High-performance two-piece type groove-free knife gate valve

Abstract

The utility model discloses a high-performance two-piece type groove-free knife gate valve, and relates to the technical field of valves, the high-performance two-piece type groove-free knife gate valve comprises a U-shaped gate plate, a sealing assembly is installed on the outer surface of the U-shaped gate plate, and a cleaning assembly is arranged on the surface of the U-shaped gate plate. The valve body A and the valve body B are provided with the U-shaped flashboard, the mounting groove is formed in the surface, making contact with the U-shaped flashboard, of the valve body A, and the U-shaped sealing ring is mounted on the surface, making contact with the U-shaped flashboard, of the valve body A, so that the leakage problem at the valve body connecting position and the connecting position of the valve body and the flashboard is solved, and the sealing performance of the valve is effectively improved; the filler is tightly pressed through the pressing ring fixed to the bottom of the pressing plate, and the scraping plates are arranged on the two sides of the U-shaped gate plate in the valve body, so that medium sediment is prevented from being accumulated in a middle cavity of the valve body, the valve is prevented from being blocked due to medium residues in the using process, and the practicability of the valve is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve technical field, concretely is high performance two piece type no recess knife gate valve. BACKGROUND

[0002] In numerous industrial scenes, such as petroleum chemical industry, water supply and drainage, heat supply and the like, pipeline system is responsible for transmission of various different media, and valve, as a key component for controlling the flow of these media, needs to ensure reliable sealing under different working conditions to prevent medium leakage.

[0003] The applicant finds that the Chinese patent discloses "high performance no recess knife gate valve", and the publication (announcement) number is "CN 219493105 U". The patent mainly through, the valve seat and the valve plate that sets up on the valve seat, the upper end of the valve seat is equipped with the movable hole, the valve plate can slip in the movable hole, the hole wall of the movable hole is equipped with the packing groove, the packing groove is equipped with the sealing packing, the valve plate is connected with the driving rod, the driving source in proper order, the driving rod is connected with the driving source, the U-shaped groove is equipped in the valve seat, the U-shaped groove is located at the downside of the valve seat, and the movable hole is arranged opposite, the U-shaped groove is equipped with the U-shaped sealing strip, the U-shaped sealing strip can be deformed, the position of the U-shaped sealing strip corresponds with the position of the valve plate, the U-shaped groove is equipped with the limit convex strip, and the limit convex strip extends along the extension direction of the U-shaped groove, and the utility model can be good in sealing performance, long in service life, but for this, we propose high performance two piece type no recess knife gate valve. SUMMARY

[0004] The utility model discloses a high performance two piece type no recess knife gate valve.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: high performance two piece type no recess knife gate valve, including U type gate plate, the outer surface of U type gate plate is installed with sealing assembly, the surface of U type gate plate is provided with cleaning assembly.

[0006] The sealing assembly includes A valve body, B valve body, valve body sealing ring and U-shaped sealing ring, the A recess is equipped at the junction of A valve body and B valve body, the valve body sealing ring is arranged in the inside of A recess, the installation groove is formed at the inside junction of A valve body and B valve body, the installation groove is in contact with U type gate plate, and the U-shaped sealing ring is arranged in the inside of installation groove.

[0007] As a further scheme of the utility model: the outside surface of A valve body and B valve body is penetrated with hole, the hole is installed with A screw, and one end of A screw is installed with A nut.

[0008] As a further scheme of the utility model: the cleaning assembly includes a pressing plate, a pressing ring, a filler and a scraper, the pressing ring is fixedly connected at the bottom of the pressing plate, the top of the A valve body and the B valve body is provided with a filling groove, the filler is arranged in the filling groove, the filler is located at the bottom of the pressing ring, the scraper is located in the A valve body and the B valve body, and the scraper is located at both sides of the U-shaped gate plate.

[0009] As a further scheme of the utility model: the both sides of the A valve body and the B valve body are provided with a guard plate through A screw, the top of the guard plate is provided with a connecting disc through A screw, and the connecting disc is connected with a copper nut through a one-way thrust ball bearing.

[0010] As a further scheme of the utility model: the top of the U-shaped gate plate is provided with a threaded rod, the other end of the threaded rod is connected with the copper nut, and the outer side of the copper nut is provided with a hand wheel.

