Instrument valve with quick opening and closing function

Abstract

The utility model relates to the technical field of instrument valves, and discloses an instrument valve with a quick opening and closing function, which comprises a valve seat, valve bodies are fixedly connected to two sides of the valve seat, a sealing column is fixedly connected to the top of the valve seat, an opening and closing assembly is arranged in the sealing column, and the opening and closing assembly comprises a pressing column. The pressing column is slidably connected into the sealing column, the bottom of the pressing column is fixedly connected with a sliding column, the outer wall of the sliding column is fixedly connected with a fixing ring, the bottom end of the sliding column is fixedly connected with a valve rod, and the bottom end of the valve rod is fixedly connected with a valve element. The outer operating shaft is stressed to drive the sliding shaft to horizontally slide in the connecting table, then the pressing column is pushed, finally, the valve rod pushes the valve element at the bottom end of the valve rod to close the interior of the valve seat, and the first spring pushes the fixing ring to enable the valve element to ascend to open the interior of the valve seat. Production stagnation or waiting time caused by slow action of the valve is avoided, and the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to instrument valve technical field especially instrument valve with quick opening and closing function. BACKGROUND

[0002] Instrument valve is a common device used for controlling fluid on-off, regulating flow and pressure in industrial production and instrument field. It plays a key role in fluid control link of various industrial scenes, such as chemical industry, power, metallurgy, etc., and laboratory instruments. In some scenes with low fluid control requirements and relatively stable working conditions, it still maintains certain application by virtue of its mature technology and low cost.

[0003] Instrument valve is mainly composed of valve body, valve seat, valve core, driving device and sealing element. The valve body is usually made of cast iron or ordinary carbon steel material, which has certain strength to withstand fluid pressure. The valve seat is generally made of rubber or metal, which is used to cooperate with the valve core to realize sealing. The valve core commonly has a plunger type, which controls fluid on-off by moving in the valve seat. The driving device is mostly a manual wheel disc or a simple electric device. The manual wheel disc relies on human power to rotate and operate, and the simple electric device is composed of an ordinary motor and simple transmission components such as gears and lead screws, which realizes the driving of the valve core. The sealing element adopts an ordinary rubber sealing ring, which is installed at the connection between the valve body and the valve seat, the valve core and the valve seat, etc., to prevent fluid leakage.

[0004] The manual wheel disc operation of the traditional instrument valve completely depends on human power, and the speed is limited by human strength and action frequency, which cannot respond quickly. The ordinary motor of the simple electric device has obvious delay in starting and stopping, and the transmission components such as gears and lead screws have simple structure, which causes large energy loss in the power transmission process, resulting in slow movement of the valve core. The cooperation between the valve core and the valve seat is not precise enough, and the friction is large, so a large resistance needs to be overcome when opening and closing. This slow opening and closing characteristic will cause serious influence in industrial scenes requiring quick response. In chemical production, the fluid flow cannot be adjusted in time, which leads to out-of-control reaction, affects product quality and even causes safety accidents; in safety protection system, the fluid cannot be quickly cut off, and once danger occurs, the accident cannot be stopped in time, which causes huge economic loss and safety hazard. INVENTION CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides an instrument valve with quick opening and closing function, which aims at improving the slow opening and closing of the traditional instrument valve, the inability to adjust fluid flow in time, the out-of-control reaction, the influence on product quality and even the safety accidents.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: the instrument valve with quick opening and closing function, including valve seat, the both sides fixed connection of valve seat have valve body, the top fixed connection of valve seat has sealing post, the inside of sealing post is provided with opening and closing subassembly,

[0007] The opening and closing subassembly includes a press column, the press column is slidably connected in the sealing post, the bottom of the press column is fixedly connected with a sliding column, the outer wall of the sliding column is fixedly connected with a fixed ring, the bottom end of the sliding column is fixedly connected with a valve rod, the bottom end of the valve rod is fixedly connected with a valve core, the outer wall of the sliding column is sleeved with a spring one, one end of the spring one is fixedly connected with the side wall of the fixed ring, the other end of the spring one is fixedly connected in the sealing post, the outer wall of the sliding column is fixedly connected with an elastic clamping plate, and the side wall of the sealing post is provided with a reset subassembly.

[0008] Further, the reset subassembly includes a connecting table, and the connecting table is fixedly connected to the side wall of the sealing post.

[0009] Further, an inner groove is formed in the connecting table, and a sliding shaft is slidably connected in the connecting table.

