Locomotive temperature control element

Abstract

The utility model relates to the technical field of locomotive temperature control, in particular to a locomotive temperature control element, which comprises a base, a support, a return spring and a thermostat main body, the bottom of the base is fixedly connected with the support, the return spring is movably mounted in the support, the thermostat main body is arranged in the return spring in a penetrating manner, the thermostat main body comprises a temperature sensing shell, and the temperature sensing shell is fixedly connected with the support. The wax type thermostat valve comprises a temperature sensing shell, a valve is arranged at the top end of the outer surface of the temperature sensing shell in a sleeved mode, an expansion pipe is installed in the temperature sensing shell in an embedded mode, the expansion pipe is formed by combining a main pipe body and a sealing gasket, a lifting pin is installed in the main pipe body in an inserted mode, and an effect of pushing the lifting pin is achieved by improving an existing wax type thermostat valve and optimizing the design of the expansion pipe. Meanwhile, a good sealing effect can be achieved, and leakage of the expanding agent is effectively prevented, so that the performance of the thermostat valve is improved, the service life of the thermostat valve is prolonged, and locomotive engine faults caused by leakage of the expanding agent are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of locomotive temperature control, and particularly relates to a locomotive temperature control element. Background Technique

[0002] After the traditional wax thermostat valve is used for a period of time, the expander may leak out from the joints between the axle pin seat and the expansion pad and the axle pin, resulting in the performance attenuation of the thermostat valve. This kind of leakage not only affects the normal operation of the thermostat valve, but also shortens its service life. In addition, the too small opening height of the thermostat valve will also cause the water circulation to be blocked, which is a manifestation of performance defects. These problems may lead to too high temperature of the motorcycle water-cooled engine, and then cause a series of problems, such as piston ring seizure, cylinder head gasket burnout, combustion chamber gas entering the water circulation system, etc. From this, it can be seen the importance of the sealing performance of the wax thermostat valve for the locomotive engine.

[0003] Therefore, for the improvement of the existing wax thermostat valve, it is particularly important to design a locomotive temperature control element to solve the above technical defects and improve the sealing performance. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a locomotive temperature control element. The locomotive temperature control element improves the existing wax thermostat valve, optimizes the design of the expansion tube, plays a role in pushing the top pin, and at the same time can play a good sealing role, effectively preventing the leakage of the expander, thereby improving the performance and service life of the thermostat valve, and avoiding locomotive engine failures caused by the leakage of the expander, so as to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A locomotive temperature control element, comprising a base, a bracket, a return spring and a thermostat main body. The bottom of the base is fixedly connected with the bracket. A return spring is movably installed inside the bracket. The thermostat main body penetrates through the inside of the return spring. The thermostat main body includes a temperature-sensing housing. A valve is sleeved on the top end of the outer surface of the temperature-sensing housing. An expansion tube is embedded inside the temperature-sensing housing. The expansion tube is composed of a main tube body and a sealing pad. A top pin is inserted into the inside of the main tube body.

[0007] As a preferred scheme of the utility model, the sealing pad is located on the outer surface of the main tube body near the opening, and the main tube body and the sealing pad are integrally processed.

[0008] As a preferred embodiment of the present utility model, an expansion agent chamber is provided inside the temperature sensing housing. A sealing seat is fixedly installed at the top end of the temperature sensing housing. A sealing cover is fixedly installed on the inner top surface of the sealing seat. The main body and the sealing gasket are respectively located inside the expansion agent chamber and the sealing seat.

[0009] As a preferred embodiment of the present utility model, the outer surface of the sealing seat is fixedly connected to the outer surface of the valve. An anti - detachment notch is provided at the center of the top surface of the sealing seat. A sealing cavity is provided at the bottom of the sealing seat near the anti - detachment notch. The diameter of the sealing cavity is larger than the diameter of the anti - detachment notch.

[0010] As a preferred embodiment of the present utility model, a top pin insertion hole is provided through the center of the sealing cover. One end of the top pin away from the expansion tube passes through the inside of the top pin insertion hole and extends to the inner wall of the base.

[0011] As a preferred embodiment of the present utility model, the return spring is located on the outer surface of the temperature sensing housing. The valve is located at one end of the return spring close to the base.

[0012] As a preferred embodiment of the present utility model, a top seat adapted to the top pin is fixedly installed at one end of the base away from the bracket. A first coolant channel is provided on the outer surface of the base. A coolant sealing ring is sleeved on the outer surface of the base near the connection with the bracket.

