Steam control valve with cam groove

Abstract

The utility model discloses a steam control valve with a cam groove, which comprises a first valve body and a second valve body communicated with the first valve body, a plug is arranged in the first valve body, one end of the plug can plug an inlet of the first valve body, and the other end of the plug is connected with a second spring. The end, away from the first valve body, of the second spring abuts against the second valve body, a valve element is arranged at the end, away from the plug, of the first valve body in a penetrating mode, the end, close to the plug, of the valve element is sleeved with the first spring, the other end of the valve element is provided with a cam groove and sleeved with a sleeve, the sleeve is connected with a handle, and a pin is arranged on the sleeve in a penetrating mode. And one end of the pin extends into the cam groove. According to the utility model, mechanical transmission is completely adopted, so that the failure condition is well avoided, and the valve is effectively and reliably opened and closed. And the spring is only used as a power-assisted component, so that the lifting lever handle can be pulled up and down more smoothly.

Description

Technical Field

[0001] The utility model belongs to the technical field of control valves, and in particular relates to a steam control valve with a cam groove. Background Art

[0002] When the steam valves currently on the market are closed, they mainly rely on the spring to rebound, causing the valve core to slide backwards and hit the rubber pad to block the flow of air. However, the spring is an unstable part and is prone to failure. Once the spring cannot rebound, the valve cannot be closed, and the machine will malfunction. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, the technical solution adopted by the utility model is: a steam control valve with a cam groove, comprising a first valve body and a second valve body that can be connected to the first valve body, a plug is arranged in the first valve body, one end of the plug can block the inlet of the first valve body, and the other end is connected to a second spring, and the end of the second spring away from the first valve body is pressed against the second valve body, a valve core is passed through the end of the first valve body away from the plug, and the first spring is sleeved on the end of the valve core close to the plug, and a cam groove is opened on the other end and is sleeved with a sleeve, a handle is connected to the sleeve, a pin is passed through the sleeve, and one end of the pin extends into the cam groove.

[0005] Two ends of the first spring respectively abut against the valve core and the first valve body.

[0006] The side wall of the first valve body is connected with a steam pipe.

[0007] The plug is provided with a rubber pad. When the plug blocks the first valve body, the rubber pad is attached to the inlet of the first valve body.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the utility model is completely mechanically driven, which can well avoid the above-mentioned failure situation and effectively and reliably open and close the valve. The spring only serves as an auxiliary component, making the lever handle move up and down more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model;

[0010] Figure 2 It is a structural diagram of the valve core. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0012] On the contrary, the present application covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present application as defined by the claims. Further, in order to make the public have a better understanding of the present application, some specific details are described in detail in the detailed description of the present application below. Those skilled in the art can fully understand the present application without the description of these details.

[0013] See also Figure 1-2 A steam control valve with a cam groove comprises a first valve body 1 and a second valve body 2 which can be connected with the first valve body 1. A plug 3 is arranged in the first valve body 1. One end of the plug 3 can block the inlet of the first valve body 1, and the other end is connected with a second spring 4. The end of the second spring 4 away from the first valve body 1 presses against the second valve body 2. A valve core 5 is penetrated through the end of the first valve body 1 away from the plug 3. The end of the valve core 5 close to the plug 3 is sleeved with a first spring 6. The other end is provided with a cam groove 7 and sleeved with a sleeve 8. A handle 9 is connected to the sleeve 8. A pin 10 is penetrated through the sleeve 8. One end of the pin 10 extends into the cam groove 7. When the handle 9 is pressed down, the pin 10 moves along the cam groove 7, thereby driving the valve core 5 to move forward to push the plug open, so that the first valve body 1 is connected with the second valve body 2.

[0014] Two ends of the first spring 6 respectively abut against the valve core 5 and the first valve body 1 .

[0015] The side wall of the first valve body 1 is connected with a steam pipe 11 .

[0016] The plug 3 is provided with a rubber pad 12. When the plug 3 blocks the first valve body 1, the rubber pad 12 is attached to the inlet of the first valve body 1.

[0017] When the plug does not block the first valve body, steam enters the first valve body from the second valve body and then flows out from the steam pipe 11 .

[0018] The utility model is completely mechanically driven, and can open and close the valve effectively and reliably without error. Most valves on the market rely on the thrust of a spring to close the valve. If the spring fails, the valve cannot be closed.

Claims

1. A steam control valve with a cam groove, comprising a first valve body (1) and a second valve body (2) which can be connected to the first valve body (1), a plug (3) is arranged in the first valve body (1), one end of the plug (3) can block the inlet of the first valve body (1), and the other end is connected to a second spring (4), the end of the second spring (4) away from the first valve body (1) presses on the second valve body (2), and the end of the first valve body (1) away from the plug (3) is penetrated by a valve core (5), characterized in that: The valve core (5) has a first spring (6) sleeved on one end close to the plug (3), and a cam groove (7) and a sleeve (8) sleeved on the other end. The sleeve (8) is connected to a handle (9), and a pin (10) is passed through the sleeve (8). One end of the pin (10) extends into the cam groove (7).

2. A steam control valve with a cam groove as claimed in claim 1, characterized in that: The two ends of the first spring (6) respectively abut against the valve core (5) and the first valve body (1).

3. A steam control valve with a cam groove as claimed in claim 1, characterized in that: The side wall of the first valve body (1) is connected to a steam pipe (11).

4. A steam control valve with a cam groove as claimed in claim 1, characterized in that: A rubber pad (12) is provided on the plug (3).

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