Valve opening and closing assembly of ventilation check valve

Abstract

The utility model discloses a ventilation check valve opening and closing assembly which comprises a rectangular shell, an inner cavity of the rectangular shell is rotationally connected with a blade, the surface of the rectangular shell is rotationally connected with a rotating rod, and the end of the rotating rod penetrates into the inner cavity of the rectangular shell and is fixedly connected with the blade. A connecting plate is arranged on the outer side of the rotating rod, a connecting rod is fixedly connected to the surface of the rotating rod, and a rectangular box is fixedly connected to the surface of the rectangular shell through bolts. The threaded rod drives the threaded ring block to move, the threaded ring block pokes the groove plate to swing through the poking shaft, then the groove plate drives the lengthening rod and the rotating rod to rotate, the rotating rod drives the blades to rotate by a proper angle, the threaded rod drives the poking rod to move, and then the poking rod drives the groove plate to swing. Therefore, the trough plate drives the blade to rotate by a proper angle, the angle of the blade can be effectively adjusted, and the adjusting state has good stability.

Description

TECHNICAL FIELD

[0001] The utility model belongs to ventilation check valve technical field, especially, relate to a ventilation check valve gate opening and closing subassembly. BACKGROUND

[0002] In the existing ventilation system, in order to prevent the ventilation equipment in the ventilation system from stopping running, gas is discharged through the air outlet of the ventilation equipment, generally, check valve is arranged on the ventilation equipment, ventilation check valve is generally made of galvanized sheet, and the blade of check valve can be opened and closed by external adjusting structure.

[0003] When the blade of ventilation check valve is adjusted, the stability of the blade adjusting structure when stopping needs to be ensured, otherwise the wind speed in the inner cavity of ventilation check valve will be reacted on the adjusting structure through the blade, so that the blade inclination changes or shakes, therefore, a ventilation check valve gate opening and closing subassembly is needed, the driving lever is moved by the threaded rod, and then the lever drives the groove plate to swing, so that the groove plate drives the blade to rotate to the appropriate angle, the blade angle can be effectively adjusted, and the adjusting state has good stability. SUMMARY

[0004] The utility model discloses a ventilation check valve gate opening and closing subassembly, the driving lever is moved by the threaded rod, and then the lever drives the groove plate to swing, so that the groove plate drives the blade to rotate to the appropriate angle, the blade angle can be effectively adjusted, and the adjusting state has good stability, to solve the technical problem that the above background art proposes.

[0005] The utility model discloses a ventilation check valve gate opening and closing subassembly, the driving lever is moved by the threaded rod, and then the lever drives the groove plate to swing, so that the groove plate drives the blade to rotate to the appropriate angle, the blade angle can be effectively adjusted, and the adjusting state has good stability, to solve the technical problem that the above background art proposes.

[0006] Preferably, the connecting rod and the connecting plate are rotatably connected through a rotating shaft.

[0007] Preferably, the threaded ring block and the sliding block are fixedly connected.

[0008] Preferably, the end of the shaft extends to the inner cavity of the groove plate, the surface of the shaft is rotationally connected with a sleeve, and the surface of the sleeve is attached to the inner wall of the groove plate.

[0009] Preferably, the end of the threaded rod penetrates to the outside of the rectangular box and is fixedly connected with a handle block.

[0010] Preferably, the.

[0011] The utility model discloses the beneficial effect is:

[0012] The utility model discloses a threaded rod drives the threaded ring block to move, makes the threaded ring block swing through the shaft, and then the groove plate drives the extension rod and the rotary rod to rotate, thereby making the rotary rod drive the blade to rotate the appropriate angle, that is, the threaded rod drives the shift rod to move, and then makes the shift rod swing the groove plate, thereby making the groove plate drive the blade to rotate the appropriate angle, can effectively adjust the blade angle, and the adjustment state has the purpose of better stability.