[0013] As a preferred embodiment of the present utility model, a temperature sensing housing hole is provided through the center of one end surface of the bracket away from the base. One end of the temperature sensing housing away from the base passes through the inside of the temperature sensing housing hole. A second coolant channel is provided on the outer surface of the bracket.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] In the present utility model, by improving the existing wax - type thermostat valve and optimizing the design of the expansion tube, it plays a role in pushing the top pin. At the same time, it can play a good sealing role, effectively preventing the leakage of the expansion agent, thereby improving the performance and service life of the thermostat valve and avoiding locomotive engine failures caused by the leakage of the expansion agent, so as to solve the problems raised in the above - mentioned background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three - dimensional structure schematic diagram of the overall assembly in the present utility model;

[0017] Figure 2 It is a three - dimensional structure schematic diagram of the overall expansion in the present utility model;

[0018] Figure 3 It is a three - dimensional structure schematic diagram of the disassembly of the thermostat main body in the present utility model;

[0019] Figure 4 Schematic diagram of the three-dimensional enlarged structure of the temperature-sensitive housing in the present utility model;

[0020] Figure 5 Schematic diagram of the three-dimensional enlarged structure of the expansion tube in the present utility model.

[0021] In the figure: 1. Base; 11. Top seat; 12. First coolant channel; 13. Coolant sealing ring; 2. Bracket; 21. Temperature-sensitive housing hole; 22. Second coolant channel; 3. Return spring; 4. Thermostat body; 41. Temperature-sensitive housing; 411. Expansion agent chamber; 412. Sealing seat; 4121. Anti-disengagement notch; 4122. Sealing cavity; 413. Sealing cover; 4131. Top pin jack; 42. Valve; 43. Expansion tube; 431. Main body; 432. Sealing gasket seat; 44. Top pin. Specific embodiments

[0022] Next, in combination with the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] Embodiment:

[0024] The embodiment of the present utility model provides a locomotive temperature control element. This locomotive temperature control element improves the existing wax-type thermostat valve and optimizes the design of the expansion tube, which plays a role in pushing the top pin. At the same time, it can play a good sealing role, effectively preventing the leakage of the expansion agent, thereby improving the performance and service life of the thermostat valve and avoiding locomotive engine failures caused by the leakage of the expansion agent, so as to solve the problems proposed in the above background technology.

[0025] Please refer to Figures 1-5 , the present utility model provides a technical solution:

[0026] A locomotive temperature control element includes a base 1, a bracket 2, a return spring 3 and a thermostat body 4. The bottom of the base 1 is fixedly connected to the bracket 2. The return spring 3 is movably installed inside the bracket 2, and the thermostat body 4 penetrates through the return spring 3.

[0027] Among them, the thermostat body 4 includes a temperature-sensitive housing 41. The return spring 3 is located on the outer surface of the temperature-sensitive housing 41. An expansion agent cavity 411 is provided inside the temperature-sensitive housing 41. A sealing seat 412 is fixedly installed at the top of the temperature-sensitive housing 41. An anti-disengagement notch 4121 is provided at the center of the top surface of the sealing seat 412. A sealing cavity 4122 is provided inside the sealing seat 412 near the bottom of the anti-disengagement notch 4121. The diameter of the sealing cavity 4122 is larger than that of the anti-disengagement notch 4121. A sealing cover 413 is fixedly installed on the inner top surface of the sealing seat 412. A top pin insertion hole 4131 is penetrated through the center of the sealing cover 413. A valve 42 is sleeved on the outer surface at the top end of the temperature-sensitive housing 41. The valve 42 is located at one end of the return spring 3 close to the base 1. The outer surface of the sealing seat 412 is fixedly connected to the outer surface of the valve 42. An expansion tube 43 is embedded and installed inside the temperature-sensitive housing 41. The expansion tube 43 is composed of a main tube body 431 and a sealing gasket 432. The main tube body 431 and the sealing gasket 432 are respectively located inside the expansion agent cavity 411 and the sealing seat 412. The sealing gasket 432 is located on the outer surface of the main tube body 431 near the opening. The main tube body 431 and the sealing gasket 432 are integrally processed. A top pin 44 is inserted into the main tube body 431. And one end of the top pin 44 away from the expansion tube 43 passes through the inside of the top pin insertion hole 4131 and extends to the inner wall of the base 1. When the temperature rises, the solid paraffin located inside the expansion agent cavity 411 starts to melt and expand, squeezes the expansion tube 43 through the expansion tension, and transmits it to the top pin 44. Since the base 1 and the bracket 2 are fixedly connected, at this time, the thermostat body 4 moves towards the bracket 2 under the action of the reaction force, and at the same time, the return spring 3 is compressed. At this time, the valve 42 is disengaged from the inner wall of the base 1 and opens, realizing the circulation of the coolant. On the contrary, under the reaction of the return spring 3, it automatically resets and closes, and by controlling the flow path of the coolant, the temperature of the locomotive engine is adjusted. The improved thermostat body 4 plays a role in pushing the top pin 44, and at the same time can play a good sealing role, effectively preventing the leakage of the expansion agent, thereby improving the performance and service life of the thermostat valve, avoiding locomotive engine failures caused by the leakage of the expansion agent. At the same time, the force transmission link of the improved thermostat body 4 is simple, has higher sensitivity, and is reliable.

