A filling and discharging plug for an automobile radiator

Abstract

The utility model relates to the technical field of the air charging and discharging plug for automobile radiator, and disclose an air charging and discharging plug for automobile radiator, including the heat dissipation box, the one -way valve of heat dissipation box downside intercommunication, pressure valve, the vacuum valve of heat dissipation box loop intercommunication and the pressure relief valve of heat dissipation box upside intercommunication, the heat dissipation box upside is provided with pressure -exchanging energy -unloading mechanism and pressure -measuring protection mechanism, pressure -measuring protection mechanism sets up at pressure -exchanging energy -unloading mechanism one side, pressure -exchanging energy -unloading mechanism includes the sleeve, the sleeve sealed rotary connection is in heat dissipation box upside, the sleeve inside fixedly connected with support, the sleeve upside sealed rotary connection has the sleeve, the conical groove is seted up in the sleeve upside inside, the support inside screw thread connection has screw rod, pressure -exchanging energy -unloading mechanism is used to discharge the pressure in heat dissipation box inside conveniently overhauls, has improved the device security, pressure -measuring protection mechanism is used for detecting air pressure state, has avoided the risk of being wounded of rashly opening main lid.

Description

Technical Field

[0001] This utility model relates to the technical field of air inlet / outlet plugs for automotive radiators, specifically an air inlet / outlet plug for automotive radiators. Background Technology

[0002] The radiator air vent plug is a crucial component of the cooling system, typically located at the highest point of the radiator or engine coolant passages. Its primary function is to expel air from the system, preventing air locks that can lead to engine overheating. To operate, open the plug when the engine is cold, start the engine and keep it idling until coolant flows out continuously without air bubbles, then tighten the plug to ensure the system is full. Additionally, it serves as the inlet for adding antifreeze. When changing the coolant, this plug must be opened to thoroughly bleed the system, ensuring smooth circulation and effectively maintaining the engine's normal operating temperature.

[0003] Car engines operate at high temperatures, requiring the cooling system to be pressurized to prevent boiling. The radiator pressure cap is a crucial valve for maintaining this pressure. However, if a user accidentally opens this cap while the engine is warm for inspection or topping up, the high pressure inside the system is released instantly. This causes the overheated coolant, which was previously suppressed by the high pressure, to immediately boil violently and vaporize, creating an unavoidable high-temperature spray that can cause severe burns. Even with existing devices featuring simple protective structures, their safety is still difficult to guarantee. Furthermore, during maintenance, the hot gas pressure needs to be released, but current devices typically rely on natural cooling, hindering the maintenance process. Utility Model Content

[0004] The purpose of this invention is to provide an air plug for an automotive radiator to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a charging and discharging plug for an automotive radiator, comprising a radiator box, a one-way valve connected to the lower side of the radiator box, a pressure valve, a vacuum valve connected to the radiator box circuit, and a pressure relief valve connected to the upper side of the radiator box. The upper side of the radiator box is provided with a pressure-replacing and energy-relieving mechanism and a pressure-measuring and protection mechanism, and the pressure-measuring and protection mechanism is located on one side of the pressure-replacing and energy-relieving mechanism. The pressure-replacing and energy-relieving mechanism includes a rotating sleeve, which is rotatably and sealed to the upper side of the heat sink. A bracket is fixedly connected inside the rotating sleeve, and a sealing sleeve is rotatably and sealed to the upper side of the rotating sleeve. A tapered groove is formed inside the upper side of the sealing sleeve. A screw is threadedly connected inside the bracket, and a vent plate is slidably connected to the outer wall of the screw. The vent plate is fixedly connected to the sealing sleeve, and a spring is fixedly connected to the upper surface of the vent plate. A baffle is fixedly connected to the upper end of the spring and slidably connected to the outside of the screw. A sealing block is fixedly connected to the upper end of the screw, and the sealing block abuts against the tapered groove. A cap is threadedly connected to the upper side of the sealing sleeve, and multiple screw rods are fixedly connected to the outer wall of the rotating sleeve.

[0006] Preferably, the breathable plate is configured as a rigid structure.

[0007] Preferably, the sealing block has a trapezoidal cross-section.

[0008] Preferably, the outer side of the baffle has multiple cuts.

[0009] Preferably, the pressure testing and protection mechanism includes a branch pipe, which is connected to one side of the heat dissipation box. A support cylinder is connected to the upper side of the branch pipe, and a support rim is fixedly connected to the upper side of the support cylinder. A sliding rod is slidably connected inside the support cylinder, and a convex plate is fixedly connected to the upper end of the sliding rod. An elastic element is fixedly connected to the lower surface of the convex plate. A screw cap is threaded to the outer wall of the support cylinder, and a base plate is fixedly connected to the lower end of the sliding rod.

