Adjustable concealed valve

Abstract

This invention relates to the field of valve technology, and in particular to an adjustable concealed valve, comprising a valve body, a valve stem rotatably mounted at the center of the top surface of the valve body, a valve handle fixedly mounted on the valve stem, extension platforms connected to both sides of the valve body, and opening / closing adjustment components for independently driving the valve stem rotation provided on the extension platforms. An energy storage drive component capable of storing energy to power the opening / closing adjustment components is also provided on the extension platforms. A concealed component for accommodating the valve handle is provided on one side of the valve body. This invention, through the setting of the opening / closing adjustment components, allows for rapid opening, closing, or adjustment of the valve body in emergency situations when the valve handle is missing. Pressing an adjustment button activates the energy storage drive component, driving a rack and pinion to engage with an adjustment gear, thereby rotating the valve stem and achieving emergency opening / closing adjustment. This avoids the efficiency problems caused by the slow speed of removing and installing the valve handle in unexpected situations.

Description

Technical Field

[0001] This invention relates to the field of valve technology, and in particular to an adjustable concealed valve. Background Technology

[0002] Valves are control components in fluid transport systems, used to open and close pipelines and control flow direction. They are mainly divided into manual valves and electric valves. Manual valves are widely used in industrial production due to their simple installation and operation, and are often used in production equipment.

[0003] Since the main operating element of a valve is the valve handle, which is often of a certain length and protrudes from the valve for the purpose of saving effort, there is a risk of accidental contact with the valve by personnel or objects in industrial production environments with large flow of people and materials, which may lead to abnormal opening and closing of pipelines or abnormal flow. Therefore, there is a concealed valve that can hide the valve handle when the valve is in stable use, so as to avoid the risk of accidental contact and protect the valve handle.

[0004] In actual production processes, production equipment often cannot maintain long-term stability. In emergencies such as equipment failure, it is often necessary to urgently open and close pipelines that are deeply involved in the production process. However, existing concealed valves require a certain amount of time to reset the valve handle and require a certain level of professional knowledge about the valve. Those who do not understand the valve's concealment principle may not know how to reset the valve handle. Therefore, in emergency situations, existing concealed valves may not be able to control the pipeline by opening and closing the valve as needed, which may lead to adverse effects on the equipment and products.

[0005] To address this, an adjustable concealed valve is proposed. Summary of the Invention

[0006] To overcome the shortcomings of the prior art, the present invention provides an adjustable concealed valve.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an adjustable concealed valve, comprising a valve body, a valve stem rotatably mounted at the center of the top surface of the valve body, a valve handle fixedly mounted on the valve stem, a limit rod fixedly mounted on the top surface of the valve body, a protrusion at the connecting end of the valve handle for resisting the limit rod to limit the rotation angle, extension platforms connected to both sides of the valve body, and opening and closing adjustment components for independently driving the valve stem rotation provided on the extension platforms, the number of opening and closing adjustment components being two sets, respectively used to drive the valve stem to open and close, the two sets of opening and closing adjustment components being arranged opposite to the valve stem, an energy storage drive component that can store energy to provide power to the opening and closing adjustment components being provided on the extension platforms, and a concealed component for accommodating the valve handle being provided on one side of the valve body.