[0010] Further, the outer wall of the sliding shaft is fixedly connected with a side plate, and the side plate is slidably connected in the inner groove.

[0011] Further, the other end of the sliding shaft is fixedly connected with an outer operating shaft, and the outer wall of the sliding shaft is sleeved with a spring two.

[0012] Further, one end of the spring two is fixedly connected to the side wall of the side plate, and the other end of the spring two is fixedly connected in the connecting table.

[0013] The utility model has the advantages of:

[0014] 1. In the utility model, first, the outer operating shaft is stressed to drive the sliding shaft to slide horizontally in the connecting table, then the press column is pushed, and finally the valve rod pushes the valve core at the bottom end to close the inside of the valve seat. The elastic clamping plate is pushed out again through the spring one to drive the fixed ring, so that the valve core rises to open the inside of the valve seat. The production stagnation or waiting time caused by slow valve action is avoided, and the production efficiency is greatly improved. ACCURACY OF DRAWINGS

[0015] Figure 1 The utility model discloses the three-dimensional view of the instrument valve with quick opening and closing function;

[0016] Figure 2 The utility model discloses the sealing post structure schematic view of the instrument valve with quick opening and closing function;

[0017] Figure 3 The utility model discloses the three-dimensional view of the instrument valve with quick opening and closing function;Figure 2 Enlarged view of A in FIG.

[0018] Legend:

[0019] 1, valve seat; 2, valve body; 3, sealing column; 4, press column; 5, sliding column; 6, fixed ring; 7, spring one; 8, valve stem; 9, elastic clamping plate; 10, valve core; 11, connecting table; 12, inner groove; 13, sliding shaft; 14, side plate; 15, spring two; 16, outer operating shaft. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to 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 the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] With reference to Figures 1-3 An embodiment provided by the utility model: instrument valve with quick opening and closing function, including valve seat 1, both sides of valve seat 1 are fixedly connected with valve body 2, the top of valve seat 1 is fixedly connected with sealing column 3, and sealing column 3 is internally provided with opening and closing assembly;

[0022] Opening and closing assembly includes press column 4, press column 4 is slidably connected in sealing column 3, the bottom of press column 4 is fixedly connected with sliding column 5, the outer wall of sliding column 5 is fixedly connected with fixed ring 6, the bottom end of sliding column 5 is fixedly connected with valve stem 8, the bottom end of valve stem 8 is fixedly connected with valve core 10, spring one 7 is sleeved on the outer wall of sliding column 5, one end of spring one 7 is fixedly connected on the side wall of fixed ring 6, the other end of spring one 7 is fixedly connected in sealing column 3, the outer wall of sliding column 5 is fixedly connected with elastic clamping plate 9, sealing column 3 is provided with reset assembly including connecting table 11, connecting table 11 is fixedly connected on the side wall of sealing column 3, inner groove 12 is formed in the inside of connecting table 11, sliding shaft 13 is slidably connected in the inside of connecting table 11, the outer wall of sliding shaft 13 is fixedly connected with side plate 14, side plate 14 is slidably connected in the inside of inner groove 12, the other end of sliding shaft 13 is fixedly connected with outer operating shaft 16, spring two 15 is sleeved on the outer wall of sliding shaft 13, one end of spring two 15 is fixedly connected on the side wall of side plate 14, the other end of spring two 15 is fixedly connected in the inside of connecting table 11.

