Anti-corrosion durable valve

Abstract

The utility model discloses an anti-corrosion durable valve which comprises a valve body, a connecting mechanism is arranged on the valve body, the connecting mechanism comprises a fixing sleeve, sliding blocks, a connecting rod, a clamping plate, an adaptive groove, a rotating rod, a spiral strip and a blocking block, the fixing sleeve is installed at the top end of the valve body, the sliding blocks are arranged in the fixing sleeve in a sliding mode, the connecting rod is installed on the outer sides of the sliding blocks, and the clamping plate is installed on the clamping plate. The clamping plates are installed on the inner sides of the multiple sets of sliding blocks, the adaptive grooves are formed in the inner sides of the multiple sets of clamping plates, the rotating rod is rotationally arranged in the multiple sets of clamping plates, the spiral strip is installed on the outer wall of the rotating rod and is in sliding connection with the adaptive grooves, the blocking block is installed at the bottom end of the rotating rod, and the fixing sleeve is provided with a quick disassembling mechanism. The unlocking groove guides the matching block to slide, the matching block pulls the connecting block to move outwards, the sliding block and the clamping plate are pulled through the connecting rod to move outwards and compress the push spring, the rotating rod can be directly pulled out after clamping on the rotating rod is relieved, the clamping plate is reset under the action of the push spring after maintenance is completed, and reinstallation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to a corrosion-resistant and durable valve. Background Technology

[0002] In the field of transporting corrosive media such as chemicals and petroleum, valves are important control components in pipeline systems. Their service life and reliability directly affect the operational safety of the entire system. Currently, during long-term use, valves on the market are prone to having a large amount of dirt and crystals adhering to the valve stem surface due to the corrosion and deposition of the media. However, the existing valve structure design makes it difficult for operators to disassemble and clean the valve stem. This not only reduces the sealing performance of the valve, but also accelerates the wear of the valve stem, seriously affecting the service life of the valve.

[0003] In industrial production sites, valves often need to operate for extended periods in harsh environments such as high temperature, high pressure, or strong corrosion. Another significant problem with existing valve structures is the inability to quickly add lubricant to the valve body. This leads to increased frictional resistance between internal valve parts, which not only increases the difficulty of operation but also causes excessive wear on the parts. In such cases, opening and closing the valve becomes difficult and may even cause jamming, affecting production efficiency and potentially posing safety hazards. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the problems existing in the prior art, this utility model provides a corrosion-resistant and durable valve, thereby solving the technical problem mentioned in the background art where the structural design of existing valves makes it difficult for operators to disassemble and clean the valve stem.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant and durable valve, comprising a valve body, wherein a connecting mechanism is provided on the valve body, the connecting mechanism comprising a fixed sleeve, a slider, a connecting rod, a clamping plate, an adapter groove, a rotating rod, a spiral strip, and a plug. The fixed sleeve is installed on the top of the valve body, multiple sets of sliders are provided sliding within the fixed sleeve, the connecting rod is installed on the outside of the multiple sets of sliders, the clamping plate is installed on the inside of the multiple sets of sliders, the adapter groove is provided on the inside of the multiple sets of clamping plates, the rotating rod rotates within the multiple sets of clamping plates, the spiral strip is installed on the outer wall of the rotating rod and slidably connected to the adapter groove, and the plug is installed at the bottom end of the rotating rod. The fixed sleeve is provided with a quick-release mechanism, the quick-release mechanism comprising a rotating sleeve, an unlocking groove, a connecting block, a mating block, and a limiting mechanism. The rotating sleeve is rotatably installed on the outer wall of the fixed sleeve, multiple sets of unlocking grooves are provided distributed on the bottom surface of the rotating sleeve, the connecting block is installed on the outer end of the multiple sets of connecting rods, and the mating block is installed on the top surface of the multiple sets of connecting blocks and slidably connected to the multiple sets of unlocking grooves respectively.

[0008] The present invention is further configured such that a flow passage is provided in the valve body, the diameter of which is equal to that of the plug. By designing the diameter of the flow passage and the plug to be of equal size, it is ensured that the plug can completely seal the flow passage, thereby improving the sealing effect. At the same time, it avoids the medium from generating turbulence between the flow passage and the plug, thereby reducing the scouring and corrosion of the valve's inner wall.

