An automobile thermostat

Abstract

The utility model relates to thermostat technical field especially an automobile thermostat, the funnel below is equipped with sealing structure, the valve seat inside is equipped with the top rod. This automobile thermostat, when the temperature control valve in the oil outlet pipe senses higher temperature, the temperature control valve opens, makes the lubricating liquid in the oil storage warehouse to flow from the oil outlet pipe, enters the funnel, flows to the top rod surface, plays the role of lubrication, reduces the temperature, when the temperature control valve senses the temperature reduces, closes the temperature control valve, prevents the lubricating liquid and flows, can control the injection of lubricating liquid automatically, reduces the insufficient lubrication of top rod and appears the situation of friction heat generation, inserts the first sealing washer and second sealing washer in the installation groove, the operator screws the funnel in the annular plate inboard, makes first sealing washer and second sealing washer two sides respectively with funnel and annular plate abut tightly, can play the role of double sealing, reduces the leakage from the thread gap when oiling, leads to the waste condition of lubricating liquid.

Description

Technical Field

[0001] This utility model relates to the field of thermostat technology, specifically to an automotive thermostat. Background Technology

[0002] The thermostat is a core component that controls the flow path of engine coolant. Its main function is to ensure that the engine quickly reaches and maintains its optimal operating temperature. By continuously adjusting the circulation path of the coolant, it controls the engine operating temperature within the optimal range, ensuring complete combustion of fuel and reducing wear.

[0003] For example, a type of automotive thermostat with announcement number "CN218717095U" uses a funnel to facilitate the flow of lubricating oil along the outer wall of the push rod into the valve seat. This reduces friction and heat generation between the push rod and the valve seat during use, extending the lifespan of the push rod and making the thermostat more convenient to use. However, this thermostat requires operators to periodically inject lubricating fluid through the funnel. During vehicle operation, the push rod continuously wears down, easily leading to insufficient lubrication and frictional heat generation. Furthermore, when injecting lubricating fluid, leakage from the threaded gaps can occur, resulting in fluid waste. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of insufficient lubrication and frictional heat caused by the continuous wear of the push rod during vehicle operation, which requires operators to periodically inject lubricating fluid through a funnel. At the same time, the lubricating fluid is prone to leakage from the thread gap when injecting lubricating fluid, resulting in lubricating fluid waste. Therefore, a new type of automotive thermostat is proposed.

[0005] To achieve the above objectives, this utility model provides the following technical solution: Design an automotive thermostat, including a valve body and a valve seat. The valve seat is installed on the top of the valve body, and an annular plate is fixedly connected to the top of the valve seat. The inner wall of the annular plate is threadedly connected to a funnel. An oil injection structure is provided at the top of the funnel, and a sealing structure is provided at the bottom of the funnel. A push rod is installed inside the valve seat.

[0006] This setting: Through the designed oil injection structure, oil can be automatically injected during vehicle operation, reducing continuous wear of the pushrod and the occurrence of frictional heat.

[0007] Preferably, the sealing structure includes a first sealing ring and a second sealing ring, the outer walls of the first sealing ring and the second sealing ring are inserted into the mounting groove, and the two sides of the first sealing ring and the second sealing ring are respectively pressed against the funnel and the annular plate.

[0008] This feature, achieved through the first and second sealing rings, provides a seal and reduces lubricant leakage.

[0009] Preferably, the mounting groove is machined on the inner wall of the annular plate.

[0010] This feature allows the first and second sealing rings to be held in place by the mounting slots, enabling them to be replaced when severely worn.

[0011] Preferably, the oil injection structure includes an oil storage tank, an oil injection pipe is fixedly connected to the top of the oil storage tank, the outside of the oil storage tank is fixedly connected to a funnel, multiple oil outlet pipes are fixedly connected to the bottom of the oil storage tank, an elastic ring is fixedly connected to the inside of the oil storage tank, and a third elastic sealing ring is installed on the inner wall of the elastic ring.

