A multi-stage seal plug-in valve

Abstract

The utility model relates to the technical fields of plug valve, especially a multistage sealing plug valve, when using, the valve body is connected with the front and rear pipeline mouth through two groups of connecting sealing assemblies, the staff operates the drive assembly, makes the plug to descend or rise, thereby makes the plug to seal or unseal the inside of valve body under the guidance cooperation of square mouth and shell, reduces the labor intensity of staff, improves the operation convenience, including valve body, plug, shell, apron and no.

Description

Technical Field

[0001] This utility model relates to the technical field of slide gate valves, and in particular to a multi-stage sealing slide gate valve. Background Technology

[0002] A slide gate valve is a type of valve that controls the flow of fluid through a vertically moving gate. It is widely used to shut off or fully open the flow of media in pipelines. Its core feature is that the gate moves perpendicular to the direction of the fluid, thus achieving the shut-off or flow of the fluid.

[0003] In the prior art, patent document CN203585380U discloses a gate valve, comprising a valve seat, a rubber plate, a slide plate, a lead screw, a handwheel, and a valve seat fixing frame; characterized in that the upper half of the inner surface of the valve seat is trapezoidal, and the lower half is arc-shaped, with the hypotenuses on both sides of the trapezoid tangent to the arc; the upper half of the slide plate is trapezoidal, and the lower half is arc-shaped, with the hypotenuses on both sides of the trapezoid tangent to the arc. This gate valve of the present invention provides good sealing performance and extends the service life of the rubber seals.

[0004] During use, it was found that the above-mentioned device required manual adjustment of the position of the insertion plate, which was quite labor-intensive. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a multi-stage sealing slide valve that reduces labor intensity.

[0006] This utility model discloses a multi-stage sealing slide gate valve, comprising a valve body, a slide gate, a housing, a cover plate, and a locking bolt. The housing is located at the top of the valve body, and the cover plate seals the top of the housing via the locking bolt. The valve body communicates with the housing. A socket is provided on the cover plate, communicating with the housing. The valve body also includes a connecting sealing assembly and a driving assembly. Connecting sealing assemblies are located at both the front and rear ends of the valve body, and the driving assembly is installed at the top of the cover plate. The driving assembly is used to raise and lower the slide gate, which slides inside the socket. In use, the valve body is connected to the front and rear pipe ports via two sets of connecting sealing assemblies. The operator operates the driving assembly to lower or raise the slide gate, thereby sealing or releasing the seal on the inside of the valve body under the guidance of the square opening and the housing. This reduces the labor intensity of the operator and improves operational convenience.

[0007] Preferably, the connecting sealing assembly includes a fixing block, a round hole, and an annular groove. Multiple sets of fixing blocks are provided on the outer wall of the valve body, each set having a set of round holes. Annular grooves are provided on the inner walls of the front and rear ends of the valve body, and a sealing ring is placed in each annular groove. In use, the round hole on the fixing block coincides with the flange hole on the pipe flange. The operating bolt passes through the round hole and the flange hole and is threaded into the nut, thus completing the connection between the valve body and the front and rear pipes. Simultaneously, the sealing ring is placed inside the annular groove, sealing the gap between the pipe and the valve body to prevent leakage of the transported medium and improve sealing performance.

[0008] Preferably, the drive assembly includes a fixed rod, a support plate, a cylinder, a second locking bolt, a connecting seat, and a third locking bolt. Multiple sets of fixed rods are provided at the top of the cover plate, and the tops of these fixed rods are all connected to the bottom of the support plate. The cylinder is mounted on the top of the support plate and locked by the second locking bolt. A connecting seat is provided at the bottom moving end of the cylinder, and the connecting seat is fixedly connected to the top of the insert plate by the third locking bolt. Operators can adjust the cylinder's extension or shortening according to usage needs, thereby allowing the connecting seat to drive the insert plate to adjust its height with the cooperation of the third locking bolt, improving convenience and flexibility.

[0009] Preferably, the insert plate consists of a straight plate portion and a semi-circular portion, with the semi-circular portion at the bottom of the straight plate portion, and the bottom of the semi-circular portion fitting into the inner wall of the valve body. Since the bottom of the semi-circular portion fits into the inner wall of the valve body, the semi-circular portion and the straight plate portion cooperate to seal the inner wall of the valve body, thereby improving the sealing performance.

[0010] Preferably, it also includes a sealing strip, and the bottom end of the semicircular portion is provided with a sealing strip; the bottom end of the semicircular portion, in cooperation with the sealing strip, comes into contact with the bottom end of the inner wall of the valve body to improve the sealing performance.

[0011] Preferably, it also includes a sealing groove, wherein the bottom of the inner wall of the valve body is provided with a sealing groove, and the sealing groove is adapted to the sealing strip; when the cylinder extends, the bottom of the semicircular part drives the sealing strip to insert into the sealing groove, thereby improving the sealing performance and reducing the deformation of the semicircular part, thus improving the service life.

