Large-flow spherical regulating valve

Abstract

The invention provides a high-flow spherical regulating valve, and relates to the technical field of spherical regulating valves, the high-flow spherical regulating valve comprises a valve body, a connecting sleeve is arranged at the top of the valve body, a supporting top seat is arranged at the top of the connecting sleeve, and sleeves are arranged on the left and right sides of the valve body; a first supporting ring is arranged in the sleeve on the right side; by stably supporting the left side and the right side of the ball body, accurate positioning can be achieved, the ball body can be kept at the correct position all the time, the good contact state of a sealing face is maintained, and therefore the stability of the sealing performance is guaranteed, and sealing failure caused by deviation of the ball body is avoided; the problems that when an existing large-flow ball-type regulating valve is used, under the condition of large-flow high-speed flowing, fluid impacts some specific portions of a ball body, such as the position, opposite to a fluid inlet, of the ball body or the fluid turning position, of the ball body, larger impact force and friction force can be borne, the matching between the ball body and a valve seat becomes poor, the sealing performance is reduced, and the service life of the ball body is affected are solved. And even serious leakage is caused.

Description

Technical Field

[0001] The present invention relates to the technical field of spherical control valves, and particularly to a large-flow spherical control valve. Background Art

[0002] A large-flow spherical control valve is a valve device widely used in the field of industrial fluid control. The large-flow spherical control valve adjusts the fluid flow rate by rotating the sphere to change the flow area of the valve. When the through-hole of the sphere coincides with the pipeline axis, the valve is in the fully open state, and the fluid can pass through the valve unobstructed, and the flow rate is the largest at this time; when the sphere rotates, the included angle between the through-hole and the pipeline axis gradually increases, the flow area of the valve gradually decreases, and the fluid flow rate also decreases accordingly; when the sphere rotates 90°, the through-hole is perpendicular to the pipeline axis, the valve is in the fully closed state, and the fluid is completely cut off. By controlling the rotation angle of the sphere, the fluid flow rate can be accurately controlled to meet different process requirements.

[0003] For example, the invention with application number CN202411253925.7 relates to a flow control ball valve and its manufacturing method. The present invention effectively solves the problems that the existing ball valve structure is difficult to control the flow rate, and it is not convenient to arbitrarily switch the flow pipelines in a multi-channel pipeline, and cannot achieve precise flow regulation; the technical solutions include: through the settings of a composite ball valve structure, a first flow guiding and sealing sleeve, a second flow guiding and sealing sleeve, a first valve rod structure and a second valve rod structure, the flow control ball valve can realize the independent control of the on-off of each pipeline in a three-way pipeline, so that any two pipelines can flow or flow and close simultaneously, increasing the diversity of the regulation of the ball valve, and can more accurately regulate the flow rate in the pipeline through the composite ball valve structure, making the flow control effect better, and the first flow guiding and sealing sleeve and the second flow guiding and sealing sleeve can ensure the sealing performance inside the ball valve structure, making the flow control ball valve more conducive to use.

[0004] When the existing large-flow spherical control valve is in use: 1. In the case of high-speed flow of a large flow rate, the fluid will impact some specific parts of the sphere, such as the position opposite to the fluid inlet or the fluid turning point of the sphere, and will bear greater impact force and friction force, which will deteriorate the fit between the sphere and the valve seat, reduce the sealing performance, and even cause serious leakage problems; 2. The opening degree of the valve determines the fluid flow rate. If the valve stem rotates due to accidental contact, it may cause the opening degree of the valve to change, resulting in a sudden increase or decrease in the fluid flow rate, affecting the stability of the fluid flow rate in the system; 3. Usually, the valve is opened and closed by clockwise and counterclockwise rotations. In case of an emergency or when the valve needs to be operated quickly, for personnel who are not familiar with the equipment, the two-way operation method may cause confusion and prevent the operator from reacting quickly, having a certain risk of misoperation. Summary of the Invention

[0005] Embodiments of the present disclosure relate to a large-flow spherical regulating valve, which is provided with a first support ring and an adjusting ring. When adjusting the rotation of the sphere, the first support block and the rolling wheel are in contact with the sphere, and the elastic action of the first compression spring is used to support the right side of the sphere. At the same time, the second support block and the limit sleeve are matched with each other, and the elastic action of the second compression spring can stably support the left side of the sphere. Through accurate positioning, the sphere can always be kept in the correct position, maintaining a good contact state of the sealing surface, thereby ensuring the stability of the sealing performance and preventing the problem of sealing failure caused by the deviation of the sphere.

