Automobile thermostat

Abstract

The utility model relates to an automobile thermostat which comprises a wax storage pipe and an installation support installed outside the wax storage pipe, a sealing mechanism is arranged on the installation support and comprises a telescopic annular installation wall, and an annular sealing ring is arranged on the outer side of the annular installation wall in a surrounding mode. The outer edges of the upper end and the lower end of the sealing ring are connected with the outer side wall of the annular installation wall in a sealed mode, filling gas is arranged between the annular installation wall and the sealing ring, and an elastic abutting piece is arranged at the upper end of the annular installation wall. The gas filled between the annular installation wall and the sealing ring enables the sealing ring to be attached to the inner side wall of the water pipe and the inner side wall of the cover to achieve the sealing effect, if the cover exerts too large pressure on the annular installation wall and the sealing ring, the elastic abutting piece can exert pressure, a certain moving space is provided for the annular installation wall and the sealing ring, and the sealing ring is prevented from being broken due to too large pressure; and meanwhile, gas generates pressure on one side of the sealing ring, so that the service life of the sealing ring is not shortened too much due to the fact that the two ends of the sealing ring are pressed by rigid materials.

Description

Technical Field

[0001] The utility model relates to the technical field of thermostats, in particular to an automobile thermostat. Background Art

[0002] The car thermostat is a valve that controls the flow path of the engine coolant. The product automatically adjusts the amount of water entering the radiator according to the cooling water temperature to ensure that the engine works within the appropriate temperature range, which can save energy. Because the engine consumes a lot of fuel at low temperatures, and it is more damaging to the car, including easy carbon deposits and a series of problems.

[0003] The installation method of the car thermostat is: place the car thermostat in the water pipe, and then cover the water pipe with a cover. At present, in order to prevent the coolant from leaking out during installation, most car thermostats are equipped with an annular sealing gasket at the upper end of the mounting bracket of the car thermostat, and then a holding ring is provided at the lower end of the cover, so that the holding ring is squeezed between the holding ring and the mounting bracket after the cover is installed. However, since most of the sealing gaskets installed between the cover and the car thermostat generally have low elasticity, and the sealing gaskets are prone to aging and hardening after long-term use, the sealing performance is relatively poor. Utility Model Content

[0004] The utility model provides an automobile thermostat, which solves the above problems existing in the use process of the prior art.

[0005] The technical solution of the utility model is achieved as follows: an automobile thermostat, comprising a wax storage tube and a mounting bracket installed on the outside of the wax storage tube, the mounting bracket is provided with a sealing mechanism, the sealing mechanism comprises a retractable annular mounting wall, an annular sealing ring is arranged around the outside of the annular mounting wall, the outer edges of the upper and lower ends of the sealing ring are both sealed and connected to the outer wall of the annular mounting wall, filling gas is provided between the annular mounting wall and the sealing ring, and an elastic supporting member is provided at the upper end of the annular mounting wall.

[0006] By adopting the above technical solution, when the cover is installed on the water pipe, the filling gas between the annular mounting wall and the sealing ring will make the sealing ring stick to the inner wall of the water pipe and the cover to achieve a sealing effect. At the same time, if the pressure of the cover on the annular mounting wall and the sealing ring is too large, the elastic supporting member can be used to share the pressure of the cover, giving the annular mounting wall and the sealing ring a certain amount of movement space, thereby preventing the sealing ring from breaking due to excessive pressure. At the same time, since the gas on one side of the sealing ring exerts pressure on it, the sealing ring will not reduce its service life too much because of the pressure of rigid materials on both ends like the sealing gasket in the prior art.

[0007] The utility model is further configured as follows: the annular mounting wall includes a first annular wall and a second annular wall, the second annular wall is slidably arranged on the outside of the first annular wall, and the outer edges of the upper and lower ends of the sealing ring are respectively sealed and connected with the second annular wall and the outer side wall of the first annular wall.

[0008] By adopting the above technical solution, the structure can realize the extension and retraction of the annular installation wall by sliding the second annular wall up and down on the first annular wall.

[0009] The utility model is further configured as follows: a first sealing gasket is fixedly arranged on the outer side of the first annular wall, and the first sealing gasket is abutted between the first annular wall and the second annular wall.

[0010] By adopting the above technical solution, the structure is used to prevent the leakage of filling gas.

[0011] The utility model is further configured as follows: the annular mounting wall is detachably arranged on the mounting bracket.

[0012] By adopting the above technical solution, the structure is used to make parts such as the annular installation wall and the sealing ring replaceable.

[0013] The utility model is further configured as follows: a third annular wall is arranged on the mounting bracket, and the inner side wall of the first annular wall is threadedly connected to the outer side wall of the third annular wall.

[0014] By adopting the above technical solution, the threaded connection method can facilitate the detachable connection of the annular mounting wall on the mounting bracket.

[0015] The utility model is further configured as follows: a second sealing gasket is arranged between the third annular wall and the first annular wall.

[0016] By adopting the above technical solution, the structure can further improve the performance of the utility model in preventing coolant leakage.

[0017] The utility model is further configured as follows: the elastic supporting member is a spring.

[0018] By adopting the above technical solution, the spring can buffer the pressure exerted by the cover on the annular installation wall when the annular installation wall can no longer be compressed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model in which the sealing ring is pressed against the inner wall of the water pipe and the cover after the cover is closed on the water pipe;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 3 for Figure 2 A local enlarged schematic diagram of the middle A;

[0023] Figure 4 for Figure 2 A local enlarged schematic diagram of point B in the middle.

