Disconnection type transmission structure of electric control valve

Abstract

The utility model designs a disconnected type transmission structure of an electric control valve, which is characterized in that a long shaft is replaced by a short shaft, and a valve plate is fixed by a shaft I in the middle of a valve body and shafts II which are horizontally and symmetrically arranged on two sides of the valve body and penetrate out of the valve body in cooperation with a straight pin and a straight pin hole, so that synchronous rotation of multiple parts is realized. A first rotary arm is arranged on the outer side of the second shaft and connected with a connecting rod, a driving shaft below the valve body is driven by an electric device, and stability and reliability of valve operation are guaranteed. In addition, the structure further comprises a plurality of sealing pieces to guarantee sealing performance, a self-lubricating shaft sleeve is arranged between the valve body and the valve plate to reduce friction, later maintenance is facilitated, manufacturing cost is reduced, and space utilization efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve accessories equipment technical field relates to a disconnecting type transmission structure of electric regulating valve. BACKGROUND

[0002] Electric regulating valve is through rotating valve blade realizes the opening and the cut-off and the regulating effect of ventilation system, is widely used in electric power, nuclear power and other fields. But the existing large specification electric regulating valve in the early production and later maintenance often will meet the following situations:

[0003] 1, too long transmission shaft, cannot process, even if can process, also not convenient to assemble;

[0004] 2, the space is limited for operation when later maintenance, is difficult to disassemble;

[0005] 3, too long shaft, lead to valve transmission consistency is unstable, influence valve's performance.

[0006] And, for the valve that has design requirement in weight and the like, too long transmission shaft will undoubtedly increase its weight proportion, and further increase the manufacturing cost. SUMMARY

[0007] In order to achieve the above object, the utility model provides a disconnecting type transmission structure of electric regulating valve, solves the existing electric regulating valve disassembly, and the problem of difficult maintenance later.

[0008] To solve the above technical problems, the utility model adopts the technical scheme, a disconnecting type transmission structure of electric regulating valve, characterized by, including valve body, the upper and lower valve seat is arranged in the valve body inside upper and lower both sides,

[0009] Further, shaft one horizontal setting in the middle position of valve body, shaft two symmetry setting in valve body left and right sides and horizontal and go out valve body, and through fastener one will be fixed on the valve body with shaft two;

[0010] Further, the straight pin hole is arranged on the shaft one, shaft two and valve plate, and the valve plate is fixed on the shaft one and shaft two through the straight pin and the straight pin hole;The shaft end of the shaft two that goes out the valve body is provided with a rotary arm one, a connecting rod is arranged on the rotary arm one, and the connecting rod is fixed on the rotary arm one through a pin shaft;

[0011] Further, the driven shaft is further provided below the valve body, the rotary arm two is provided on the shaft end of the driven shaft close to the valve body, and the connecting rod is fixed on the rotary arm two through a pin shaft, the middle of the driven shaft is provided with a device support, the end of the driven shaft away from the valve body is provided with a key groove, and the electric device is fixed on the driven shaft through the device support and the key groove and the flat key.

[0012] Further, the shaft two is on the same horizontal line with the shaft one, the shaft two is provided with a bearing at the position of penetrating the valve body, the shaft two is sequentially provided with a lubricating ring, a sealing sleeve one and an O ring one close to the bearing along the direction of the inside of the valve body, the sealing sleeve one is provided with two O ring positioning grooves, the two positioning grooves are respectively provided with an O ring two and an O ring three, the bearing is provided with a bearing transparent cover, and the bearing is fixed on the shaft two through the bearing transparent cover.

[0013] Further, the shaft two is provided with a shaft retaining ring outside the valve body at the position of penetrating the valve body, the bearing transparent cover is provided with a dust cover one, and the dust cover one is fixed on the bearing transparent cover through a fastener two, the dust cover one and the shaft retaining ring are provided with an O ring four and a gasket.

[0014] Further, the valve body is provided with a self-lubricating bushing in the middle, and the valve plate is provided with retaining rings at positions corresponding to the two ends of the shaft one.

