Aperture iris valve

Abstract

The utility model relates to the technical field of iris valves, in particular to an aperture iris valve. According to the technical scheme, the impeller comprises a main body and a through hole, the through hole is formed in the main body, a sliding groove is formed in the main body, the sliding groove is in a regular hexagon shape, a plurality of blades are installed in the sliding groove in a sliding mode, every two adjacent blades are connected in a sliding mode, and under driving of one blade, the multiple blades do synchronous reciprocating motion along the sliding groove. In the reciprocating motion process, the blades are spliced into a complete plane or a plane with a notch in the center, the through holes are mutually separated or communicated, a notch is formed in the body, and a connecting rod is installed in the notch in a sliding mode. Particle impurities are prevented from entering equipment, the sealing performance of the equipment is improved, and the equipment is prevented from being stuck.

Description

Technical Field

[0001] The utility model relates to the technical field of iris valves, in particular to an aperture iris valve. Background Art

[0002] A valve is a mechanical device for controlling the flow rate, flow direction, pressure, temperature, etc. of a flowing fluid medium, and is the most commonly used basic component in a pipeline system; an iris valve is often used for controlling the material flow in a direct-fall system. The iris valve has the advantages of safe and reliable operation, simple and convenient maintenance, easy replacement of each component, and low use cost.

[0003] In order to control the opening or closing of the iris valve, a notch is usually provided on the device to facilitate the movement control of the internal blades. However, since the notch is always open in the working environment, impurities and particles are very likely to enter the inside, which easily causes jamming and makes it impossible to move the blades. Therefore, the present application proposes an aperture iris valve. Summary of the Invention

[0004] The purpose of the utility model is to propose an aperture iris valve for the problem that impurities and particles are likely to enter the device and cause jamming in the background art.

[0005] The technical solution of the utility model: The aperture iris valve includes a main body, and further includes:

[0006] A through hole, the through hole is opened on the main body, a sliding groove is opened in the main body, the sliding groove is regular hexagon-shaped, a plurality of blades are slidably installed in the sliding groove, adjacent blades are slidably connected, and driven by one of the blades, the plurality of blades perform synchronous reciprocating motion along the sliding groove. During the reciprocating motion, the blades are spliced into a complete plane or a plane with a notch in the center, so that the through holes are mutually blocked or communicated. A notch is opened on the main body, a connecting rod is slidably installed in the notch, the connecting rod is fixedly connected with one of the blades, and an auxiliary mechanism for sealing the connecting rod is arranged in the main body.

[0007] Optionally, the auxiliary mechanism includes sealing plates fixedly and symmetrically slidably installed in the notch. One end of the sealing plate is sealed with the notch, and a sealing block is fixedly installed at the other end of the sealing plate. The sealing block is arc-shaped. The two sealing blocks are attached to the connecting rod and seal the contact position of the connecting rod. A fixing block is fixedly installed on one side of the sealing block, and a first spring is fixedly installed at one end of the fixing block. The first spring is in a compressed state, and one end of the first spring is fixedly connected with the inner wall of the notch. A fixing mechanism for limiting the connecting rod is arranged in the main body.

[0008] Optionally, the fixing mechanism includes a limiting plate on the fixing link. A plurality of equally spaced limiting holes are formed on one side of the limiting plate. The main body is slidably installed with a limiting rod. One end of the limiting rod is located in the limiting hole, and a pulling plate is fixedly installed at one end of the limiting rod.

[0009] Optionally, a guiding post is fixedly installed at the bottom of the blade, and the guiding post is located in the sliding groove.

[0010] Optionally, a connecting rod is fixedly installed on the blade, and the connecting rod is fixedly connected to the link.

[0011] Optionally, a second spring is fixedly installed on the main body, and one end of the second spring is fixedly connected to the pulling plate.

[0012] Optionally, a pushing block is fixedly installed at one end of the link, and anti-slip lines are provided on the pushing block.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. By pulling the pulling plate outwards, the pulling plate drives the limiting rod out of the limiting block hole, canceling the fixation of the limiting plate. At this time, the link can be moved to adjust the internal passage area of the through hole. After the adjustment is completed, the second spring rebounds to drive the limiting rod to insert into the limiting hole to fix the limiting plate, avoiding the displacement of the link under the extrusion of the first spring.