[0024] Numbers in the figure: 1 mounting bracket, 11 third annular wall, 2 wax storage tube, 31 annular mounting wall, 311 first annular wall, 312 second annular wall, 32 sealing ring, 33 filling gas, 34 elastic supporting member, 35 first sealing gasket, 36 second sealing gasket, 4 water pipe, 5 cover. DETAILED DESCRIPTION

[0025] The following will be combined with the attached embodiment of the present utility model Figure 1-4 , clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example:

[0027] like Figures 1 to 4 As shown, the utility model discloses an automobile thermostat, including a wax storage tube 2 and a mounting bracket 1 mounted on the outside of the wax storage tube 2. The wax storage tube 2 and the mounting bracket 1 are both in the same shape as the automobile thermostat in the prior art. In addition, a piston push rod and other structures are also arranged inside the wax storage tube 2, and a large valve and a small valve are also arranged outside the wax storage tube 2. The arrangement and working principle of these parts are the same as those in the prior art, so they are not described in detail. The mounting bracket 1 is provided with a sealing mechanism.

[0028] The specific structure of the sealing mechanism can be: the sealing mechanism includes a retractable annular mounting wall 31, an annular sealing ring 32 is arranged around the outer side of the annular mounting wall 31, the outer edges of the upper and lower ends of the sealing ring 32 are sealed and connected to the outer wall of the annular mounting wall 31, filling gas 33 is arranged between the annular mounting wall 31 and the sealing ring 32, and an elastic supporting member 34 is arranged at the upper end of the annular mounting wall 31, and the elastic supporting member 34 can be a spring.

[0029] The working principle of the structure is as follows: when the thermostat is installed in the water pipe 4, the cover 5 of the water pipe 4 gradually presses the annular installation wall 31 downwards in the process of spiraling downwards. In this process, the annular installation wall 31 is compressed first. During the compression of the annular installation wall 31, the filling gas 33 will be compressed. At this time, the filling gas 33 will push the sealing ring 32 outwards. At this time, the sealing ring 32 will gradually press on the inner wall of the water pipe 4 and the inner wall of the cover 5, playing a sealing role to prevent the coolant in the water pipe 4 from leaking. The hardness of the elastic abutment 34 should be set as follows: when the sealing ring 32 is firmly attached to the inner wall of the water pipe 4 and the cover 5 and the annular installation wall 31 cannot be compressed under the action of the filling gas 33, the elastic abutment 34 will be compressed during the downward rotation of the cover 5, thereby reducing the pressure on the annular installation wall 31 and preventing the sealing ring 32 from breaking.

[0030] The specific structure of the annular mounting wall 31 can be: the annular mounting wall 31 includes a first annular wall 311 and a second annular wall 312, wherein the second annular wall 312 is slidably arranged on the outer side of the first annular wall 311, and the first annular wall 311 is detachably arranged on the mounting bracket 1. In addition, a first sealing gasket 35 is fixedly arranged on the outer side of the first annular wall 311, and the first sealing gasket 35 is abutted between the first annular wall 311 and the second annular wall 312, and the outer edges of the upper and lower ends of the sealing ring 32 are respectively sealed and connected with the outer side walls of the second annular wall 312 and the first annular wall 311.

[0031] The detachable solution of the first annular wall 311 is as follows: a third annular wall 11 is fixedly provided on the mounting bracket 1 , the inner side wall of the first annular shape is threadedly connected to the outer side wall of the third annular wall 11 , and a second sealing gasket 36 is provided between the third annular wall 11 and the first annular wall 311 .

[0032] The installation method of the above structure is to first thread the annular installation wall 31 onto the automobile thermostat, then put the automobile thermostat into the water pipe 4, and finally place the elastic support member 34 on the upper end of the annular installation wall 31 and cover the cover 5 to complete the installation.

[0033] It should also be pointed out that the terms used in the present invention, such as "front", "rear", "vertical", "horizontal", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automobile thermostat, comprising a wax storage tube (2) and a mounting bracket (1) mounted on the outside of the wax storage tube (2), characterized in that: The mounting bracket (1) is provided with a sealing mechanism, the sealing mechanism comprising a retractable annular mounting wall (31), an annular sealing ring (32) is arranged around the outer side of the annular mounting wall (31), the outer edges of the upper and lower ends of the sealing ring (32) are both sealed to the outer side wall of the annular mounting wall (31), a filling gas (33) is arranged between the annular mounting wall (31) and the sealing ring (32), and an elastic supporting member (34) is arranged at the upper end of the annular mounting wall (31).

2. The automotive thermostat according to claim 1, characterized in that: The annular mounting wall (31) comprises a first annular wall (311) and a second annular wall (312); the second annular wall (312) is slidably arranged on the outside of the first annular wall (311); the outer edges of the upper and lower ends of the sealing ring (32) are respectively sealed with the second annular wall (312) and the outer side wall of the first annular wall (311).

3. The automotive thermostat according to claim 2, characterized in that: A first sealing gasket (35) is fixedly arranged on the outer side of the first annular wall (311), and the first sealing gasket (35) is abutted between the first annular wall (311) and the second annular wall (312).

4. The automotive thermostat according to claim 3, characterized in that: The annular mounting wall (31) is detachably arranged on the mounting bracket (1).

5. The automotive thermostat according to claim 4, characterized in that: The mounting bracket (1) is provided with a third annular wall (11), and the inner side wall of the first annular wall (311) is threadedly connected to the outer side wall of the third annular wall (11).

6. The automotive thermostat according to claim 5, characterized in that: A second sealing gasket (36) is provided between the third annular wall (11) and the first annular wall (311).

7. The automobile thermostat according to claim 6, characterized in that: The elastic supporting member (34) is a spring.

Images