[0012] Preferably, the number of support plates is four sets.

[0013] Preferably, the valve body and the housing are integrally formed.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, the valve body is connected to the front and rear pipe ports through two sets of connecting sealing components. The operator operates the drive component to lower or raise the slide plate, so that the slide plate seals or releases the seal on the inside of the valve body under the guidance of the square opening and the shell, thereby reducing the labor intensity of the operator and improving the ease of operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0016] Figure 2 This is an exploded structural diagram of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of the cover plate and shell, etc.

[0018] Figure 4 It is an enlarged structural diagram of the cylinder and support plate, etc.

[0019] Figure 5 This is a schematic diagram of the second isometric structure of this utility model.

[0020] The following are labels in the attached diagram: 1. Valve body; 2. Insert plate; 3. Housing; 4. Cover plate; 5. No. 1 locking bolt; 6. Fixing block; 7. Round hole; 9. Annular groove; 10. Fixing rod; 11. Support plate; 12. Cylinder; 13. No. 2 locking bolt; 14. Connecting seat; 15. No. 3 locking bolt; 18. Sealing strip; 19. Sealing groove; 21. Straight plate section; 22. Semicircular section. Detailed Implementation

[0021] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0022] Example 1

[0023] like Figures 1 to 5 As shown, this utility model discloses a multi-stage sealing slide valve, including a valve body 1, a slide plate 2, a housing 3, a cover plate 4, and a first locking bolt 5. The top of the valve body 1 is provided with the housing 3, and the cover plate 4 is sealed to the top of the housing 3 by the first locking bolt 5. The valve body 1 communicates with the housing 3. The cover plate 4 is provided with a socket, which communicates with the housing 3. It also includes a connecting sealing assembly and a driving assembly. The valve body 1 is provided with connecting sealing assemblies at its front and rear ends, and the cover plate 4 is provided with a driving assembly at its top. The driving assembly is used for raising and lowering the slide plate 2, and the slide plate 2 is slidably disposed inside the socket.

[0024] like Figure 2 and Figure 3 As shown, the connecting sealing assembly includes a fixing block 6, a round hole 7 and an annular groove 9. The outer side wall of the valve body 1 is provided with multiple sets of fixing blocks 6, and each set of fixing blocks 6 is provided with a set of round holes 7. The inner side walls at both ends of the valve body 1 are provided with a set of annular grooves 9, and a set of sealing rings is placed in each set of annular grooves 9.

[0025] like Figure 2 and Figure 4 As shown, the drive assembly includes a fixed rod 10, a support plate 11, a cylinder 12, a second locking bolt 13, a connecting seat 14, and a third locking bolt 15. The top of the cover plate 4 is provided with multiple sets of fixed rods 10, and the top of each set of fixed rods 10 is connected to the bottom of the support plate 11. The cylinder 12 is installed on the top of the support plate 11 and locked by the second locking bolt 13. The bottom moving end of the cylinder 12 is provided with a connecting seat 14, and the connecting seat 14 is fixedly connected to the top of the insert plate 2 by the third locking bolt 15.

[0026] In this embodiment, during use, the round hole 7 on the fixing block 6 coincides with the flange hole on the pipe flange. The operating bolt passes through the round hole 7 and the flange hole and is threaded with the nut, thereby completing the connection between the valve body 1 and the front and rear pipes. At the same time, the sealing ring is placed inside the annular groove 9, and the sealing ring seals the gap between the pipe and the valve body 1. According to the usage needs, the operator adjusts the cylinder 12 to extend or shorten, so that the connecting seat 14 drives the slide plate 2 to adjust its height with the cooperation of the No. 3 locking bolt 15.

[0027] Example 2

[0028] like Figures 1 to 5 As shown, this utility model discloses a multi-stage sealing slide valve, including a valve body 1, a slide plate 2, a housing 3, a cover plate 4, and a first locking bolt 5. The top of the valve body 1 is provided with the housing 3, and the cover plate 4 is sealed to the top of the housing 3 by the first locking bolt 5. The valve body 1 communicates with the housing 3. The cover plate 4 is provided with a socket, which communicates with the housing 3. It also includes a connecting sealing assembly and a driving assembly. The valve body 1 is provided with connecting sealing assemblies at its front and rear ends, and the cover plate 4 is provided with a driving assembly at its top. The driving assembly is used for raising and lowering the slide plate 2, and the slide plate 2 is slidably disposed inside the socket.

[0029] like Figure 2 and Figure 3 As shown, the connecting sealing assembly includes a fixing block 6, a round hole 7 and an annular groove 9. The outer side wall of the valve body 1 is provided with multiple sets of fixing blocks 6, and each set of fixing blocks 6 is provided with a set of round holes 7. The inner side walls at both ends of the valve body 1 are provided with a set of annular grooves 9, and a set of sealing rings is placed in each set of annular grooves 9.