[0006] In a first aspect of the present disclosure, a large-flow spherical regulating valve is provided, specifically including: a valve body, a connecting sleeve is provided at the top of the valve body, a supporting top seat is provided at the top of the connecting sleeve, sleeves are provided on the left and right sides of the valve body, and the two sleeves are distributed symmetrically left and right. An inner tube is provided in the sleeve, and the inner tube is matched with the valve seat inside the valve body; A first support ring is provided in the sleeve on the right side; a second support ring is provided in the sleeve on the left side; a sphere is provided in the valve seat of the valve body; an installation top cover is provided above the supporting top seat; a second valve rod is rotatably installed on the installation top cover through a bearing; a rotating ring frame is provided in the connecting sleeve; a fixed sleeve is provided in the connecting sleeve, and the fixed sleeve is located below the rotating ring frame; two positioning clamping plates are provided in the connecting sleeve, and the two positioning clamping plates are distributed symmetrically, and the positioning clamping plates correspond to the position of the fixed sleeve; a hand wheel is provided at the top end of the second valve rod.

[0007] In at least some embodiments, an adjusting ring is provided to the left of the first support ring. Two limit sliding rods are provided on the adjusting ring, and the two limit sliding rods are distributed parallel to each other up and down. The limit sliding rods slide through the first support ring. A first compression spring is provided between the first support ring and the adjusting ring. Two first support blocks are provided on the left side of the adjusting ring, and the two first support blocks are distributed symmetrically. Chamfers are provided on the edges of the first support blocks. Rolling wheels are rotatably installed on the first support blocks, and the rolling wheels are in rolling connection with the sphere.

[0008] In at least some embodiments, two limit sleeve frames are provided on the second support ring, and the two limit sleeve frames are distributed symmetrically up and down. A baffle is provided at the rear of the limit sleeve frame. A second support block is slidably installed in the limit sleeve frame, and the second support block is in contact with the sphere. Two insertion rods are provided at the rear of the second support block, and the two insertion rods are distributed symmetrically. The insertion rods slide through the baffle, and a second compression spring is sleeved on the insertion rods, and the second compression spring is supported between the baffle and the second support block.

[0009] In at least some embodiments, first valve rods are provided on the upper and lower sides of the sphere, and the first valve rods are rotatably connected to the valve seat of the valve body through bearings. A rubber ring is provided on the upper first valve rod, and the rubber ring is located in the connecting sleeve and is matched with the two positioning clamping plates.

[0010] In at least some embodiments, a connecting seat is provided at the bottom of the installation top cover, and the connecting seat is fixedly connected to the supporting top seat by bolts. A limiting frame is provided at the top of the installation top cover, a supporting circular plate is provided on the limiting frame, a spline groove is provided at the middle position of the supporting circular plate, and a first tension spring is provided at the bottom of the supporting circular plate.

[0011] In at least some embodiments, a spline shaft is provided at the position near the top end of the second valve stem. A connecting circular plate is provided on the second valve stem, and the connecting circular plate is located at the connection position between the second valve stem and the spline shaft. The first tension spring is sleeved on the spline shaft, and both ends of the first tension spring are respectively connected to the connecting circular plate and the supporting circular plate. A docking head is provided at the bottom end of the second valve stem, and the docking head is located within the connecting sleeve.

[0012] In at least some embodiments, a fixing block is provided at the middle position of the bottom of the docking head. Two blocking blocks are provided at the bottom of the docking head, and the two blocking blocks are distributed in a centrally symmetric manner. Two limiting blocks are provided at the bottom of the docking head, and the two limiting blocks are distributed in a centrally symmetric manner. And the limiting blocks are rotatably connected to the docking head through pin shafts. Two restoring springs are provided on the fixing block, and the restoring springs are supported between the limiting blocks and the fixing block.

