High-strength wear-resistant valve sealing device

Abstract

The utility model relates to a high-strength wear-resistant valve sealing device, which belongs to the technical field of valves, and comprises a valve body, a valve cover and a hand wheel, one side of the valve cover is fixedly arranged on one side of the valve body through a bolt, a sealing mechanism is arranged between the valve body and the inner side of the valve cover, and the hand wheel is arranged on the valve cover. One side of the sealing mechanism is connected with one side of the hand wheel; the sealing mechanism comprises a driving assembly which is installed on one side of the hand wheel and sequentially penetrates through the valve deck and the valve body, and one side of the driving assembly is connected with a transmission assembly located on the inner side of the valve body and a hinge assembly connected to the transmission assembly. According to the high-strength wear-resistant valve sealing device, a pair of sealing devices can be provided, so that the situation that water seepage occurs when the valve rod is abraded is avoided, the sealing effect is remarkably improved, the using effect of a valve is improved, and water resource waste caused by the situation that water seepage occurs is avoided; therefore, the sealing effect of the existing high-strength wear-resistant valve is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a high-strength wear-resistant valve sealing device. Background Art

[0002] High-strength wear-resistant valve is a special type of valve with very high strength and wear resistance. It can operate stably for a long time in harsh environments such as high pressure, high temperature, high flow and particulate matter. This valve is usually made of high-strength materials such as stainless steel, cemented carbide, ceramics, etc. to ensure that it has excellent wear resistance, corrosion resistance and high temperature resistance under harsh working conditions.

[0003] The design and manufacture of high-strength wear-resistant valves need to consider multiple factors, such as valve structure, sealing performance, friction coefficient, service life, etc. In terms of structure, high-strength wear-resistant valves usually adopt streamlined design to reduce fluid resistance and valve wear. In terms of sealing performance, this type of valve usually adopts carbide sealing rings or ceramic sealing rings to improve sealing performance and extend service life.

[0004] High-strength wear-resistant valves are widely used in petroleum, chemical, electric power, metallurgy and other industries to control the flow and pressure of high-pressure gas, liquid, steam and other media. Due to their extremely high wear resistance and corrosion resistance, they can operate stably for a long time in harsh environments, so they are widely welcomed and used.

[0005] Existing high-strength and wear-resistant valve sealing devices are generally improved to address the problems that the threaded area of ​​the valve stem is easily worn and will be affected by the impact force along with the valve core. For example, the authorized Chinese patent CN211202918U discloses a valve with a high-strength and high-wear-resistant valve stem, which can reduce the wear of the valve stem threaded area by using a fan-shaped reinforcement plate, a valve body, a connecting pipe, a first internal threaded area, an inlet pipe, a first flange, an outlet pipe, a second flange, a support rod, a valve cover, a first circular through groove, a second internal threaded area, a third internal threaded area, a handwheel, a valve stem, an external threaded area, a first annular rotating block, a second annular rotating block, a valve core, a conical solid block, a second circular through groove, a first annular groove, and a second annular groove. The valve stem is rotatably connected to the valve core through two annular rotating blocks, so that the valve stem only generates a downward thrust and does not need to be affected by the side impact force of the water flow, thereby improving the strength of the valve stem and reducing wear.

[0006] However, in actual use, the high-strength wear-resistant valve sealing device in the above-cited document realizes the lifting and lowering of the valve stem through the cooperation between the thread and the screw, and then drives the valve plate to move up and down to complete the opening and closing of the valve. However, after long-term use, due to the wear of the thread, problems arise in the cooperation between the valve stem and the valve housing, resulting in water seepage, which affects the sealing effect of the valve, reduces the efficiency of use, and also causes unnecessary waste of fluid. Therefore, a high-strength wear-resistant valve sealing device is needed to solve the above problems. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the utility model provides a high-strength wear-resistant valve sealing device, which has the advantages of being able to effectively improve the sealing effect of existing high-strength wear-resistant valves, and solves the problem of poor sealing effect of existing high-strength wear-resistant valves.