[0008] As a preferred embodiment of the present invention, the opening and closing adjustment assembly includes an adjusting gear, which is mounted on a valve stem. A rack cylinder is connected to an extension platform. The rack cylinder has an opening on its left side and is slidably connected to a driving rack. The position of the driving rack corresponds to the adjusting gear. A rod is inserted into the end of the driving rack, and the free end of the rod is connected to the rack cylinder. The power application end of the energy storage drive assembly is mounted on the driving rack. A follower rack is fixedly connected to the bottom of the driving rack. Both sides of the follower rack are provided with ratchet teeth. Lifting rods are slidably connected to the inner walls of both sides of the rack cylinder. Guide rods are connected to the corresponding surfaces of the two lifting rods. A limiting rack is sleeved on the guide rod. A support spring is connected between the limiting rack and the lifting rod for pushing the limiting rack to reset after sliding. The corresponding surfaces of the two limiting racks are provided with ratchet teeth. The ratchet teeth on the limiting rack and the ratchet teeth on the follower rack are staggered, and the limiting rack engages with the corresponding follower rack. The two sides of the rack cylinder... A connecting plate is fitted onto the rack cylinder, and through holes are opened on both sides of the rack cylinder corresponding to the connecting plate. The connecting plate and the lifting rod are fixedly connected by screws. An adjustment button is connected to the top surface of the connecting plate. A repulsive magnet is installed on the top surface of the rack cylinder, and a magnet with the same magnetic pole as the repulsive magnet is connected to the bottom surface of the adjustment button. Slide grooves are opened on both sides of the inner wall of the rack cylinder. Slide blocks are connected to the opposite surfaces of the two lifting rods, and the slide blocks are fitted into the slide grooves. A label strip is connected to the extension platform to indicate the function of the adjustment button. A slot is opened on the surface of the valve stem, and a screw is connected to the surface of the adjusting gear and fitted into the slot. A fixing ring is fixedly connected to the surface of the valve stem above the adjusting gear. A return spring is connected between the fixing ring and the adjusting gear. There is a sliding allowance between the bottom surface of the adjusting gear and the valve body. A positioning shaft is connected to the top surface of one side of the adjusting gear. A circular hole adapted to the positioning shaft is opened on the top surface of the valve handle and fitted into the positioning shaft. An annular protrusion is provided on the surface of the positioning shaft to abut against the bottom surface of the valve handle.

[0009] As a preferred embodiment of the present invention, the energy storage drive assembly includes an energy storage cylinder, a groove is provided on the top surface of the extension platform and the energy storage cylinder is connected in the groove, an energy storage spring is connected to the inner wall of the bottom side of the energy storage cylinder, a cross shaft is connected to the center of the bottom surface of the energy storage cylinder, a cross sleeve is sleeved on the cross shaft, the cross sleeve has a cross-shaped vertical cross section, the middle part of the cross sleeve abuts against the energy storage spring, a groove adapted to the cross shaft is provided on the bottom surface of the cross sleeve and inserted into the cross shaft, a groove is provided on the top surface of the cross sleeve and a rotating rod is sleeved thereon, a number of spiral grooves are provided on the surface of the rotating rod, a spherical protrusion inserted into the spiral groove is provided on the inner wall of the cross sleeve, a toggle gear is connected to the top surface of the rotating rod and meshes with the drive rack, a hexagonal groove is connected to the top surface of the rotating rod, a frame plate is connected to the rotating rod through a rotating bearing, one end of the frame plate is connected to the rack cylinder, the top surface of the connecting plate is open, a fixed shaft is connected to the center of the top surface of the connecting plate, a rotating plate is rotatably connected to the surface of the fixed shaft, and two adjustment buttons are connected to both sides of the rotating plate.

[0010] As a preferred embodiment of the present invention, the concealed component includes a concealed cylinder, one side of the valve body is connected to the concealed cylinder, the top surface of the concealed cylinder has an inner cavity, and the shape of the inner cavity is adapted to the valve handle. The top surface of the concealed cylinder is movably connected to a top cover, the bottom surface of the concealed cylinder has a hole and a push shaft is fitted thereon, and one end of the push shaft located inside the concealed cylinder is connected to a push plate.

[0011] As a preferred embodiment of the present invention, a drain cylinder is connected to the opening corresponding to the top surface of the rack cylinder. A circular cavity is opened in the drain cylinder and a piston is sleeved therein. A lever is connected to the bottom end of the piston. The free end of the lever is V-shaped and corresponds to the drive rack. A liquid injection cylinder is connected to the bottom surface of the hidden cylinder. A push shaft is sleeved in the liquid injection cylinder. The tops of the drain cylinders of the two sets of opening and closing adjustment components are connected and communicated through liquid pipes. The top of one of the drain cylinders is connected and communicated with the bottom of the liquid injection cylinder through a liquid pipe. The drain cylinder is filled with a medium.

[0012] Compared with the prior art, the beneficial effects that this invention can achieve are:

[0013] 1. By setting the opening and closing adjustment component, in the absence of the valve handle, pressing the adjustment button activates the energy storage drive component to release energy. The drive rack engages with the adjustment gear through sliding, thereby driving the valve stem to rotate and achieve emergency opening and closing adjustment of the valve body. This allows for rapid opening, closing, or adjustment in emergency situations, avoiding the efficiency problems caused by the slow speed of removing and installing the valve handle in case of an accident. With the valve handle hidden for protection, it avoids problems of improper handling in case of an accident. Furthermore, the small adjustment button located on the valve body surface is not easily accidentally touched under normal circumstances, ensuring the stability of the valve body in use.