[0013] In at least some embodiments, four connecting frames are provided at the top of the rotating ring frame, and the four connecting frames are distributed in an annular array. And a fixing sleeve is provided at the central position of the four connecting frames. The fixing sleeve is sleeved on the upper first valve stem and is controlled by a locking bolt. A docking sleeve is provided at the top of the fixing sleeve. A ratchet tooth groove is provided on the inner peripheral surface of the docking sleeve. The docking head is arranged within the docking sleeve, and the limiting block is matched with the ratchet tooth groove. A limiting groove is provided on the inner periphery of the rotating ring frame, and the limiting groove is distributed in an annular array.

[0014] In at least some embodiments, two fixing bolts are provided at the bottom of the fixing sleeve frame, and the fixing sleeve frame is fixedly connected to the connecting sleeve through the fixing bolts. A rotating shaft is rotatably installed at the top of the fixing sleeve frame. A rotating disk is provided at the top end of the rotating shaft. Limiting columns are provided on the rotating disk, and the limiting columns are distributed in an annular array. And the limiting columns are matched with the limiting grooves. A missing gear is provided at the bottom end of the rotating shaft, and the missing gear is located within the fixing sleeve frame.

[0015] In at least some embodiments, connecting plates are provided on one side of each of the two positioning clamping plates, and the two connecting plates are distributed symmetrically. Two limiting round rods are provided on the relatively outer sides of the two connecting plates, and the limiting round rods are distributed symmetrically. Tooth plates are provided on the relatively inner sides of the two connecting plates, and the tooth plates are distributed in a centrally symmetric manner. A second tension spring is sleeved on the limiting round rod. The connecting plates are slidably installed within the fixing sleeve frame, and the limiting round rods slidably penetrate through the side wall of the fixing sleeve frame. And the tooth plates are meshed with the missing gear. Moreover, both ends of the second tension spring are respectively connected to the connecting plate and the side wall of the fixing sleeve frame.

[0016] The present invention provides a large-flow spherical regulating valve, which has the following beneficial effects: In the present invention, a first support ring and an adjusting ring are provided. When the sphere is rotated and adjusted, it contacts the sphere through the first support block and the rolling wheel. By the elastic action of the first compression spring, the right side of the sphere is supported. At the same time, the second support block and the limit sleeve are matched with each other, and by the elastic action of the second compression spring, the left side of the sphere can be stably supported. Through accurate positioning, the sphere can always be kept in the correct position, maintaining a good contact state of the sealing surface, thereby ensuring the stability of the sealing performance and preventing the problem of sealing failure caused by the deviation of the sphere.

[0017] In addition, during the opening process of the valve, manually press the handwheel downward to make the spline shaft slide along the spline groove. After the spline shaft disengages from the spline groove, then rotate the handwheel. When the opening process is completed or the valve is closed, by the rebounding and pulling action of the first tension spring, the handwheel is adjusted upward to restore the initial state, and the spline shaft is limited by the spline groove. Thus, by limiting the second valve stem, it can effectively prevent rotation due to accidental touch, ensure the stability of the fluid flow rate in the system, and maintain the continuity and stability of the production process.

[0018] In addition, through the cooperation of the joint and the docking sleeve, press the handwheel downward to make the joint slide and insert into the docking sleeve, and the bottom limit block can reach the ratchet slot position. When the handwheel is rotated clockwise, through the limitation of the limit block on the limit block, the limit block can be engaged with the ratchet slot, thereby driving the first valve stem and the sphere below to rotate, completing the opening and size regulation of the fluid flow rate. When the handwheel is rotated counterclockwise, due to the rebounding action of the restoring spring, the ratchet slot cannot engage with the limit block, and thus the sphere below cannot be rotated. Therefore, only by rotating in a single direction can the valve be opened. The operator does not need to think or judge different opening directions during operation, reducing the operation difficulty. Especially in an emergency or when the valve needs to be quickly operated, the operator can quickly respond and improve the operation efficiency.

[0019] In addition, during the opening and closing processes of the valve, through the cooperation of the rotating ring frame and the limit groove with the rotating disk and the limit post, the rotating ring frame and the rotating disk can be rotated simultaneously. By the meshing transmission of the deficient gear and the toothed plate, the two positioning clamping plates are controlled to adjust towards the middle. When the sphere is in the open or closed state, the positioning clamping plate can press the rubber ring of the first valve stem, ensuring that the opening or closing of the sphere is more stable. A stable sphere can make the flow channel of the fluid more smooth when passing through the valve, reducing the flow resistance loss and maintaining the continuity and stability of the production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly introduced below.