[0009] (II) Technical solution

[0010] In order to achieve the above-mentioned purpose of effectively improving the sealing effect of the existing high-strength wear-resistant valve, the utility model provides the following technical solutions: a high-strength wear-resistant valve sealing device, comprising a valve body, a valve cover and a hand wheel, one side of the valve cover is fixedly mounted on one side of the valve body by bolts, a sealing mechanism is installed between the valve body and the inner side of the valve cover, and one side of the sealing mechanism is connected to one side of the hand wheel;

[0011] The sealing mechanism comprises a driving assembly installed on one side of the hand wheel and sequentially passing through the valve cover and the valve body, one side of the driving assembly is connected to a transmission assembly located inside the valve body and a hinge assembly connected to the transmission assembly, one side of the hinge assembly is connected to a valve core that slides in contact with the inside of the valve body, the outside of the valve core is connected to two groups of auxiliary moving assemblies that are mirror-symmetrical, and an outlet pipe for discharging water is installed on one side of the valve body;

[0012] The handwheel is connected to the hinge assembly connected to the transmission assembly through the driving assembly. The handwheel drives the transmission assembly to rotate, thereby driving the hinge assembly to rotate, and the valve core moves accordingly. The auxiliary moving assembly follows the movement of the valve core.

[0013] Furthermore, the drive assembly includes a valve stem and a bearing support; one end of the valve stem is fixedly connected to one side of the handwheel, and the other end passes through the valve cover and the valve body in sequence and extends to the inner side of the bearing support and is rotatably connected to the bearing support through a bearing, and one side of the bearing support is fixedly connected to the inner wall of the valve body.

[0014] Furthermore, a rotary sealing wheel is fixedly installed between the outer side of the valve stem and the inner sides of the valve body and the valve cover respectively.

[0015] Furthermore, the transmission assembly includes a driving bevel gear, a driven bevel gear and a rotating rod; one side of the driving bevel gear is fixedly connected to an end of the valve stem away from the hand wheel, and both ends of the rotating rod are rotatably connected to the inner wall of the valve body through bearings;

[0016] The hand wheel drives the valve stem to rotate, so as to drive the driven bevel gear meshed with the driving bevel gear to rotate, and the rotating rod rotates accordingly, and the hinge assembly rotates following the rotating rod.

[0017] Furthermore, the hinge assembly includes a No. 1 hinge rod, a No. 2 hinge rod and a hinge seat; the inner side of one end of the No. 1 hinge rod is fixedly connected to the outer side of the rotating rod, and the inner side of the other end is hinged to one end of the No. 2 hinge rod through a pin shaft, and the other end of the No. 2 hinge rod is hinged to the inner side of the hinge seat through a pin shaft, and the hinge seat is fixedly connected to the center of one side of the valve core.

[0018] Furthermore, an adjusting groove is provided on the inner wall of the valve body.

[0019] Furthermore, the auxiliary moving assembly includes a fixed block, a sliding rod and an adjusting block; the opposite sides of the two fixed blocks are fixedly installed on the inner wall of the adjusting groove by bolts, and the two ends of the sliding rod are fixedly connected to the opposite sides of the two fixed blocks, the inner side of the adjusting block is slidably connected to the outer side of the sliding rod and slides in close proximity, and the opposite sides of the two adjusting blocks are fixedly connected to the outer side of the valve core, and the two adjusting blocks are distributed in a mirror-symmetrical manner.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a high-strength wear-resistant valve sealing device, which has the following beneficial effects:

[0022] The high-strength wear-resistant valve sealing device can provide a sealing device through the mutual cooperation between the valve cover, hand wheel and sealing mechanism on the valve body, so as to avoid water seepage when the valve stem is worn, significantly improve the sealing effect, thereby improving the use effect of the valve, avoiding the waste of water resources caused by water seepage, and extending the service life, thereby effectively improving the sealing effect of the existing high-strength wear-resistant valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A part;

[0025] Figure 3 for Figure 1 A partial enlarged schematic diagram of the middle B part;

[0026] Figure 4 for Figure 3 A three-dimensional schematic diagram of the connection structure of the middle adjustment block.

