Valve gland with dustproof function

Abstract

The utility model discloses a valve gland with dustproof function, including first gland, second gland and second threaded hole, first gland one side is equipped with second gland, first gland and second gland all are equipped with two symmetries second threaded hole, first gland and second gland pass through first threaded hole and are fixed with each other through screw, first gland one side outer wall fixedly connected with first rubber disc, second gland one side outer wall fixedly connected with second rubber disc, first rubber disc fixedly connected with a plurality of first rubber ring, first rubber ring one side of the innermost circle is equipped with the sealing ring, second rubber disc fixedly connected with a plurality of second rubber ring. The device utilizes the first rubber ring and second rubber ring of staggered arrangement, has realized the effect of high -efficient dustproof sealing, solved the problem that current device lacks reliable multilayer dustproof design and automatic cleaning function.

Description

Technical Field

[0001] This utility model relates to the technical field of valve sealing, specifically a valve gland with dustproof function. Background Technology

[0002] In industrial valve applications, traditional valve glands generally suffer from insufficient dust protection. Existing technologies mostly employ single-layer sealing structures, offering limited dust protection and failing to prevent the intrusion of fine dust particles. Long-term use can easily lead to valve shaft wear and seal failure. Especially outdoors or in high-dust conditions, ordinary glands easily accumulate dust, affecting valve operation flexibility and accelerating seal aging. While some improved products incorporate dust covers, they still suffer from inconvenient cleaning and maintenance, failing to achieve effective self-cleaning. Furthermore, traditional dustproof structures often lead to water accumulation in rainy weather, exacerbating corrosion risks. Therefore, there is an urgent need to develop a new type of valve gland with highly efficient dust protection and self-cleaning functions to address the problems of poor dust protection and high maintenance costs associated with existing technologies.

[0003] A search revealed Chinese patent publication number CN213117706U, which discloses a novel valve cap, comprising a cap body, a valve stem, and a valve cover. The cap body includes a left half-ring and a right half-ring. A collar is fitted onto the top outer end of each half-ring, and a retaining sleeve is symmetrically positioned in the middle of the collar. Both ends of the left and right half-rings penetrate the retaining sleeve and extend into its interior. A metal ring is fitted onto the outer side of the cap body below the collar. Alarm grooves are formed at both ends of the bottom of each half-ring, and an alarm device is installed inside each groove. The alarm device includes a connecting rod, one end of which is fitted with a material container filled with pigment. This utility model relates to the field of valve technology. This novel valve cap solves the problems of existing valve caps, which cannot increase their rigidity to prevent breakage as needed, and which cannot issue an alarm before or in the early stages of breakage to avoid more serious consequences.

[0004] However, although it achieves the breakage warning function, its dustproof performance is still insufficient: the multi-layer sealing structure is missing, and dust can easily enter the alarm mechanism; the sensitivity of the mechanically triggered alarm is affected by dust accumulation; and the lack of self-cleaning design may cause the pigment alarm device to become clogged and malfunction after long-term use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a valve cover with dustproof function, which addresses the problem that existing devices lack reliable multi-layer dustproof design and automatic cleaning function.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a valve cover with dustproof function, comprising a first cover, a second cover, and a second threaded hole. The second cover is provided on one side of the first cover. Both the first cover and the second cover are provided with two symmetrical second threaded holes. The first cover and the second cover are fixed to each other by screws passing through the first threaded holes. A first rubber disc is fixedly connected to the outer wall of one side of the first cover, and a second rubber disc is fixedly connected to the outer wall of one side of the second cover. Multiple first rubber rings are fixedly connected to the first rubber disc. A sealing ring is provided on one side of the innermost first rubber ring. Multiple second rubber rings are fixedly connected to the second rubber disc. The first threaded holes of the first cover and the second cover are connected to the valve cover by screws passing through them.

[0007] Preferably, a first sleeve is provided on one side of the first gland, a second sleeve is provided on one side of the second gland, and a valve shaft is provided between the first sleeve and the second sleeve.