[0021] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0022] In the accompanying drawings: Figure 1 A schematic diagram showing the overall structure of the present application; Figure 2 A schematic diagram showing the structure of the valve body, connecting sleeve, casing and inner tube of the present application from a sectional view perspective; Figure 3 A schematic diagram showing the structure of the first support ring, second support ring and sphere of the present application; Figure 4 A schematic diagram showing the structure of the limit sleeve frame and the second support block in a disassembled state of the present application; Figure 5 A schematic diagram showing the structure of the mounting top cover, second valve stem and handwheel of the present application; Figure 6 A schematic diagram showing the structure of the mounting top cover of the present application; Figure 7 Shows the Figure 5 Schematic diagram of the enlarged part A in the present application; Figure 8 A schematic diagram showing the structure of the valve body and the connecting sleeve of the present application from a sectional view perspective; Figure 9 A schematic diagram showing the structure of the sphere, rotating ring frame, fixed sleeve frame and positioning clamping plate of the present application; Figure 10 A schematic diagram showing the structure of the rotating ring frame, fixed sleeve frame and positioning clamping plate in a disassembled state of the present application.

[0023] List of reference numerals: 1. Valve body; 101. Connecting sleeve; 102. Supporting top seat; 103. Sleeve; 104. Inner tube; 2. First support ring; 201. Adjusting ring; 202. Limit slide bar; 203. First compression spring; 204. First support block; 205. Rolling wheel; 3. Second support ring; 301. Limit sleeve frame; 302. Baffle; 303. Second support block; 304. Insert rod; 305. Second compression spring; 4. Sphere; 401. First valve stem; 402. Rubber ring; 5. Installation top cover; 501. Connecting seat; 502. Limit frame; 503. Supporting circular plate; 504. Spline groove; 505. First tension spring; 6. Second valve stem; 601. Spline shaft; 602. Connecting circular plate; 603. Docking head; 604. Fixed block; 605. Stop block; 606. Limit clamping block; 607. Recovery spring; 7. Rotating ring frame; 701. Connecting frame; 702. Fixed sleeve; 703. Docking sleeve; 704. Ratchet groove; 705. Limit groove; 8. Fixed sleeve frame; 801. Fixed bolt; 802. Rotating shaft; 803. Rotating disk; 804. Limit column; 805. Missing gear; 9. Positioning clamping plate; 901. Connecting plate; 902. Limit circular rod; 903. Tooth plate; 904. Second tension spring; 10. Hand wheel. Detailed implementation mode

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0025] Embodiment 1: Please refer to Figures 1 to 10 : The present invention provides a large-flow spherical regulating valve, including: a valve body 1, a connecting sleeve 101 is provided at the top of the valve body 1, a supporting top seat 102 is provided at the top of the connecting sleeve 101, sleeves 103 are provided on the left and right sides of the valve body 1, and the two sleeves 103 are distributed symmetrically left and right. An inner tube 104 is provided in the sleeve 103, and the inner tube 104 matches the valve seat inside the valve body 1; Inside the right sleeve 103, there is a first support ring 2; inside the left sleeve 103, there is a second support ring 3; inside the valve seat of the valve body 1, there is a sphere 4; above the support top seat 102, there is an installation top cover 5; on the installation top cover 5, a second valve stem 6 is rotatably installed through a bearing; inside the connecting sleeve 101, there is a rotating ring frame 7; inside the connecting sleeve 101, there is a fixed sleeve frame 8, and the fixed sleeve frame 8 is located below the rotating ring frame 7; inside the connecting sleeve 101, there are two positioning clamping plates 9, and the two positioning clamping plates 9 are distributed symmetrically, and the positioning clamping plates 9 correspond to the position of the fixed sleeve frame 8; at the top of the second valve stem 6, there is a handwheel 10.

