Low-abrasion high-sealing valve

Abstract

The utility model discloses a low-abrasion high-sealing valve which comprises a valve body and butt joint pipe bodies fixedly installed at the left end and the right end of the valve body. A circulation cavity is formed in the center of the interior of the valve body, and a wear-resisting bush is fixedly arranged in the center of the interior of the circulation cavity. Containing sliding grooves are formed in the outer ends of the butt joint pipe bodies which are symmetrically arranged, and sealing ring bodies are arranged in the symmetrically formed containing sliding grooves in a sliding mode. A positioning valve body is fixedly arranged at the center position of the upper end of the valve body, and an adjusting valve rod is rotationally arranged in the positioning valve body. According to the low-abrasion and high-sealing valve, the butt joint pipe body at the end of the valve body is connected with a medium pipeline, the abutting rotating ring drives the sealing ring body to improve the sealing effect, the lockable adjusting valve rod drives the blocking ball to be opened and closed in the abrasion-resistant lining, abrasion caused by long-term rotation can be relieved, and the sealing effect is improved. The service life of the valve body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve with low wear and high sealing performance. Background Technique

[0002] The ball valve in the valve refers to realizing the flow and cut-off of the medium by rotating the spherical structure arranged inside the valve body. It is necessary to closely fit between the valve body and the sphere to prevent the medium from leaking from the gap. However, the sphere that rotates for a long time wears with the valve body, and it is difficult to effectively avoid the sealing effect, thus affecting the transportation of the medium.

[0003] The utility model with the publication number of CN210318715U discloses a ball valve casting with low wear and corrosion resistance. Through the internally clamped retaining ring, the internal flow-limiting sealing effect is increased. Moreover, the rubber pad installed rotatably is closely attached to the adjusting component to realize the support for the adjusting component, reduce the direct contact area between the adjusting component and the valve body, reduce friction, and improve the service life. At the same time, when the device is connected to the pipeline, the sealing performance of the connection is greatly improved through the sealing rings on the surface and inside of the flange plate.

[0004] However, the ball valve with low wear still has the following problems in the actual use process: Although the tightness effect is improved by setting a rubber pad between the sphere and the valve body, the medium transported in the valve body usually has a certain degree of corrosiveness. It is difficult for the rubber sealing components to be in contact with the corrosive medium for a long time and are prone to hardening and other situations. Similarly, the sealing rings arranged at both ends of the valve body are difficult to ensure the sealing effect during long-term use, affecting the service life of the valve body.

[0005] Therefore, we propose a valve with low wear and high sealing performance to solve the problems raised above. Content of the Utility Model

[0006] The purpose of the utility model is to provide a valve with low wear and high sealing performance, aiming to solve the problem that although the tightness effect is improved by setting a rubber pad between the sphere and the valve body, the medium transported in the valve body usually has a certain degree of corrosiveness. It is difficult for the rubber sealing components to be in contact with the corrosive medium for a long time and are prone to hardening and other situations. Similarly, the sealing rings arranged at both ends of the valve body are difficult to ensure the sealing effect during long-term use, affecting the service life of the valve body.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A valve with low wear and high sealing performance, including a valve body, and butt joint pipe bodies fixedly installed at the left and right ends of the valve body; further including:

[0008] A flow cavity is opened at the central position inside the valve body, and a wear-resistant bushing is fixedly arranged at the central position inside the flow cavity;

[0009] The outer ends of the symmetrically arranged butt joint pipe bodies are each provided with a receiving chute, and sealing ring bodies are slidably arranged inside the symmetrically arranged receiving chutes;

[0010] Among them, a positioning valve body is fixedly arranged at the central position of the upper end of the valve body, and a regulating valve rod is rotatably arranged inside the positioning valve body.

[0011] Preferably, the flow cavity opened inside the valve body is connected in a penetrating manner with the butt joint pipe bodies fixedly connected to the left and right ends. A blocking sphere is rotatably arranged in the wear-resistant bushing inside the flow cavity, and a liquid discharge channel is opened at the central position inside the blocking sphere.

[0012] Preferably, the wear-resistant bushing inside the flow cavity is in close fit connection with the blocking sphere, and the upper and lower sides of the wear-resistant bushing are fixedly connected to the outer ends of the positioning arc plates in a left-right symmetric manner. The inner ends of the symmetrically arranged positioning arc plates are slidably arranged inside the blocking sphere, and the rotation of the blocking sphere is limited by the symmetrically arranged positioning arc plates, thereby preventing the blocking sphere from shifting.