[0010] Preferably, an annular support structure is fixedly connected to the lower side of the support cylinder.

[0011] Preferably, the convex plate is spaced from the upper inner wall of the support cylinder.

[0012] Compared with the prior art, this utility model provides an air plug for charging and discharging automobile radiators, which has the following advantages: 1. The pressure-relieving mechanism is used to release the pressure inside the heat sink for easy maintenance. This mechanism uses a vent plate and a baffle as a pressure buffer structure to ensure that the device can discharge air pressure at a controllable and slow speed. At the same time, the spring allows the discharge air flow to be adaptively increased by releasing the spring pressure after the air pressure decreases. In conjunction with the bracket and the conical groove, the discharge air pressure is actively adjusted, so that the device can reduce the damage caused by air pressure carrying hot steam in a stable and controllable manner, thus improving the safety of the device.

[0013] 2. The pressure testing and protection mechanism is used to detect the air pressure status. This mechanism can prevent users from being injured due to residual heat inside the heat sink. The mechanism works with a raised plate and an elastic element. When the cover is opened, if the air pressure inside the heat sink is still dangerous, the air pressure will rush from inside the heat sink to the support cylinder and push up the raised plate, preventing the hot air from escaping. This allows users to clearly see the air pressure status inside the heat sink and avoids the risk of injury from opening the main cover rashly. Attached Figure Description

[0014] 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. Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram from another perspective of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a schematic diagram of the structure of the bracket and sealing sleeve in this utility model; Figure 5 This is a schematic diagram of the structure of the branch pipe and the support cylinder in this utility model.

[0015] In the diagram: 1. Heat sink; 2. Check valve; 3. Pressure valve; 4. Vacuum valve; 5. Pressure relief valve; 6. Pressure changing and energy dissipation mechanism; 601. Sleeve; 602. Bracket; 603. Sealing sleeve; 604. Conical groove; 605. Screw; 606. Vent plate; 607. Spring; 608. Baffle; 609. Sealing block; 610. Cover; 611. Tightening rod; 7. Pressure measuring and protection mechanism; 701. Branch pipe; 702. Support cylinder; 703. Eaves; 704. Sliding rod; 705. T-plate; 706. Elastic element; 707. Tightening cover; 708. Base plate. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] Example 1: Please see Figure 1-5 This utility model provides a technical solution: a charging and discharging plug for an automotive radiator, including a radiator box 1, a one-way valve 2 connected to the lower side of the radiator box 1, a pressure valve 3, a vacuum valve 4 connected to the circuit of the radiator box 1, and a pressure relief valve 5 connected to the upper side of the radiator box 1. A pressure-replacing and energy-relieving mechanism 6 and a pressure-measuring and protection mechanism 7 are provided on the upper side of the radiator box 1, and the pressure-measuring and protection mechanism 7 is provided on one side of the pressure-replacing and energy-relieving mechanism 6. This mechanism is used to stably release the air pressure inside the heat sink 1. It solves the problem that traditional devices struggle to handle the high heat of the heat sink 1, hindering rapid maintenance. The pressure-replacing and energy-relieving mechanism 6 includes a rotating sleeve 601, which is rotatably and sealed to the upper side of the heat sink 1. A bracket 602 is fixedly connected inside the rotating sleeve 601. A sealing sleeve 603 is rotatably and sealed to the upper side of the rotating sleeve 601. A tapered groove 604 is formed inside the upper side of the sealing sleeve 603. A screw 605 is threadedly connected inside the bracket 602. A vent plate 606 is slidably connected to the outer wall of rod 605. The vent plate 606 is fixedly connected to the sealing sleeve 603. A spring 607 is fixedly connected to the upper surface of the vent plate 606. A baffle 608 is fixedly connected to the upper end of the spring 607. The baffle 608 is slidably connected to the outside of the screw rod 605. A sealing block 609 is fixedly connected to the upper end of the screw rod 605. The sealing block 609 abuts against the conical groove 604. A cap 610 is threadedly connected to the upper side of the sealing sleeve 603. Multiple screw rods 611 are fixedly connected to the outer wall of the screw sleeve 601.

[0019] Furthermore, the breathable panel 606 is configured as a rigid structure.

[0020] Furthermore, the sealing block 609 has a trapezoidal cross-section.

[0021] Furthermore, multiple cuts are provided on the outer side of the baffle 608.