[0014] 2. With the energy storage drive component, during the energy storage phase, the operator can easily store energy using the lever arm of a hex wrench. During the release phase, the rebound of the high-elasticity energy storage spring provides a large pushing force to the drive rack, which exceeds the rotational resistance of the valve stem. This allows the drive rack to stably and efficiently drive the valve stem to rotate, meeting the needs of emergency opening and closing adjustment.

[0015] 3. Labels are used to identify the functions of the adjustment buttons, so that operators with relevant knowledge of the device can complete the operation of the emergency opening and closing adjustment valve with simple prompts, thereby ensuring that the emergency opening and closing adjustment function can be triggered manually in a more stable and efficient manner in emergency situations.

[0016] 4. The mechanism that the rotating plate will tilt under force will not drive the emergency opening and closing adjustment when pressing a single adjustment button, thereby further preventing accidental touch and ensuring the stable use of the valve body.

[0017] 5. When the drive rack extends to activate the opening and closing adjustment function, the drive rack contacts the inclined surface of the lever and pushes the piston upward. The piston injects the internal medium into the injection cylinder through the liquid pipe. The medium further pushes the push shaft upward, allowing the push plate to push the valve handle out of the concealed cylinder. Thus, while activating the opening and closing adjustment function, the valve handle is moved out for quick access, facilitating the connection between the valve handle and the valve stem for subsequent opening and closing operations, thereby improving operating efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the top surface structure of Embodiment 1 of the present invention;

[0019] Figure 2 This is a side view of Embodiment 1 of the present invention;

[0020] Figure 3 This is Embodiment 1 of the present invention. Figure 2 Enlarged view of point A;

[0021] Figure 4 This is a schematic diagram of the rack cylinder according to Embodiment 1 of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the rack cylinder according to Embodiment 1 of the present invention;

[0023] Figure 6 This is a cross-sectional view of the energy storage drive component according to Embodiment 1 of the present invention;

[0024] Figure 7 This is a schematic diagram of the bottom structure of the drive rack according to Embodiment 1 of the present invention;

[0025] Figure 8 This is a schematic diagram of the structure of the concealed cylinder according to Embodiment 1 of the present invention;

[0026] Figure 9 This is a schematic diagram of the bottom structure of the concealed cylinder according to Embodiment 1 of the present invention;

[0027] Figure 10 This is a schematic diagram of the push plate structure according to Embodiment 1 of the present invention;

[0028] Figure 11 This is a schematic diagram of the top surface structure of Embodiment 2 of the present invention;

[0029] Figure 12 This is a side view of Embodiment 2 of the present invention;

[0030] Figure 13 This is a cross-sectional view of the liquid discharge cylinder in Embodiment 2 of the present invention.

[0031] The components are as follows: 10. Valve body; 11. Valve stem; 12. Valve handle; 13. Limiting rod; 14. Extension platform; 15. Adjusting gear; 16. Rack cylinder; 17. Drive rack; 18. Follower rack; 19. Limiting rack; 20. Guide rod; 21. Lifting rod; 22. Support spring; 23. Connecting plate; 24. Adjusting button; 25. Repulsion magnet; 26. Slide groove; 27. Slider; 28. Label strip; 29. ​​Slot; 30. Fixed... 31. Fixed ring; 32. Return spring; 33. Positioning shaft; 34. Energy storage cylinder; 35. Energy storage spring; 36. Cross shaft; 37. Cross sleeve; 38. Spherical protrusion; 39. Rotating rod; 40. Spiral groove; 41. Actuating gear; 42. Fixed shaft; 43. Rotating plate; 44. Concealed cylinder; 45. Top cover; 46. Push plate; 47. Push shaft; 48. Injection cylinder; 49. Drainage cylinder; 50. Liquid pipe; 51. Piston; 52. Actuating lever. Detailed Implementation

