Quick-release valve seat replacement control valve

Abstract

This utility model discloses a quick-release valve seat replacement regulating valve, including a valve body with openings on both the upper and lower circumferential sides. A valve seat is slidably fitted inside the valve body, and an annular groove is formed inside the valve body. Two retaining grooves are symmetrically formed on both the upper and lower circumferential sides of the valve seat. A first ring, a second ring, and a third ring are sequentially installed in the annular groove. Two first sliders are elastically and slidably fitted on the lower side of the first ring and the upper side of the third ring. This utility model uses two bidirectional screws to thread into four second sliders, thereby driving the four second sliders to move relative to each other. This causes the four second sliders to cancel or create a pressing relationship with the four first sliders, thereby canceling or creating a locking relationship between one end of the four first sliders and the four retaining grooves. This cancels or creates a fixed relationship between the valve body and the valve seat, realizing the installation or removal of the valve seat.

Description

Technical Field

[0001] This utility model relates to the field of regulating valve technology, specifically to a quick-release valve seat replacement regulating valve. Background Technology

[0002] Control valves are key equipment in modern industrial production. They can be used to change the cross-sectional area of ​​the passage and the direction of medium flow. They have functions such as guiding, shutting off, throttling, checking back, diverting or overflowing and relieving pressure. They play a very important role in the automatic control of modern factories.

[0003] Most control valves are one-piece structures. During operation, the valve seat is subject to erosion by the medium. Over time, this can lead to wear or damage to the valve seat, causing leaks and affecting the valve's sealing performance. Therefore, there is an urgent need to design a quick-release valve seat for replacing control valves to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a quick-release valve seat for replacing the regulating valve, thereby addressing the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-release valve seat replacement regulating valve includes a valve body with openings on the upper and lower circumferences. A valve seat is slidably fitted inside the valve body. An annular groove is provided inside the valve body. Two retaining grooves are symmetrically provided on the upper and lower circumferences of the valve seat. A first ring, a second ring, and a third ring are sequentially installed in the annular groove. Two first sliders are elastically and slidably fitted on the lower side of the first ring and the upper side of the third ring.

[0007] Both ends of the second ring are rotatably fitted with bidirectional screws, and both ends of the two bidirectional screws are threadedly fitted with second sliders corresponding to the first slider. One end of the first slider corresponds to the slot. The upper end of the valve body is rotatably fitted with a valve cover, and the lower side of the valve cover is equipped with an adjustment component corresponding to the valve seat.

[0008] Furthermore, the inner side of the annular groove is provided with four slots that communicate with the four card slots. One end of each of the four first sliders is equipped with a card block, the card block corresponds to the card slot, and the card block slides in the slot.

[0009] Furthermore, two symmetrical sliding grooves are formed on the lower side of the first ring and the upper side of the third ring. A spring is installed in each of the four sliding grooves. One end of the spring is fixed to the other end of the first slider, and the first slider slides within the sliding groove.

[0010] Furthermore, each of the two bidirectional screws is equipped with a worm gear in the middle, and both ends of the second ring are rotatably fitted with worms. The worms are arranged perpendicular to the bidirectional screws, and the worms mesh with the worm gears.

[0011] Furthermore, each of the two worm gears is equipped with a turntable at one end, the two turntables are located on the periphery of the valve body, and the adjacent sides of the first slider and the second slider are provided with inclined surfaces, the two inclined surfaces being opposite each other.

[0012] Furthermore, a first threaded groove is provided on the lower circumference of the valve cover, and a second threaded groove is provided on the upper inner side of the valve body, which is threadedly engaged with the first threaded groove. Sealing gaskets are installed on the lower inner side of the valve cover and the inner side of the valve seat.

[0013] Furthermore, the adjustment assembly includes a cylinder mounted on the upper side of the valve cover, a valve stem mounted on the lower side of the valve cover, and a stop block mounted on the lower end of the valve stem, wherein the output end of the cylinder is fixed to the upper end of the valve stem.

[0014] Furthermore, the stop block corresponds to the valve seat, and the two openings are respectively equipped with an inlet pipe and an outlet pipe. The valve seat is located between the inlet pipe and the outlet pipe, and the stop block is slidably fitted inside the valve seat.

[0015] In the above technical solution, the quick-release valve seat replacement regulating valve provided by this utility model has the following advantages:

[0016] 1. By rotating the valve cover at the upper end of the valve body, the valve body can be opened or closed, preparing for the next step of replacing the valve seat.