[0028] In addition, in this embodiment, please refer to Figure 2 , a top seat 11 adapted to the top pin 44 is fixedly installed at one end of the base 1 away from the bracket 2. A first coolant passage 12 is provided on the outer surface of the base 1. A coolant sealing ring 13 is sleeved on the outer surface of the base 1 near the connection with the bracket 2. And the top seat 11 provided can limit the top pin 44 to ensure a more stable reaction force. At the same time, the coolant sealing ring 13 provided can prevent the coolant in the locomotive engine cooling system from leaking when it is completely closed.

[0029] In addition, in this embodiment, please refer to Figure 2, a temperature sensing shell hole 21 is penetrated and opened at the center of the end face of the inner part of the bracket 2 far away from the base 1. One end of the temperature sensing shell 41 far away from the base 1 passes through the inside of the temperature sensing shell hole 21. A second coolant channel 22 is arranged on the outer surface of the bracket 2. And the temperature sensing shell hole 21 can effectively avoid obstructing the temperature sensing shell 41 during the reverse thrust process, ensuring the smooth opening of the valve 42.

[0030] In this embodiment, the implementation scenario is specifically as follows: when the temperature of the locomotive engine rises, the solid paraffin in the expansion agent cavity 411 starts to melt and expand, squeezes the expansion tube 43 through the expansion tension, and transmits it to the top pin 44. Since the base 1 and the bracket 2 are fixedly connected, at this time, the thermostat body 4 moves towards the bracket 2 under the action of the reverse thrust, and at the same time, the return spring 3 is compressed. At this time, the valve 42 is separated from the inner wall of the base 1 and opened. At this time, the coolant circulates through the first coolant channel 12 and the second coolant channel 22. On the contrary, under the reaction of the return spring 3, it automatically resets and closes, and by controlling the flow path of the coolant, the temperature of the locomotive engine is adjusted. At the same time, the whole can play a good sealing role, effectively preventing the leakage of the expansion agent, thereby improving the performance and service life of the thermostat valve.

[0031] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locomotive temperature control element, comprising a base (1), a bracket (2), a return spring (3) and a thermostat body (4), characterized in that: A bracket (2) is fixedly connected to the bottom of the base (1). A return spring (3) is movably installed inside the bracket (2). A thermostat body (4) is disposed through the inside of the return spring (3). The thermostat body (4) includes a temperature-sensing housing (41). A valve (42) is sleeved on the top end of the outer surface of the temperature-sensing housing (41). An expansion tube (43) is embedded inside the temperature-sensing housing (41). The expansion tube (43) is composed of a main tube body (431) and a sealing gasket (432). A top pin (44) is inserted into the inside of the main tube body (431).

2. The locomotive temperature control element according to claim 1, characterized in that: The sealing gasket (432) is located on the outer surface of the main tube body (431) near the opening. The main tube body (431) and the sealing gasket (432) are integrally formed by machining.

3. The locomotive temperature control element according to claim 1, wherein: An expansion agent chamber (411) is formed inside the temperature-sensing housing (41). A sealing seat (412) is fixedly installed at the top end of the temperature-sensing housing (41). A sealing cover (413) is fixedly installed on the inner top surface of the sealing seat (412). The main tube body (431) and the sealing gasket (432) are respectively located inside the expansion agent chamber (411) and the sealing seat (412).

4. The locomotive temperature control element according to claim 3, wherein: The outer surface of the sealing seat (412) is fixedly connected to the outer surface of the valve (42). An anti-disengagement notch (4121) is formed at the center of the top surface of the sealing seat (412). A sealing cavity (4122) is formed at the bottom of the sealing seat (412) near the anti-disengagement notch (4121). The diameter of the sealing cavity (4122) is larger than that of the anti-disengagement notch (4121).

5. The locomotive temperature control element according to claim 3, characterized in that: A top pin insertion hole (4131) is formed through the center of the sealing cover (413). One end of the top pin (44) away from the expansion tube (43) passes through the inside of the top pin insertion hole (4131) and extends to the inner wall of the base (1).

6. The locomotive temperature control element according to claim 1, characterized in that: The return spring (3) is located on the outer surface of the temperature-sensing housing (41). The valve (42) is located at one end of the return spring (3) close to the base (1).

7. The locomotive temperature control element according to claim 1, characterized in that: A top seat (11) adapted to the top pin (44) is fixedly installed at one end of the base (1) away from the bracket (2). A first coolant channel (12) is formed on the outer surface of the base (1). A coolant sealing ring (13) is sleeved on the outer surface of the base (1) near the connection with the bracket (2).

8. A locomotive temperature control element according to claim 1, characterized in that: A temperature-sensing housing hole (21) is formed through the center of the end surface of the bracket (2) away from the base (1). One end of the temperature-sensing housing (41) away from the base (1) passes through the inside of the temperature-sensing housing hole (21). A second coolant channel (22) is formed on the outer surface of the bracket (2).

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