Bidirectional zero-leakage gate valve for dual-seal flue and air duct

Abstract

The utility model discloses a bi-directional zero-leakage gate valve for a dual-seal flue gas duct, which comprises a gate frame and a gate, a passage for the gate to move is arranged on the gate frame, symmetrically arranged supports are arranged in the middles of two sides of the top of the gate frame, the tops of the supports are connected with bearing seats, and the bearing seats are connected with the gate frame. A screw rod is movably connected to the bearing seat in a penetrating mode, and the bottom end of the screw rod is movably connected with a connecting seat connected with the side edge of the inserting plate. In order to improve the sealing effect when the inserting plate is closed, the front end of the inserting plate completely abuts against the sealing groove, the sealing ring is extruded to be tightly pressed on the side wall of the inserting plate, and the sealing effect when the inserting plate valve is closed is improved. Due to the arrangement of the pressurizing mechanism, the air cavity can be pressurized and discharged through the air outlet, the discharged air can clean dust and impurities at the inserting plate frame and the sealing groove, and the sealing effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of flashboard valve, specifically, relate to a double sealing smoke air duct bidirectional zero leakage flashboard valve. BACKGROUND

[0002] Among various types of valves, the gate valve is the most widely used one, and the flashboard valve is one of the gate valves, which is used in a wider range from ordinary fields to various industries. The flashboard valve has the advantages of simple and compact structure, reasonable design, reliable sealing, easy and flexible operation, smooth passage, small resistance, easy installation and disassembly.

[0003] For the flashboard valve connected with the smoke and air pipeline, the opening and closing of the flashboard valve is not a necessary operation in daily life, but when the smoke and air are transported, the guide groove of the flashboard valve is easily filled with dust and other media, causing the valve to close, thereby adversely affecting the sealing performance of the bottom of the valve plate.

[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems in the related art, the utility model provides a double sealing smoke air duct bidirectional zero leakage flashboard valve to overcome the above technical problems existing in the prior art.

[0006] Therefore, the utility model adopts the specific technical scheme as follows:

[0007] A double sealing smoke air duct bidirectional zero leakage flashboard valve, comprising a flashboard frame and a flashboard, a channel for the flashboard to move is formed in the flashboard frame, symmetrically arranged supports are arranged at the middle of the top of the flashboard frame, a bearing seat is connected to the top of the support, a screw rod is movably connected to the bearing seat, a connecting seat connected to the side of the flashboard is movably connected to the bottom end of the screw rod, a plurality of evenly distributed air outlets are formed in the bottom of the flashboard, a gas cavity in communication with the air outlets is arranged in the flashboard, and a pressurizing mechanism for pressurizing the gas cavity is arranged on one side of the support.

[0008] Preferably, the pressurizing mechanism comprises a mounting plate, an inclined air pump is movably connected to one side of the mounting plate, and a pressing rod connected to the mounting plate is movably connected to the bottom of the air pump.

[0009] Preferably, a pin shaft one movably connected to the mounting plate is arranged at the bottom end of the pressing rod, and the air pump is movably connected to the mounting plate through a pin shaft two.

[0010] Preferably, a U-shaped movable frame connected with the inflator is movably connected to the pressing rod, and a connecting pipe in communication with the air cavity is arranged at the top end air outlet of the inflator.

[0011] Preferably, a sealing groove matched with the plug is arranged on the plug frame, and a sealing ring is arranged at the sealing groove.

[0012] Preferably, the bottom of the plug is of an inclined structure, and a rotating wheel is arranged at the top of the screw rod.

[0013] Preferably, a rotating handle is arranged at the top of the rotating wheel.