[0030] like Figure 2 and Figure 4As shown, the drive assembly includes a fixed rod 10, a support plate 11, a cylinder 12, a second locking bolt 13, a connecting seat 14, and a third locking bolt 15. Multiple sets of fixed rods 10 are provided at the top of the cover plate 4, and the tops of all sets of fixed rods 10 are connected to the bottom of the support plate 11. The cylinder 12 is mounted on the top of the support plate 11 and locked by the second locking bolt 13. A connecting seat 14 is provided at the bottom moving end of the cylinder 12, and the connecting seat 14 is fixedly connected to the top of the insert plate 2 by the third locking bolt 15. The valve body 1 and the housing 3 are integrally formed.

[0031] The insert plate 2 is composed of a straight plate portion 21 and a semi-circular portion 22. The semi-circular portion 22 is at the bottom end of the straight plate portion 21, and the bottom of the semi-circular portion 22 is adapted to the inner wall of the valve body 1.

[0032] It also includes a sealing strip 18, which is provided at the bottom end of the semicircular portion 22; it also includes a sealing groove 19, which is provided at the bottom end of the inner wall of the valve body 1, and the sealing groove 19 is adapted to the sealing strip 18.

[0033] In this embodiment, during use, the circular hole 7 on the fixing block 6 coincides with the flange hole on the pipe flange. The operating bolt passes through the circular hole 7 and the flange hole and is threaded with the nut, thereby completing the connection between the valve body 1 and the front and rear pipes. At the same time, the sealing ring is placed inside the annular groove 9, and the sealing ring seals the gap between the pipe and the valve body 1. According to the usage needs, the operator adjusts the cylinder 12 to extend or shorten, so that the connecting seat 14 drives the insert plate 2 to adjust its height under the cooperation of the No. 3 locking bolt 15. The bottom end of the semicircular part 22 is adapted to the inner wall of the valve body 1. When the cylinder 12 extends, the bottom end of the semicircular part 22 drives the sealing strip 18 to be inserted into the sealing groove 19, improving the sealing performance and reducing the deformation of the semicircular part 22.

[0034] The cylinder 12 of the multi-stage sealing slide valve of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-stage sealing slide gate valve, comprising a valve body (1), a slide gate (2), a housing (3), a cover plate (4), and a first locking bolt (5), wherein the valve body (1) is provided with a housing (3) at its top, the cover plate (4) is sealed to the top of the housing (3) by the first locking bolt (5), the valve body (1) communicates with the housing (3), and the cover plate (4) is provided with a socket that communicates with the housing (3), characterized in that, It also includes a connecting sealing assembly and a driving assembly. The valve body (1) is provided with connecting sealing assemblies at both ends. The top of the cover plate (4) is equipped with a driving assembly. The driving assembly is used for the lifting and lowering of the insert plate (2). The insert plate (2) is slidably set inside the socket.

2. A multi-stage sealing slide valve as described in claim 1, characterized in that, The connecting sealing assembly includes a fixing block (6), a round hole (7) and an annular groove (9). The outer side wall of the valve body (1) is provided with multiple sets of fixing blocks (6), and each set of fixing blocks (6) is provided with a set of round holes (7). The inner side walls of the front and rear ends of the valve body (1) are provided with a set of annular grooves (9), and a set of sealing rings is placed in each set of annular grooves (9).

3. A multi-stage sealing slide valve as described in claim 1, characterized in that, The drive assembly includes a fixed rod (10), a support plate (11), a cylinder (12), a second locking bolt (13), a connecting seat (14), and a third locking bolt (15). The top of the cover plate (4) is provided with multiple sets of fixed rods (10), and the top of each set of fixed rods (10) is connected to the bottom of the support plate (11). The cylinder (12) is installed on the top of the support plate (11) and locked by the second locking bolt (13). The bottom moving end of the cylinder (12) is provided with a connecting seat (14), and the connecting seat (14) is fixedly connected to the top of the insert plate (2) by the third locking bolt (15).

4. A multi-stage sealing slide valve as described in claim 1, characterized in that, The insert plate (2) consists of a straight plate part (21) and a semi-circular part (22). The semi-circular part (22) is located at the bottom of the straight plate part (21), and the bottom of the semi-circular part (22) is adapted to the inner wall of the valve body (1).

5. A multi-stage sealing slide valve as described in claim 4, characterized in that, It also includes a sealing strip (18), which is provided at the bottom end of the semicircular portion (22).

6. A multi-stage sealing slide valve as described in claim 5, characterized in that, It also includes a sealing groove (19), which is provided at the bottom of the inner wall of the valve body (1), and the sealing groove (19) is adapted to the sealing strip (18).

7. A multi-stage sealing slide valve as described in claim 3, characterized in that, The number of support plates (11) is four.

8. A multi-stage sealing slide valve as described in claim 7, characterized in that, The valve body (1) and the housing (3) are integrally formed.

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