[0015] Further, the valve plate is provided with a small skylight at the position of the shaft one, the shaft one is provided with two holes at the position corresponding to the small skylight, and the valve plate is further provided with a dust cover two at the small skylight, and the dust cover two is fixed on the valve plate through a fastener three and a dust gasket.

[0016] Further, the valve body is provided with side valve seats at positions corresponding to the four corners of the valve plate, the side valve seats and the valve body are provided with side valve seat sealing gaskets, and the valve body and the upper and lower valve seats are also provided with upper and lower valve seat sealing gaskets.

[0017] The utility model discloses a kind of disconnecting transmission structures of electric regulating valve, can realize the synchronous rotation of multiple valves, not only facilitate processing production, and effectively reduce the weight of valve, save the cost of processing.And, this design does not sacrifice the performance of valve as a price, instead, ensure the reliability and stability of valve in the operation process.For post-maintenance, even in a small space, maintenance personnel can easily carry out replacement operation using the valve of disconnecting shaft connection structure, with high flexibility and convenience. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 It is the front view of the disconnecting transmission structure of the electric regulating valve of the utility model embodiment.

[0020] Figure 2 is a side view of the disconnect type transmission structure of the electric regulating valve according to the embodiments of the present application.

[0021] Figure 3 is Figure 1 is a sectional view along A-A in the middle.

[0022] Figure 4 is Figure 1 is an enlarged view along K in the middle.

[0023] Figure 5 is Figure 1 is a sectional view along B-B in the middle.

[0024] Figure 6 is Figure 1 is an enlarged view along M in the middle.

[0025] In the figure, 1. valve body, 2. valve plate, 3. shaft one, 4. self-lubricating shaft sleeve, 5. retaining ring, 6. O-ring one, 7. O-ring two, 8. sealing sleeve one, 9. lubricating ring, 10. O-ring three, 11. fastener one, 12. bearing cover, 13. bearing, 14. O-ring four, 15. gasket, 16. shaft two, 17. shaft retaining ring, 18. fastener two, 19. dust sealing cover one, 20. rotary arm one, 21. electric device, 22. rotary arm two, 23. flat key, 24. driving shaft, 25. device support, 26. upper and lower valve seat sealing gasket, 27. upper and lower valve seat, 28. side valve seat sealing gasket, 29. side valve seat, 30. connecting rod, 31. dust sealing gasket, 32 dust sealing cover two, 33. fastener three. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] The embodiments of the present application provide a disconnect type transmission structure of an electric regulating valve, as shown in the figure, the disconnect type transmission structure of the electric regulating valve comprises a valve body 1, Figures 1-6

[0028] Both upper and lower sides of the valve body 1 are provided with upper and lower valve seats 27, and upper and lower valve seat sealing gaskets 26 are arranged between the valve body 1 and the upper and lower valve seats 27 to realize sealing.

[0029] ​The shaft one 3 is horizontally arranged at the middle position of the valve body 1, the shaft two 16 is symmetrically arranged at the left and right sides of the valve body 1 and horizontally penetrates out of the valve body 1, and the shaft two 16 is fixed on the valve body 1 through the fastener one 11, the shaft two 16 is on the same horizontal line with the shaft one 3, the shaft two 16 is provided with the bearing 13 at the position penetrating out of the valve body 1, and the shaft two 16 is sequentially provided with the lubricating ring 9, the sealing sleeve one 8 and the O-ring one 6 in the direction of the inside of the valve body 1 close to the bearing 13.

[0030] The sealing sleeve one 8 is provided with two O-ring positioning grooves, the O-ring two 7 and the O-ring three 10 are arranged on the two positioning grooves respectively, and the O-ring and the sealing sleeve cooperate to realize the sealing between the shaft two 16 and the valve body 1.

