A valve that is easy to clean

Abstract

The utility model relates to valve technical field, concretely is a valve convenient to clearance, including valve body, the guide hole of valve body top, the valve rod installed in the guide hole, the inner ring of guide hole is fixed with the protruding piece, the outer ring of valve rod is fixed with the support piece no.

Description

Technical Field

[0001] This utility model relates to the field of valves, specifically a valve that is easy to clean. Background Technology

[0002] Valves, as key devices for controlling fluid flow in industrial pipeline systems, are widely used in chemical, petroleum, power, and water supply industries. Their main function is to open, close, regulate, and distribute fluids, thereby ensuring the safety and stability of the system. A valve consists of a valve body, valve cover, valve stem, guide hole, opening and closing element, and sealing assembly. When the valve stem is operated, external force is transmitted to the opening and closing element through the guide hole, pushing the element to move along a predetermined path within the valve body. The valve core gradually engages or disengages from the valve seat, changing the fluid passage opening. During this process, the sealing assembly tightly cooperates with the valve stem and the opening and closing element to prevent media leakage while ensuring smooth valve stem movement.

[0003] In the prior art, the valve stem is located inside the guide hole. After long-term operation, impurities, deposits or lubricating oil stains can easily accumulate in the hole. These residues can hinder the smooth rotation or lifting of the valve stem, resulting in damage to the sealing surface or even leakage.

[0004] However, it usually requires complete disassembly of the valve stem and cleaning with external tools. This is not only cumbersome and time-consuming, but may also introduce secondary pollution or damage parts during disassembly, increasing maintenance costs and system downtime. Utility Model Content

[0005] The purpose of this invention is to provide a valve that is easy to clean, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: it includes a valve body, a guide hole at the top of the valve body, a valve stem installed in the guide hole, a protrusion fixed to the inner ring of the guide hole, a support block one and a support block two fixed to the outer ring of the valve stem, and a cleaning structure fixed between the support block one and the support block two, the cleaning structure being used to clean impurities from the inner wall of the guide hole.

[0007] Preferably, the valve stem is mounted on the valve cover, the valve stem passes through the valve cover, and the bottom end of the valve stem passes through the guide hole and extends into the internal water flow channel of the valve body.

[0008] Preferably, the protrusion has an annular structure, and the central axis of the protrusion and the central axis of the guide hole are coaxial. The protrusion is located at the bottom groove of the guide hole, and a rubber pad is fixed on the outer ring of the protrusion. Two sets of rubber pads are provided, with the other set of rubber pads located on the outer ring of the valve stem.

[0009] Preferably, the first support block has a ring-shaped cross-section, the outer ring of the first support block is fitted with the rubber pad, and the top surface of the first support block is flush with the top surface of the protrusion. The first support block and the valve stem are integrally formed.

[0010] Preferably, the second support block is located directly above the first support block, the second support block has a ring-shaped cross-section, and the second support block and the valve stem are integrally formed.

[0011] Preferably, the cleaning structure includes a mounting ring, a cleaning pad, and baffles. The mounting ring is located between support block one and support block two, and the inner ring of the mounting ring is in contact with another set of rubber pads. The inner ring of the cleaning pad is in contact with the outer ring of the mounting ring, and the outer ring of the cleaning pad is in close contact with the inner ring of the guide hole. Two sets of baffles are provided, and the two sets of baffles are located on the upper and lower sides of the cleaning pad. The two sets of baffles and the mounting ring are integrally formed, and the two sets of baffles are fixed to the outer ring of the mounting ring. The mounting ring has a ring-shaped cross-section.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] The valve proposed in this utility model is easy to clean. Because the valve stem is located inside the guide hole, impurities, deposits or lubricating oil may remain around it, which can easily affect the smooth rotation of the valve stem and even lead to leakage. When the valve stem needs to be removed, the support block pushes the mounting ring upward. Due to the longitudinal cleaning of the inner ring of the guide hole by the cleaning pad, the impurities are carried out. As the valve stem is pulled out, the cleaning pad and the mounting ring can also be taken out with it, reducing maintenance costs and improving valve reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This utility model Figure 1 A top-view structural diagram;

[0016] Figure 3 This utility model Figure 2 A schematic diagram of the AA-direction cross-section structure;

[0017] Figure 4 This utility model Figure 3 A magnified structural diagram at point A;

[0018] Figure 5 This is a schematic diagram of the valve stem structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the cleaning structure of this utility model.