[0032] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0033] Example 1: As Figure 1-10As shown, an adjustable concealed valve includes a valve body 10, which is a manual ball valve. A valve stem 11 is rotatably mounted on the center of the top surface of the valve body 10, and a valve handle 12 is fixedly mounted on the valve stem 11. The valve body 10, valve stem 11, and valve handle 12 are all prior art and will not be described in detail here. A limit rod 13 is fixedly mounted on the top surface of the valve body 10, and the connecting end of the valve handle 12 is provided with a protrusion for resisting the limit rod 13 to limit the rotation angle. The valve body 10 is characterized by having extension platforms 14 connected to both sides, and the extension platforms 14 are provided with opening and closing adjustment components for independently driving the valve stem rotation. It should be noted that the opening and closing adjustment... The valve body has two sets of adjustment components, one for opening and the other for closing the valve stem 11. These two sets of adjustment components are positioned opposite to the valve stem 11. An energy storage drive component is also provided on the extension platform 14 to power the adjustment components. A hidden component for accommodating the valve handle 12 is provided on one side of the valve body 10. It should be noted that while this application provides specific orientations of structural features, their dimensions are not limited and can be adjusted. The adjustment components include an adjusting gear 15, which is mounted on the valve stem 11 and can rotate with it. A rack cylinder 16 is connected to the extension platform 14. The rack cylinder 16 is positioned on the left... A drive rack 17 is slidably connected to the side opening. The position of the drive rack 17 corresponds to that of the adjusting gear 15. A rod is inserted into the end of the drive rack 17, and the free end of the rod is connected to the rack cylinder 16. The power-acting end of the energy storage drive component is located on the drive rack 17. A follower rack 18 is fixedly connected to the bottom of the drive rack 17. Both sides of the follower rack 18 are provided with ratchet teeth, which are inclined. Lifting rods 21 are slidably connected to the inner walls of both sides of the rack cylinder 16. Guide rods 20 are connected to the corresponding surfaces of the two lifting rods 21. A limiting rack 19 is sleeved on the guide rod 20. The limiting rack 19 can be guided... The rod 20 slides left and right. A support spring 22 is connected between the limiting rack 19 and the lifting rod 21 to push the limiting rack 19 back to its original position after sliding. The corresponding surfaces of the two limiting racks 19 are provided with ratchet teeth. The ratchet teeth on the limiting rack 19 and the ratchet teeth on the following rack 18 are staggered. The limiting rack 19 is engaged with the following rack 18 at the corresponding position. C-shaped connecting plates 23 are sleeved on both sides of the rack cylinder 16. Through holes are opened on both sides of the rack cylinder 16 at the positions corresponding to the connecting plates 23. The connecting plates 23 and the lifting rod 21 are fixedly connected by screws. An adjustment button 24 is connected to the top surface of the connecting plate 23.

[0034] Specifically, the energy storage drive assembly first stores energy. When the valve body 10 is not operated, the valve handle 12 is housed inside by the hidden assembly, thus preventing accidental contact and providing waterproof and corrosion-resistant protection for the valve handle 12. The drive rack 17 is kept in the rack cylinder 16 by the engagement of the follower rack 18 and the limit rack 19. In case of emergency, by pressing the adjustment button 24, the adjustment button 24 pushes the limit rack 19 down through the lifting rod 21 and the guide rod 20, allowing the follower rack 18 to disengage from the limit rack 19. The energy storage drive assembly releases power and applies the power to the drive rack 17, pushing the drive rack 17 to slide out of the rack cylinder 16. The drive rack 17 engages with the adjustment gear 15 through sliding, thereby driving the adjustment gear 15 to rotate. The adjustment gear 15 then drives the valve stem 11 to rotate, thus enabling emergency opening and closing adjustment of the valve body 10 in the absence of the valve handle 12.

[0035] like Figure 5 As shown, a repulsive magnet 25 is installed on the top surface of the rack cylinder 16, and a magnet with the same magnetic pole as the repulsive magnet 25 is connected to the bottom surface of the adjustment button 24 (not shown in the figure).

[0036] Specifically, the repulsive force between the repulsive magnet 25 and the magnet on the adjustment button 24 provides resistance to the descent of the adjustment button 24. When the adjustment button 24 is accidentally pressed, it is not easy to fall and cause the energy storage drive component to operate. After the adjustment button 24 falls, it provides a lifting force for reset. The magnetic force of the repulsive magnet 25 can be set as needed.

[0037] like Figure 5 and Figure 7 As shown, the inner walls of both sides of the rack cylinder 16 are provided with T-shaped grooves 26, and the opposing surfaces of the two lifting rods 21 are connected to sliders 27, which are fitted into the grooves 26.

