Filtering type high-strength anti-cracking gate valve

Abstract

The utility model relates to the technical field of valves, in particular to a filtering type high-strength anti-cracking gate valve which comprises a water inlet pipe, a water outlet pipe, a valve body, a gate plate, a positioning mechanism, a fixing mechanism and a driving piece, the water inlet pipe and the water outlet pipe are both communicated with the valve body, the positioning mechanism comprises a limiting ring and a base, the fixing mechanism is arranged on the valve body, and the gate plate is arranged on the base. The limiting ring is arranged on the fixing mechanism, the base is arranged at the end, away from the fixing mechanism, of the valve body, a guide block is arranged on the inner circumferential face of the limiting ring, a sliding groove is formed in the base, a guide groove is formed in one end of the gate plate, and the end, provided with the guide groove, of the gate plate is in sliding connection with the limiting ring. And the driving piece is arranged on the fixing mechanism and is used for driving the flashboard to move up and down. Through the positioning device, the problem that the flashboard is broken due to deformation of the flashboard can be avoided.

Description

Technical Field

[0001] The present application relates to the technical field of valves, and in particular to a filtering high-strength anti-cracking gate valve. Background Art

[0002] A gate valve is a gate plate of an opening and closing component. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened or fully closed. The gate valve is installed on a water pipeline or other fluid pipeline. When the fluid in the pipeline needs to be intercepted, the hand wheel is usually turned manually to lower the gate plate to achieve pipeline interception. In real life, in order to ensure the sealing and interception effect of the gate valve, the staff will turn the hand wheel again to tighten the valve that has been closed. This method can certainly achieve the effect of sealing and interception, but the valve is easy to be unable to open the next time it is opened, and the gate plate is easy to break when forced to turn, which reduces the service life of the gate plate.

[0003] A gate valve in the related technology, currently, a gate valve in a Chinese utility model patent application with a publication date of February 19, 2021 and a publication number of CN212564462U, includes a valve body, a gate plate, and a gate plate. A first opening is provided at the upper end of the valve body, a valve cover is provided on the first opening, the valve cover is provided on the valve body, the valve cover and the valve body form a cavity, a second opening is provided on the valve cover, an opening and closing device for driving the gate plate to move up and down is connected to the upper end of the gate plate, and two end surfaces of the gate plate and the valve body are respectively provided A valve seat is arranged, a material feeding port is opened on the valve seat, the valve seat is arranged on the valve body, an annular sealing channel for sealing the gate is formed between the two valve seats, an annular rubber block is arranged in the annular sealing channel, a through port is opened on the upper end of the annular rubber block, a stopper is arranged on the lower end of the valve seat, a sealing groove is formed between the two stops, the sealing groove is connected with the annular sealing channel, a V-shaped guide groove is opened on the upper surface of the annular rubber gasket, clearing channels are opened on both sides of the V-shaped guide groove on the two stops, and a guiding inclined surface is opened on the lower end of the gate.

[0004] However, this type of gate valve controls the up and down movement of the gate plate by driving a hand wheel to open or close the valve. The pressure of the medium in the channel directly acts on one side of the gate plate, which may cause the gate plate to deform. At this time, when the gate valve is closed, the bottom of the gate plate cannot be aligned with the predetermined position, which may cause the gate plate to break. Therefore, improvement is needed. Summary of the invention

[0005] The embodiment of the present application provides a filtering type high-strength anti-cracking gate valve, which can improve the technical problem of gate plate deformation causing gate plate fracture existing in the related art.