[0017] 2. By using two bidirectional screws, the two bidirectional screws engage with the four second sliders, thereby driving the four second sliders to move relative to each other. This causes the four second sliders to cancel or create a pressing relationship with the four first sliders, and thus one end of the four first sliders to cancel or create a snap-fit ​​relationship with the four slots. Consequently, the valve body cancels or creates a fixed relationship with the valve seat, enabling the installation or removal of the valve seat. This facilitates the replacement or maintenance of the valve seat by maintenance personnel, effectively reducing leakage and ensuring the sealing effect of the valve body. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a structural front view of an embodiment of the quick-release valve seat replacement regulating valve of this utility model.

[0020] Figure 2 A schematic diagram of the valve body structure provided for an embodiment of the quick-release valve seat replacement regulating valve of this utility model.

[0021] Figure 3 A schematic diagram of the valve seat structure provided for an embodiment of the quick-release valve seat replacement regulating valve of this utility model.

[0022] Figure 4 A schematic diagram of the slide groove structure provided for an embodiment of the quick-release valve seat replacement regulating valve of this utility model.

[0023] Figure 5 A schematic diagram of the valve cover structure provided for an embodiment of the quick-release valve seat replacement regulating valve of this utility model.

[0024] 1. Valve body; 2. Opening; 3. Valve seat; 4. Annular groove; 5. Slot; 6. First ring; 7. Second ring; 8. Third ring; 9. First slider; 10. Bidirectional screw; 11. Second slider; 12. Valve cover; 13. Groove; 14. Locking block; 15. Slide groove; 16. Spring; 17. Worm gear; 18. Worm; 19. Turntable; 20. First threaded groove; 21. Second threaded groove; 22. Sealing gasket; 23. Cylinder; 24. Stop block; 25. Inlet pipe; 26. Outlet pipe. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown, the quick-release valve seat replacement regulating valve provided in this embodiment includes a valve body 1. Openings 2 are provided on the circumference of both the upper and lower ends of the valve body 1. A valve seat 3 is slidably fitted inside the valve body 1. An annular groove 4 is provided inside the valve body 1. Two slots 5 are symmetrically provided on the circumference of both the upper and lower ends of the valve seat 3. A first ring 6, a second ring 7, and a third ring 8 are sequentially installed in the annular groove 4. Two first sliders 9 are elastically and slidably fitted on the lower side of the first ring 6 and the upper side of the third ring 8. Two bidirectional screws 10 are rotatably fitted at both ends of the second ring 7. Two second sliders 11 corresponding to the first sliders 9 are threaded at both ends of the two bidirectional screws 10. One end of the first slider 9 corresponds to the slot 5. A valve cover 12 is rotatably fitted on the upper end of the valve body 1, and an adjusting component corresponding to the valve seat 3 is installed on the lower side of the valve cover 12.

[0027] In this embodiment, a valve body 1 is included. Openings 2 are provided on the periphery of both the upper and lower ends of the valve body 1. A valve seat 3 is slidably fitted inside the valve body 1. An annular groove 4 is provided inside the valve body 1. Two slots 5 are symmetrically provided on the periphery of both the upper and lower ends of the valve seat 3.

[0028] Specifically, the inner side of the annular groove 4 is provided with four slots 13 that are connected to the four slots 5. One end of each of the four first sliders 9 is equipped with a locking block 14. The locking block 14 corresponds to the slot 5 and slides in the slot 13. Through the locking block 14, the first slider 9 drives the locking block 14 to slide in the slot 13, thereby creating or canceling the locking relationship between the locking block 14 and the slot 5, preparing for the next step of installing or disassembling the valve seat 3.

[0029] In this embodiment, a first ring 6, a second ring 7, and a third ring 8 are sequentially installed in the annular groove 4. The lower side of the first ring 6 and the upper side of the third ring 8 are elastically and slidably fitted with two first sliders 9.

[0030] Specifically, two symmetrical sliding grooves 15 are provided on the lower side of the first ring 6 and the upper side of the third ring 8. Springs 16 are installed in all four sliding grooves 15. One end of the spring 16 is fixed to the other end of the first slider 9. The first slider 9 slides in the sliding groove 15. Through the springs 16, the locking block 14 can be automatically pushed back and returned to its original position, so that the locking block 14 cancels the locking relationship with the locking groove 5, thereby quickly disassembling the valve seat 3.