[0009] The present invention is further configured such that a sealing strip is installed at the top of the fixed sleeve, and the inner side of the sealing strip is in contact with the rotating rod. By setting a sealing strip at the top of the fixed sleeve and having it in contact with the rotating rod, a double sealing structure is formed, which effectively prevents the medium from leaking between the rotating rod and the fixed sleeve, extends the service life of the sealing component, and at the same time, the elastic deformation of the sealing strip can compensate for the radial runout when the rotating rod rotates.

[0010] The present invention is further configured such that the top of the rotating rod is provided with a four-corner block, the outer side of the four-corner block is provided with a connecting sleeve, and the outer side of the connecting sleeve is provided with a rotating handle. Through the three-stage transmission structure of the four-corner block, the connecting sleeve and the rotating handle, not only is the rotation stability improved, but the torque transmission efficiency is also increased. At the same time, the design of the four-corner block is convenient for disassembly and assembly, and the setting of the connecting sleeve plays a protective role.

[0011] The present invention is further provided that push springs are connected between the outer side of the multiple sets of sliders and the fixed sleeve. By setting push springs on the outer side of the sliders, it is ensured that the sliders can automatically reset after the clamping is released. At the same time, the elastic deformation of the push springs can buffer the impact force when the sliders move, thereby improving the service life and operation smoothness of the clamping mechanism.

[0012] The present invention is further configured such that the outer sides of the multiple sets of mating blocks and unlocking grooves are provided with rounded corners. By providing rounded corners on the outer sides of the mating blocks and unlocking grooves, the frictional resistance when the mating blocks slide in the unlocking grooves is reduced, making the rotation smoother. At the same time, stress concentration caused by sharp corner contact is avoided, thus extending the service life of the parts.

[0013] The present invention is further configured such that the limiting mechanism includes a return spring, a sliding sleeve, a limiting rod, and a limiting hole. Multiple sets of return springs are mounted on the fixed sleeve, the sliding sleeve is mounted on the bottom end of multiple sets of return springs, multiple sets of limiting rods are mounted on the bottom surface of the sliding sleeve, and multiple sets of limiting holes are mounted on the rotating sleeve. The sliding sleeve is driven to move up and down by the return spring, and the cooperation between the limiting rod and the limiting hole achieves accurate positioning. The multiple sets of settings improve the reliability of positioning, and the setting of the return spring ensures that the limiting mechanism can automatically reset.

[0014] The present invention is further provided that the outer wall of the fixed sleeve is provided with guide strips, and multiple sets of guide strips are provided and slidably connected with the sliding sleeve. By providing multiple sets of guide strips on the outer wall of the fixed sleeve and slidingly cooperating with the sliding sleeve, it is ensured that the sliding sleeve will not deflect during the up and down movement, thereby improving the limiting accuracy. At the same time, the multiple sets of guide strips enhance the stability of the guide and reduce the wear between the sliding sleeve and the fixed sleeve.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a corrosion-resistant and durable valve with the following advantages:

[0017] 1. By setting a connecting mechanism on the valve body, the rotating rod drives the four corner blocks to rotate through the handle, and the four corner blocks drive the connecting sleeve to rotate. When the rotating rod rotates, the spiral strip on the outer wall slides relative to the matching groove on the inner side of the clamp plate, thereby driving the plug to descend and insert into the flow hole to achieve sealing. At the same time, the fit between the sealing strip and the rotating rod further improves the sealing performance, solving the problem of poor valve sealing performance in the prior art.

[0018] 2. By setting a quick-release mechanism on the fixed sleeve, when maintenance is required, the rotating sleeve drives the unlocking groove to rotate, the unlocking groove guides the mating block to slide, the mating block pulls the connecting block to move outward, and the connecting rod pulls the slider and clamp plate to move outward and compresses the push spring. After releasing the clamp on the rotating rod, the rotating rod can be directly pulled out. After maintenance is completed, the clamp plate is reset under the action of the push spring, which is convenient for reinstallation. This effectively solves the problem of the valve stem being inconvenient to disassemble and clean in the existing technology.

