CN212899936U - Safety valve of simulation train model - Google Patents
Safety valve of simulation train model Download PDFInfo
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- CN212899936U CN212899936U CN202021283399.6U CN202021283399U CN212899936U CN 212899936 U CN212899936 U CN 212899936U CN 202021283399 U CN202021283399 U CN 202021283399U CN 212899936 U CN212899936 U CN 212899936U
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Abstract
The utility model discloses a relief valve of emulation train model, its technical scheme main points are: the valve comprises a valve body, wherein an air inlet is formed in the lower end of the interior of the valve body, a first cavity is formed in the interior of the valve body at a position corresponding to the upper end of the air inlet, a second cavity is formed in the interior of the valve body at a position corresponding to the upper end of the first cavity, a steel ball is placed in the first cavity, a valve core is arranged at the upper end of the steel ball, the valve core is arranged in the valve body in a sliding manner, a spring is sleeved at the outer end of the valve core, a first arc-shaped groove is formed in the interior of the valve body at a position corresponding to the lap joint of the steel ball and the air inlet, a second arc-shaped groove is formed in the lower end of the valve; the utility model provides a be difficult to in the model train design the same relief valve come the sound that the reduction steam train sent and the problem that the steel ball easily weared and teared in the current relief valve.
Description
Technical Field
The utility model belongs to the technical field of the relief valve technique and specifically relates to a relief valve of emulation train model.
Background
When the pressure in the boiler of the steam train reaches the critical point of the safety pressure of the boiler, the safety valve can continuously jump with the sound of 'sudden and abrupt', the pressure of the boiler continuously rises, and the safety valve starts to jump all the time with sharp sound. .
Because the structure of the safety valve in the real train is complex, the same safety valve is difficult to process in the simulation train model, and if the safety valve on the model train boiler can also make similar sound when in take-off, a new design is needed for realization; meanwhile, the steel ball inside the existing safety valve can be abraded after being used for a long time, so that a gap is formed at the joint of the steel ball and the air inlet, and the normal use of the safety valve is influenced.
SUMMERY OF THE UTILITY MODEL
To the problem mentioned in the background art, the utility model aims at providing a relief valve of emulation train model to it is difficult to design the same relief valve in the model train and reduces the easy wearing and tearing problem of steel ball in the sound that the steam train sent and the current relief valve to solve to mention in the background art.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a safety valve of a simulated train model comprises a valve body, wherein an air inlet is formed in the lower end of the inside of the valve body, a first cavity is formed in the inside of the valve body at a position corresponding to the upper end of the air inlet, a second cavity is formed in the inside of the valve body at a position corresponding to the upper end of the first cavity, a steel ball is placed in the first cavity, a valve core is arranged at the upper end of the steel ball and is arranged in the valve body in a sliding mode, a spring is sleeved at the outer end of the valve core, a first arc-shaped groove is formed in the inside of the valve body at a position corresponding to the lap joint of the steel ball and the air inlet, a second arc-shaped groove is formed in the lower end of the valve core at a position corresponding to the connection position of the steel ball, and a rubber pad is fixedly arranged at.
Further, the diameter of the air inlet is larger than the difference between the diameter of the first cavity and the diameter of the steel ball, and the diameter of the air inlet is smaller than the difference between the diameter of the second cavity and the diameter of the steel ball.
By adopting the technical scheme, the actual sectional area of the first cavity in the valve body is smaller than the sectional area of the air inlet, and the actual sectional area of the second cavity is larger than the sectional area of the air inlet, so that the steel ball can be ensured to continuously lift in the valve body after the boiler is started.
Furthermore, the curvature radius of the first arc-shaped groove and the curvature radius of the second arc-shaped groove are the same as the radius of the steel ball.
By adopting the technical scheme, when the steel ball is matched and connected with the first arc-shaped groove and the second arc-shaped groove, the force applied to each part of the outer end of the steel ball is uniform.
Furthermore, an adjuster is movably arranged at the upper end of the inside of the valve body, and the valve core is arranged inside the valve body in a sliding mode through the adjuster.
Through adopting above-mentioned technical scheme, through setting up the regulator, can adjust the elasticity of spring through the control regulator to the inflow of the inside steam of control valve body.
Furthermore, a through hole is formed in the middle of the regulator, the diameter of the through hole is larger than that of the valve core, and an adjusting opening is formed in the outer end of the regulator.
Through adopting above-mentioned technical scheme, be favorable to the case in the inside lift of valve body, set up the regulation mouth and be favorable to operating personnel to control the regulator through controlling the regulation mouth.