[0015] 2. By driving one of the blades to move through the link, as the link moves, the side surface of the link squeezes the sealing block. Since the first springs are all in a compressed state, when the link moves, the first springs can drive the sealing block to always fit against the side surface of the link. Cooperating with the sealing plate, the notch is sealed at all times, blocking the impurity particles outside the notch.

[0016] The utility model realizes the prevention of particulate impurities from entering the equipment, improves the sealing performance of the equipment, and avoids the jamming of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The split structural schematic diagram of an embodiment of the utility model is given;

[0018] Figure 2 The structural schematic diagram of an embodiment of the utility model is given;

[0019] Figure 3 For Figure 1 The partial enlarged structural schematic diagram at A in

[0020] Reference numerals: 1, main body; 2, through hole; 3, push block; 4, connecting rod; 5, guide post; 6, chute; 7, blade; 8, sealing block; 9, notch; 10, sealing plate; 11, pull plate; 12, second spring; 13, limit hole; 14, connecting rod; 15, fixed block; 16, first spring; 17, limit plate; 18, limit rod. Detailed implementation manners

[0021] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] Embodiment

[0023] As Figure 1-2 shown, the aperture iris valve proposed by the present utility model includes a main body 1, and further includes:

[0024] A through hole 2, the through hole 2 is opened on the main body 1, a chute 6 is opened in the main body 1, the chute 6 is regular hexagon, a plurality of blades 7 are slidably installed in the chute 6, adjacent blades 7 are slidably connected, driven by one of the blades, the plurality of blades 7 perform synchronous reciprocating motion along the chute 6, during the reciprocating motion, the blades 7 are spliced into a complete plane or a plane with a notch in the center, so that the through holes 2 are separated or communicated with each other, a notch 9 is opened on the main body 1, a connecting rod 14 is slidably installed in the notch 9, the connecting rod 14 is fixedly connected with one of the blades 7, and an auxiliary mechanism for sealing the connecting rod 14 is arranged in the main body 1.

[0025] As Figure 1-3 shown, this embodiment further includes an auxiliary mechanism, the auxiliary mechanism includes a sealing plate 10 fixedly and symmetrically slidably installed in the notch 9, one end of the sealing plate 10 is sealed with the notch 9, a sealing block 8 is fixedly installed at the other end of the sealing plate 10, the sealing block 8 is arc-shaped, the two sealing blocks 8 are attached to the connecting rod 14 and seal the contact position of the connecting rod 14, a fixed block 15 is fixedly installed on one side of the sealing block 8, a first spring 16 is fixedly installed at one end of the fixed block 15, the first springs 16 are all in a compressed state, one end of the first spring 16 is fixedly connected with the inner wall of the notch 9, when it is necessary to change the internal passage area of the through hole 2, move the connecting rod 14, the connecting rod 14 drives one of the blades 7 to move, as the connecting rod 14 moves, the side surface of the connecting rod 14 presses against the sealing block 8, because the first springs 16 are all in a compressed state, when the connecting rod 14 moves, the first spring 16 can drive the sealing block 8 to always be attached to the side surface of the connecting rod 14, and cooperate with the sealing plate 10 to seal the notch 9, and a fixing mechanism for limiting the connecting rod 14 is arranged in the main body 1.

[0026] As Figure 1-3As shown in the figure, the present embodiment further includes a fixing mechanism. The fixing mechanism includes a limiting plate 17 on the fixing link 14. A plurality of equally spaced limiting holes 13 are provided on one side of the limiting plate 17. A limiting rod 18 is slidably installed on the main body 1. One end of the limiting rod 18 is located in the limiting hole 13. A pulling plate 11 is fixedly installed at one end of the limiting rod 18. When it is necessary to adjust the position of the link 14, the pulling plate 11 is pulled outwards. The pulling plate 11 drives the limiting rod 18 to move out of the limiting hole 13, canceling the fixation of the limiting plate 17. At this time, the link 14 can be moved.