[0011] As a further scheme of the utility model: one side of the copper nut is provided with a round nut, and the round nut is arranged on the outer side of the top end of the threaded rod.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model discloses a valve body and a gate plate are connected through an A groove and an A sealing ring, a filling groove is arranged at the top of the valve body, a filler is filled in the filling groove, a pressing ring is fixedly connected at the bottom of the pressing plate, a scraper is arranged at both sides of the U-shaped gate plate in the valve body, and the A valve body and the B valve body are fastened through A screw and A nut, so that the leakage problem of the valve body connecting portion and the valve body and the gate plate connecting portion is avoided, the sealing performance of the valve is effectively improved, and the stability and practicality during use are guaranteed.

[0014] 2. The utility model discloses a valve body and a gate plate are connected through an A groove and an A sealing ring, a filling groove is arranged at the top of the valve body, a filler is filled in the filling groove, a pressing ring is fixedly connected at the bottom of the pressing plate, a scraper is arranged at both sides of the U-shaped gate plate in the valve body, and the A valve body and the B valve body are fastened through A screw and A nut, so that the leakage problem of the valve body connecting portion and the valve body and the gate plate connecting portion is avoided, the sealing performance of the valve is effectively improved, and the stability and practicality during use are guaranteed.

[0015] Other advantages, objects and features of the utility model will be set forth in the subsequent description, and to some extent, will be apparent to those skilled in the art based on the following description, or can be taught from the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall schematic diagram in the embodiment of the utility model;

[0017] Figure 2A cross section schematic view in the embodiment of the utility model;

[0018] Figure 3 For Figure 2 A schematic view of the middle A;

[0019] Figure 4 For Figure 2 A schematic view of the middle B;

[0020] Figure 5 For Figure 2 A schematic view of the middle C;

[0021] Figure 6 A scraper schematic view in the embodiment of the utility model.

[0022] In the drawing: 1, U-shaped gate; 2, sealing assembly; 21, A valve body; 2101, A recess; 22, B valve body; 2201, installation groove; 23, valve body sealing ring; 24, U-shaped sealing ring; 25, A screw; 2501, A nut; 3, cleaning assembly; 31, pressing plate; 32, pressing ring; 33, filler; 34, scraper; 4, guard plate; 41, connecting disc; 42, one-way thrust ball bearing; 43, copper nut; 5, threaded rod; 51, hand wheel; 6, round nut. DETAILED DESCRIPTION

[0023] The specific embodiments of the utility model will be further described below in conjunction with the drawings, and it needs to be explained here that the description of these embodiments is used to help understanding the utility model, but does not constitute the limitation to the utility model.

[0024] In addition, the technical features involved in each embodiment of the utility model described below can be combined with each other as long as there is no conflict.

[0025] Please refer to the drawings Figure 1 - the drawings Figure 6The utility model discloses a high performance two-piece type no recess knife gate valve, including U type gate 1, the accurate adaptation installation of the outer surface of U type gate 1 has sealing assembly 2, and the surface both sides of U type gate 1 are provided with cleaning assembly 3 simultaneously, sealing assembly 2 covers A valve body 21, B valve body 22, valve body sealing ring 23 and U type sealing ring 24, wherein, the junction of A valve body 21 and B valve body 22 is processed and is equipped with A recess 2101, the size of this A recess 2101 is completely matched with valve body sealing ring 23, so that valve body sealing ring 23 can be closely and stably placed in the inside of A recess 2101, to form a reliable sealing barrier between A valve body 21 and B valve body 22, and the inside junction of A valve body 21 and B valve body 22 is provided with mounting groove 2201, this mounting groove 2201 contacts U type gate 1, and the mounting groove 2201 can completely wrap U type gate 1, and the mounting groove 2201 is also designed and is equipped with, the shape, size of this mounting groove 2201 and U type sealing ring 24 perfect fit, ensure that U type sealing ring 24 can be firmly placed in the inside of mounting groove 2201, to this in the junction of A valve body 21 and B valve body 22 and U type gate 1 constructs again a layer of efficient sealing structure, effectively prevent the leakage of medium.

[0026] In the embodiment, holes are penetrated through the outer side surfaces of the A valve body 21 and the B valve body 22, the holes are provided with A screws 25, one end of the A screw 25 is provided with an A nut 2501, the cleaning assembly 3 comprises a pressing plate 31, a pressing ring 32, a filler 33 and a scraper 34, the pressing ring 32 is fixedly connected to the bottom of the pressing plate 31, the top of the A valve body 21 and the B valve body 22 is provided with a filling groove, the filler 33 is arranged in the filling groove, the filler 33 is located at the bottom of the pressing ring 32, the scraper 34 is located in the A valve body 21 and the B valve body 22, and the scraper 34 is located at the two sides of the U type gate 1.

