An eccentric full-bore ball valve with an asymmetric sealing structure

Abstract

This invention discloses an eccentric full-bore ball valve with an asymmetric sealing structure, comprising a valve body, with sealing mechanisms at both ends of the outer wall of the valve body. Two second flanges have second rubber gaskets tightly abutting against their outer walls, and the two second rubber gaskets are respectively fixed to the inner wall of a first flange. A pipe is installed at one end of the outer wall of each of the two second flanges, and the inner walls of the two pipes communicate with the inner wall of the valve body. This eccentric full-bore ball valve with an asymmetric sealing structure allows the second flange to abut tightly against the first and second rubber gaskets inside the first flange when the first and second flanges are connected, thus achieving a double seal and effectively preventing fluid leakage. Turning the handle causes the handle to rotate the circular plate and gear ring, which, through the sliding connection of the second slider and slide rail, allows the circular rod to rotate the vertical rod, which in turn drives the rotating shaft to rotate stably.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, in particular to an eccentric full-diameter ball valve with an asymmetric sealing structure. Background Art

[0002] Ball valve, the opening and closing part (ball) is driven by the valve stem and rotates around the axis of the ball valve. It can also be used for fluid regulation and control. The hard-sealed V-type ball valve has a strong shear force between the V-type ball core and the metal valve seat with hard alloy overlay, which is particularly suitable for media containing fibers, tiny solid particles, etc.

[0003] Although the existing ball valve can achieve the regulation and control of the liquid, there is a problem that when the existing ball valve is used, after being connected to the pipeline, the sealing performance will deteriorate after long-term use, thereby causing the problem of fluid leakage. Summary of the invention

[0004] The purpose of the present invention is to provide an eccentric full-diameter ball valve with an asymmetric sealing structure to solve the problem mentioned in the above background technology that when the existing ball valve is used and connected to the pipeline, the sealing performance will deteriorate after long-term use, thereby causing fluid leakage.

[0005] To achieve the above object, the present invention provides the following technical solution: an eccentric full-diameter ball valve with an asymmetric sealing structure, comprising a valve body, both ends of the outer wall of the valve body are provided with sealing mechanisms;

[0006] The sealing mechanism comprises a first flange, a first rubber pad, a second flange, a pipe and a second rubber pad;

[0007] The two first flanges are respectively installed on the two ends of the outer wall of the valve body, the inner walls of the two first flanges are fixedly connected with a first rubber pad at one end, the outer walls of the two first rubber pads are tightly fitted with the outer walls of the two second flanges at one end, the outer walls of the two second flanges are respectively matched with the inner walls of the two first flanges, the outer walls of the two second flanges are tightly fitted with a second rubber pad, the two second rubber pads are respectively fixed to the inner walls of the first flanges, and the outer walls of the two second flanges are installed with pipes at one end, and the inner walls of the two pipes are connected to the inner wall of the valve body.

[0008] Preferably, a rotating shaft is installed on the top of the valve body.

[0009] Preferably, both ends of the outer wall of the valve body are provided with docking mechanisms;

[0010] The docking mechanism comprises a disc, a gear ring, a gear and a bolt;

[0011] The inner walls of the two discs are respectively clearance-matched with the two ends of the outer wall of the valve body, and the inner walls of the two discs are rotatably connected to the two ends of the outer wall of the valve body through bearings. The outer walls of the discs are fixedly connected with gear rings, and the inner walls of the two gear rings are clearance-matched with the outer wall of the valve body. The inner walls of the gear rings are meshed and connected with multiple gears, and the inner walls of the multiple gears are fixedly connected with bolts, and the outer walls of the multiple bolts are rotatably connected to the first flange through bearings, and the outer walls of the multiple bolts are clearance-matched with the inner wall of the first flange, and the outer walls of the multiple bolts are threadedly connected to the threaded holes of the second flange.

[0012] Preferably, a plurality of handles are fixedly connected to the outer walls of the two gear rings.