[0013] Preferably, limiting bottom plates are fixedly arranged on the front and rear sides of the top end of the positioning valve body. The upper end of the regulating valve rod inside the positioning valve body is slidably fitted with an opening and closing valve plate. The opening and closing valve plate and the top end of the regulating valve rod are connected to each other through a resisting spring. The bottom surface of the opening and closing valve plate is in contact connection with the limiting bottom plates on the front and rear sides of the top surface of the positioning valve body, and the rotation of the opening and closing valve plate is limited by the limiting bottom plates.

[0014] Preferably, the bottom end of the regulating valve rod inside the positioning valve body is fixedly connected to the central position of the top surface of the blocking sphere inside the valve body. The rotation of the regulating valve rod drives the blocking sphere to rotate inside the valve body, and the rotating blocking sphere realizes the release and blocking of the medium through the liquid discharge channel opened inside.

[0015] Preferably, a resisting rotating ring is threadedly connected to the outer side of the inner end of the symmetrically arranged butt joint pipe bodies. Resisting sliding rods are slidably arranged at equal angles on the outer side of the resisting rotating ring. The outer ends of the resisting sliding rods arranged at equal angles are fixedly connected to the inner side of the sealing ring body. The rotation of the resisting rotating ring drives the resisting sliding rods and the sealing ring body to slide outward, so as to be in contact with the butt joint pipeline to achieve a sealing effect.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: For this valve with low wear and high sealing performance, the butt joint pipe bodies at the end of the valve body are connected to the medium pipeline. The sealing effect is improved by the resisting rotating ring driving the sealing ring body. The lockable regulating valve rod drives the blocking sphere to open and close in the wear-resistant bushing, which can slow down the wear caused by long-term rotation and improve the service life of the valve body. The specific content is as follows:

[0017] 1. Connect the valve body to the medium pipeline through the docking pipes at both the left and right ends. Place the conveying pipeline outside the docking pipes at both ends, and then thread-connect it to the docking pipes by rotating, so that the ends of the conveying pipeline and the docking pipes are in corresponding abutment;

[0018] Further, manually push against the rotating ring to move it outward towards the outside of the docking pipe. At the same time, the outer wall drives the slidably connected abutting slide rod to move outward, and the outer ends of the equally angled abutting slide rods drive the fixedly connected sealing ring body to slide outward inside the accommodating chute, so as to fill the connection between the conveying pipeline and the docking pipe with the sealing ring body, thereby enhancing the sealing effect of the docking;

[0019] 2. Lift the opening and closing valve plate upward to compress the abutting spring. Then, the bottom surface height of the opening and closing valve plate exceeds the height of the upper limiting bottom plate of the positioning valve body, so as to drive the regulating valve rod that is fitted and slidably connected at the inner end to rotate by the opening and closing valve plate. The limiting bottom plate is provided to prevent the opening and closing situation caused by accidental touch;

[0020] Further, the regulating valve rod drives the blocking sphere inside the flow cavity to rotate, so that the liquid discharge channel opened inside the blocking sphere communicates with the flow cavity, so that the medium can flow through the blocking sphere. The wear-resistant bushing sleeved outside the blocking sphere can reduce the wear caused by long-term rotation and improve the service life of the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the whole of the present utility model;

[0022] Figure 2 It is a schematic installation structure diagram of the opening and closing valve plate of the present utility model;

[0023] Figure 3 It is a schematic installation structure diagram of the wear-resistant bushing and the blocking sphere of the present utility model;

[0024] Figure 4 It is a schematic three-dimensional structure diagram of the blocking sphere of the present utility model;

[0025] Figure 5 It is a schematic three-dimensional structure diagram of the docking pipe of the present utility model;

[0026] Figure 6 It is a schematic installation structure diagram of the rotating ring of the present utility model.