[0026] In the embodiment of the present disclosure, as Figures 2 to 4 shown, on the left side of the first support ring 2, there is an adjusting ring 201. On the adjusting ring 201, there are two limit sliding rods 202, and the two limit sliding rods 202 are distributed in a parallel up-and-down manner, and the limit sliding rods 202 slidably penetrate through the first support ring 2. Between the first support ring 2 and the adjusting ring 201, there is a first compression spring 203. On the left side of the adjusting ring 201, there are two first support blocks 204, and the two first support blocks 204 are distributed symmetrically, and chamfers are provided on the edges of the first support blocks 204. On the first support blocks 204, rolling wheels 205 are rotatably installed, and the rolling wheels 205 are in rolling connection with the sphere 4; On the second support ring 3, there are two limit sleeve frames 301, and the two limit sleeve frames 301 are distributed symmetrically up and down. At the rear of the limit sleeve frame 301, there is a baffle 302. Inside the limit sleeve frame 301, a second support block 303 is slidably installed, and the second support block 303 is in contact with the sphere 4. At the rear of the second support block 303, there are two insertion rods 304, and the two insertion rods 304 are distributed symmetrically, and the insertion rods 304 slidably penetrate through the baffle 302. On the insertion rods 304, a second compression spring 305 is sleeved, and the second compression spring 305 is supported between the baffle 302 and the second support block 303. In the present invention, there is a first support ring 2 and an adjusting ring 201. When the sphere 4 is rotated and adjusted, through the contact of the first support blocks 204 and the rolling wheels 205 with the sphere 4, by the elastic action of the first compression spring 203, the right side of the sphere 4 is supported. At the same time, through the mutual cooperation of the second support block 303 and the limit sleeve frame 301, and by the elastic action of the second compression spring 305, the left side of the sphere 4 can be stably supported, and through accurate positioning, the sphere 4 can always be kept in the correct position.

[0027] In the embodiment of the present disclosure, as Figure 5 and Figure 6 shown, at the bottom of the installation top cover 5, there is a connecting seat 501, and the connecting seat 501 is fixedly connected to the support top seat 102 through bolts. At the top of the installation top cover 5, there is a limit frame 502. On the limit frame 502, there is a support circular plate 503. In the middle position of the support circular plate 503, there is a spline groove 504. At the bottom of the support circular plate 503, there is a first tension spring 505.

[0028] The second valve stem 6 is provided with a spline shaft 601 at the top position. A connecting circular plate 602 is provided on the second valve stem 6, and the connecting circular plate 602 is located at the connection position between the second valve stem 6 and the spline shaft 601. The first tension spring 505 is sleeved on the spline shaft 601, and both ends of the first tension spring 505 are respectively connected to the connecting circular plate 602 and the support circular plate 503. The bottom end of the second valve stem 6 is provided with a docking head 603, and the docking head 603 is located within the connecting sleeve 101. During the opening process of the valve, manually press down the handwheel 10 to make the spline shaft 601 slide along the spline groove 504. When the spline shaft 601 disengages from the spline groove 504, then rotate the handwheel 10. If the opening process is completed or the valve is closed, utilize the rebounding pulling effect of the first tension spring 505 to adjust the handwheel 10 upward to restore the initial state, and cooperate with the spline groove 504 to limit the spline shaft 601, thereby limiting the second valve stem 6 to effectively avoid rotation due to accidental contact.

[0029] In the embodiment of the present disclosure, as Figure 7 、 Figure 8 and Figure 10 shown, a fixing block 604 is provided at the middle position of the bottom of the docking head 603. Two blocking blocks 605 are provided at the bottom of the docking head 603, and the two blocking blocks 605 are distributed in a centrally symmetric manner. Two limiting blocks 606 are provided at the bottom of the docking head 603, and the two limiting blocks 606 are distributed in a centrally symmetric manner. And the limiting block 606 is rotatably connected to the docking head 603 through a pin shaft. Two restoring springs 607 are provided on the fixing block 604, and the restoring springs 607 are supported between the limiting block 606 and the fixing block 604; There are four connecting frames 701 provided at the top of the rotating ring frame 7, and the four connecting frames 701 are distributed in a circular array. A fixing sleeve 702 is provided at the central position of the four connecting frames 701. The fixing sleeve 702 is sleeved on the upper first valve rod 401 and is controlled by a locking bolt. A docking sleeve 703 is provided at the top of the fixing sleeve 702. A ratchet groove 704 is provided on the inner peripheral surface of the docking sleeve 703. The docking head 603 is arranged in the docking sleeve 703, and the limit block 606 is matched with the ratchet groove 704. In the present invention, through the mutual cooperation of the docking head 603 and the docking sleeve 703, when the hand wheel 10 is pressed downwards, the docking head 603 slides and inserts into the docking sleeve 703, and the bottom limit block 606 can reach the position of the ratchet groove 704. When the hand wheel 10 is rotated clockwise, through the limitation of the limit block 605 on the limit block 606, the limit block 606 can be engaged with the ratchet groove 704, thereby driving the lower first valve rod 401 and the sphere 4 to rotate, completing the opening and size regulation of the fluid flow. When the hand wheel 10 is rotated counterclockwise, due to the rebound effect of the return spring 607, the process of the ratchet groove 704 engaging with the limit block 606 cannot be realized, and thus the sphere 4 below cannot be rotated. Therefore, only by rotating in a single direction can the valve be opened.