[0013] Preferably, an anti-accidental touch mechanism is provided on the top of the valve body;

[0014] The anti-mistaken touch mechanism comprises a box body, a through slot, a round rod, a rotating disk, a vertical rod, a horizontal rod, a threaded sleeve and a screw;

[0015] The box body is fixedly connected to the top of the valve body, the inner wall of the box body is clearance matched with the outer wall of the rotating shaft, one end of the inner wall of the box body is processed with a through groove, the inner wall gap of the box body is clearance matched with a round rod, the outer wall of the round rod is rotatably connected to the inner wall of the box body through a bearing, a turntable is provided on the top of the round rod, the bottom of the turntable is fixedly connected to the top of the round rod, the outer wall gap of the round rod is clearance matched with a vertical rod, the outer wall of the vertical rod is clearance matched with the inner wall of the box body, the outer wall of the vertical rod is clearance matched with the inner wall of the rotating shaft, one end of the outer wall of the vertical rod is fixedly connected with a cross rod, the outer wall of the cross rod is slidably connected to the inner wall of the through groove, one end of the outer wall of the cross rod is fixedly connected with a threaded sleeve, the inner wall of the threaded sleeve is threadedly connected with a screw, and the screw is rotatably connected to one end of the outer wall of the box body through a bearing seat.

[0016] Preferably, a handle is fixedly connected to the bottom of the screw rod.

[0017] Preferably, both ends of the outer wall of the vertical rod are fixedly connected with a first sliding block, the outer walls of the two first sliding blocks are slidably connected with a first sliding groove, and the two first sliding grooves are respectively processed at both ends of the inner wall of the rotating shaft.

[0018] Preferably, a slide rail is processed on the front end surface of the vertical plate, and a second sliding block is slidably connected to the inner wall of the slide rail, and the second sliding block is fixedly connected to the front end surface of the outer wall of the round rod.

[0019] Compared with the prior art, the beneficial effect of the present invention is that the eccentric full-diameter ball valve with an asymmetric sealing structure, through the cooperation between the first rubber pad, the second rubber pad, the first flange and the second flange, when the first flange is docked with the second flange, the second flange can be tightly fitted with the first rubber pad and the second rubber pad inside the first flange, thereby performing double sealing, which can effectively avoid leakage of the fluid.

[0020] Through the cooperation among the handle, circular plate, gear ring and gear, the handle is turned, so that the handle drives the circular plate and gear ring to rotate. When the gear ring rotates, it can drive multiple gears and corresponding bolts to rotate at the first flange, and then drive the second flange to be docked with the first flange for installation, and can synchronously drive multiple bolts to rotate, so as to quickly make the second flange and the first flange threaded, which is convenient for the installation of the second flange and the first flange.

[0021] Through the cooperation between the screw, round rod, turntable and vertical rod, the handle can be turned so that the handle can drive the screw to rotate. When the screw rotates, the cross rod and the through groove are connected by sliding, driving the threaded sleeve, the cross rod and the vertical rod to rise on the outer wall of the round rod, so that the vertical rod drives the first sliding block to separate from the inner wall of the rotating shaft and the inner wall of the first sliding groove, and the connection is cancelled. When the turntable rotates accidentally, the turntable can only drive the vertical rod and the round rod to rotate by themselves, and cannot drive the rotating shaft to rotate, which can effectively avoid accidental touch and thus cause inconvenience.

[0022] Through the cooperation among the first slider, the first slide groove, the second slider and the slide rail, the first slider and the first slide groove are slidingly connected, so that the vertical rod can drive the rotating shaft to rotate stably, and the second slider and the slide rail are slidingly connected, so that the round rod can drive the vertical rod to rotate, and then the vertical rod can drive the rotating shaft to rotate stably. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the connection relationship of the present invention;

[0024] Figure 2 for Figure 1 Structural schematic diagram of the middle box body and the first flange, etc.;

[0025] Figure 3 for Figure 2 Structural schematic diagram of the first rubber pad, the second flange and the pipeline;

[0026] Figure 4 for Figure 2 Structural diagram of the valve body and box body;

[0027] Figure 5 for Figure 2 A schematic diagram of the structure of the first slider and the first chute;

[0028] Figure 6 for Figure 2 Schematic diagram of the structure of the threaded sleeve and handle, etc.