[0006] An embodiment of the present application provides a filtering high-strength anti-cracking gate valve, including an inlet pipe, an outlet pipe, a valve body, a gate plate, a positioning mechanism, a fixing mechanism and a driving member, wherein the inlet pipe and the outlet pipe are both connected to the valve body, the positioning mechanism includes a limiting ring and a base, the fixing mechanism is arranged on the valve body, the limiting ring is arranged on the fixing mechanism, the base is arranged on an end of the valve body away from the fixing mechanism, a guide block is arranged on the inner circumference of the limiting ring, a sliding groove is provided on the base, a guide groove is provided at one end of the gate plate, the end of the gate plate with the guide groove is slidably connected to the limiting ring, and the other end is slidably connected to the sliding groove, and the driving member is arranged on the fixing mechanism, and is used to drive the gate plate to move up and down.

[0007] The above-mentioned technical scheme in the embodiment of the present application has at least the following technical effects: one end of the gate plate is arranged in the slide groove, and when the user moves the gate plate up and down, it will not leave the slide groove even when it moves to the highest point. In this way, when the water flow pressure inside the gate valve acts on the gate plate, it will not cause the gate plate to bend, and it can move up and down along the slide groove to avoid the problem of the gate plate being deformed and causing the gate plate to break. At the same time, a guide groove is provided on the outside of the gate plate, and a guide block is provided on the inner circumference of the limit ring, which can ensure that the gate plate will only move up and down and will not rotate, so that no additional friction loss will be generated during the sealing process of the gate plate, and the service life of the gate plate can be effectively extended.

[0008] A filtering high-strength anti-cracking gate valve provided in an embodiment of the present application allows the gate plate to move up and down along the slide groove inside the positioning device without rotating, thereby avoiding the problem of the gate plate being deformed and causing the gate plate to break. At the same time, no additional friction loss will be generated during the sealing process of the gate plate, which can effectively extend the service life of the gate plate. A filtering baffle is arranged at the water inlet to enhance the filtering performance of the gate valve.

[0009] In some embodiments, the positioning mechanism also includes a positioning block, a connecting bolt and a sealing ring. The sealing ring is arranged at one end of the base close to the gate plate. The connecting bolt and the positioning block are both arranged in a slide groove. One end of the connecting bolt abuts against one end of the positioning block. The positioning block is provided with a positioning groove at one end away from the connecting bolt.

[0010] In some embodiments, the fixing mechanism includes a valve cover, a rolling bearing and a sealing plate. The valve cover is arranged on the valve body, a channel is opened inside the valve cover, the limit ring is arranged on the valve cover, the rolling bearing is arranged on the end of the valve cover away from the valve body, the sealing plate is arranged on the valve cover and blocks the channel, and the driving member is connected to the gate plate through the channel.

[0011] In some embodiments, the driving member is a driving rod, a threaded hole is provided on the gate plate, an external thread is provided on the driving rod, one end of the driving rod is fixedly connected to the inner ring of the rolling bearing, and the end of the driving rod with the external thread is threadedly connected to the gate plate.

[0012] In some embodiments, a rotating handle is provided at one end of the driving rod away from the gate plate, the rotating handle is coaxially connected to the driving rod, and the rotating handle is provided with anti-slip grooves.

[0013] In some embodiments, a filter baffle is provided on the inner circumferential surface of one end of the water inlet pipe away from the gate plate, and the filter baffle is fixedly connected to the water inlet pipe.

[0014] In some embodiments, a flange is provided at one end of the water inlet pipe and the water outlet pipe away from the valve body, and a plurality of flange holes are provided on the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a self-sealing high-temperature and high-pressure stop valve provided in an embodiment of the present application;

[0017] Figure 2 A schematic diagram of the internal structure of a self-sealing high-temperature and high-pressure stop valve provided in an application embodiment;

[0018] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0019] Figure 4 A schematic diagram of the gate and limit ring structure of a self-sealing high-temperature and high-pressure stop valve provided in an embodiment of the application;

[0020] Figure 5 A schematic diagram of the rolling bearing structure of a self-sealing high-temperature and high-pressure stop valve provided in an application embodiment.

