CN209179865U - A kind of thermostat - Google Patents

Abstract

The utility model relates to engine arts, disclose a kind of thermostat, including push rod, and one end is equipped with ball head structure, and the ball head structure is articulated with bracket.By the way that ball head structure is arranged in one end of push rod, and by ball head structure and bracket ball-joint, ball head structure is not easy to be detached from bracket the utility model；And ball head structure can be relative to holder pivots, push rod can occur to deflect by a small margin under external force, push rod can restore vertical state under self gravitation effect, solve the problems, such as that existing push rod can not restore vertical state then due to the deflection under water impact and push rod is caused easily to be deviate from from bracket.

Description

A kind of thermostat

Technical field

The utility model relates to engine art more particularly to a kind of thermostats.

Background technique

The function of engine-cooling system is to be held at engine in all operating conditions within the scope of appropriate temperature.It is cooling System should prevent engine overheat, and winter engine is prevented to be subcooled again.Coolant temperature is automatically adjusted by thermostat, is followed greatly Cooling water is cooled down by radiator of water tank when ring；Coolant liquid is directly entered water pump when partial circulating, is brought rapidly up diesel engine, Reach and operates normally required temperature.If thermostat breaks down, it can make the temperature of coolant liquid that can not adjust, then cause Engine occurs being subcooled or problems of excessive heat.

The push rod of existing thermostat is cylindrical structure, and one end of cylindrical structure and the bracket of thermostat rivet.Engine fortune During row, there are pressure jumps especially in thermostat opening process, bigger thrust can be generated to push rod, so that push rod Run-off the straight easily causes push rod to be deviate from from riveting place, leads to thermostat failure.

Utility model content

The purpose of this utility model is to provide a kind of thermostat, when solving using existing thermostat, opened in thermostat The problem of easily causing push rod to be deviate from during opening from riveting place because of pressure jump.

For this purpose, the utility model uses following technical scheme:

A kind of thermostat, comprising:

Push rod, one end are equipped with ball head structure, and the ball head structure is articulated with bracket；

Shell, one end are connected to the bracket, and the bracket is open equipped with systemic circulation；

The temperature module, one end are sheathed on outside the push rod and can move axially relative to the push rod, the other end It is pierced by the bracket and protrudes into the shell；And

First valve plate, the second valve plate, one end of the temperature module are connected to first valve plate, and the other end is connected to institute State the second valve plate；

The shell is open equipped with partial circulating, and first valve plate and second valve plate are respectively used to control described big The opening and closing of circulation openings and partial circulating opening.

Further, the temperature module includes the temperature sensor equipped with wax chamber, and the wax intracavitary set on the wax；It is described to push away It is intracavitary that the other end of bar protrudes into the wax.

Further, be equipped with sebific duct in the temperature sensor, the push rod protrude into the intracavitary one end of the wax be wrapped in it is described In sebific duct.

Further, it is equipped with the first elastic component being sheathed on outside the temperature sensor in the bracket, makes first valve plate The systemic circulation opening can be closed.

Further, the shell is equipped with water inlet, and the bracket, which is equipped with, is connected to systemic circulation opening and described The perforating of water inlet, one end of the temperature sensor pass through the perforating and are connected to second valve plate.

Further, gap is equipped between the perforating and the temperature sensor.

Further, the both ends of first elastic component press on the rack inner wall and first valve plate respectively.

Further, the temperature sensor is hierarchic structure, is set between the cascaded surface of the temperature sensor and second valve plate There is the second elastic component.

Further, one end of the temperature sensor is equipped with locating part, and second valve plate is located in the locating part and institute It states between the second elastic component.

Further, first valve plate and the temperature sensor are interference fitted.

Further, second valve plate and the temperature sensor are interference fitted.

The utility model has the beneficial effects that the utility model is by being arranged ball head structure in one end of push rod, and by bulb Structure and bracket ball-joint, ball head structure are not easy to be detached from bracket；And ball head structure can be relative to holder pivots, in external force Effect lower push-rod can occur to deflect by a small margin, and push rod can restore vertical state under self gravitation effect, solve existing push away Bar can not restore the problem of vertical state then causes push rod easily to be deviate from from bracket due to the deflection under water impact.

Detailed description of the invention

Fig. 1 is the installation diagram of thermostat described in the utility model；

Fig. 2 is the cross-sectional view of Fig. 1；

Fig. 3 is the installation diagram of thermostat described in the utility model (not with shell)；

Fig. 4 is the cross-sectional view of Fig. 3.