[0029] In the figure: 1. valve body, 2. rotating shaft, 3. handle, 4. first slide groove, 5. first slider, 6. slide rail, 7. sealing mechanism, 701. first flange, 702. first rubber pad, 703. second flange, 704. pipe, 705. second rubber pad, 8. docking mechanism, 801. disc, 802. gear ring, 803. gear, 804. bolt, 9. anti-accidental touch mechanism, 901. box body, 902. through groove, 903. round rod, 904. turntable, 905. vertical rod, 906. horizontal rod, 907. threaded sleeve, 908. screw, 10. second slider, 11. handle. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-6 The present invention provides a technical solution: an eccentric full-diameter ball valve with an asymmetric sealing structure, comprising a valve body 1, both ends of the outer wall of the valve body 1 are provided with a sealing mechanism 7, the sealing mechanism 7 comprises a first flange 701, a first rubber pad 702, a second flange 703, a pipe 704 and a second rubber pad 705, two first flanges 701 are respectively installed at both ends of the outer wall of the valve body 1, one end of the inner wall of the two first flanges 701 is fixedly connected with the first rubber pad 702, one end of the outer wall of the two first rubber pads 702 is respectively pressed against one end of the outer wall of the two second flanges 703, so that the first rubber pad 702 can be The first flange 701 and the second flange 703 are sealed for the first time, the outer walls of the two second flanges 703 are respectively matched with the inner walls of the two first flanges 701, the outer walls of the two second flanges 703 are tightly fitted with second rubber pads 705, the second rubber pads 705 are used to seal the first flange 701 and the second flange 703 for the second time, the two second rubber pads 705 are respectively fixed to the inner walls of the first flange 701, one end of the outer walls of the two second flanges 703 is installed with a pipe 704, the inner walls of the two pipes 704 are connected with the inner wall of the valve body 1, and the top of the valve body 1 is installed with a rotating shaft 2;

[0032] Through the cooperation among the first rubber pad, the second rubber pad, the first flange and the second flange, when the first flange is docked with the second flange, the second flange can be tightly fitted with the first rubber pad and the second rubber pad inside the first flange, thereby performing double sealing, which can effectively avoid leakage of the fluid.

[0033] Both ends of the outer wall of the valve body 1 are provided with a docking mechanism 8, which includes a disc 801, a gear ring 802, a gear 803 and a bolt 804. The inner walls of the two discs 801 are respectively matched with the two ends of the outer wall of the valve body 1 by clearance, and the inner walls of the two discs 801 are rotatably connected to the two ends of the outer wall of the valve body 1 through bearings, so that the disc 801 can rotate at the valve body 1. The outer walls of the discs 801 are fixedly connected with gear rings 802, so that the discs 801 can drive the gear rings 802 to rotate, and the inner walls of the two gear rings 802 are matched with the outer wall of the valve body 1 by clearance, and the inner walls of the gear rings 802 are meshed with each other. A plurality of gears 803 are connected, so that the gear ring 802 can drive the plurality of gears 803 to rotate, the inner walls of the plurality of gears 803 are fixedly connected with bolts 804, so that the gears 803 can drive the screw rod 804 to rotate, the outer walls of the plurality of bolts 804 are rotatably connected with the first flange 701 through bearings, the outer walls of the plurality of bolts 804 are clearance-matched with the inner wall of the first flange 701, the outer walls of the plurality of bolts 804 are threadedly connected with the threaded holes of the second flange 703, the outer walls of the two gear rings 802 are fixedly connected with a plurality of handles 3, and the handles 3 are used to drive the gear rings 802 to rotate;

[0034] Through the cooperation among the handle, circular plate, gear ring and gear, the handle is turned, so that the handle drives the circular plate and gear ring to rotate. When the gear ring rotates, it can drive multiple gears and corresponding bolts to rotate at the first flange, and then drive the second flange to be docked with the first flange for installation, and can synchronously drive multiple bolts to rotate, so as to quickly make the second flange and the first flange threaded, which is convenient for the installation of the second flange and the first flange.