[0031] The bearing 13 is provided with the bearing transparent cover 12, the bearing 13 is fixed on the shaft two 16 through the bearing transparent cover 12, and the sealing sleeve one 8 and the lubricating ring 9 can position the bearing 13. The bearing 13 can not only reduce the friction generated when the shaft two 16 rotates, but also can support the shaft two 16 to ensure the rotation accuracy of the shaft two 16.

[0032] The shaft two 16 is provided with the shaft check ring 17 outside the valve body 1 at the position penetrating out of the valve body 1, which can prevent the shaft two 16 from moving left and right during rotation, the bearing transparent cover 12 is provided with the dust cover one 19, and the dust cover one 19 is fixed on the bearing transparent cover 12 through the fastener two 18, the dust cover one 19 and the shaft check ring 17 are provided with the O-ring four 14 and the gasket 15, which can further ensure the sealing between the valve body 1 and the shaft two 16.

[0033] The shaft one 3, the shaft two 16 and the valve plate 2 are all provided with straight pin holes, the valve plate 2 is fixed on the shaft one 3 and the shaft two 16 through the straight pin and the straight pin hole, so as to realize the synchronous rotation of the shaft one 3, the shaft two 16 and the valve plate 2, the valve body 1 is provided with the self-lubricating shaft sleeve 4 in the middle, the valve plate 2 is provided with the check ring 5 at the positions corresponding to the two ends of the shaft one 3, and the shaft one 3 penetrates through the check ring 5 and the self-lubricating shaft sleeve 4 in sequence during installation, the self-lubricating shaft sleeve 4 can reduce the friction generated when the shaft one 3 rotates, and the check ring 5 can keep the valve plate 2 and the valve body 1 in a sealed state during rotation.

[0034] The valve plate 2 is provided with a small skylight at the position of the shaft one 3, the shaft one 3 is provided with two holes at the position corresponding to the small skylight, a steel rod is inserted into the hole, and the shaft one 3 can move left and right under the action of external force, thereby realizing the disassembly and assembly of the valve plate 2.

[0035] The valve plate 2 is further provided with the dust cover two 32 at the small skylight, and the dust cover two 32 is fixed on the valve plate 2 through the fastener three 33 and the dust gasket 31.

[0036] The valve body 1 is provided with a side valve seat 29 at the corresponding position of the four corners of the valve plate 2, which can effectively ensure the stability of the valve plate 2 during opening and closing, and the side valve seat 29 and the valve body 1 are provided with a side valve seat sealing gasket 28, which can effectively ensure the sealing of the valve during closing.

[0037] The shaft two 16 is provided with a rotary arm one 20 at the shaft end of the valve body 1, the rotary arm ones 20 on both sides are connected by a connecting rod 30, and the connecting rod 30 is fixed on the rotary arm one 20 by a pin shaft, so that all the shafts one 3, the shaft two 16 and the valve plate 2 are linked.

[0038] The valve body 1 is further provided with a driving shaft 24, the driving shaft 24 is provided with a rotary arm two 22 near the shaft end of the valve body 1, and the connecting rod 30 is fixed on the rotary arm two 22 by a pin shaft, the middle of the driving shaft 24 is provided with a device support 25, the end of the driving shaft 24 away from the valve body 1 is provided with a key groove, and the electric device 21 is fixed on the driving shaft 24 through the device support 25, the key groove and the flat key 23.

[0039] The electric device 21 is started, the driving shaft 24 outputs torque, drives the rotary arm two 22 and the connecting rod 30 to rotate, the connecting rod 30 drives the rotary arm one 20 and the shaft two 16 to rotate, and then drives the valve plate 2 and the shaft one 3 to rotate together, so that the valve plate 2, the shaft one 3 and the shaft two 16 are synchronously rotated, the opening of the valve is realized through the above linkage mechanism, and the valve is closed by stopping the electric device 21.

[0040] In the embodiment, the shaft one 3 and the shaft two 16 are relatively small short shafts, the valve plate 2 is opened and closed through the shaft one 3 and the shaft two 16, and the problems of long shaft machining, difficult disassembly and maintenance are effectively avoided.