[0021] Among them, the reference numerals in the figure are:

[0022] 100, water inlet pipe; 200, water outlet pipe; 300, valve body; 400, gate; 410, guide groove; 420, threaded hole; 510, limit ring; 511, guide block; 520, base; 521, slide groove; 530, positioning block; 531, positioning groove; 540, connecting bolt; 550, sealing ring; 610, valve cover; 620, rolling bearing; 630, sealing plate; 640, channel; 710, drive rod; 720, rotating handle; 800, filter baffle; 910, flange; 920, flange hole. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0025] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0026] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 application.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In this application, "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships; for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] It should be noted that, in the present application, words such as "in some embodiments", "exemplarily", "for example", etc. are used to indicate examples, illustrations or descriptions. Any embodiment or design described in the present application as "in some embodiments", "exemplarily", "for example" should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "in some embodiments", "exemplarily", "for example", etc. is intended to present related concepts in a concrete way, meaning that specific features, structures or characteristics described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the above words in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0030] A gate valve is a gate plate of an opening and closing component. The movement direction of the gate plate is perpendicular to the direction of the fluid. The gate valve can only be fully opened or fully closed. The gate valve is installed on a water pipeline or other fluid pipeline. When the fluid in the pipeline needs to be intercepted, the hand wheel is usually turned manually to lower the gate plate to achieve pipeline interception. In real life, in order to ensure the sealing and interception effect of the gate valve, the staff will turn the hand wheel again to tighten the valve that has been closed. This method can certainly achieve the effect of sealing and interception, but the valve is easy to be unable to open the next time it is opened, and the gate plate is easy to break when forced to turn, which reduces the service life of the gate plate.

[0031] However, this type of gate valve controls the up and down movement of the gate plate by driving a hand wheel to open or close the valve. The pressure of the medium in the channel directly acts on one side of the gate plate, which may cause the gate plate to deform. At this time, when the gate valve is closed, the bottom of the gate plate cannot be aligned with the predetermined position, which may cause the gate plate to break. Therefore, improvement is needed.

[0032] Based on this, in order to improve the problem of gate plate deformation causing gate plate breakage in the related art, the embodiment of the present application provides the following solution.

[0033] Please also read Figures 1 to 5The embodiment of the present application provides a filtering high-strength anti-cracking gate valve, including an inlet pipe 100, an outlet pipe 200, a valve body 300, a gate plate 400, a positioning mechanism, a fixing mechanism and a driving member, the inlet pipe 100 and the outlet pipe 200 are both connected to the valve body 300, the positioning mechanism includes a limit ring 510 and a base 520, the fixing mechanism is arranged on the valve body 300, the limit ring 510 is arranged on the fixing mechanism, the base 520 is arranged on one end of the valve body 300 away from the fixing mechanism, a guide block 511 is arranged on the inner circumferential surface of the limit ring 510, a slide groove 521 is provided on the base 520, a guide groove 410 is provided at one end of the gate plate 400, one end of the gate plate 400 with the guide groove 410 is slidably connected to the limit ring 510, and the other end is slidably connected to the slide groove 521, and the driving member is arranged on the fixing mechanism for driving the gate plate 400 to move up and down.

[0034] As can be seen from the above, one end of the gate plate 400 is arranged in the slide groove 521. When the user moves the gate plate 400 up and down, it will not leave the slide groove 521 when it moves to the highest point. In this way, when the water flow pressure inside the gate valve acts on the gate plate 400, it will not cause the bottom of the gate plate 400 to bend. It can move up and down along the slide groove 521 to prevent the gate plate 400 from bending at the bottom and being unable to move to the predetermined position when closed, resulting in the gate plate 400 being broken when the gate plate 400 is forcibly closed. At the same time, a guide groove 410 is provided on the outside of the gate plate 400, and a guide block 511 is provided on the inner circumference of the limit ring 510, which can ensure that the gate plate 400 will only move up and down and will not rotate, so that no additional friction loss will be generated during the sealing process of the gate plate 400, and the service life of the gate plate 400 can be effectively extended.

