CN214741631U

CN214741631U - Thermostat casing

Info

Publication number: CN214741631U
Application number: CN202121061846.8U
Authority: CN
Inventors: 张小勇; 魏玉文; 徐浩
Original assignee: Henan Diesel Engine Industry Co Ltd
Current assignee: Henan Diesel Engine Industry Co Ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-11-16
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a thermostat casing, including midbody, flange pipe, apron and thermostat core, the thermostat core sets up the inside at the midbody, the midbody is "protruding" style of calligraphy structure, and the upper surface, the left surface, the right flank and the trailing flank of midbody are provided with the same first flange face of size, second flange face, third flange face and fourth flange face respectively, first flange face is thermostat macrocycle delivery port, and second flange face and third flange face are the microcirculation delivery port, and the fourth flange face is the thermostat water inlet, and this thermostat casing is applicable to multiple engine and arranges the form, reduces the part kind for the part is changed and has interchangeability, convenient production and use.

Description

Thermostat casing

Technical Field

The utility model relates to the technical field of engines, specifically a thermostat casing.

Background

The thermostat is a device for automatically adjusting the temperature of an engine cooling system, is usually arranged in a cooling water path between an engine circulating water outlet and a radiator, automatically adjusts the water quantity entering the radiator through the opening degree of a core controlled by the temperature in the thermostat, further controls the water inlet temperature of an engine circulating water pump, ensures that all parts of an engine are in proper temperature ranges under various working conditions, and ensures that all parts of the engine work normally.

The conventional thermostat can only be suitable for one engine arrangement form, can not be universal for various engine arrangement forms, has no universal design on external interface parts, is not uniform in external interfaces and does not have interchangeability.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to overcome current defect, provide a thermostat casing, be applicable to multiple engine and arrange the form, reduce the part kind for the part is changed and is had interchangeability, and convenient production and use can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a thermostat shell, includes midbody, flange pipe, apron and thermostat core, the thermostat core sets up the inside at the midbody, the midbody is "protruding" style of calligraphy structure, and the upper surface, the left surface, the right flank and the trailing flank of midbody are provided with the same first flange face of size, second flange face, third flange face and fourth flange face respectively, first flange face is thermostat macrocycle delivery port, and second flange face and third flange face are the microcirculation delivery port, and the fourth flange face is the thermostat water inlet, the apron sets up on second flange face or third flange face for change the microcirculation water outlet direction, all the other flange faces all with flange union coupling, flange pipe and outside correspond the device and be connected.

As an optimal technical scheme of the utility model, all be provided with the first screw thread blind hole that is used for flange pipe or apron installation on first flange face, second flange face, third flange face and the fourth flange face.

As a preferred technical scheme of the utility model, be close to the fourth flange face in the intermediate body and be provided with first cavity, the upper portion of first cavity is provided with the fourth cavity, and the both ends of fourth cavity communicate first flange face and first cavity respectively, are close to the second flange face and are provided with the second cavity, are close to the third flange face and are provided with the third cavity, are linked together through the passageway between second cavity and the third cavity, first cavity is linked together with the passageway.

As the utility model discloses a preferred technical scheme, first cavity communicates with the fourth cavity and forms the big circulating channel of cooling water, and first cavity links to each other with the passageway and forms the inside cooling water passageway of thermostat core, and second cavity, third cavity and passageway form the inside little circulating channel of cooling water of midbody.

As an optimized technical scheme of the utility model, the top of thermostat core is from taking rubber seal ring.

As an optimal technical scheme of the utility model, the bottom of midbody is provided with the three round platform that is "article" style of calligraphy and distributes, is provided with in the round platform to be used for the fixed second screw thread blind hole of casing installation.

As an optimal technical scheme of the utility model, all be provided with on first flange face, second flange face and the third flange face and be used for the sealed O type circle groove of flange face contact, O type circle inslot is provided with the sealing washer.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the shell of the thermostat can select the direction of small-circulation water outlet by changing the mounting position of the cover plate according to the arrangement form of the engine, can also be used by combining a plurality of thermostats, and is suitable for various engine arrangement forms;

2. the intermediate adopts modular design on the outer flange surfaces, so that the types of parts are reduced, and the organization and production are convenient;

3. the external interfaces of the shell of the thermostat are flange pipes, and the external design is simple and easy.