[0019] 3. By setting a limiting mechanism, in which the return spring drives the sliding sleeve to move up and down, the limiting rod on the bottom surface of the sliding sleeve cooperates with the limiting hole on the rotating sleeve. Under the guidance of the guide bar, the sliding sleeve is ensured to slide accurately along the fixed sleeve. When the rotating sleeve returns to its original position, the limiting rod inserts into the limiting hole to achieve precise positioning, avoiding the safety hazard of the rotating rod falling off due to accidental rotation of the rotating sleeve, and improving the reliability of the valve. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a corrosion-resistant and durable valve according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the valve body in this utility model;

[0022] Figure 3 This is a cross-sectional view of the fixing sleeve in this utility model;

[0023] Figure 4 This is a schematic diagram of the limiting mechanism in this utility model;

[0024] Figure 5This is a schematic diagram of the mating groove in this utility model.

[0025] In the diagram: 1. Valve body; 2. Fixed sleeve; 3. Slider; 4. Connecting rod; 5. Clamping plate; 6. Adaptor groove; 7. Rotating rod; 8. Spiral strip; 9. Block; 10. Rotating sleeve; 11. Unlocking groove; 12. Connecting block; 13. Mating block; 14. Flow hole; 15. Sealing strip; 16. Four corner blocks; 17. Connecting sleeve; 18. Turn handle; 19. Push spring; 20. Return spring; 21. Sliding sleeve; 22. Limiting rod; 23. Limiting hole; 24. Guide strip. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A corrosion-resistant and durable valve includes a valve body 1. A connecting mechanism is provided on the valve body 1. The connecting mechanism includes a fixed sleeve 2, a slider 3, a connecting rod 4, a clamping plate 5, an adapter groove 6, a rotating rod 7, a spiral strip 8, and a plug 9. The fixed sleeve 2 is installed at the top of the valve body 1. Multiple sliders 3 slide within the fixed sleeve 2. The connecting rod 4 is installed outside the multiple sliders 3. The clamping plate 5 is installed inside the multiple sliders 3. The adapter groove 6 is located inside the multiple clamping plates 5. The rotating rod 7 rotates within the multiple clamping plates 5. The spiral strip 8 is installed... The outer wall of the rotating rod 7 is slidably connected to the adapter groove 6. The plug 9 is installed at the bottom end of the rotating rod 7. The fixed sleeve 2 is provided with a quick release mechanism. The quick release mechanism includes a rotating sleeve 10, an unlocking groove 11, a connecting block 12, a mating block 13 and a limiting mechanism. The rotating sleeve 10 is rotatably installed on the outer wall of the fixed sleeve 2. The unlocking groove 11 is provided in multiple sets distributed on the bottom surface of the rotating sleeve 10. The connecting block 12 is installed on the outer end of multiple sets of connecting rods 4. The mating block 13 is installed on the top surface of multiple sets of connecting blocks 12 and is slidably connected to multiple sets of unlocking grooves 11 respectively.

[0030] A flow passage 14 is provided inside the valve body 1. The diameter of the flow passage 14 is equal to that of the plug 9. The working principle is that when the plug 9 descends, since the diameter of the flow passage 14 is equal to that of the plug 9, the plug 9 can be completely embedded in the flow passage 14. The radial pressure is generated by the interference fit between the two, thereby achieving a sealing effect.

[0031] A sealing strip 15 is installed at the top of the fixed sleeve 2. The inner side of the sealing strip 15 is in contact with the rotating rod 7. Its working principle is that the sealing strip 15 maintains a tight fit with the outer wall of the rotating rod 7 through its own elastic deformation ability. When the rotating rod 7 rotates, the sealing strip 15 can adapt to the radial runout of the rotating rod 7 and continuously maintain the contact pressure of the sealing surface.

[0032] The top of the rotating rod 7 is provided with a four-corner block 16, and a connecting sleeve 17 is provided on the outside of the four-corner block 16. A handle 18 is installed on the outside of the connecting sleeve 17. The working principle is that the handle 18 drives the four-corner block 16 to rotate through the connecting sleeve 17, and the four-corner block 16 then drives the rotating rod 7 to rotate. This multi-stage transmission structure not only improves the smoothness of rotation, but also increases the output torque through the lever principle.

[0033] Multiple sets of sliders 3 are connected to the outer side of the fixed sleeve 2 with push springs 19. The working principle is that when the push spring 19 is in a compressed state, it stores elastic potential energy. When the clamp is released, the push spring 19 releases the potential energy to push the slider 3 to move inward, realizing the automatic reset function. At the same time, the elastic characteristics of the push spring 19 can buffer the impact force when the slider 3 moves.

