Interlocking protection radiator cover for automobile
By installing a temperature recognition display device and a self-locking buckle fixing device on the car radiator cover, the problem of high-temperature steam burns caused by drivers accidentally opening the radiator cover is solved, and the radiator cover is automatically locked at high temperatures to ensure driver safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-04
- Publication Date
- 2026-03-10
AI Technical Summary
In emergency situations, drivers may unknowingly open existing car radiator covers, posing a risk of burns from high-temperature steam, especially given the frequent occurrence of such incidents.
An interlocking protection system for automotive radiator covers has been designed, equipped with a temperature recognition display device and a self-locking buckle fixing device. The system monitors the temperature in real time through a small probe needle-type thermistor and a color temperature display, and automatically locks the radiator cover when the temperature is high to prevent it from being opened.
This effectively prevents drivers from being burned when they unintentionally or unknowingly open the radiator cover in high temperatures, ensuring safety.
Smart Images

Figure CN223984515U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of automobile, concretely relates to a interlocking protection radiator cover for automobile. BACKGROUND
[0002] The radiator cover is installed on the radiator (water tank) of the automobile, mainly plays a role of sealing the water cooling system and adjusting the working pressure of the system, and is an important component of the cooling system of the automobile.
[0003] The automobile engine adopts a closed water cooling system, and the radiator cover with a vapor valve and an air valve is widely used in the water cooling system. When the engine works, the temperature of the cooling liquid gradually rises, and the pressure in the cooling system increases due to the expansion of the volume of the cooling liquid. When the pressure exceeds the predetermined value, the pressure valve opens, and part of the cooling liquid flows into the compensation water tank through the overflow pipe to prevent the cooling liquid from expanding and cracking the radiator. After the engine stops, the temperature of the cooling liquid decreases, and the pressure in the cooling system also decreases. When the pressure is below the atmospheric pressure and a vacuum appears, the vacuum valve opens, and part of the cooling liquid in the compensation water tank flows back to the radiator, so that the pressure in the radiator can be kept stable, and the radiator can be prevented from being damaged by the atmospheric pressure.
[0004] At present, the radiator cover used by the vehicle is mainly fixed on the radiator port by rotating and tightening the buckle, and the color and text reminders are informed by pasting yellow and red warning signs on the radiator cover. However, under the condition of emergency, the driver lacks basic safety awareness, and the radiator cover is directly opened by mistake or unconsciousness, which causes the risk of being scalded by the high-temperature steam of the cooling liquid in the radiator, especially the event of the driver being scalded by the high-temperature steam. CONTENT OF THE UTILITY MODEL
[0005] The utility model aims at providing a interlocking protection radiator cover for automobile to solve the above problems.
[0006] In order to achieve the above purpose, the utility model adopts the technical scheme that:
[0007] The utility model provides a kind of interlocking protection radiator cap for car, including water tank body, cover and the cap of being arranged in the top surface of cover, hollow type fixed rod is arranged in the cover, the top end of hollow type fixed rod is fixedly connected with the bottom surface of cap, the bottom end of hollow type fixed rod is open, spring is set on the outer periphery of hollow type fixed rod, the bottom surface and top surface of cap are respectively arranged small probe needle type thermistor and color temperature display, small probe needle type thermistor is arranged in hollow type fixed rod, wire communication is arranged between small probe needle type thermistor and color temperature display, steam valve is arranged below hollow type fixed rod, air valve is arranged in the center of steam valve, interlocking fixed protection device is further provided on cap, interlocking fixed protection device includes jib, pull rod and concave buckle, the bottom end of jib is vertically connected with the top surface of steam valve, the top end of jib is arranged in cap, pull rod is L-shaped, one end of pull rod is rotatably connected with the end of jib, the other end of pull rod is fixedly connected with the bottom surface of concave buckle, the concave surface of concave buckle is in contact with fixed buckle.
[0008] In order to further realize the utility model, the bottom surface of the cap is symmetrically provided with a positioning pin barrel, the jib is arranged in the positioning pin barrel, and a sealing gasket is arranged between the positioning pin barrel and the bottom surface of the cap.