4. The thermostat assembly is simple in structure and convenient and fast to maintain and operate.

Drawings

FIG. 1 is a schematic diagram of the intermediate structure;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a bottom view of FIG. 1;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 5 is a cross-sectional view taken at B-B of FIG. 1;

FIG. 6 is a schematic view of a flange structure;

FIG. 7 is a schematic structural view of a small-cycle right-outlet thermostat housing of the engine of the present invention;

FIG. 8 is a schematic view of the operating principle of the small-cycle right-outlet thermostat when the cartridge is not opened;

FIG. 9 is a schematic view of the working principle of the small-cycle right-outlet thermostat when the cartridge is fully opened;

fig. 10 is a schematic view of the structure of the small-cycle left-water-outlet thermostat shell of the engine of the present invention.

In the figure: the structure comprises a 1 intermediate body, a 10 fourth flange face, a 11 first flange face, a 12 second flange face, a 13 third flange face, a 14 first threaded blind hole, a 15 first cavity, a 16 fourth cavity, a 17 second cavity, a 18 third cavity, a 19 channel, a 2 flange pipe, a 3 cover plate, a 4 thermostat core, a 5 circular table, a 6 second threaded blind hole and a 7O-shaped ring groove.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, but not all of the embodiment (for convenience of description and understanding, the following description is made with the upper side of fig. 1 being the upper side, the left side of fig. 1 being the left side, and the right side of fig. 1 being the right side). Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1: referring to fig. 1-6, the present invention provides a technical solution: a thermostat shell comprises a middle body 1, a flange pipe 2, a cover plate 3 and a thermostat core 4, wherein the thermostat core 4 is arranged in the middle of the plane of a fourth flange face 10, the thermostat core 4 is arranged in the middle of the plane of a first flange face 11, a rubber sealing ring is arranged at the top of the thermostat core 4, the middle body 1 is of a convex structure, the upper surface, the left side face, the right side face and the rear side face of the middle body 1 are respectively provided with a first flange face 11, a second flange face 12, a third flange face 13 and a fourth flange face 10 which are the same in size, the first flange face 11 is a thermostat large-circulation water outlet, the second flange face 12 and the third flange face 13 are small-circulation water outlets, the fourth flange face 10 is a thermostat water inlet, a first cavity 15 is arranged in the middle body 1 and close to the fourth flange face 10, a fourth cavity 16 is arranged at the upper part of the first cavity 15, two ends of the fourth cavity 16 are respectively communicated with the first flange surface 11 and the first cavity 15, a second cavity 17 is arranged close to the second flange surface 12, a third cavity 18 is arranged close to the third flange surface 13, the second cavity 17 is communicated with the third cavity 18 through a channel 19, the first cavity 15 is communicated with the fourth cavity 16 to form a cooling water large circulation channel, the first cavity 15 is connected with the channel 19 to form a cooling water channel inside the thermostat core, the second cavity 17, the third cavity 18 and the channel 19 form a small circulation channel for cooling water inside the intermediate body 1, the first flange surface 11, the second flange surface 12, the third flange surface 13 and the fourth flange surface 10 are respectively provided with a first threaded blind hole 14 for mounting the flange pipe 2 or the cover plate 3, so as to facilitate the dismounting and mounting of the flange pipe 2 or the cover plate 3, the first flange surface 11, the second flange surface 12 and the third flange surface 13 are all provided with O-shaped ring grooves 7 for flange surface contact sealing, and sealing rings are arranged in the O-shaped ring grooves 7.

As shown in fig. 7-9, when small-cycle right water outlet is required, the thermostat core 4 is installed in the intermediate body 1, the cover plate 3 is installed on the second flange surface 12 through the fastening bolt, the flange pipes 2 are respectively installed on the first flange surface 11, the third flange surface 13 and the fourth flange surface 10, the flange pipe 2 installed on the first flange surface 11 is connected with the engine radiator, the flange pipe 2 installed on the third flange surface 13 is connected with the engine circulating water pump, and the flange pipe 2 installed on the fourth flange surface 10 is connected with the engine water outlet pipe;

when in work: the engine is started, the temperature of the circulating water outlet of the engine is lower than the opening temperature of the thermostat core 4, the thermostat core 4 is in a closed state, the circulating water outlet of the engine enters the middle body through the flange pipe 2 arranged on the fourth flange surface 10, directly flows into the channel 19 through the thermostat core 4, then flows into the third cavity 18, and flows into the circulating water pump through the flange pipe 2 arranged on the third flange surface 13, so that the warming-up time is shortened, and the low-load performance is improved;

along with the increase of the power of an engine, the temperature of the circulating water of the engine is gradually increased, the temperature of the circulating water of the engine is higher than the opening temperature of the thermostat core 4, the thermostat core 4 is gradually opened, a part of the circulating water of the engine enters the fourth cavity 16 through the opening at the upper end of the thermostat core 4, enters the radiator through the flange pipe 2 arranged on the first flange surface 11, flows into the circulating water pump after being cooled by the radiator, and the other part of the circulating water flows into the channel, then flows into the third cavity 18 and flows into the circulating water pump through the flange pipe 2 arranged on the third flange surface 13;

