Downstream valve for easy cleaning and inspection
Patent Information
- Application Number
- CN202522096390.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-09-29
AI Technical Summary
[0002]在搅拌釜等容器的出料口一般会设置放料阀以控制出料口的开闭，放料时阀杆带动阀芯移动，从而打开阀门，物料进入阀体内然后排出，物料进入阀体内后会有一部分落入阀杆与阀杆座之间的间隙中，清洁极不方便
[0003]本实用新型的目的是提供一种方便清理和检测的放料下展阀。
Smart Images
Figure CN224786512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a discharge valve, and in particular to a discharge discharge valve that is easy to clean and inspect. Background Technology
[0002] A discharge valve is usually installed at the discharge port of containers such as mixing tanks to control the opening and closing of the discharge port. When discharging, the valve stem drives the valve core to move, thereby opening the valve. The material enters the valve body and then is discharged. After entering the valve body, some of the material falls into the gap between the valve stem and the valve stem seat, which is extremely inconvenient to clean. Summary of the Invention
[0003] The purpose of this invention is to provide a discharge valve that is easy to clean and inspect.
[0004] The technical solution to achieve the purpose of this utility model is as follows:
[0005] A discharge valve for easy cleaning and inspection includes a valve seat, a valve body, a valve core, and a valve stem. The valve body has a discharge channel. A sealing element is fixed between the valve seat and the valve body. The valve core abuts against the sealing element. The valve body has a valve stem seat with a valve stem hole that communicates with the discharge channel. The valve stem extends through the valve stem hole from bottom to top, with its upper end extending into the discharge channel and fixedly connected to the valve core. The valve stem hole includes a sealing section and a gap section from bottom to top. A sealing ring is provided at the sealing section, and a gap exists between the inner wall of the valve stem seat and the valve stem at the gap section. The valve stem seat is provided with an air inlet pipe, and the air inlet pipe is provided with an air blowing hole that communicates with the gap section of the valve stem hole. The outer end of the air blowing hole is provided with a connecting part, which is a hollow frustum shape. The outer diameter of the connecting part gradually decreases from the end near the air blowing hole to the end of the original air blowing hole. A connecting pipe is fitted onto the air inlet pipe and is threaded to the outer surface of the air inlet pipe. The connecting pipe includes a connecting part and a crimping part. The inner wall of the connecting part is provided with an internal thread that is threaded to the outer surface of the air blowing hole. The crimping part is provided with a crimping surface that matches the outer surface of the connecting part.
[0006] With the above structure, after the material is discharged, the air blowing pipe is fitted onto the connecting part, and then the connecting pipe is threaded to the air inlet pipe. After the connecting pipe is tightened, the crimping part presses the air blowing pipe onto the outer surface of the connecting part, realizing the quick assembly of the air blowing pipe. Then, the air blowing pipe blows air into the valve stem seat, blowing out the material in the gap between the valve stem and the valve stem seat, making cleaning convenient and quick. At the same time, after the discharge port of the valve is closed, the sealing element between the valve core, the valve seat, and the valve body abuts. By blowing air through the air blowing pipe, the sealing performance between the valve core and the sealing element can be detected. When the valve core wears down after long-term operation, resulting in a deterioration in the sealing performance between the valve core and the sealing element, it can be detected in time. This utility model is easy to clean and can detect the sealing performance of the valve.
[0007] Preferably, in order to prevent material from being discharged from the gap section and the air blowing hole when air is not being blown, a sealing block is provided in the air blowing hole and is threadedly connected to the inner wall of the air blowing hole. One end of the sealing block is threadedly connected to the air blowing hole, and the other end extends to the outside of the connection part.