[0035] In some embodiments, please refer to Figures 1 to 5 In some embodiments, the positioning mechanism further includes a positioning block 530, a connecting bolt 540 and a sealing ring 550. The sealing ring 550 is arranged at one end of the base 520 close to the gate plate 400. The connecting bolt 540 and the positioning block 530 are both arranged in the slide groove 521. One end of the connecting bolt 540 abuts against one end of the positioning block 530. A positioning groove 531 is opened at one end of the positioning block 530 away from the connecting bolt 540.

[0036] With such arrangement, when the gate plate moves up and down, the movement of the gate plate 400 can be limited by the positioning block 530 arranged in the slide groove 521, thereby preventing the gate plate 400 from colliding with the valve body 300 during movement and causing the gate plate 400 to crack. At the same time, the arrangement of the sealing ring 550 can enhance the sealing performance of the positioning mechanism and prevent water leakage when the gate plate 400 is closed. At the same time, if the positioning block 530 is damaged, the connecting bolt 540 can be unscrewed, and the positioning block 530 can be directly taken out at this time, so that the positioning block 530 can be replaced, saving costs.

[0037] Optionally, see Figures 1 to 5 The fixing mechanism includes a valve cover 610, a rolling bearing 620 and a sealing plate 630. The valve cover 610 is arranged on the valve body 300. A channel 640 is opened inside the valve cover 610. The limit ring 510 is arranged on the valve cover 610. The rolling bearing 620 is arranged on one end of the valve cover 610 away from the valve body 300. The sealing plate 630 is arranged on the valve cover 610 and blocks the channel 640. The driving member passes through the channel 640 and is transmission-connected to the gate 400.

[0038] In this way, the limit ring 510 is set on the valve cover 610, which can limit the movement of the gate plate 400 on the one hand, and enhance the sealing of the gate valve on the other hand. At the same time, paint can be filled in the channel 640 to enhance the lubrication performance. The setting of the sealing plate 630 can prevent the paint from leaking.

[0039] In some embodiments, see Figures 1 to 5 The driving member is a driving rod 710, a threaded hole 420 is provided on the gate plate 400, an external thread is provided on the driving rod 710, one end of the driving rod 710 is fixedly connected to the inner ring of the rolling bearing 620, and one end of the driving rod 710 with the external thread is threadedly connected to the gate plate 400.

[0040] In this arrangement, the drive rod 710 and the gate plate 400 are threadedly connected, and one end of the drive rod 710 is fixedly connected to the inner ring of the rolling bearing 620, so that the drive rod 710 can only rotate, while the gate plate 400 cannot rotate, thereby driving the gate plate 400 to move up and down, so that no additional friction loss is generated during the sealing process of the gate plate 400, and the service life of the gate plate 400 can be effectively extended.

[0041] Optionally, see Figures 1 to 5 A rotating handle 720 is provided at one end of the driving rod 710 away from the gate plate 400. The rotating handle 720 is coaxially connected to the driving rod 710 and has anti-slip grooves.

[0042] With such a configuration, the driving rod 710 will rotate under the action of the rotating handle 720, thereby driving the gate plate 400 to rise or fall, making it convenient to open or close the gate valve. At the same time, anti-slip grooves are provided on the surface of the rotating handle 720 to increase the friction between the user's palm and the rotating handle 720 to prevent sliding.

[0043] Optionally, see Figures 1 to 5 A filter baffle 800 is disposed on the inner circumferential surface of one end of the water inlet pipe 100 away from the gate plate 400 , and the filter baffle 800 is fixedly connected to the water inlet pipe 100 .

[0044] In this way, through the setting of the filter baffle 800, impurities in the water can be filtered, and the impurities can be effectively prevented from passing through the filter baffle 800 and entering the inside of the gate valve, thereby playing a role in filtering impurities.