[0030] Embodiment 2, on the basis of Embodiment 1, as Figures 8 to 10 shown, the first valve rods 401 are provided on the upper and lower sides of the sphere 4, and the first valve rods 401 are rotationally connected to the valve seat of the valve body 1 through bearings. A rubber ring 402 is provided on the upper first valve rod 401, and the rubber ring 402 is located in the connecting sleeve 101, and the rubber ring 402 is matched with the two positioning clamping plates 9; The inner circumference of the rotating ring frame 7 is provided with a limit groove 705, and the limit groove 705 is distributed in a circular array; Two fixing bolts 801 are provided at the bottom of the fixing sleeve frame 8, and the fixing sleeve frame 8 is fixedly connected to the connecting sleeve 101 through the fixing bolts 801. A rotating shaft 802 is rotatably installed at the top of the fixing sleeve frame 8. A rotating disk 803 is provided at the top of the rotating shaft 802. Positioning columns 804 are provided on the rotating disk 803, and the positioning columns 804 are distributed in a circular array, and the positioning columns 804 are matched with the limit groove 705. A missing gear 805 is provided at the bottom end of the rotating shaft 802, and the missing gear 805 is located inside the fixing sleeve frame 8; On one side of each of the two positioning clamping plates 9, there are connecting plates 901, and the two connecting plates 901 are distributed symmetrically. On the relatively outer sides of the two connecting plates 901, there are two limiting round rods 902, and the limiting round rods 902 are distributed symmetrically. On the relatively inner sides of the two connecting plates 901, there are toothed plates 903, and the toothed plates 903 are distributed centrosymmetrically. A second tension spring 904 is sleeved on the limiting round rod 902. The connecting plate 901 is slidably installed in the fixed sleeve 8, and the limiting round rod 902 slidably penetrates through the side wall of the fixed sleeve 8. Moreover, the toothed plate 903 is meshed and connected with the deficient gear 805. And the two ends of the second tension spring 904 are respectively connected with the connecting plate 901 and the side wall of the fixed sleeve 8. When opening and closing the valve, through the mutual cooperation of the rotating ring frame 7 and the limiting groove 705 with the rotating disc 803 and the limiting column 804, the rotating ring frame 7 and the rotating disc 803 can be rotated simultaneously. By using the meshing transmission of the deficient gear 805 and the toothed plate 903, the two positioning clamping plates 9 are controlled to adjust towards the middle. When the sphere 4 is in the open or closed state, the positioning clamping plate 9 can press the rubber ring 402 of the first valve stem 401, ensuring that the opening or closing of the sphere 4 is more stable. The stable sphere 4 can make the flow channel of the fluid smoother when passing through the valve.