[0027] In the figure: 1 valve body, 2 valve cover, 3 hand wheel, 400 sealing mechanism, 4011 valve stem, 4012 bearing support, 4021 driving bevel gear, 4022 driven bevel gear, 4023 rotating rod, 4031 first hinge rod, 4032 second hinge rod, 4033 hinge seat, 404 valve core, 4051 fixing block, 4052 sliding rod, 4053 adjusting block, 406 adjusting groove, 407 outlet pipe. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-4 The utility model provides a technical solution: a high-strength wear-resistant valve sealing device, comprising a valve body 1, a valve cover 2 and a hand wheel 3, one side of the valve cover 2 is fixedly mounted on one side of the valve body 1 by bolts; a sealing mechanism 400 is installed between the inner sides of the valve body 1 and the valve cover 2, one side of the sealing mechanism 400 is connected to one side of the hand wheel 3;

[0030] By the mutual cooperation between the valve cover 2, the hand wheel 3 and the sealing mechanism 400 on the valve body 1, a sealing device can be provided, thereby avoiding water seepage when the valve stem is worn, significantly improving the sealing effect, thereby improving the use effect of the valve, avoiding water seepage and causing waste of water resources, extending the service life, and effectively improving the sealing effect of existing high-strength wear-resistant valves.

[0031] In this embodiment, the sealing mechanism 400 is used to provide a sealing device to prevent water seepage due to wear.

[0032] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the sealing mechanism 400 includes a driving assembly installed on one side of the hand wheel 3 and sequentially passing through the valve cover 2 and the valve body 1, one side of the driving assembly is connected to a transmission assembly located on the inner side of the valve body 1 and a hinge assembly connected to the transmission assembly, one side of the hinge assembly is connected to a valve core 404 that slides in contact with the inner side of the valve body 1, and the outer side of the valve core 404 is connected to two sets of auxiliary moving assemblies that are mirror-symmetrical, and an outlet pipe 407 for discharging water is installed on one side of the valve body 1;

[0033] The hand wheel 3 is connected to the hinge assembly connected to the transmission assembly through the driving assembly. The hand wheel 3 drives the transmission assembly to rotate, thereby driving the hinge assembly to rotate, and the valve core 404 moves accordingly, and the auxiliary moving assembly moves following the valve core 404.

[0034] It should be noted that the drive assembly includes a valve stem 4011 and a bearing support 4012; one end of the valve stem 4011 is fixedly connected to one side of the handwheel 3, and the other end passes through the valve cover 2 and the valve body 1 in sequence and extends to the inner side of the bearing support 4012 and is rotatably connected to the bearing support 4012 through a bearing. One side of the bearing support 4012 is fixedly connected to the inner wall of the valve body 1 so that the valve stem 4011 can be stably driven to rotate through the handwheel 3 to drive the transmission assembly to rotate.

[0035] It can be understood that a rotary seal is fixedly installed between the outer side of the valve stem 4011 and the inner sides of the valve body 1 and the valve cover 2 respectively, in order to prevent water from leaking out.

[0036] In addition, the transmission assembly includes a driving bevel gear 4021, a driven bevel gear 4022 and a rotating rod 4023; one side of the driving bevel gear 4021 is fixedly connected to an end of the valve stem 4011 away from the hand wheel 3, and both ends of the rotating rod 4023 are rotatably connected to the inner wall of the valve body 1 through bearings;

[0037] The hand wheel 3 drives the valve stem 4011 to rotate, so as to drive the driven bevel gear 4022 meshed with the driving bevel gear 4021 to rotate, and the rotating rod 4023 rotates accordingly, and the hinge assembly rotates with the rotating rod 4023, so as to stably drive the hinge assembly to move.

