CN215851189U - Automatic filling device for brake fluid replacement - Google Patents
Automatic filling device for brake fluid replacement Download PDFInfo
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- CN215851189U CN215851189U CN202121219677.6U CN202121219677U CN215851189U CN 215851189 U CN215851189 U CN 215851189U CN 202121219677 U CN202121219677 U CN 202121219677U CN 215851189 U CN215851189 U CN 215851189U
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- brake fluid
- level sensor
- liquid level
- liquid storage
- oil pump
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Abstract
The utility model relates to an automatic filling device for brake fluid replacement. It comprises an automatic filling cover, an oil pump, a liquid storage pot, a liquid level sensor, a vacuum generator, a vacuum negative pressure container and the like; the automatic filling cover is communicated with the liquid storage pot through an oil pump, the automatic filling cover can be fixed on a vehicle brake fluid replenishing pot, a floating ball type liquid level sensor is arranged in the liquid storage pot, the liquid level sensor is arranged on the automatic filling cover, the vacuum negative pressure container is connected with four brake cylinder air release screws of a vehicle through hoses, and the vacuum generator is assembled with the vacuum negative pressure container; the ball-floating liquid level sensor arranged in the liquid storage pot is connected with a control loop of the vacuum generator to control the on-off of the vacuum generator, and the liquid level sensor on the automatic filling cover is connected with a control loop of the oil pump to control the on-off of the oil pump. The utility model can thoroughly solve the problems that the filling cover is not matched with the upper cover of the original vehicle brake fluid replenishing kettle in the prior art and the risk of damaging elements of a vehicle braking system due to improper operation.
Description
Technical Field
The utility model relates to an automatic filling device for brake fluid replacement.
Background
The brake fluid replacement device is mostly a positive pressure mode device, when the brake fluid is replaced, the upper cover of the vehicle brake fluid replenishing kettle is taken down, and a matched special filling cover is installed and connected with the device; and then the new brake fluid is firstly filled into the equipment, then the oil pump is used for filling the new brake fluid into the vehicle brake fluid replenishing pot, a certain positive pressure is generated, and the generated pressure is used for discharging the old brake fluid in the vehicle brake system through the air discharge screws of the four wheel brake cylinders. Because different brake fluid infusion pot lids of motorcycle type are various, often because special filling lid and former car brake fluid infusion pot upper cover can't match the change that can't carry out the brake fluid when changing the brake fluid, sometimes still can be because of the special lid of matching is sealed untight and can't change, sometimes because the operation is improper, the malleation too can cause the damage vehicle braking system component, so need develop a brake fluid and change automatic filling device, can thoroughly solve filling lid and former car brake fluid infusion pot upper cover and mismatch the difficult problem to and improper risk of operation damage vehicle braking system component.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an automatic brake fluid replacement filling device which can thoroughly solve the problems that a filling cover is not matched with an upper cover of an original vehicle brake fluid replenishing kettle in the prior art and the risk of damaging elements of a vehicle braking system due to improper operation is high.
The technical scheme of the utility model is as follows: the utility model relates to an automatic filling device for brake fluid replacement, which comprises an automatic filling cover, an oil pump, a liquid storage pot, a liquid level sensor, a vacuum generator, a vacuum negative pressure container and the like; the automatic filling cover is communicated with the liquid storage pot through an oil pump, the automatic filling cover can be fixed on a vehicle brake fluid replenishing pot, a floating ball type liquid level sensor is arranged in the liquid storage pot, the liquid level sensor is arranged on the automatic filling cover, the vacuum negative pressure container is connected with four brake wheel cylinder air discharge screws of a vehicle through hoses, and the vacuum generator is matched with the vacuum negative pressure container to enable the vacuum negative pressure container to generate negative pressure to suck old brake fluid in a vehicle brake system into the vacuum negative pressure container; the ball-floating liquid level sensor arranged in the liquid storage pot is connected with a control loop of the vacuum generator to control the on-off of the vacuum generator so that the vacuum negative pressure container generates negative pressure, and the liquid level sensor on the automatic filling cover is connected with a control loop of the oil pump to control the on-off of the oil pump.
Further, the pot body of the liquid storage pot is cylindrical and made of stainless steel, a floating ball type liquid level sensor is arranged in the liquid storage pot, an opening is formed in the center of the bottom of the liquid storage pot, the diameter of the opening is larger than that of a floating ball and is not more than 1cm, a circular short cylinder with the same inner diameter and opening diameter is welded below the opening, a testing guide rod of the floating ball type liquid level sensor is arranged in the center of the top of the liquid storage pot, the floating ball of the floating ball type liquid level sensor can be guaranteed to just fall into the short cylinder, an oil outlet connected with an oil pump is formed in the bottom of the circular short cylinder, and an oil filling hole is formed in the top of the liquid storage pot A.