[0041] The disconnecting transmission structure of the electric regulating valve in the embodiment is symmetrical on the left and right sides, and the key groove directions on the driving shafts 24 on the two sides are opposite.

[0042] Each embodiment in the specification is described in a related manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment mainly explains the difference from other embodiments.

[0043] The above only describes the preferred embodiment of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims

1. A disconnectable transmission structure for an electric regulating valve, comprising a valve body (1), wherein upper and lower valve seats (27) are provided on both the upper and lower sides inside the valve body (1), characterized in that, Shaft 1 (3) is horizontally positioned in the middle of the valve body (1), and shaft 2 (16) is symmetrically positioned on the left and right sides of the valve body (1) and extends horizontally through the valve body (1). Shaft 2 (16) is fixed to the valve body (1) by fastener 1 (11). The shaft 1 (3), shaft 2 (16) and valve plate (2) are all provided with pin holes, and the valve plate (2) is fixed on shaft 1 (3) and shaft 2 (16) through pins and pin holes; The shaft 2 (16) is provided with a rotating arm 1 (20) at the shaft end of the valve body (1). A connecting rod (30) is provided on the rotating arm 1 (20), and the connecting rod (30) is fixed on the rotating arm 1 (20) by a pin. A drive shaft (24) is also provided below the valve body (1). A second rotating arm (22) is provided at the shaft end of the drive shaft (24) near the valve body (1), and the connecting rod (30) is fixed on the second rotating arm (22) by a pin. A device bracket (25) is provided in the middle of the drive shaft (24). A keyway is provided at the end of the drive shaft (24) away from the valve body (1), and the electric device (21) is fixed on the drive shaft (24) by the device bracket (25), the keyway, and the flat key (23).

2. The disconnectable transmission structure of an electric regulating valve according to claim 1, characterized in that, The second shaft (16) and the first shaft (3) are on the same horizontal line. The second shaft (16) is provided with a bearing (13) at the point where it passes through the valve body (1). The second shaft (16) is provided with a lubricating ring (9), a sealing sleeve (8) and an O-ring (6) in sequence along the inner side of the valve body (1) close to the bearing (13). The sealing sleeve 1 (8) is provided with two O-ring positioning grooves, and O-ring 2 (7) and O-ring 3 (10) are respectively provided on the two positioning grooves. The bearing (13) is provided with a bearing cover (12) and the bearing (13) is fixed on the shaft (16) through the bearing cover (12).

3. The disconnectable transmission structure of an electric regulating valve according to claim 1, characterized in that, The shaft 2 (16) is provided with a shaft retaining ring (17) on the outside of the valve body (1) where it passes through the valve body (1). A dust cover 1 (19) is provided on the bearing cover (12), and the dust cover 1 (19) is fixed on the bearing cover (12) by fastener 2 (18). An O-ring 4 (14) and a gasket (15) are provided between the dust cover 1 (19) and the shaft retaining ring (17).

4. The disconnectable transmission structure of an electric regulating valve according to claim 1, characterized in that, The valve body (1) is provided with a self-lubricating bushing (4) in the middle, and the valve plate (2) is provided with retaining rings (5) at the positions corresponding to the two ends of the shaft (3).

5. The disconnectable transmission structure of an electric regulating valve according to claim 4, characterized in that, The valve plate (2) has a small skylight at the position of shaft one (3). Shaft one (3) has two holes at the position corresponding to the small skylight. The small skylight of the valve plate (2) is also provided with a dust cover two (32), and the dust cover two (32) is fixed on the valve plate (2) by fastener three (33) and dust gasket (31).

6. The disconnectable transmission structure of an electric regulating valve according to claim 1, characterized in that, The valve body (1) is provided with a side valve seat (29) at the four corners of the valve plate (2). A side valve seat sealing gasket (28) is provided between the side valve seat (29) and the valve body (1). An upper and lower valve seat sealing gasket (26) is also provided between the valve body (1) and the upper and lower valve seats (27).

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