[0045] Optionally, see Figures 1 to 5 A flange 910 is provided at one end of the water inlet pipe 100 and the water outlet pipe 200 away from the valve body 300 , and a plurality of flange holes 920 are provided on the flange 910 .

[0046] In this configuration, the flange 910 is welded and fixed to the water inlet pipe 100 and the water outlet pipe 200, and a plurality of flange holes 920 are provided on the flange 910 to facilitate the connection of the water inlet pipe 100 and the water outlet pipe 200 with external pipelines for drainage and gas transmission.

[0047] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A filter-type high-strength anti-cracking gate valve, characterized in that: The invention comprises a water inlet pipe (100), a water outlet pipe (200), a valve body (300), a gate plate (400), a positioning mechanism, a fixing mechanism and a driving member, wherein the water inlet pipe (100) and the water outlet pipe (200) are both in communication with the valve body (300), the positioning mechanism comprises a limiting ring (510) and a base (520), the fixing mechanism is arranged on the valve body (300), the limiting ring (510) is arranged on the fixing mechanism, and the base (520) is arranged at a position far from the valve body (300). A guide block (511) is provided on the inner circumference of the limit ring (510) at one end away from the fixing mechanism, a slide groove (521) is provided on the base (520), a guide groove (410) is provided on one end of the gate plate (400), one end of the gate plate (400) provided with the guide groove (410) is slidably connected to the limit ring (510), and the other end is slidably connected to the slide groove (521), and the driving member is provided on the fixing mechanism for driving the gate plate (400) to move up and down.

2. A filter-type high-strength anti-cracking gate valve according to claim 1, characterized in that: The positioning mechanism also includes a positioning block (530), a connecting bolt (540) and a sealing ring (550), wherein the sealing ring (550) is arranged at one end of the base (520) close to the gate plate (400), the connecting bolt (540) and the positioning block (530) are both arranged in a slide groove (521), one end of the connecting bolt (540) abuts against one end of the positioning block (530), and a positioning groove (531) is provided at one end of the positioning block (530) away from the connecting bolt (540).

3. A filter-type high-strength anti-cracking gate valve according to claim 2, characterized in that: The fixing mechanism comprises a valve cover (610), a rolling bearing (620) and a sealing plate (630); the valve cover (610) is arranged on the valve body (300); a channel (640) is opened inside the valve cover (610); the limiting ring (510) is arranged on the valve cover (610); the rolling bearing (620) is arranged on one end of the valve cover (610) away from the valve body (300); the sealing plate (630) is arranged on the valve cover (610) and blocks the channel (640); the driving member passes through the channel (640) and is transmission-connected to the gate plate (400).

4. A filter-type high-strength anti-cracking gate valve according to any one of claims 1 to 3, characterized in that: The driving member is a driving rod (710), a threaded hole (420) is provided on the gate plate (400), an external thread is provided on the driving rod (710), one end of the driving rod (710) is fixedly connected to the inner ring of the rolling bearing (620), and one end of the driving rod (710) provided with the external thread is threadedly connected to the gate plate (400).

5. A filter-type high-strength anti-cracking gate valve according to claim 4, characterized in that: A rotating handle (720) is provided at one end of the driving rod (710) away from the gate plate (400), the rotating handle (720) is coaxially connected to the driving rod (710), and anti-slip grooves are provided on the rotating handle (720).

6. A filter-type high-strength anti-cracking gate valve according to claim 5, characterized in that: A filtering baffle (800) is provided on the inner circumferential surface of one end of the water inlet pipe (100) away from the gate plate (400), and the filtering baffle (800) is fixedly connected to the water inlet pipe (100).

7. A filter-type high-strength anti-cracking gate valve according to claim 6, characterized in that: A flange (910) is provided at one end of the water inlet pipe (100) and the water outlet pipe (200) away from the valve body (300), and a plurality of flange holes (920) are provided on the flange (910).

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