[0031] Working principle of this embodiment: When in use, during the rotation adjustment of the sphere 4, the first support block 204 and the rolling wheel 205 are in contact with the sphere 4, and the elastic effect of the first compression spring 203 is used to support the right side of the sphere 4. At the same time, the second support block 303 and the limit sleeve 301 cooperate with each other, and the elastic effect of the second compression spring 305 is used to stably support the left side of the sphere 4. Through accurate positioning, the sphere 4 can always be kept in the correct position; during the opening process of the valve, manually press the handwheel 10 downward so that the spline shaft 601 slides along the spline groove 504. When the spline shaft 601 disengages from the spline groove 504, then rotate the handwheel 10. If the opening process is completed or the valve is closed, the first tension spring 505 is used to rebound and pull, so that the handwheel 10 is adjusted upward to restore the initial state, and the spline shaft 601 is limited by the spline groove 504, so that the second valve stem 6 is limited, which can effectively avoid rotation due to accidental touch; through the cooperation of the joint 603 and the joint sleeve 703, press the handwheel 10 downward so that the joint 603 is inserted into the joint sleeve 703, and the bottom limit block 606 can reach the position of the ratchet groove 704. When the handwheel 10 is rotated clockwise, through the limit of the stop block 605 on the limit block 606, the limit block 606 can be engaged with the ratchet groove 704, so as to drive the first valve stem 401 and the sphere 4 below to rotate, and complete the opening and size regulation of the fluid flow. When the handwheel 10 is rotated counterclockwise, due to the rebound of the return spring 607, the ratchet groove 704 cannot engage with the limit block 606, and thus the sphere 4 below cannot be rotated. Therefore, only rotate in a single direction to open the valve; when the valve is opened and closed, through the cooperation of the rotating ring 7 and the limit groove 705 with the rotating disk 803 and the limit post 804, the rotating ring 7 and the rotating disk 803 can be rotated simultaneously. The spur gear 805 and the toothed plate 903 are engaged to control the two positioning clamping plates 9 to adjust towards the middle. When the sphere 4 is in the open or closed state, the positioning clamping plate 9 can press the rubber ring 402 of the first valve stem 401 to ensure that the opening or closing of the sphere 4 is more stable. The stable sphere 4 can make the flow channel of the fluid smoother when passing through the valve.

[0032] The above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present disclosure can easily think of changes or substitutions, which should all be covered within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A large-flow spherical regulating valve, characterized in that, Comprising: A valve body (1), a connecting sleeve (101) is provided at the top of the valve body (1), a supporting top seat (102) is provided at the top of the connecting sleeve (101), sleeves (103) are provided on the left and right sides of the valve body (1), and the two sleeves (103) are distributed symmetrically left and right. An inner tube (104) is provided in the sleeve (103), and the inner tube (104) is matched with the valve seat inside the valve body (1); A first support ring (2) is provided in the right sleeve (103); a second support ring (3) is provided in the left sleeve (103); a sphere (4) is provided in the valve seat of the valve body (1); an installation top cover (5) is provided above the supporting top seat (102); a second valve rod (6) is rotatably installed on the installation top cover (5) through a bearing; a rotating ring frame (7) is provided in the connecting sleeve (101); a fixed sleeve frame (8) is provided in the connecting sleeve (101), and the fixed sleeve frame (8) is located below the rotating ring frame (7); two positioning clamping plates (9) are provided in the connecting sleeve (101), and the two positioning clamping plates (9) are distributed symmetrically, and the positioning clamping plates (9) correspond to the position of the fixed sleeve frame (8); a hand wheel (10) is provided at the top end of the second valve rod (6).

2. A large-flow spherical regulating valve according to claim 1, wherein A regulating ring (201) is provided to the left of the first support ring (2). Two limiting slide rods (202) are provided on the regulating ring (201), and the two limiting slide rods (202) are distributed parallel up and down. The limiting slide rods (202) slide through the first support ring (2). A first compression spring (203) is provided between the first support ring (2) and the regulating ring (201). Two first support blocks (204) are provided on the left side of the regulating ring (201), and the two first support blocks (204) are distributed symmetrically. Chamfers are provided on the edges of the first support blocks (204). A rolling wheel (205) is rotatably installed on the first support blocks (204), and the rolling wheel (205) is in rolling connection with the sphere (4).

3. A large-flow spherical regulating valve according to claim 1, wherein Two limiting sleeve frames (301) are provided on the second support ring (3), and the two limiting sleeve frames (301) are distributed symmetrically up and down. A baffle (302) is provided at the rear of the limiting sleeve frame (301). A second support block (303) is slidably installed in the limiting sleeve frame (301), and the second support block (303) is in contact with the sphere (4). Two inserting rods (304) are provided at the rear of the second support block (303), and the two inserting rods (304) are distributed symmetrically. The inserting rods (304) slide through the baffle (302). A second compression spring (305) is sleeved on the inserting rods (304), and the second compression spring (305) is supported between the baffle (302) and the second support block (303).

