Stable mounting valve seat and oil exploitation flat valve thereof

Abstract

The utility model discloses a stably-installed valve seat and an oil exploitation flat valve thereof. The stably-installed valve seat comprises a valve seat body, an end plate which is arranged on the upper portion of the valve seat body and used for being connected with a valve deck, a bolt hole is formed in the peripheral side of the end plate, and a connecting piece is arranged in the bolt hole. Wherein the connecting piece is used for connecting the end plate with the valve cover. Through the synergistic effect of the connecting piece, the limiting sliding block, the sliding groove and other structures, the valve seat and the valve cover are tightly connected, high-pressure fluid impact and equipment vibration are effectively resisted, the loosening risk is greatly reduced, the sealing performance and reliability of the valve are guaranteed, leakage accidents are reduced, petroleum resource waste is avoided, and the mining site environment and personnel safety are protected.

Description

Technical Field

[0001] This utility model relates to a stable valve seat and its oil extraction flat plate valve. Background Technology

[0002] In the oil extraction process, the flat plate valve is a key control device, and the secure installation of its valve seat is crucial.

[0003] Traditional valve seat installations mostly rely on bolts for connection and fixation. The connection between the valve seat and the valve cover is not strong enough and is prone to loosening under the impact of high-pressure fluid media, leading to a decrease in valve sealing performance and even causing leakage accidents. This not only wastes oil resources but may also pose a threat to the environment and personnel safety at the mining site.

[0004] Therefore, a method for installing a valve seat and its flat plate valve for oil extraction is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a stable valve seat and its oil extraction flat plate valve, in order to solve the problem mentioned in the background art that traditional valve seat installations are mostly connected and fixed by bolts, the connection between the valve seat and the valve cover is not strong enough, and it is easy to loosen under the impact of high pressure fluid medium, resulting in a decrease in valve sealing performance.

[0006] To solve the above technical problems, this utility model provides the following technical solution: a valve seat and its oil extraction flat plate valve, including a valve seat, an end plate for connecting to a valve cover is provided on the upper part of the valve seat, a bolt hole is provided on the outer periphery of the end plate, and a connecting piece is provided inside the bolt hole;

[0007] The connector is used to connect the end plate to the valve cover.

[0008] Preferably, the connector includes a connector bolt inserted into the bolt hole, the upper part of the connector bolt is provided with two sets of inner liner rods, and a fixing seat plate is provided at the top of the inner liner rods. The outer periphery of the fixing seat plate is arc-shaped, and the outer diameter of the fixing seat plate matches the inner diameter of the connection hole at the valve cover, so that the fixing seat plate is connected to the upper end of the valve cover through the connection hole at the valve cover.

[0009] Preferably, the two sets of inner lining rods are symmetrically arranged on the connecting bolt, and each inner lining rod is provided with a limit slider on its outer periphery.

[0010] Preferably, limiting grooves that cooperate with limiting sliders are provided on both sides of the bolt hole, so that the inner liner rod can slide linearly inside the connecting hole through the limiting slider.

[0011] Preferably, an inner lining groove is provided between the two sets of inner lining rods, and the inner diameter of the inner lining groove gradually decreases from top to bottom.

[0012] Preferably, an internal threaded groove is provided between the two sets of fixed base plates to cooperate with the bolt, and the internal threaded groove and the inner liner groove are interconnected so that the bolt is connected to the inner liner groove through the internal threaded groove.

[0013] Preferably, an external thread is provided on the lower outer periphery of the connecting bolt, and a fixing nut is rotatably connected to the lower part of the bolt hole. The fixing nut and the external thread at the connecting bolt cooperate with each other, so that the fixing nut controls the movement of the connecting bolt in the bolt hole through the external thread.

[0014] A flat plate valve for oil extraction, including a valve seat.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This utility model, through the coordinated action of connecting parts, limiting sliders and sliding grooves, ensures a tight connection between the valve seat and valve cover, effectively resisting the impact of high-pressure fluids and equipment vibration, significantly reducing the risk of loosening, ensuring the sealing performance and reliability of the valve, reducing leakage accidents, avoiding the waste of petroleum resources, and protecting the environment and personnel safety at the mining site.