In figure:

1, shell；11, partial circulating is open；12, water inlet；

2, push rod；21, ball head structure；

3, bracket；30, systemic circulation is open；32, perforating；

41, temperature sensor；40, wax chamber；411, the first temperature sensor section；412, the second temperature sensor section；413, third temperature sensor section；

51, the first valve plate；52, the second valve plate；61, the first elastic component；62, the second elastic component.

Specific embodiment

The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer, Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.It is understood that Specific embodiment described herein is used only for explaining the utility model, rather than the restriction to the utility model.In addition it also needs It is noted that illustrating only part relevant to the utility model for ease of description, in attached drawing and not all.

As depicted in figs. 1 and 2, a kind of thermostat, including bracket 3 and push rod 2, one end of push rod 2 are present embodiments provided Equipped with ball head structure 21, ball head structure 21 and 3 ball-joint of bracket.Ball head structure 21 and the contact surface of bracket 3 are larger, relative to existing Having technology medial end portions is the push rod 2 of plane, and ball head structure 21 and the compactness of bracket are more preferable, is not easy ball head structure 21 and bracket 3 are detached from；And ball head structure 21 can be rotated relative to bracket 3, and push rod 2 can occur to deflect by a small margin under external force, push away Bar 2 can restore vertical state under self gravitation effect, and solving existing push rod 2 can not be extensive due to the deflection under water impact The problem of multiple vertical state then causes push rod 2 easily to be deviate from from bracket 3.

As shown in Fig. 2, above-mentioned thermostat further includes shell 1, the temperature module, the first valve plate 51, the second valve plate 52, the first bullet Property part 61 and the second elastic component 62.Wherein, 3 upper end of bracket is equipped with systemic circulation opening 30, and 1 lower end of shell is open equipped with partial circulating 11,1 side wall of shell is equipped with water inlet 12, and bracket 3 and shell 1 are tightly connected；The temperature module includes the temperature sensor equipped with wax chamber 40 41, the temperature module is sheathed on outside push rod 2 and can move axially relative to push rod 2, is arranged with first outside one end of the temperature module Valve plate 51, the other end passes through bracket 3, and the second valve plate 52 is connected to after protruding into shell 1.

As shown in Figure 3 and Figure 4, specifically, temperature sensor 41 be hierarchic structure comprising set gradually along axial direction and outer diameter according to The first temperature sensor section 411, the second temperature sensor section 412 and the third temperature sensor section 413 of secondary reduction, the first valve plate 51 are sheathed on second Temperature sensor section 412 is outer and presses on the cascaded surface that the first temperature sensor section 411 and the second temperature sensor section 412 are formed, and prevents the first valve Plate 51 is deviate from from temperature sensor 41；Second valve plate 52 is sheathed on outside third temperature sensor section 413, and third temperature sensor section 413 is close to sense One end of warm 41 end of body is equipped with locating part, for preventing the second valve plate 52 from deviating from from temperature sensor 41；Third temperature sensor section 413 It is arranged with the second elastic component 62 outside, the second elastic component 62 is in compressive state, and both ends press on the second temperature sensor section respectively 412 and third temperature sensor section 413 formed cascaded surface and the second valve plate 52 upper surface, then by locating part and second elasticity Part 62 carries out axial limiting to the second valve plate 52.Preferably, above-mentioned locating part is screw.

Wherein the first valve plate 51 and the second valve plate 52 respectively with the second temperature sensor section 412,413 interference of third temperature sensor section Cooperation, by the movement of the first valve plate 51 and the second valve plate 52, control systemic circulation opening 30 and partial circulating opening 11 are opened respectively It closes.Specifically, the lower end of bracket 3 is equipped with perforating 32, and the end of third temperature sensor section 413 passes through perforating 32 and is connected to the Two valve plates 52 are equipped with gap between perforating 32 and temperature sensor 41, for reduce 41 outer wall of temperature sensor and 32 inner wall of perforating it Between friction.