4. A large-flow spherical regulating valve according to claim 1, wherein The upper and lower sides of the sphere (4) are provided with a first valve stem (401), and the first valve stem (401) is rotatably connected to the valve seat of the valve body (1) through a bearing. A rubber ring (402) is provided on the upper first valve stem (401), and the rubber ring (402) is located within the connecting sleeve (101), and the rubber ring (402) matches two positioning clamping plates (9).

5. The large-flow spherical control valve according to claim 1, wherein The bottom of the installation top cover (5) is provided with a connecting seat (501), and the connecting seat (501) is fixedly connected to the supporting top seat (102) through bolts. The top of the installation top cover (5) is provided with a limiting frame (502), a supporting circular plate (503) is provided on the limiting frame (502), a spline groove (504) is provided at the middle position of the supporting circular plate (503), and a first tension spring (505) is provided at the bottom of the supporting circular plate (503).

6. The large-flow spherical control valve according to claim 1, wherein A spline shaft (601) is provided at the top position of the second valve stem (6). A connecting circular plate (602) is provided on the second valve stem (6), and the connecting circular plate (602) is located at the connection position of the second valve stem (6) and the spline shaft (601). The first tension spring (505) is sleeved on the spline shaft (601), and the two ends of the first tension spring (505) are respectively connected to the connecting circular plate (602) and the supporting circular plate (503). A docking head (603) is provided at the bottom end of the second valve stem (6), and the docking head (603) is located within the connecting sleeve (101).

7. The large-flow spherical control valve according to claim 6, wherein A fixing block (604) is provided at the middle position of the bottom of the docking head (603). Two blocking blocks (605) are provided at the bottom of the docking head (603), and the two blocking blocks (605) are distributed in a centrally symmetric manner. Two limiting blocks (606) are provided at the bottom of the docking head (603), and the two limiting blocks (606) are distributed in a centrally symmetric manner, and the limiting blocks (606) are rotatably connected to the docking head (603) through a pin shaft. Two restoring springs (607) are provided on the fixing block (604), and the restoring springs (607) are supported between the limiting blocks (606) and the fixing block (604).

8. The large-flow spherical control valve according to claim 1, wherein Four connecting frames (701) are provided at the top of the rotating ring frame (7), and the four connecting frames (701) are distributed in an annular array. A fixing sleeve (702) is provided at the central position of the four connecting frames (701). The fixing sleeve (702) is sleeved on the upper first valve stem (401) and is controlled by a locking bolt. A docking sleeve (703) is provided at the top of the fixing sleeve (702). A ratchet tooth groove (704) is provided on the inner peripheral surface of the docking sleeve (703). The docking head (603) is arranged within the docking sleeve (703), and the limiting block (606) matches the ratchet tooth groove (704). A limiting groove (705) is provided on the inner periphery of the rotating ring frame (7), and the limiting groove (705) is distributed in an annular array.

9. A large-flow spherical control valve according to claim 1, characterized in that two fixing bolts (801) are provided at the bottom of the fixing sleeve frame (8), and the fixing sleeve frame (8) is fixedly connected to the connecting sleeve (101) through the fixing bolts (801). A rotating shaft (802) is rotatably installed at the top of the fixing sleeve frame (8). A rotating disc (803) is provided at the top end of the rotating shaft (802). Positioning columns (804) are provided on the rotating disc (803), and the positioning columns (804) are distributed in an annular array. The positioning columns (804) are matched with the positioning grooves (705). A missing gear (805) is provided at the bottom end of the rotating shaft (802), and the missing gear (805) is located inside the fixing sleeve frame (8).

10. The large-flow spherical control valve according to claim 1, wherein , Two connecting plates (901) are provided on one side of the two positioning clamping plates (9), and the two connecting plates (901) are distributed symmetrically. Two limiting round rods (902) are provided on the relatively outer sides of the two connecting plates (901), and the limiting round rods (902) are distributed symmetrically. A toothed plate (903) is provided on the relatively inner sides of the two connecting plates (901), and the toothed plate (903) is distributed centrosymmetrically. A second tension spring (904) is sleeved on the limiting round rod (902). The connecting plate (901) is slidably installed inside the fixing sleeve frame (8), and the limiting round rod (902) slidably penetrates through the side wall of the fixing sleeve frame (8). The toothed plate (903) is meshed with the missing gear (805), and the two ends of the second tension spring (904) are respectively connected to the connecting plate (901) and the side wall of the fixing sleeve frame (8).

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