Sealing type valve casting

Abstract

The utility model provides a sealing type valve casting, which relates to the technical field of valve castings and comprises a valve body, a circular shaft is arranged on one side of the valve body, a turntable is arranged on one side of the circular shaft, a sealing device is arranged on one side, close to the circular shaft, of the valve body, and a protective device is arranged on one side of the valve body. The sealing device comprises a circular groove formed in one side of the valve body, the side, close to the circular groove, of the circular shaft is fixedly connected with a circular plate, the side, close to the circular plate, of the circular shaft is provided with a threaded groove, the surface of the circular shaft is in threaded connection with a screw hole ring through the threaded groove, and one side of the screw hole ring is fixedly connected with a clamping ring. The sealing device is arranged to seal an abrasion gap between the circular shaft and the valve body, the situation that fluid in the valve body seeps through the gap between the circular shaft and the valve body is reduced, and the use sealing performance of the valve body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve casting technical field especially relates to a sealing type valve casting. BACKGROUND

[0002] Valve is the control component in fluid conveying system, is used for open and close pipeline, controls flow direction, adjusts and controls the parameter check valve, regulating valve etc.

[0003] The existing valve casting adopts the connection with pipeline in the use process, then utilizes the rotating disc on the valve body and the circular shaft to drive the valve plate, gate plate, valve ball etc. rotation, realizes the closure sealing of valve body, thereby realizes the opening and closing in the fluid conveying process, but due to the gap between the circular shaft and valve body after multiple rotation abrasion, the fluid in the valve body can seep through the gap, affects the sealing effect of valve body to fluid. SUMMARY

[0004] The utility model provides a sealing type valve casting to solve the shortcoming in prior art.

[0005] In order to realize the above-mentioned purpose, the utility model discloses the following technical scheme: a sealing type valve casting, including the valve body, the one side of valve body is provided with circular shaft, the one side of circular shaft is provided with rotating disc, the one side of valve body near circular shaft is provided with sealing device, the one side of valve body is provided with protection device, the sealing device includes the circular groove of being set in the one side of valve body, the one side of circular shaft near circular groove is fixedly connected with round plate, the one side of circular shaft near round plate is provided with thread groove, the surface of circular shaft is connected with the screw hole ring of thread groove through thread groove, the one side of screw hole ring is fixedly connected with snap ring, the surface of snap ring and the inner wall of circular groove are slidably connected, the surface of snap ring is set in the surface of round plate, the one side of screw hole ring near snap ring is fixedly connected with sealing pad, the surface of sealing pad is greater than the inner wall of circular groove.

[0006] The effect reached by the above-mentioned components is that: by setting sealing device, when circular shaft rotates, under the thread connection of thread groove and screw hole ring, circular shaft drives screw hole ring to move up and down along its surface through thread groove, screw hole ring drives snap ring to move up and down along the inside of circular groove, screw hole ring drives sealing pad to move up and down, when snap ring moves to the position of abutting with the inner wall of circular groove, screw hole ring extrudes sealing pad, sealing pad closes the gap between round plate and snap ring and the gap between snap ring and circular groove, sealing pad cooperates with screw hole ring and snap ring to seal the abrasion gap between circular shaft and valve body, reduces the seepage of fluid in valve body through the gap between circular shaft and valve body, improves the sealing property of valve body.

[0007] Preferably, the inner wall of the circular groove is fixedly connected with a first rubber pad, and the first rubber pad is sleeved on the surface of the circular shaft.

[0008] The above-mentioned component achieves the effect that: by arranging the first rubber pad, the clamping ring can be moved to a position for pressing the first rubber pad to assist in sealing the gap between the circular shaft and the valve body, thereby further improving the sealing performance between the circular shaft and the valve body.

[0009] Preferably, a plurality of reinforcing ribs are fixedly connected to one side of the threaded hole ring, and the reinforcing ribs are arranged at equal distances.

[0010] The above-mentioned component achieves the effect that: by arranging the reinforcing ribs, the reinforcing ribs can increase the strength of the threaded hole ring and reduce the shaking of the threaded hole ring during use.

[0011] Preferably, a circular hole block is fixedly connected to one side of the threaded hole ring, and a positioning rod is fixedly connected to the side of the valve body close to the circular shaft, and the surface of the positioning rod is in sliding connection with the inner part of the circular hole block.