[0008] Preferably, both the first sleeve and the second sleeve are provided with through holes, and the first sleeve and the second sleeve are respectively fixed to the first pressure cap and the second pressure cap by screws passing through the through holes and engaging with the third threaded hole.

[0009] Preferably, a first mating disc is fixedly connected to one side of the outer wall of the first sleeve, and a second mating disc is fixedly connected to one side of the outer wall of the second sleeve.

[0010] Preferably, the upper end of the outermost second rubber ring has an inlet, and after the first sleeve and the second sleeve are connected, the upper end of the outermost second rubber ring is connected.

[0011] Preferably, the second rubber ring at the lower end of the outermost ring has a discharge port. After the first sleeve and the second sleeve are connected, there is a gap at the lower end of the second rubber ring of the outermost ring, so they will not be connected.

[0012] This utility model provides a valve gland with dustproof function. It has the following beneficial effects:

[0013] This valve gland employs a staggered, multi-layered dustproof structure. The alternating arrangement of the first and second rubber rings forms multiple dust barriers, which, combined with the tight fit between the sealing ring and the sleeve, effectively prevents dust from entering the valve shaft. Its unique design not only provides excellent dustproof sealing performance but also enables convenient cleaning: it can be rinsed with water through the inlet or naturally flushed away by rainwater, allowing accumulated dust to flow along the inclined rubber rings and be discharged from the outlet, achieving a self-cleaning effect. This device is compact, easy to install, and particularly suitable for dusty environments or outdoor conditions, significantly improving the valve's dustproof capability and maintenance convenience, and extending the equipment's service life. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the first mating disc structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the third threaded hole structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the inlet of this utility model;

[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the discharge port of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. First rubber disc; 2. First sleeve; 3. Second sleeve; 4. Second rubber disc; 5. First threaded hole; 6. Valve shaft; 7. Second threaded hole; 8. First mating disc; 9. Second mating disc; 10. First gland; 11. Second gland; 12. Through hole; 13. Third threaded hole; 14. Second rubber ring; 15. Sealing ring; 16. First rubber ring; 17. Inlet; 18. Outlet. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-5This utility model provides a valve cover with dustproof function, including a first cover 10, a second cover 11, and a second threaded hole 7. The second cover 11 is located on one side of the first cover 10. Both the first cover 10 and the second cover 11 have two symmetrical second threaded holes 7. The first cover 10 and the second cover 11 are fixed to each other by screws passing through the first threaded holes 7. A first rubber disc 1 is fixedly connected to the outer wall of one side of the first cover 10, and a second rubber disc 4 is fixedly connected to the outer wall of one side of the second cover 11. Multiple first rubber rings 16 are fixedly connected to the first rubber disc 1, and a sealing ring 15 is located on one side of the innermost first rubber ring 16. Multiple second rubber rings 14 are fixedly connected to the second rubber disc 4. In use, the multiple first rubber rings 16 and second rubber rings 14 are concentrically distributed, forming multiple dustproof barriers. The sealing ring 15 is made of highly elastic rubber material, which can tightly fit the surfaces of the first sleeve 2 and the second sleeve 3, preventing dust and liquid from seeping in.

[0024] Example 2

[0025] Please see Figure 1-5 In this embodiment, a first sleeve 2 is provided on one side of the first pressure cap 10, and a second sleeve 3 is provided on one side of the second pressure cap 11. A valve shaft 6 is provided between the first sleeve 2 and the second sleeve 3. In use, the first sleeve 2 and the second sleeve 3 are made of wear-resistant metal material, and their inner diameter is slightly larger than the diameter of the valve shaft 6 to ensure that the shaft can rotate freely. The sleeve and the pressure cap are designed separately for easy maintenance and replacement. The inner wall of the sleeve can be coated with a lubricating coating to reduce friction with the shaft.

[0026] Both the first sleeve 2 and the second sleeve 3 are provided with through holes 12. The first sleeve 2 and the second sleeve 3 are fixed to the first pressure cap 10 and the second pressure cap 11 respectively by screws passing through the through holes 12 and engaging with the third threaded hole 13.