[0020] In the diagram: 1. Valve body; 2. Guide hole; 3. Valve stem; 4. Protrusion; 5. Support block one; 6. Rubber pad; 7. Mounting ring; 8. Support block two; 9. Cleaning pad; 10. Baffle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Example 1

[0023] Please see Figures 1-6 This utility model provides a technical solution: a valve that is easy to clean, including a valve body 1, a guide hole 2 at the top of the valve body 1, a valve stem 3 installed in the guide hole 2, the valve stem 3 being installed on the valve cover, the valve stem 3 penetrating the valve cover, and the bottom end of the valve stem 3 penetrating the guide hole 2 and extending into the internal water flow channel of the valve body 1;

[0024] Specifically, the valve consists of a valve body 1, a valve cover, a valve stem 3, a guide hole 2, an opening and closing element, and a sealing assembly. The valve stem 3 is connected to the opening and closing element through the guide hole 2 at the top of the valve body 1, and is sealed and supported by packing and a sealing ring. This allows the valve stem 3 to smoothly drive the valve core when rotating or lifting, thereby completing the opening and closing of the valve port. The flow path of the fluid in the valve body is directly related to the opening and closing state of the valve core. When the valve stem 3 is rotated or lifted, the opening and closing element moves accordingly, causing the valve core and valve seat to gradually change the opening degree of the flow channel by fitting or separating. The flow, throttling, and regulation of the fluid are thus achieved.

[0025] Example 2

[0026] Based on Embodiment 1, in order to achieve cleaning of the inner ring of the guide hole 2, a protrusion 4 is fixed to the inner ring of the guide hole 2. The protrusion 4 has an annular structure, and its central axis is coaxial with the central axis of the guide hole 2. The protrusion 4 is located at the bottom groove of the guide hole 2, and a rubber pad 6 is fixed to the outer ring of the protrusion 4. There are two sets of rubber pads 6. The other set of rubber pads 6 is located on the outer ring of the valve stem 3. A support block 1 5 and a support block 2 8 are fixed to the outer ring of the valve stem 3. The support block 1 5 has an annular cross-section. The outer ring of the support block 1 5 fits against the rubber pad 6, and the top surface of the support block 1 5 is flush with the top surface of the protrusion 4. The support block 1 5 and the valve stem 3 are integrally formed. The support block 2 8 is located directly above the support block 1 5. The support block 2 8 is... The cross-section is annular. Support block 2 8 and valve stem 3 are integrally formed. A cleaning structure is fixed between support block 1 5 and support block 2 8. The cleaning structure is used to clean impurities on the inner wall of guide hole 2. The cleaning structure includes mounting ring 7, cleaning pad 9 and baffle 10. Mounting ring 7 is located between support block 1 5 and support block 2 8. The inner ring of mounting ring 7 is in contact with another set of rubber pads 6. The inner ring of cleaning pad 9 is in contact with the outer ring of mounting ring 7. The outer ring of cleaning pad 9 is in close contact with the inner ring of guide hole 2. There are two sets of baffle 10. The two sets of baffle 10 are located on the upper and lower sides of cleaning pad 9. The two sets of baffle 10 are integrally formed with mounting ring 7. The two sets of baffle 10 are fixed to the outer ring of mounting ring 7. Mounting ring 7 has an annular cross-section.

[0027] Specifically, in actual valve use, the guide hole 2 often accumulates small impurities, sediments, or lubricating oil stains. If these residues are not removed in time, they will affect the smooth rotation of the valve stem 3, and may even cause damage and leakage to the sealing surface. When the valve stem 3 is pulled upward, the internal support block 5 will simultaneously drive the mounting ring 7 to move, and the cleaning pad 9 will scrape longitudinally against the inner wall of the guide hole 2, peeling off and removing the adhering sediment and oil stains. As the valve stem 3 continues to move upward, the cleaning pad 9 and the mounting ring 7 remain linked with it until it is completely removed from the channel, and the inner wall of the guide hole 2 is also cleaned. The disassembly of the valve stem 3 and the cleaning of the channel are completed in the same action chain, without the need for additional tools and secondary processing. This not only reduces labor maintenance costs, but also avoids secondary wear caused by residual impurities, greatly improving the smoothness of valve opening and closing and the reliability of sealing, so that the valve remains stable and durable in long-term operation.