Further, the lower extreme fixedly connected with boiler of valve body, the boiler with be provided with the sealing washer between the valve body fixedly.
Through adopting above-mentioned technical scheme, can improve the leakproofness between boiler and the valve body.
To sum up, the utility model discloses mainly have following beneficial effect:
1. the utility model discloses a, set up the air inlet through the inside at the valve body, first cavity, the second cavity, the diameter of air inlet is less than the diameter of second cavity and the difference of the diameter of steel ball, after boiler work, the steam pressure of air inlet lower extreme is greater than the inside steam pressure of first cavity this moment, the steel ball is by the inside of steam jack-up to the second cavity, because the diameter of air inlet is less than the difference of the diameter of second cavity and the diameter of steel ball, and the spring receives the compression, the spring can drive the case and drive the inside that the steel ball pushed down to first cavity, above-mentioned step is constantly repeated to the steel ball in the inside of valve body afterwards, the model train can send the sound similar with real train.
2. The utility model discloses a, through having seted up first arc recess in the inside of valve body, second arc recess has been seted up to the lower extreme of case, and first arc recess is provided with the rubber pad with the outer end of second arc recess is fixed, when the steel ball when the inside of valve body is constantly beated, is receiving the effect of rubber pad buffer force, can avoid the steel ball to receive wearing and tearing to the normal use of relief valve has been guaranteed.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a main sectional view of the present invention;
FIG. 2 is a schematic structural view of the valve body of the present invention;
FIG. 3 is a schematic structural view of the valve cartridge of the present invention;
fig. 4 is a schematic structural diagram of the regulator of the present invention.
In the figure: 1. a valve body; 101. a first arc-shaped groove; 2. an air inlet; 3. a first cavity; 4. a second cavity; 5. a steel ball; 6. a valve core; 601. a second arc-shaped groove; 7. a spring; 8. a regulator; 801. a through hole; 802. an adjustment port; 9. a boiler; 10. a seal ring; 11. and (7) a rubber pad.
Detailed Description
In order to make the objects and technical solutions of the present invention clear and fully described, and the advantages thereof more clearly understood, the embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1-3, a safety valve of a simulated train model comprises a valve body 1, an air inlet 2 is arranged at the lower end of the inside of the valve body 1, a first cavity 3 is arranged at the position corresponding to the upper end of the air inlet 2 inside the valve body 1, a second cavity 4 is arranged at the position corresponding to the upper end of the first cavity 3 inside the valve body 1, a steel ball 5 is placed inside the first cavity 3, a valve core 6 is arranged at the upper end of the steel ball 5, the valve core 6 is arranged inside the valve body 1 in a sliding manner, a spring 7 is sleeved at the outer end of the valve core 6, after a boiler 9 works, the steam pressure at the lower end of the air inlet 2 is greater than the steam pressure inside the first cavity 3, the steel ball 5 is jacked up to the inside of the second cavity 4 by the steam, because the diameter of the air inlet 2 is smaller than the difference between the diameter of the second cavity 4 and the diameter of the steel ball 5, and the spring, then the steel ball 5 will repeat the above steps in the valve body 1; the inside of valve body 1 has seted up first arc recess 101 corresponding to steel ball 5 and the lapped position department of air inlet 2, and the lower extreme of case 6 has seted up second arc recess 601 corresponding to the position department of being connected with steel ball 5, and the outer end of first arc recess 101 and second arc recess 601 is fixed and is provided with rubber pad 11, and rubber pad 11 can protect steel ball 5 not to receive wearing and tearing at the in-process of going up and down.
Referring to fig. 1 and 2, the diameter of the gas inlet 2 is greater than the difference between the diameter of the first cavity 3 and the diameter of the steel ball 5, the diameter of the gas inlet 2 is less than the difference between the diameter of the second cavity 4 and the diameter of the steel ball 5, specifically, the diameter of the gas inlet 2 is 2.2mm, the cross-sectional area is 3.8mm, the diameter of the first cavity 3 is 3.8mm, the diameter of the steel ball 5 is 3.17mm, the actual cross-sectional area of the first cavity 3 is 3.4mm, the cross-sectional area is less than that of the gas inlet 2, the diameter of the second cavity 4 is 4.4mm, the actual cross-sectional area of the second cavity 4 is 7.3mm, and the cross-sectional area is greater than that of the gas inlet.
Referring to fig. 1 to 3, the radius of curvature of the first arc-shaped groove 101 and the second arc-shaped groove 601 is the same as the radius of the steel ball 5, and the radius of curvature of the first arc-shaped groove 101 and the radius of curvature of the second arc-shaped groove 601 are both 1.1 mm.
