous vacuuming operation, the new coolant will be drawn into the car's internal cooling system under the action of vacuum suction. When the appropriate amount of coolant is added, close all valves to stop the filling operation, and finally disconnect the conical connector.

[0094] Step 5: Start the vehicle and check the coolant level. If the coolant level is low, turn the second rotary valve 307 to the right to the "pressurization" position and turn the first rotary valve 306 to the right to the "pressurization" position as well. Then, open the air supply and the hand valve 321 corresponding to the new coolant pipe 316 to add new coolant to the vehicle's cooling system until the coolant level is appropriate.

[0095] II. Replacement Method Two: Replacement of Broken Pipe

[0096] It should be noted that some vehicle models are not suitable for using tapered connectors or universal locking connectors due to their own structure. In this case, it is necessary to disconnect the water supply hose inside the vehicle to replace the coolant.

[0097] The specific steps are as follows:

[0098] Step 1: Disconnect the water supply pipe of the vehicle radiator. Connect a flexible hose with the same diameter as the water supply pipe to one end of the radiator. Find two corresponding trapezoidal connectors and connect them to the engine end and the radiator end of the water supply pipe, respectively. Secure these connections with clamps. Connect the new fluid supply pipe 316 and the old fluid return pipe 318 of the equipment to the engine end and the radiator end of the water supply pipe, respectively.

[0099] Step 2: Rotate the second rotary valve 307 to the right to the "pressurization" position, and also rotate the first rotary valve 306 to the right to the "pressurization" position. Then, open the air source and the hand valve 321 for adding new fluid line 316 and returning old fluid line 318 to start changing the coolant. During the replacement process, rotate the second rotary valve 307 to the left to the "vacuum" position to purge the air from the vehicle, and then return it to the "pressurization" position. This operation can be repeated.

[0100] Step 3: As the replacement progresses, the new coolant in the new reservoir 203 will gradually decrease, while the old coolant in the old reservoir 204 will gradually increase. For some vehicle models, if no old coolant flows out during the replacement process, the positions of the new coolant add line 316 and the old coolant return line 318 need to be swapped. When the old coolant in the vehicle's cooling system gradually becomes clear, close all valves and stop the replacement operation.

[0101] Note: When the replacement is almost finished, turn off the air supply and use the residual pressure in the new coolant tank 203 to push the new coolant into the vehicle to depressurize the system. This is to prevent coolant from spraying out when the trapezoidal connector is disconnected after the replacement is completed, as there is still pressure in the pipeline.

[0102] Step 4: Restore the vehicle's internal piping. Return the internal piping that was disconnected earlier for coolant replacement to its original state.

[0103] Step 5: Start the vehicle and check the coolant level. If the level has dropped, add new coolant to the auxiliary water tank to the appropriate level. When adding new coolant, turn the second rotary valve 307 to the right to the "pressurization" position and turn the first rotary valve 306 to the right to the "pressurization" position (new coolant tank 203). Open the air supply and the hand valve 321 of the new coolant pipe 316 to add coolant.

[0104] The specific steps for draining the old liquid are as follows:

[0105] 1) Draining the old coolant: Rotate the second rotary valve 307 to the right to the "pressurize" position, and rotate the first rotary valve 306 to the left to the "pressurize (old coolant tank 204)" position. Both rotation of the first rotary valve 306 and the second rotary valve 307 pressurize the old coolant tank 204. Then open the hand valve 321 of the air supply and the old coolant return pipe 318. Figure 10 At this time, the equipment will discharge the old coolant in the old liquid tank 204 of this equipment to the external tank under pressure.

[0106] 2) Return the valves to their initial positions. After the old coolant has been drained, return all valves to their initial positions to prepare for the addition of new coolant.

[0107] The specific steps for draining the new solution are as follows:

[0108] 1) Draining new coolant: Turn the second rotary valve 307 to the right to the "pressurization" position, turn the first rotary valve 306 to the right to the "pressurization (new coolant tank 203)" position, and then open the hand valve 321 of the new coolant filling pipe 316. At this time, the equipment will drain the new coolant in the new coolant tank 203 to the external tank through the new coolant filling pipe 316 under pressure.