[0027] In the figure: 1. Valve body; 2. Butt-jointed pipe body; 3. Flow cavity; 4. Wear-resistant bushing; 5. Accommodating slide groove; 6. Sealing ring body; 7. Positioning valve body; 8. Adjusting valve stem; 9. Blocking ball; 10. Liquid discharge channel; 11. Positioning arc plate; 12. Limiting bottom plate; 13. Opening and closing valve plate; 14. Resistance spring; 15. Resistance swivel; 16. Resistance slide rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the implementation regulations described are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figures 1-6 , the utility model provides the following technical solutions:

[0030] Embodiment 1: In order to solve the problems existing in the use of the existing valve body 1, this embodiment adopts the following technical scheme: a low-wear and high-sealing valve, including a valve body 1, and a butt joint body 2 fixedly installed on the left and right ends of the valve body 1; a flow cavity 3 is opened at the inner center position of the valve body 1, and the flow cavity 3 opened inside the valve body 1 and the butt joint bodies 2 fixedly connected on the left and right ends are interconnected, and the outer ends of the symmetrically arranged butt joint bodies 2 are opened with receiving grooves 5, and the insides of the symmetrically opened receiving grooves 5 are slidably provided with sealing ring bodies 6.

[0031] The outer side of the inner end of the symmetrically arranged butt joint body 2 is threadedly connected with a resistance swivel 15, and the outer side of the resistance swivel 15 is slidably provided with a resistance slide rod 16 at an equal angle, and the outer end of the resistance slide rod 16 set at an equal angle is fixedly connected to the inner side of the sealing ring body 6, and the rotation of the resistance swivel 15 drives the resistance slide rod 16 and the sealing ring body 6 to slide outward, so as to resist the butt joint pipe to achieve a sealing effect.

[0032] like Figure 1 , Figures 5-6 As shown, when the valve body 1 is used, it is first connected to the pipeline of the conveying medium through the butt joint bodies 2 at the left and right ends, and the conveying pipeline is placed outside the butt joint bodies 2 at the left and right ends, and then threadedly connected with the butt joint bodies 2 by rotating, so that the ends of the conveying pipeline and the ends of the butt joint bodies 2 are correspondingly abutted;

[0033] Further, manually rotate the contact rotating ring 15 threadedly connected to the outer end of the inner side of the docking pipe body 2, so that the threadedly connected contact rotating ring 15 moves towards the outside of the docking pipe body 2. At the same time, the outer wall thereof drives the slidably connected contact sliding rod 16 to move outwards, and the outer ends of the equally-angled contact sliding rods 16 drive the fixedly connected sealing ring body 6 to slide outwards inside the accommodation chute 5, so as to fill the connection between the conveying pipeline and the docking pipe body 2 through the sealing ring body 6, thereby improving the sealing effect of the docking.

[0034] Embodiment 2: To solve the problems existing in the use of the existing valve body 1, therefore, in this embodiment, through the following technical solutions, a wear-resistant bushing 4 is fixedly arranged at the central position inside the flow cavity 3, and a blocking sphere 9 is rotatably arranged in the wear-resistant bushing 4 inside the flow cavity 3, and a liquid discharge channel 10 is opened at the central position inside the blocking sphere 9; wherein, a positioning valve body 7 is fixedly arranged at the central position of the upper end of the valve body 1, and a regulating valve rod 8 is rotatably arranged inside the positioning valve body 7; the wear-resistant bushing 4 inside the flow cavity 3 and the blocking sphere 9 are mutually attached and connected, and the upper and lower sides of the wear-resistant bushing 4 are fixedly connected to the outer ends of the positioning arc plates 11 in a left-right symmetric manner, and the inner ends of the symmetrically arranged positioning arc plates 11 are both slidably arranged inside the blocking sphere 9, and the rotation of the blocking sphere 9 is limited by the symmetrically arranged positioning arc plates 11, thereby preventing the blocking sphere 9 from shifting.

[0035] Limit bottom plates 12 are fixedly arranged on both the front and rear sides of the top end of the positioning valve body 7, and an opening and closing valve plate 13 is slidably fitted at the upper end of the regulating valve rod 8 inside the positioning valve body 7, and the opening and closing valve plate 13 and the top end of the regulating valve rod 8 are mutually connected by a contact spring 14, and the bottom surface of the opening and closing valve plate 13 is attached to the limit bottom plates 12 on both the front and rear sides of the top surface of the positioning valve body 7, and at the same time, the rotation of the opening and closing valve plate 13 is limited by the limit bottom plates 12; the bottom end of the regulating valve rod 8 inside the positioning valve body 7 is fixedly connected to the central position of the top surface of the blocking sphere 9 inside the valve body 1, and the rotation of the regulating valve rod 8 drives the blocking sphere 9 to rotate inside the valve body 1, and the rotating blocking sphere 9 realizes the release and blocking of the medium through the internally opened liquid discharge channel 10.