[0027] Specifically, a hole is provided on the outer surface of the A valve body 21 and the B valve body 22, which is used to install the A screw 25. After the A screw 25 passes through the hole on the outer surface of the A valve body 21 and the B valve body 22, an A nut 2501 is screwed on one end of the A screw 25. Through the cooperation of the A screw 25 and the A nut 2501, the A valve body 21 and the B valve body 22 can be tightly connected and fixed together, ensuring the stability of the overall structure of the valve and providing a structural basis for the sealing assembly 2 to play a good sealing role. At the same time, the cleaning assembly 3 includes a pressing plate 31, a pressing ring 32, a filler 33, and a scraper 34. The pressing ring 32 is firmly connected to the bottom of the pressing plate 31 by welding or other fixing methods. The top of the A valve body 21 and the B valve body 22 is provided with a filling groove, and the filler 33 is placed inside the filling groove, and the filler 33 is located directly below the pressing ring 32. When the pressing plate 31 is installed in place, the pressing ring 32 can exert downward pressure on the filler 33, making the filler 33 tightly fill in the filling groove and play a certain sealing and protection role. At the same time, inside the A valve body 21 and the B valve body 22, a scraper 34 is installed on both sides of the U-shaped gate 1. When the U-shaped gate 1 moves up and down, the scraper 34 can clean the surface of the U-shaped gate 1 and the corresponding position inside the valve body, preventing the accumulation of medium sediments in the valve body cavity and preventing the valve from being blocked due to medium residues.

[0028] In example two, the A valve body 21 and the B valve body 22 are installed with a guard plate 4 on both sides through the A screw 25. The top of the guard plate 4 is installed with a connecting disc 41 through the A screw 25. The connecting disc 41 is connected with a copper nut 43 through a one-way thrust ball bearing 42 inside. The top of the U-shaped gate 1 is installed with a threaded rod 5, and the other end of the threaded rod 5 is connected with the copper nut 43. The outer side of the copper nut 43 is installed with a hand wheel 51. One side of the copper nut 43 is installed with a round nut 6, which is sleeved outside the top end of the threaded rod 5.

[0029] Specifically, the A screw 25 passes through the corresponding mounting hole of the side surface of the A valve body 21 or the B valve body 22, and is screwed into the threaded hole on the guard plate 4, so as to fix the guard plate 4 on both sides of the A valve body 21 and the B valve body 22. On the top of the guard plate 4, the connecting disc 41 is also installed by the A screw 25, which passes through the mounting hole on the top of the guard plate 4 and is screwed into the threaded hole on the connecting disc 41, so as to realize the stable connection of the two. Inside the connecting disc 41, the one-way thrust ball bearing 42 is connected with the copper nut 43. The one-way thrust ball bearing 42 can make the copper nut 43 rotate smoothly in one direction inside the connecting disc 41, and provide support for the operation of the subsequent driving components. The threaded rod 5 is installed on the top of the U-shaped gate plate 1. One end of the threaded rod 5 is fixed to the top of the U-shaped gate plate 1, and the other end of the threaded rod 5 passes through the inner ring of the connecting disc 41 and the one-way thrust ball bearing 42 and is connected with the copper nut 43 through threaded cooperation. When the copper nut 43 rotates, it can drive the threaded rod 5 to move up and down, thereby realizing the lifting of the U-shaped gate plate 1. The hand wheel 51 is installed on the outside of the copper nut 43 and is fixedly connected with the copper nut 43. The operator can easily drive the copper nut 43 to rotate by rotating the hand wheel 51, so as to conveniently control the position of the U-shaped gate plate 1. The round nut 6 is installed on one side of the copper nut 43, is sleeved outside the top end of the threaded rod 5, and the threads of the round nut 6 match the external threads of the top end of the threaded rod 5. By tightening the round nut 6, the position of the copper nut 43 in the axial direction of the threaded rod 5 can be locked, preventing the copper nut 43 from moving axially during use, ensuring the stability and reliability of the valve driving structure, and ensuring the normal and stable operation of the valve.