[0008] Preferably, to facilitate the connection between the air blowing pipe and the air inlet pipe, the angle between the outer surface of the connecting part of the air blowing hole and the axis of the air blowing hole is 5°-15°. Attached Figure Description
[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a schematic diagram of the connecting pipe structure of this utility model. Detailed Implementation
[0012] like Figure 1 and Figure 2 As shown, the present invention provides a convenient and easy-to-clean discharge valve comprising a valve seat 1, a valve body 2, a valve core 3, and a valve stem 4. The valve body has a discharge channel 5. A sealing element 6 is fixed between the valve seat and the valve body. The valve core abuts against the sealing element. The valve body has a valve stem seat 7, which has a valve stem hole 8 communicating with the discharge channel. The valve stem extends from bottom to top through the valve stem hole, with its upper end extending into the discharge channel and fixedly connected to the valve core. The valve stem hole includes a sealing section and a gap section from bottom to top. A sealing ring 10 is provided at the sealing section, and a gap exists between the inner wall of the valve stem seat and the valve stem at the gap section. 11. The valve stem seat is provided with an air inlet pipe 12. The air inlet pipe is provided with an air blowing hole 13 that communicates with the gap section of the valve stem hole. The outer end of the air blowing hole is provided with a connecting part 15. The connecting part is in the shape of a hollow frustum. The outer diameter of the connecting part gradually decreases in the direction from the end near the air blowing hole to the end of the original air blowing hole. A connecting pipe 16 is fitted on the air inlet pipe and is threadedly connected to the outer surface of the air inlet pipe. The connecting pipe includes a connecting part 17 and a crimping part 18. The inner wall of the connecting part is provided with an internal thread that is threadedly connected to the outer surface of the air blowing hole. The crimping part is provided with a crimping surface 19 that matches the outer surface of the connecting part.
[0013] In some embodiments, such as Figure 1 As shown, a sealing block 20 is provided inside the air blowing hole and is threadedly connected to the inner wall of the air blowing hole. One end of the sealing block is threadedly connected to the air blowing hole, and the other end extends to the outside of the connection part.
[0014] In some embodiments, the angle between the outer surface of the connecting portion of the air hole and the axis of the air hole is 5°-15°.
[0015] With the above structure, after the material is discharged, the air blowing pipe is fitted onto the connecting part, and then the connecting pipe is threaded to the air inlet pipe. After the connecting pipe is tightened, the crimping part presses the air blowing pipe onto the outer surface of the connecting part, realizing the quick assembly of the air blowing pipe. Then, the air blowing pipe blows air into the valve stem seat, blowing out the material in the gap between the valve stem and the valve stem seat, making cleaning convenient and quick. At the same time, after the discharge port of the valve is closed, the sealing element between the valve core, the valve seat, and the valve body abuts. By blowing air through the air blowing pipe, the sealing performance between the valve core and the sealing element can be detected. When the valve core wears down after long-term operation, resulting in a deterioration in the sealing performance between the valve core and the sealing element, it can be detected in time. This utility model is easy to clean and can detect the sealing performance of the valve.
[0016] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.
Claims
1. A discharge valve for easy cleaning and inspection, comprising a valve seat, valve body, valve core, and valve stem, characterized in that: The valve body has a feeding channel. A sealing element is fixed between the valve seat and the valve body. The valve core abuts against the sealing element. The valve body has a valve stem seat with a valve stem hole that communicates with the feeding channel. The valve stem passes through the valve stem hole from bottom to top, and its upper end extends into the feeding channel and is fixedly connected to the valve core. The valve stem hole includes a sealing section and a gap section from bottom to top. A sealing ring is provided at the sealing section, and a gap exists between the inner wall of the valve stem seat and the valve stem at the gap section. The valve stem seat is provided with an air inlet pipe. The intake pipe is provided with an air blowing hole that communicates with the gap section of the valve stem hole. The outer end of the air blowing hole is provided with a connecting part. The connecting part is hollow and frustum-shaped. The outer diameter of the connecting part gradually decreases from the end near the air blowing hole to the end of the original air blowing hole. A connecting pipe is fitted on the intake pipe and threadedly connected to the outer surface of the intake pipe. The connecting pipe includes a connecting part and a crimping part. The inner wall of the connecting part is provided with an internal thread that is threadedly connected to the outer surface of the air blowing hole. The crimping part is provided with a crimping surface that matches the outer surface of the connecting part.
2. The discharge valve for easy cleaning and inspection according to claim 1, characterized in that: The air blowing hole is provided with a sealing block that is threadedly connected to the inner wall of the air blowing hole. One end of the sealing block is threadedly connected to the air blowing hole, and the other end extends to the outside of the connection part.
3. The discharge valve for easy cleaning and inspection according to claim 1, characterized in that: The angle between the outer surface of the connecting part of the air hole and the axis of the air hole is 5°-15°.