[0017] During installation, the lower part of the valve cover abuts against the arc-shaped surface of the fixed seat plate. After the two sets of fixed seat plates are subjected to force, they move relative to each other through the inner lining groove until they fit together. This process allows the fixed seat plate to fit tightly against the upper end of the valve cover connection hole, initially establishing a tight connection between the valve seat and the valve cover.

[0018] Next, by rotating the fixing nut, the connecting bolt is driven downwards through the engagement of the external thread and the connecting bolt, further tightening the lower wall of the fixing seat plate against the upper end of the valve cover connection hole, thus enhancing the tightness of the connection. Finally, the bolt is inserted into the internal thread groove and rotated, connecting the bolt to the inner liner groove through the internal thread groove. At the same time, the two sets of inner liner rods abut against the fixing seat plate on the outer periphery, and the bolt nuts press the fixing seat plate tightly against the valve cover. This series of progressive operations reinforces the connection layer by layer, achieving a highly tight state between the valve seat and the valve cover. This effectively prevents loosening and leakage under high-pressure fluid impact, ensuring the valve's sealing performance and reliability.

[0019] Meanwhile, the initial connection between the valve cover and the valve seat becomes intuitive and simple, eliminating the need for complex positioning tools and cumbersome operating procedures. This greatly simplifies the initial installation steps, reduces the technical proficiency requirements for operators, and improves installation efficiency. It enables the rapid initial assembly of the valve seat and valve cover, laying a good foundation for subsequent, tighter connection operations. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the assembly structure of an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the lower structure of an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of an embodiment of the present utility model;

[0023] Figure 4 This is an enlarged schematic diagram of the structure at point A in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the connection parts and bolt assembly according to an embodiment of the present utility model;

[0025] Figure 6 This is a schematic diagram of the connecting component structure according to an embodiment of the present utility model.

[0026] In the diagram: 1. Valve seat; 2. End plate; 3. Bolt hole; 31. Limiting groove; 4. Connecting piece; 41. Connecting bolt; 42. Inner liner rod; 43. Fixed seat plate; 44. Limiting slider; 45. Inner liner groove; 46. Inner thread groove; 47. External thread; 48. Fixing nut. Detailed Implementation

[0027] To address the problem that traditional valve seat installations, which mostly rely on bolts for connection and fixation, often lack a secure connection between the valve seat and valve cover, making them prone to loosening under the impact of high-pressure fluid media and leading to a decrease in valve sealing performance, this utility model provides a method for securely installing a valve seat and its oil extraction flat panel valve. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Please see Figure 1-6This utility model provides a valve seat 1 for stable installation. An end plate 2 for connecting to a valve cover is located on the upper part of the valve seat 1. A bolt hole 3 is provided on the outer periphery of the end plate 2, and a connector 4 is provided inside the bolt hole 3. The connector 4 includes a connecting bolt 41 inserted into the bolt hole 3. Two sets of inner liner rods 42 are provided on the upper part of the connecting bolt 41. A fixing plate 43 is provided at the top end of each inner liner rod 42. The outer periphery of the fixing plate 43 is arc-shaped, and the outer diameter of the fixing plate 43 matches the inner diameter of the connecting hole at the valve cover, so that the fixing plate 43 connects to the upper end of the valve cover through the connecting hole. The two sets of inner liner rods 42 are symmetrically arranged on the connecting bolt 41, and each inner liner rod 42 has a limit slider 44 on its outer periphery.

[0029] Limiting grooves 31 are provided on both sides of the bolt hole 3 to cooperate with the limiting slider 44, so that the inner liner rod 42 can slide linearly inside the connecting hole through the limiting slider 44.

[0030] An inner lining groove 45 is provided between the two sets of inner lining rods 42, and the inner diameter of the inner lining groove 45 gradually decreases from top to bottom. An inner threaded groove 46 is provided between the two sets of fixed base plates 43 to cooperate with bolts, and the inner threaded groove 46 and the inner lining groove 45 are interconnected so that the bolts can be connected to the inner lining groove 45 through the inner threaded groove 46.

[0031] An external thread 47 is provided on the lower outer periphery of the connecting bolt 41. A fixing nut 48 is rotatably connected to the lower part of the bolt hole 3, and the fixing nut 48 and the external thread 47 at the connecting bolt 41 cooperate with each other so that the fixing nut 48 controls the movement of the connecting bolt 41 in the bolt hole 3 through the external thread 47.