[0038] Specifically, the lifting rod 21 is guided by the slide groove 26 and the slider 27, thereby making the lifting action of the lifting rod 21 more accurate and smooth.

[0039] like Figure 1 As shown, the extension table 14 is connected to a label strip 28, which is used to indicate the function of the adjustment button 24 at that location.

[0040] Specifically, the function of the adjustment button 24 is marked by the label 28, so that operators who are familiar with the relevant knowledge of this device can also complete the operation of the emergency opening and closing adjustment valve stem 11 with simple prompts.

[0041] like Figure 2 and Figure 3As shown, a slot 29 is provided on the surface of the valve stem 11, and a screw is connected to the surface of the adjusting gear 15 and the screw is fitted into the slot 29. A fixing ring 30 is fixedly connected to the surface of the valve stem 11 above the adjusting gear 15. A return spring 31 is connected between the fixing ring 30 and the adjusting gear 15. There is a sliding allowance between the bottom surface of the adjusting gear 15 and the valve body 10. A positioning shaft 32 is connected to the top surface of one side of the adjusting gear 15. A round hole adapted to the positioning shaft 32 is provided on the top surface of the valve handle 12 and is fitted into the positioning shaft 32. A ring protrusion is provided on the surface of the positioning shaft 32 to abut against the bottom surface of the valve handle 12.

[0042] Specifically, when the adjusting gear 15 rotates, the screw pushes the slot 29 to drive the valve stem 11 to rotate. The positioning shaft 32 rotates with the adjusting gear 15. When the valve handle 12 is connected to the valve stem 11, the round hole needs to be inserted into the positioning shaft 32. This ensures that when the valve handle 12 is connected, it can be guided to the position corresponding to the direction of the valve stem 11 after rotation, so that the valve ball in the valve body 10 will not have a positional deviation when the valve handle 12 is used later. After the valve handle 12 is installed, it applies downward pressure to the positioning shaft 32. The screw on the adjusting gear 15 descends along the slot 29, allowing the adjusting gear 15 to change its up and down position while still connected to the valve stem 11. This makes the position of the adjusting gear 15 offset from the drive rack 17, thus facilitating the storage of the drive rack 17 for reuse.

[0043] like Figure 5 As shown, the top surface of the connecting plate 23 is open, and a fixed shaft 41 is connected to the center of the top surface of the connecting plate 23. A rotating plate 42 is rotatably connected to the surface of the fixed shaft 41. There are two adjustment buttons 24 connected to both sides of the rotating plate 42.

[0044] Specifically, when adjustment button 24 is pressed alone, rotating plate 42 will tilt under force. This, combined with the cover plate of the shield, limits the downward position of the finger, preventing connecting plate 23 from falling under force. When both adjustment buttons 24 are pressed simultaneously, rotating plate 42 remains balanced and does not rotate, thus allowing force to be applied to connecting plate 23 through fixed shaft 41, thereby causing connecting plate 23 to fall. Using this mechanism, pressing one adjustment button 24 alone will not trigger emergency opening and closing adjustment, further preventing accidental touch.

[0045] like Figure 5 and Figure 6As shown, the energy storage drive assembly includes an energy storage cylinder 33. A groove is formed on the top surface of the extension platform 14, and the energy storage cylinder 33 is connected within the groove. An energy storage spring 34 is connected to the inner wall of the bottom side of the energy storage cylinder 33. A cross shaft 35 is connected to the center of the bottom surface of the energy storage cylinder 33. A cross sleeve 36 is fitted onto the cross shaft 35. The cross sleeve 36 has a cross-shaped vertical cross section. The middle of the cross sleeve 36 abuts against the energy storage spring 34. A groove adapted to the cross shaft 35 is formed on the bottom surface of the cross sleeve 36, and it is inserted into the cross shaft 35. The top surface of the cross sleeve 36... A groove is provided and a rotating rod 38 is fitted on it. The surface of the rotating rod 38 has several spiral grooves 39. The inner wall of the cross sleeve 36 has spherical protrusions 37 inserted into the spiral grooves 39. The top surface of the rotating rod 38 is connected to a toggle gear 40, which meshes with the drive rack 17. The top surface of the rotating rod 38 is connected to a hexagonal groove. The rotating rod 38 is connected to a frame plate through a rotating bearing. One end of the frame plate is connected to the rack cylinder 16. The rack cylinder 16 is provided with a cover plate for covering the toggle gear 40 and the connecting plate 23.