Furthermore, the height of the short cylinder arranged on the bottom of the liquid storage kettle is 4-5 cm.
Furthermore, the speed regulator for regulating and controlling the oil supply quantity of the oil pump is connected to the control loop of the oil pump.
The utility model has the beneficial effects that: the automatic filling device for brake fluid replacement provided by the utility model utilizes the vacuum negative pressure container, realizes old fluid recovery by adopting a negative pressure mode, only needs simple connection and fixation of the filling cover and the upper cover of the original vehicle brake fluid replenishing kettle, and can thoroughly solve the problem of mismatching of the filling cover and the upper cover of the original vehicle brake fluid replenishing kettle in the prior art by matching with an oil pump, a fluid storage kettle and the like, and avoid the risk of damaging elements of a vehicle braking system due to improper operation. Its advantages are summarized as follows: 1. the safety is high, and the risk that components of a vehicle brake system are damaged due to too large positive pressure when the operation is not proper is avoided. 2. The filling cover and the upper cover of the original vehicle brake fluid infusion pot cannot be matched, and the filling cover does not need to be sealed with the vehicle brake fluid infusion pot due to the adoption of a negative pressure type replacement mode, and can be suitable for all vehicle types only by simple fixation. 3. The automatic filling cover is additionally provided with the special liquid level sensor, the whole oil changing process can be ensured, the liquid level of the vehicle brake fluid replenishing kettle is at the highest position, and the automatic simultaneous stop of the new liquid filling and the old liquid recovery after the replacement is finished can be ensured, so that the air does not enter the vehicle braking system.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of an automatic brake fluid replacement filling device according to the present invention.
Fig. 2 is a schematic circuit diagram of the control circuit board in an embodiment of the automatic brake fluid replacement filling device of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiment is only one embodiment of the present invention, and not all 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.
Fig. 1 shows an embodiment of an automatic filling device for brake fluid replacement according to the present invention, which includes an automatic filling cover H, an oil pump C, a liquid storage pot a, a liquid level sensor, a vacuum generator O, a vacuum negative pressure container P, a control circuit board F, a speed regulator D, a filling indicator lamp E, a low liquid level alarm lamp G, and the like; the automatic filling cover H is communicated with a liquid storage pot A through an oil pump and can be fixed on a brake fluid replenishing pot R of a vehicle, a floating ball type liquid level sensor B is arranged in the liquid storage pot A, a liquid level sensor Q is arranged on the automatic filling cover H, a vacuum negative pressure container P is connected with air discharge screws of four brake sub-pumps Z of the vehicle through hoses, and a vacuum generator O is assembled with the vacuum negative pressure container P to enable the vacuum negative pressure container P to generate negative pressure to suck old brake fluid in a vehicle brake system into the vacuum negative pressure container P; a ball floating type liquid level sensor B arranged in the liquid storage pot A is connected to a control loop of a vacuum generator O to control the on-off of the vacuum generator O, and a liquid level sensor Q on the automatic filling cover H is connected to a control loop of an oil pump C to control the on-off of the oil pump. The kettle body of the liquid storage kettle A is cylindrical and made of stainless steel, a floating ball type liquid level sensor B is arranged in the liquid storage kettle A, an opening is formed in the center of the bottom of the liquid storage kettle A, the diameter of the opening is larger than that of a floating ball and does not exceed 1cm, a section of circular short cylinder (shown in figure 1) with the same inner diameter and opening diameter is welded below the opening, an oil outlet connected with an oil pump is formed in the bottom of the circular short cylinder, and an oil filling hole is formed in the top of the liquid storage kettle A. The testing guide rod of the floating ball type liquid level sensor is arranged in the center of the top of the liquid storage pot A, and the floating ball of the floating ball type liquid level sensor can be guaranteed to just fall into the short cylinder. The height of the short cylinder arranged on the bottom of the liquid storage pot A is 4-5 cm.