[0109] 2) Restore the valves to their initial positions. After the new coolant has been drained, restore all valves to their initial positions to prepare for subsequent operations.

[0110] The above describes the basic principles, main features, and advantages of this utility model. The standard parts used in this utility model can all be purchased from the market, and the irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art, which will not be described in detail here.

[0111] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0112] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0113] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An antifreeze replacement machine, comprising a support mechanism (1), characterized in that: The supporting mechanism (1) includes a first horizontal plate (101) and a second horizontal plate (102) located above the first horizontal plate (101). A liquid storage mechanism (2) is provided between the first horizontal plate (101) and the second horizontal plate (102). A control mechanism (3) is provided on the upper part of the second horizontal plate (102).

2. The antifreeze replacement machine according to claim 1, characterized in that: The liquid storage mechanism (2) includes a first tubular tank (201) and a second tubular tank (202) arranged in parallel.

3. The antifreeze replacement machine according to claim 2, characterized in that: The first tubing (201) is a new liquid tank (203), and the second tubing (202) is an old liquid tank (204).

4. The antifreeze replacement machine according to claim 3, characterized in that: The control mechanism (3) includes a control box (301), a control panel (302) is provided on the front of the control box (301), a vacuum generator (303) is fixedly provided on the back of the control panel (302), a new liquid gauge (304) and an old liquid gauge (305) are embedded on the control panel (302), a first rotary valve (306) for adjusting the pressure value inside the new liquid tank (203) is provided on the side of the new liquid gauge (304), and a second rotary valve (307) for adjusting the pressure value inside the old liquid tank (204) is provided on the side of the old liquid gauge (305).

5. The antifreeze replacement machine according to claim 4, characterized in that: A gas source interface (308) is provided on one side panel of the control box (301). The gas source interface (308) is connected to an external air pipe (309). A new liquid tank air inlet (310) is provided at the second horizontal plate (102) corresponding to the new liquid tank (203) inside the control box (301). An old liquid tank air inlet (311) is provided at the second horizontal plate (102) corresponding to the old liquid tank (204) inside the control box (301).

6. The antifreeze replacement machine according to claim 5, characterized in that: The old liquid tank (204) is also provided with a vacuum interface (312) located in the control box (301) and connected to the pipeline of the vacuum generator (303) at the second horizontal plate (102).

7. The antifreeze replacement machine according to claim 6, characterized in that: The new liquid tank (203) and the old liquid tank (204) are respectively provided with a first oil delivery pipe and a second oil delivery pipe. The new liquid tank (203) is also provided with a new liquid filling port (315) located in the control box (301) and connected to the first oil delivery pipe at the second horizontal plate (102) corresponding to the new liquid tank (203). The end of the new liquid filling port (315) away from the first oil delivery pipe is connected to a new liquid filling pipe (316). The old liquid tank (204) is also provided with an old liquid filling port (317) located in the control box (301) and connected to the second oil pipeline at the second horizontal plate (102). The end of the old liquid filling port (317) away from the second oil pipeline is connected to the old liquid return pipe (318).

8. The antifreeze replacement machine according to claim 7, characterized in that: The control box (301) is also provided with a first through hole (319) and a second through hole (320) for the new liquid pipe (316) and the old liquid pipe (318) to pass through. The new liquid pipe (316) and the old liquid pipe (318) are both provided with a hand valve (321) at the end away from the antifreeze replacement machine.

9. The antifreeze replacement machine according to claim 8, characterized in that: A new coolant inlet (322) is provided at the second horizontal plate (102) corresponding to the new coolant tank (203), and an old coolant inlet (323) is provided at the second horizontal plate (102) corresponding to the new coolant tank (203). Both the new coolant inlet (322) and the old coolant inlet (323) are provided with sealing caps (324).

10. The antifreeze replacement machine according to claim 9, characterized in that: A support mechanism (4) is fixedly provided between the first horizontal plate (101) and the second horizontal plate (102). The support mechanism (4) includes several vertically arranged support columns (401) and support rods (402). Several universal wheels (403) are symmetrically arranged at the bottom of the first horizontal plate (101).

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