[0035] The top of the valve body 1 is provided with an anti-accidental touch mechanism 9, which includes a box body 901, a through groove 902, a round rod 903, a rotating disk 904, a vertical rod 905, a horizontal rod 906, a threaded sleeve 907 and a screw 908. The box body 901 is fixed to the top of the valve body 1, and the inner wall of the box body 901 is gap-matched with the outer wall of the rotating shaft 2. A through groove 902 is processed at one end of the inner wall of the box body 901, and a round rod 903 is gap-matched with the inner wall of the box body 901. The outer wall of the round rod 903 is rotatably connected to the inner wall of the box body 901 through a bearing, so that the round rod 903 can be rotated at the box body 901, and a turntable 904 is provided on the top of the round rod 903, and the turntable 904 is used to drive the round rod 903 to rotate. The bottom of the turntable 904 is fixedly connected to the top of the round rod 903, and the outer wall gap of the round rod 903 is matched with a vertical rod 905, so that the vertical rod 905 can be lifted and lowered on the outer wall of the round rod 903, and the outer wall of the vertical rod 905 is matched with the inner wall gap of the box body 901, and the outer wall of the vertical rod 905 is matched with the inner wall gap of the rotating shaft 2, and one end of the outer wall of the vertical rod 905 is fixedly connected with a horizontal rod 9 06, the outer wall of the cross bar 906 is slidably connected to the inner wall of the through groove 902, one end of the outer wall of the cross bar 906 is fixedly connected with a threaded sleeve 907, the threaded sleeve 907 is used to drive the cross bar 906 to move up and down, the inner wall of the threaded sleeve 907 is threadedly connected with a screw 908, the screw 908 is used to drive the threaded sleeve 907 to move up and down, the screw 908 is rotatably connected to one end of the outer wall of the box body 901 through the bearing seat, the bottom of the screw 908 is fixedly connected with a handle 11, the handle 11 is used to drive the screw 908 to rotate, the vertical rod 905 Both ends of the outer wall are fixedly connected with first sliders 5, and the outer walls of the two first sliders 5 are slidably connected with first slide grooves 4, so that the first sliders 5 are slidably connected with the first slide grooves 4, so that the vertical rod 905 can drive the rotating shaft 2 to rotate, and the two first slide grooves 4 are respectively processed at both ends of the inner wall of the rotating shaft 2, and the front end surface of the vertical plate 905 is processed with a slide rail 6, and the inner wall of the slide rail 6 is slidably connected with a second slider 10, and the second slider 10 is fixedly connected to the front end surface of the outer wall of the round rod 903, so that the vertical rod 905 can perform stable lifting and lowering movements on the outer wall of the round rod 903;

[0036] Through the cooperation among the screw rod, the round rod, the turntable and the vertical rod, the handle can be turned so that the handle can drive the screw rod to rotate. When the screw rod rotates, the cross rod and the through groove are connected by sliding, driving the threaded sleeve, the cross rod and the vertical rod to rise on the outer wall of the round rod, so that the vertical rod drives the first sliding block to separate from the inner wall of the rotating shaft and the inner wall of the first sliding groove, canceling the connection, so that when the turntable rotates accidentally, the turntable can only drive the vertical rod and the round rod to rotate by themselves, and cannot drive the rotating shaft to rotate, which can effectively avoid accidental touch and cause inconvenience;

[0037] Through the cooperation among the first slider, the first slide groove, the second slider and the slide rail, the first slider and the first slide groove are slidingly connected, so that the vertical rod can drive the rotating shaft to rotate stably, and the second slider and the slide rail are slidingly connected, so that the round rod can drive the vertical rod to rotate, and then the vertical rod can drive the rotating shaft to rotate stably.

[0038] When the eccentric full-diameter ball valve with the asymmetric sealing structure is used, when the first flange 701 and the second flange 703 are connected, the second flange 703 can be tightly fitted with the first rubber pad 702 and the second rubber pad 705 inside the first flange 701, thereby performing double sealing, which can effectively avoid leakage of the fluid, and the handle 3 can be rotated so that the handle 3 drives the circular plate 801 and the gear ring 802 to rotate. When the gear ring 802 rotates, it can drive multiple gears 803 and corresponding bolts 804 to rotate at the first flange 701, thereby driving the second flange 701 to connect with the first flange 703 for installation, and synchronously driving multiple bolts 804 to rotate, thereby quickly connecting the second flange 701 and the first flange 703. 03 and the first flange 701 are threadedly corresponding to each other, which is convenient for the installation of the second flange 703 and the first flange 701, and the handle 11 can be rotated so that the handle 11 can drive the screw rod 908 to rotate. When the screw rod 908 rotates, it is connected by sliding through the cross bar 906 and the through groove 902, driving the threaded sleeve 907, the cross bar 906 and the vertical rod 905, etc., to rise on the outer wall of the round rod 903, so that the vertical rod 905 drives the first sliding block 5 to separate from the inner wall of the rotating shaft 2 and the inner wall of the first sliding groove 4, and cancels the connection, so that when the turntable 904 rotates accidentally, the turntable 904 can only drive the vertical rod 905 and the round rod 903 to rotate, and cannot drive the rotating shaft 2 to rotate, which can effectively avoid accidental touch and cause inconvenience.