[0009] In order to further realize the utility model, the top surface of the cap is symmetrically provided with a support rod, the top end of the support rod is provided with a pulley, and an arc convex surface matched with the pulley is arranged on the pull rod.
[0010] In order to further realize the utility model, the short rod and the long rod of the pull rod are at a right angle, a connecting rod is arranged at one end of the pull rod connected with the concave buckle, and the connecting rod is perpendicular to the bottom surface of the concave buckle and the short rod of the pull rod.
[0011] In order to further realize the utility model, the bottom surface of the concave buckle is perpendicular to the two side walls.
[0012] In order to further realize the utility model, the pull rod is parallel to the central axis of the hollow type fixed rod.
[0013] In order to further realize the utility model, the outer wall of the water tank body is provided with a steam discharge pipe.
[0014] The utility model has the beneficial effects that:
[0015] The utility model adds temperature identification display device and self-locking buckle fixing device on the radiator cap, which basically eliminates the risk of being scalded by high-temperature steam when the driver opens the radiator cap unintentionally, in an emergency or lacks safety concept when the temperature of the vehicle engine is high.
[0016] This utility model integrates the push rod, positioning pin cylinder, and sealing gasket and fixes them together on the top of the radiator cap, and connects them vertically to the steam valve. When the steam valve moves up and down, it can be linked with the push rod to form a self-locking protection, so the driver cannot open the radiator cap under high temperature conditions.
[0017] When the steam valve is activated, the push rod of this invention is lifted by the steam valve, and the L-shaped pull rod pulls the concave buckle to form a wrapping shape with the fixing buckle. During the rotation of the radiator cover, there is no opening distance at the radiator opening, and the radiator cover cannot be opened. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of this utility model;
[0019] Figure 2 This is a diagram showing the working state of this utility model (with the steam valve open).
[0020] The meanings of the reference numerals in the attached diagram are as follows: 1. Small probe needle-type thermistor; 2. Wire; 3. Color temperature display; 4. Top rod; 5. Pull rod; 5-1. Short rod; 5-2. Long rod; 5-3. Connecting rod; 6. Concave buckle; 7. Positioning pin cylinder; 8. Sealing gasket; 9. Cap; 10. Fixing buckle; 11. Steam valve; 12. Air valve; 13. Steam exhaust pipe; 14. Spring; 15. Hollow fixing rod; 16. Cover; 17. Support rod; 18. Pulley; 19. Arc-shaped convex surface; 20. Water tank body. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0022] like Figure 1As shown, a chain-locked protective radiator cover for automobiles includes a water tank body 20, a cover body 16, and a cap 9 disposed on the top surface of the cover body 16. A fixing buckle 10 is provided at the bottom end of the cap 9. A hollow fixing rod 15 is disposed inside the cover body 16, with its top end fixedly connected to the bottom surface of the cap 9. The bottom end of the hollow fixing rod 15 is open, and a spring 14 is sleeved around its outer periphery. A small probe needle-type thermistor 1 and a color temperature display 3 are respectively disposed on the bottom and top surfaces of the cap 9. The small probe needle-type thermistor 1 is disposed inside the hollow fixing rod 15. A wire 2 is connected between the resistor 1 and the color temperature display 3. A steam valve 11 is installed below the hollow fixing rod 15. An air valve 12 passes through the center of the steam valve 11. An interlocking fixing protection device is also provided on the cap 9. The interlocking fixing protection device includes a top rod 4, a pull rod 5 and a concave buckle 6. The bottom end of the top rod 4 is vertically connected to the top surface of the steam valve 11, and the top end of the top rod 4 passes through the cap 9. The pull rod 5 is L-shaped. One end of the pull rod 5 is rotatably connected to the protruding end of the top rod 4, and the other end of the pull rod 5 is fixedly connected to the bottom surface of the concave buckle 6. The concave surface of the concave buckle 6 contacts the fixing buckle 10.