[0038] In this embodiment, the hinge assembly includes a hinge rod No. 1 4031, a hinge rod No. 2 4032 and a hinge seat 4033; the inner side of one end of the hinge rod No. 1 4031 is fixedly connected to the outer side of the rotating rod 4023, and the inner side of the other end is hinged to one end of the hinge rod No. 2 4032 through a pin shaft, and the other end of the hinge rod No. 2 4032 is hinged to the inner side of the hinge seat 4033 through a pin shaft, and the hinge seat 4033 is fixedly connected to the center of one side of the valve core 404 in order to drive the valve core 404 to move.

[0039] It should also be noted that an adjustment groove 406 is provided on the inner wall of the valve body 1 to facilitate the installation and sliding of the auxiliary moving component.

[0040] It should be further explained that the auxiliary moving assembly includes a fixed block 4051, a sliding rod 4052 and an adjusting block 4053; the opposite sides of the two fixed blocks 4051 are fixedly installed on the inner wall of the adjusting groove 406 by bolts, and the two ends of the sliding rod 4052 are fixedly connected to the opposite sides of the two fixed blocks 4051, and the inner side of the adjusting block 4053 is slidably connected to the outer side of the sliding rod 4052 and slides in close proximity, and the opposite sides of the two adjusting blocks 4053 are fixedly connected to the outer side of the valve core 404, and the two adjusting blocks 4053 are distributed in a mirror-symmetrical manner in order to stably support the valve core 404 for lifting and lowering.

[0041] The working principle of the above embodiment is:

[0042] When in use, the user connects the water inlet pipe to the valve body 1 through the flange disc, and connects the outlet pipe 407 to the valve body 1 through the flange. When the valve needs to be opened, the user turns the hand wheel 3 counterclockwise by hand. At this time, the valve stem 4011 is driven to rotate under the rotation support of the bearing, and the driven bevel gear 4022 meshed with the active bevel gear 4021 is driven to rotate, and then the rotating rod 4023 is driven to rotate under the rotation support of the bearing. Since one end of the first hinged rod 4031 is fixed to the outer side of the rotating rod 4023, when the rotating rod 4023 is turned, the valve stem 4011 is driven to rotate under the rotation support of the bearing. When the rod 4023 rotates, one end of the No. 1 hinged rod 4031 drives the No. 2 hinged rod 4032 to move in a circular motion with the axis of the rotating rod 4023 as the axis. Since the No. 2 hinged rod 4032 is connected to the valve core 404 through the hinge seat 4033, when the No. 2 hinged rod 4032 moves, it drives the hinge seat 4033 to move vertically under the action of the hinge, and drives the valve core 404 to move upward, so that the valve core 404 can be opened, and the water flows out through the outlet pipe 407. When the valve needs to be closed, the valve can be closed by reverse operation according to the above principle.

[0043] Compared with the prior art: the high-strength wear-resistant valve sealing device, through the mutual cooperation between the valve cover 2, the hand wheel 3 and the sealing mechanism 400 on the valve body 1, can provide a sealing device, so as to avoid water seepage when the valve stem is worn, and significantly improve the sealing effect, thereby improving the use effect of the valve, avoiding the waste of water resources caused by water seepage, and extending the service life, thereby effectively improving the sealing effect of the existing high-strength wear-resistant valve, and solving the problem of poor sealing effect of the existing high-strength wear-resistant valve.