[0023] Specifically, when the valve core 10 needs to be pushed into the valve seat 1 to achieve the closing operation of the instrument valve, the operator first presses the outer operating shaft 16, which is connected to the sliding shaft 13. Under the action of external force, the outer operating shaft 16 transmits force to the sliding shaft 13, driving the sliding shaft 13 to slide inside the connecting table 11. One end of the sliding shaft 13 is in contact with the elastic clamping plate 9. With the sliding of the sliding shaft 13, it will exert a pushing force on the elastic clamping plate 9, causing the elastic clamping plate 9 to slide out of the clamping slot inside the sealing column 3, thus no longer limiting the sliding column 5. After the elastic clamping plate 9 is released from the limit, the push column 4 is then pushed. After the push column 4 is subjected to force, it slides vertically downward inside the sealing column 3. Since the sliding column 5 is connected to the push column 4, the sliding column 5 will displace synchronously with the push column 4. The valve stem 8 is connected below the sliding column 5. When the sliding column 5 displaces downward, it will further press down the valve stem 8. At the same time, the elastic clamping plate 9 on the side wall of the sliding column 5, driven by the sliding column 5, will be clamped into the corresponding clamping slot inside the connecting table 11 when it moves to a specific position inside the connecting table 11, thus fixing the positions of the sliding column 5 and the valve stem 8, enabling the valve stem 8 to stably push the valve core 10 at its bottom end to move towards the inside of the valve seat 1, and finally achieving the closing of the passage inside the valve seat 1. When the passage inside the valve seat 1 needs to be opened, the sliding shaft 13 is pushed again, which will push the elastic clamping plate 9 out again. The elastic clamping plate 9 is disengaged from the clamping slot of the connecting table 11. At this time, the spring 7 is in action. One end of the spring 7 is connected to the fixed ring 6, and the other end is connected to the relevant components. After the elastic clamping plate 9 is disengaged from the clamping slot, the spring 7 pushes the fixed ring 6 with its elastic force, thereby driving the connected components to make the valve core 10 rise, achieving the opening of the inside of the valve seat 1, effectively avoiding production stagnation or waiting time caused by slow valve action, and greatly improving production efficiency.

[0024] Working principle: When the valve core 10 needs to be pushed into the valve seat 1 to open and close the instrument valve, first press the outer operating shaft 16. After the outer operating shaft 16 is subjected to force, it drives the sliding shaft 13 to slide horizontally inside the connecting table 11. The sliding shaft 13 further pushes the elastic clamping plate 9, which slides out of the sealing column 3 and no longer limits the sliding column 5. Then push the push column 4. After the push column 4 is subjected to force, it slides vertically inside the sealing column 3. At this time, the sliding column 5 displaces synchronously with the push column 4 and further presses down the valve stem 8. At this time, the elastic clamping plate 9 on the side wall of the sliding column 5 will be clamped into the connecting table 11, causing the valve stem 8 to push the valve core 10 at its bottom end to close the inside of the valve seat 1. Pushing the sliding shaft 13 again will push the elastic clamping plate 9 out again. The spring 7 pushes the fixed ring 6, causing the valve core 10 to rise and achieve the opening of the inside of the valve seat 1, avoiding production stagnation or waiting time caused by slow valve action, and greatly improving production efficiency.

[0025] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. An instrument valve with quick opening and closing function, comprising a valve seat (1), characterized in that: The valve seat (1) is fixedly connected with valve body (2) on both sides, the top of the valve seat (1) is fixedly connected with sealing column (3), the inside of the sealing column (3) is provided with opening and closing assembly; The opening and closing assembly includes press column (4), the press column (4) is slidingly connected in the inside of the sealing column (3), the bottom of the press column (4) is fixedly connected with slide column (5), the outer wall of the slide column (5) is fixedly connected with fixed ring (6), the bottom end of the slide column (5) is fixedly connected with valve stem (8), the bottom end of the valve stem (8) is fixedly connected with valve core (10), the outer wall of the slide column (5) is sleeved with spring one (7), one end of the spring one (7) is fixedly connected with the side wall of the fixed ring (6), the other end of the spring one (7) is fixedly connected in the inside of the sealing column (3), the outer wall of the slide column (5) is fixedly connected with elastic clamping plate (9), the side wall of the sealing column (3) is provided with reset assembly.

2. The instrument valve with quick opening and closing function according to claim 1, characterized in that: The reset assembly includes connecting table (11), the connecting table (11) is fixedly connected with the side wall of the sealing column (3).

3. The instrument valve with quick opening and closing function according to claim 2, characterized in that: The inside of the connecting table (11) is provided with inner groove (12), the inside of the connecting table (11) is slidingly connected with slide shaft (13).

4. The instrument valve with quick opening and closing function according to claim 3, characterized in that: The outer wall of the slide shaft (13) is fixedly connected with side plate (14), the side plate (14) is slidingly connected in the inside of the inner groove (12).

5. The instrument valve with quick opening and closing function according to claim 4, characterized in that: The other end of the slide shaft (13) is fixedly connected with outer operating shaft (16), the outer wall of the slide shaft (13) is sleeved with spring two (15).

6. The instrument valve with quick opening and closing function according to claim 5, characterized in that: One end of the spring two (15) is fixedly connected with the side wall of the side plate (14), the other end of the spring two (15) is fixedly connected in the inside of the connecting table (11).

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