The control circuit of the device of the utility model is arranged on a control circuit board F. The circuit design in the embodiment is shown in fig. 2, and the circuit comprises a loop consisting of a positive end and a negative end of a power supply, a change switch, a floating ball type liquid level sensor B and a coil of a relay J1; the system comprises a loop consisting of a positive end and a negative end of a power supply, a normally open contact of a relay J1 and a vacuum generator O; the low liquid level alarm lamp is characterized by comprising a loop consisting of a positive end and a negative end of a power supply, a normally closed contact of a relay J1 and a low liquid level alarm lamp E; the above loop realizes that the relay J1 controls the on-off of the vacuum generator O and the on-off of the low liquid level alarm lamp according to the signal of the floating ball type liquid level sensor B. The circuit board also comprises a loop consisting of a positive end and a negative end of a power supply, a normally open contact of a relay J2, a speed regulator D and an oil pump, and a loop which is connected in parallel between the normally closed and normally open contacts of the relay J1 and the negative end of the power supply and consists of a liquid level sensor Q on an automatic filling cover H and a relay J2 coil; the above circuit design realizes that the relay J2 controls the on-off of the oil pump C according to the signal of the liquid level sensor Q arranged on the automatic filling cover H. A replacement indicator light for prompting the replacement can be connected in parallel at the two ends of the speed regulator D and the oil pump C
The working process of the utility model is as follows: when the device of the utility model is used for replacing brake fluid for a vehicle, 1 liter of new brake fluid is firstly filled into a special stainless steel liquid storage pot A, a floating ball type liquid level sensor B rises and transmits a signal to a control circuit board F of the device, a low liquid level alarm lamp E is turned off (if the low liquid level alarm lamp is turned on, a speed regulator switch is turned on at the moment to prevent an oil pump from filling air into the vehicle brake fluid replenishing pot, and the oil pump does not run), a speed regulator switch D is turned on, an oil pump C starts to run, the new brake fluid is filled into the vehicle brake fluid replenishing pot R through an automatic filling cover H, a vacuum generator O generates negative pressure in a vacuum negative pressure container P, old brake fluid in a vehicle braking system is sucked into the vacuum negative pressure container P through four brake sub-pump Z air-release bolts, when the liquid level of the vehicle brake fluid replenishing pot R is overhigh, a liquid level sensor Q on the automatic filling cover H transmits a signal to the control circuit board F, when the liquid level in the vehicle brake fluid replenishing kettle R is reduced, the liquid level sensor Q on the automatic filling cover H sends a signal to the control circuit board F, the filling indicator lamp G is turned off when the oil pump C continues to operate, new brake fluid begins to be filled into the vehicle brake fluid replenishing kettle R, the filling and stopping are sequentially repeated, when the brake fluid in the special stainless steel new fluid storing kettle A is about to be drained, the ball float B falls, the liquid level sensor on the ball float B sends a signal to the control circuit board F, the vacuum negative pressure container P stops absorbing oil, the oil pump C automatically stops operating, the low liquid level alarm lamp E is turned on, and the brake fluid stops filling.
Claims (4)
1. The utility model provides an automatic filling device is changed to brake fluid which characterized in that: the filling device comprises an automatic filling cover, an oil pump, a liquid storage pot, a liquid level sensor, a vacuum generator and a vacuum negative pressure container; the automatic filling cover is communicated with the liquid storage pot through an oil pump, the automatic filling cover is fixed on a vehicle brake fluid replenishing pot, a floating ball type liquid level sensor is arranged in the liquid storage pot, the liquid level sensor is arranged on the automatic filling cover, the vacuum negative pressure container is connected with four brake cylinder air release screws of a vehicle through hoses, the vacuum generator is assembled with the vacuum negative pressure container, and the vacuum negative pressure container generates negative pressure to suck old brake fluid in a vehicle brake system into the vacuum negative pressure container; the ball-floating liquid level sensor arranged in the liquid storage pot is connected with a control loop of the vacuum generator to control the on-off of the vacuum generator, and the liquid level sensor on the automatic filling cover is connected with a control loop of the oil pump to control the on-off of the oil pump.
2. The automatic brake fluid replacement filling device according to claim 1, wherein: the kettle body of the liquid storage kettle is cylindrical and made of stainless steel, a floating ball type liquid level sensor is arranged in the liquid storage kettle, an opening is formed in the center of the bottom of the liquid storage kettle, the diameter of the opening is larger than that of a floating ball and does not exceed 1cm, a section of round short cylinder with the same inner diameter and opening diameter is welded below the opening, a test guide rod of the floating ball type liquid level sensor is arranged in the center of the top of the liquid storage kettle, the floating ball of the test guide rod can be guaranteed to just fall into the short cylinder, an oil outlet connected with an oil pump is formed in the bottom of the round short cylinder, and an oil filling hole is formed in the top of the liquid storage kettle A.
3. The automatic brake fluid replacement filling device according to claim 2, wherein: the height of the short cylinder arranged on the bottom of the liquid storage kettle is 4-5 cm.
4. The automatic brake fluid replacement filling device according to claim 1, wherein: and a speed regulator for regulating and controlling the oil supply quantity of the oil pump is connected to a control loop of the oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121219677.6U CN215851189U (en) | 2021-06-02 | 2021-06-02 | Automatic filling device for brake fluid replacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121219677.6U CN215851189U (en) | 2021-06-02 | 2021-06-02 | Automatic filling device for brake fluid replacement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215851189U true CN215851189U (en) | 2022-02-18 |
Family
ID=80313810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121219677.6U Active CN215851189U (en) | 2021-06-02 | 2021-06-02 | Automatic filling device for brake fluid replacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215851189U (en) |
-
2021
- 2021-06-02 CN CN202121219677.6U patent/CN215851189U/en active Active
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