[0044] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0045] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-strength wear-resistant valve sealing device, comprising a valve body (1), a valve cover (2) and a hand wheel (3), wherein one side of the valve cover (2) is fixedly mounted on one side of the valve body (1) by bolts, and characterized in that: A sealing mechanism (400) is installed between the valve body (1) and the inner side of the valve cover (2), and one side of the sealing mechanism (400) is connected to one side of the hand wheel (3); The sealing mechanism (400) comprises a driving assembly installed on one side of the hand wheel (3) and passing through the valve cover (2) and the valve body (1) in sequence; one side of the driving assembly is connected to a transmission assembly located on the inner side of the valve body (1) and a hinge assembly connected to the transmission assembly; one side of the hinge assembly is connected to a valve core (404) that slides in contact with the inner side of the valve body (1); the outer side of the valve core (404) is connected to two groups of auxiliary moving assemblies that are mirror-symmetrical; and an outlet pipe (407) for discharging water is installed on one side of the valve body (1); The hand wheel (3) is connected to the hinge assembly connected to the transmission assembly through the driving assembly. The hand wheel (3) drives the transmission assembly to rotate, thereby driving the hinge assembly to rotate, and the valve core (404) moves accordingly. The auxiliary moving assembly follows the movement of the valve core (404).

2. A high-strength wear-resistant valve sealing device according to claim 1, characterized in that: The driving assembly comprises a valve stem (4011) and a bearing support (4012); one end of the valve stem (4011) is fixedly connected to one side of the hand wheel (3), and the other end passes through the valve cover (2) and the valve body (1) in sequence and extends to the inner side of the bearing support (4012) and is rotatably connected to the bearing support (4012) through a bearing, and one side of the bearing support (4012) is fixedly connected to the inner wall of the valve body (1).

3. A high-strength wear-resistant valve sealing device according to claim 2, characterized in that: A rotating seal is fixedly mounted between the outer side of the valve stem (4011) and the inner sides of the valve body (1) and the valve cover (2).

4. A high-strength wear-resistant valve sealing device according to claim 2, characterized in that: The transmission assembly comprises a driving bevel gear (4021), a driven bevel gear (4022) and a rotating rod (4023); one side of the driving bevel gear (4021) is fixedly connected to an end of the valve stem (4011) away from the hand wheel (3), and both ends of the rotating rod (4023) are rotatably connected to the inner wall of the valve body (1) via bearings; The hand wheel (3) drives the valve stem (4011) to rotate, thereby driving the driven bevel gear (4022) meshed with the driving bevel gear (4021) to rotate, and the rotating rod (4023) rotates accordingly, and the hinge assembly rotates following the rotating rod (4023).

5. A high-strength wear-resistant valve sealing device according to claim 4, characterized in that: The hinge assembly includes a hinge rod No. 1 (4031), a hinge rod No. 2 (4032) and a hinge seat (4033); the inner side of one end of the hinge rod No. 1 (4031) is fixedly connected to the outer side of the rotating rod (4023), and the inner side of the other end is hinged to one end of the hinge rod No. 2 (4032) through a pin shaft, and the other end of the hinge rod No. 2 (4032) is hinged to the inner side of the hinge seat (4033) through a pin shaft, and the hinge seat (4033) is fixedly connected to the center of one side of the valve core (404).

6. A high-strength wear-resistant valve sealing device according to claim 1, characterized in that: An adjustment groove (406) is provided on the inner side wall of the valve body (1).

7. A high-strength wear-resistant valve sealing device according to claim 6, characterized in that: The auxiliary moving assembly comprises a fixed block (4051), a sliding rod (4052) and an adjusting block (4053); the opposite sides of the two fixed blocks (4051) are fixedly mounted on the inner wall of the adjusting groove (406) by bolts, the two ends of the sliding rod (4052) are fixedly connected to the opposite sides of the two fixed blocks (4051), the inner side of the adjusting block (4053) is slidably connected to the outer side of the sliding rod (4052) and slides in close proximity, the opposite sides of the two adjusting blocks (4053) are fixedly connected to the outer side of the valve core (404), and the two adjusting blocks (4053) are distributed in a mirror-symmetrical manner.

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