[0028] During long-term operation of valve 1, the inner wall of the guide hole 2 is prone to deposits of media impurities and sludge from lubricating oil, which can affect the smooth rotation of valve stem 3 and even cause leakage. To solve this problem, when valve stem 3 needs to be removed, the one-piece molded support block 5 at its lower end will first push the mounting ring 7 upward, causing the mounting ring 7 to drive the cleaning pad 9, which is attached to the outer ring, to scrape along the inner wall of the guide hole 2, gradually peeling off the attached impurities and oil. At the same time, the protrusion 4 at the bottom and the rubber pad 6 form a stable support and seal, ensuring that no new wear or displacement occurs during the cleaning process. As valve stem 3 continues to be pulled upward, the cleaning pad 9 remains tightly attached under the limiting protection of the baffle 10, preventing it from folding or falling off, thus achieving continuous cleaning of the inner wall. At this time, support block 8 works in conjunction with support block 5 to keep the mounting ring 7 and the cleaning pad 9 linked with valve stem 3 until it is completely removed from the guide hole 2. Through this action chain, the disassembly of valve stem 3 and the cleaning of guide hole 2 are completed simultaneously without the need for additional tools and separate steps. This reduces maintenance costs and avoids secondary wear caused by residual impurities, significantly improving the overall sealing reliability and service life of valve 1.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve that is easy to clean, comprising a valve body (1), a guide hole (2) at the top of the valve body (1), and a valve stem (3) installed in the guide hole (2), characterized in that: The inner ring of the guide hole (2) is fixed with a protrusion (4), and the outer ring of the valve stem (3) is fixed with a support block one (5) and a support block two (8). A cleaning structure is fixed between the support block one (5) and the support block two (8). The cleaning structure is used to clean the impurities on the inner wall of the guide hole (2). The cleaning structure includes a mounting ring (7), a cleaning pad (9), and a baffle (10). The mounting ring (7) is located between support block one (5) and support block two (8), and the inner ring of the mounting ring (7) is in contact with another set of rubber pads (6). The inner ring of the cleaning pad (9) is in contact with the outer ring of the mounting ring (7), and the outer ring of the cleaning pad (9) is in close contact with the inner ring of the guide hole (2). There are two sets of baffles (10), and the two sets of baffles (10) are located on the upper and lower sides of the cleaning pad (9). The two sets of baffles (10) and the mounting ring (7) are integrally formed. The two sets of baffles (10) are fixed on the outer ring of the mounting ring (7). The mounting ring (7) has a ring-shaped cross-section.

2. The easy-to-clean valve according to claim 1, characterized in that: The valve stem (3) is installed on the valve cover, the valve stem (3) passes through the valve cover, and the bottom end of the valve stem (3) passes through the guide hole (2) and extends into the internal water flow channel of the valve body (1).

3. The easy-to-clean valve according to claim 1, characterized in that: The protrusion (4) has a ring structure, and the central axis of the protrusion (4) and the central axis of the guide hole (2) are coaxial. The protrusion (4) is located at the bottom groove of the guide hole (2), and the outer ring of the protrusion (4) is fixed with a rubber pad (6). There are two sets of rubber pads (6), and the other set of rubber pads (6) is located on the outer ring of the valve stem (3).

4. The easy-to-clean valve according to claim 3, characterized in that: The support block (5) has a ring-shaped cross-section. The outer ring of the support block (5) is attached to the rubber pad (6), and the top surface of the support block (5) is flush with the top surface of the protrusion (4). The support block (5) and the valve stem (3) are integrally formed.

5. The easy-to-clean valve according to claim 4, characterized in that: The second support block (8) is located directly above the first support block (5). The second support block (8) has a ring-shaped cross-section and is integrally formed with the valve stem (3).

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