[0012] The above-mentioned component achieves the effect that: by arranging the positioning rod, the positioning rod can be located in the inner part of the circular hole block to assist in limiting the threaded hole ring and reduce the rotation or shaking of the threaded hole ring during use.

[0013] Preferably, a limiting block is fixedly connected to one end of the positioning rod, and the surface of the limiting block is larger than the inner wall of the circular hole block.

[0014] The above-mentioned component achieves the effect that: by arranging the limiting block, the limiting block can assist in intercepting the circular hole block during movement and reduce the disengagement of the circular hole block from the surface of the positioning rod.

[0015] Preferably, the protection device comprises a telescopic rod, the telescopic rod is fixedly connected with the valve body, one end of the telescopic rod away from the valve body is fixedly connected with a protection plate, one side of the protection plate close to the telescopic rod is fixedly connected with a spring, the spring is sleeved on the surface of the telescopic rod, and the other end of the spring is fixedly connected with the valve body.

[0016] The above-mentioned component achieves the effect that: by arranging the protection device, when an external object is about to collide with the valve body, the protection plate intercepts the external object, the telescopic rod intercepts the protection plate during movement, the telescopic rod separates the protection plate during movement from the valve body, under the reaction force of the spring, the spring pushes the protection plate away from the valve body, reduces the impact force generated when the protection plate is collided, thereby protecting the valve body, reducing the accidental collision of the valve body with external objects during use, preventing the valve body from being damaged and affecting use, and improving the use safety of the valve body.

[0017] Preferably, one side of the protective plate is fixedly connected with a second rubber pad, and a surface of the second rubber pad is arc-shaped.

[0018] The above component achieves the effect that the second rubber pad can block objects from the surface of the protective plate, reducing the damage to the surface of the protective plate when the surface is collided.

[0019] Preferably, one side of the protective plate close to the telescopic rod is fixedly connected with a reinforcing block, and the reinforcing block is fixedly connected with the telescopic rod.

[0020] The above component achieves the effect that the reinforcing block can reinforce the connection between the protective plate and the telescopic rod, reducing the separation of the protective plate and the telescopic rod.

[0021] Compared with the prior art, the utility model has the advantages and positive effects that:

[0022] In the utility model, the sealing device is arranged to seal the wear gap between the circular shaft and the valve body, reduces the leakage of the fluid in the valve body through the gap between the circular shaft and the valve body, and improves the use sealing property of the valve body. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0024] Figure 2 It is a partial sectional view of the utility model clasp;

[0025] Figure 3 It is a partial structure sectional view of the utility model valve body;

[0026] Figure 4 It is a partial structure schematic view of the utility model protective plate.

[0027] Legend: 1, valve body; 2, circular shaft; 3, rotating disc; 4, sealing device; 41, circular groove; 42, circular plate; 43, threaded groove; 44, first rubber pad; 45, positioning rod; 46, limiting block; 47, screw hole ring; 48, clasp; 49, sealing gasket; 410, circular hole block; 411, reinforcing rib; 5, protective device; 51, telescopic rod; 52, protective plate; 53, spring; 54, second rubber pad; 55, reinforcing block. DETAILED DESCRIPTION

[0028] Reference Figures 1-3As shown in the figure, the embodiment discloses a sealing type valve casting, which comprises a valve body 1, a round shaft 2 arranged on one side of the valve body 1, a rotating disc 3 arranged on one side of the round shaft 2, a sealing device 4 arranged on one side of the valve body 1 close to the round shaft 2, and a protection device 5 arranged on one side of the valve body 1. The sealing device 4 comprises a circular groove 41 arranged on one side of the valve body 1, a circular plate 42 fixedly connected to one side of the circular groove 41, a threaded groove 43 arranged on one side of the circular plate 42, a threaded hole ring 47 threadedly connected to the surface of the circular plate 2 through the threaded groove 43, a clamping ring 48 fixedly connected to one side of the threaded hole ring 47, and a sealing gasket 49 fixedly connected to one side of the clamping ring 48 close to the threaded hole ring 47. The surface of the sealing gasket 49 is larger than the inner wall of the circular groove 41. When the round shaft 2 rotates, the threaded hole ring 47 moves up and down along the surface of the circular plate 2 under the threaded connection between the threaded groove 43 and the threaded hole ring 47, the threaded hole ring 47 drives the clamping ring 48 to move up and down inside the circular groove 41, and the threaded hole ring 47 drives the sealing gasket 49 to move up and down. When the clamping ring 48 moves to the position abutting against the inner wall of the circular groove 41, the threaded hole ring 47 extrudes the sealing gasket 49, the sealing gasket 49 seals the gap between the circular plate 42 and the clamping ring 48 and the gap between the clamping ring 48 and the circular groove 41, and the sealing gasket 49 cooperates with the threaded hole ring 47 and the clamping ring 48 to seal the wear gap between the round shaft 2 and the valve body 1. The fluid in the valve body 1 is prevented from leaking through the gap between the round shaft 2 and the valve body 1, and the use sealing property of the valve body 1 is improved.