[0036] As Figures 2-4As shown in the figure, when using the valve body 1, first, manually lift the opening and closing valve plate 13 upward to compress and resist the spring 14. After that, the bottom surface of the opening and closing valve plate 13 exceeds the limit bottom plate 12 arranged on the top surface of the positioning valve body 7. Then, rotate the opening and closing valve plate 13 to drive the regulating valve rod 8 which is fitted and slidably connected at the inner end to rotate synchronously. At the same time, the regulating valve rod 8 drives the blocking sphere 9 inside the flow cavity 3 to rotate, so that the liquid discharge channel 10 opened inside the blocking sphere 9 is communicated with the flow cavity 3, so that the medium can flow through the blocking sphere 9. The wear-resistant bushing 4 sleeved outside the blocking sphere 9 can reduce the wear caused by long-term rotation and improve the service life of the valve body 1.

[0037] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A low-wear and high-sealing valve, comprising a valve body (1), and a butt-joint pipe body (2) fixedly mounted on the left and right ends of the valve body (1); It is characterized in that Also includes: A flow cavity (3) is provided at the inner center of the valve body (1), and a wear-resistant bushing (4) is fixedly provided at the inner center of the flow cavity (3); The outer ends of the symmetrically arranged butt-joint pipe bodies (2) are each provided with a receiving slide groove (5), and a sealing ring body (6) is slidably arranged inside the symmetrically arranged receiving slide groove (5); A positioning valve body (7) is fixedly arranged at the center position of the upper end of the valve body (1), and an adjusting valve stem (8) is rotatably arranged inside the positioning valve body (7).

2. The low-wear and high-sealing valve according to claim 1, wherein: The flow cavity (3) provided inside the valve body (1) and the butt-joint pipe body (2) fixedly connected at the left and right ends are interconnected, and a blocking ball (9) is rotatably arranged in the wear-resistant bushing (4) inside the flow cavity (3), and a liquid discharge channel (10) is provided at the inner center position of the blocking ball (9).

3. A valve with low wear and high sealing according to claim 1, characterized in that: The wear-resistant bushing (4) and the blocking sphere (9) inside the circulation cavity (3) are fitted and connected to each other, and the upper and lower sides of the wear-resistant bushing (4) are fixedly connected to the outer end of the positioning arc plate (11) in a left-right symmetrical manner, and the inner ends of the symmetrically arranged positioning arc plates (11) are slidably arranged inside the blocking sphere (9), and the symmetrically arranged positioning arc plates (11) are used to limit the rotation of the blocking sphere (9), thereby preventing the blocking sphere (9) from deflecting.

4. A valve with low wear and high sealing according to claim 1, characterized in that: The top of the positioning valve body (7) is fixedly provided with a limiting bottom plate (12) on both sides, and the upper end of the regulating valve stem (8) inside the positioning valve body (7) is slidably engaged with an opening and closing valve plate (13), and the opening and closing valve plate (13) and the top of the regulating valve stem (8) are connected to each other via a resisting spring (14), and the bottom surface of the opening and closing valve plate (13) is closely connected to the limiting bottom plates (12) on both sides, and the rotation of the opening and closing valve plate (13) is limited by the limiting bottom plate (12).

5. A valve with low wear and high sealing according to claim 4, characterized in that: The bottom end of the regulating valve stem (8) inside the positioning valve body (7) is fixedly connected to the center position of the top surface of the blocking ball (9) inside the valve body (1), and the blocking ball (9) is driven to rotate inside the valve body (1) by the rotation of the regulating valve stem (8), and the rotating blocking ball (9) realizes the release and blocking of the medium through the discharge channel (10) opened inside.

6. The low-wear and high-sealing valve according to claim 1, wherein: The outer side of the inner end of the symmetrically arranged butt joint pipe body (2) is threadedly connected with a resisting swivel (15), and a resisting slide rod (16) is slidably arranged at an equal angle on the outer side of the resisting swivel (15), and the outer end of the resisting slide rod (16) arranged at an equal angle is fixedly connected to the inner side of the sealing ring body (6), and the rotation of the resisting swivel (15) drives the resisting slide rod (16) and the sealing ring body (6) to slide outward, so as to resist the butt joint pipe to achieve a sealing effect.

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