[0013] 2, the utility model discloses the setting of the sleeve is to the inner wall of the shift and the groove plate and is protected from abrasion, avoids the situation of greater abrasion when the two directly contact, and then prolongs the service life of the two,

[0014] 3, the utility model discloses the setting of the handle block increases the surface area of the threaded rod, avoids the situation of hand slip when directly holding the threaded rod and rotating, and then improves the accuracy when holding the threaded rod and rotating. BRIEF DESCRIPTION OF DRAWINGS

[0015] Among them:

[0016] Figure 1 It is the structure schematic view of an embodiment of the utility model;

[0017] Figure 2 It is the three -dimensional schematic view of the rotary rod and connecting plate of an embodiment of the utility model;

[0018] Figure 3 It is an embodiment of the utility model Figure 2 The local enlarged view of point A in the middle;

[0019] Figure 4 It is the three -dimensional view of connecting plate and connecting rod of an embodiment of the utility model.

[0020] In the drawings, the component list represented by each sign is as follows:

[0021] 1, rectangular shell, 2, blade, 3, rotary rod, 4, connecting plate, 5, connecting rod, 6, rectangular box, 7, slide rail, 8, sliding block, 9, threaded rod, 10, threaded ring block, 11, shaft, 12, extension rod, 13, groove plate, 14, sleeve, 15, handle block. DETAILED DESCRIPTION

[0022] Hereinafter, the embodiment of the ventilation check valve opening and closing assembly of the utility model will be described with reference to the drawings. Embodiment 1

[0023] Figures 1-4 The ventilation check valve opening and closing assembly of the embodiment of the utility model is shown, which comprises a rectangular shell 1: the inner cavity of the rectangular shell 1 is rotatably connected with a vane 2, the surface of the rectangular shell 1 is rotatably connected with a rotating rod 3, the end of the rotating rod 3 penetrates into the inner cavity of the rectangular shell 1 and is fixedly connected with the vane 2, the outer side of the rotating rod 3 is provided with a connecting plate 4, the surface of the rotating rod 3 is fixedly connected with a connecting rod 5, the connecting rod 5 and the connecting plate 4 are rotatably connected through a rotating shaft, the surface of the rectangular shell 1 is fixedly connected with a rectangular box 6 through a bolt, the inner wall of the rectangular box 6 is fixedly connected with a sliding rail 7, the surface of the sliding rail 7 is slidably connected with a sliding block 8, the inner wall of the rectangular box 6 is rotatably connected with a threaded rod 9, the surface of the threaded rod 9 is threadedly connected with a threaded ring block 10, the threaded ring block 10 and the sliding block 8 are fixedly connected, the surface of the threaded ring block 10 is integrally formed with a rotating shaft 11, the surface of the rotating rod 3 is welded with an extended rod 12, the surface of the extended rod 12 is fixedly connected with a groove plate 13. Embodiment 2

[0024] Figures 1-4 The ventilation check valve opening and closing assembly of the embodiment of the utility model is shown, which comprises a rectangular shell 1: the inner cavity of the rectangular shell 1 is rotatably connected with a vane 2, the surface of the rectangular shell 1 is rotatably connected with a rotating rod 3, the end of the rotating rod 3 penetrates into the inner cavity of the rectangular shell 1 and is fixedly connected with the vane 2, the outer side of the rotating rod 3 is provided with a connecting plate 4, the surface of the rotating rod 3 is fixedly connected with a connecting rod 5, the surface of the rectangular shell 1 is fixedly connected with a rectangular box 6 through a bolt, the inner wall of the rectangular box 6 is fixedly connected with a sliding rail 7, the surface of the sliding rail 7 is slidably connected with a sliding block 8, the inner wall of the rectangular box 6 is rotatably connected with a threaded rod 9, the surface of the threaded rod 9 is threadedly connected with a threaded ring block 10, the surface of the threaded ring block 10 is integrally formed with a rotating shaft 11, the surface of the rotating rod 3 is welded with an extended rod 12, the surface of the extended rod 12 is fixedly connected with a groove plate 13, the end of the rotating shaft 11 extends into the inner cavity of the groove plate 13, the surface of the rotating shaft 11 is rotatably connected with a rotating sleeve 14, the surface of the rotating sleeve 14 is in close contact with the inner wall of the groove plate 13, through the setting of the rotating sleeve 14, the inner wall of the groove plate 13 is protected from the rotating shaft 11, avoiding the case that the two directly contact and are worn out, thereby prolonging the service life of the two, the end of the threaded rod 9 penetrates into the outer side of the rectangular box 6 and is fixedly connected with a handle block 15, through the setting of the handle block 15, the surface area of the threaded rod 9 is increased, avoiding the case that the hand slips when directly holding the threaded rod 9 to rotate, thereby improving the accuracy when holding the threaded rod 9 to rotate.