[0032] The connector 4 is used to connect the end plate 2 to the valve cover.

[0033] A flat plate valve for oil extraction includes a valve seat 1.

[0034] The working principle of the stable installation valve seat and its oil extraction flat valve provided by this utility model is as follows: During installation, the connecting hole of the valve cover is aligned with the bolt hole 3 of the valve seat 1, and then the valve cover is moved downward. The lower part of the valve cover abuts against the arc-shaped surface of the fixed seat plate 43. The two sets of fixed seat plates 43 are subjected to force and move relative to each other through the inner lining groove 45 until the two sets of fixed seat plates 43 are in contact with each other. The two sets of fixed seat plates 43 move to the valve cover through the connecting hole, and the lower wall side of the fixed seat plate 43 is in contact with the upper end of the connecting hole of the valve cover.

[0035] Rotate the fixing nut 48. The fixing nut 48 connects to the connecting bolt 41 via the external thread 47. The connecting bolt 41 moves downward in the bolt hole 3 via the limiting slider 44 of the inner liner rod 42 until the lower wall of the fixing seat plate 43 is tightly attached to the upper end of the connecting hole of the valve cover. This achieves a preliminary tight connection between the valve seat 1 and the valve cover.

[0036] Insert the bolt from the valve cover to the inner threaded groove 46. Turve the bolt, and the bolt will connect to the inner liner groove 45 through the inner threaded groove 46. The two sets of inner liner rods 42 and the fixed seat plate 43 will abut against the outer periphery. The inner liner rods 42 and the fixed seat plate 43 will connect the bolt and the end cover tightly. The nut of the bolt will press the fixed seat plate 43 against the valve cover, further improving the connection stability.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve seat for secure mounting, characterized in that: Includes a valve seat (1), and an end plate (2) for connecting to a valve cover is provided on the upper part of the valve seat (1). A bolt hole (3) is provided on the outer periphery of the end plate (2), and a connector (4) is provided inside the bolt hole (3). The connector (4) is used to connect the end plate (2) to the valve cover.

2. The valve seat for stable installation according to claim 1, characterized in that: The connector (4) includes a connector (41) inserted into the bolt hole (3). The upper part of the connector (41) is provided with two sets of inner liner rods (42). A fixed seat plate (43) is provided at the top of the inner liner rods (42). The outer periphery of the fixed seat plate (43) is arc-shaped, and the outer diameter of the fixed seat plate (43) matches the inner diameter of the connection hole at the valve cover, so that the fixed seat plate (43) is connected to the upper end of the valve cover through the connection hole at the valve cover.

3. A valve seat for stable installation according to claim 2, characterized in that: The two sets of inner lining rods (42) are symmetrically arranged on the connecting bolt (41), and the outer periphery of each inner lining rod (42) is provided with a limit slider (44).

4. A valve seat for stable installation according to claim 3, characterized in that: Limiting grooves (31) that cooperate with limiting sliders (44) are provided on both sides of the bolt hole (3) so that the inner liner rod (42) slides linearly inside the connecting hole through the limiting sliders (44).

5. A valve seat for stable installation according to claim 4, characterized in that: An inner lining groove (45) is provided between the two sets of inner lining rods (42), and the inner diameter of the inner lining groove (45) gradually decreases from top to bottom.

6. A valve seat for stable installation according to claim 5, characterized in that: An inner threaded groove (46) is provided between the two sets of fixed base plates (43) to cooperate with the bolt, and the inner threaded groove (46) and the inner liner groove (45) are interconnected so that the bolt can be connected to the inner liner groove (45) through the inner threaded groove (46).

7. A valve seat for stable installation according to claim 2, characterized in that: An external thread (47) is provided on the lower outer periphery of the connecting bolt (41). A fixing nut (48) is rotatably connected to the lower part of the bolt hole (3). The fixing nut (48) and the external thread (47) at the connecting bolt (41) cooperate with each other so that the fixing nut (48) controls the movement of the connecting bolt (41) in the bolt hole (3) through the external thread (47).

8. A flat plate valve for oil extraction, characterized in that: The valve seat (1) includes any one of claims 1-7 above.

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