[0029] Referring to Figure 2 and Figure 3 As shown in the figure, the embodiment discloses that the inner wall of the circular groove 41 is fixedly connected with a first rubber gasket 44, and the first rubber gasket 44 is sleeved on the surface of the circular shaft 2. By arranging the first rubber gasket 44, the clamping ring 48 can be moved to a position extruding the first rubber gasket 44 to assist in sealing the gap between the circular shaft 2 and the valve body 1, thereby further improving the sealing property between the circular shaft 2 and the valve body 1. The threaded hole ring 47 is fixedly connected with a plurality of reinforcing ribs 411 on one side, and the plurality of reinforcing ribs 411 are arranged at equal distances. By arranging the reinforcing ribs 411, the reinforcing ribs 411 can increase the strength of the threaded hole ring 47 and reduce the shaking of the threaded hole ring 47 during use.

[0030] Referring to Figure 2 and Figure 3As shown, the embodiment discloses that one side of the screw hole ring 47 is fixedly connected with a round hole block 410, one side of the valve body 1 close to the circular shaft 2 is fixedly connected with a positioning rod 45, the surface of the positioning rod 45 is in sliding connection with the inside of the round hole block 410, the positioning rod 45 is arranged to assist in limiting the screw hole ring 47 in the inside of the round hole block 410, to reduce the rotation or shaking of the screw hole ring 47 in use, one end of the positioning rod 45 is fixedly connected with a limiting block 46, the surface of the limiting block 46 is larger than the inner wall of the round hole block 410, the limiting block 46 is arranged to assist in intercepting the round hole block 410 in movement, to reduce the disengagement of the round hole block 410 from the surface of the positioning rod 45.

[0031] Referring to Figure 4 As shown, the embodiment discloses that the protection device 5 includes a telescopic rod 51, the telescopic rod 51 is fixedly connected with the valve body 1, one end of the telescopic rod 51 away from the valve body 1 is fixedly connected with a protection plate 52, one side of the protection plate 52 close to the telescopic rod 51 is fixedly connected with a spring 53, the spring 53 is sleeved on the surface of the telescopic rod 51, the other end of the spring 53 is fixedly connected with the valve body 1, the protection device 5 is arranged to intercept the object outside when the object is about to collide with the valve body 1, to intercept the protection plate 52 in movement by the telescopic rod 51, to separate the protection plate 52 in movement from the valve body 1 by the telescopic rod 51, to push the protection plate 52 away from the valve body 1 by the spring 53 under the reaction force of the spring 53, to reduce the impact force generated when the protection plate 52 is collided, to protect the valve body 1, to reduce the accidental collision of the valve body 1 with the object outside in use, to cause the valve body 1 to be damaged and affect use, and to improve the use safety of the valve body 1.

[0032] Referring to Figure 4 As shown, the embodiment discloses that one side of the protection plate 52 is fixedly connected with a second rubber pad 54, the surface of the second rubber pad 54 is arc-shaped, the second rubber pad 54 is arranged to block the object from the surface of the protection plate 52, to reduce the large damage to the surface of the protection plate 52 caused by collision, one side of the protection plate 52 close to the telescopic rod 51 is fixedly connected with a reinforcing block 55, the reinforcing block 55 is fixedly connected with the telescopic rod 51, the reinforcing block 55 is arranged to reinforce the connection between the protection plate 52 and the telescopic rod 51, to reduce the separation of the protection plate 52 from the telescopic rod 51.

[0033] Working principle: first, the valve body 1 is connected with the pipeline, then the rotating disc 3 on the valve body 1 is used to drive the valve plate, the gate plate, the valve ball and other structures to rotate with the circular shaft 2, to realize the closed sealing of the valve body 1, to realize the opening and closing in the fluid conveying process.