[0022] Example 2: Please see Figure 1-5 Furthermore, in conjunction with Embodiment 1, it is further obtained that the pressure testing and protection mechanism 7 includes a branch pipe 701, which is connected to one side of the heat dissipation box 1. A support cylinder 702 is connected to the upper side of the branch pipe 701. An eaves 703 is fixedly connected to the upper side of the support cylinder 702. A slide rod 704 is slidably connected inside the support cylinder 702. A raised plate 705 is fixedly connected to the upper end of the slide rod 704. An elastic element 706 is fixedly connected to the lower surface of the raised plate 705. A screw cap 707 is threadedly connected to the outer wall of the support cylinder 702. A base plate 708 is fixedly connected to the lower end of the slide rod 704.

[0023] Furthermore, an annular bracket 602 structure is fixedly connected to the lower interior of the support cylinder 702.

[0024] Furthermore, there is a gap between the convex plate 705 and the upper inner wall of the support cylinder 702.

[0025] In actual operation, when this device is in use, the radiator absorbs engine heat by absorbing hot water. The heat is accumulated through boiling and vaporization. The air pressure is balanced by transferring to the auxiliary box and releasing overpressure. When the user needs to perform emergency repairs due to a malfunction, the user can unscrew the cap 707. If the cap 707 is lifted up instantly, the air pressure inside the radiator box 1 is too high. The user can then close the opening and unscrew the cap 610. Subsequently, the user causes the sleeve 601 and the sealing sleeve 603 to rotate relative to each other, which causes the screw 605 to drive the sealing block 609 down, leaving space for the conical groove 604. At the same time, the air pressure lifts the baffle 608, causing the spring 607 to store energy. The gas is discharged through the gap of the baffle 608, and the discharge volume gradually increases as the air pressure decreases. The user can adjust the height of the sealing block 609 according to the air pressure discharge volume to increase the discharge volume, making the device maintenance safe and stable.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A pressure relief valve for an automotive radiator, comprising a radiator housing (1), a one-way valve (2) connected to the lower side of the radiator housing (1), a pressure valve (3), a vacuum valve (4) connected to the circuit of the radiator housing (1), and a pressure relief valve (5) connected to the upper side of the radiator housing (1), characterized in that: The heat sink (1) is provided with a pressure-replacing and energy-relieving mechanism (6) and a pressure-measuring and protection mechanism (7) on its upper side. The pressure-measuring and protection mechanism (7) is located on one side of the pressure-replacing and energy-relieving mechanism (6). The pressure-replacing and energy-relieving mechanism (6) includes a rotating sleeve (601), which is rotatably and sealed to the upper side of the heat sink (1). A bracket (602) is fixedly connected inside the rotating sleeve (601). A sealing sleeve (603) is rotatably and sealed to the upper side of the rotating sleeve (601). A tapered groove (604) is provided inside the upper side of the sealing sleeve (603). A screw (605) is threaded inside the bracket (602). A vent plate (606) is slidably connected to the outer wall of the screw (605). The vent plate (606) is connected to... A sealing sleeve (603) is fixedly connected, a spring (607) is fixedly connected to the upper surface of the vent plate (606), a baffle (608) is fixedly connected to the upper end of the spring (607), the baffle (608) is slidably connected to the outside of the screw (605), a sealing block (609) is fixedly connected to the upper end of the screw (605), the sealing block (609) abuts against the conical groove (604), a cap (610) is threadedly connected to the upper side of the sealing sleeve (603), and multiple screw rods (611) are fixedly connected to the outer wall of the rotating sleeve (601).

2. The air plug for an automotive radiator according to claim 1, characterized in that: The breathable plate (606) is configured as a rigid structure.

3. The air plug for an automotive radiator according to claim 1, characterized in that: The sealing block (609) has a trapezoidal cross-section.

4. The air plug for an automotive radiator according to claim 1, characterized in that: The baffle (608) has multiple cuts on its outer side.

5. The air plug for an automotive radiator according to claim 1, characterized in that: The pressure protection mechanism (7) includes a branch pipe (701), which is connected to one side of the heat dissipation box (1). A support cylinder (702) is connected to the upper side of the branch pipe (701). An eaves (703) is fixedly connected to the upper side of the support cylinder (702). A slide rod (704) is slidably connected inside the support cylinder (702). A convex plate (705) is fixedly connected to the upper end of the slide rod (704). An elastic element (706) is fixedly connected to the lower surface of the convex plate (705). A screw cap (707) is threadedly connected to the outer wall of the support cylinder (702). A base plate (708) is fixedly connected to the lower end of the slide rod (704).

6. The air plug for an automotive radiator according to claim 5, characterized in that: The lower side of the support cylinder (702) is fixedly connected to an annular bracket (602) structure.

7. The air plug for an automotive radiator according to claim 5, characterized in that: The convex plate (705) and the upper inner wall of the support cylinder (702) are spaced apart.

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