The temperature module further includes the wax (not shown) in wax chamber 40, and one end flexural pivot of push rod 2 is connected to bracket 3, The other end protrudes into wax chamber 40, and temperature sensor 41 can be moved axially relative to push rod 2.Since 3 lower part of bracket is designed for open type, Part temperature sensor 41 is totally submerged in water, can perceive the variation of water temperature in time, and temperature sensor 41 and water carry out heat exchange, feeling During the temperature of warm body 41 gradually rises, the solid wax in wax chamber 40 will gradually melt, and gradually become liquid by solid, During being somebody's turn to do, the volume of wax, which is gradually increased, moves down temperature sensor 41, and the first valve plate 51 progressively disengages systemic circulation opening 30, greatly Circulation openings 30 are gradually opened, and the second valve plate 52 is gradually moved to partial circulating mouth, and the wax in wax chamber 40 becomes liquid completely When body, systemic circulation opening 30 is in the open state, and the second valve plate 52 completely closes partial circulating opening 11.

It is equipped with the first elastic component 61 being sheathed on outside temperature sensor 41 in bracket 3, the first valve plate 51 is enable to close systemic circulation Opening 30, the first elastic component 61 are in compressive state always, and both ends press on the inner wall of the first valve plate 51 and bracket 3 respectively. The first elastic component 61 is compressed further during temperature sensor 41 moves downward.Preferably, above-mentioned first elastic component 61 It is spring with the second elastic component 62.

During temperature gradually decreases, the liquid wax in wax chamber 40 will be gradually become solid, the volume of wax by liquid It is gradually reduced, is gradually reduced the power for acting on temperature sensor 41 also, restoring force provided by the first elastic component 61 will drive temperature-sensitive Body 41 moves up, and the second valve plate 52 is made to be gradually distance from partial circulating opening 11, and the first valve plate 51 moves closer to systemic circulation opening 30, 3 inner wall of bracket is equipped with step surface, and when the wax in wax chamber 40 becomes solid completely, the first valve plate 51 acts on above-mentioned step surface simultaneously Systemic circulation opening 30 is completely closed, partial circulating opening 11 fully opens, and water flow is entered in shell 1 by water inlet 12, then Pass through 11 outflow of partial circulating opening.

Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in Within the protection scope of the utility model claims.

Claims (10)

1. a kind of thermostat characterized by comprising

Push rod (2), one end are equipped with ball head structure (21), and the ball head structure (21) is articulated with bracket (3)；

Shell (1), one end are connected to the bracket (3), and the bracket (3) is equipped with systemic circulation opening (30)；

The temperature module, one end is sheathed on the push rod (2) outside and can move axially relative to the push rod (2), another End is pierced by the bracket (3) and protrudes into the shell (1)；And

First valve plate (51), the second valve plate (52), one end of the temperature module are connected to first valve plate (51), the other end It is connected to second valve plate (52)；

The shell (1) is equipped with partial circulating opening (11), and first valve plate (51) and second valve plate (52) are used respectively In the opening and closing for controlling the systemic circulation opening (30) and partial circulating opening (11).

2. thermostat according to claim 1, which is characterized in that the temperature module includes the temperature-sensitive equipped with wax chamber (40) Body (41) and the wax being set in the wax chamber (40)；The other end of the push rod (2) protrudes into the wax chamber (40).

3. thermostat according to claim 2, which is characterized in that be equipped in the bracket (3) and be sheathed on the temperature sensor (41) the first elastic component (61) outside makes first valve plate (51) that can close the systemic circulation opening (30).

4. thermostat according to claim 3, which is characterized in that the shell (1) is equipped with water inlet (12), the branch Frame (3) is equipped with perforating (32), and one end of the temperature sensor (41) passes through the perforating (32) and is connected to described second Valve plate (52).

5. thermostat according to claim 4, which is characterized in that between the perforating (32) and the temperature sensor (41) Equipped with gap.

6. thermostat according to claim 3, which is characterized in that the both ends of first elastic component (61) press on respectively Bracket (3) inner wall and first valve plate (51).

7. thermostat according to any one of claims 2 to 6, which is characterized in that the temperature sensor (41) is hierarchic structure, institute It states and is equipped with the second elastic component (62) between the cascaded surface of temperature sensor (41) and second valve plate (52).

8. thermostat according to claim 7, which is characterized in that one end of the temperature sensor (41) is equipped with locating part, institute The second valve plate (52) is stated to be located between the locating part and second elastic component (62).

9. thermostat according to any one of claims 2 to 6, which is characterized in that first valve plate (51) and the temperature-sensitive Body (41) interference fit.

10. thermostat according to any one of claims 2 to 6, which is characterized in that and second valve plate (52) and the sense Warm body (41) interference fit.