[0034] The outer sides of the multiple sets of mating blocks 13 and the unlocking groove 11 are all provided with rounded corners. The working principle is that when the rotating sleeve 10 rotates, the rounded corner design allows the mating blocks 13 to slide smoothly along the contour of the unlocking groove 11, reducing contact stress and frictional resistance, making the whole unlocking process smoother.

[0035] In this embodiment, the rotating rod 7 drives the four-corner block 16 to rotate via the handle 18, and the four-corner block 16 drives the connecting sleeve 17 to rotate. When the rotating rod 7 rotates, the spiral strip 8 on its outer wall slides relative to the matching groove 6 on the inner side of the clamping plate 5, causing the bottom block 9 to descend and insert into the flow hole 14 of the valve body 1 to achieve a seal. When it is necessary to disassemble the block 9, the limiting mechanism restricts the rotating sleeve 10, and rotating the rotating sleeve 10 drives multiple sets of unlocking grooves 11 to rotate. The multiple sets of unlocking grooves 11 guide multiple sets of mating blocks 1 3. Slide the multiple sets of mating blocks 13 to pull the connecting block 12 outward, thereby pulling the slider 3 and the clamping plate 5 outward through the connecting rod 4, while squeezing the push spring 19 and releasing the clamp on the rotating rod 7. Then the rotating rod 7 can be directly pulled out of the valve body 1 and the fixing sleeve 2. Subsequently, the elastic reset of the multiple sets of push springs 19 pushes the slider 3 and the clamping plate 5 inward, so that the adapter grooves 6 set on the inner side of the multiple sets of clamping plates 5 are connected. Then the spiral strip 8 set on the outer wall of the rotating rod 7 is slidably connected to the adapter groove 6 for installation.

[0036] Please see Figure 4 As one implementation of the limiting mechanism: the limiting mechanism includes a return spring 20, a sliding sleeve 21, a limiting rod 22 and a limiting hole 23. Multiple sets of return springs 20 are installed on the fixed sleeve 2, the sliding sleeve 21 is installed at the bottom of multiple sets of return springs 20, multiple sets of limiting rods 22 are installed on the bottom surface of the sliding sleeve 21, and multiple sets of limiting holes 23 are installed on the rotating sleeve 10.

[0037] The outer wall of the fixed sleeve 2 is provided with guide strips 24. There are multiple sets of guide strips 24 and they are slidably connected to the sliding sleeve 21. The working principle is that during the up and down movement of the sliding sleeve 21, the circumferential displacement of the sliding sleeve 21 is restricted by the sliding cooperation with multiple sets of guide strips 24, ensuring that the sliding sleeve 21 can only move along the axial direction of the fixed sleeve 2, thereby improving the accuracy of the movement.

[0038] More specifically, the return spring 20 drives the sliding sleeve 21 to move up and down. The limiting rod 22 on the bottom surface of the sliding sleeve 21 cooperates with the limiting hole 23 on the rotating sleeve 10. The guide strip 24 ensures that the sliding sleeve 21 slides accurately along the fixed sleeve 2. When the rotating sleeve 10 returns to its original position, the limiting rod 22 is inserted into the limiting hole 23 to achieve precise positioning.

[0039] In summary, during the use or operation of the overall equipment: the rotating rod 7 drives the four corner blocks 16 to rotate via the handle 18, and the four corner blocks 16 drive the connecting sleeve 17 to rotate. When the rotating rod 7 rotates, the spiral strip 8 on its outer wall slides relative to the matching groove 6 on the inner side of the clamping plate 5, causing the bottom block 9 to descend and insert into the flow hole 14 of the valve body 1 to achieve a seal. When it is necessary to disassemble the block 9, the limiting mechanism restricts the rotating sleeve 10, and rotating the rotating sleeve 10 drives multiple sets of unlocking grooves 11 to rotate. The multiple sets of unlocking grooves 11 guide multiple... The assembly block 13 slides, and the multiple sets of assembly blocks 13 pull the connecting block 12 outward, thereby pulling the slider 3 and the clamping plate 5 outward through the connecting rod 4, while squeezing the push spring 19 and releasing the clamp on the rotating rod 7. Then the rotating rod 7 can be directly pulled out of the valve body 1 and the fixing sleeve 2. Subsequently, the elastic reset of the multiple sets of push springs 19 pushes the slider 3 and the clamping plate 5 inward, so that the adapter groove 6 provided on the inner side of the multiple sets of clamping plates 5 is connected. Then the spiral strip 8 provided on the outer wall of the rotating rod 7 is slidably connected to the adapter groove 6 for installation.