[0027] As Figure 1-3 shown, a guiding column 5 is fixedly installed at the bottom of the blade 7. The guiding column 5 is located in the sliding groove 6. A connecting rod 4 is fixedly installed on the blade 7. The connecting rod 4 is fixedly connected to the link 14. A second spring 12 is fixedly installed on the main body 1. One end of the second spring 12 is fixedly connected to the pulling plate 11. A pushing block 3 is fixedly installed at one end of the link 14. Anti-slip lines are provided on the pushing block 3.

[0028] Working principle: Pull the pulling plate 11 outwards. The pulling plate 11 drives the limiting rod 18 to move out of the limiting hole 13, canceling the fixation of the limiting plate 17. At this time, the link 14 can be moved to adjust the internal passage area of the through hole 2. Move the link 14. The link 14 drives one of the blades 7 to move. As the link 14 moves, the side surface of the link 14 squeezes the sealing block 8. Since the first springs 16 are all in a compressed state, when the link 14 moves, the first springs 16 can drive the sealing block 8 to always fit against the side surface of the link 14. Cooperating with the sealing plate 10, the notch 9 is sealed at all times, blocking the impurity particles outside the notch 9, achieving the prevention of particulate impurities from entering the equipment, improving the sealing performance of the equipment, and preventing the equipment from jamming.

[0029] The above specific embodiments are merely several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. An aperture iris valve, comprising a main body (1), characterized in that: Also includes: A through hole (2), wherein the through hole (2) is provided on a main body (1), wherein a slide groove (6) is provided in the main body (1), wherein the slide groove (6) is a regular hexagon, wherein a plurality of blades (7) are slidably mounted in the slide groove (6), wherein adjacent blades (7) are slidably connected to each other, wherein when driven by one of the blades, the plurality of blades (7) perform synchronous reciprocating motion along the slide groove (6), wherein during the reciprocating motion, the blades (7) are spliced ​​into a complete plane or a plane with a notch in the center, so that the through holes (2) are mutually isolated or connected, wherein a notch (9) is provided on the main body (1), wherein a connecting rod (14) is slidably mounted in the notch (9), wherein the connecting rod (14) is fixedly connected to one of the blades (7), and wherein an auxiliary mechanism for sealing the connecting rod (14) is provided in the main body (1).

2. The aperture iris valve according to claim 1, characterized in that: The auxiliary mechanism comprises a sealing plate (10) fixedly and symmetrically slidably mounted in the slot (9), one end of the sealing plate (10) being sealed with the slot (9), and a sealing block (8) being fixedly mounted on the other end of the sealing plate (10), the sealing block (8) being arranged in an arc shape, the two sealing blocks (8) being fitted with the connecting rod (14) and sealing the contact position of the connecting rod (14), a fixing block (15) being fixedly mounted on one side of the sealing block (8), and a first spring (16) being fixedly mounted on one end of the fixing block (15), the first spring (16) being in a compressed state, and one end of the first spring (16) being fixedly connected with the inner wall of the slot (9), and a fixing mechanism for limiting the connecting rod (14) being arranged in the main body (1).

3. The aperture iris valve according to claim 2, characterized in that: The fixing mechanism comprises a limit plate (17) on a fixed connecting rod (14), a plurality of limit holes (13) arranged at equal distances are opened on one side of the limit plate (17), a limit rod (18) is slidably mounted on the main body (1), one end of the limit rod (18) is located in the limit hole (13), and a pull plate (11) is fixedly mounted on one end of the limit rod (18).

4. The aperture iris valve according to claim 1, characterized in that: A guide column (5) is fixedly mounted on the bottom of the blade (7), and the guide column (5) is located in the slide groove (6).

5. The aperture iris valve according to claim 1, characterized in that: A connecting rod (4) is fixedly mounted on the blade (7), and the connecting rod (4) is fixedly connected to a connecting rod (14).

6. The aperture iris valve according to claim 3, characterized in that: A second spring (12) is fixedly mounted on the main body (1), and one end of the second spring (12) is fixedly connected to the pull plate (11).

7. The aperture iris valve according to claim 1, characterized in that: A push block (3) is fixedly mounted on one end of the connecting rod (14), and anti-slip grooves are provided on the push block (3).

Images