when the engine power is further increased and the temperature of the circulating water outlet of the engine is higher than the full starting temperature of the thermostat core 4, the thermostat core 4 is fully opened, the lower part of the thermostat core 4 moves downwards, cooling water enters the fourth cavity 16 through the opening of the thermostat core 4, enters a radiator through the flange pipe 2 arranged on the first flange surface 11, and flows into the circulating water pump after being cooled by the radiator; along with the change of the power of the engine and the change of the temperature of the outlet water of the circulating water, the thermostat core 4 continuously acts, cooling water forms different cycles in the intermediate body 1, and the heat efficiency of the engine is improved.

The bottom of the intermediate body 1 is provided with three round tables 5 distributed in a shape like a Chinese character pin, and second threaded blind holes 6 for installing and fixing the shell are formed in the round tables 5, so that the thermostat can be conveniently installed and fixed;

the first flange surface 11, the second flange surface 12 and the third flange surface 13 are all provided with O-shaped ring grooves 7 for contact sealing of the flange surfaces, and sealing rings are arranged in the O-shaped ring grooves 7 to prevent water leakage;

example 2: referring to fig. 10, the difference from embodiment 1 is that when a small-cycle left water discharge is required, the thermostat core 4 is first installed in the intermediate body 1, the cover plate 3 is installed on the third flange surface 13 through fastening bolts, the flange pipes 2 are respectively installed on the first flange surface 11, the second flange surface 12 and the fourth flange surface 10, the flange pipe 2 installed on the first flange surface 11 is connected to the engine radiator, the flange pipe 2 installed on the second flange surface 12 is connected to the engine circulating water pump, the flange pipe 2 installed on the fourth flange surface 10 is connected to the engine water outlet pipe, and the water flow cooling cycle mode is the same as embodiment 1.

Example 3: when a plurality of thermostats need to be installed, two or more thermostat shells are connected end to end through the flange pipe 2, and the installation of the plurality of thermostats is realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a thermostat housing, includes midbody (1), flange pipe (2), apron (3) and thermostat core (4), thermostat core (4) set up the inside at midbody (1), its characterized in that: the middle body (1) is of a convex structure, the upper surface, the left side face, the right side face and the rear side face of the middle body (1) are respectively provided with a first flange face (11), a second flange face (12), a third flange face (13) and a fourth flange face (10) which are the same in size, the first flange face (11) is a thermostat large-circulation water outlet, the second flange face (12) and the third flange face (13) are small-circulation water outlets, the fourth flange face (10) is a thermostat water inlet, the cover plate (3) is arranged on the second flange face (12) or the third flange face (13) and used for changing the small-circulation water outlet direction, the rest flange faces are connected with the flange pipe (2), and the flange pipe (2) is connected with an external corresponding device.

2. A thermostat housing according to claim 1 wherein: and the first flange surface (11), the second flange surface (12), the third flange surface (13) and the fourth flange surface (10) are all provided with first threaded blind holes (14) for mounting the flange pipe (2) or the cover plate (3).

3. A thermostat housing according to claim 1 wherein: a first cavity (15) is arranged in the intermediate body (1) close to the fourth flange face (10), a fourth cavity (16) is arranged on the upper portion of the first cavity (15), two ends of the fourth cavity (16) are respectively communicated with the first flange face (11) and the first cavity (15), a second cavity (17) is arranged close to the second flange face (12), a third cavity (18) is arranged close to the third flange face (13), the second cavity (17) is communicated with the third cavity (18) through a channel (19), and the first cavity (15) is communicated with the channel (19).

4. A thermostat housing according to claim 3 wherein: the first cavity (15) is communicated with the fourth cavity (16) to form a cooling water large circulation channel, the first cavity (15) is connected with the channel (19) to form a thermostat core internal cooling water channel, and the second cavity (17), the third cavity (18) and the channel (19) form a middle body (1) internal cooling water small circulation channel.

5. A thermostat housing according to claim 1 wherein: the top of the thermostat core (4) is provided with a rubber sealing ring.

6. A thermostat housing according to claim 1 wherein: the bottom of the intermediate body (1) is provided with three round tables (5) distributed in a shape like a Chinese character pin, and second threaded blind holes (6) used for installing and fixing the shell are formed in the round tables (5).

7. A thermostat housing according to claim 1 wherein: and the first flange surface (11), the second flange surface (12) and the third flange surface (13) are all provided with O-shaped ring grooves (7) for contact sealing of the flange surfaces, and sealing rings are arranged in the O-shaped ring grooves (7).