[0014] The beneficial effects of the present application are as follows: when the smoke and air duct needs to be closed, the rotating wheel is rotated by rotating the eccentric rotating handle, the rotating wheel drives the screw rod to move inward, the plug is pushed forward along the length direction until the front end of the plug completely abuts against the side wall of the plug frame; in order to improve the sealing effect when the plug is closed, the front end of the plug completely abuts against the sealing groove, the sealing ring is tightly pressed on the side wall of the plug by extrusion, and the sealing effect when the plug valve is closed is improved; and the setting of the pressurizing mechanism can pressurize the air cavity and discharge through the air outlet, the discharged gas can clean the dust and impurities at the plug frame and the sealing groove, and the sealing effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0016] Figure 1 is a structure schematic view of a double-sealing smoke and air duct bidirectional zero-leakage plug valve according to an embodiment of the present application;

[0017] Figure 2 is a structure schematic view of an air outlet in a double-sealing smoke and air duct bidirectional zero-leakage plug valve according to an embodiment of the present application;

[0018] Figure 3 is a side view of a double-sealing smoke and air duct bidirectional zero-leakage plug valve according to an embodiment of the present application;

[0019] Figure 4 is a structure schematic view of a pressurizing mechanism in a double-sealing smoke and air duct bidirectional zero-leakage plug valve according to an embodiment of the present application;

[0020] Figure 5It is a structure schematic view of the air cavity of the double-sealing smoke air duct bidirectional zero-leakage flashboard valve according to the embodiment of the utility model.

[0021] In the drawing:

[0022] 1, flashboard frame; 2, flashboard; 3, channel; 4, support; 5, bearing seat; 6, screw rod; 7, connecting seat; 8, air outlet; 9, air cavity; 10, air pump; 11, pressing rod; 12, pin shaft one; 13, pin shaft two; 14, U-shaped movable frame; 15, connecting pipe; 16, sealing groove; 17, rotating wheel; 18, handle; 19, mounting plate. DETAILED DESCRIPTION

[0023] To further illustrate the embodiments, the utility model provides drawings, these drawings are part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate with the relevant description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, and the person skilled in the art should understand other possible implementation modes and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to represent similar components.

[0024] According to the embodiment of the utility model, a double-sealing smoke air duct bidirectional zero-leakage flashboard valve is provided.

[0025] Embodiment one:

[0026] As Figures 1-5 shown, according to the double-sealing smoke air duct bidirectional zero-leakage flashboard valve of the embodiment of the utility model, including flashboard frame 1 and flashboard 2, the channel 3 that can be provided for the flashboard 2 is set up on the flashboard frame 1, the top both sides middle part of the flashboard frame 1 is equipped with the support 4 that is arranged symmetrically, the top of the support 4 is connected with bearing seat 5, the bearing seat 5 is connected with screw rod 6 on the penetration activity, the bottom end of the screw rod 6 is connected with the connecting seat 7 that is connected with the side of the flashboard 2, the bottom of the flashboard 2 is set up with several evenly distributed air outlets 8, the flashboard 2 is equipped with air cavity 9 that is connected with the air outlet 8, one side of the support 4 is equipped with the pressurizing mechanism for pressurizing the air cavity 9.

[0027] Embodiment two:

[0028] As Figures 1-5As shown, the pressurizing mechanism includes a mounting plate 19. An inclined air pump 10 is movably connected to one side of the mounting plate 19. A pressure rod 11 connected to the mounting plate 19 is movably connected to the bottom of the air pump 10. A pin 12 movably connected to the mounting plate 19 is provided at the bottom end of the pressure rod 11. The air pump 10 is movably connected to the mounting plate 19 via a second pin 13. A U-shaped movable frame 14 connected to the air pump 10 is movably connected to the pressure rod 11. A connecting pipe 15 communicating with the air chamber 9 is provided at the air outlet at the top of the air pump 10.

[0029] Example 3:

[0030] like Figures 1-5 As shown, the insert plate frame 1 has a sealing groove 16 that matches the insert plate 2, and a sealing ring is provided at the sealing groove 16. The bottom of the insert plate 2 has an inclined structure, and the top of the screw 6 has a rotating wheel 17, and the top of the rotating wheel 17 has a rotating handle 18.