[0039] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] In the present invention, unless otherwise clearly stipulated and limited, the terms "installation", "setting", "connection", "fixation", "screw-on" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An eccentric full-diameter ball valve with an asymmetric sealing structure, comprising a valve body (1), characterized in that: Sealing mechanisms (7) are provided at both ends of the outer wall of the valve body (1); The sealing mechanism (7) comprises a first flange (701), a first rubber pad (702), a second flange (703), a pipe (704) and a second rubber pad (705); The two first flanges (701) are respectively mounted on the two ends of the outer wall of the valve body (1); one end of the inner wall of the two first flanges (701) is fixedly connected with a first rubber pad (702); one end of the outer wall of the two first rubber pads (702) is respectively tightly fitted with one end of the outer wall of the two second flanges (703); the outer walls of the two second flanges (703) are respectively loosely matched with the inner walls of the two first flanges (701); the outer walls of the two second flanges (703) are respectively tightly fitted with a second rubber pad (705); the two second rubber pads (705) are respectively fixedly connected to the inner wall of the first flange (701); one end of the outer wall of the two second flanges (703) is installed with a pipe (704); the inner walls of the two pipes (704) are connected with the inner wall of the valve body (1); Both ends of the outer wall of the valve body (1) are provided with docking mechanisms (8); The docking mechanism (8) comprises a disc (801), a gear ring (802), a gear (803) and a bolt (804); The inner walls of the two disks (801) are respectively loosely matched with the two ends of the outer wall of the valve body (1); the inner walls of the two disks (801) are rotatably connected to the two ends of the outer wall of the valve body (1) via bearings; the outer walls of the disks (801) are fixedly connected with gear rings (802); the inner walls of the two gear rings (802) are loosely matched with the outer wall of the valve body (1); the inner walls of the gear rings (802) are meshedly connected with a plurality of gears (803); the inner walls of the plurality of gears (803) are fixedly connected with bolts (804); the outer walls of the plurality of bolts (804) are rotatably connected to the first flange (701) via bearings; the outer walls of the plurality of bolts (804) are loosely matched with the inner wall of the first flange (701); and the outer walls of the plurality of bolts (804) are threadedly connected to the threaded holes of the second flange (703); Multiple handles (3) are fixedly connected to the outer walls of the two gear rings (802); The top of the valve body (1) is provided with an anti-accidental touch mechanism (9); The anti-accidental-touch mechanism (9) comprises a box body (901), a through slot (902), a round rod (903), a rotating disk (904), a vertical rod (905), a horizontal rod (906), a threaded sleeve (907) and a screw rod (908); The box body (901) is fixedly connected to the top of the valve body (1); the inner wall of the box body (901) is gap-matched with the outer wall of the rotating shaft (2); a through groove (902) is processed at one end of the inner wall of the box body (901); a round rod (903) is gap-matched with the inner wall of the box body (901); the outer wall of the round rod (903) is rotatably connected to the inner wall of the box body (901) via a bearing; a rotating disk (904) is provided at the top of the round rod (903); the bottom of the rotating disk (904) is fixedly connected to the top of the round rod (903); the outer wall of the round rod (903) is gap-matched with a vertical A rod (905) is provided, wherein the outer wall of the vertical rod (905) is loosely matched with the inner wall of the box body (901), the outer wall of the vertical rod (905) is loosely matched with the inner wall of the rotating shaft (2), one end of the outer wall of the vertical rod (905) is fixedly connected to a cross rod (906), the outer wall of the cross rod (906) is slidably connected to the inner wall of the through groove (902), one end of the outer wall of the cross rod (906) is fixedly connected to a threaded sleeve (907), the inner wall of the threaded sleeve (907) is threadedly connected to a screw rod (908), and the screw rod (908) is rotatably connected to one end of the outer wall of the box body (901) through a bearing seat.

2. The eccentric full-diameter ball valve with an asymmetric sealing structure according to claim 1, characterized in that: A rotating shaft (2) is installed on the top of the valve body (1).

3. The eccentric full-diameter ball valve with an asymmetric sealing structure according to claim 1, characterized in that: A handle (11) is fixedly connected to the bottom of the screw rod (908).

4. The eccentric full-diameter ball valve with an asymmetric sealing structure according to claim 1, characterized in that: The outer walls of the vertical rod (905) are both fixedly connected with first sliding blocks (5), the outer walls of the two first sliding blocks (5) are both slidably connected with first sliding grooves (4), and the two first sliding grooves (4) are respectively machined at the two ends of the inner wall of the rotating shaft (2).

5. The eccentric full-diameter ball valve with an asymmetric sealing structure according to claim 1, characterized in that: The front end surface of the vertical rod (905) is processed with a slide rail (6), the inner wall of the slide rail (6) is slidably connected to a second slide block (10), and the second slide block (10) is fixedly connected to the front end surface of the outer wall of the round rod (903).

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