[0025] Working principle: the utility model for use, the user moves through rotating screw rod 9 drive screw ring block 10, the process is through the cooperation of slide rail 7 and sliding block 8, the movement of screw ring block 10 is limited, effectively guarantees the stability of screw ring block 10 in the process of moving, so that screw ring block 10 swings through the dial axle 11 dial slot plate 13, in turn slot plate 13 drive lengthening rod 12 and rotating rod 3 rotates, the process is through the cooperation of connecting plate 4 and connecting rod 5, the rotation of rotating rod 3 is linked, guarantees the consistency of rotating rod 3 rotating state on the surface of rectangular shell 1, so that rotating rod 3 drive vane 2 rotates appropriate angle, realizes through screw rod drive dial rod moves, and then makes dial rod drive slot plate swing, so that the slot plate drive vane rotates appropriate angle, can effectively adjust the angle of vane, and the adjustment state has good stability.

[0026] In conclusion: the vent check valve gate opening and closing assembly, through screw rod 9 drive screw ring block 10 moves, so that screw ring block 10 swings through the dial axle 11 dial slot plate 13, in turn slot plate 13 drive lengthening rod 12 and rotating rod 3 rotates, so that rotating rod 3 drive vane 2 rotates appropriate angle, namely can reach through screw rod drive dial rod moves, and then makes dial rod drive slot plate swing, so that the slot plate drive vane rotates appropriate angle, can effectively adjust the angle of vane, and the adjustment state has good stability.

Claims

1. A vent check valve gate opening and closing assembly, characterized by, The utility model provides a rectangular shell (1) is connected with the vane (2) in the cavity of rectangular shell (1), the surface of rectangular shell (1) is connected with the rotary rod (3), the end of rotary rod (3) is fixedly connected with the vane (2) in the cavity of rectangular shell (1), the outside of rotary rod (3) is provided with the connecting plate (4), the surface of rotary rod (3) is fixedly connected with the connecting rod (5), the surface of rectangular shell (1) is fixedly connected with the rectangular box (6) through bolt, the inner wall of rectangular box (6) is fixedly connected with the slide rail (7), the surface of slide rail (7) is slidably connected with the sliding block (8), the inner wall of rectangular box (6) is rotatably connected with the threaded rod (9), the surface of threaded rod (9) is threadedly connected with the threaded ring block (10), the surface of threaded ring block (10) is integrally formed with the handle shaft (11), the surface of rotary rod (3) is welded with the lengthening rod (12), the surface of lengthening rod (12) is fixedly connected with the groove plate (13).

2. The vent check valve gate open and close assembly of claim 1, wherein, The connecting rod (5) and the connecting plate (4) are rotatably connected through the rotating shaft.

3. The vent check valve gate open and close assembly of claim 2, wherein, The threaded ring block (10) and the sliding block (8) are fixedly connected.

4. The vent check valve gate open and close assembly of claim 3, wherein, The end of the handle shaft (11) extends to the inner cavity of the groove plate (13), the surface of the handle shaft (11) is rotatably connected with the rotating sleeve (14), and the surface of the rotating sleeve (14) is attached to the inner wall of the groove plate (13).

5. The vent check valve gate open and close assembly of claim 4, wherein, The end of the threaded rod (9) penetrates to the outside of the rectangular box (6) and is fixedly connected with the handle block (15).

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