[0027] The first sleeve 2 has a first mating disc 8 fixedly connected to one side of its outer wall, and the second sleeve 3 has a second mating disc 9 fixedly connected to one side of its outer wall. In use, the mating disc adopts a contour design that matches the rubber disc, ensuring that the first rubber ring 16 and the second rubber ring 14 can be staggered to form a multi-layered dustproof space.

[0028] The second rubber ring 14 at the top of the outermost ring is provided with an inlet 17. When in use, the opening size of the inlet 17 is moderate, which can block most of the dust while allowing a small amount of water to enter for cleaning.

[0029] The second rubber ring 14 at the bottom of the outermost ring is provided with an outlet 18. When in use, the outlet 18 is slightly larger than the inlet 17 to facilitate the rapid discharge of internal substances. The outlet position is designed at the lowest point to allow for natural drainage by gravity.

[0030] Instructions for use: When using this device, pass two screws through the through holes 12 of the first sleeve 2 and the second sleeve 3 respectively, and screw them into the third threaded holes 13 of the first pressure cap 10 and the second pressure cap 11 to fix the first sleeve 2 to the first pressure cap 10 and the second sleeve 3 to the second pressure cap 11. At this time, the first rubber disc 1 and the second rubber disc 4 cooperate with the first mating disc 8 and the second mating disc 9. Multiple second rubber rings 14 and multiple first rubber rings 16 are interlaced to form multiple layers of dustproof zones. Connect the first threaded holes 5 of the first pressure cap 10 and the second pressure cap 11 to the valve cover by passing screws through them, and enter through port 17. The sloping design at the inlet blocks most of the dust. A small amount of dust enters the staggered dustproof zone through the inlet 17 and is intercepted by the upward-sloping first rubber ring 16 and second rubber ring 14. The sealing ring 15 fits against the outer wall of the first sleeve 2 and the second sleeve 3, further improving the sealing between the gland and the valve shaft 6. When clean water is injected from the inlet 17, the clean water carries the dust along the first rubber ring 16 or the second rubber ring 14 and is finally discharged from the outlet 18, thus cleaning the valve gland. Similarly, the valve gland can achieve a self-cleaning effect when it rains. It should be noted that this valve gland is suitable for horizontal valve shafts 6.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A valve cover with dustproof function, comprising a first cover (10), a second cover (11), and a second threaded hole (7), wherein the second cover (11) is provided on one side of the first cover (10), and both the first cover (10) and the second cover (11) are provided with two symmetrical second threaded holes (7), and the first cover (10) and the second cover (11) are fixed to each other by screws passing through the first threaded hole (5), characterized in that: A first rubber disc (1) is fixedly connected to one side of the outer wall of the first pressure cap (10), and a second rubber disc (4) is fixedly connected to one side of the outer wall of the second pressure cap (11). A plurality of first rubber rings (16) are fixedly connected to the first rubber disc (1), and a sealing ring (15) is provided on one side of the innermost first rubber ring (16). A plurality of second rubber rings (14) are fixedly connected to the second rubber disc (4).

2. The valve gland with dustproof function according to claim 1, characterized in that: A first sleeve (2) is provided on one side of the first pressure cap (10), a second sleeve (3) is provided on one side of the second pressure cap (11), and a valve shaft (6) is provided between the first sleeve (2) and the second sleeve (3).

3. A valve gland with dustproof function according to claim 2, characterized in that: The first sleeve (2) and the second sleeve (3) are both provided with through holes (12). The first sleeve (2) and the second sleeve (3) are fixed to the first pressure cap (10) and the second pressure cap (11) respectively by screws passing through the through holes (12) and engaging with the third threaded hole (13).

4. A valve gland with dustproof function according to claim 2, characterized in that: The first sleeve (2) has a first mating disc (8) fixedly connected to one side of its outer wall, and the second sleeve (3) has a second mating disc (9) fixedly connected to one side of its outer wall.

5. A valve gland with dustproof function according to claim 1, characterized in that: The second rubber ring (14) at the uppermost outermost ring has an inlet (17).

6. A valve gland with dustproof function according to claim 1, characterized in that: The second rubber ring (14) at the lower end of the outermost ring is provided with a discharge port (18).

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