[0023] The cap 9 has a symmetrically arranged positioning pin cylinder 7 on its bottom surface, and the top rod 4 passes through the positioning pin cylinder 7. A sealing gasket 8 is provided between the positioning pin cylinder 7 and the bottom surface of the cap 9. The top surface of the cap 9 has a symmetrically arranged support rod 17, and a pulley 18 is provided at the top of the support rod 17. An arc-shaped convex surface 19 that cooperates with the pulley is provided on the pull rod 5.
[0024] The short rod 5-1 and the long rod 5-2 of the pull rod 5 are at a right angle. The end of the pull rod 5 that connects to the concave buckle 6 is provided with a connecting rod 5-3. The connecting rod 5-3 is perpendicular to the bottom surface of the concave buckle 6 and the short rod 5-1 of the pull rod 5. The bottom surface of the concave buckle 6 is perpendicular to the two side walls. The pull rod 5 is parallel to the central axis of the hollow fixing rod 15.
[0025] The outer wall of the water tank 20 is equipped with a steam exhaust pipe 13.
[0026] When the steam valve 11 is activated, the push rod 4 is lifted by the steam valve 11, and the L-shaped pull rod 5 pulls the concave buckle 6 to wrap and fix the buckle 10. During the rotation of the radiator cover 16, the radiator opening is at no opening distance, and the radiator cover cannot be opened.
Claims
1. A chain protection radiator cap for an automobile, comprising a water tank body, a cap body and a cap cover arranged on the top surface of the cap body, a fixing buckle is arranged at the bottom end of the cap cover, characterized in that: The hollow fixing rod (15) is arranged in the cover body (16), the top end of the hollow fixing rod (15) is fixedly connected with the bottom surface of the cap (9), the bottom end of the hollow fixing rod (15) is open, the outer periphery of the hollow fixing rod (15) is sleeved with the spring (14), the bottom surface and the top surface of the cap (9) are respectively provided with the small probe needle type thermistor (1) and the color type temperature display (3), the small probe needle type thermistor (1) is arranged in the hollow fixing rod (15), the lead wire (2) is arranged between the small probe needle type thermistor (1) and the color type temperature display (3) and communicates, the steam valve (11) is arranged below the hollow fixing rod (15), the air valve (12) is arranged in the center of the steam valve (11), the cap (9) is further provided with a chain fixed protection device, the chain fixed protection device comprises a top rod (4), a pull rod (5) and a concave buckle (6), the bottom end of the top rod (4) is vertically connected with the top surface of the steam valve (11), the top end of the top rod (4) penetrates into the cap (9), the pull rod (5) is L-shaped, one end of the pull rod (5) is rotationally connected with the penetrating end of the top rod (4), the other end of the pull rod (5) is fixedly connected with the bottom surface of the concave buckle (6), and the concave surface of the concave buckle (6) is in contact with the fixed buckle (10).
2. The latching protector for an automobile radiator cap according to claim 1, wherein: The bottom surface of the cap (9) is symmetrically provided with a positioning pin barrel (7), the top rod (4) penetrates into the positioning pin barrel (7), and the sealing gasket (8) is arranged between the positioning pin barrel (7) and the bottom surface of the cap (9).
3. The latching protector for an automobile radiator cap according to claim 1 or 2, characterized in that: The top surface of the cap (9) is symmetrically provided with a supporting rod (17), the top end of the supporting rod (17) is provided with a pulley (18), and the pull rod (5) is provided with an arc convex surface (19) matched with the pulley.
4. The latching device according to claim 3, wherein: The short rod (5-1) and the long rod (5-2) of the pull rod (5) are at right angles, one end of the pull rod (5) connected with the concave buckle (6) is provided with a connecting rod (5-3), and the connecting rod (5-3) is perpendicular to the bottom surface of the concave buckle (6) and the short rod (5-1) of the pull rod (5) respectively.
5. The latching device according to claim 4, wherein: The bottom surface of the concave buckle (6) is perpendicular to the two side walls.
6. The latching device for an automobile radiator cap according to claim 5, wherein: The pull rod (5) is parallel to the central axis of the hollow fixing rod (15).
7. The latching device according to claim 6, wherein: The outer wall of the water tank body (20) is provided with a steam discharge pipe (13).