[0046] Specifically, after the valve handle 12 is installed on the valve stem 11, the adjusting gear 15 is pressed down to the position where it is disengaged from the drive rack 17. At this time, energy can be stored. During energy storage, by connecting the hexagonal wrench to the hexagonal groove on the rotating rod 38, the rotating rod 38 is rotated. When the rotating rod 38 rotates, the spherical protrusion 37 inserted in the spiral groove 39 exerts a thrust on the cross sleeve 36, causing the cross sleeve 36 to slide down on the cross shaft 35 and apply pressure to the energy storage spring 34. When the rotating rod 38 rotates, it drives the actuating gear 40 to rotate. The actuating gear 40 pushes the drive rack 17, which meshes with it, to slide into the rack cylinder 16. When the follower rack 18 slides with the drive rack 17, it abuts against the inclined surface of the ratchet teeth on the limiting rack 19, generating a thrust on the limiting rack 19 to slide to both sides. In turn, the limiting rack 19 slides along the guide rod 20. The outward movement avoids the sliding of the follower rack 18, and then resets it by the rebound of the support spring 22 after sliding one pitch. After the drive rack 17 is completely retracted into the rack cylinder 16, the concave surfaces of the ratchet teeth on the follower rack 18 and the limiting rack 19 engage, restricting the sliding of the drive rack 17, and thus preventing the actuating gear 40 from rotating. The energy storage spring 34 remains in a compressed and stored state. The elastic force of the energy storage spring 34 can be controlled by changing the model of the energy storage spring 34. After pressing the adjustment button 24, the drive rack 17 loses the limit of the limiting rack 19, and the energy storage spring 34 releases energy through rebound. The cross sleeve 36 rises with the release of energy from the energy storage spring 34 and pushes the cross sleeve 36 to rotate through the spherical protrusion 37, thereby causing the actuating gear 40 to push the drive rack 17 to extend.

[0047] like Figure 1 and Figure 8As shown, the concealed assembly includes a concealed cylinder 43. The concealed cylinder 43 is connected to one side of the valve body 10. The concealed cylinder 43 has an inner cavity on its top surface, and the shape of the inner cavity is adapted to the valve handle 12. The top surface of the concealed cylinder 43 is movably connected to a top cover 44.

[0048] Specifically, after the valve handle 12 is disassembled, it can be placed inside the concealed cylinder 43 and covered by the top cover 44, thereby protecting and concealing the valve handle 12.

[0049] like Figure 9 and Figure 10 As shown, the bottom surface of the concealed cylinder 43 has a hole and a push shaft 46 is fitted thereon. One end of the push shaft 46 located inside the concealed cylinder 43 is connected to a push plate 45.

[0050] Specifically, when removing the valve handle 12, the pusher 46 is pushed upwards, causing the pusher plate 45 to push the valve handle 12 out of the concealed cylinder 43, thereby facilitating the removal of the valve handle 12.

[0051] Example 2: Figure 11 and Figure 13 As shown, an adjustable concealed valve has a drain cylinder 48 connected to the corresponding opening on the top surface of the rack cylinder 16. The drain cylinder 48 has a circular cavity and a piston 50 is fitted inside. The bottom end of the piston 50 is connected to a lever 51. The free end of the lever 51 is V-shaped and corresponds to the drive rack 17. The bottom surface of the concealed cylinder 43 is connected to an injection cylinder 47. The push shaft 46 is fitted inside the injection cylinder 47. The tops of the drain cylinders 48 of the two sets of opening and closing adjustment components are connected and communicated through liquid pipes 49. The top of one of the drain cylinders 48 is connected and communicated with the bottom of the injection cylinder 47 through a liquid pipe 49. The drain cylinder 48 is filled with a medium, which can be air or hydraulic oil.

[0052] Specifically, when the drive rack 17 extends to activate the opening and closing adjustment function, the drive rack 17 abuts against the inclined surface of the lever 51 and pushes the piston 50 upward. The piston 50 injects the internal medium into the injection cylinder 47 through the liquid pipe 49. The medium further pushes the push shaft 46 upward, allowing the push plate 45 to push the valve handle 12 out of the hidden cylinder 43. Thus, while activating the opening and closing adjustment function, the valve handle 12 is moved out for quick access, facilitating the connection between the valve handle 12 and the valve stem 11 for subsequent opening and closing operations.