[0030] Working principle:

[0031] First, when the valve needs to be opened, the operator rotates the hand wheel 51, the hand wheel 51 drives the copper nut 43 fixedly connected therewith to rotate in one direction in the connecting disc 41 through the one-way thrust ball bearing 42, since the copper nut 43 is screwed with the threaded rod 5, and the top of the threaded rod 5 is limited from axial movement by the round nut 6, when the copper nut 43 rotates, the threaded rod 5 will move upwards, thereby driving the U-shaped gate plate 1 fixed therewith to lift upwards, so that the medium can flow through the valve, when the valve needs to be closed, the hand wheel 51 is reversely rotated, the copper nut 43 is reversely rotated, the threaded rod 5 drives the U-shaped gate plate 1 to move downwards, until the U-shaped sealing ring 24 of the U-shaped gate plate 1 in contact with the A valve body 21 and the B valve body 22 is tightly attached, the valve body sealing ring 23 is in the A groove 2101 at the connecting position of the A valve body 21 and the B valve body 22, so that the sealing between the A valve body 21 and the B valve body 22 is ensured, the medium is prevented from leaking from the connecting position of the valve bodies, meanwhile, the U-shaped sealing ring 24 prevents the medium from leaking from the connecting position of the valve body and the gate plate, so that the sealing of the valve is realized, in the process of opening and closing the valve, the scraping plates 34 on both sides of the U-shaped gate plate 1 clean the surface of the U-shaped gate plate 1 and the corresponding positions inside the valve body, and the filler 33 in the filler groove at the top of the A valve body 21 and the B valve body 22 is compressed by the compression ring 32 at the bottom of the compression plate 31, so that a certain sealing and protection effect is achieved, the medium deposits are prevented from accumulating in the cavity of the valve body, thus the whole working process is completed.

[0032] The above-mentioned front, rear, left, right, top and bottom are based on the directions in the drawings Figure 1 as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application.

[0034] The embodiments of the present application are described in detail above in combination with the drawings, but the present application is not limited to the described embodiments.

[0035] For those skilled in the art, various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, and still fall within the scope of protection of the present application.

Claims

1. High performance two-piece recessless knife gate valve comprising a U-shaped gate (1), characterized in that: The outer surface of the U-shaped gate plate (1) is provided with a sealing assembly (2), and the surface of the U-shaped gate plate (1) is provided with a cleaning assembly (3); The sealing assembly (2) comprises an A valve body (21), a B valve body (22), a valve body sealing ring (23) and a U-shaped sealing ring (24), an A groove (2101) is arranged at the connection position of the A valve body (21) and the B valve body (22), the valve body sealing ring (23) is arranged in the A groove (2101), an installation groove (2201) is arranged at the inner connection position of the A valve body (21) and the B valve body (22), the installation groove (2201) is in contact with the U-shaped gate plate (1), and the U-shaped sealing ring (24) is arranged in the installation groove (2201).

2. The high performance two-piece recessless gate valve of claim 1, wherein: Holes are arranged in the outer surfaces of the A valve body (21) and the B valve body (22), the holes are provided with A screws (25), and one end of each A screw (25) is provided with an A nut (2501).

3. The high performance two-piece recessless gate valve of claim 1, wherein: The cleaning assembly (3) comprises a pressing plate (31), a pressing ring (32), a filler (33) and a scraper (34), the pressing ring (32) is fixedly connected to the bottom of the pressing plate (31), the top of each of the A valve body (21) and the B valve body (22) is provided with a filling groove, the filler (33) is arranged in the filling groove, the filler (33) is located at the bottom of the pressing ring (32), the scraper (34) is located in the A valve body (21) and the B valve body (22), and the scraper (34) is located on both sides of the U-shaped gate plate (1).

4. The high performance two-piece recessless gate valve of claim 1, wherein: The A valve body (21) and the B valve body (22) are provided with guard plates (4) on both sides through the A screws (25), the top of each guard plate (4) is provided with a connecting disc (41) through the A screw (25), and the connecting disc (41) is connected with a copper nut (43) through a one-way thrust ball bearing (42).

5. The high performance two-piece recessless gate valve of claim 1, wherein: A threaded rod (5) is arranged at the top of the U-shaped gate plate (1), the other end of the threaded rod (5) is connected with the copper nut (43), and a hand wheel (51) is arranged outside the copper nut (43).

6. The high performance two-piece recessless gate valve of claim 5, wherein: A round nut (6) is arranged on one side of the copper nut (43) and sleeved outside the top end of the threaded rod (5).

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