[0031] In this embodiment, both ends of the second ring 7 are rotatably fitted with bidirectional screws 10, and both ends of the two bidirectional screws 10 are threadedly fitted with second sliders 11 corresponding to the first slider 9. One end of the first slider 9 corresponds to the slot 5.

[0032] Specifically, a worm gear 17 is installed in the middle of each of the two bidirectional screws 10, and a worm 18 is rotatably engaged at both ends of the second ring 7. The worm 18 is perpendicular to the bidirectional screw 10 and meshes with the worm gear 17. Through the worm 18, the worm 18 meshes with the worm gear 17 and rotates, thereby driving the bidirectional screw 10 and effectively improving the overall linkage.

[0033] Specifically, each of the two worm gears 18 is equipped with a turntable 19 at one end. The two turntables 19 are located on the periphery of the valve body 1, and the adjacent sides of the first slider 9 and the second slider 11 are provided with inclined surfaces. The two inclined surfaces correspond to each other, so that the four second sliders 11 simultaneously squeeze the four first sliders 9, thereby the four locking blocks 14 extend into the four locking slots 5 to realize the installation of the valve seat 3.

[0034] In this embodiment, the upper end of the valve body 1 is rotatably fitted with a valve cover 12;

[0035] Specifically, a first threaded groove 20 is provided on the lower circumference of the valve cover 12, and a second threaded groove 21 is provided on the upper inner side of the valve body 1, which is threadedly engaged with the first threaded groove 20. Sealing gaskets 22 are installed on the lower inner side of the valve cover 12 and the inner side of the valve seat 3. By threading the second threaded groove 21 with the first threaded groove 20, the upper end of the valve body 1 can be opened or closed depending on whether the valve seat 3 is installed or removed. The two sealing gaskets 22 can improve the sealing performance of the valve body 1 and reduce leakage.

[0036] In this embodiment, the lower side of the valve cover 12 is equipped with an adjustment component corresponding to the valve seat 3;

[0037] Specifically, the regulating component includes a cylinder 23 mounted on the upper side of the valve cover 12, a valve stem mounted on the lower side of the valve cover 12, and a stop block 24 mounted on the lower end of the valve stem. The output end of the cylinder 23 is fixed to the upper end of the valve stem. Through the cylinder 23, the valve stem can be driven to move up and down, so that the valve stem drives the stop block 24 to move up and down synchronously, thereby regulating the flow rate of the medium.

[0038] Specifically, the stop block 24 corresponds to the valve seat 3, and the two openings 2 are respectively equipped with an inlet pipe 25 and an outlet pipe 26. The valve seat 3 is located between the inlet pipe 25 and the outlet pipe 26, and the stop block 24 is slidably fitted inside the valve seat 3.

[0039] Working steps: 1. When it is necessary to open the upper end of the valve body 1, manually rotate the valve cover 12 so that the first thread groove 20 and the second thread groove 21 are threaded together, thereby rotating and removing the valve cover 12. At this time, the valve cover 12 drives the cylinder 23, valve stem and stop block 24 to rotate synchronously, thereby opening the upper end of the valve body 1.

[0040] 2. When valve seat 3 needs to be disassembled, the maintenance personnel manually rotate the two turntables 19. At this time, the two turntables 19 drive the two worm gears 18 to rotate synchronously, so that the two worm gears 18 mesh with the two worm wheels 17 and rotate, thereby driving the two double-direction screws 10 to rotate synchronously, so that the two double-direction screws 10 are threadedly engaged with the four second sliders 11, so that the four second sliders 11 move closer to each other. At this time, the four second sliders 11 release the pressure on the four first sliders 9, so that the four springs 16 drive the four first sliders 9 and the four locking blocks 14 to automatically return to their original positions, so that the four locking blocks 14 extend out from the four locking slots 5. At this time, the four first sliders 9 slide in the four sliding grooves 15, and the four locking blocks 14 slide in the four slots 13, so that the four locking blocks 14 release the engagement with the four locking slots 5, so that the valve seat 3 is no longer fixed to the valve body 1, thereby quickly disassembling the valve seat 3, which is convenient for maintenance personnel to replace or repair the valve seat 3.