[0012] This setting: By adding an elastic ring, additional elasticity can be provided, ensuring that the inner side of the third elastic sealing ring is always in contact with the top rod.

[0013] Preferably, the inner wall of the third elastic sealing ring abuts against the top rod.

[0014] This feature: The third elastic sealing ring provides a sealing effect. The automotive thermostat proposed in this utility model has the following advantages: through the cooperation of the funnel and the oil injection structure, when the push rod continuously wears and generates frictional heat during vehicle operation, the temperature control valve in the oil outlet pipe senses the high temperature and opens, allowing the lubricating fluid in the oil reservoir to flow out from the oil outlet pipe, enter the funnel, and flow to the surface of the push rod, thus lubricating and reducing the temperature. When the temperature control valve senses a decrease in temperature, it closes to prevent the lubricating fluid from flowing out, thereby achieving automatic control of the lubricating fluid injection and reducing the occurrence of insufficient lubrication and frictional heat generation in the push rod.

[0015] By using the annular plate and sealing structure, the first and second sealing rings are inserted into the mounting groove. Then, the operator tightens the funnel inside the annular plate, so that the first and second sealing rings are pressed against the funnel and the annular plate on both sides, thus achieving a double sealing effect and reducing leakage from the thread gap during oil injection, which would lead to waste of lubricating fluid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A partial front sectional view; Figure 3 for Figure 2 A magnified view of part A in the diagram; Figure 4 for Figure 2 A magnified view of part B in the diagram; Figure 5 This is a half-section three-dimensional schematic diagram of the annular plate; Figure 6 for Figure 1 A magnified view of part of C; Figure 7 This is a three-dimensional schematic diagram of an elastic ring.

[0017] In the diagram: 1. Valve body, 2. Valve seat, 3. Sealing structure, 301. First sealing ring, 302. Second sealing ring, 303. Mounting groove, 4. Push rod, 5. Annular plate, 6. Oil injection structure, 601. Oil reservoir, 602. Oil injection pipe, 603. Oil outlet pipe, 604. Elastic ring, 605. Third elastic sealing ring, 7. Funnel. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings: See attached document Figure 1-7 In this embodiment, an automotive thermostat includes a valve body 1 and a valve seat 2. The valve seat 2 is installed on the top of the valve body 1, and an annular plate 5 is fixedly connected to the top of the valve seat 2. The inner wall of the annular plate 5 is threadedly connected to a funnel 7. An oil injection structure 6 is provided at the top of the funnel 7, and a sealing structure 3 is provided at the bottom of the funnel 7. A push rod 4 is installed inside the valve seat 2.

[0019] The sealing structure 3 includes a first sealing ring 301 and a second sealing ring 302. The outer walls of the first sealing ring 301 and the second sealing ring 302 are inserted into the mounting groove 303. The two sides of the first sealing ring 301 and the second sealing ring 302 are respectively pressed against the funnel 7 and the annular plate 5. The mounting groove 303 is machined on the inner wall of the annular plate 5. The materials of the first sealing ring 301, the second sealing ring 302 and the third sealing ring 605 are all made of nitrile rubber, which is low in cost, has good oil resistance, can withstand temperatures of 120-150℃, and has a certain tolerance to ordinary coolant. Insert the first sealing ring 301 and the second sealing ring 302 into the mounting groove 303. Then, the operator tightens the funnel 7 inside the annular plate 5 so that the first sealing ring 301 and the second sealing ring 302 are respectively pressed against the funnel 7 and the annular plate 5, so as to achieve a double sealing effect and reduce the leakage from the thread gap during oil injection, which would lead to the waste of lubricating fluid.