[0031] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0032] In practical applications, when the smoke and air ducts need to be closed, the lever 11 is pulled back and forth, causing the air pump 10 to discharge pressurized air from the outlet 8 in the air chamber 9. The discharged air can clean the dust and impurities in the slide plate frame 1 and the sealing groove 16. Then, the eccentric handle 18 is used to rotate the wheel 17. The rotation of the wheel 17 drives the screw 6 to push inward, pushing the slide plate 2 forward along its length until the front end of the slide plate 2 is completely against the side wall of the slide plate frame 1. In order to improve the sealing effect when the slide plate 2 is closed, the front end of the slide plate 2 is completely against the sealing groove 16, and the sealing ring is squeezed and pressed tightly against the side wall of the slide plate 2, thereby improving the sealing effect when the slide plate valve is closed.

[0033] In summary, with the help of the above-mentioned technical solution of this utility model, when the smoke and air duct need to be closed, the eccentric handle 18 is used to rotate the wheel 17. The rotation of the wheel 17 drives the screw 6 to push inward, pushing the insert plate 2 forward along its length until the front end of the insert plate 2 completely abuts against the side wall of the insert plate frame 1. In order to improve the sealing effect when the insert plate 2 is closed, the front end of the insert plate 2 completely abuts against the sealing groove 16, and the sealing ring is squeezed and pressed tightly against the side wall of the insert plate 2, thereby improving the sealing effect when the insert plate valve is closed. The setting of the pressurizing mechanism can pressurize the air chamber 9 and discharge it through the air outlet 8. The discharged gas can clean the dust and impurities at the insert plate frame 1 and the sealing groove 16, ensuring the sealing effect.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A double-sealed flue gas duct bidirectional zero-leakage slide gate valve, characterized in that, The device includes a plate holder (1) and a plate (2). The plate holder (1) has a channel (3) for the plate (2) to move. The top two sides of the plate holder (1) are provided with symmetrically arranged brackets (4). The top of the brackets (4) is connected to a bearing seat (5). A screw (6) is movably connected through the bearing seat (5). The bottom end of the screw (6) is movably connected to a connecting seat (7) connected to the side of the plate (2). The bottom of the plate (2) has several evenly distributed air outlets (8). The plate (2) has an air chamber (9) that communicates with the air outlets (8). One side of the brackets (4) is provided with a pressurizing mechanism for pressurizing the air chamber (9).

2. The double-sealed flue gas duct bidirectional zero-leakage slide gate valve according to claim 1, characterized in that, The pressurizing mechanism includes a mounting plate (19), one side of which is movably connected to an inclined air pump (10), and the bottom of the air pump (10) is movably connected to a pressure rod (11) connected to the mounting plate (19).

3. The double-sealed flue gas duct bidirectional zero-leakage slide gate valve according to claim 2, characterized in that, The bottom end of the pressure rod (11) is provided with a first pin (12) that is movably connected to the mounting plate (19), and the air pump (10) is movably connected to the mounting plate (19) through a second pin (13).

4. The double-sealed flue gas duct bidirectional zero-leakage slide gate valve according to claim 3, characterized in that, The pressure rod (11) is movably connected to a U-shaped movable frame (14) connected to the air pump (10), and the air pump (10) has a connecting pipe (15) at the top air outlet that communicates with the air chamber (9).

5. A double-sealed flue gas duct bidirectional zero-leakage slide gate valve according to claim 1, characterized in that, The insert plate frame (1) is provided with a sealing groove (16) that matches the insert plate (2), and a sealing ring is provided at the sealing groove (16).

6. A double-sealed flue gas duct bidirectional zero-leakage slide gate valve according to claim 1, characterized in that, The bottom of the insert plate (2) is inclined, and the top of the screw (6) is provided with a rotating wheel (17).

7. A double-sealed flue gas duct bidirectional zero-leakage slide gate valve according to claim 6, characterized in that, The top of the wheel (17) is provided with a handle (18).

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