Referring to fig. 1 and 4, a regulator 8 is movably disposed at the upper end of the interior of the valve body 1, and the valve core 6 is slidably disposed in the interior of the valve body 1 through the regulator 8.
Referring to fig. 1 and 4, a through hole 801 is formed in the middle of the regulator 8, the diameter of the through hole 801 is larger than that of the valve core 6, the valve core 6 can freely slide in the through hole 801, an adjusting opening 802 is formed in the outer end of the regulator 8, and the cross section of the adjusting opening 802 is rectangular.
Referring to fig. 2 and 3, a boiler 9 is fixedly connected to the lower end of the valve body 1, a seal ring 10 is fixedly arranged between the boiler 9 and the valve body 1, the seal ring 10 is made of nitrile rubber, the nitrile rubber has excellent oil resistance, high wear resistance, high heat resistance and high bonding force, and in addition, the nitrile rubber has good water resistance and air tightness, and the seal ring 10 made of the nitrile rubber has high sealing performance.
The utility model discloses when using, operating personnel starts the train model, boiler 9 works afterwards, when the steam pressure of 2 lower extremes of air inlet is greater than the inside steam pressure of first cavity 3, because the diameter of air inlet 2 is greater than the difference between the diameter of first cavity 3 and the diameter of steel ball 5, steel ball 5 is by the inside of steam jack-up to second cavity 4, because the diameter of air inlet 2 is less than the difference between the diameter of second cavity 4 and the diameter of steel ball 5, and spring 7 receives the compression, spring 7 can drive case 6 and drive steel ball 5 and push down to the inside of first cavity 3, above-mentioned step can constantly be repeated in the inside of valve body 1 to steel ball 5 afterwards, the model train can send the sound similar with real train.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A safety valve of a simulation train model comprises a valve body (1), and is characterized in that: the lower end of the interior of the valve body (1) is provided with an air inlet (2), the interior of the valve body (1) is provided with a first cavity (3) at a position corresponding to the upper end of the air inlet (2), the interior of the valve body (1) is provided with a second cavity (4) at a position corresponding to the upper end of the first cavity (3), a steel ball (5) is placed in the first cavity (3), the upper end of the steel ball (5) is provided with a valve core (6), the valve core (6) is slidably arranged in the interior of the valve body (1), the outer end of the valve core (6) is sleeved with a spring (7), the interior of the valve body (1) is provided with a first arc-shaped groove (101) at a position corresponding to the lap joint of the steel ball (5) and the air inlet (2), the lower end of the valve core (6) is provided with a second arc-shaped groove (601) at a position corresponding to the connection, the outer ends of the first arc-shaped groove (101) and the second arc-shaped groove (601) are fixedly provided with rubber pads (11).
2. The safety valve simulating a train model according to claim 1, wherein: the diameter of the air inlet (2) is larger than the difference between the diameter of the first cavity (3) and the diameter of the steel ball (5), and the diameter of the air inlet (2) is smaller than the difference between the diameter of the second cavity (4) and the diameter of the steel ball (5).
3. The safety valve simulating a train model according to claim 1, wherein: the curvature radius of the first arc-shaped groove (101) and the second arc-shaped groove (601) is the same as the radius of the steel ball (5).
4. The safety valve simulating a train model according to claim 1, wherein: the upper end of the interior of the valve body (1) is movably provided with a regulator (8), and the valve core (6) is arranged in the interior of the valve body (1) in a sliding manner through the regulator (8).
5. The safety valve simulating a train model according to claim 4, wherein: the middle part of the regulator (8) is provided with a through hole (801), the diameter of the through hole (801) is larger than that of the valve core (6), and the outer end of the regulator (8) is provided with a regulating port (802).
6. The safety valve simulating a train model according to claim 1, wherein: the lower extreme fixedly connected with boiler (9) of valve body (1), boiler (9) with fixed sealing washer (10) that are provided with between valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283399.6U CN212899936U (en) | 2020-07-04 | 2020-07-04 | Safety valve of simulation train model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283399.6U CN212899936U (en) | 2020-07-04 | 2020-07-04 | Safety valve of simulation train model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212899936U true CN212899936U (en) | 2021-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021283399.6U Active CN212899936U (en) | 2020-07-04 | 2020-07-04 | Safety valve of simulation train model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212899936U (en) |
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2020
- 2020-07-04 CN CN202021283399.6U patent/CN212899936U/en active Active
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