[0020] The oil filling structure 6 includes an oil storage tank 601, an oil filling pipe 602 fixedly connected to the top of the oil storage tank 601, a funnel 7 fixedly connected to the outside of the oil storage tank 601, multiple oil outlet pipes 603 fixedly connected to the bottom of the oil storage tank 601, an elastic ring 604 fixedly connected to the inside of the oil storage tank 601, a third elastic sealing ring 605 installed on the inner wall of the elastic ring 604, and the inner wall of the third elastic sealing ring 605 abutting against the top rod 4; When the pushrod 4 wears continuously during vehicle operation, generating frictional heat, the temperature control valve in the oil outlet pipe 603 senses a high temperature and opens, allowing the lubricant in the oil reservoir 601 to flow out of the oil outlet pipe 603, into the funnel 7, and onto the surface of the pushrod 4, thus providing lubrication and reducing the risk of insufficient lubrication and frictional heat generation in the pushrod 4. When the temperature sensed by the temperature control valve decreases, it closes to prevent the lubricant from flowing out. When the lubricant in the oil reservoir 601 is depleted, the operator opens the valve on the oil injection pipe 602 to inject lubricant into the oil reservoir 601 through the oil injection pipe 602, where the third sealing ring 605 provides a seal.

[0021] Working principle: When using a car thermostat: Insert the first sealing ring 301 and the second sealing ring 302 into the mounting groove 303. Then, the operator tightens the funnel 7 inside the annular plate 5 so that the first sealing ring 301 and the second sealing ring 302 are respectively pressed against the funnel 7 and the annular plate 5 to achieve a double sealing effect and reduce the leakage from the thread gap during oil injection, which would lead to the waste of lubricating fluid. The valve body 1 is then installed on the vehicle. The valve body 1 controls the opening and closing of the engine coolant flow path. When the pushrod 4 wears continuously during vehicle operation and generates heat due to friction, the temperature control valve in the oil outlet pipe 603 senses the high temperature and opens, allowing the lubricant in the oil reservoir 601 to flow out of the oil outlet pipe 603, into the funnel 7, and onto the surface of the pushrod 4, thus lubricating it and reducing its temperature. When the temperature control valve senses a decrease in temperature, it closes to prevent the lubricant from flowing out, thereby automatically controlling the injection of lubricant and reducing the occurrence of insufficient lubrication and frictional heat in the pushrod 4. When the lubricant in the oil reservoir 601 is depleted, the operator opens the valve on the oil injection pipe 602 to inject lubricant into the oil reservoir 601 through the oil injection pipe 602. The third sealing ring 605 provides a sealing effect.

[0022] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. An automotive thermostat, comprising a valve body (1) and a valve seat (2), wherein the valve seat (2) is mounted on top of the valve body (1), characterized in that: An annular plate (5) is fixedly connected above the valve seat (2). The inner wall of the annular plate (5) is threadedly connected to the funnel (7). An oil injection structure (6) is provided above the inside of the funnel (7). A sealing structure (3) is provided below the funnel (7). A push rod (4) is installed inside the valve seat (2). The sealing structure (3) includes a first sealing ring (301) and a second sealing ring (302). The outer walls of the first sealing ring (301) and the second sealing ring (302) are inserted into the mounting groove (303). The two sides of the first sealing ring (301) and the second sealing ring (302) are respectively pressed against the funnel (7) and the annular plate (5).

2. The automotive thermostat according to claim 1, characterized in that: The mounting groove (303) is machined on the inner wall of the annular plate (5).

3. The automotive thermostat according to claim 1, characterized in that: The oil injection structure (6) includes an oil storage tank (601), an oil injection pipe (602) is fixedly connected above the oil storage tank (601), the outside of the oil storage tank (601) is fixedly connected to a funnel (7), a plurality of oil outlet pipes (603) are fixedly connected below the oil storage tank (601), and an elastic ring (604) is fixedly connected to the inside of the oil storage tank (601).

4. The automotive thermostat according to claim 3, characterized in that: A third elastic sealing ring (605) is installed on the inner wall of the elastic ring (604).

5. The automotive thermostat according to claim 4, characterized in that: The inner wall of the third elastic sealing ring (605) abuts against the top rod (4).

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