[0041] 3. When the valve seat 3 needs to be installed, first place the valve seat 3 inside the valve body 1. Then, the maintenance personnel manually rotate the two turntables 19 in the opposite direction, which can drive the two worm gears 18 to rotate synchronously in the opposite direction. This causes the two worm gears 18 to mesh with the two worm wheels 17 in the opposite direction, thereby driving the two double-acting screws 10 to rotate synchronously in the opposite direction. This causes the two double-acting screws 10 to engage with the four second sliders 11 in the opposite direction, so that the four second sliders 11 move away from each other. At this time, the four second sliders 11 press against the four first sliders 9. At this time, the four first sliders 9 drive the four locking blocks 14 to slide and engage in the four sliding grooves 15 and extend into the four locking slots 5, so that the four locking blocks 14 engage with the four locking slots 5. Thus, the valve seat 3 is fixed together with the valve body 1, and the installation of the valve seat 3 is achieved.

[0042] 4. When it is necessary to adjust the flow rate of the medium, start the cylinder 23. The output end of the cylinder 23 drives the valve stem to move up and down, so that the valve stem drives the stop block 24 to move up and down synchronously. Thus, the blockage of the valve seat 3 can be adjusted according to the requirements, thereby realizing the adjustment of the flow rate of the medium.

[0043] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-release valve seat replacement regulating valve, comprising a valve body (1), characterized in that, The valve body (1) has openings (2) on the upper and lower circumferences. A valve seat (3) is slidably fitted inside the valve body (1). An annular groove (4) is provided inside the valve body (1). Two slots (5) are symmetrically provided on the upper and lower circumferences of the valve seat (3). A first ring (6), a second ring (7), and a third ring (8) are installed in sequence in the annular groove (4). Two first sliders (9) are elastically and slidably fitted on the lower side of the first ring (6) and the upper side of the third ring (8). Both ends of the second ring (7) are rotatably fitted with bidirectional screws (10), and both ends of the two bidirectional screws (10) are threadedly fitted with second sliders (11) corresponding to the first slider (9). One end of the first slider (9) corresponds to the slot (5). The upper end of the valve body (1) is rotatably fitted with a valve cover (12), and the lower side of the valve cover (12) is equipped with an adjustment component corresponding to the valve seat (3).

2. The quick-release valve seat replacement regulating valve according to claim 1, characterized in that, The inner side of the annular groove (4) is provided with four slots (13) that are connected to the four slots (5). One end of each of the four first sliders (9) is provided with a block (14). The block (14) corresponds to the slot (5) and the block (14) slides in the slot (13).

3. The quick-release valve seat replacement regulating valve according to claim 1, characterized in that, Two sliding grooves (15) are symmetrically opened on the lower side of the first ring (6) and the upper side of the third ring (8). A spring (16) is installed in each of the four sliding grooves (15). One end of the spring (16) is fixed to the other end of the first slider (9). The first slider (9) slides in the sliding groove (15).

4. The quick-release valve seat replacement regulating valve according to claim 1, characterized in that, Both of the two bidirectional screws (10) are equipped with worm gears (17) in the middle, and both ends of the second ring (7) are rotatably fitted with worms (18). The worms (18) are arranged perpendicular to the bidirectional screws (10), and the worms (18) mesh with the worm gears (17).

5. The quick-release valve seat replacement regulating valve according to claim 4, characterized in that, One end of each of the two worm gears (18) is equipped with a turntable (19), the two turntables (19) are located on the periphery of the valve body (1), and the adjacent sides of the first slider (9) and the second slider (11) are provided with inclined surfaces, the two inclined surfaces being opposite each other.

6. The quick-release valve seat replacement regulating valve according to claim 1, characterized in that, The lower end of the valve cover (12) is provided with a first threaded groove (20), and the upper end of the valve body (1) is provided with a second threaded groove (21) that is threadedly engaged with the first threaded groove (20). The lower end of the valve cover (12) and the inner side of the valve seat (3) are both provided with sealing gaskets (22).

7. The quick-release valve seat replacement regulating valve according to claim 1, characterized in that, The adjustment assembly includes a cylinder (23) mounted on the upper side of the valve cover (12), a valve stem mounted on the lower side of the valve cover (12), and a stop block (24) mounted on the lower end of the valve stem. The output end of the cylinder (23) is fixed to the upper end of the valve stem.

8. The quick-release valve seat replacement regulating valve according to claim 7, characterized in that, The stop block (24) corresponds to the valve seat (3). The two openings (2) are respectively equipped with an inlet pipe (25) and an outlet pipe (26). The valve seat (3) is located between the inlet pipe (25) and the outlet pipe (26), and the stop block (24) is slidably fitted inside the valve seat (3).

Images