[0040] The return spring 20 drives the sliding sleeve 21 to move up and down. The limiting rod 22 on the bottom surface of the sliding sleeve 21 cooperates with the limiting hole 23 on the rotating sleeve 10. The guide strip 24 ensures that the sliding sleeve 21 slides accurately along the fixed sleeve 2. When the rotating sleeve 10 returns to its original position, the limiting rod 22 is inserted into the limiting hole 23 to achieve precise positioning.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A corrosion-resistant and durable valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with a connecting mechanism, which includes a fixed sleeve (2), a slider (3), a connecting rod (4), a clamping plate (5), an adapter groove (6), a rotating rod (7), a spiral strip (8), and a plug (9). The fixed sleeve (2) is installed on the top of the valve body (1). The slider (3) is provided with multiple sets of sliding within the fixed sleeve (2). The connecting rod (4) is installed on the outside of the multiple sets of sliders (3). The clamping plate (5) is installed on the inside of the multiple sets of sliders (3). The adapter groove (6) is provided on the inside of the multiple sets of clamping plates (5). The rotating rod (7) rotates within the multiple sets of clamping plates (5). The spiral strip (8) is installed on the rotating rod (7). The outer wall of the fixed sleeve (2) is slidably connected to the adapter groove (6), the plug (9) is installed at the bottom end of the rotating rod (7), and the fixed sleeve (2) is provided with a quick release mechanism. The quick release mechanism includes a rotating sleeve (10), an unlocking groove (11), a connecting block (12), a mating block (13) and a limiting mechanism. The rotating sleeve (10) is rotatably installed on the outer wall of the fixed sleeve (2). The unlocking groove (11) is provided with multiple sets distributed on the bottom surface of the rotating sleeve (10). The connecting block (12) is installed on the outer end of multiple sets of connecting rods (4). The mating block (13) is installed on the top surface of multiple sets of connecting blocks (12) and is slidably connected to multiple sets of unlocking grooves (11).

2. The corrosion-resistant and durable valve according to claim 1, characterized in that: The valve body (1) has a flow passage (14) inside, and the diameter of the flow passage (14) is equal to that of the block (9).

3. The corrosion-resistant and durable valve according to claim 2, characterized in that: A sealing strip (15) is installed at the top of the fixed sleeve (2), and the inner side of the sealing strip (15) is in contact with the rotating rod (7).

4. The corrosion-resistant and durable valve according to claim 3, characterized in that: The top of the rotating rod (7) is provided with a four-corner block (16), and a connecting sleeve (17) is provided on the outside of the four-corner block (16). A throttle (18) is installed on the outside of the connecting sleeve (17).

5. A corrosion-resistant and durable valve according to claim 4, characterized in that: multiple sets Push springs (19) are connected between the outer side of the slider (3) and the fixed sleeve (2).

6. A corrosion-resistant and durable valve according to claim 5, characterized in that: The outer sides of the multiple sets of mating blocks (13) and unlocking slots (11) are all provided with rounded corners.

7. A corrosion-resistant and durable valve according to claim 6, characterized in that: The limiting mechanism includes a reset spring (20), a sliding sleeve (21), a limiting rod (22), and a limiting hole (23). Multiple sets of reset springs (20) are installed on the fixed sleeve (2). The sliding sleeve (21) is installed at the bottom of multiple sets of reset springs (20). Multiple sets of limiting rods (22) are installed on the bottom surface of the sliding sleeve (21). Multiple sets of limiting holes (23) are installed on the rotating sleeve (10).

8. A corrosion-resistant and durable valve according to claim 7, characterized in that: The outer wall of the fixed sleeve (2) is provided with guide strips (24), and multiple sets of guide strips (24) are provided and are slidably connected to the sliding sleeve (21).

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