[0053] Working principle:

[0054] Before use: Connect the valve body 10, valve stem 11 and valve handle 12 and install them in the pipeline system. Use a hex wrench to insert into the hexagonal groove on the rotating rod 38 so that the drive rack 17 drives the gear to rotate in the direction of retraction into the rack cylinder 16 until the drive rack 17 is retracted into the rack cylinder 16.

[0055] In use: First, rotate the valve handle 12 to control the flow rate of the pipeline system until the production equipment can operate stably. Then, remove the valve handle 12 from the valve stem 11 and store it in the hidden assembly. The adjusting gear 15 is pulled up to the position of the corresponding drive rack by the return spring 31.

[0056] The second step is to press the two adjustment buttons 24 on one side simultaneously when an emergency adjustment of the valve body 10 is required. The energy storage drive assembly drives the drive rack 17 to extend. The drive rack 17 drives the valve stem 11 to rotate through the adjustment gear 15 to achieve emergency adjustment of the valve body 10.

[0057] The third step is to instruct non-professionals to operate the opening and closing adjustment components by directing them to refer to the information on label 28.

[0058] Fourth, after the opening and closing adjustment component is in operation, the push plate 45 pushes the valve handle 12 out of the hidden cylinder 43. After the operator takes it out, it is aligned with the positioning shaft 32 and installed on the valve stem 11 for subsequent adjustment.

[0059] After use: The adjusting gear 15 is pressed down by the valve handle 12 and disengages from the drive rack. Use a hex wrench to insert into the hexagonal slot on the rotating rod 38 to repeatedly store energy.

[0060] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An adjustable concealed valve, comprising a valve body (10), a valve stem (11) rotatably mounted at the center of the top surface of the valve body (10), a valve handle (12) fixedly mounted on the valve stem (11), a limit rod (13) fixedly mounted on the top surface of the valve body (10), and a protrusion at the connecting end of the valve handle (12) for abutting against the limit rod (13) to limit the rotation angle, characterized in that, Both sides of the valve body (10) are connected to an extension platform (14). The extension platform (14) is provided with an opening and closing adjustment assembly for independently driving the valve stem (11) to rotate. There are two sets of opening and closing adjustment assemblies, which are used to drive the valve stem (11) to open and close respectively. The two sets of opening and closing adjustment assemblies are arranged opposite to the valve stem (11). The extension platform (14) is also provided with an energy storage drive assembly that can store energy to provide power for the opening and closing adjustment assembly. A hidden assembly for accommodating the valve handle (12) is provided on one side of the valve body (10). The opening and closing adjustment assembly includes an adjusting gear (15), which is mounted on the valve stem (11). A rack cylinder (16) is connected to the extension platform (14). The rack cylinder (16) has an opening on the left side and is slidably connected to a driving rack (17). The position of the driving rack (17) corresponds to that of the adjusting gear (15). A rod is inserted into the end of the driving rack (17), and the free end of the rod is connected to the rack cylinder (16). The power end of the energy storage drive assembly is mounted on the driving rack (17). A follower rack (18) is fixedly connected to the bottom of the driving rack (17). Both sides of the follower rack (18) are provided with ratchet teeth. Lifting rods (21) are slidably connected to the inner walls of both sides of the rack cylinder (16). The corresponding surfaces of the two lifting rods (21) are connected to... A guide rod (20) is fitted with a limiting rack (19). A support spring (22) is connected between the limiting rack (19) and the lifting rod (21) for pushing the limiting rack (19) to reset after sliding. The corresponding surfaces of the two limiting racks (19) are provided with ratchet teeth. The ratchet teeth on the limiting rack (19) and the ratchet teeth on the following rack (18) are staggered. The limiting rack (19) engages with the following rack (18) at the corresponding position. A connecting plate (23) is fitted on both sides of the rack cylinder (16). Through holes are opened on both sides of the rack cylinder (16) at the positions corresponding to the connecting plate (23). The connecting plate (23) is fixedly connected to the lifting rod (21) by screws. An adjustment button (24) is connected to the top surface of the connecting plate (23).

2. The adjustable concealed valve according to claim 1, characterized in that, The top surface of the rack cylinder (16) is equipped with a repulsive magnet (25), and the bottom surface of the adjustment button (24) is connected to a magnet with the same magnetic pole as the repulsive magnet (25).