[0034] When the circular shaft 2 rotates, under the threaded connection of the threaded groove 43 and the threaded hole ring 47, the circular shaft 2 drives the threaded hole ring 47 to move up and down along the surface of the threaded hole ring 47 through the threaded groove 43, the threaded hole ring 47 drives the clamping ring 48 to move up and down along the inner wall of the circular groove 41, the threaded hole ring 47 drives the sealing gasket 49 to move up and down, when the clamping ring 48 moves to the position of abutting the inner wall of the circular groove 41, the threaded hole ring 47 extrudes the sealing gasket 49, the sealing gasket 49 seals the gap between the circular plate 42 and the clamping ring 48 and the gap between the clamping ring 48 and the circular groove 41, the sealing gasket 49 cooperates with the threaded hole ring 47 and the clamping ring 48 to seal the wear gap between the circular shaft 2 and the valve body 1, and auxiliary sealing between the circular shaft 2 and the valve body 1 is completed.

[0035] When an external object is about to collide with the valve body 1, the protective plate 52 intercepts the external object, the telescopic rod 51 intercepts the protective plate 52 in the moving process, the telescopic rod 51 separates the protective plate 52 in the moving process from the valve body 1, under the reaction force of the spring 53, the spring 53 pushes the protective plate 52 away from the valve body 1, the impact force generated when the protective plate 52 is collided is reduced, and the valve body 1 is protected.

[0036] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments without departing from the technical scheme of the present application, according to the technical essence of the present application, still belong to the protection scope of the present application. In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, and it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

Claims

1. A valve casting of the sealing type, comprising a valve body (1), characterized in that: The side of the valve body (1) is provided with a round shaft (2), one side of the round shaft (2) is provided with a rotating disc (3), one side of the valve body (1) close to the round shaft (2) is provided with a sealing device (4), one side of the valve body (1) is provided with a protection device (5), the sealing device (4) comprises a circular groove (41) opened in one side of the valve body (1), the circular groove (41) is fixedly connected with a circular plate (42) on one side close to the circular groove (41), the circular plate (42) is provided with a threaded groove (43) on one side close to the circular plate (42), the surface of the circular plate (42) is threadedly connected with a threaded hole ring (47) through the threaded groove (43), one side of the threaded hole ring (47) is fixedly connected with a clamping ring (48), the surface of the clamping ring (48) is slidably connected with the inner wall of the circular groove (41), the clamping ring (48) is sleeved on the surface of the circular plate (42), the threaded hole ring (47) is fixedly connected with a sealing gasket (49) on one side close to the clamping ring (48), the surface of the sealing gasket (49) is larger than the inner wall of the circular groove (41).

2. A sealed valve casting according to claim 1, characterized in that: The inner wall of the circular groove (41) is fixedly connected with a first rubber pad (44), and the first rubber pad (44) is sleeved on the surface of the circular shaft (2).

3. A sealed valve casting according to claim 1, wherein: A plurality of reinforcing ribs (411) are fixedly connected to one side of the threaded hole ring (47), and the plurality of reinforcing ribs (411) are arranged at equal distances.

4. A sealed valve casting according to claim 1, wherein: A circular hole block (410) is fixedly connected to one side of the threaded hole ring (47), a positioning rod (45) is fixedly connected to one side of the valve body (1) close to the circular shaft (2), and the surface of the positioning rod (45) is slidably connected with the inside of the circular hole block (410).

5. A sealed valve casting according to claim 4, wherein: One end of the positioning rod (45) is fixedly connected with a limiting block (46), and the surface of the limiting block (46) is larger than the inner wall of the circular hole block (410).

6. A sealed valve casting according to claim 1, wherein: The protection device (5) comprises a telescopic rod (51), the telescopic rod (51) is fixedly connected with the valve body (1), one end of the telescopic rod (51) away from the valve body (1) is fixedly connected with a protection plate (52), one side of the protection plate (52) close to the telescopic rod (51) is fixedly connected with a spring (53), the spring (53) is sleeved on the surface of the telescopic rod (51), and the other end of the spring (53) is fixedly connected with the valve body (1).

7. A sealed valve casting according to claim 6, wherein: One side of the protection plate (52) is fixedly connected with a second rubber pad (54), and the surface of the second rubber pad (54) is arc-shaped.

8. A sealed valve casting according to claim 6, wherein: One side of the protection plate (52) close to the telescopic rod (51) is fixedly connected with a reinforcing block (55), and the reinforcing block (55) is fixedly connected with the telescopic rod (51).

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