3. An adjustable concealed valve according to claim 2, characterized in that, The inner walls on both sides of the rack cylinder (16) are provided with sliding grooves (26), and the opposing surfaces of the two lifting rods (21) are connected with sliders (27), which are fitted into the sliding grooves (26).

4. An adjustable concealed valve according to claim 2, characterized in that, The extension platform (14) is connected to a label strip (28), which is used to indicate the function of the adjustment button (24) thereon.

5. An adjustable concealed valve according to claim 2, characterized in that, The valve stem (11) has a slot (29) on its surface. The adjusting gear (15) is connected to a screw and the screw is fitted into the slot (29). A fixing ring (30) is fixedly connected above the adjusting gear (15) on the surface of the valve stem (11). A return spring (31) is connected between the fixing ring (30) and the adjusting gear (15). There is a sliding allowance between the bottom surface of the adjusting gear (15) and the valve body (10). A positioning shaft (32) is connected to the top surface of one side of the adjusting gear (15). The valve handle (12) has a round hole adapted to the positioning shaft (32) on its top surface and is fitted with the positioning shaft (32). The positioning shaft (32) has a ring protrusion on its surface to abut against the bottom surface of the valve handle (12).

6. An adjustable concealed valve according to claim 5, characterized in that, The energy storage drive assembly includes an energy storage cylinder (33), a groove is provided on the top surface of the extension platform (14) and the energy storage cylinder (33) is connected inside the groove, an energy storage spring (34) is connected to the inner wall of the bottom side of the energy storage cylinder (33), a cross shaft (35) is connected to the center of the bottom surface of the energy storage cylinder (33), a cross sleeve (36) is sleeved on the cross shaft (35), the vertical section of the cross sleeve (36) is cross-shaped, the middle part of the cross sleeve (36) abuts against the energy storage spring (34), and a groove adapted to the cross shaft (35) is provided on the bottom surface of the cross sleeve (36) and inserted into it. A cross shaft (35) has a groove on the top surface of a cross sleeve (36) and a rotating rod (38) is fitted thereon. The rotating rod (38) has several spiral grooves (39) on its surface. The inner wall of the cross sleeve (36) has spherical protrusions (37) inserted into the spiral grooves (39). A gear (40) is connected to the top surface of the rotating rod (38). The gear (40) meshes with the drive rack (17). A hexagonal groove is connected to the top surface of the rotating rod (38). The rotating rod (38) is connected to a frame plate through a rotating bearing. One end of the frame plate is connected to the rack cylinder (16).

7. An adjustable concealed valve according to claim 6, characterized in that, The top surface of the connecting plate (23) is open, and a fixed shaft (41) is connected to the center of the top surface of the connecting plate (23). A rotating plate (42) is rotatably connected to the surface of the fixed shaft (41). There are two adjustment buttons (24) connected to both sides of the rotating plate (42).

8. An adjustable concealed valve according to claim 6, characterized in that, The concealed assembly includes a concealed cylinder (43), one side of the valve body (10) is connected to the concealed cylinder (43), the top surface of the concealed cylinder (43) has an inner cavity, and the shape of the inner cavity is adapted to the valve handle (12), and the top surface of the concealed cylinder (43) is movably connected to a top cover (44).

9. An adjustable concealed valve according to claim 8, characterized in that, The bottom surface of the concealed cylinder (43) has a hole and a push shaft (46) is fitted on it. One end of the push shaft (46) located inside the concealed cylinder (43) is connected to a push plate (45).

10. An adjustable concealed valve according to claim 9, characterized in that, The top of the rack cylinder (16) is connected to the corresponding opening of the drain cylinder (48). The drain cylinder (48) has a circular cavity and is fitted with a piston (50). The bottom end of the piston (50) is connected to a lever (51). The free end of the lever (51) is V-shaped and corresponds to the drive rack (17). The bottom surface of the hidden cylinder (43) is connected to the injection cylinder (47). The push shaft (46) is fitted inside the injection cylinder (47). The tops of the drain cylinders (48) of the two sets of opening and closing adjustment components are connected and communicated through liquid pipes (49). The top of one of the drain cylinders (48) is connected and communicated with the bottom of the injection cylinder (47) through liquid pipes (49). The drain cylinder (48) is filled with a medium.

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